WO2017148932A1 - Pompe à chaleur à refroidissement d'arbre par convection - Google Patents

Pompe à chaleur à refroidissement d'arbre par convection Download PDF

Info

Publication number
WO2017148932A1
WO2017148932A1 PCT/EP2017/054624 EP2017054624W WO2017148932A1 WO 2017148932 A1 WO2017148932 A1 WO 2017148932A1 EP 2017054624 W EP2017054624 W EP 2017054624W WO 2017148932 A1 WO2017148932 A1 WO 2017148932A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
condenser
heat pump
steam
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/054624
Other languages
German (de)
English (en)
Inventor
Oliver Kniffler
Holger Sedlak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Efficient Energy GmbH
Original Assignee
Efficient Energy GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Efficient Energy GmbH filed Critical Efficient Energy GmbH
Priority to EP17709020.6A priority Critical patent/EP3423762B1/fr
Publication of WO2017148932A1 publication Critical patent/WO2017148932A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • F25B31/008—Cooling of compressor or motor by injecting a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type

Definitions

  • the present invention relates to heat pumps for heating, cooling or for any other application of a heat pump.
  • FIG. 8A and 8B illustrate a heat pump as described in European patent EP 2016349 B1.
  • the heat pump initially comprises an evaporator 10 for evaporating water as the working fluid in order to produce a steam in a working steam line 12 on the output side.
  • the evaporator comprises an evaporation space (not shown in FIG. 8A) and is designed to generate an evaporation pressure of less than 20 hPa in the evaporation space, so that the water evaporates at temperatures below 15 ° C. in the evaporation space.
  • the water is eg groundwater, in the ground free or in collector pipes circulating brine, so water with a certain salinity, river water, seawater or seawater.
  • the turbomachine is designed to compress the working steam to a vapor pressure at least greater than 25 hPa.
  • 25 hPa corresponds to a condensing temperature of about 22 ° C, which can already be a sufficient heating flow temperature of a floor heating system, at least on relatively warm days.
  • pressures greater than 30 hPa can be generated with the turbomachine 16, wherein a pressure of 30 hPa has a liquefaction temperature of 24 ° C, a pressure of 60 hPa has a liquefaction temperature of 36 ° C, and a pressure of 100 hPa corresponds to a liquefaction temperature of 45 ° C.
  • Floor- Heaters are designed to heat adequately with a flow temperature of 45 ° C, even on very cold days.
  • the turbomachine is coupled to a condenser 18, which is designed to liquefy the compressed working steam.
  • a condenser 18 By liquefying the energy contained in the working steam is supplied to the condenser 18, to then be supplied via the flow 20a a heating system.
  • the working fluid flows back into the condenser via the return line 20b.
  • the steam is so much energy withdrawn that this is liquefied and also participates in the heating circuit.
  • a material entry into the condenser or the heating system takes place, which is regulated by a drain 22, such that the condenser has a water level in its condenser, which remains despite the constant supply of water vapor and thus condensate always below a maximum level.
  • the water to be evaporated could first be heated by a heat exchanger from an external heat source.
  • the medium is also used directly there, when thinking of a house with underfloor heating, the water that is of the Evaporator comes to circulate directly in the underfloor heating.
  • a heat exchanger can also be arranged on the condenser side, which is fed with the feed line 20a and which has the return line 20b, this heat exchanger cooling the water in the condenser and thus a separate underfloor heating liquid, which will typically be water, heating up.
  • turbomachines have the properties that they - similar to an aircraft turbine - the compressed medium not with problematic substances, such as oil, in connection. Instead, the water vapor is compressed only by the turbine or the turbocompressor, but not associated with oil or other purity impairing medium and thus contaminated.
  • the distilled water discharged through the drain can thus - if no other regulations stand in the way - be readily returned to the groundwater. Alternatively, however, it may also be e.g. be infiltrated in the garden or in an open area, or it may be fed via the canal, if required by regulations - to a sewage treatment plant.
  • FIG. 8B shows a table for illustrating various pressures and the evaporation temperatures associated with these pressures, with the result that, in particular for water as the working medium, rather low pressures are to be selected in the evaporator.
  • DE 4431887 A1 discloses a heat pump system with a lightweight, large volume high performance centrifugal compressor.
  • a vapor exiting a second stage compressor has a saturation temperature which exceeds the ambient temperature or that of available cooling water, thereby allowing for heat removal.
  • the compressed vapor is transferred from the second stage compressor to the condenser unit, which consists of a packed bed which is internally half of a cooling water spraying device on a top, which is supplied by a water circulation pump, is provided.
  • the compressed water vapor rises in the condenser through the packed bed where it passes in direct countercurrent contact with the downwardly flowing cooling water.
  • WO 2014072239 A1 discloses a condenser with a condensation zone for condensing vapor to be condensed in a working fluid.
  • the condensation zone is formed as a volume zone and has a lateral boundary between the upper end of the condensation zone and the lower end.
  • the condenser comprises a steam introduction zone which extends along the lateral end of the condensation zone and is designed to supply condensing steam laterally across the lateral boundary into the condensation zone.
  • the actual condensation is made into a volume condensation, because the vapor to be liquefied is introduced not only head-on from one side into a condensation volume or into the condensation zone, but laterally and preferably from all sides , This not only ensures that the condensation volume provided is increased at the same external dimensions compared to a direct countercurrent condensation, but that at the same time the efficiency of the capacitor is improved because the vapor to be liquefied in the condensation zone, a current direction transverse to the flow direction - tion of the condensation liquid has.
  • the object of the present invention is to provide a safe concept for a heat pump. This object is achieved by a heat pump according to claim 1 or a method for manufacturing a heat pump according to claim 22, or a method for operating a heat pump according to claim 23.
  • the heat pump according to one aspect of the present invention includes a special convective wave cooling.
  • This heat pump has a condenser with a condenser housing, a compressor motor mounted on the condenser housing and having a rotor and a stator, the rotor having a motor shaft to which is attached a radial wheel extending into an evaporator zone and a throat space configured to receive vapor compressed by the radial wheel and to conduct it into the condenser.
  • this heat pump has a motor housing which surrounds the compressor motor and is preferably designed to maintain a pressure at least equal to the pressure in the condenser. But already enough pressure, which is greater than the pressure behind the radial wheel.
  • this pressure will be set to a pressure midway between the condenser pressure and the evaporator pressure.
  • a steam supply is provided in the motor housing to supply steam in the motor housing to a motor gap between the stator and the motor shaft.
  • the motor is designed so that a further gap extends from the motor pad between the stator and the motor shaft along the radial wheel to the Leitraum.
  • a relatively high pressure which is higher than the average pressure from the condenser and the evaporator and preferably equal to or higher than the Kondensiererdruck prevails, while in the further gap extending along the radial wheel extends the Leitraum, a lower pressure is.
  • This pressure which is equal to the average pressure from the condenser and the evaporator, exists due to the fact that the radial wheel, when compressing the vapor from the evaporator, has a high pressure area in front of the radial wheel and a low pressure or vacuum area generated behind the radial wheel.
  • the high pressure area in front of the radial wheel is still less than the high pressure in the condenser and the small pressure "behind” the radial wheel is still smaller than the high pressure at the radial wheel exit condenser pressure.
  • This pressure drop which is "coupled” to the motor gap, causes working vapor to be drawn from the motor housing via the steam supply along the motor gap and the other gap into the condenser, which is at the temperature level of the condenser working fluid or above.
  • this is of particular advantage because it avoids all condensation problems within the engine and, in particular, within the motor shaft which would corrode, etc.
  • not the coldest working fluid namely, that is present in the evaporator
  • the steam is applied to the condenser or condenser temperature that exists in the heat pump.
  • sufficient wave cooling is still achieved because of the convective nature, i. that the motor shaft is surrounded by a significant and in particular adjustable amount of steam due to the steam supply, the motor gap and the further gap.
  • this steam is relatively warm compared to the vapor in the evaporator, it is ensured that no condensation takes place along the motor shaft in the motor gap or the other gap.
  • a tempera- ture is always created here that is higher than the coldest temperature. Condensation always occurs at the coldest temperature in a volume and thus not within the motor gap and the other gap, since they are so washed by the warm steam.
  • the present invention leads to a sufficient convective wave cooling. This prevents excessive temperatures in the motor shaft and associated wear and tear. In addition, it is effectively avoided that condensation in the engine, e.g. at standstill of the heat pump, occurs. This also effectively eliminates any operational safety issues and corrosion problems that would be associated with such condensation.
  • the present invention according to the aspect of convective wave cooling, leads to a significantly reliable heat pump.
  • the heat pump in another aspect of the present invention, which relates to a heat pump with engine cooling, includes a condenser having a condenser housing, a compressor motor attached to the condenser housing and having a rotor and a stator.
  • the rotor comprises a motor shaft on which a compressor wheel is mounted for compressing working medium vapor.
  • the compressor motor has a motor wall.
  • the heat pump includes a motor housing surrounding the compressor motor and preferably configured to maintain a pressure at least equal to the pressure in the condenser and having a working fluid inlet to direct liquid working fluid from the condenser to the engine cooling system for engine cooling ,
  • the pressure in the motor housing can also be lower here, since the heat dissipation takes place from the motor housing by boiling or evaporation.
  • the heat energy at the motor wall is thus removed from the motor wall mainly by the steam, whereby this heated steam is then removed, for example into the condenser.
  • the cooling takes place in this aspect of the invention by evaporation, so that the wegabransportierende heat energy is brought away by the steam provided.
  • One advantage is that less liquid is needed for cooling and the steam can be easily routed away, e.g. B. automatically in the condenser, in which the steam then condenses again and thus gives off the heat output of the engine to the Kondensierer crampkeit.
  • the motor housing is therefore designed to form a vapor space in the operation of the heat pump, in which there is the working medium due to the bubbling or evaporation.
  • the motor housing is further configured to dissipate the steam from the steam in the motor housing by a vapor evacuation. This discharge preferably takes place in the condenser, so that the steam discharge is achieved by a gas-permeable connection between the condenser and the motor housing.
  • the motor housing is preferably further configured to maintain a maximum level of liquid working fluid in the motor housing during operation of the heat pump, and further to form a vapor space above the maximum of the level.
  • the motor housing is further configured to direct working fluid above the maximum level into the condenser.
  • the engine is thus effectively cooled on its engine wall with liquid working fluid.
  • this liquid working fluid is not the cold working fluid from the evaporator, but the warm working fluid from the condenser.
  • the use of the warm working fluid from the condenser still provides sufficient engine cooling.
  • the motor is not cooled too much and, in particular, is not cooled down so that it is the coldest part in the condenser or on the condenser housing. This would mean that e.g. At standstill of the engine but also during operation a condensation of working medium vapor would take place outside of the motor housing, which would lead to corrosion and other problems.
  • it is ensured that the engine is well cooled, but at the same time always the warmest part of the heat pump, to the extent that condensation, which always takes place at the coldest "end", just does not take place on the compressor motor.
  • the fluid working fluid in the motor housing is maintained at almost the same pressure as the condenser.
  • the working fluid that cools the engine is close to its boiling limit, since this working fluid is condensing fluid and is at a similar temperature as in the condenser. If now the engine wall is heated due to friction due to engine operation, the thermal energy passes into the liquid working fluid. Due to the fact that the liquid working fluid is near the boiling point, now in the motor housing in the liquid working fluid, which fills the motor housing to the maximum level, a bubble boiling starts.
  • This bubbling allows extremely efficient cooling due to the very strong mixing of the volume of liquid working fluid in the motor housing.
  • This cooling assisted by boiling can also be significantly assisted by a preferably provided convection element, so that at the end of a very efficient engine cooling with a relatively small volume or no standing volume of liquid working fluid, which also does not need to be controlled further, because it is self-controlling , is achieved. Efficient engine cooling is thus achieved with a low technical outlay, which in turn significantly contributes to operational reliability of the heat pump.
  • FIG. 1 shows a schematic view of a heat pump with an entangled evaporator / condenser arrangement
  • Fig. 2 is a schematic representation of a heat pump with convective wave cooling according to one aspect
  • FIG. 3 shows a schematic representation of a heat pump with convective wave cooling on the one hand and engine cooling according to a further aspect on the other hand;
  • FIG. 4 is a sectional view of a heat pump according to an embodiment with convective wave cooling on the one hand and engine cooling on the other hand with special consideration of the convective wave cooling;
  • Fig. 5 is a sectional view of a heat pump with an evaporator bottom and a condenser bottom according to thewhosbeispiei of Fig. 1;
  • Fig. 6 is a perspective view of a condenser as shown in WO 2014072239 A1;
  • FIG. 7 shows an illustration of the liquid distributor plate on the one hand and the steam inlet zone with steam inlet gap on the other hand from WO 2014072239 A1;
  • Fig. 8a is a schematic representation of a known heat pump for evaporating water
  • Fig. 8b is a table illustrating pressures and vaporization temperatures of water as the working liquid
  • FIG. 10 shows a heat pump according to an exemplary embodiment with a convective wave cooling according to the first aspect and an engine cooling according to the second aspect, with special emphasis placed on the engine cooling; and
  • FIG. 1 1 shows a cross section through a motor shaft with a bearing section according to embodiments of the present invention.
  • FIG. 1 shows a heat pump 100 with an evaporator for evaporating working fluid in an evaporator chamber 102.
  • the heat pump further comprises a condenser for liquefying evaporated working fluid in a condenser space 104, which is delimited by a condenser bottom 106.
  • the evaporator space 102 is at least partially surrounded by the condenser space 104.
  • the evaporator chamber 102 is separated from the condenser space 104 by the condenser bottom 106.
  • the condenser bottom is connected to an evaporator bottom 108 to define the evaporator space 102.
  • a compressor 1 10 is provided above the evaporator chamber 102 or elsewhere, which is not detailed in Fig. 1, but which is in principle designed to compress vaporized working fluid and as compressed steam 1 12 in the condenser space 104 to conduct.
  • the condenser space is also limited to the outside by a capacitor wall 1 14.
  • the capacitor wall 1 14 is also attached to the evaporator bottom 108 as the capacitor bottom 106.
  • the dimensioning of the capacitor base 106 in the area forming the interface to the evaporator base 108 is such that the capacitor base in the embodiment shown in FIG. 1 is completely surrounded by the capacitor space wall 14. This means that the condenser space, as shown in FIG.
  • the dimensioning can - -
  • the evaporator bottom is carried out in accordance with preferred embodiments of the present invention, that it includes all liquid inlets and outlets and thus no liquid supply and discharge lines from the side or from the top are needed.
  • the operating direction of the heat pump is as shown in FIG. This means that the evaporator bottom defines in operation the lower portion of the heat pump, but apart from connecting lines with other heat pumps or to corresponding pump units.
  • the steam generated in the evaporator chamber rises and is deflected by the motor and is fed from top to bottom in the condenser space, and that the condenser liquid is guided from bottom to top, and then fed from above into the condenser space and then flows in the condenser space from top to bottom, such as by individual droplets or by small liquid streams, to react with the preferably cross-fed compressed steam for purposes of condensation.
  • the interlocking arrangement is thus optimal in that each functional space there is given the large volume, where this functional space also requires the large volume.
  • the evaporator compartment has the large volume below while the condenser compartment has the large volume at the top.
  • the corresponding small volume which remains for the respective functional space where the other functional space has the large volume, contributes to an increase in efficiency compared to a heat pump in which the two functional elements are arranged one above the other, as in WO 2014072239 A1 is the case.
  • the compressor is arranged at the top of the condenser space such that the compressed steam is deflected by the compressor on the one hand and at the same time fed into an edge gap of the condenser space.
  • a condensation is achieved with a particularly high efficiency, because a cross-flow direction of the steam is achieved to a downflowing condensation liquid.
  • This cross-flow condensation is particularly effective in the upper area where the evaporator space is large, and does not require a particularly large area in the lower area where the condenser space is small in favor of the evaporator space, yet still allows condensation of vapor particles penetrated up to this area allow.
  • An evaporator bottom which is connected to the condenser bottom, is preferably designed so that it receives the condenser inlet and outlet and the evaporator inlet and outlet in which, in addition to certain bushings for sensors in the evaporator or in the Capacitor can be present.
  • This ensures that no feedthroughs of lines for the condenser inlet and outlet are required by the near-vacuum evaporator. This will make the entire heat pump less prone to failure because any passage through the evaporator would be a potential leak.
  • the condenser bottom is provided with a respective recess at the locations where the condenser inlets and outlets are located. - - hen, going to the fact that in the evaporator space, which is defined by the condenser bottom, no capacitor feeds / discharges run.
  • the condenser space is limited by a condenser wall, which is also attachable to the evaporator bottom.
  • the evaporator bottom thus has an interface for both the condenser wall and the condenser bottom and additionally has all liquid feeds for both the evaporator and the condenser.
  • the evaporator bottom is formed to have connection nozzles for the individual feeders, which have a cross section that differs from a cross section of the opening on the other side of the evaporator bottom.
  • the shape of the individual connecting pieces is then designed so that the shape or cross-sectional shape changes over the length of the connecting piece, but the pipe diameter, which plays a role for the flow velocity, is almost the same in a tolerance of ⁇ 10%. This prevents water flowing through the connection pipe from cavitating. This ensures due to the good obtained by the formation of the connecting pieces flow conditions that the corresponding pipes / lines can be made as short as possible, which in turn contributes to a compact design of the entire heat pump.
  • the evaporator bottom of the condenser feed is almost divided in the form of a "glasses" in a two- or multi-part flow.
  • a further smaller dimensioned feed in the evaporator bottom for condenser water can also be provided in order to connect a hose which supplies cooling fluid to the compressor motor of the heat pump, wherein the cold, the liquid supplied to the evaporator is used for cooling, but the warmer, the Condenser supplied liquid, which is still cool enough in typical operating situations to cool the heat pump's motor.
  • the evaporator bottom is characterized by the fact that it has a combination functionality. On the one hand, it ensures that no capacitor feed lines have to be passed through the evaporator, which is under very low pressure. On the other hand, it represents an interface to the outside, which preferably has a circular shape, as in a circular shape as much evaporator surface remains. All inlets and outlets pass through one evaporator base and from there into either the evaporator space or the condenser space.
  • a production of the evaporator bottom of plastic injection molding is particularly advantageous because the advantageous relatively complicated shapes of the inlet / outlet nozzles in plastic injection molding can be performed easily and inexpensively.
  • Fig. 2 shows a heat pump according to an embodiment in connection with the first aspect, the convective wave cooling.
  • the heat pump of FIG. 2 includes a condenser having a condenser housing 14 that includes a condenser space 104.
  • the compressor motor is mounted, which is schematically represented by the stator 308 in FIG. 4.
  • This compressor motor is mounted on the condenser housing 1 14 in a manner not shown in FIG. 2 and includes the stator and a rotor 307, the rotor 307 having a motor shaft 306 to which a radial impeller 304 is mounted extending into an evaporator zone extends, which is not shown in Fig. 2.
  • the heat pump comprises a guide space 302, which is designed to receive vapor condensed by the radial wheel and to guide it into the condenser, as shown diagrammatically in FIG.
  • the engine includes a motor housing 300 surrounding the compressor motor and preferably configured to maintain a pressure at least equal to the pressure in the condenser.
  • the motor housing is configured to maintain a pressure higher than a mean pressure from the evaporator and the condenser, or higher than the pressure in the other gap 313 between the radial wheel and the guide space (302), or greater than or equal to the pressure in the condenser.
  • Motor housing is thus designed so that a pressure drop from the motor housing along the Motorwe! Le takes place in the direction of the Leitraums, is drawn through the working steam through the motor gap and the other gap on the motor shaft to cool the shaft.
  • a steam supply 310 is formed to supply steam in the motor housing 300 to a motor gap 31 1 provided between the stator 308 and the shaft 306.
  • the motor comprises a further gap 313, which extends from the motor gap 31 1 along the radial wheel to the guide space 302.
  • This vapor flow takes working steam from the motor housing past the motor shaft into the condenser.
  • This steam flow ensures the convective wave cooling of the motor shaft through the motor gap 31 1 and the further gap 313, which adjoins the motor gap 31 1.
  • the radial wheel so sucks steam down, past the shaft of the engine.
  • This steam is drawn into the engine nip via the steam supply, which is typically implemented as a special bore design.
  • FIG. 3 shows a further schematic embodiment of the convective wave cooling according to the first aspect of the present invention, which is preferably combined there with the motor cooling according to the second aspect of the present invention.
  • convective wave cooling on the one hand and engine cooling on the other hand are also used separately from each other.
  • engine cooling without a special separate convective shaft cooling system already leads to significantly increased operational safety.
  • convective motor shaft cooling also results without the additional engine cooling - - Increased reliability of the heat pump.
  • the two aspects can, as it is shown in Fig. 3, are particularly low interconnected to implement with a particularly advantageous construction of the motor housing and the compressor motor, both the convective shaft cooling and the engine cooling, which additionally in yet another preferred embodiment can be complemented in each case or together by a special ball bearing cooling.
  • FIG. 3 shows an exemplary embodiment with combined use of convective wave cooling and engine cooling, wherein in the exemplary embodiment shown in FIG. 3 the evaporator zone is shown at 102.
  • the evaporator zone is separated from the condenser zone, ie from the condenser region 104 by the condenser base 106.
  • Working vapor shown schematically at 314, is drawn in through the rotating schematically and sectioned radial impeller 304 and "pressed" into the route 302.
  • the route 302 is formed such that The first "stage” of vapor compression already takes place by the rotation of the radial wheel and the “suction" of the vapor by the radial wheel, but then when the radial impinges the steam in fed the entrance of the route, so where the radial wheel considered “stops” up, the already precompressed steam to a certain extent on a vapor congestion, which is due to the rejuvenation of the route and also due to the curvature of the route exists. This leads to a further vapor compression, so that finally the compressed and thus heated steam 1 12 flows into the condenser.
  • FIG. 3 further shows the steam supply openings 320, which are embodied in a schematically illustrated motor wall 309 in FIG. 3.
  • this motor wall 309 has bores for the steam supply openings 320 in the upper region, but these bores can be made at any point where steam can penetrate into the motor gap 31 1 and thus into the further motor gap 313 ,
  • the resulting vapor flow 310 results in the desired effect of convective wave cooling.
  • the embodiment shown in FIG. 3 further comprises, for implementing the engine cooling, a working medium inlet 330 which is designed to lead liquid working medium from the condenser to the engine cooling system for engine cooling.
  • a working medium inlet 330 which is designed to lead liquid working medium from the condenser to the engine cooling system for engine cooling.
  • the mo- - - Torgephaseuse designed to hold in the operation of the heat pump a maximum liquid level 322 of liquid working fluid.
  • the motor housing 300 is also configured to form a vapor space 323 above the maximum level.
  • the motor housing has provisions to direct liquid working fluid above the maximum level into the condenser 104.
  • This embodiment is in the embodiment shown in Fig. 3 by a z. Formed flat channel-shaped overflow 324, which forms the vapor discharge and is located somewhere in the upper Kondensierwand and has a length that defines the maximum level 322.
  • the liquid working fluid passes through the overflow 324 into the condenser volume.
  • the overflow also in the passive arrangement shown in FIG. 3, which, for example, may alternatively be a tube with a corresponding length, balances the pressure between the motor housing and in particular the steam chamber 323 of the motor housing and the condenser interior 104 ago.
  • the pressure in the steam chamber 323 of the motor housing is always almost equal to or at most due to a pressure loss along the overflow slightly higher than the pressure in the condenser.
  • the boiling point of liquid 328 in the motor housing will be similar to the boiling point in the condenser housing.
  • heating of the motor wall 309 due to power loss generated in the motor causes bubble nucleate to take place in the fluid volume 328, which will be explained later.
  • Fig. 3 also shows various seals in schematic form at reference numeral 326 and at similar locations between the motor housing and the condenser housing on the one hand or between the motor wall 309 and the condenser housing 1 14 on the other. These seals are intended to symbolize that here a fluid and pressure-tight connection should be.
  • the motor housing defines a separate space, which, however, represents a nearly equal pressure area like the condenser. This supports due to a heating of the engine and the energy emitted therefrom on the motor wall 309 a bubble boiling in the liquid volume 328, which in turn has a particularly efficient distribution of the working fluid in the volume 328 and thus a particularly good cooling with a small volume of cooling liquid result. Furthermore, it is ensured that the working medium is cooled, which is at the most favorable temperature, namely the warmest temperature in the heat pump. This will ensure that all - - densationsprob! eme, which always occur on cold surfaces, both for the motor wall and for the motor shaft and the areas in the motor gap 31 1 and the other gap 313 are excluded.
  • the working medium steam 310 used for the convective wave cooling is steam that is otherwise in the vapor space 323 of the motor housing. Like the liquid 328, this vapor also has the optimum (warm) temperature. Further, it is ensured by the overflow 324 that the pressure in the region 323 can not rise above the condenser pressure due to the bubble boiling caused by the engine cooling or engine wall 309. Furthermore, the heat dissipation due to the engine cooling is dissipated by the steam discharge. Thus the convective wave cooling will always work the same. If the pressure were to increase too much, too much working medium vapor could be forced through the motor gap 31 1 and the further gap 313.
  • the holes 320 for the steam supply will typically be formed in an array, which may be arranged regularly or irregularly.
  • the individual holes are not larger than 5 mm in diameter and may be about a minimum size of 1 mm.
  • FIG. 6 shows a condenser wherein the condenser in FIG. 6 has a steam introduction zone 102 which extends completely around the condensation zone 100.
  • FIG. 6 shows a part of a condenser which has a condenser bottom 200.
  • a condenser housing portion 202 is arranged, which is drawn transparent due to the representation in Fig. 6, but which does not necessarily have to be transparent in nature, but may be formed, for example, plastic, die-cast aluminum or something similar.
  • the side housing part 202 rests on a sealing rubber 201 in order to achieve a good seal with the bottom 200.
  • the condenser comprises a liquid outlet 203 and a liquid inlet 204 as well as a centrally arranged in the condenser steam supply 205, which tapers from bottom to top in Fig. 6.
  • FIG. 6 represents the actually desired erection direction of a heat pump and a condenser of this heat pump, wherein in this installation direction in FIG. 6 the evaporator of a heat pump is arranged below the condenser.
  • the condensation zone 100 is bounded outwardly by a basket-like boundary object 207, which is drawn as well as the outer housing part 202 transparent and is normally formed like a basket. - -
  • a grid 209 is arranged, which is designed to carry fillers, which are not shown in Fig. 6, to wear.
  • the basket 207 extends only down to a certain point.
  • the basket 207 is provided with vapor permeability to hold packing, such as so-called Pall rings.
  • These fillers are introduced into the condensation zone, but only within the basket 207, but not in the steam introduction zone 102. However, the fillers are filled so high outside the basket 207 that the height of the packing either up to the lower limit of the basket 207 or slightly beyond.
  • the liquefier of FIG. 6 comprises a working fluid feeder formed by a liquid transport region 210 and a liquid distribution element 212, in particular through the working fluid supply 204, which, as shown in FIG. 6, is wound around the vapor supply in the form of an ascending coil is, which is preferably formed as a perforated plate.
  • the working fluid feeder is thus designed to supply the working fluid into the condensation zone.
  • a steam feeder which, as shown in Fig. 6, is preferably composed of the funnel-shaped tapered feeder section 205 and the upper steam guide section 213.
  • a wheel of a radial compressor is used and the radial compression causes the feed 205 to suck vapor from the bottom upwards and then due to the radial compression by the radial wheel to some extent be deflected 90 degrees outwards, ie from a flow from bottom to top to a flow from the center outwards in FIG. 6 with respect to the element 213.
  • Fig. 6 shows a bottom view of the "ceiling area" of the condenser of Fig. 6.
  • the perforated plate 212 of Figs - - Shown below schematically, which acts as a liquid distribution element.
  • the steam inlet gap 215 is shown schematically, and it follows from Fig. 7, that the steam inlet gap is formed only annular, such that in the condensation zone directly from above or directly from below no steam to be condensed is fed, but only laterally. Through the holes of the distributor plate 212 thus only liquid flows, but no steam. The vapor is first "sucked” laterally into the condensation zone due to the liquid which has passed through the perforated plate 212.
  • the liquid distribution plate may be made of metal, plastic or a similar material and can be embodied with different hole patterns. As shown in Fig. 6, it is preferable to provide a lateral boundary for liquid flowing out of the element 210, this lateral boundary being designated 217.
  • FIG. 5 shows a sectional view of a complete heat pump, which comprises both the evaporator bottom 108 and the condenser bottom 106.
  • the condenser bottom 106 has a tapered cross section from an inlet for the working fluid to be evaporated to a suction port 1 15, which is coupled to the compressor or engine 1 10, where
  • the preferably used radial wheel of the engine sucks the steam generated in the evaporator chamber 102.
  • Fig. 5 shows a cross section through the entire heat pump.
  • a droplet separator 404 is arranged within the condenser bottom.
  • This mist eliminator includes individual vanes 405. These vanes are placed in corresponding grooves 406 shown in FIG. 5 for the demister to remain in place. These grooves are arranged in the condenser bottom in a region directed towards the evaporator bottom in the inside of the evaporator bottom.
  • the condenser bottom further has various guiding features, which may be formed as rods or tongues to hold hoses, which are provided for a condenser water, for example, which are thus plugged onto corresponding sections and couple the feed points of the condenser water supply.
  • This condenser water feed 402 may vary depending on the implementation - - be formed as shown in Figs. 6 and 7 at reference numerals 102, 207 to 250 is shown. Furthermore, the condenser preferably has a condenser liquid distribution arrangement which has two or more feed points. A first feed point is therefore connected to a first portion of a capacitor feed. A second feed point is connected to a second portion of the condenser inlet. Should there be more feed points for the condenser liquid distribution device, the condenser feed will be divided into further sections.
  • the upper portion of the heat pump of FIG. 5 may be the same as the upper portion of FIG. 6, in that the condenser water supply is via the perforated plate of FIGS. 6 and 7, so that downwardly flowing condenser water 408 in which the working steam 1 12 is preferably introduced laterally, so that the cross-flow condensation, which allows a particularly high efficiency, can be obtained.
  • the condensation zone may be provided with a merely optional filling, in which the edge 207, which is also designated 409, remains free of packing or the like, in that the working vapor 1 12 not only above, but also below can still penetrate laterally into the condensation zone.
  • the imaginary boundary line 410 is intended to illustrate that in FIG. 5. In the exemplary embodiment shown in FIG. 5, however, the entire region of the capacitor is formed with its own capacitor bottom 200, which is arranged above an evaporator bottom.
  • FIG. 4 shows a preferred exemplary embodiment of a heat pump and in particular of a heat pump section, which shows the "upper" region of the heat pump, as shown in FIG. 5, for example.
  • the motor M 1 10 of FIG. 5 corresponds to the area surrounded by a motor wall 309, which in the cross-sectional view in FIG. 4 in the fluid area 328 is preferably formed externally with cooling fins to increase the surface area of the motor wall 309.
  • the area of the motor housing 300 in Fig. 4 corresponds to the corresponding area 300 in Fig. 5.
  • the radial wheel 304 is also shown in a more detailed cross-section.
  • the radial gear 304 is attached to the motor shaft 306 in a cross-sectional bifurcated mounting region.
  • the motor shaft 306 has a rotor 307 facing the stator 308.
  • the rotor 307 includes permanent magnets shown schematically in FIG. 4.
  • the steam path 310 is set forth by the engine gap 31 1.
  • the motor gap 31 1 extends between the rotor and the stator and terminates in the - - Another gap 313, which extends along the cross-sectional bifurcated mounting portion of the shaft 306 to the Leitraum 302, as shown at 346 also.
  • an emergency bearing 344 is shown in Fig. 4, which does not support the shaft during normal operation. Instead, the shaft is supported by the bearing section shown at 343.
  • the emergency bearing 344 is only present to store in the event of damage to the shaft and thus the radial wheel so that the rapidly rotating radial wheel in the event of damage can do no major damage in the heat pump.
  • 4 also shows various fastening elements, such as screws, nuts, etc., and various seals in the form of various O-rings.
  • FIG. 4 shows an additional convection element 342, which will be discussed later with reference to FIG. 10.
  • FIG. 4 also shows a spray guard 360 in the steam chamber above the maximum volume in the engine housing, which is normally filled with liquid working fluid.
  • This splash guard is designed to intercept spewed liquid drops in the bubble boiling in the vapor space.
  • the vapor path 310 is configured to benefit from the splash guard 360, i. that due to the flow in the engine gap and the other gap only working agent vapor, but not liquid drops are sucked in due to the settlement in the motor housing.
  • the convective-wave cooling heat pump preferably has a steam supply formed so that a flow of steam through the motor gap and the wider gap does not pass through a bearing portion formed to support the motor shaft with respect to the stator.
  • a bearing portion formed to support the motor shaft with respect to the stator.
  • the bearing portion 343, which in the present case comprises two ball bearings is sealed from the motor gap, namely z.
  • the working steam can only enter through the steam feed into an area within the motor wall 309, as shown by the path 310 in FIG. 4, and run down therefrom in a free space and pass along the rotor 307 through the motor gap 31 1 in the other gap 313.
  • the engine housing is mounted in the operating position of the heat pump on top of the condenser housing 14 such that the stator is above the radial wheel and the vapor flow 310 through the engine gap and the other gap runs from top to bottom.
  • the heat pump includes the bearing portion 343, which is configured to support the motor shaft with respect to the stator. Further, the bearing portion is arranged so that between the bearing portion and the radial wheel 304, the rotor 307 and the stator
  • the engine housing further includes the working fluid inlet 330 to direct liquid working fluid from the condenser to the engine cooling to a wall of the compressor motor.
  • FIG. 10 shows a specific implementation of this working fluid inlet 362, which corresponds to the inlet 330 of FIG. 3.
  • This working fluid inlet 362 extends into a closed volume 364, which is a ball bearing cooling. From the ball bearing cooling emerges a derivative, which includes a tube 366, which does not lead the working fluid on top of the volume of the working fluid 328, as shown in Fig. 3, but that the working means down to the wall of the motor, so that Element 309 leads.
  • the tube 366 is configured to be disposed within the convection element 342 disposed around the motor wall 309 at a certain distance such that within the convection element 342 and outside of the convection element 342 within the motor housing 300, a volume liquid working fluid exists.
  • a convection zone 367 arises within the volume of working fluid 328.
  • the boiling bubbles are torn from bottom to top by the nucleate boiling. This leads to a continuous "stirring", meaning that hot working fluids _. from bottom to top.
  • the energy due to nucleate boiling then passes into the vapor bubble, which then lands in the vapor volume 323 above the liquid volume 328.
  • the resulting pressure is brought directly through the overflow 324, the overflow continuation 340 and the drain 342 in the condenser. This results in a constant heat removal from the engine to the condenser, which mainly takes place due to the discharge of steam and not due to the discharge of heated liquid.
  • the heat which is actually the waste heat of the engine, preferably passes through the steam discharge exactly where it should go, namely into the condenser water to be heated.
  • the entire engine heat is kept in the system, which is particularly favorable for heating applications of the heat pump.
  • heat removal from the motor to the condenser is beneficial because the condenser typically provides efficient heat removal, e.g. is coupled in the form of a heat exchanger or a direct heat dissipation in the area to be heated. So there is no own engine waste heat device to be created, but the heat pump from the heat pump anyway existing heat dissipation from the condenser to the outside is to some extent "co-used" by the engine cooling.
  • the motor housing is further configured to maintain the maximum level of liquid working fluid in an operation of the heat pump and to create above the level of liquid working fluid the steam Räum 323.
  • the steam supply is further configured to communicate with the vapor space so that the vapor in the vapor space is directed to the convective wave cooling through the motor gap and the other gap in FIG.
  • drain 324 is both overflow and steam.
  • these functionalities may be implemented by alternative embodiments of the overflow on the one hand and a vapor space on the other hand also using different elements.
  • the heat pump comprises a special ball-bearing cooling, which is formed, in particular, in that the sealed volume 364 with liquid working medium is formed around the bearing section 343.
  • the inlet 362 enters this volume and the volume has a drain 366 from the ball bearing cooling into the working fluid volume for engine cooling.
  • a separate ball bearing cooling is provided, but which runs around the outside of the ball bearing and not within the camp, so that although efficiently cooled by this ball bearing cooling, but not the lubricity of the bearing is affected. Further, as shown in FIG.
  • the working fluid inlet 362 includes, in particular, the conduit portion 366 which extends almost to the bottom of the motor housing 300 and the bottom of the fluid working fluid 328 in the motor housing or at least to a portion below the maximum Level extends, in particular to lead liquid working fluid from the Kugeliagerkühlung out and supply the liquid Ar beitsstoff the engine wall.
  • FIGS. 10 and 4 further show the convection element spaced from the wall of the compressor motor 309 in the liquid working fluid, which in a lower region is more permeable to the liquid working fluid than in an upper region.
  • the upper portion is not permeable and the lower portion is relatively highly permeable, and the convection element is designed in the form of a "crown" which is placed inversely in the volume of liquid
  • alternative convection elements 342 may be used that are less permeable in any way at the top than at the bottom, for example, a convection element could be taken having holes at the bottom that are in Shape or number have a larger passage cross-section than holes in the upper region.Alternative elements for generating the convection flow 367, as shown in Fig. 10, are also usable.
  • the emergency bearing 344 is provided, which is designed to secure the motor shaft 306 between the rotor 370 and the radial wheel 304.
  • the further gap 313 extends through a bearing gap of the emergency bearing or, preferably, through bores deliberately introduced into the emergency bearing.
  • the emergency warehouse is equipped with a large number of - see, so that the emergency camp itself is the lowest possible flow resistance for the steam flow 10 for purposes of convective wave cooling.
  • FIG. 1 1 shows a schematic cross section through a motor shaft 306, as it can be used for preferred embodiments.
  • the motor shaft 306 comprises a hatched core, as shown in Fig. 1 1, which is mounted in its upper portion, which represents the bearing portion 343, preferably two ball bearings 398 and 399.
  • the rotor is formed with permanent magnets 307.
  • These permanent magnets are mounted on the motor shaft 306 and are held up and down by stabilizing bandages 397, which are preferably made of carbon.
  • the permanent magnets are held by a stabilizing sleeve 396, which is also preferably formed as a carbon sleeve. This backup or stabilizing sleeve causes the permanent magnets to remain secure on the shaft 306 and not be able to disengage from the shaft due to the high centrifugal forces due to the high speed of the shaft.
  • the shaft is formed of aluminum and has a cross-sectional fork-shaped mounting portion 395, which is a support for the radial wheel 304, when the radial wheel 304 and the motor shaft are not formed in one piece, but with two elements. If the radial gear 304 is integrally formed with the motor shaft 306, the wheel support portion 395 does not exist, but then the radial gear 304 directly adjoins the motor shaft. In the region of the wheel holder 395 is also, as can be seen from Fig. 10, the emergency bearing 344, which is preferably also made of metal and in particular aluminum.
  • the motor housing 300 which is also shown in Fig. 3, is designed to obtain a pressure which is at most 20% greater than the pressure in the condenser housing in an operation of the heat pump.
  • the motor housing 300 may be configured to obtain a pressure that is low enough that upon heating of the motor wall 309 by the operation of the motor, a bias boiling occurs in the liquid working fluid 328 and in the motor housing 300.
  • the bearing section 343 is arranged above the maximum liquid level, so that even in the case of a leakage of the motor wall 309 no liquid - -
  • the overflow 324 is formed to have a first tube portion protruding into the motor housing, further having a second conduit portion 340 extending from a curve portion 317 to a drain 342 Further, which is disposed outside a region in which the guide space 302 introduces compressed working steam into the condenser through the compressor wheel 304.
  • Fig. 9 also shows a schematic diagram of the heat pump for engine cooling.
  • the working fluid outlet 324 is designed as an alternative to FIG. 4 or FIG.
  • the process does not necessarily have to be a passive process, but may also be an active process, e.g. is controlled by a pump or other element and depending on a level detection of the level 322 sucks some working fluid from the motor housing 300.
  • a reclosable opening could be at the bottom of the motor housing 300 to drain a controlled amount of work fluid from the motor housing into the condenser by briefly opening the reclosable opening.
  • FIG. 9 further shows the area to be heated or a heat exchanger 391, from which a condenser inlet 204 runs into the condenser, and from which a condenser outlet 203 emerges.
  • a pump 392 is provided to drive the circuit of condenser inlet 204 and condenser outlet 203.
  • This pump 392 preferably has a branch to the inlet 362, as shown schematically. This means that no separate pump is required, but the already existing pump for the condensate discharge also drives a small part of the condenser outlet into the feed line 362 and thus into the liquid volume 328.
  • FIG. 9 shows a general illustration of the condenser 1 14, the compressor motor with motor wall 309 and the motor housing 300, as has also been described with reference to FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une pompe à chaleur comportant un condenseur doté d'un carter de condenseur ; un moteur de compresseur qui est monté sur le carter de condenseur et comprend un rotor (307) et un stator (308), le rotor comprenant un arbre de moteur (306) sur lequel est montée une roue radiale (304) qui s'étend dans une zone d'évaporateur ; un espace de guidage (302) qui est conçu pour recevoir de la vapeur comprimée par la roue radiale et pour la guider dans le condenseur ; un carter de moteur (300) qui entoure le moteur de compresseur ; et une alimentation en vapeur (320) pour l'acheminement de vapeur dans le carter de moteur jusqu'à une fente de moteur (311) entre le stator et le rotor, le moteur étant réalisé de telle sorte qu'une fente (313) supplémentaire s'étend à partir de la fente de moteur le long de la roue radiale jusqu'à l'espace de guidage.
PCT/EP2017/054624 2016-03-02 2017-02-28 Pompe à chaleur à refroidissement d'arbre par convection Ceased WO2017148932A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17709020.6A EP3423762B1 (fr) 2016-03-02 2017-02-28 Pompe à chaleur à refroidissement d'arbre par convection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016203407.3 2016-03-02
DE102016203407.3A DE102016203407A1 (de) 2016-03-02 2016-03-02 Wärmepumpe mit konvektiver Wellenkühlung

Publications (1)

Publication Number Publication Date
WO2017148932A1 true WO2017148932A1 (fr) 2017-09-08

Family

ID=58231591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/054624 Ceased WO2017148932A1 (fr) 2016-03-02 2017-02-28 Pompe à chaleur à refroidissement d'arbre par convection

Country Status (3)

Country Link
EP (1) EP3423762B1 (fr)
DE (1) DE102016203407A1 (fr)
WO (1) WO2017148932A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3106943A1 (fr) 2020-02-05 2021-08-06 Leviathan Dynamics Dispositif de refroidissement de rotor et machine tournante le comportant
US11754325B2 (en) 2017-08-29 2023-09-12 Efficient Energy Gmbh Heat pump having a cooling device for cooling a guide space or a suction mouth

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019133241A1 (de) * 2019-12-05 2021-06-10 Efficient Energy Gmbh Besondere massnahmen zur temperaturführung eines rotors eines elektromotors
DE102019135317A1 (de) * 2019-12-19 2021-06-24 Efficient Energy Gmbh Wärmepumpe mit effizientem diffusor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550381A1 (fr) * 1992-01-02 1993-07-07 Carrier Corporation Soupape de contre-pression
DE4431887A1 (de) 1993-09-08 1995-03-09 Ide Technologies Ltd Wärmepumpenanlage
US20030094007A1 (en) * 2001-11-20 2003-05-22 Lg Electronics Inc. Cooling system and cooling method
US20090044548A1 (en) * 2007-02-21 2009-02-19 Honeywell International Inc. Two-stage vapor cycle compressor
EP2016349B1 (fr) 2006-04-04 2011-05-04 Efficient Energy GmbH Pompe a chaleur
WO2014072239A1 (fr) 2012-11-06 2014-05-15 Efficient Energy Gmbh Condenseur, procédé pour la condensation et pompe à chaleur
WO2014200476A1 (fr) * 2013-06-12 2014-12-18 Danfoss Turbocor Compressors B.V. Compresseur doté d'un passage de refroidissement de rotor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019030A5 (nl) * 2009-08-03 2012-01-10 Atlas Copco Airpower Nv Turbocompressorsysteem.
US8931304B2 (en) * 2010-07-20 2015-01-13 Hamilton Sundstrand Corporation Centrifugal compressor cooling path arrangement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550381A1 (fr) * 1992-01-02 1993-07-07 Carrier Corporation Soupape de contre-pression
DE4431887A1 (de) 1993-09-08 1995-03-09 Ide Technologies Ltd Wärmepumpenanlage
US20030094007A1 (en) * 2001-11-20 2003-05-22 Lg Electronics Inc. Cooling system and cooling method
EP2016349B1 (fr) 2006-04-04 2011-05-04 Efficient Energy GmbH Pompe a chaleur
US20090044548A1 (en) * 2007-02-21 2009-02-19 Honeywell International Inc. Two-stage vapor cycle compressor
WO2014072239A1 (fr) 2012-11-06 2014-05-15 Efficient Energy Gmbh Condenseur, procédé pour la condensation et pompe à chaleur
WO2014200476A1 (fr) * 2013-06-12 2014-12-18 Danfoss Turbocor Compressors B.V. Compresseur doté d'un passage de refroidissement de rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754325B2 (en) 2017-08-29 2023-09-12 Efficient Energy Gmbh Heat pump having a cooling device for cooling a guide space or a suction mouth
FR3106943A1 (fr) 2020-02-05 2021-08-06 Leviathan Dynamics Dispositif de refroidissement de rotor et machine tournante le comportant

Also Published As

Publication number Publication date
DE102016203407A1 (de) 2017-09-07
EP3423762B1 (fr) 2020-01-29
EP3423762A1 (fr) 2019-01-09

Similar Documents

Publication Publication Date Title
EP2341300B1 (fr) Pompe à chaleur
DE102016203414B4 (de) Wärmepumpe mit einem Fremdgassammelraum, Verfahren zum Betreiben einer Wärmepumpe und Verfahren zum Herstellen einer Wärmepumpe
DE102012220199A1 (de) Verflüssiger, Verfahren zum Verflüssigen und Wärmepumpe
EP2909452B1 (fr) Appareil pour la production d'énergie électrique a l'aide d'un cycle organique de rankine
EP3423762B1 (fr) Pompe à chaleur à refroidissement d'arbre par convection
WO2015197467A1 (fr) Pompe à canal latéral
DE102016204158A1 (de) Wärmepumpenanlage mit zwei Stufen, Verfahren zum Betreiben einer Wärmepumpenanlage und Verfahren zum Herstellen einer Wärmepumpenanlage
EP3423763B1 (fr) Pompe à chaleur avec refroidissement de moteur
EP3676544B1 (fr) Pompe à chaleur comprenant un dispositif de refroidissement pour refroidir une chambre de conduction et une bouche d'aspiration
EP3423766B1 (fr) Pompe à chaleur dotée d'un piège à gaz, procédé de fonctionnement d'une pompe à chaleur dotée d'un piège à gaz et procédé de fabrication d'une pompe à chaleur dotée d'un piège à gaz
WO2017148930A1 (fr) Moteur électrique, pompe à chaleur dotée dudit moteur électrique, procédé de production du moteur électrique et procédé pour faire fonctionner ledit moteur électrique
DE102017217730B4 (de) Kondensierer mit einer füllung und wärmepumpe
DE102015209848B4 (de) Wärmepumpe mit verschränkter Verdampfer/Kondensator-Anordnung
DE2530635A1 (de) Vorrichtung zum erschlie"en geothermischer energie
DE102016213295A1 (de) Wärmepumpe mit einer Füllstands-regulierenden Drossel und Verfahren zum Herstellen einer Wärmepumpe
EP3948105A1 (fr) Agent réfrigérant à base d'eau pour une machine de travail thermique et machine de travail thermique pourvue d'un tel agent réfrigérant
EP2343489B1 (fr) Pompe à chaleur
DE102012220186A1 (de) Tropfenabscheider und Verdampfer
DE102016204152A1 (de) Wärmepumpenanlage mit Wärmetauschern, Verfahren zum Betreiben einer Wärmepumpenanlage und Verfahren zum Herstellen einer Wärmepumpenanlage

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2017709020

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017709020

Country of ref document: EP

Effective date: 20181002

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17709020

Country of ref document: EP

Kind code of ref document: A1