WO2018210596A1 - Dispositif échangeur de chaleur et procédé d'échange de chaleur entre l'air et un fluide guidé dans un échangeur de chaleur - Google Patents

Dispositif échangeur de chaleur et procédé d'échange de chaleur entre l'air et un fluide guidé dans un échangeur de chaleur Download PDF

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Publication number
WO2018210596A1
WO2018210596A1 PCT/EP2018/061661 EP2018061661W WO2018210596A1 WO 2018210596 A1 WO2018210596 A1 WO 2018210596A1 EP 2018061661 W EP2018061661 W EP 2018061661W WO 2018210596 A1 WO2018210596 A1 WO 2018210596A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
air
housing
flow
air guide
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/EP2018/061661
Other languages
German (de)
English (en)
Inventor
Simon GEISERT
Viktor TRENKENSCHUH
Andreas ZÜRNER
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.)
Guentner GmbH and Co KG
Original Assignee
Guentner GmbH and Co KG
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 Guentner GmbH and Co KG filed Critical Guentner GmbH and Co KG
Priority to EP18730978.6A priority Critical patent/EP3625507B1/fr
Priority to RU2019137088A priority patent/RU2752210C2/ru
Priority to PL18730978.6T priority patent/PL3625507T3/pl
Publication of WO2018210596A1 publication Critical patent/WO2018210596A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Definitions

  • the invention relates to a heat exchanger device for exchanging heat between air and a fluid guided in at least one heat exchanger according to the preamble of claim 1 and to a method for exchanging heat between air and a fluid carried in a heat exchanger according to the preamble of claim 20.
  • Such heat exchanger devices can be used, for example, as evaporators in refrigerating machines or cooling systems in which air drawn in from the surroundings is cooled, or in heat pumps.
  • heat exchanger devices in air cooler for cooling the air in large-volume rooms, such. B. walk-in storage or cold rooms are used.
  • the air coolers used for this purpose are part of the equipment of the storage or cooling room and installed in stationary.
  • the air cooler contains a heat exchanger, for example in the form of a heat exchanger, on or through which the air to be cooled is passed or passed through, wherein the heat exchanger extracts heat from the air and cools it.
  • the heat exchanger can be a heat exchanger which has a pipe or channel system through which a coolant or refrigerant flows.
  • the heat exchanger can also be an evaporator which has a pipe or channel system through which a two-phase refrigerant flows.
  • the piping or channel system of the evaporator is coupled to a compressor and a condenser or a recooler, which is arranged regularly outside the space to be cooled (for example, on the roof of the building in which the storage or refrigerator is located).
  • the condenser or recooler is connected via pipelines to the evaporator of the air cooler to direct the refrigerant in the liquid state and at low pressure through the evaporator.
  • the vaporized refrigerant is returned via the pipe into the compressor and the condenser or the recooler to be liquefied there by compression or cooled.
  • a chiller designed as a two-flow evaporator with a housing which has a plurality of air inlet openings spaced apart in the longitudinal direction of the housing and two air outlet openings, wherein the air inlet openings substantially in a horizontal plane and the two Air outlet openings lie substantially in a vertical plane.
  • a fan is arranged and each air outlet opening is associated with a heat exchanger, each having a circuit for circulation of a cooling or heat transfer fluid.
  • fans suck in air from the environment and pass through the heat exchanger, wherein a heat exchange between the sucked air and circulating in the heat exchangers cooling or heat transfer fluid takes place, which leads to a cooling of the intake air and evaporation of the Fluids in the heat exchangers leads.
  • EP 0 759 795 A2 proposes the arrangement of at least one flow guide in a region outside the flowed cross section of the heat exchanger, wherein the flow guide influences the flow of the air flowing into the heat exchanger in the edge regions of the heat exchanger.
  • the flow guide influences the flow of the air flowing into the heat exchanger in the edge regions of the heat exchanger.
  • the flow guiding devices ensure that air flowing along the ceiling of the housing of the heat exchanger device is guided to the upper edge regions of the heat exchangers.
  • EP 2 365 271 A2 Another approach for avoiding efficiency losses, which is caused by an uneven flow of heat exchangers, is proposed in EP 2 365 271 A2.
  • an air-susceptible evaporator which can be used in particular in an air-water heat pump, wherein the evaporator comprises at least two air-pressurized refrigerant lines and a first refrigerant line in a first evaporator region and a second refrigerant line in a second evaporator region.
  • the refrigerant lines in the first and second regions have different heat transfer efficiencies, which may result in overheating of the fluid carried in the refrigerant lines in the higher heat transfer efficiency region.
  • the refrigerant lines are designed differently from one another or adaptable to each other, so that the heat transfer or evaporation efficiency (Evaporation efficiency) in the refrigerant pipe, which is flowed at a lower air flow rate, is greater than in the other refrigerant line.
  • the efficiency of the evaporator can be increased.
  • controllable pressure reducing means are provided in at least one refrigerant line and the evaporator comprises measuring means for measuring the operational parameters, such as the flow velocity of the air flowing past the refrigerant lines and the pressure and the temperature of the in the Refrigerant pipes guided fluid.
  • the arrangement of depressurizing means in the refrigerant pipelines results in a pressure loss of the fluid flow of the fluid flowing in the refrigerant piping, thereby decreasing the efficiency.
  • the arrangement of measuring devices in the evaporator is complicated and expensive and requires a high maintenance. Proceeding from this, the invention has the object to show a simple and inexpensive to produce heat exchanger device with the highest possible efficiency.
  • a homogenization of the heat transfer in the individual strands should be achieved.
  • the heat exchanger device comprises a housing with at least one inflow opening and at least one outflow opening and at least one heat exchanger arranged inside the housing, in which a fluid, for example a coolant or refrigerant, is guided.
  • a fluid for example a coolant or refrigerant
  • the or each arranged in the housing heat exchanger in this case has an inflow, which is of air, which is sucked, for example, from the environment, can be flowed.
  • At least one or each heat exchanger is present in the inventive heat exchanger device Associated with air guide, which is disposed within the flowed cross section of the inflow surface of the respective heat exchanger and divides the inflow through the inflow air flow into at least two partial streams, wherein one of the partial streams is deflected in the direction of the respective heat exchanger by the or an air guide.
  • the air flow which flows through the inlet opening of the housing in the heat exchanger device, in at least two partial streams is made possible equalization of the flow velocity or the flow density of the inflow surface of the or each heat exchanger inflowing air.
  • the partial flows preferably impinge on the inflow surface of the heat exchanger at different points or in different areas of the inflowed cross section.
  • the or each air guide element which is assigned to a heat exchanger, is preferably arranged within the flowed cross section of the inflow surface of the respective heat exchanger, that a uniform distribution of the total amount of air flowing through the inflow opening of the housing into two or more streams, each with the same or at least similar flow density (or flow rate) takes place.
  • the or each air guide which is associated with a heat exchanger, is expediently shaped so that a deflection of at least one partial flow takes place in the direction of the inflow surface of the respective heat exchanger.
  • at least a partial flow is deflected by the air guide or the air guide so that this partial flow flows at least substantially perpendicular to the inflow surface of the heat exchanger.
  • the other partial streams or streams can be deflected by further deflection devices, for example, of wall sections of the housing, in the direction of the inflow surface of the heat exchanger.
  • the housing of the heat exchanger device is box-shaped and has an upper wall formed as a lid, a lower wall formed as a bottom and arranged therebetween and perpendicular thereto side walls, wherein the or each inflow opening in the lower wall and the or each outflow opening in a side wall is arranged.
  • the housing may be secured to a ceiling of a room with the upper wall formed as a lid.
  • a Fan arranged, which sucks air from the room and leads into the interior of the housing.
  • the or each Ventialtor is preferably designed as an axial fan.
  • each outflow opening is a heat exchanger, for example in the form of a heat exchanger, in particular an evaporator arranged.
  • Each heat exchanger is assigned at least one air guide and arranged within the cross section of the inflow surface of the respective heat exchanger.
  • the air drawn in by a fan is divided by the air guide element or by the air guide elements into two or more partial flows and at least one of the partial flows is deflected by an air guide element in the direction of the respective heat exchanger.
  • the partial flows flow under heat exchange with the guided in the heat exchanger fluid through the respective heat exchanger and finally through the respective heat exchanger associated discharge opening out of the housing.
  • the heat exchanger device comprises two heat exchangers, which are arranged opposite each other in side walls of the housing. Depending on the required power of the heat exchanger device, this comprises a plurality of inflow openings arranged one after the other in the longitudinal direction and at a distance from one another, in each of which a fan is arranged.
  • each fan is expediently arranged in a nozzle.
  • each inlet opening is surrounded by a projecting into the interior of the housing nozzle ring and the fan is at least partially disposed within the nozzle ring.
  • the rotor blades of the fan at least partially engage in the nozzle ring.
  • the or each fan is an axial fan, which is expediently arranged at least partially outside the flown cross section (Q) of the heat exchanger.
  • An improvement in the flow of air drawn through the or each inflow opening and a deflection of the partial flows on the Anströmfiumblee arranged in the housing heat exchanger can be achieved if the upper wall of the housing, which is opposite to the or each inflow, an outer portion and a thereto having adjacent inner portion, wherein the outer portion (expediently on both sides) adjacent to a heat exchanger and the inflowing cross-section of the Anströmfiumblee this heat exchanger limited, and the inner portion in the direction of the inflow opening relative to the outer portion in the interior of the housing projecting projection, wherein on the projection a fan is attached.
  • a rotary shaft of the fan is rotatably attached to the projection.
  • the projecting in this embodiment in the interior of the housing projection may be formed for example by a trapezoidal in cross-section plate, which is fixed to the upper wall of the housing.
  • a deflection of the upper part or streams is achieved in the direction of the inflow surface of the heat exchanger.
  • the transition between the projection and the outer portion of the upper wall may be formed for example by a curved or by an obtuse angle to the outer portion extending wall portion.
  • each air guide element which is associated with a heat exchanger, for example, plate-shaped or strip-shaped, in particular in the form of a baffle, which is within the flown cross section of the inflow surface of the associated heat exchanger in the longitudinal direction of the heat exchanger device and at least substantially parallel to the upper or extending to the lower wall of the housing extending.
  • the or each air guide is suitably bent downwards or angled downwards at the edges.
  • each air guide element is concavely curved on its underside, which faces the lower wall of the housing, or the edge regions of the air guide element are bent at an angle to the lower wall of the housing.
  • a directional deflection of the lower partial flow in the direction of the lower, bottom-side region of the inflow surface of the respective heat exchanger can take place.
  • the position of the or each air guide with respect to the lower wall of the housing is suitably adjustable, for example by pivoting the air guide.
  • the position of the air guide with respect to the lower wall of the housing or the inflow of the associated heat exchanger on the one hand, the amount of air in the individual streams and on the other hand changed the flow direction of the streams and adapted to the requirements.
  • the or each air guide element is streamlined, for example in the form of a support surface is formed.
  • each region of the heat exchanger or each strand of the pipes in the heat exchanger is uniformly supplied with air, so that in each area or in each strand of the heat exchanger, the same heat transfer efficiency prevails.
  • overheating of the fluid in individual strands of the heat exchanger can be avoided, whereby the efficiency of the heat exchanger device is improved.
  • Figure 1 Perspective view of a first embodiment of a heat exchanger device according to the invention
  • FIG. 1 Detail view into the interior of the heat exchanger device of Figure 3 Cross section through the heat exchanger device of Figure 1;
  • Figure 4 Detail view into the interior of the heat exchanger device of Figure 1 in a perspective view from below;
  • FIG. 5 Top view of the heat exchanger device of Figure 1 with removed
  • FIG. 6 Schematic representation of further embodiments of inventive heat exchanger devices
  • FIG. 7 Schematic representation of further embodiments according to the invention
  • FIG. 8 Schematic representation of further embodiments according to the invention
  • Heat exchanger means comprising two heat exchangers each containing a plurality of strands grouped in strands
  • FIGS. 1-5 show a first embodiment of a heat exchanger device according to the invention with two heat exchangers 1 a, 1 b arranged in a housing 2, wherein FIGS. 2 to 5 show a view into the interior of the housing 2.
  • FIGS. 2 to 5 show a view into the interior of the housing 2.
  • an end-face side wall is shown in FIGS. 2 and 3, an end-face side wall and a bottom wall in FIG. 4, and an upper wall of the housing in FIG. 5 to release a view into the interior of the housing 2.
  • the two heat exchangers 1a, 1b are arranged mirror-symmetrically in the housing 2 with respect to the central longitudinal plane of the housing 2 and parallel to one another and at a distance from one another.
  • Each heat exchanger 1 a, 1 b is composed of three heat exchanger blocks 1, 1 "arranged one behind the other in the longitudinal direction L of the heat exchanger device, as can be seen in Figure 1.
  • Each heat exchanger block 1,, 1" is in an outflow opening 4, 4 ', 4 ".
  • a heat exchanger 1 is referred to below, this means a heat exchanger 1a or 1b or both heat exchangers 1a, 1b and when referring to an outflow opening 4, an outflow opening 4, 4 ', 4 "is meant, in each of which a heat exchanger block 1, 1 "is arranged.
  • the housing 2 is box-shaped and comprises an upper wall 2a designed as a cover, a lower wall 2b formed as a bottom, and side walls 2c arranged therebetween and perpendicular thereto. In the two longitudinal side walls 2c, the outflow openings 4 are arranged with the heat exchangers 1 inserted therein.
  • inflow openings 3 in the longitudinal direction L are provided one behind the other and at a distance from each other.
  • the heat exchanger device may be arranged on a ceiling of a room by fixing the upper wall 2a to the ceiling.
  • the upper wall 2a and the lower wall 2b extend in a horizontal plane parallel to the ceiling of the room.
  • the upper wall 2a includes a trapezoidal sheet 20 having a horizontal outer portion 20a, an obtuse and obliquely inward central portion 20b, and a horizontal inner portion 20c and mirror symmetric to the central longitudinal plane of the housing 2 is formed.
  • the trapezoidal sheet metal 20 forms a projection 9 extending in the longitudinal direction L in the region of the central longitudinal plane, which projection is formed by the inner section 20c and projects inwards relative to the outer section 20a of the housing 2.
  • the horizontal outer portion 20a of the sheet 20 limits the flow cross-section Q of the inflow surface of the heat exchanger (1) upwards. Towards the bottom, the flow cross-section Q is bounded by the lower wall 2b of the housing 2.
  • each fan 6 comprises a rotatable rotor shaft 16 and rotor blades 7 arranged thereon, which extend in the radial direction Fan 6 is rotatably mounted on the projection 9 and coupled to a motor, not shown here, which drives the fan 6 in rotation.
  • the rotor blades 7 of each fan 6 are arranged in a nozzle.
  • the nozzle is formed by a nozzle ring 8 projecting into the interior of the housing 2, which is arranged around a circular inflow opening 3. It is further apparent from FIGS. 2 and 3 that the rotor blades 7 of the fan 6 partially engage in the nozzle ring 8 and project beyond the upper edge of the nozzle ring 8 with their remaining upper part.
  • the heat exchangers 1 arranged in the housing 2 are evaporators or heat exchangers, for example in the form of lamellar or finned tube heat exchangers or microchannel heat exchangers.
  • Each heat exchanger 1 in this case comprises a plurality of in the longitudinal direction L and parallel to each other extending pipelines 10, in which a fluid, such as a coolant or refrigerant, is performed.
  • the pipes 10 of a heat exchanger 1 can be connected to each other at their front ends via connecting pieces. In this way, multiple passes of the fluid through a heat exchanger 1 can be achieved.
  • different strands T 1, T 2, T 3 can be formed in a heat exchanger 1, as shown schematically in FIG. 9.
  • a heat exchanger 1 is composed of a plurality of heat exchanger blocks 1, 1 ", the pipelines 10 of adjacent heat exchanger blocks 1, ⁇ , 1" are connected to one another to transfer the fluid from one heat exchanger block to the other.
  • each heat exchanger 1 a running in the longitudinal direction L collecting trough or trough 11 is arranged below each heat exchanger 1 a running in the longitudinal direction L collecting trough or trough 11 is arranged below each heat exchanger 1 a running in the longitudinal direction L collecting trough or trough 11 is arranged below each heat exchanger 1 a running in the longitudinal direction L collecting trough or trough 11 is arranged. This serves to collect condensation, which can form on the surface of the heat exchanger 1, in particular on the outer surfaces of the pipelines 10.
  • each heat exchanger 1 is assigned an air guide element 5.
  • the heat exchanger la is assigned an air guide element 5a and the heat exchanger 1b is assigned an air guide element 5b.
  • an air guiding element 5 is used, one of the air guiding elements 5 a, 5 b or both is meant.
  • the spoiler elements 5 are expediently strip-shaped or plate-shaped, for example. As elongated sheets.
  • Each of a heat exchanger 1 associated air guide 5 is upstream and within the flown cross section Q and at a distance from the inflow surface of the heat exchanger. 1 arranged and extends in the longitudinal direction L of the heat exchanger device.
  • each air guide element 5 extends over the entire extent of the heat exchanger device in the longitudinal direction L, as can be seen for example from FIG. 4, ie over the entire length of the heat exchanger blocks 1, 1 "arranged one behind the other in the longitudinal direction L.
  • each air guiding element 5 has three sections, namely a horizontally extending central section and lateral sections angled away at an obtuse angle relative to the central section.
  • each heat exchanger 1 divides the inflowing air flow into two partial streams S1, S2.
  • Each of these partial streams Sl, S2 flows in a respective flow direction jl, j2 on a Anströmfi kaue of the associated heat exchanger 1.
  • the lower partial flow Sl is guided by the angled shape of the Lucasleitelements 5 obliquely downward toward a lower portion of the inflow surface of the heat exchanger 1 ,
  • This diversion of the lower partial flow S1 in the direction of a lower region of the inflow surface of the heat exchanger 1 is effected in particular by the angled section in the downstream region of the air guide element 5.
  • the upper partial flow S2 is passed between the upper side of the air guide element 5 and the trapezoidal plate 20 and partially on the upper wall 2a and the horizontal outer portion 20a of the sheet 20 is reflected.
  • the upper part stream S2 thereby flows in a flow direction j2, which points slightly obliquely downwards, in an upper section onto the inflow surface of the heat exchanger 1.
  • the air flowing in through an inflow opening 3 is thus conveyed through the air guide element 5 assigned to the heat exchanger 1 a lower partial flow Sl and an upper partial flow S2 divided, wherein the lower partial flow S l are directed by the air guide 5 and the upper partial flow S2 through the trapezoidal plate 20 respectively in the direction of Anströmfizze of the heat exchanger 1.
  • the two streams S1 and S2 meet in different areas on the Anströmfikiee of the heat exchanger 1, whereby a uniform flow of the heat exchanger 1 is ensured.
  • the two partial streams Sl, S2 in each case one equal flow rate or an equal flow density, ie, the flowing in the lower part of the flow S1 on the inflow surface of the heat exchanger 1 per unit time and area unit amount of air is equal to the amount of air flowing in the upper part of the stream S2 on the inflow.
  • the air guide elements 5 may have different shapes, in particular in their upstream region.
  • the air guide elements 5 which are shown in Figures 2-4, by a different angular position of the upstream portion compared to the middle, horizontal section, the amount of air in the lower partial flow Sl and the upper partial flow S2 are suitably adjusted.
  • the distribution of the amount of air in the two partial streams S 1 and S2 can also be varied by the position of the respective associated air guide element 5 with respect to the heat exchanger 1 and with respect to the upper wall 2a and the lower wall 2b. Therefore, it is expedient if the air guide elements 5 are arranged pivotably in the housing 2.
  • a pivotability of the air guiding elements 5 can be made possible, for example, by a pivotable mounting in the end-side side walls 2c of the housing 2.
  • the flow direction j 1 of the lower part flow can be adjusted to a desired direction of inflow to the inflow surface of the associated heat exchanger 1. It is expedient here to set a flow direction j 1 which is perpendicular to the inflow surface of the associated heat exchanger 1 or, as can be seen for example from FIG. 3, is directed slightly downward.
  • the flow direction j2 of the upper partial flow S2 essentially depends on the shape of the upper wall 2a of the housing 2 and in the embodiment shown on the shape of the trapezoidal sheet 20 arranged there. To a lesser extent, the flow direction j 2 of the upper partial flow S2 is also influenced by the shape of the air guide element 5.
  • the angle between the downstream portion and the horizontal, central portion of an air guide element 5 is in the range of 160 °, the amount of air per unit time and area in the two partial streams Sl, S2 on the heat exchanger 1 flowing air is about the same size.
  • the width of the horizontal, mean distance of an air guide element 5 suitably corresponds to the width of the downwardly angled portions of the air guide element 5.
  • the total width of the air guide element 5 is designated in Figure 3 with b.
  • the entire width b of the air guide element 5, ie its extent transverse to the longitudinal direction L, is preferably 1/3 - 1/2 of the diameter D of the rotor blades 7 of the fan 6 (FIG. 3).
  • the flow conditions are further influenced by the position of the air guide elements 5 with respect to the rotor blades 7 of the fan 6. Suitable flow conditions can be achieved if the cross-sectional area of a fan 6 covered by an air guide element 5 is approximately 15% -25% of the total area of a fan 6 swept by the rotor blades 7 (1/4 D 2 ⁇ ). This is illustrated in FIG. 5, the area of a fan 6 covered or covered by an air guide element 5a or 5b being shown in dashed lines in each case. Further embodiments of inventive heat exchanger devices are shown schematically in FIGS. 6-8, these embodiments, as well as the embodiment of FIGS.
  • each heat exchanger 1-5 each comprising two heat exchangers 1 a, 1 b arranged in a housing with at least one inlet opening 3 and a ventilator 6 arranged therein are.
  • the heat exchangers la, lb are each arranged in an outflow opening 4 in a side wall of the housing 2.
  • Each heat exchanger 1 is assigned at least one air guide element 5, ie the heat exchanger la is at least one air guide 5a and the heat exchanger lb at least one air guide 5b assigned.
  • Figures 6a - 6f show various embodiments of the air guide elements 5 a, 5 b.
  • the embodiment shown in Figure 6d corresponds to the embodiment of Figures 2-5.
  • a trapezoidal plate 20 is disposed on the upper wall 2a of the housing 2 .
  • the embodiments of FIGS. 6a, 6b and 6c have a flat upper wall 2a and do not include a trapezoidal sheet 20 on their inner surface.
  • the air guiding elements 5 (5 a and 5 b) each have a horizontal, middle section and a downwardly directed downstream edge section angled away from it.
  • the air guiding elements 5 are formed bent with a convex upper side, which faces the upper wall 2a of the housing 2.
  • FIG. 7 Various embodiments are also shown in FIG. 7, wherein the embodiments of FIGS. 7a, 7b and 7c do not have a trapezoidal sheet 20 on the inside of the upper wall 2a and the embodiments of FIGS. 7d, 7e and 7f each have a trapezoidal sheet 20 on the inside of the Upper wall 2a included.
  • the embodiments shown in FIGS. 7a and 7d each have air-guiding elements 5a, 5b, which are designed to be drop-shaped or streamlined.
  • FIGS. 7b and 7e each show heat exchanger devices in which each heat exchanger is assigned two superimposed air guide elements 5, 5 ', wherein the upper air guide element 5 is offset from the lower air guide element 5' to the respective associated heat exchanger 1.
  • FIGS. 7a, 7b and 7c do not have a trapezoidal sheet 20 on the inside of the upper wall 2a
  • the embodiments of FIGS. 7d, 7e and 7f each have a trapezoidal sheet 20 on the inside of the Upper wall 2a included
  • the air guiding elements 5a, 5b are shaped as in the embodiments of FIGS. 6a and 6d, respectively, but pivoted counterclockwise by approximately 45 ° in comparison to these embodiments.
  • the embodiments shown in FIGS. 8 a and 8 c again have drop-shaped or streamlined air-guiding elements 5 a, 5 b, which are pivoted in the counterclockwise direction by approximately 45 ° in comparison to the embodiments of FIGS. 5 a and 5 b.
  • each heat exchanger 1 two air guide elements 5, 5 'are assigned, which are each roof-shaped.
  • each heat exchanger 1 associated air guide elements 5 is suitably adapted to the size and in particular to the height of the respective heat exchanger 1. With higher heat exchangers 1, more than two air guide elements can also be assigned to one heat exchanger 1. When using more than one air guide element per heat exchanger, the air flowing in through the inflow opening 3 is divided into more than two partial flows which each flow in different areas on the inflow surface of the respective heat exchanger.
  • the use of a plurality of air guide elements per heat exchanger is particularly useful in heat exchangers 1, which have a subdivision into a plurality of superposed strands of pipes.
  • FIG. 9 schematically shows such an embodiment of a heat exchanger device according to the invention with two heat exchangers 1 a, 1 b, each containing a plurality of pipelines 10 grouped in strands T 1, T 2, T 3.
  • the pipes 10 of a heat exchanger 1 are interconnected so that there are three strands Tl, T2, T3 arranged one above the other. These are connected via a supply line 21 and a manifold in parallel with a (cool or liquid) fluid applied.
  • the fluid flows through the pipelines 10 of the strands Tl, T2, T3 with heat exchange with the air flowing through the heat exchanger 1 air and heats up or is thereby evaporated.
  • the vaporized fluid is collected in a manifold 22, which is connected to the strands Tl, T2, T3 of the heat exchanger 1, and, for example, forwarded to a (not shown here) compressor and downstream condenser.
  • Each heat exchanger 1 are each assigned two air guide elements 5, 5 '.
  • the air flowing in through the inflow opening 3 is divided into partial streams S1, S2 and S3 and the partial streams S1, S2 and S3 are directed in the direction of the inflow surface of the heat exchanger 1, as indicated in FIG. 9, in particular in the heat exchanger 1a.
  • the air guide elements 5, 5 ' are shaped and arranged so that each strand Tl, T2, T3 of the heat exchanger 1, a partial stream Sl, S2, and S3 is supplied and the respective partial flow flows to the heat exchanger 1 in the region of the inflow, in the the associated strand Tl, T2 or T3 is located.
  • more than three strands may be provided in each heat exchanger 1. It is not absolutely necessary to divide the air flowing in through an inflow opening 3 through the air guiding elements 5 into as many partial flows, so that each branch of the heat exchanger is assigned a partial flow. It may be sufficient to assign each heat exchanger 1 only one air guide element 5, to ensure a uniform flow of air to the inflow surface of the heat exchanger. In this case, each strand is preferably uniformly flowed by an air flow with the same flow velocity or the same current density.
  • the invention is not limited to the exemplary embodiments illustrated in the drawings.
  • the number of inlet openings 3 and the fans 6 arranged therein can be adapted to the required power of the heat exchanger device.
  • the number of heat exchanger blocks 1,, 1 "of a heat exchanger can also be adapted to the required power of the heat exchanger device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un dispositif échangeur de chaleur, destiné à échanger de la chaleur entre l'air et un fluide guidé dans au moins un échangeur de chaleur (1), comprend un boîtier (2) pourvu d'au moins une ouverture d'entrée (3) et d'au moins une ouverture de sortie (4). Au moins un échangeur de chaleur (1) est disposé dans le boîtier, et le ou chaque échangeur de chaleur (1) présente une surface d'entrée par laquelle un flux d'air entre dans l'échangeur de chaleur (1). Pour homogénéiser l'air arrivant sur la surface d'afflux du ou de chaque échangeur de chaleur, chaque échangeur de chaleur (1) est associé à au moins un élément de guidage d'air (5) qui est disposé à l'intérieur de l'aire transversale (Q) de la surface d'afflux de l'échangeur de chaleur respectif (1) et qui divise l'écoulement d'air entrant par l'ouverture d'entrée (3) en moins deux flux partiels (S1, S2) et qui dévie au moins un flux partiel (S1) en direction de l'échangeur de chaleur respectif (1).
PCT/EP2018/061661 2017-05-16 2018-05-07 Dispositif échangeur de chaleur et procédé d'échange de chaleur entre l'air et un fluide guidé dans un échangeur de chaleur Ceased WO2018210596A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18730978.6A EP3625507B1 (fr) 2017-05-16 2018-05-07 Dispositif échangeur de chaleur et procédé d'échange de chaleur entre l'air et un fluide guidé dans un échangeur de chaleur
RU2019137088A RU2752210C2 (ru) 2017-05-16 2018-05-07 Теплообменное устройство и способ теплообмена между воздухом и текучей средой, транспортируемой внутри теплообменника
PL18730978.6T PL3625507T3 (pl) 2017-05-16 2018-05-07 Urządzenie do wymiany ciepła oraz sposób wymiany ciepła między powietrzem a nośnikiem prowadzonym w przenośniku ciepła

Applications Claiming Priority (2)

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DE102017110580.8 2017-05-16
DE102017110580.8A DE102017110580A1 (de) 2017-05-16 2017-05-16 Wärmeaustauschereinrichtung und Verfahren zum Austausch von Wärme zwischen Luft und einem in einem Wärmeübertrager geführten Fluid

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WO2018210596A1 true WO2018210596A1 (fr) 2018-11-22

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PCT/EP2018/061661 Ceased WO2018210596A1 (fr) 2017-05-16 2018-05-07 Dispositif échangeur de chaleur et procédé d'échange de chaleur entre l'air et un fluide guidé dans un échangeur de chaleur

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EP (1) EP3625507B1 (fr)
DE (1) DE102017110580A1 (fr)
PL (1) PL3625507T3 (fr)
RU (1) RU2752210C2 (fr)
WO (1) WO2018210596A1 (fr)

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DE102020215477A1 (de) 2020-12-08 2022-06-09 Robert Bosch Gesellschaft mit beschränkter Haftung Wärmeübertragervorrichtung und Verwendung einer Wärmeübertragervorrichtung

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JPH08200722A (ja) * 1995-01-31 1996-08-06 Mitsubishi Electric Corp 床置式空気調和機
EP0836057A1 (fr) * 1996-10-09 1998-04-15 Friga Bohn, Société Anonyme Bac de collecte des condensats et appareil frigorifique équipé d'un tel bac
EP0836057B1 (fr) 1996-10-09 2003-02-12 Friga Bohn, Société Anonyme Bac de collecte des condensats et appareil frigorifique équipé d'un tel bac
KR20090029077A (ko) * 2007-09-17 2009-03-20 엘지전자 주식회사 공기조화기의 실내기
EP2365271A2 (fr) 2010-03-05 2011-09-14 Wolf GmbH Evaporateur pouvant être alimenté par air, pompe à air-eau-chaleur ainsi que procédé de fabrication ou de réglage d'un évaporateur pouvant être alimenté par air ou d'une pompe à air-eau-chaleur
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EP2759795A2 (fr) 2013-01-29 2014-07-30 GEA Küba GmbH Échangeur de chaleur
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RU2019137088A3 (fr) 2021-06-16
EP3625507B1 (fr) 2025-07-30
RU2752210C2 (ru) 2021-07-23
EP3625507C0 (fr) 2025-07-30
EP3625507A1 (fr) 2020-03-25
DE102017110580A1 (de) 2018-11-22
PL3625507T3 (pl) 2025-10-13
RU2019137088A (ru) 2021-06-16

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