EP2504531A2 - Dispositif thermique pour produire de l'énergie mécanique et/ou électrique - Google Patents

Dispositif thermique pour produire de l'énergie mécanique et/ou électrique

Info

Publication number
EP2504531A2
EP2504531A2 EP10779723A EP10779723A EP2504531A2 EP 2504531 A2 EP2504531 A2 EP 2504531A2 EP 10779723 A EP10779723 A EP 10779723A EP 10779723 A EP10779723 A EP 10779723A EP 2504531 A2 EP2504531 A2 EP 2504531A2
Authority
EP
European Patent Office
Prior art keywords
pressure vessel
medium
working medium
contractive
expansion
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.)
Granted
Application number
EP10779723A
Other languages
German (de)
English (en)
Other versions
EP2504531B1 (fr
Inventor
Erich Kumpf
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.)
Bems Curd
Original Assignee
Bems Curd
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 Bems Curd filed Critical Bems Curd
Publication of EP2504531A2 publication Critical patent/EP2504531A2/fr
Application granted granted Critical
Publication of EP2504531B1 publication Critical patent/EP2504531B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F01K27/005—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for by means of hydraulic motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/20—Other positive-displacement pumps
    • F04B19/24—Pumping by heat expansion of pumped fluid

Definitions

  • Thermal device for generating mechanical and / or electrical energy
  • the present invention relates to a thermal device for generating mechanical and / or
  • geothermal energy is known in the so-called geothermal power generation, for which, however, sufficiently high temperatures of> 95 ° C are a prerequisite.
  • Geothermal energy or geothermal energy is the total energy stored in the form of heat below the Earth's surface. While in the upper 10 to 20 meters the
  • Object of the present invention is a thermal device for generating mechanical and / or
  • the temperature working range can be very low, so that the corresponding temperatures either natural
  • the respectively to be generated upper and / or lower temperature limit can or can be generated artificially due to the relatively low temperature gradient in a cost effective manner.
  • Hydraulic fluid used.
  • a preferred expansive / contractive medium results from the features of claim 4.
  • water is used or used as the working medium. It can be used as a generator unit known per se water turbine
  • Embodiment provided the features of claim 9. An advantageous embodiment results from the features of claim 10.
  • Figure 1 is a schematic representation of a thermal
  • FIG. 3 is a graphic representation of the expansion or
  • Figure 5 is a representation corresponding to Figure 2, but according to another embodiment of a thermal device according to the present invention.
  • the thermal device 10 illustrated in FIGS. 1 and 2 which serves to generate mechanical and / or electrical energy by utilizing or applying a relatively low temperature gradient in the low-temperature region, has a pressure vessel 11, a reservoir 15 and a generator unit 20 , by means of which mechanical and / or electrical energy is generated.
  • the pressure vessel 11 is with an expansive and
  • expansion medium 12 contractive medium, hereinafter referred to as expansion medium 12, and filled with a working medium 13.
  • Both the expansion medium 12 and the working medium 13 are liquid in the embodiment, wherein the expansion medium 12 in complete contraction in a solid phase
  • the water is in the pressure vessel 11 above the expansion medium 12 to prevent mixing of the two media 12 and 13.
  • Expansion medium is a medium used, which reaches its greatest expansion or contraction in the phase transformation or in the phase transition from solid to liquid and vice versa. While Figure 1 the output state, that is the
  • the pressure vessel 11 is connected via a connecting pressure line 21 to the input of the generator unit 20, which is shown here in the form of a water turbine 22 provided with a paddle wheel 23.
  • the connecting pressure line 21 ends with its outlet nozzle 24 within a housing 25 of the
  • Producer unit 20 and is directed to the turbine wheel 23.
  • Connecting pressure line 21 for the working fluid 13 is provided with a check valve 26, the only one
  • the reservoir 15 is by means of a first
  • Producer unit 20 connected such that the interior of the housing 25 is connected to the reservoir 15.
  • first connection line 16 or as shown here in the second connection line 17 is a second
  • Expansion medium 12 is substantially depressurized or
  • Device 10 according to FIGS. 1 and 2 is the following:
  • Expansion medium 12 at bspw. a temperature of + 5 ° C in an initial state in which the expansion medium 12 has its smallest volume, possibly in a solid state.
  • a temperature of, for example, + 7 ° C can be selected, in which the
  • expansion medium 12 may be low, it does not
  • Working medium 13 is greater than the volume difference
  • Pressure vessel 11 takes place. At a certain selected pressure within the pressure vessel 11 opens the first
  • FIG. 2 This is shown in FIG. 2 in a final state in which, for example, at 15 ° C., the maximum expansion of the
  • Expansion medium 12 is reached.
  • the working fluid 13, which drives the turbine wheel 23, collects in the housing 25 of the turbine 22 and flows through the second connecting line 17 into the reservoir 15, the water level thereby increases because the second check valve 18 is closed due to the pressure within the pressure vessel 11 ,
  • hermetically sealed pressure vessel 11 leads. At a certain selected negative pressure within the pressure vessel 11 opens the second check valve 18 (and the first
  • the pressureless pressure vessel 11 is filled with the working fluid water accordingly, so that after cooling from + 15 ° C to, for example, + 7 ° C of the expansion medium 12, the initial state of FIG.
  • the temperature gradient which is in the range of
  • two or more pressure vessels 11 may be provided including their connecting lines 21 to the generator unit 20, so that a continuous driving of the generator unit 20 is possible due to the time-shifted operation of the expansion medium 12 in each of the pressure vessels 11 is.
  • the heating or cooling of the expansion medium 12 to the upper and lower temperature value can either by
  • Figure 4 shows a second embodiment of the present invention, in which the working medium 13 has a higher density than the expansion medium 12, which means that the stratification of the two media 12 and 13 is such that the working fluid 13 in the bottom of the pressure vessel 11 'and the Expansion medium 12 is arranged above it.
  • This also means that both the connecting line 21 to the generator unit 20 and the first connecting line 16 from the reservoir 15 'in the pressure vessel 11' through the expansion medium 12 into the lower and
  • the volume of the working medium 13 is greater than the volume difference between the volume of the expansion medium 12 in the initial state and the volume in the fully expanded state.
  • FIG. 4 also shows an embodiment of FIG
  • Pressure vessel 11 'and / or reservoir 15' which can be selected both in the embodiment of Figure 4 and in the embodiment of Figures 1 and 2.
  • the reservoir 15 ' which is provided in both embodiments with a vent opening 19 or 19' to hold the reservoir pressure-free, equipped with heat transfer elements, that is, cooling coils 28, the active lowering or holding the
  • Reservoir 15 'metal mesh 29 may be preferably made of copper.
  • a heat-conducting metal fabric 31 made of preferably copper is arranged in the pressure vessel 11 within a region of the expansion medium 12 facing away from the working medium 13.
  • Immersion medium 12 immersed preferably as deep as the expansion medium 12 reaches in the initial state.
  • the pressure jacket 34 of the pressure vessel 11 is surrounded by a thermal insulation 35 and this in turn by a hermetically sealed outer shell 36.
  • Producer unit 20 a corresponding plurality of such pressure vessel 11 'and possibly also reservoir 15'
  • expansion medium 12 in a manner not shown between expansion medium 12 and
  • Figure 5 shows a third embodiment of a
  • Thermal device 10 "of the present invention in which the expansion medium 12 ⁇ simultaneously acts as a working medium, which means that within the thermal
  • FIG. 5 shows, according to the representation of Figure 2, the expansion state of the expansion medium 12 ⁇ and thus the working state.
  • Expansion fluid 12 ⁇ is liquid
  • the check valve 26 opens in the connecting pressure line 21 and the nozzle 24 to the impeller 23 of the turbine 22 of the generator unit 20th flows and drives them rotating.
  • Expansion medium 12 x is returned by the generator unit 20 in the reservoir 15 'and there first
  • the expansion medium 12 x in the pressure vessel 11 "shut down to the lower temperature, that is cooled, the expansion medium 12 is in its volume
  • the expansion medium 12 corresponds to the expansion medium 12 described above, so that in terms of
  • the reservoir 15 "of the thermal device 10" corresponds to the reservoir 15 ⁇ of the second
  • Pressure vessel 11 may be provided with heat-conducting metal fabric 29 and 31, respectively.
  • Expansion cycle is located and vice versa. It is understood that more than two such systems consisting of pressure vessel and possibly reservoir can be used. In order to shorten the cycle time in addition, is driven with higher inlet temperatures from the outside to bring the required working temperature due to time delay by overcoming the wall thickness of the pressure vessel, quickly to the expansion medium.
  • Hydraulic motor acts as a generator unit 20.
  • Hydraulic fluid may be, for example, an HFC fluid comprising diethylene glycol and water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Central Heating Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

La présente invention a pour objet de permettre à un dispositif thermique (10) pour produire de l'énergie mécanique et/ou électrique, de fonctionner à des températures et des gradients de température considérablement faibles, des gradients de température présents naturellement ou produits en correspondance, étant utilisés. A cet effet, un milieu (12) pouvant subir une dilation ou une contraction thermique est disposé dans un récipient sous pression (11) soumis en alternance à deux valeurs de température différentes, et un milieu de travail (13) est disposé par couches axiales alternées avec le milieu pouvant subir une dilation ou une contraction thermique partiellement dans le récipient sous pression (11), et partiellement dans un réservoir (15) relié au récipient sous pression (11), une unité (20) de production d'énergie mécanique et/ou électrique entraînée par le milieu de travail (13) étant disposée entre la zone du récipient sous pression (11) qui contient le milieu de travail (13), et le réservoir (15).
EP10779723.5A 2009-11-23 2010-11-22 Dispositif thermique pour produire de l'énergie mécanique et/ou électrique Not-in-force EP2504531B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009055982A DE102009055982A1 (de) 2009-11-23 2009-11-23 Thermische Einrichtung zum Erzeugen von mechanischer und/oder elektrischer Energie
PCT/EP2010/007061 WO2011060956A2 (fr) 2009-11-23 2010-11-22 Dispositif thermique pour produire de l'énergie mécanique et/ou électrique

Publications (2)

Publication Number Publication Date
EP2504531A2 true EP2504531A2 (fr) 2012-10-03
EP2504531B1 EP2504531B1 (fr) 2013-10-23

Family

ID=43902167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10779723.5A Not-in-force EP2504531B1 (fr) 2009-11-23 2010-11-22 Dispositif thermique pour produire de l'énergie mécanique et/ou électrique

Country Status (3)

Country Link
EP (1) EP2504531B1 (fr)
DE (1) DE102009055982A1 (fr)
WO (1) WO2011060956A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088207A1 (de) 2011-12-12 2013-06-13 Erich Kumpf Thermische Einrichtung zum Erzeugen von mechanischer und/oder elektrischer Energie
DE102012211922A1 (de) 2012-07-09 2014-01-09 Erich Kumpf Thermische Einrichtung zum Erzeugen von mechanischer und/oder elektrischer Energie
WO2013087600A2 (fr) 2011-12-12 2013-06-20 Erich Kumpf Dispositif thermique destiné à la production d'énergie mécanique et/ou d'énergie électrique
CN103912465A (zh) * 2013-01-07 2014-07-09 马照龙 一种温差动力转换方法
FR3006370B1 (fr) * 2013-05-30 2015-07-24 Claude Favy Dispositif de conversion d'energie thermique en energie mecanique
CN115788818B (zh) * 2023-02-08 2023-06-16 中国科学技术大学 一种液态金属驱动装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953973A (en) * 1974-05-29 1976-05-04 Cheng Chen Yen Heat engine and heat pump utilizing a working medium undergoing solidification and melting operations
DE2919263C2 (de) * 1979-05-12 1983-12-08 Dieter 7317 Wendlingen Knauer Wärmekraftmaschine
FR2523221A1 (fr) * 1982-03-11 1983-09-16 Fraix Burnet Raymond Procede et dispositif pour la production d'une energie directement utilisable a partir de deux sources de chaleur chaude et froide, situees dans une zone de temperature relativement basse
US20040168437A1 (en) * 2003-02-27 2004-09-02 Haq Anwar Ul Vapor over liquid diaphragm engine
US20060059912A1 (en) * 2004-09-17 2006-03-23 Pat Romanelli Vapor pump power system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011060956A2 *

Also Published As

Publication number Publication date
EP2504531B1 (fr) 2013-10-23
DE102009055982A1 (de) 2011-05-26
WO2011060956A2 (fr) 2011-05-26
WO2011060956A3 (fr) 2012-02-23

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