EP0324021B1 - Resorptions-wärmewandleranlage - Google Patents

Resorptions-wärmewandleranlage Download PDF

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Publication number
EP0324021B1
EP0324021B1 EP88907049A EP88907049A EP0324021B1 EP 0324021 B1 EP0324021 B1 EP 0324021B1 EP 88907049 A EP88907049 A EP 88907049A EP 88907049 A EP88907049 A EP 88907049A EP 0324021 B1 EP0324021 B1 EP 0324021B1
Authority
EP
European Patent Office
Prior art keywords
solution
circuit
pressure
solution circuit
pressure level
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.)
Expired - Lifetime
Application number
EP88907049A
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German (de)
English (en)
French (fr)
Other versions
EP0324021A1 (de
Inventor
Vinko Mucic
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.)
TCH THERMO-CONSULTING-HEIDELBERG GmbH
Original Assignee
TCH THERMO-CONSULTING-HEIDELBERG GmbH
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Application filed by TCH THERMO-CONSULTING-HEIDELBERG GmbH filed Critical TCH THERMO-CONSULTING-HEIDELBERG GmbH
Priority to AT88907049T priority Critical patent/ATE62991T1/de
Publication of EP0324021A1 publication Critical patent/EP0324021A1/de
Application granted granted Critical
Publication of EP0324021B1 publication Critical patent/EP0324021B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/02—Compression-sorption machines, plants, or systems

Definitions

  • the invention relates to a combined with at least one compression and expansion machine resorption heat conversion system, such as a heat pump, refrigeration system or heat transformer, which is operated with a two-fluid working medium, preferably an ammonia-water mixture, in order to supply thermal energy supplied by at least one external heat source To convert thermal energy with a different temperature level, and the two coupled solution circuits, in which thermal energy is supplied at different pressure and temperature levels for degassing the working fluid or for re-or absorption, and the degassing from the at low pressure level located rich solution of the gaseous working fluid component expelled from one solution circuit by the compression machine to the higher pressure level of this solution circuit and that at the higher pressure level of the other solution circuit from the rich L.
  • a compression and expansion machine resorption heat conversion system such as a heat pump, refrigeration system or heat transformer
  • a two-fluid working medium preferably an ammonia-water mixture
  • solution expelled gaseous working medium component of the other solution circuit is expanded through an expander to a lower pressure level, and wherein each solution cycle having a leading from the lower to the higher pressure level flow for the solution and a leading from the higher to the lower pressure level return to the solution.
  • Known heat converter systems (DE-PS 35 36 953) with two solution circuits, which work with at least one compression and one expansion machine, represent improved efficiency developments of older known absorption heat converter systems with two solution circuits (DE-PS 33 44 599, DE-PS 34 24 950).
  • the two solution circuits are operated independently of one another as closed solution circuits, whereby their continuous operation, however, presupposes that the quantity and concentration balance between the two circuits is equalized to compensate for concentration differences in the circuits as a result of different amounts of between the circuits of exchanged gaseous working fluid components to avoid.
  • the invention has for its object to develop the known, with at least one compression and one expansion machine heat converter system so that the equipment and control engineering and thus the investment costs are reduced, the system _ even with changing working conditions in the two solution circuits _ at least there is no deterioration in efficiency.
  • this object is achieved according to the invention in that the two solution circuits are coupled in that the flow of each solution circuit with the return of the other solution circuit in each case without the interposition of control or regulating elements at a common, the high pressure level of the medium pressure level representing the one and the low pressure level of the other solution circuit, and that in this connection a sorption or degassing unit common to both circuits is switched on.
  • the configuration is expediently such that the resorber of the first solution circuit located at a low pressure level and the absorber of the second solution circuit located at a higher pressure level are combined to form the common sorption unit, in which on the one hand the Degasser of the first solution circuit at low pressure and low temperature expelled gaseous working fluid component after pressure and temperature increase by means of the compression machine and on the other hand the gaseous working fluid component expelled in the degasser of the second solution circuit at high pressure and high temperature with pressure and temperature reduction in the expansion machine on the common middle Pressure level at an intermediate temperature be re-absorbed or absorbed in the poor solution.
  • a major advantage of this heat pump circuit with directly coupled solution circuits is that the ratio of the amounts of the gaseous pressure medium component expelled at low temperature and low pressure in the degasifier of the first solution circuit and at high temperature and high pressure in the degasifier of the second solution circuit are completely arbitrary can, so that a heat source of low and high temperature with extremely different or changing amounts of heat can be interconnected.
  • the design is such that the degasser of the first solution circuit, which is at a high pressure level, and the degasser of the second solution circuit, which is at a low pressure, are combined to form a common degasser, in which the working medium component is gaseous at the medium pressure level and at an intermediate temperature expelled from the rich solution and then partly to the absorber of the second solution circuit with pressure and temperature increase by means of the compression machine to the resorber of the first solution circuit and partly to the absorber of the second solution circuit with pressure and temperature reduction and where it is absorbed or absorbed in the poor solution.
  • the heat transformer circuit constructed in this way has the essential advantage that the gaseous working fluid component expelled in the degasifier can be distributed in any quantity ratios to the solution circuits. This means that either a larger part of the gaseous working fluid component with pressure increase and subsequent absorption for the generation of useful heat of high temperature and a correspondingly smaller part with pressure reduction in an expansion machine for the production of mechanical energy or vice versa can be used, depending on whether in the special application rather Thermal energy or mechanical energy is needed.
  • Figure 1 shows schematically the circuit structure of an embodiment designated in its entirety with 10, designed as a heat pump, while in Figure 2 the illustration is such that the horizontal position of the functional components or lines shown schematically shows the concentration and their vertical position schematically shows the pressure illustrated in principle in the two-substance work equipment.
  • the system 10 has two solution circuits I and II for the working medium, which preferably consists of an ammonia / water mixture, the solution circuits, however, as is explained in more detail below, being directly coupled.
  • the solution circuit I shown below in FIG. 1 has a degasser 12 and a sorption unit 14, which represents the resorber of this solution circuit, which are connected by lines 16 and 18 with the solution pump 20 or throttle element 22 switched on.
  • the low pressure p1 degasser 12 is from the incoming over the line 18 rich solution of the working fluid by supplying heat at a low temperature level t1 gaseous working fluid component in a connecting line 24 with the compressor 26 expelled, in which the gaseous working fluid component to an intermediate pressure p2 is compressed.
  • the poor solution emerging from the degasser 12 via the line 16 then flows from the solution pump 20 and is also raised in pressure to p 2 to the sorption unit 14, which is connected to the connecting line 24 via a branch line 28, so that in it via the branch line 28 recycled gaseous working fluid component can be absorbed again in the poor solution, heat of absorption being obtained at an intermediate temperature t2 which is higher than t 1 and which can be dissipated as useful heat.
  • From the sorption unit 14 then again rich solution flows via line 18 back to the degasser 12, the throttle member 22 again reducing the pressure to p 1.
  • a heat exchanger 30 connected in the region of the intermediate pressure p 2 between the lines 16 and 18, thermal energy contained in the rich solution is transferred to the poor solution.
  • the system is practically a two-component compression heat pump, in which in principle further measures to improve its performance figure, e.g. the measures disclosed in the _ not previously published _ patent application P 37 16 642.5 for additional degassing of the poor solution on one between p1 and p2 lying pressure by means of heat transfer from the rich solution and compression of the gaseous working medium component expelled to the pressure p2 and promotion of the additional amount of gas shaped working fluid component in the sorption unit, can be realized.
  • these measures are not the subject of the present application, they are not described in detail within the scope of the present application and _ for the sake of clarity _ are also not shown in the drawing figure.
  • the system 10 also has the second solution circuit II shown above in the drawings, in which the sorption unit 14, which represents the absorber of this second solution circuit, is connected to a desorber 32 via lines 34 and 36 with the solution pump 38 or throttle element 40 switched on, and a further heat exchanger 42 is.
  • thermal energy is supplied at a temperature t3> t2 and thus expelled from the rich solution flowing in via the line 34 gaseous working fluid component into a connecting line 44, in which an expansion machine 46 _, for example, ammonia -Turbine _ is arranged, in which the pressure in the gaseous working fluid component is reduced to p2, the expansion machine doing work, which is converted into electrical energy in a generator 48 and / or used for the direct drive of further machines, for example the compressor 26 can.
  • an expansion machine 46 _ for example, ammonia -Turbine _
  • the sorption unit 14 must therefore be designed for the throughput of the amount of poor solution flowing in from the degasser 12 and the desorber 32 and the re-absorption of the gaseous working fluid component expelled in the degasser 12 and in the desorber 32. Concentration differences in the solution circuits I and II which impair the continuous operation of the system 10 cannot therefore occur, since the solution circuits are coupled.
  • the electrical energy generated in the electrical generator 48 driven by the expansion machine 46 is obtained as additional useful energy, from which, however, the drive energy required to drive the compressor 26 must be subtracted when calculating the overall efficiency of the system.
  • the heat converter system shown in FIGS. 3 and 4 designated in its entirety by 50 and operating as a heat transformer, has a basic structure corresponding to the heat converter system 10 with two solution circuits I and II operated at different pressure levels, directly interconnected at an intermediate pressure p 2, but with the functional differences between a heat transformer and a heat pump must be taken into account.
  • the solution circuit I shown above in the drawing figures is formed by a degasser 52 which also forms part of the solution circuit II and which is connected to a resorber 54 via lines 56, 58 with the solution pump 60 or throttle element 62 switched on.
  • gaseous working medium component is fed from the rich solution of the working medium supplied via the line 58 by supplying heat at the temperature level t 2 into a connecting line branch connected to a connecting line 64 with the compressor 66 switched on 68 expelled.
  • the compressor 66 promotes it flowing from the degasser 52 gaseous working fluid component with pressure increase to the pressure p3 to the resorber 52, where it dissipates the heat of absorption occurring at the temperature t3 in the poor solution flowing in there after pressure increase by the solution pump 60 via the line 56 is absorbed.
  • the rich solution then flows back to the degasser 52 via the line 58 and after the pressure in the throttle element 62 has been reduced.
  • a heat exchanger 70 transfers thermal energy from the rich solution flowing in line 58 to the poor solution flowing in line 56.
  • the solution circuit I can also be understood here again as a two-component compression heat pump, which in connection with the system 10 for the solution circuit I regarding the improvement of the performance figure of such a compression heat pump by further measures also with regard to the solution circuit I of the heat converter system 50 applies.
  • the heat energy in the resorber 52 with the temperature t3> t2 thus represents useful energy in this case.
  • the solution circuit II in addition to the degasser 52 forming part of the solution circuit I, is formed by an absorber 72, which is connected to the degasser 52 via lines 74, 76 with the solution pump 78 or throttle element 80 switched on, again through a heat exchanger 82 transfers heat from the rich solution flowing in line 74 to the poor solution flowing in line 76.
  • a further connecting line 84 is connected, into which an expansion machine 86 driving a generator 88 is switched on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP88907049A 1987-07-20 1988-07-07 Resorptions-wärmewandleranlage Expired - Lifetime EP0324021B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88907049T ATE62991T1 (de) 1987-07-20 1988-07-07 Resorptions-waermewandleranlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723938 1987-07-20
DE19873723938 DE3723938A1 (de) 1987-07-20 1987-07-20 Resorptions-waermewandleranlage

Publications (2)

Publication Number Publication Date
EP0324021A1 EP0324021A1 (de) 1989-07-19
EP0324021B1 true EP0324021B1 (de) 1991-04-24

Family

ID=6331945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907049A Expired - Lifetime EP0324021B1 (de) 1987-07-20 1988-07-07 Resorptions-wärmewandleranlage

Country Status (5)

Country Link
US (1) US4955931A (enrdf_load_stackoverflow)
EP (1) EP0324021B1 (enrdf_load_stackoverflow)
JP (1) JPH02500128A (enrdf_load_stackoverflow)
DE (1) DE3723938A1 (enrdf_load_stackoverflow)
WO (1) WO1989000665A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791157A (en) * 1996-01-16 1998-08-11 Ebara Corporation Heat pump device and desiccant assisted air conditioning system
DE19721351A1 (de) * 1997-05-22 1998-11-26 Ees Erdgas Energiesysteme Gmbh Verfahren und Anlage zum Erzeugen von Kälte und/oder Wärme
AU1460399A (en) * 1998-02-20 1999-09-06 Hysorb Technology, Inc. Heat pumps using organometallic liquid absorbents
US20070144195A1 (en) * 2004-08-16 2007-06-28 Mahl George Iii Method and apparatus for combining a heat pump cycle with a power cycle
WO2008115236A1 (en) * 2007-03-21 2008-09-25 George Mahl, Iii Method and apparatus for combining a heat pump cycle with a power cycle
CN102052110A (zh) * 2010-11-02 2011-05-11 谢瑞友 大功率空气能动力源

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE491065C (de) * 1926-06-12 1930-02-05 Frans Georg Liljenroth Kaelteerzeugungsmaschine nach dem Absorptionsprinzip
US4531374A (en) * 1981-03-24 1985-07-30 Georg Alefeld Multi-stage apparatus having working-fluid and absorption cycles, and method of operation thereof
DE3119989C2 (de) * 1981-05-20 1986-02-06 Mannheimer Versorgungs- und Verkehrsgesellschaft mbH (MVV), 6800 Mannheim Zwei- oder Mehrstoff-Kompressions-Wärmepumpe bzw. -Kältemaschine mit Lösungskreislauf
DE3344599C1 (de) * 1983-12-09 1985-01-24 TCH Thermo-Consulting-Heidelberg GmbH, 6900 Heidelberg Resorptions-Wärmewandleranlage
DE3424949C2 (de) * 1984-07-06 1986-06-05 TCH Thermo-Consulting-Heidelberg GmbH, 6900 Heidelberg Resorptions-Wärmetransformatoranlage
US4586344A (en) * 1984-10-23 1986-05-06 Dm International Inc. Refrigeration process and apparatus
NL8403517A (nl) * 1984-11-19 1986-06-16 Rendamax Ag Absorptie-resorptie warmtepomp.
DE3536953C1 (en) * 1985-10-17 1987-01-29 Thermo Consulting Heidelberg Resorption-type heat converter installation with two solution circuits
US4777802A (en) * 1987-04-23 1988-10-18 Steve Feher Blanket assembly and selectively adjustable apparatus for providing heated or cooled air thereto
US4745768A (en) * 1987-08-27 1988-05-24 The Brooklyn Union Gas Company Combustion-powered refrigeration with decreased fuel consumption

Also Published As

Publication number Publication date
WO1989000665A1 (en) 1989-01-26
JPH02500128A (ja) 1990-01-18
DE3723938C2 (enrdf_load_stackoverflow) 1989-05-03
DE3723938A1 (de) 1989-02-02
US4955931A (en) 1990-09-11
EP0324021A1 (de) 1989-07-19

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