EP1203916A1 - Installation de chauffage avec pompe à chaleur - Google Patents

Installation de chauffage avec pompe à chaleur Download PDF

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Publication number
EP1203916A1
EP1203916A1 EP00811025A EP00811025A EP1203916A1 EP 1203916 A1 EP1203916 A1 EP 1203916A1 EP 00811025 A EP00811025 A EP 00811025A EP 00811025 A EP00811025 A EP 00811025A EP 1203916 A1 EP1203916 A1 EP 1203916A1
Authority
EP
European Patent Office
Prior art keywords
heat
transfer medium
heat transfer
circuit
condenser
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.)
Withdrawn
Application number
EP00811025A
Other languages
German (de)
English (en)
Inventor
Daniel Trüssel
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.)
Kwt Kalte-Warmetechnik AG
Original Assignee
Kwt Kalte-Warmetechnik AG
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 Kwt Kalte-Warmetechnik AG filed Critical Kwt Kalte-Warmetechnik AG
Priority to EP00811025A priority Critical patent/EP1203916A1/fr
Publication of EP1203916A1 publication Critical patent/EP1203916A1/fr
Withdrawn legal-status Critical Current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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers

Definitions

  • the present invention relates to a heat pump heating system a heat transfer medium circuit containing an evaporator, in which the heat transfer medium absorbs heat from the environment, a compressor, with which the heat transfer medium compresses, thereby heated and is promoted in the circuit, a condenser with which the heat transfer medium Heat is removed and fed to a heating circuit and a throttle valve with which the heat transfer medium is expanded before it is supplied to the evaporator mentioned.
  • the use of heat pumps to heat buildings has been known for a long time.
  • the heat pump like the chiller, is a machine that works in the left-handed Carnot cycle between the ambient temperature T 0 and a higher temperature T.
  • Q is the amount of heat given off at the higher temperature T, which can be used for heating and A is the one for implementation electrical or mechanical work necessary for the process.
  • T which can be used for heating
  • A is the one for implementation electrical or mechanical work necessary for the process. The one with today The achievable performance figures are around 3.
  • the heat pump heating systems work all the more economically, ever the temperature of the heat transfer medium is lower, take care that the largest possible heating surfaces, for example in the form of floor or Ceiling heaters are used or the heat pump heating system is formed as an air heater. This is not the case with heating systems for new buildings Problem because the heating surfaces or air ducts are planned and accordingly can be built.
  • the boiler is not simply pumped by a heat pump to be replaced because of a state-of-the-art heat pump either does not provide a sufficiently high flow temperature or one has unsatisfactory efficiency.
  • the compressor can be used to cool the condensate Use cold suction gas to be supplied. But this has the disadvantage that the specific volume of the suction gas increases as a result of heating and consequently the mass flow of the heat transfer medium drawn in by the compressor is reduced.
  • the invention is based on this prior art the task of further improving the efficiency of heat pump heating systems and to propose such a system, the field of application of which is expanded is, so they are particularly suitable as a replacement for conventional boilers suitable.
  • Circuit between the condenser and the throttle valve is a heat exchanger with means for passing the heat transfer medium coming from the condenser arranged as a primary medium that means for branching of a partial flow from the primary medium leaving this heat exchanger it is provided that this branched partial flow through a further throttle valve is passed, being relaxed and cooled, that the heat exchanger also contains means through which the cooled partial stream as a secondary medium is passed through the said heat exchanger, and that the Compressor at a point between the inlet and the outlet for the Heat transfer medium has a further inlet through which the partial flow is fed to the compressor.
  • the advantages of the invention are particularly high achievable Flow temperature in the heating circuit, which is also a good efficiency the system is reached.
  • the compressor can be a screw compressor.
  • a screw compressor can the mentioned further admission particularly easily at a point in the Housing between the two ends of the screw or the Screws be arranged.
  • the further throttle valve can be a regulating throttle, which makes it easier Is possible, the amount of heat transfer medium flowing in the partial flow to regulate or control.
  • the heat pump circuit is an inventive Heating system shown schematically, the heat transfer medium, for example a product known under the trade name "Freon 22", in essentially counterclockwise by those described in more detail below Plant components flow.
  • FIG. 2 is a state diagram of the heat transfer medium in which the logarithm of the pressure is plotted against the enthalpy.
  • the curve shows the saturation pressure for a saturated liquid A, or for the saturated Steam B on.
  • the critical point C is at the apex the transition state of the curve is liquid-vapor.
  • the reference numerals I, II, III, III B , III E , IV E and IV entered in both figures indicate the state of the heat transfer medium at certain points in the system.
  • the medium is gaseous and has a temperature of, for example, -5 ° C.
  • it is compressed adiabatically by the compressor 1, its temperature being increased to, for example, 62 ° C.
  • the heat transfer medium then flows through the condenser 2, in which it is converted into the liquid state with the release of thermal energy.
  • the liquid heat transfer medium still has a temperature of, for example, about 55 ° C.
  • the condenser 2 is flowed through by the heating circuit 3, with which the radiators are connected.
  • the return 4 occurs in this example about 52 ° C in the condenser and is heated to about 60 ° C therein. Thanks This is a relatively high temperature in the flow for heat pump systems 5 can the system according to the invention in the renovation of heating systems instead of a conventional boiler.
  • the liquid heat transfer medium After leaving the evaporator 2, the liquid heat transfer medium passes through a boiler heat exchanger 6, the secondary circuit of which is the boiler circuit 7. In this heat exchanger, the heat content is further extracted from the medium, as is shown by the section III-III B in the diagram, and it is cooled to, for example, to 35 ° C.
  • the liquid heat transfer medium flows into a further heat exchanger, the so-called economizer 10, in which it is further cooled, for example to 15 ° C.
  • the flow of the liquid heat transfer medium leaving the economizer 10 at III E is divided and a partial flow is expanded in a regulating throttle, the heat transfer medium of this partial flow being cooled to, for example, approximately -10 ° C. and partially evaporated.
  • the partially liquid medium stream cooled in this way is passed through the secondary part of the economizer, there causes the aforementioned further cooling of the entire medium stream between points III B and III E and leaves economizer 10 at a temperature of, for example, approximately 2 ° C.
  • the partial flow which is still warmer than the gaseous heat transfer medium drawn in at I by the compressor 1, is fed to the compressor through an inlet which is arranged on the conveying path between the suction port and the outlet.
  • the remaining partial flow of the heat transfer medium is expanded in the throttle valve 11, which corresponds to the distance between points III E and IV E in the diagram. Then the medium gets into the evaporator 13, where it is evaporated while absorbing heat and thus assumes state I, from which the description of the cycle was based.
  • the absorbed in the evaporator 13 by the heat transfer medium Heat comes from the brine circuit 14, through the return 15 the medium flows at about -2 ° C in the evaporator 13 and this through leaves the lead 16 at a temperature of, for example, about -5 ° C.
  • a heat exchanger In the brine circuit is a heat exchanger, not shown, with which the Surrounding heat is extracted.
  • This heat exchanger can, for example as an air heat exchanger, water heat exchanger, geothermal probe or earth register be trained.
  • Curve I, II, III, III B , III E , IV E , IV clearly shows that the measures according to the invention change the specific enthalpy (kJ / kg) in comparison with a cycle according to the prior art I, II, III , IV enlarged and the performance figure of the heat pump is improved.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
EP00811025A 2000-11-02 2000-11-02 Installation de chauffage avec pompe à chaleur Withdrawn EP1203916A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00811025A EP1203916A1 (fr) 2000-11-02 2000-11-02 Installation de chauffage avec pompe à chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00811025A EP1203916A1 (fr) 2000-11-02 2000-11-02 Installation de chauffage avec pompe à chaleur

Publications (1)

Publication Number Publication Date
EP1203916A1 true EP1203916A1 (fr) 2002-05-08

Family

ID=8175006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00811025A Withdrawn EP1203916A1 (fr) 2000-11-02 2000-11-02 Installation de chauffage avec pompe à chaleur

Country Status (1)

Country Link
EP (1) EP1203916A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006122367A1 (fr) * 2005-05-19 2006-11-23 Quantum Energy Technologies Pty Limited Systeme de pompe a chaleur et procede de chauffage d'un fluide
WO2009017968A1 (fr) * 2007-07-27 2009-02-05 Johnson Controls Technology Company Circuit de compression de vapeur économique
AU2006246988B2 (en) * 2005-05-19 2009-12-17 Quantum Energy Technologies Pty Limited Heat pump system and method for heating a fluid
EP2674698A1 (fr) * 2012-06-14 2013-12-18 Cadena Systems AG Installation de pompes à chaleur
CN106196721A (zh) * 2016-07-04 2016-12-07 珠海格力电器股份有限公司 一种喷焓压缩机空调系统及其控制方法
CN110455013A (zh) * 2018-05-08 2019-11-15 上海海立电器有限公司 喷气增焓热泵系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272093A (en) * 1939-10-24 1942-02-03 Gen Motors Corp Refrigerating apparatus
DE823143C (de) * 1949-08-18 1951-11-29 Linde Eismasch Ag Verhuetung des Entstehens groesserer Dampfmengen hinter dem Schwimmerregler von Kaelteanlagen
US4058988A (en) * 1976-01-29 1977-11-22 Dunham-Bush, Inc. Heat pump system with high efficiency reversible helical screw rotary compressor
FR2439371A1 (fr) * 1978-10-16 1980-05-16 Airgel Moyen d'ameliorer les performances des installations frigorifiques ou de pompe de chaleur
DE3029014A1 (de) 1980-07-31 1982-02-25 Alfred 2851 Rechtenfleth Steinforth Verbesserung der leistungszahl von waermepumpen durch unterkuehlung des fluessigen kaeltemittels ohne gleichzeitige ueberhitzung des sauggases
DE3329661A1 (de) * 1982-12-14 1984-06-14 VEB Kombinat Luft- und Kältetechnik, DDR 8080 Dresden Regelung von temperaturen, temperaturdifferenzen bzw. fuellstaenden in kaeltemittelkreislaeufen
DE3439746A1 (de) * 1984-10-26 1986-04-30 Peter 2351 Hasenkrug Koch Unterkuehler fuer eine waermepumpe
US4852366A (en) * 1986-12-15 1989-08-01 Conserve, Inc. Heat pump and system
US6044655A (en) * 1996-08-22 2000-04-04 Denso Corporation Vapor compression type refrigerating system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272093A (en) * 1939-10-24 1942-02-03 Gen Motors Corp Refrigerating apparatus
DE823143C (de) * 1949-08-18 1951-11-29 Linde Eismasch Ag Verhuetung des Entstehens groesserer Dampfmengen hinter dem Schwimmerregler von Kaelteanlagen
US4058988A (en) * 1976-01-29 1977-11-22 Dunham-Bush, Inc. Heat pump system with high efficiency reversible helical screw rotary compressor
FR2439371A1 (fr) * 1978-10-16 1980-05-16 Airgel Moyen d'ameliorer les performances des installations frigorifiques ou de pompe de chaleur
DE3029014A1 (de) 1980-07-31 1982-02-25 Alfred 2851 Rechtenfleth Steinforth Verbesserung der leistungszahl von waermepumpen durch unterkuehlung des fluessigen kaeltemittels ohne gleichzeitige ueberhitzung des sauggases
DE3329661A1 (de) * 1982-12-14 1984-06-14 VEB Kombinat Luft- und Kältetechnik, DDR 8080 Dresden Regelung von temperaturen, temperaturdifferenzen bzw. fuellstaenden in kaeltemittelkreislaeufen
DE3439746A1 (de) * 1984-10-26 1986-04-30 Peter 2351 Hasenkrug Koch Unterkuehler fuer eine waermepumpe
US4852366A (en) * 1986-12-15 1989-08-01 Conserve, Inc. Heat pump and system
US6044655A (en) * 1996-08-22 2000-04-04 Denso Corporation Vapor compression type refrigerating system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006122367A1 (fr) * 2005-05-19 2006-11-23 Quantum Energy Technologies Pty Limited Systeme de pompe a chaleur et procede de chauffage d'un fluide
AU2006246988B2 (en) * 2005-05-19 2009-12-17 Quantum Energy Technologies Pty Limited Heat pump system and method for heating a fluid
WO2009017968A1 (fr) * 2007-07-27 2009-02-05 Johnson Controls Technology Company Circuit de compression de vapeur économique
US8713963B2 (en) 2007-07-27 2014-05-06 Johnson Controls Technology Company Economized vapor compression circuit
EP2674698A1 (fr) * 2012-06-14 2013-12-18 Cadena Systems AG Installation de pompes à chaleur
CN106196721A (zh) * 2016-07-04 2016-12-07 珠海格力电器股份有限公司 一种喷焓压缩机空调系统及其控制方法
CN110455013A (zh) * 2018-05-08 2019-11-15 上海海立电器有限公司 喷气增焓热泵系统

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