EP0046196A2 - Procédé pour le fonctionnement d'une installation de chauffage à absorption monovalente et alternative - Google Patents

Procédé pour le fonctionnement d'une installation de chauffage à absorption monovalente et alternative Download PDF

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Publication number
EP0046196A2
EP0046196A2 EP81105453A EP81105453A EP0046196A2 EP 0046196 A2 EP0046196 A2 EP 0046196A2 EP 81105453 A EP81105453 A EP 81105453A EP 81105453 A EP81105453 A EP 81105453A EP 0046196 A2 EP0046196 A2 EP 0046196A2
Authority
EP
European Patent Office
Prior art keywords
heat
refrigerant
solvent
condenser
heating medium
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
EP81105453A
Other languages
German (de)
English (en)
Other versions
EP0046196B1 (fr
EP0046196A3 (en
Inventor
Paul Dipl.-Ing. Heimbach
Peter Goebel
Franz Gruber
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.)
Buderus AG
Original Assignee
Buderus 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 Buderus AG filed Critical Buderus AG
Priority to AT81105453T priority Critical patent/ATE9400T1/de
Publication of EP0046196A2 publication Critical patent/EP0046196A2/fr
Publication of EP0046196A3 publication Critical patent/EP0046196A3/de
Application granted granted Critical
Publication of EP0046196B1 publication Critical patent/EP0046196B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • 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
    • F25B30/04—Heat pumps of the sorption type

Definitions

  • the invention relates to a method and a device for operating a monovalent alternative absorption heating system, which operates above a predetermined ambient temperature in heat pump mode and at lower temperatures in direct heating mode, with a refrigerant circuit in which a refrigerant is expelled from a refrigerant-rich solvent, liquefied, by supplying heat from the Environment evaporates and is absorbed by low-refrigerant solvent, as well as with a heating medium circuit, in which a heating medium is heated by heat exchange with condensing refrigerant and by absorbing heat of absorption.
  • a method of this type is used, for example, for space and / or process water heating in single and multi-family houses.
  • the term "mnnovalent alternative" means that the absorption heating system uses only one type of primary energy works as a heat pump up to a preselectable lowest outside air temperature, and is operated below this temperature by direct heat transfer from the same primary energy source to the heating medium.
  • the object of the present invention is therefore to develop a method of the type mentioned at the outset which is distinguished by low heat losses and better heating output.
  • the heating medium in direct heating mode, is bypassed by the refrigerant condenser and absorber via a heat exchanger separate from the refrigerant condenser and is heated there by direct supply of combustion heat in the heat generator or by heat exchange with low-refrigerant solvent.
  • heating of the heating medium in direct heating mode is carried out in a heat exchanger provided exclusively for this purpose.
  • the separate heat exchanger is either flowed through by a low-refrigerant solvent or it is arranged in the heat generator and the combustion heat generated in the burner of the heat generator is fed directly to it.
  • the object of the invention achieves the advantage that the heat transfer to the heating medium is carried out under optimal conditions.
  • heating of the absorber and the refrigerant condenser can also be avoided in this way. The heat losses in the system are thus reduced.
  • the low-refrigerant solvent is in a temperature changer after its heat exchange with the heating medium Bring heat exchange with refrigerant-rich solvent. With this procedure, the above-mentioned excessive cooling of the low-refrigerant solvent can be prevented.
  • the heating medium is additionally heated by heat exchange with steam flowing out of a rectifier in a return condenser and / or with flue gas withdrawing from the heat generator.
  • devices for supplying heat from the environment to the refrigerant evaporator and absorber are switched off in direct heating mode.
  • Such devices are, for example, fans for supplying ambient air and valves for preventing the supply of refrigerant from the evaporator to the absorber.
  • a further refinement of the subject matter of the invention has proven to be expedient, according to which the switching and control processes required when switching from heat pump to direct heating mode and vice versa are controlled by a central control unit.
  • a device for carrying out the method according to the invention comprises a refrigerant circuit which contains an expeller, a condenser, an evaporator and an absorber, and a heating medium circuit which is in heat-exchanging connection with the condenser and the absorber, and is characterized by a separate heat exchanger in the heating medium supply line, which has a further flow cross section for low-refrigerant solvent, or is arranged in the heat generator.
  • the separate heat exchanger is located outside the heat generator, in the second case it is located near the heat generator in the heat generator.
  • the heat generator in heat pump and direct heating mode is alternatively assigned to the expeller or the separate heat exchanger.
  • Rotatable flaps are arranged between the heat generator and the expeller or the heat exchanger, which, depending on the position, cause heat to be transferred only to the expeller or only to the heat exchanger.
  • a preferred embodiment of the device according to the invention is characterized by a rectifier for rectifying the refrigerant-solvent / vapor mixture expelled from the solvent, with a return condenser connected to the heating medium supply line.
  • a flue gas cooler is arranged in the heating medium feed line after the return condenser in the flue gas stream of the heat generator.
  • Return condenser and flue gas cooler are used for additional heating of the heating medium.
  • a bypass line for the refrigerant which bypasses the condenser and the absorber, is provided.
  • the absorption heating system shown in FIG. 1 has a heat generator 1 which is equipped with a heat generator 2, for example an atmospheric gas burner 2.
  • the absorption heating system contains a solvent circuit which in the direction of flow of the solvent contains a solvent pump 3, a temperature changer 4, a rectifier 5, an expeller 6 arranged in the heat generator 1, a separator 7 and an absorber 8.
  • a refrigerant circuit is also provided, which begins in the vapor space of the separator 7 and leads via the head of the rectifier 5, a condenser 10, a cold exchanger 22 and an evaporator 11 designed as an air cooler to the absorber 8 and passes there into the solvent circuit.
  • a mixture of ammonia and water is used as the refrigerant-solvent mixture.
  • This mixture is removed from the bottom of the absorber 8, brought into heat exchange with low-refrigerant solvent in the temperature changer 4 and then fed to the rectifier 5.
  • this gas mixture is concentrated in refrigerant, while a refrigerant-rich solvent accumulates in the sump of the rectifier 5. That cold Medium-rich solvent is fed to the expeller 6, heated there by supplying heat of combustion and brought to high pressure, and separated in the subsequent separator 7 into a refrigerant-rich gas fraction and a liquid fraction containing low-refrigerant solvent.
  • the liquid fraction is passed through a multi-way solenoid valve 20, which releases the temperature changer 4 during heat pump operation.
  • the low-refrigerant solvent is brought into heat exchange with a refrigerant-rich solvent and is then added to the head of the absorber 8 via a device which regulates the flow rate as a function of the liquid level in the sump of the rectifier 5, for example a float regulator.
  • the absorption heating system contains a heating medium circuit in which a heating medium is circulated by a circulation pump 12.
  • the heating medium is guided in heat pump operation via a multi-way solenoid valve 19 via heating coils 14 and 15 in the condenser 10 and in the absorber 8, where it absorbs heat.
  • the heating medium is further heated in a return cooler 9 arranged in the head of the rectifier 5 and in a flue gas cooler 16 arranged in the flue gas outlet of the heat generator 1.
  • the heating medium reaches the circulation pump 12 via a heat exchanger 18 according to the invention, from where it is fed to a consumer group 13, in which it emits heat.
  • the multi-way solenoid valve 20 is switched when the heating is switched to direct heating mode, so that the low-refrigerant hot solvent is passed into the heat exchanger 18 and is brought into heat exchange with the heating medium there.
  • the separate heat exchanger 18 is dimensioned according to the heat exchange conditions that occur and therefore enables an optimization of the heating output the plant. After flowing through the separate heat exchanger 18, the low-refrigerant solvent is passed into the temperature changer 4 as in heat exchange operation.
  • All switching operations are controlled by a central control unit 23 in accordance with a preprogrammed function sequence for direct heating or heat pump operation.
  • encoder data e.g. Signals from a temperature sensor fed (arrow 25), which are then converted into corresponding switching signals (arrow 26).
  • the energy supply to the control unit 23 is symbolized by an arrow 27.
  • FIG. 2 shows a heat generator 1 for the method according to the invention, the separate heat exchanger 28 being arranged in the heat generator 1.
  • the heat generator 1 contains a heat generator, in the example shown an atmospheric gas burner 2. Above the burner 2, on the one hand, the expeller 6 and, on the other hand, the heat exchanger 28 according to the invention are arranged.
  • the heat exchanger 28 consists of several heating coils, which are arranged around the expeller over the inner circumference of the heat generator 1.
  • the expeller 6 and the heat exchanger 28 are separated from one another by a jacket 29. At the lower edge of the jacket 29 flaps 30 are arranged, which depending on the operating state of the heating system between burner 2 and expeller 6 (in direct heating mode) or heat exchanger 28 (heat pump mode, dashed line) are placed.
  • the heat released in the heat generator is transferred directly to the heat exchanger 28 in direct heating mode.
  • the flue gas cooler 16 is located in the flue gas stream (arrow 33) withdrawing from the heat generator 1.
  • solenoid valve 32 which is also controlled by the central control unit 23 (FIG. 1), either directly into the flue gas cooler 16 (in the case of heat pump operation) or first into the heat exchanger 28 passed and introduced after its heating between the solenoid valve 32 and the flue gas cooler 16 in the heating medium flow line (direct heating mode).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP81105453A 1980-08-16 1981-07-13 Procédé pour le fonctionnement d'une installation de chauffage à absorption monovalente et alternative Expired EP0046196B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105453T ATE9400T1 (de) 1980-08-16 1981-07-13 Verfahren zum betreiben einer monovalent alternativen absorptionsheizanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803031033 DE3031033A1 (de) 1980-08-16 1980-08-16 Verfahren und vorrichtung zum betreiben einer monovalent alternativen adsorptionsheizanlage
DE3031033 1980-08-16

Publications (3)

Publication Number Publication Date
EP0046196A2 true EP0046196A2 (fr) 1982-02-24
EP0046196A3 EP0046196A3 (en) 1982-04-14
EP0046196B1 EP0046196B1 (fr) 1984-09-12

Family

ID=6109775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105453A Expired EP0046196B1 (fr) 1980-08-16 1981-07-13 Procédé pour le fonctionnement d'une installation de chauffage à absorption monovalente et alternative

Country Status (5)

Country Link
US (1) US4410134A (fr)
EP (1) EP0046196B1 (fr)
JP (1) JPS57127761A (fr)
AT (1) ATE9400T1 (fr)
DE (2) DE3031033A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192369A2 (fr) * 1985-02-08 1986-08-27 British Gas plc Installation d'une pompe à chaleur
CN102840719A (zh) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 一种太阳能空气源吸收式热泵装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432888A1 (de) * 1984-09-07 1986-03-13 Borsig Gmbh, 1000 Berlin Absorptionskaelteanlage mit raeumlich getrenntem hochdruck- und niederdruckteil
US5367884B1 (en) * 1991-03-12 1996-12-31 Phillips Eng Co Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump
US5271235A (en) * 1991-03-12 1993-12-21 Phillips Engineering Company High efficiency absorption cycle of the gax type
US5570584A (en) * 1991-11-18 1996-11-05 Phillips Engineering Co. Generator-Absorber heat exchange transfer apparatus and method using an intermediate liquor
US5255528A (en) * 1992-06-03 1993-10-26 Kim Dao Method and apparatus for recuperating waste heat in absorption systems
US5579652A (en) * 1993-06-15 1996-12-03 Phillips Engineering Co. Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump
US5490393A (en) * 1994-03-31 1996-02-13 Robur Corporation Generator absorber heat exchanger for an ammonia/water absorption refrigeration system
US5782097A (en) * 1994-11-23 1998-07-21 Phillips Engineering Co. Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump
JPH10160283A (ja) * 1996-11-29 1998-06-19 Sanyo Electric Co Ltd 吸収式ヒートポンプ装置
AT408805B (de) * 1999-05-25 2002-03-25 Vaillant Gmbh Sorptionsmaschine
JP2003075017A (ja) * 2001-09-04 2003-03-12 Sanyo Electric Co Ltd 排熱利用冷凍システム
JP2007120811A (ja) * 2005-10-26 2007-05-17 Tokyo Gas Co Ltd 吸収ヒートポンプ
JP2007120810A (ja) * 2005-10-26 2007-05-17 Tokyo Gas Co Ltd 吸収ヒートポンプ
US20100229594A1 (en) * 2008-12-04 2010-09-16 Donald Charles Erickson Chilling economizer
US9341400B2 (en) * 2010-08-06 2016-05-17 Braun Intertec Geothermal, Llc Mobile hydro geothermal testing systems and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659641A1 (de) * 1976-12-30 1978-07-13 Christian Dipl Ing Schneider Gas- oder oelbetriebene heizanlage zur waermeerzeugung
DE2748415A1 (de) * 1977-10-28 1979-05-03 Nederlandse Gasunie Nv Bimodales heizsystem und verfahren zum heizen
DE2758773A1 (de) * 1977-12-29 1979-07-05 Schneider Kg Ask A Bivalente heizanlage
DE2838715A1 (de) * 1978-09-02 1980-03-13 Vaillant Joh Gmbh & Co Sorptionswaermepumpe
DE2854055A1 (de) * 1978-12-14 1980-07-03 Linde Ag Verfahren zum erhitzen eines waermetraegers mit einer absorptionswaermepumpe
DE2856767A1 (de) * 1978-12-29 1980-07-17 Alefeld Georg Absorptions-waermepumpe veraenderbarer ausgangs-waermeleistung
EP0036981A2 (fr) * 1980-03-28 1981-10-07 Buderus Aktiengesellschaft Procédé pour le fonctionnement d'une installation de chauffage à absorption

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803118B2 (de) * 1978-01-25 1980-07-31 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Verfahren zur Beheizung mit einer Absorptionswärmepumpenanlage und Vorrichtung zur Durchführung des Verfahrens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659641A1 (de) * 1976-12-30 1978-07-13 Christian Dipl Ing Schneider Gas- oder oelbetriebene heizanlage zur waermeerzeugung
DE2748415A1 (de) * 1977-10-28 1979-05-03 Nederlandse Gasunie Nv Bimodales heizsystem und verfahren zum heizen
DE2758773A1 (de) * 1977-12-29 1979-07-05 Schneider Kg Ask A Bivalente heizanlage
DE2838715A1 (de) * 1978-09-02 1980-03-13 Vaillant Joh Gmbh & Co Sorptionswaermepumpe
DE2854055A1 (de) * 1978-12-14 1980-07-03 Linde Ag Verfahren zum erhitzen eines waermetraegers mit einer absorptionswaermepumpe
DE2856767A1 (de) * 1978-12-29 1980-07-17 Alefeld Georg Absorptions-waermepumpe veraenderbarer ausgangs-waermeleistung
EP0036981A2 (fr) * 1980-03-28 1981-10-07 Buderus Aktiengesellschaft Procédé pour le fonctionnement d'une installation de chauffage à absorption

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192369A2 (fr) * 1985-02-08 1986-08-27 British Gas plc Installation d'une pompe à chaleur
US4665711A (en) * 1985-02-08 1987-05-19 Ic Gas International Ltd. Heat pump systems
EP0192369A3 (en) * 1985-02-08 1987-10-14 Ic Gas International Limited Improvements in and relating to heat pump systems improvements in and relating to heat pump systems
CN102840719A (zh) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 一种太阳能空气源吸收式热泵装置

Also Published As

Publication number Publication date
DE3031033A1 (de) 1982-05-06
EP0046196B1 (fr) 1984-09-12
ATE9400T1 (de) 1984-09-15
EP0046196A3 (en) 1982-04-14
US4410134A (en) 1983-10-18
JPS57127761A (en) 1982-08-09
DE3166025D1 (en) 1984-10-18

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