EP2180274A2 - Pompe à chaleur et procédé de fonctionnement d'une pompe à chaleur - Google Patents

Pompe à chaleur et procédé de fonctionnement d'une pompe à chaleur Download PDF

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Publication number
EP2180274A2
EP2180274A2 EP09013217A EP09013217A EP2180274A2 EP 2180274 A2 EP2180274 A2 EP 2180274A2 EP 09013217 A EP09013217 A EP 09013217A EP 09013217 A EP09013217 A EP 09013217A EP 2180274 A2 EP2180274 A2 EP 2180274A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
heat
fluid
operating mode
heat pump
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Withdrawn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
EP09013217A
Other languages
German (de)
English (en)
Other versions
EP2180274A3 (fr
Inventor
Gunnar Schmitt
Ghanbar Shirkhani
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.)
Glen Dimplex Deutschland GmbH
Original Assignee
Glen Dimplex Deutschland GmbH
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 Glen Dimplex Deutschland GmbH filed Critical Glen Dimplex Deutschland GmbH
Publication of EP2180274A2 publication Critical patent/EP2180274A2/fr
Publication of EP2180274A3 publication Critical patent/EP2180274A3/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Withdrawn legal-status Critical Current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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/002—Compression machines, plants or systems with reversible cycle not otherwise provided for geothermal
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/003—Indoor unit with water as a heat sink or heat source
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/004—Outdoor unit with water as a heat sink or heat source
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0314—Temperature sensors near the indoor heat exchanger

Definitions

  • the invention relates to a reversibly operating heat pump which can be operated in different operating modes and to a method for operating such a heat pump.
  • a primary fluid is generally conducted in a primary circuit, which transfers heat from a heat source to a heat sink via two heat exchangers connected in the primary circuit.
  • both heat pumps are understood in the narrower sense, which are used for building heating technology for heating / cooling of buildings and / or for the production of hot water, as well as so-called refrigeration systems for generating cold in the industrial / commercial area, for example for cooling at used in industrial production media or industrial / industrial or medical facilities.
  • the two heat exchangers in the primary circuit are used in a conventional manner as an evaporator or as a condenser / condenser for the primary fluid.
  • the direction of the circulated primary fluid can be switched, causing the two heat exchangers to interchange their functions.
  • the heat source used in heating mode evaporator therefore forms a heat sink side capacitor in cooling mode.
  • the heat exchanger used in the heating operation as a heat sink side condenser forms the heat source side evaporator in the cooling mode.
  • heating operation energy is taken from the environment, such as the air, groundwater or soil, as a heat source and fed to a consumer side for heating as a heat sink.
  • the environment forms the heat sink, which absorbs heat from the consumer side, so that cooling takes place on the consumer side, for example of the room air or of liquids.
  • the invention has for its object to provide a reversible heat pump and a method for their operation, with a high efficiency is achieved.
  • a heat pump with the features of claim 1.
  • a reversibly operating heat pump is provided, which is operable in different operating modes, namely in particular a heating operation and a cooling operation.
  • the heat pump has a primary circuit for a primary fluid, in which a heat exchanger is arranged, which is used as a function of the selected operating mode as a condenser or evaporator.
  • the heat exchanger is in each case at the same time part of a secondary circuit for a heat exchanger fluid.
  • the secondary circuit and the heat exchange fluid serve to transfer heat from a heat sink or a heat source into the primary circuit.
  • the secondary circuit here is preferably the consumer-side secondary circuit.
  • the secondary circuit can also be a circulation-side secondary circuit, for example a secondary circuit with brine as the secondary fluid for heat exchange with the ground or groundwater.
  • the heat pump has two secondary circuits, wherein in each of the secondary circuits a switching arrangement is provided, so that in the further secondary circuit depending on the selected operating mode, the flow direction is adjusted by a further heat exchanger such that the primary fluid and another heat exchange fluid in Countercurrent principle are performed.
  • the further secondary circuit is the environmental secondary circuit, in which the secondary fluid is usually brine.
  • the two secondary circuits are preferably formed identically. Alternatively, however, it is also possible that the switching arrangement and the special configuration for reversing the flow direction in the two secondary circuits are designed differently.
  • the switching arrangement is designed as a switching valve and in particular as a four-way switching valve.
  • a reliable switching of the flow rate can be achieved with a comparatively low outlay.
  • the switching valve the flow or flow direction can be switched directly, ie without an intermediate position, as is the case with conventional mixing valves.
  • the heat pump connections for a heat exchange device which acts as a function of the selected operating mode either as a heat sink or as a heat source.
  • this heat exchange device in the heating mode, for example, a device for heating domestic hot water or an air heat exchanger, which is used for heating the room air.
  • the consumer-side heat exchange device is formed in the cooling operation as a heat source, which is for example designed for cooling water or is designed directly as an air-water heat exchanger as a cooling fan.
  • the heat exchange device is designed, for example, as a guided through the bottom heat exchanger tube assembly or as a special heat exchanger for heat exchange with groundwater.
  • the heat pump is now designed such that, independently of the respective operating mode, the direction of flow of the secondary fluid through the heat exchanger device is the same. That at a respective connection, either the flow or the return of the heat exchange device is to be connected regardless of the operating mode set in each case.
  • This allows to use such a heat pump as a replacement in an existing plant.
  • the heat exchanger devices on the consumer side or on the environmental side can be acted upon with corresponding circulating pumps in a conventional manner.
  • a first partial circuit of the secondary circuit is formed between the heat exchanger of the primary circuit and the terminals, in which the switching arrangement is arranged.
  • the switching arrangement is therefore preferably arranged within the heat pump designed as a structural unit.
  • Such a heat pump is characterized in that all components that are necessary for their operation, are integrated within a common housing and that only the consumer-side or environmental pipes must be connected. Further installation effort does not exist.
  • the switching application can also be mounted outside the assembly.
  • each operating mode is associated with one of the temperature sensors and the temperature measured by this temperature sensor for controlling the heat pump operation in the operating mode is used, which is assigned to the respective temperature sensor.
  • the temperature sensors are in this case preferably arranged between the switching arrangement and the heat exchanger. This measure ensures that, regardless of the respectively set operating mode, the temperature suitable for regulating and controlling the heat pump operation is detected in each case.
  • the object is further achieved according to the invention by a method for operating a heat pump with the features of claim 7.
  • the advantages and preferred embodiment cited with regard to the heat pump are to be transferred analogously to the method.
  • a heat pump system 2 according to the Fig. 1 and 2 comprises as a central component, a heat pump 4, which is usually designed as a structural unit, and which is supplied, for example ready for connection to the end user.
  • the heat pump 4 comprises a primary circuit 6, in which a primary fluid P is circulated.
  • the primary circuit 6 has a first consumer-side heat exchanger 8 and a second, environmental-side heat exchanger 10. Each of these two heat exchangers 8,10 is used for heat exchange with a respective heat exchanger or secondary fluid S1, S2 of a consumer-side secondary circuit 12 and an environmental secondary circuit 14. In each of the two secondary circuits 12,14 is provided as a four-way switching valve 16 switching arrangement , This is connected between the respective heat exchanger 8,10 and two output-side terminals 18A, B, respectively.
  • the primary circuit 6 comprises further components, which are not shown in more detail but are known per se and are partly necessary, such as, for example, a compressor and a throttle for compressing or relaxing the primary fluid P.
  • the individual fluids P, S1, S2 are conventional fluids used for such reversible heat pump systems 2.
  • the secondary fluid S2 for example, a brine
  • the secondary fluid S1 is usually water.
  • the secondary fluids S1, S2 are permanently in the liquid state, except for air as a secondary fluid.
  • a temperature sensor 20A, B are further provided on the supply lines to the consumer-side heat exchanger 8, which are provided for measuring a temperature T1 and a temperature T2 of the secondary fluid S1 in the respective Rohrieitungsabites.
  • the secondary circuits 12,14 are in two partial circuits, namely a trained within the heat pump 4 first partial circuit 12A, 14A and formed after the switching valve 16 second partial circuit 12B, 14B divided.
  • the second partial circuits 12 B, 14 B are formed substantially outside the heat pump and each form a circulation circuit in which the provided by the heat pump 4 heated or cooled medium is circulated.
  • a circulating pump 22 or a heat exchanger device 24A on the consumer side and a heat exchanger device 24B on the environmental side are respectively arranged in the second partial circuit 12B, 14B.
  • heating operation of the environmental heat exchanger 10 acts as an evaporator in which the primary fluid P is vaporized by transfer of heat from the environment.
  • the consumer-side heat exchanger 8 is used in this case as a condenser / Verfiüssiger in which the heat is transferred from the primary fluid P to the secondary fluid S1, so that the primary fluid P is re-liquefied. Operation and sequence of such a heat pump 4 are known per se.
  • the heated water in the condenser 10 of the heat exchanger device 24 A is supplied and used there, for example, for heating domestic water and / or heating water.
  • the switching valve 16 is switched such that the secondary fluid S1 in the first partial circuit 12A occupies a direction and thus a flow direction through the condenser 8, which is chosen such that the secondary fluid S1 and the primary fluid P operate countercurrently through the condenser 8 flow.
  • the switching valve 16 is switched on the environmental side, so that the evaporator 10 is operated in countercurrent principle.
  • Fig. 2 now the cooling operation is shown, in which the primary fluid P flows in the opposite direction.
  • the two changeover valves 16 are now connected in such a way that the flow direction of the secondary fluid S1, S2 has also changed in the respective partial circuit 12A, 14A.
  • the remains Flow direction in the second partial circuits 12B, 14B is the same, therefore, does not change depending on the operating mode set in each case.
  • an air-primary fluid heat exchanger is provided as the environmental side heat exchanger 10, which removes the heat from the ambient air (or in the ambient air gives off the heat), so from time to time defrosting this environmental heat exchanger 10 due to Condensation of humidity on heat exchanger surfaces required.
  • the primary fluid P is the same as in the cooling operation according to FIG Fig. 2 guided.
  • no environmental secondary circuit 14 is formed.
  • the control of the heat pump system 2 is carried out via a control device 26.
  • This control device 26 also allows manual operation, for example, to specify a desired room temperature or to switch between the heating and cooling operation. Depending on these manually specified parameters otherwise the control of the heat pump operation is fully automatic.
  • the controlled variable used here is the return temperature, that is to say the temperature T2.
  • the flow temperature which is also formed by the temperature T2 due to the switching.
EP09013217.6A 2008-10-25 2009-10-20 Pompe à chaleur et procédé de fonctionnement d'une pompe à chaleur Withdrawn EP2180274A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008053236.3A DE102008053236B4 (de) 2008-10-25 2008-10-25 Wärmepumpe und Verfahren zum Betrieb einer Wärmepumpe

Publications (2)

Publication Number Publication Date
EP2180274A2 true EP2180274A2 (fr) 2010-04-28
EP2180274A3 EP2180274A3 (fr) 2015-01-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013217.6A Withdrawn EP2180274A3 (fr) 2008-10-25 2009-10-20 Pompe à chaleur et procédé de fonctionnement d'une pompe à chaleur

Country Status (2)

Country Link
EP (1) EP2180274A3 (fr)
DE (1) DE102008053236B4 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331640A (ja) * 1989-06-28 1991-02-12 Mitsubishi Electric Corp 空気調和装置
WO2008117408A1 (fr) * 2007-03-27 2008-10-02 Mitsubishi Electric Corporation Dispositif de pompe à chaleur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3414825B2 (ja) 1994-03-30 2003-06-09 東芝キヤリア株式会社 空気調和装置
ITMC20030006A1 (it) 2003-01-27 2004-07-28 Tecnocasa Srl Dispositivo idraulico a gestione elettronica

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331640A (ja) * 1989-06-28 1991-02-12 Mitsubishi Electric Corp 空気調和装置
WO2008117408A1 (fr) * 2007-03-27 2008-10-02 Mitsubishi Electric Corporation Dispositif de pompe à chaleur

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Anonymous: "Dimplex - Technik erklärt - Funktionsweise der reversiblen Wärmepumpe", , 14. März 2008 (2008-03-14), XP055154193, Gefunden im Internet: URL:https://web.archive.org/web/2008031407 1831/http://www.dimplex.de/animationen/kre islauf2.php [gefunden am 2014-11-20] *
RENEDO C J ET AL: "Optimum design for reversible water-water heat pumps", ENERGY AND BUILDINGS, LAUSANNE, CH, Bd. 38, Nr. 10, 3. März 2006 (2006-03-03), Seiten 1240-1247, XP027939140, ISSN: 0378-7788 [gefunden am 2006-10-01] *

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Publication number Publication date
DE102008053236A1 (de) 2010-04-29
DE102008053236B4 (de) 2020-07-09
EP2180274A3 (fr) 2015-01-07

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