EP3222935A1 - Système de climatisation destiné à refroidir et/ou à chauffer un bâtiment - Google Patents

Système de climatisation destiné à refroidir et/ou à chauffer un bâtiment Download PDF

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Publication number
EP3222935A1
EP3222935A1 EP17161613.9A EP17161613A EP3222935A1 EP 3222935 A1 EP3222935 A1 EP 3222935A1 EP 17161613 A EP17161613 A EP 17161613A EP 3222935 A1 EP3222935 A1 EP 3222935A1
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EP
European Patent Office
Prior art keywords
circuit
heat exchanger
heat
air conditioning
conditioning system
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
EP17161613.9A
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German (de)
English (en)
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EP3222935B8 (fr
EP3222935B1 (fr
Inventor
Moritz Stache
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.)
Swegon Germany GmbH
Original Assignee
Uponor Innovation AB
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
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Publication of EP3222935A1 publication Critical patent/EP3222935A1/fr
Application granted granted Critical
Publication of EP3222935B1 publication Critical patent/EP3222935B1/fr
Publication of EP3222935B8 publication Critical patent/EP3222935B8/fr
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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
    • F25B25/005—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
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0403—Refrigeration circuit bypassing means for the condenser
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/21—Reduction of parts
    • 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series

Definitions

  • the invention relates to an air conditioning system for cooling and / or heating a building.
  • Air conditioning systems for cooling and / or heating a building are known in the art. Such systems typically have multiple circuits that perform different functions.
  • such an air conditioning system comprises a heating circuit for heating the building and a cooling circuit for cooling the building.
  • such a system comprises at least one refrigerant circuit which thermally communicates with the heating circuit and the cooling circuit.
  • a source / sink circuit is typically provided to introduce thermal energy into the system for heating the building or dissipating heat energy from the system to accomplish the cooling function.
  • Another component of such systems may be a circuit that dissipates excess heat energy via a heat sink.
  • An object of the invention is to provide an air conditioning system which contributes to a reduction of a refrigerant to be used.
  • the air conditioning system may also be referred to as an arrangement for cooling and / or heating a building.
  • the air conditioning system has a heat pump cycle, a heating circuit and a surplus circuit.
  • the air conditioning system has a heat exchanger which is simultaneously fluidically connected in the heat pump cycle, the heating circuit and the excess cycle.
  • heat energy that is transported in the heat pump cycle to the heat exchanger can be discharged through the heat exchanger on the one hand to the heating circuit and on the other hand to the excess circuit , The heat transfer can occur simultaneously when operating both the heating circuit and the excess circuit.
  • This has the advantage that two heat exchangers are not necessary, one of which is integrated into the heat pump cycle and the heating circuit and another heat exchanger in the heat pump cycle and the excess cycle.
  • the heat pump cycle to a refrigerant for the heat transfer.
  • the heat pump cycle can also be referred to as a refrigerant circuit. Due to the described heat exchanger, a saving of refrigerant is contributed.
  • the heating circuit and the excess circuit each comprise water or a water-glycol mixture for heat transport.
  • a heat transport medium of the two circuits is water.
  • the heat exchanger has three channels, wherein a channel in the series with the heat pump circuit, a channel in series with the heating circuit and a channel in series with the excess circuit is fluidly coupled.
  • the way to fluidly connect the channels to the respective circuits and to use them in the interior of the heat exchanger with different fluids makes it possible to provide only one heat exchanger instead of two heat exchangers in the air conditioning system.
  • the heat exchanger is a plate capacitor having three channels for connection to the heat pump cycle, the heating circuit and the excess circuit. This construction of the heat exchanger provides efficient separation between the various circuits described, thus allowing the replacement of another series-connected heat exchanger.
  • the channels are connected analogously to the top.
  • the heat exchanger is a dual heat exchanger or a dual capacitor.
  • a dual heat exchanger or dual condenser is normally used to be integrated in two refrigerant circuits or heat pump circuits, and a water cycle.
  • the heat exchanger is used with a refrigerant circuit and two fluidic circuits, in particular hydraulic circuits.
  • the advantages described above are made possible.
  • Another advantage of this condenser is that a heat transfer surface is increased for the refrigerant circuit compared to a normal capacitor, whereby, for example, a condensing temperature can be reduced and the efficiency or efficiency of the heat exchanger can be improved, for example by three to four percent.
  • the refrigerant charge capacity is reduced, for example, up to 30 percent.
  • a refrigerant tank volume can be reduced.
  • maintenance intervals due to the F-gas regulation can be reduced, according to which, for example, leak tests must take place.
  • FIG. 1 shows an embodiment of an air conditioning system in a schematic overview.
  • the schematic overview of the air conditioning system can also be referred to as a pipe installation scheme.
  • the air conditioning system is used for heating and cooling of buildings and has a plurality of circuits that are directly or indirectly related to each other, thermally communicate directly or indirectly with each other and described below.
  • the air conditioning system may also be referred to as an arrangement for heating and / or cooling a building. It should be mentioned in advance that not all the details of the air conditioning system 1, as they are in FIGS. 1 and 2 are apparent, as they are familiar to the expert.
  • the air conditioning system 1 has a heating circuit 2, a heat pump with a heat pump circuit 3, a surplus circuit 4, a source / drain circuit 5 and a cooling circuit 6. All circuits are thermally coupled to each other via heat exchangers and have pipelines, which are each traversed by a heat transfer medium.
  • the source / drain circuit 5 will be referred to as the source circuit 5 for the sake of simplicity.
  • the heating circuit 2, the heat pump cycle 3 and the cooling circuit 6 are closed circuits that are not fluidly coupled with the other circuits mentioned.
  • the heating circuit 2 and the cooling circuit 6 have as Heat transport medium to water, which flows through the piping of these circuits.
  • the excess circuit 4, the cooling circuit 6 and / or the heating circuit 2 as a heat transport medium having a water-glycol mixture.
  • the heat pump cycle 3 has as a heat transport medium, a refrigerant, which is why the heat pump cycle 3 can also be referred to as a refrigerant circuit.
  • the heat pump cycle 3 is part of a heat pump, as will be described in more detail later.
  • the source circuit 5, the excess circuit 4, the heating circuit 2 and the cooling circuit 6 each have a pump P1 to P4, which are designed as circulating pumps and actuate the circuits, for example, ensure a flow through the circuits.
  • the heat pump cycle 3 has a compressor 8, also called compressor, which ensures the flow through this circuit.
  • the air conditioning system 1 has a first heat exchanger W1, which may be referred to as a cooling heat exchanger.
  • the first heat exchanger 1 is fluidly integrated into the cooling circuit 6 and the source circuit 5.
  • the first heat exchanger W1 is fluidically connected in the cooling circuit 6 and the source / drain circuit 5, so that a heat transfer between these two circuits can be accomplished when the heat transfer media of both circuits flow through the first heat exchanger W1.
  • the air conditioning system 1 has a second heat exchanger W2, which operates as an evaporator.
  • the second heat exchanger W2 is in the source circuit 5 and the heat pump cycle 3rd switched, so that as above a heat transfer between the source circuit 5 and the heat pump cycle 3 is possible when both circuits are operated.
  • a third heat exchanger W3 is provided analogously to above, which can also be referred to as a heating heat exchanger. This is fluidly connected in the heating circuit 2 and the heat pump circuit 3.
  • a fourth heat exchanger W4 which can also be referred to as a surplus heat exchanger, is connected in a fluid manner into the heat pump cycle 3 and the excess circuit 4 analogously to the top.
  • the air conditioning system 1 which in particular from the FIG. 1 are to be derived are not explained with the exception of the following description.
  • one or more further circuits may be present.
  • the circuits described have multiple sub-circuits, which can be switched depending on the needs and control of the air conditioning system 1.
  • one or more valves are provided, which switch different subcircuits according to their position.
  • Other details which are not described relate, for example, to sensors, sensors, control devices, pressure relief valves, expansion valves or the like.
  • heat energy of a source 7, which can also act as a sink 7 is supplied to the second heat exchanger 2 for evaporating the refrigerant of the heat pump cycle 3.
  • a source 7 which can also act as a sink 7 is supplied to the second heat exchanger 2 for evaporating the refrigerant of the heat pump cycle 3.
  • the source / sink 7 is it in the exemplary embodiment to geothermal energy.
  • Other sources and / or sinks are alternatively also conceivable, such as air, ice storage, recooling, groundwater, sewage, rivers, lakes or others.
  • the heat transport medium water or a water-glycol mixture of the source circuit 5 is supplied by means of the pump P1 from the source 7 via a first valve 1 and a second valve V2 to the second heat exchange W2, wherein the first heat exchanger W1 is not flowed through , After flowing through the second heat exchanger W2, the fluid returns to the source or sink. 7
  • Heat energy is supplied to the refrigerant of the heat pump cycle 3 via the second heat exchanger W2, so that the refrigerant can evaporate.
  • the vaporized refrigerant is supplied to a compressor 8, in which the refrigerant is compressed.
  • the temperature and the pressure of the refrigerant increase.
  • the refrigerant is further supplied to the third heat exchanger W3 in which the heat energy of the refrigerant is at least partially transferred to the heating circuit 2.
  • the third pump P3 is in operation, which circulates the heat transport medium water of the heating circuit 2.
  • the refrigerant which has given off the heat in the third heat exchanger W3, continues to flow to the fourth heat exchanger W4 and flows through it. Then the refrigerant via an expansion valve back to the second heat exchanger W2, where the process begins again.
  • a temperature of the source 7 is raised by the heat pump to a usable for the building temperature level and the heating circuit 2 (with the required flow temperature) provided
  • the heat transfer medium of the source circuit 5 circulates in a partial cycle by operating the pump P1 without passing through the source / sink 7.
  • the heat transport medium flows to the first heat exchanger W1.
  • the heat transport medium flows via the second valve V2 to the second heat exchanger W2. Subsequently, the heat transport medium flows back to the first valve V1.
  • the cooling circuit 6 is activated by the fourth pump P4 circulating the heat transport medium. During cooling, the cooling circuit 6 absorbs heat from the building and releases it via the first heat exchanger 1 to the subcircuit of the source circuit 5 just described. This heat is emitted analogously to the top via the second heat exchanger W2 to the heat pump circuit 3, which is operated analogously to the top. In contrast to the operating mode heating, the heating circuit 2 is not actuated or operated, so that the heat can not be released via the heat exchanger 3 to the heating circuit 2. Rather, the heat energy of the refrigerant is discharged via the fourth heat exchanger W4 to the excess circuit 4 and the source or sink 7 are supplied. The source / sink 7 ultimately absorbs this heat energy and can deliver it. In this case, the pump P2 of the excess circuit 4 is activated, which operates the excess circuit 4 and circulates the water or the water-glycol mixture.
  • a temperature level of the source / sink 7 is insufficient for a direct cooling operation (see below), so that a Heat pump operation is necessary and the source, such as geothermal, is used as a sink 7.
  • the heat pump cycle 3 is not in operation.
  • the heat of the cooling circuit 6 is discharged via the first heat exchanger W1 the source circuit 5, which is formed and switched analogous to above as a partial circuit that the heat transport medium flows through the source / drain 7 and the first heat exchanger W1 and the second heat exchanger W2.
  • the heat energy taken from the cooling circuit 6 is thus delivered to the source / sink 7.
  • source 7 is used as a sink.
  • a control checks whether the temperature level of the source / sink 7 is sufficient for the natural cooling. If this is the case, the recovered cold of the source 7 is provided directly, without operation of the heat pump, for the cooling circuit 6 available. If the source / sink 7 for natural cooling is exhausted, such as geothermal energy, the procedure described above is followed by "cooling".
  • the operating modes described above can also be used in combination, so that one part of the building can be heated, for example, and another part of the building can be cooled.
  • the source / drain circuit 5 is connected as a partial circuit such that the heat transport medium flows through both the well 7 and the first heat exchanger W1 and the second heat exchanger W2.
  • the two cooling and heating circuits 2, 6 are operated independently. If heating and cooling are required at the same time, it is checked whether the building has a heat demand or a heat supply. Depending on an energy balance and a temperature level of the source 7, this is used as a source or sink.
  • the circuit of the pumps P1 to P4, the valves V1, V2 and / or other elements of the air conditioning system 1 can be done automatically via one or more control devices or control devices. Additionally or alternatively, all or individual of the aforementioned elements can also be set manually.
  • the controllers have suitable means for making the desired adjustments.
  • the heat pump cycle 3 is fluidically coupled to three heat exchangers W2, W3 and W4.
  • an efficiency of the air conditioning system 1 is based on FIG. 2 an embodiment of the invention described in which instead of the third and fourth heat exchanger W3, W4 a dual capacitor W5 is provided.
  • the air conditioning system 10 according to FIG. 2 is essentially analogous to that based on FIG. 1 constructed climate control system 1, with the difference that the fourth heat exchanger W4 is omitted for coupling with the excess circuit 4.
  • the third heat exchanger W3 of the basis of FIG. 1 described air conditioning system 1 is through the dual heat exchanger W5 which is a three-terminal plate capacitor and may also be referred to as a dual capacitor.
  • Such a dual heat exchanger W5 is normally intended for use with two refrigerant circuits and one water circuit.
  • dual condensers which can also be referred to as dual heat exchangers
  • two refrigeration circuits act on a water cycle (as condenser and evaporator design).
  • a refrigeration circuit can be easily switched off.
  • this heat exchanger design also provides operational safety, since 50% of the power is still available if one compressor fails.
  • the dual capacitor W5 which in FIG. 3 in perspective, shown by way of example, has a plurality of coupled plates, which are crossed by three channels K1 to K3.
  • the dual capacitor W5 is thus formed as a plate capacitor and is used in an unusual manner in the air conditioning system 10, that is connected to the usually provided water channel, the second channel K2, the heat pump cycle 3 with the refrigerant and to the normally provided refrigerant circuit channels, the first and third channel K1 or K3, the heating circuit 2 and the excess circuit 4 are connected.
  • the plate capacitor structure effects a separation of the three channels.
  • the dual heat exchanger W5 can also be designed differently, whereby in particular three channels K1 to K3 must be present.
  • the fourth heat exchanger W4 Due to this unusual use can be dispensed with the fourth heat exchanger W4 as described above. With In other words, the series connection of the fourth heat exchanger W4 is dispensed with. As a result, the advantages mentioned are possible. As a result, the heat pump cycle W3 can be significantly reduced with regard to a quantity of refrigerant and a pipeline length, for example by 30 percent. Furthermore, a reduction of dimensions of the air conditioning system 1 as a whole or individual (partial) circuits and / or elements of the air conditioning system 1 is contributed.
  • the operating modes described above are adjustable analogously to above.
  • the dual heat exchanger W5 is now flowed through by the refrigerant of the heat pump cycle 3, which can now deliver heat both to the heating circuit 2 and / or the excess circuit 4, depending on whether one or both of the circuits 2 and 4 are operated by means of the pumps P3 and P2.
  • the following table compares calculated technical datasheets based on FIG. 1 described air conditioning system 1 and the basis of FIG. 2 described air conditioning system 10 indicated. There is a distinction between different operating modes. The comparison shows in particular performance improvements. The comparison is based on a refrigerant reduction of the refrigerant R134a of 16.5 kg, which corresponds to a CO2 equivalent of 23.925 kg. Such a CO2 saving corresponds, for example, to a driving distance of 150534 km for a vehicle with the value 159 (km CO2) / km.
  • the described air conditioning systems 1, 10 may have more or different circuits built up. It is crucial that the refrigerant circuit or heat pump circuit 3 is integrated into a dual-capacitor, which emits heat simultaneously to two water circuits.

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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)
EP17161613.9A 2016-03-23 2017-03-17 Système de climatisation destiné à refroidir et/ou à chauffer un bâtiment Active EP3222935B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016101602.9U DE202016101602U1 (de) 2016-03-23 2016-03-23 Klimatisierungssystem zum Kühlen und/oder Heizen eines Gebäudes

Publications (3)

Publication Number Publication Date
EP3222935A1 true EP3222935A1 (fr) 2017-09-27
EP3222935B1 EP3222935B1 (fr) 2020-04-22
EP3222935B8 EP3222935B8 (fr) 2020-06-10

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DE (1) DE202016101602U1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101138A1 (de) * 1981-01-15 1982-08-05 Jürgen 4500 Osnabrück Vonhoff Waermepumpe mit waermetauschern
US4727727A (en) * 1987-02-20 1988-03-01 Electric Power Research Institute, Inc. Integrated heat pump system
EP1490636A1 (fr) * 2002-03-04 2004-12-29 Risto Antero Ojala Systeme de pompe a chaleur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308447C2 (de) * 1983-03-10 1991-07-18 Wilhelm 2849 Goldenstedt Hakemann Vorrichtung zur Warmwassererzeugung
EP0867678A1 (fr) * 1997-03-26 1998-09-30 Artur Zachajewicz Echangeur de chaleur à tube multicoaxial
DE20216324U1 (de) * 2002-06-14 2003-03-13 Adolph, Ulrich, Dr.-Ing., 04159 Leipzig Wärmepumpe mit Kühlfunktion
WO2010053798A1 (fr) * 2008-10-28 2010-05-14 Trak International, Llc Procédés et équipement pour le chauffage et le refroidissement de zones de bâtiments
US9052125B1 (en) * 2011-09-08 2015-06-09 Dennis S. Dostal Dual circuit heat pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101138A1 (de) * 1981-01-15 1982-08-05 Jürgen 4500 Osnabrück Vonhoff Waermepumpe mit waermetauschern
US4727727A (en) * 1987-02-20 1988-03-01 Electric Power Research Institute, Inc. Integrated heat pump system
EP1490636A1 (fr) * 2002-03-04 2004-12-29 Risto Antero Ojala Systeme de pompe a chaleur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Projektierungshandbuch Heizen und Kühlen mit Wärmepumpen", 23 February 2012 (2012-02-23), XP055375209, Retrieved from the Internet <URL:http://www.dimplex.de/fileadmin/dimplex/downloads/projektierungshandbuecher/de/454-PHB_Kuehlen_DE_02_2012.pdf> [retrieved on 20170523] *

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DE202016101602U1 (de) 2017-06-27
EP3222935B8 (fr) 2020-06-10
EP3222935B1 (fr) 2020-04-22

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