EP1766301A1 - Coeur de pompe a chaleur compact de type eau/eau, et pompe a chaleur comportant un tel coeur de pompe - Google Patents
Coeur de pompe a chaleur compact de type eau/eau, et pompe a chaleur comportant un tel coeur de pompeInfo
- Publication number
- EP1766301A1 EP1766301A1 EP05772999A EP05772999A EP1766301A1 EP 1766301 A1 EP1766301 A1 EP 1766301A1 EP 05772999 A EP05772999 A EP 05772999A EP 05772999 A EP05772999 A EP 05772999A EP 1766301 A1 EP1766301 A1 EP 1766301A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- heat pump
- pump core
- support base
- heat exchangers
- 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
Links
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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B31/00—Compressor arrangements
Definitions
- the invention relates to water / water type heat pumps.
- This equipment makes it possible to capture the thermal energy available in the air, in the upper layers of the earth or in open water, to concentrate this energy and to return it in this concentrated form (at a higher temperature) to supply a heating circuit with hot water.
- water / water we mean a type of heat pump in which the heat collection circuit and the heat recovery circuit (heating) are both circuits in which a liquid circulates, as opposed to water systems.
- / air "or” air / air " it being understood that, depending on the needs, the water may be replaced or supplemented by another liquid.
- water is often addi ⁇ tioned ethylene glycol or other additive acting as antifreeze.
- a heat pump comprises a compressor block and two heat exchangers respectively connected to the networks for collecting and recovering heat.
- the heat exchangers are, in addition, coupled to the compressor and the refrigerant circuit associated therewith, comprising a condenser, an expander and an evaporator.
- the compressor concentrates condenser side energy captured and restores the evaporator side energy to be returned to the heating circuit.
- heat pump core which constitutes an integrated assembly intended to be associated with the various elements of heat recovery and recovery circuits (piping, circu ⁇ tion pumps, thermostatic sensor, etc. .) as well as system power and control equipment.
- the various elements are interconnected by tubes assembled according to the usual techniques well known to heating and refrigeration technicians. More specifically, the connections between compressor and heat exchangers, and between heat exchangers and input / output outlets of the collection and heat recovery networks, are made by means of copper tubes, assembled by soldering.
- brazing is to assemble different metals by providing a third metal (silver solder, in the case of a brazing) raised to a temperature above its point of fusion.
- the elements of the compressor are generally made of black steel and the exchangers are made of black steel or stainless steel, and these elements are connected to each other by copper tubes, we will find us at the place of the brazed connections in the presence of continuity solutions steel / copper or stainless steel / copper, with in ⁇ terposition of the filler metal. But these connections are subject from the compressor vibra ⁇ tions that would lead quickly to leaks or even damage in the case of too rigid assembly.
- the copper bonds are generally made so as to provide the whole with a certain flexibility, thanks to rather long connections and / or a particular geometry (lyres, coils, etc.) to better disperse the stresses resulting in particular from the propagation of vibrations in the copper pipes.
- Increasing the lengths of tubes has the effect of increasing the exchange surface with the ambient atmosphere, thus the losses, and also unnecessarily increase the volume of refrigerant gas of the compressor circuit.
- the object of the present invention is to remedy these drawbacks by proposing an optimized heat pump core both from the point of view of efficiency and compactness and reliability of operation.
- the heat pump core of the invention is a pump core of water / water type as described above, that is to say comprising, more precisely and in a manner known in itself: a block compressor, comprising a closed circuit charged with refrigerant with compressor, con ⁇ denser, expander and evaporator; an input socket and an output socket to a heat collection network; an input socket and an output socket to a heat transfer network; a first heat exchanger, coupled on the primary side to the evaporator of the compressor block and the secondary side to the heat collection network taps; and a second heat exchanger, coupled on the primary side to the condenser of the compressor block and the secondary side to the outlets of the heat recovery network.
- connection pipes between the heat exchangers and the compressor block, and / or the liai ⁇ son pipes between the heat exchangers and the catches of the collection and heat recovery networks are unbridged connection pipes, forged by welded stainless steel tubes.
- the vibrations generated by the compressor can not cause deterioration of these assemblies, and the mechanical strength, geometry and flexibility of the tubes and stainless steel heat exchangers can be defined so as to absorb without breaking these vibrations. by short links and small diameter, as opposed to the copper links used so far.
- This dimensional reduction makes it possible to lower the thermal exchanges of the fluid with the environment, thus the losses, as well as the volume of refrigerant required.
- heat exchange will also be reduced by the fact that steel is much less good heat conductor than copper and no bracket to the frame is no longer necessary for the main ⁇ heat exchangers (removal of thermal bridges when the heat exchangers are essentially free of such lugs). It is thus possible to significantly increase the coefficient of performance of the heat pump, typically from 1 to 2 points, that is to say that it becomes possible to achieve COP values of the order from 6 to 7, performances far above the best systems proposed until now.
- the welding is advantageously performed by orbital TIG welding, which is a perfectly controlled technique that can be implemented automatically, thus with precise control of the various parameters and excellent reproducibility, again leading to an increase in the overall reliability of the device.
- automatic welding TIG orbital allows to minimize the temperature rise of the compressor body, thus avoiding any embrittlement thereof.
- the heat exchangers are stainless steel tubular exchangers.
- This type of exchanger which is perfectly suitable for a heat pump according to the invention where the various connections are soldered connections, can advantageously replace the solder-assembled plate heat exchangers hitherto generally used in the field of heat pumps. heat pes. Even if they ensure a good heat exchange, the plate exchangers are indeed fragile and do not long support a water loaded with mineral salts, which can cause clogging by accumulation of deposits or solid impurities. Finally, their behavior in the presence of continuous vibrations remains limited.
- This sealed confinement enclosure may in particular comprise a support base, supporting the compressor block and the heat exchangers, and a cover attached to this support base, the support base and the cover being permanently joined to each other, for example by welding if they are metal. It is understood that this "base support” may constitute all or part of any one or some fa ⁇ these of the whole, and not only its lower part.
- the residual free space of the confinement chamber may be filled with an insulating material, the support base then comprising an occultable orifice for introducing this insulating material.
- the internal atmosphere of the confinement chamber may be under vacuum, or filled with an insulating dry gas, the support base then comprising an occultable orifice, in communication with said atmosphere, for the application of the vacuum or the introduction of the gas.
- the catches of the heat collection network, the outlets of the heat transfer network, and the said occultable port (s) are grouped on the support base.
- the invention also covers, as such, a heat pump comprising, in combination, a pump core as above asso ⁇ cied to coupling members, comprising at least one circulator, a sensing circuit of heat and a heat recovery circuit, as well as thermal regulating members, and power supply members of the assembly.
- reference numeral 10 denotes the compressor block, which is an en ⁇ appears with a closed circuit, charged with refrigerant, comprising a compressor 11, an evaporator 12, a condenser 13 and a pressure regulator 14.
- the compressor motor is for example an electric motor supplied from outside by the mains.
- a first heat exchanger 20 is coupled on the primary side to the evaporator 12 of the compressor block 10 via two links 21 and 22. On the second side, it is connected to sockets 23, 24 for inlet and outlet of fluid desti ⁇ to be connected to a heat collection network; the connections to the sockets 23, 24 are made by pipes 25, 26.
- a second heat exchanger 30 is coupled on the primary side to the condenser 13 of the compressor unit 10 via two links 31 and 32. On the second side, it is connected to sockets 33, 34 for the inlet and the outlet of the fluid. to be connected to a heat transfer network (heating network); the connections to the taps 33, 34 are produced by tubes 35, 36.
- the exchangers 20 and 30 are preferably twisted tubular heat exchangers made of welded stainless steel, the size of which is adapted to the power of the compressor to guarantee optimum exchange both towards the heating circuit and from the heat capture circuit. .
- connections 21, 22, 31, 32 between the compressor 10 and the heat exchangers 20 and 30, as well as the connections 25, 26, 35, 36 between the exchangers 20 and 30 and Inlets and outlets 23, 24, 33, 34 for input and output from heat capture and return networks are provided by means of welded stainless steel tubes.
- the diameter of these tubes is optimized to ensure this connection without creating any obstacle for the fluid (refrigerant, or fluid flowing in the networks), with a length and a geometry studied to achieve this connection by the shortest path possible.
- the exchangers can be simply suspended by the tubes 21, 22, 25, 26 (or 31, 32, 35, 36, respectively), which they are held in place without the need to pre ⁇ see to support the mounting brackets to the frame or analog means, generators thermal bridges.
- a small diameter tube 16 which may also be made of spiral or multispire-shaped stainless steel, provides sealed access for refrigerant charging of the compressor and control of this charge. Outside the enclosure, this stainless steel tube may be extended by a copper tube allowing the connection to the refrigerant gas reserve by methods usually used by refrigerators.
- the various elements of the heat pump core that have just been described are grouped together inside a housing 40 consisting of a sup ⁇ base 41 and a hood 42.
- all the inputs and useful outputs and all access to the elements of the pump core are grouped at the support base 41, including the sockets 23, 24, 33, 34 to the heat capture and recovery networks.
- the support base occupies the entire lower part of the assembly. But it can also occupy all or part of any one or some sides of en ⁇ seems, as needed in the realization of the heat pump.
- the cover 42 can therefore be easily sealed, formed in one piece, for example metal, without any crossing. It can be sealed to the support base 41 to form an envelope completely isolating the heat pump core from its environment.
- this waterproof fastening can even be advantageously achieved by welding. of the two elements so as to constitute a single functional block, not removable.
- Other permanent joining solutions may be envisaged, for example gluing, when the hood and / or base sup ⁇ port are not made of a metal material suitable for welding.
- an insulating material is introduced through the ori fi cation 44 to completely fill the internal volume of the pump core, for example a pulverulent material or an expandable foam, which will minimize heat exchange.
- this lining reduces the transmission of mechanical and acoustic vibrations produced by the compressor to the outside.
- the sealed enclosure can finally be drawn to vacuum or filled with a dry gas providing better thermal insulation characteristics than air, for example argon or sulfur hexafluoride.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Central Heating Systems (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05772999T PL1766301T3 (pl) | 2004-06-14 | 2005-05-30 | Rdzeń kompaktowej pompy ciepła typu woda/woda, oraz pompa ciepła zawierająca ten rdzeń pompy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0406398A FR2871559B1 (fr) | 2004-06-14 | 2004-06-14 | Coeur de pompe a chaleur compact de type eau/eau |
PCT/FR2005/001323 WO2006005832A1 (fr) | 2004-06-14 | 2005-05-30 | Coeur de pompe a chaleur compact de type eau/eau, et pompe a chaleur comportant un tel coeur de pompe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1766301A1 true EP1766301A1 (fr) | 2007-03-28 |
EP1766301B1 EP1766301B1 (fr) | 2009-01-07 |
Family
ID=34946198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05772999A Not-in-force EP1766301B1 (fr) | 2004-06-14 | 2005-05-30 | Coeur de pompe a chaleur compact de type eau/eau, et pompe a chaleur comportant un tel coeur de pompe |
Country Status (11)
Country | Link |
---|---|
US (1) | US20080196872A1 (fr) |
EP (1) | EP1766301B1 (fr) |
CN (1) | CN100351590C (fr) |
AT (1) | ATE420328T1 (fr) |
CA (1) | CA2569914A1 (fr) |
DE (1) | DE602005012270D1 (fr) |
DK (1) | DK1766301T3 (fr) |
ES (1) | ES2321316T3 (fr) |
FR (1) | FR2871559B1 (fr) |
PL (1) | PL1766301T3 (fr) |
WO (1) | WO2006005832A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010139B4 (de) * | 2007-02-28 | 2021-02-11 | Stiebel Eltron Gmbh & Co. Kg | Wärmepumpenvorrichtung |
US9404650B2 (en) * | 2009-06-30 | 2016-08-02 | M. Alexandre Lapierre | Boiler with improved hot gas passages |
US10428745B2 (en) * | 2013-02-19 | 2019-10-01 | Ford Global Technologies, Llc | Charge motion control valve and intake runner system |
EP3318821B1 (fr) * | 2015-07-03 | 2023-01-18 | Mitsubishi Electric Corporation | Dispositif de pompe à chaleur |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475920A (en) * | 1968-05-06 | 1969-11-04 | Gen Motors Corp | Keeping insulation dry |
DE2842893A1 (de) * | 1978-10-02 | 1980-04-17 | Kueppersbusch | Waermepumpenheizungssystem |
DE3007675A1 (de) * | 1980-02-29 | 1981-09-10 | Al-Ko Polar Gmbh Maschinenfabrik, 8876 Jettingen-Scheppach | Waermepumpe |
FR2546281B1 (fr) * | 1983-05-18 | 1990-04-06 | Fonderie Soc Gen De | Element de circuit de fluide, pompe a chaleur le comprenant, et son procede de fabrication |
DE3871995T2 (de) * | 1987-03-12 | 1993-01-28 | Shinko Kogyo Kk | Klimaanlage fuer gebaeude. |
SE8903385L (sv) * | 1989-10-13 | 1991-04-14 | Ivt Ind | Vaermepumpanlaeggning med koeldmediekretsen anordnad som en utbytbar enhet samt anordning foer genomfoerande av enhetsbyte |
US5080325A (en) * | 1990-11-14 | 1992-01-14 | Air Products And Chemicals, Inc. | Corrosion resistant stainless steel valve or fitting |
US5299731A (en) * | 1993-02-22 | 1994-04-05 | L'air Liquide | Corrosion resistant welding of stainless steel |
US5396039A (en) * | 1993-11-24 | 1995-03-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for assembling piping or components by TIG welding |
US5642622A (en) * | 1995-08-17 | 1997-07-01 | Sunpower, Inc. | Refrigerator with interior mounted heat pump |
DE19711621A1 (de) * | 1997-03-20 | 1998-09-24 | Emerson Electric Gmbh | Druckdichtes Gehäuse und Verfahren zu seiner Herstellung |
DE19820818C2 (de) * | 1998-05-09 | 2002-12-05 | Viessmann Werke Kg | Wärmepumpe |
US6634182B2 (en) * | 1999-09-17 | 2003-10-21 | Hitachi, Ltd. | Ammonia refrigerator |
JP2002107010A (ja) * | 2000-09-29 | 2002-04-10 | Fuji Koki Corp | レシーバドライヤ |
FR2841331B1 (fr) * | 2002-06-21 | 2005-02-25 | Mota | Echangeurs multitubulaires et procede de fabrication de ces echangeurs |
-
2004
- 2004-06-14 FR FR0406398A patent/FR2871559B1/fr not_active Expired - Fee Related
- 2004-06-25 CN CNB2004100618797A patent/CN100351590C/zh not_active Expired - Fee Related
-
2005
- 2005-05-30 ES ES05772999T patent/ES2321316T3/es active Active
- 2005-05-30 EP EP05772999A patent/EP1766301B1/fr not_active Not-in-force
- 2005-05-30 CA CA002569914A patent/CA2569914A1/fr not_active Abandoned
- 2005-05-30 WO PCT/FR2005/001323 patent/WO2006005832A1/fr active Application Filing
- 2005-05-30 PL PL05772999T patent/PL1766301T3/pl unknown
- 2005-05-30 DE DE602005012270T patent/DE602005012270D1/de active Active
- 2005-05-30 US US11/629,508 patent/US20080196872A1/en not_active Abandoned
- 2005-05-30 DK DK05772999T patent/DK1766301T3/da active
- 2005-05-30 AT AT05772999T patent/ATE420328T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006005832A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL1766301T3 (pl) | 2009-06-30 |
FR2871559A1 (fr) | 2005-12-16 |
EP1766301B1 (fr) | 2009-01-07 |
CA2569914A1 (fr) | 2006-01-19 |
ATE420328T1 (de) | 2009-01-15 |
DE602005012270D1 (de) | 2009-02-26 |
ES2321316T3 (es) | 2009-06-04 |
CN100351590C (zh) | 2007-11-28 |
CN1712866A (zh) | 2005-12-28 |
DK1766301T3 (da) | 2009-05-11 |
US20080196872A1 (en) | 2008-08-21 |
FR2871559B1 (fr) | 2006-09-22 |
WO2006005832A1 (fr) | 2006-01-19 |
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