EP1766301B1 - Kompakter wasser-/wasserwärmepumpenkern und wärmepumpe damit - Google Patents

Kompakter wasser-/wasserwärmepumpenkern und wärmepumpe damit Download PDF

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Publication number
EP1766301B1
EP1766301B1 EP05772999A EP05772999A EP1766301B1 EP 1766301 B1 EP1766301 B1 EP 1766301B1 EP 05772999 A EP05772999 A EP 05772999A EP 05772999 A EP05772999 A EP 05772999A EP 1766301 B1 EP1766301 B1 EP 1766301B1
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EP
European Patent Office
Prior art keywords
heat pump
heat
pump core
exchangers
loop
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.)
Not-in-force
Application number
EP05772999A
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English (en)
French (fr)
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EP1766301A1 (de
Inventor
Georges Favier
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.)
Fessart Philippe
Horps Michel
Original Assignee
Fessart Philippe
Horps Michel
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Filing date
Publication date
Application filed by Fessart Philippe, Horps Michel filed Critical Fessart Philippe
Priority to PL05772999T priority Critical patent/PL1766301T3/pl
Publication of EP1766301A1 publication Critical patent/EP1766301A1/de
Application granted granted Critical
Publication of EP1766301B1 publication Critical patent/EP1766301B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 hot water heating circuit.
  • water / water is meant a type of heat pump in which the heat capture circuit and the heat return circuit (heating) are both liquid circulating circuits, as opposed to water / air systems.
  • air / air it being understood that, depending on the needs, the water may be replaced or supplemented by another liquid.
  • water is often added ethylene glycol or other additive acting as antifreeze.
  • COP coefficient of performance
  • a heat pump comprises a compressor block and two heat exchangers respectively connected to the collection and heat recovery networks.
  • the heat exchangers are also coupled to the compressor and the refrigerant circuit associated therewith, comprising a condenser, a pressure reducer and an evaporator.
  • the compressor concentrates the captured energy on the condenser side and restores the energy to the heating circuit on the evaporator side.
  • the overall performance of the heat pump is even better than the heat exchange is complete and all the actions of the compressor and heat exchangers operate with the best possible thermal insulation vis-à-vis the environment outside.
  • heat pump core which constitutes an integrated assembly intended to be associated with the various elements of the heat capture and recovery circuits (piping, circulation pumps, thermostatic sensor, etc.) as well as 'to the power and control equipment of the system.
  • connections between compressor and heat exchangers, and between heat exchangers and input / output ports of the collection and heat recovery networks are made by means of copper tubes, assembled by soldering.
  • copper is characterized by a high thermal conductivity, which is not sought in this application because it generates losses by heat exchange with the environment
  • brazing is to assemble different metals by providing a third metal (silver solder, in the case of a brazing) brought to a temperature above its melting point. Since 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 further interposition of the filler metal.
  • 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.
  • 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 and disclosed by the EP-A-0 035 656 above, that is to say comprising, more precisely and in a manner known per se: a compressor block, comprising a closed circuit charged with refrigerant with compressor, condenser, 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 taps of the heat collection network; and a second heat exchanger, coupled on the primary side to the condenser of the compressor block and on the secondary side to the outlets of the heat transfer network.
  • the connecting pipes between the heat exchangers and the compressor block, and / or the connection pipes between the heat exchangers and the heat recovery and collection system taps are tubes of unbrazed connection, formed by welded stainless steel tubes.
  • the vibrations generated by the compressor can not cause deterioration of these assemblies, and the mechanical strength, the geometry and the flexibility of the tubes and the stainless steel exchangers can be defined so as to absorb without rupture these vibrations by short links and small diameter, as opposed to the copper links used 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 overall reliability. of the device.
  • the automatic TIG orbital welding makes it possible to limit to a minimum 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 solder-assembled plate heat exchangers hitherto generally used in the field of pumps. heat. Even if they ensure a good heat exchange, plate heat exchangers are indeed fragile and do not support long 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 "support base” may constitute all or part of any one or some of the faces of the assembly, 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 associated with coupling members, comprising at least one circulator, a heat capture circuit and a heat recovery circuit, as well as thermal regulating members, and power supply members of the assembly.
  • reference numeral 10 denotes the compressor unit, which is an assembly 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 powered from the 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 secondary side, it is connected to receptacles 23, 24 for fluid inlet and outlet intended to be connected. 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 block 10 via two links 31 and 32. On the secondary side, it is connected to fluid inlet and outlet taps 33, 34 intended 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 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.
  • the links 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 the sockets 23, 24, 33, 34 inlet and outlet networks of heat capture and return 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 hold them in place without having to it is necessary to provide support for mounting brackets to the frame or similar means, thermal bridge generators.
  • 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 with a copper tube allowing the connection to the reserve of refrigerant gas by methods commonly used by refrigeration.
  • the various elements of the heat pump core that have just been described are grouped inside a housing 40 consisting of a support base 41 and a cover 42.
  • all the inputs and outputs that are useful 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 whole lower part of the whole. But it can also occupy all or part of any one or some faces of the assembly, 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 cover and / or base support are not made of a metal material suitable for welding.
  • an insulating material is introduced through the orifice 44 to completely fill the internal volume of the pump core, for example a powdery material or an expandable foam, which will minimize the undesirable thermal exchanges and increase all the performance of the system.
  • 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.
  • 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)

Claims (12)

  1. Herz einer Wärmepumpe vom Typ Wasser/Wasser, umfassend :
    - einen Kompressorblock (10) umfassend einen mit einem Kompressor (11), einem Kondensator (13), einem Expansionsventil (14) und einem Verdampfer (12) bestückten Kältemittelkreislauf,
    - einen Einlassanschluss (23) und einen Auslassanschluss (24) zu einem Wärmeaufnahmesystem,
    - einen Einlassanschluss (33) und einen Auslassanschluss (34) zu einem Wärmeabgabesystem,
    - einen ersten, primärseitig mit dem Verdampfer des Kompressorblocks und sekundärseitig mit den Anschlüssen des Wärmeaufnahmesystems verbundenen Wärmeaustauscher (20),
    - einen zweiten, primärseitig mit dem Kondensator des Kompressorblocks und sekundärseitig mit den Anschlüssen des Wärmeabgabesystems verbundenen Wärmeaustauscher,
    dadurch gekennzeichnet, dass die Verbindungsleitungen (21, 22, 31, 32) zwischen den Wärmeaustauschern und dem Kompressorblock und/oder die Verbindungsleitungen (25, 26, 35, 36) zwischen den Wärmeaustauschern und den Anschlüssen der Wärmeaufnahme- und Wärmeabgabesysteme nicht-hartgelötete, durch geschweisste Rohre aus rostfreiem Stahl gebildete Verbindungsleitungen sind.
  2. Herz einer Wärmepumpe nach Anspruch 1, in welchem die geschweissten Rohre aus rostfreiem Stahl durch orbitale TIG-Schweissung geschweissten Rohre sind.
  3. Herz einer Wärmepumpe nach Anspruch 1, in welchem die Wärmeaustauscher (20, 30) Rohrwärmeaustauscher aus rostfreiem Stahl sind.
  4. Herz einer Wärmepumpe nach Anspruch 1, in welchem der Kompressorblock, die Wärmeaustauscher, die Verbindungsleitungen zwischen den Wärmeaustauschern und dem Kompressorblock und zwischen den Wärmeaustauschern und den Anschlüssen der Wärmeaufnahme- und Wärmeabgabesysteme in einer dichten Sicherheitshülle eingeschlossen sind.
  5. Herz einer Wärmepumpe nach Anspruch 1, in welchem die Wärmeaustauscher im wesentlichen keine Auflagepratzen zur Befestigung am Gehäuse besitzen.
  6. Herz einer Wärmepumpe nach Anspruch 4, in welchem die dichte Sicherheitshülle (40) eine mindestens ein Teil mindestens einer der Seiten der Baugruppe umfassende Grundplatte (41) umfasst, die den Kompressorblock und die Wärmeaustauscher abstützt, und eine an diese Grundplatte angebaute Haube (42) umfasst.
  7. Herz einer Wärmepumpe nach Anspruch 6, in welchem die Grundplatte (41) und die Haube (42) andauernd miteinander formschlüssig verbunden sind.
  8. Herz einer Wärmepumpe nach Anspruch 6, in welchem der Restfreiraum in der Sicherheitshülle mit einem Isolierstoff gefüllt ist, und die Grundplatte (41) eine verdeckbare Öffnung (44) aufweist, um diesen Isolierstoff hineinstecken zu können.
  9. Herz einer Wärmepumpe nach Anspruch 6, in welchem die interne Atmosphäre der Sicherheitshülle unter Vakuum steht, und die Grundplatte (41) eine in Verbindung mit besagter Atmosphäre stehende, zum Anlegen eines Vakuums bestimmte, verdeckbare Öffnung aufweist.
  10. Herz einer Wärmepumpe nach Anspruch 6, in welchem die interne Atmosphäre der Sicherheitshülle mit einem isolierenden trockenen Gas gefüllt ist, und die Grundplatte (41) eine in Verbindung mit besagter Atmosphäre stehende, zur Einleitung dieses Gases, verdeckbare Öffnung aufweist.
  11. Herz einer Wärmepumpe nach Anspruch 8-10, in welchem die Anschlüsse (23, 24) des Wärmeaufnahmesystems, die Anschlüsse (33, 34) des Wärmeabgabesystems, und die verdeckbare(n) Öffnung(en) auf der Grundplatte (41) zusammengebracht sind.
  12. Wärmepumpe, dadurch gekennzeichnet, dass sie
    - ein Herz einer Wärmepumpe nach einer der Ansprüche 1-11,
    - Glieder umfassend wenigstens eine Umwälzpumpe zur Verbindung mit einem Wärmeaufnahmekreislauf,
    - Glieder umfassend wenigstens eine Umwälzpumpe zur Verbindung mit einem Wärmeabgabekreislauf,
    - Temperaturregelungsglieder, und
    - Glieder zur Stromversorgung der gesamten Baugruppe, kombiniert umfasst.
EP05772999A 2004-06-14 2005-05-30 Kompakter wasser-/wasserwärmepumpenkern und wärmepumpe damit Not-in-force EP1766301B1 (de)

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 EP1766301A1 (de) 2007-03-28
EP1766301B1 true EP1766301B1 (de) 2009-01-07

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EP05772999A Not-in-force EP1766301B1 (de) 2004-06-14 2005-05-30 Kompakter wasser-/wasserwärmepumpenkern und wärmepumpe damit

Country Status (11)

Country Link
US (1) US20080196872A1 (de)
EP (1) EP1766301B1 (de)
CN (1) CN100351590C (de)
AT (1) ATE420328T1 (de)
CA (1) CA2569914A1 (de)
DE (1) DE602005012270D1 (de)
DK (1) DK1766301T3 (de)
ES (1) ES2321316T3 (de)
FR (1) FR2871559B1 (de)
PL (1) PL1766301T3 (de)
WO (1) WO2006005832A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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 (de) * 2015-07-03 2023-01-18 Mitsubishi Electric Corporation Wärmepumpenvorrichtung

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US3475920A (en) * 1968-05-06 1969-11-04 Gen Motors Corp Keeping insulation dry
DE2842893A1 (de) * 1978-10-02 1980-04-17 Kueppersbusch Waermepumpenheizungssystem
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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
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FR2841331B1 (fr) * 2002-06-21 2005-02-25 Mota Echangeurs multitubulaires et procede de fabrication de ces echangeurs

Also Published As

Publication number Publication date
CN1712866A (zh) 2005-12-28
FR2871559A1 (fr) 2005-12-16
DE602005012270D1 (de) 2009-02-26
US20080196872A1 (en) 2008-08-21
ATE420328T1 (de) 2009-01-15
PL1766301T3 (pl) 2009-06-30
DK1766301T3 (da) 2009-05-11
WO2006005832A1 (fr) 2006-01-19
CN100351590C (zh) 2007-11-28
EP1766301A1 (de) 2007-03-28
ES2321316T3 (es) 2009-06-04
CA2569914A1 (fr) 2006-01-19
FR2871559B1 (fr) 2006-09-22

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