EP1957889A1 - Heat pump for heating swimming pool water - Google Patents
Heat pump for heating swimming pool waterInfo
- Publication number
- EP1957889A1 EP1957889A1 EP06841814A EP06841814A EP1957889A1 EP 1957889 A1 EP1957889 A1 EP 1957889A1 EP 06841814 A EP06841814 A EP 06841814A EP 06841814 A EP06841814 A EP 06841814A EP 1957889 A1 EP1957889 A1 EP 1957889A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat pump
- refrigerant
- heat
- heat exchange
- condenser
- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/04—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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/027—Condenser control arrangements
-
- 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
-
- 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
- F25B2600/00—Control issues
- F25B2600/17—Control issues by controlling the pressure of 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
Definitions
- the present invention relates to a heat pump for the heating of pool water, and a method of heating swimming pool water.
- Heat pumps are thermodynamic systems which comprise a primary refrigerant circuit which comprises a compressor which supplies a condenser which constitutes a heat exchanger between the refrigerant and a heat source, an expander and an evaporator which constitutes a refrigerant. heat exchanger.
- the heat exchangers exchange heat with a cold source and a hot source, one of which is an external environment, for example atmospheric air or a stream.
- US-5,272,885 discloses a heat pump system used for room air conditioning. It comprises on the one hand a heat pump assembly and on the other hand various user circuits.
- the external environment is constituted by a water supply unit.
- the unit in this document cools the water in the water supply unit, and in the air cooling mode, the unit removes heat from the air of internal air conditioning units and heats the water of the water supply unit.
- the apparatus is highly complex because it includes many control systems: an internal controller with each conditioning unit, a distribution controller, and an external controller. All these controllers control all-or-nothing or progressive regulation (opening control of flow control valves, variable capacity compressor, progressive regulator adjustment, additional opening control of flow control valve, etc.).
- Many sensors are incorporated in the pump and each conditioning unit. Two valves can switch on complementary heat exchangers.
- This apparatus has been described because it shows that the simple conditioning of room air by use of a heat pump can be very complex, that is to say may require many devices with sensing, control, control, and other functions. and which are susceptible to breakdowns, so that specialized personnel is required for the implementation of such a heat pump.
- the system should be adapted to allow water heating, instead of air conditioning.
- GB-2,015,139 and 406,137 disclose the switching of heat exchange devices between states giving different heat exchange surfaces. It is already known to use heat pumps for heating swimming pool water. These heat pumps comprise a primary refrigerant circuit which comprises, as indicated in FIG. 1, a compressor 10 which supplies a condenser 12 (which constitutes a heat exchanger) between the refrigerant and the swimming pool water to be heated, an expander 14 and an evaporator 16 (which constitutes a heat exchanger) between the external medium, for example the outside air, and the refrigerant.
- a primary refrigerant circuit which comprises, as indicated in FIG. 1, a compressor 10 which supplies a condenser 12 (which constitutes a heat exchanger) between the refrigerant and the swimming pool water to be heated, an expander 14 and an evaporator 16 (which constitutes a heat exchanger) between the external medium, for example the outside air, and the refrigerant.
- the characteristics of the exchangers, in particular their dimensions, and the adjustment of the expander and the compressor are optimized for a determined operating speed.
- the condenser is intended to allow the heat pump to give its maximum power while maintaining an optimal operating regime from the point of view of the refrigerant circuit (pressure and temperature of the refrigerant).
- the heat exchange in the condenser is reduced, because the flow of water is low or because the temperature of the pool water is high, the refrigerant is heated significantly and causes an increase of pressure in the condenser.
- the efficiency of the heat pump is also reduced, the operation can be disrupted and the heat pump can even be damaged. In particular, beyond a certain pressure, the machine is stopped by a safety pressure switch.
- pool heat pumps generally include a hydraulic bypass located upstream of the heat pump and to adjust the flow of water flowing in the secondary circuit of the condenser (exchanger) of the pump. to heat, so that the heat exchange remains optimal and that the operation of the heat pump is satisfactory.
- the installation must therefore include a regulating device intended to vary the flow of water circulating in the condenser. Given the treated water flow rates, such a control device has a relatively delicate operation and is expensive. Very often, it is simply replaced by a simple manual device that no longer gives regulation function.
- the object of the invention is to solve the problems raised, or at least to reduce their acuity, by a simplification of the pool water heating heat pumps, which notably allows a reduction of cost and sensitivity to breakdowns.
- the problem is solved by modulating the heat exchange capacity of the refrigerant heat exchanger circuit of the condenser, and not by modulating the flow of water flowing in the condenser.
- This modulation can be performed between two values only, with simple and robust means.
- the heat exchange surface of the primary circuit of the condenser is automatically reduced.
- the primary refrigerant circuit always comprises at least one heat exchange circuit, and at least one other heat exchange circuit can be switched on by at least one switching element, under the control of a controller which is connected to a sensor of a parameter of operation, such as the refrigerant vapor pressure between the compressor and the expander.
- the invention relates to a heat pump for heating water in a swimming pool, of the type which comprises, in a primary coolant circuit, a compressor, a condenser constituting a heat exchanger between the refrigerant and swimming pool water circulating in a secondary circuit, an expander, and an evaporator constituting a heat exchanger between the external medium and the refrigerant;
- the condenser comprises at least two heat exchange circuits
- the heat pump comprises a sensor of a parameter of the operation of the heat pump, at least one switching element for the circulation of the refrigerant between a state of circulation in only one of the heat exchange circuits and a state of circulation in at least two of the heat exchange circuits, and a control member of the switching member at least as a function of the value of the sensor signal.
- At least one switching member comprises at least one electromagnetic valve.
- the sensor of an operating parameter of the heat pump detects the pressure of the refrigerant on the high-pressure part of the refrigerant circuit, for example between the compressor and the condenser.
- the heat pump comprises at least two heat exchange circuits which are arranged in series in the condenser. It can then further include a bypass relative to one of the heat exchange circuits.
- the heat pump comprises at least two heat exchange circuits arranged in parallel in the condenser.
- the invention also relates to a method for heating swimming pool water using a heat pump according to the preceding paragraphs, which comprises the measurement of a parameter of the operation of the heat pump, the comparison of the measured value of the parameter at a threshold and, when the parameter exceeds a threshold, the control of the switching of the circulation of the refrigerant in a heat exchange circuit.
- the comparison to a threshold comprises the use of two different thresholds depending on whether the parameter increases or decreases, so that control is provided with a hysteresis effect.
- FIG. 1 already described, represents a pump diagram heat pump used for heating swimming pool water;
- Figures 2 and 3 show two examples of heat exchange circuitry of the primary circuit of the condenser of the heat pump;
- Figure 4 is a schematic diagram of a heat pump condenser according to the invention;
- FIG. 5 is a perspective view with torn parts of an example of the condenser schematically shown in FIG. 4.
- the compressor 10 carries the refrigerant, in the vapor state, at a high pressure, this pressure being advantageously measured by a sensor 18.
- the refrigerant in the vapor state enters the condenser 12 and circulates in a primary circuit portion 20.
- the primary circuit portion 20 of the condenser 12 may comprise, according to the invention, at least two heat exchange circuits 22, connected in series and one of which may have a bypass 24 which is switched on or off by a electromagnetic valve 26.
- this valve 26 When this valve 26 is open, the refrigerant circulates in series in the two heat exchange circuits 22, for example two coils, while, when the valve 26 feeds the bypass 24, only the second circuit 22 is supplied.
- FIG. 3 represents a variant in which heat exchange circuits 22 are connected in parallel and each heat exchange circuit, beyond the first, is switched on or off by control of an associated electromagnetic valve 28
- the series circuit of FIG. 2 like the parallel circuit of FIG. 3, may comprise a greater number of heat exchange circuits, ie coils, as suggested by FIG. the broken features.
- the important characteristic of the invention is that, thanks to the electromagnetic valves 26, 28, the heat exchange capacity of the primary circuit 20 of the condenser 12 can be modulated to several values so that the heat pump is always in its conditions optimal operation.
- FIG. 4 represents an example of condenser 12 according to the invention.
- the water enters through an inlet 30 to near the opposite end of the condenser 12 where it meets the bottom 31 of a deflector 32 which forces water to return to the side of its inlet, before be deflected again by the end of the outer body 34 to an outlet 36 of water.
- FIG. 4 does not show the duct connections or the electromagnetic valve allowing the two coils 38 and 40 to be connected in series or in parallel.
- FIG. 5 represents a practical embodiment of the condenser shown in FIG. the same numerical references as on this one.
- the modulation of the heat exchange surface of the condenser is ensured by measuring the pressure at the outlet of the condenser, it is possible to measure other parameters.
- the measured parameter can therefore be any combination of parameters commonly used for this purpose in heat pump technology.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0512028A FR2894017B1 (en) | 2005-11-28 | 2005-11-28 | HEAT PUMP FOR HEATING POOL WATER |
PCT/FR2006/002601 WO2007060343A1 (en) | 2005-11-28 | 2006-11-28 | Heat pump for heating swimming pool water |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1957889A1 true EP1957889A1 (en) | 2008-08-20 |
EP1957889B1 EP1957889B1 (en) | 2010-07-14 |
Family
ID=36123284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06841814A Active EP1957889B1 (en) | 2005-11-28 | 2006-11-28 | Heat pump for heating swimming pool water |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080296396A1 (en) |
EP (1) | EP1957889B1 (en) |
CN (1) | CN101371084B (en) |
AT (1) | ATE474194T1 (en) |
DE (1) | DE602006015515D1 (en) |
ES (1) | ES2351707T3 (en) |
FR (1) | FR2894017B1 (en) |
WO (1) | WO2007060343A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101839547B (en) * | 2009-12-26 | 2012-04-18 | 艾欧史密斯(中国)热水器有限公司 | Heat pump water heater |
US20130161404A1 (en) * | 2010-08-09 | 2013-06-27 | Zvi Shtilerman | Apparatus and method for heating water |
TWI500893B (en) * | 2012-11-16 | 2015-09-21 | Ind Tech Res Inst | Heat pump air condition system and control method thereof |
US9016074B2 (en) | 2013-03-15 | 2015-04-28 | Energy Recovery Systems Inc. | Energy exchange system and method |
US10260775B2 (en) | 2013-03-15 | 2019-04-16 | Green Matters Technologies Inc. | Retrofit hot water system and method |
US20140260380A1 (en) * | 2013-03-15 | 2014-09-18 | Energy Recovery Systems Inc. | Compressor control for heat transfer system |
US9234686B2 (en) | 2013-03-15 | 2016-01-12 | Energy Recovery Systems Inc. | User control interface for heat transfer system |
US10119738B2 (en) | 2014-09-26 | 2018-11-06 | Waterfurnace International Inc. | Air conditioning system with vapor injection compressor |
US9739392B2 (en) * | 2014-10-07 | 2017-08-22 | Haier Us Appliance Solutions, Inc. | Damper valve and a heat pump water heater appliance |
US10871314B2 (en) | 2016-07-08 | 2020-12-22 | Climate Master, Inc. | Heat pump and water heater |
US10866002B2 (en) | 2016-11-09 | 2020-12-15 | Climate Master, Inc. | Hybrid heat pump with improved dehumidification |
US10935260B2 (en) | 2017-12-12 | 2021-03-02 | Climate Master, Inc. | Heat pump with dehumidification |
CN108444074B (en) * | 2018-03-05 | 2021-02-12 | 重庆美的通用制冷设备有限公司 | Heating control method, device and system for heat recoverer in air conditioner |
US11592215B2 (en) | 2018-08-29 | 2023-02-28 | Waterfurnace International, Inc. | Integrated demand water heating using a capacity modulated heat pump with desuperheater |
CA3081986A1 (en) | 2019-07-15 | 2021-01-15 | Climate Master, Inc. | Air conditioning system with capacity control and controlled hot water generation |
CN112378133B (en) * | 2020-11-06 | 2022-03-15 | 佛山市顺德区一拓电气有限公司 | Temperature control method of swimming pool and swimming pool equipment |
CN115560374B (en) * | 2022-12-05 | 2023-02-28 | 北京煦联得节能科技股份有限公司 | Heating control method and system based on heat pump unit state data processing |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3498072A (en) * | 1968-08-09 | 1970-03-03 | Rudy C Stiefel | Air conditioning method |
DE2161495A1 (en) * | 1971-12-10 | 1973-06-20 | Rhein Westfael Elect Werk Ag | HEAT RECOVERY PLANT |
US3926008A (en) * | 1974-08-15 | 1975-12-16 | Robert C Webber | Building cooling and pool heating system |
CH584388A5 (en) * | 1974-10-16 | 1977-01-31 | Escher Wyss Gmbh | |
DE7805394U1 (en) * | 1978-02-23 | 1978-07-06 | Costan Kuehlmoebel Gmbh, 5040 Bruehl | CAPACITOR BATTERY |
DE3034965C2 (en) * | 1980-09-17 | 1983-05-05 | Wieland-Werke Ag, 7900 Ulm | Heat transfer device for heat pumps |
JP3322684B2 (en) * | 1992-03-16 | 2002-09-09 | 東芝キヤリア株式会社 | Air conditioner |
JP3140333B2 (en) * | 1995-07-14 | 2001-03-05 | 株式会社クボタ | Heat pump equipment |
US5802864A (en) * | 1997-04-01 | 1998-09-08 | Peregrine Industries, Inc. | Heat transfer system |
US6327871B1 (en) * | 2000-04-14 | 2001-12-11 | Alexander P. Rafalovich | Refrigerator with thermal storage |
JP3737381B2 (en) * | 2000-06-05 | 2006-01-18 | 株式会社デンソー | Water heater |
JP4180786B2 (en) * | 2000-08-11 | 2008-11-12 | 株式会社鷺宮製作所 | Electric switching valve and refrigeration cycle apparatus for refrigeration / refrigerator |
US6418735B1 (en) * | 2000-11-15 | 2002-07-16 | Carrier Corporation | High pressure regulation in transcritical vapor compression cycles |
US6536221B2 (en) * | 2001-01-16 | 2003-03-25 | Norbert L. James | Air conditioning heat recovery arrangement |
CN2674364Y (en) * | 2003-10-13 | 2005-01-26 | 仵崇哲 | Air conditioner refrigerating system |
US8312734B2 (en) * | 2008-09-26 | 2012-11-20 | Lewis Donald C | Cascading air-source heat pump |
-
2005
- 2005-11-28 FR FR0512028A patent/FR2894017B1/en not_active Expired - Fee Related
-
2006
- 2006-11-28 ES ES06841814T patent/ES2351707T3/en active Active
- 2006-11-28 DE DE602006015515T patent/DE602006015515D1/en active Active
- 2006-11-28 US US12/095,284 patent/US20080296396A1/en not_active Abandoned
- 2006-11-28 CN CN2006800442354A patent/CN101371084B/en not_active Expired - Fee Related
- 2006-11-28 WO PCT/FR2006/002601 patent/WO2007060343A1/en active Application Filing
- 2006-11-28 EP EP06841814A patent/EP1957889B1/en active Active
- 2006-11-28 AT AT06841814T patent/ATE474194T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2007060343A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101371084B (en) | 2010-06-23 |
FR2894017A1 (en) | 2007-06-01 |
ATE474194T1 (en) | 2010-07-15 |
CN101371084A (en) | 2009-02-18 |
US20080296396A1 (en) | 2008-12-04 |
DE602006015515D1 (en) | 2010-08-26 |
FR2894017B1 (en) | 2008-02-15 |
EP1957889B1 (en) | 2010-07-14 |
ES2351707T3 (en) | 2011-02-09 |
WO2007060343A1 (en) | 2007-05-31 |
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