CN1244774C - Heat pump type hot water supply device and heat pump type hot water supply heating device - Google Patents
Heat pump type hot water supply device and heat pump type hot water supply heating device Download PDFInfo
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- CN1244774C CN1244774C CN 200410002819 CN200410002819A CN1244774C CN 1244774 C CN1244774 C CN 1244774C CN 200410002819 CN200410002819 CN 200410002819 CN 200410002819 A CN200410002819 A CN 200410002819A CN 1244774 C CN1244774 C CN 1244774C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
This heat pump type hot water supply device comprises a refrigerant circuit R obtained by successively circularly connecting a compressor 11, a parallel circuit of the first water refrigerant heat exchanger 9 and the second water refrigerant heat exchanger 12, an internal heat exchanger 15, a decompressor 16 and an air heat exchanger 17, a first hot water circulating passage C1 for circulating the hot water between the first water refrigerant heat exchanger 9 and a hot water heater such as floor heating panels 1, 2, a second hot water circulating passage C2 for circulating the hot water between the second heat refrigerant heat exchanger 12 and a hot water storage tank 26, and a control means S1 performing the control to execute the heat exchanging between the refrigerant flowing out from the first water refrigerant heat exchanger 9 or the second water refrigerant heat exchanger 12 and the refrigerant flowing out from the air heat exchanger 17 by the internal heat exchanger 15 during hot water heating operation by the first hot water circulating passage C1, or hot water storing operation by the second hot water circulating passage C2.
Description
Technical field
The present invention relates to HFC or CO
2Heat-pump-type hot-water supply and heat-pump-type heating installation Deng refrigerant.
Background technology
As everyone knows, this heat-pump-type hot water supply heating device of the prior art is stored in the high-temperature water that obtains with the heat pump unit exchange in the heat accumulation water receptacle, and simultaneously with thermmal storage in the heat accumulation water receptacle, the high-temperature water of this container is used on heat supply water and water for bathing, and use the heating that obtains with this elevated temperature heat exchange to carry out the warm water heating with warm water, in such device, when the heating load is big, can not get the warm water of high enough temp.
In addition, the hydrophily heat exchanger by cool water media heat exchanger that heat supply water is used and heating usefulness is combined in that to carry out in the refrigerant loop of heat pump unit that stored hot water operation and warm water heating move also be known (for example patent document 1).
Yet; in this device; there is following problems: when the heating load in service of warming oneself at warm water diminishes; the temperature of returning side on recirculated water circulation road uprises; because of heat exchange is carried out insufficiently; and make the refrigerant temperature height, and make the load of compressor become big, have to stop its operation in order to protect compressor.Therefore heating with in use under the occasion of heat pump unit, heating difficult to deal with is with the high situation of temperature of returning on warm water circulation road.
Patent document 1: the spy opens the 2002-257366 communique.
Summary of the invention
Therefore the objective of the invention is to: in the device that can carry out stored hot water operation and warm water heating operation, even the cool water media heat exchanger of using at supply hot water carries out insufficiently with the heat release of the cool water media heat exchanger of heating usefulness, also can refrigerant temperature be descended, thereby can adapt to various heating loads by heat exchanger is set in addition.
For this purpose, first invention is characterised in that and comprises: in turn compressor, cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger are connected into refrigerant loop that ring-type forms, make warm water circulation road that warm water circulates between above-mentioned cool water media heat exchanger and heat accumulation water receptacle and in the heat accumulation water running that is utilizing this warm water circulation road, make above-mentioned inner heat exchanger carry out the heat exchange of refrigerant that from above-mentioned cool water media heat exchanger, flows out and the refrigerant that from above-mentioned air heat exchanger, flows out and the controller controlled.
Second invention is characterised in that and comprises: in turn with compressor, the shunt circuit of the first cool water media heat exchanger and the second cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop that ring-type forms, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, the second warm water circulation road that warm water is circulated between above-mentioned second cool water media heat exchanger and heat accumulation water receptacle, with in order to make above-mentioned inner heat exchanger carry out the controller of controlling with the heat exchange of the refrigerant that from above-mentioned air heat exchanger, flows out from the refrigerant that the above-mentioned first cool water media heat exchanger flows out in that the warm water heating that utilizes the above-mentioned first warm water circulation road is in service.
The 3rd invention is characterised in that and comprises: in turn with compressor, the shunt circuit of the first cool water media heat exchanger and the second cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop that ring-type forms, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, the second warm water circulation road that warm water is circulated between above-mentioned second cool water media heat exchanger and heat accumulation water receptacle, with in order in the heat accumulation water running that utilizes the above-mentioned second warm water circulation road, to make above-mentioned inner heat exchanger carry out the controller of controlling with the heat exchange of the refrigerant that from above-mentioned air heat exchanger, flows out from the refrigerant that the above-mentioned first cool water media heat exchanger flows out.
The 4th invention is characterised in that and comprises: make compressor in turn, the loop in parallel with second refrigerant heat exchanger with first refrigerant heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop of ring-type, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, the second warm water circulation road that warm water is circulated between above-mentioned second cool water media heat exchanger and heat accumulation water receptacle, with in service in the warm water heating that utilizes the above-mentioned first warm water circulation road and utilize in the heat accumulation water running on the above-mentioned second warm water circulation road and make above-mentioned inner heat exchanger carry out the controller that the refrigerant that flows out is controlled with the heat exchange of the refrigerant that flows out from the above-mentioned first cool water media heat exchanger and the second cool water media heat exchanger road from above-mentioned air heat exchanger.
Description of drawings
Fig. 1 is heat-pump-type hot water supply heating device whole system figure.
The specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.Fig. 1 is the system diagram of heat-pump-type hot water supply heating device whole system.In Fig. 1, A is a heat pump unit, and B is a container unit, and C1 is the first warm water circulation road of warm water heating usefulness, and C2 is the second warm water circulation road that stored hot water is used, and R is contained in the interior refrigerant loop of heat pump unit A in being.Though can be with HFC or CO
2Deng refrigerant, but at present embodiment CO
2
Heating plate under 1 and 2 floors that are provided in a side of among the first warm water circulation road C1,3 and 4 is heating remote controller under the floors that heating plate 1 and 2 is provided with under the corresponding floor (hereinafter referred to as " floor heating remote controls down "), and the current road 9A, shunt valve 10 of the moving valve 5 and 6 of heat, expansion vessel 8, the first cool water media heat exchanger 9 etc. are set in the above-mentioned first warm water circulation road C1.
Above-mentioned refrigerant loop R is by in turn using CO
2Two stage compression type compressors 11 of the tunability of refrigerant, the refrigerant flow 9A of the above-mentioned first cool water media heat exchanger 9, a stream 12A of the second cool water media heat exchanger 12, an end be connected first open and close valve 13 on the above-mentioned refrigerant flow 9A and an end be connected one time on the stream 12A second open and close valve 14, be connected with a stream 15A of the inner heat exchanger 15 of first and second open and close valves 13,14, expansion valve (decompressor) 16, air heat exchanger 17, the secondary stream 15B of inner heat exchanger 15, holder 18 is linked in sequence circlewise.
Detection is set on above-mentioned warm water circulation road C1 warms oneself with fan coil 21 with thermistor 19, flow rate regulating valve 20, the bathroom of warm water temperature from the heating of the current road 9B outflow of the first cool water media heat exchanger 9.The 22nd, the bathroom greenhouse is with remote controller (to call " bathroom heating remote control " in the following text).23 are arranged on the hot cell valve of the inlet portion of fan coil 21, the 24th, be used for moving valve by the heat that circulating pump 7 is supplied with heating plate 1,2 under the floor to the part of the warm water that flows out from expansion vessel 8, the 25th, detect the thermistor that flow into the warm water temperature in the heating plate 1,2 under the floor.
The current road 12B and the heat accumulation water receptacle 26 of the second cool water media heat exchanger 12 of the above-mentioned second warm water circulation road C2 connect into ring-type through circulating pump 27, flow rate regulating valve 29.The 30th, detection is from the thermistor of the warm water temperature of the current road 12B outflow of the second cool water media heat exchanger 12.
A stream 31A of water water heat exchanger 31 is connected on the above-mentioned heat accumulation water receptacle 26 through circulating pump 32, and bathing pool 34 is connected on the secondary stream 31B of water water heat exchanger 31 through circulating pump 33.The 35th, the heat supply water pipe on the top of connection heat accumulation water receptacle 26 is provided with mixing valve 36,38th on this hot-water line 35, feed pipe, and these feed pipe 38 bifurcateds are connected on the bottom and mixing valve 36 of heat accumulation water receptacle 26, are connected on the expansion vessel 8 through open and close valve 39 again.
When the room is warm, just heat releases hardly of heating plate 1,2 under the floor, and 50～60 ℃ high-temperature water from expansion vessel 8 supply cool water media heat exchangers 9, so in cool water media heat exchanger 9, carry out heat exchange hardly, refrigerant temperature also is a high temperature, just high load capacity is added on the compressor 11.At this, except that above-mentioned cool water media heat exchanger 9, as the cooling body setting of the refrigerant that becomes high temperature is above-mentioned inner heat exchanger 15.Because in that part of heat that this inner heat exchanger 15 is put is placed into by the refrigerant behind the air heat exchanger 17 in the same refrigerant loop R, so the heat absorption efficiency of refrigerant loop R is improved.
In addition, control device (control module) S1, the S2 that is made up of microcomputer is set respectively on heat pump unit A and container unit B.Described control device S1, S2 response from the heating of heating remote controller under the floor 3,4 and bathroom with the aperture that the temperature signal of the run signal of fan coil 21, temperature signal, thermal resistor 19,25,30 etc. carries out the operation of compressor 11 and FREQUENCY CONTROL, circulating pump 7,27 operation controls, the moving valve 5,6,24 of heat, expansion valve 16 control, the aperture control of flow rate regulating valve 20,29 etc., the following describes its action.
Floor heating operation down
When utilizing floor 1 to warm oneself, the run switch of heating remote controller 3 under the floor that is installed on this room wall etc. is connected, so, the moving valve 5 of corresponding heat is opened, circulating pump 7 operations, in the first warm water circulation road C1, warm water flows according to the order of heating plate 1 → expansion vessel 8 under the moving valve 5 → floor of the current road 9B → flow rate regulating valve 20 → heat of expansion vessel 8 → circulating pump 7 → the first cool water media heat exchangers 9.In addition, the effect of shunt valve 10 is: because open the moving valve 5 of heat and need spended time, and in order also adapting to, and to make a part of bypass of warm water when the moving valve 5 of heat breaks down, to flow through the water of pettiness quantity.
When the run switch of heating remote controller 3 is connected under making above-mentioned floor, in compressor 11 operations of heat pump unit A, open first open and close valve 13, in the R of refrigerant loop, refrigerant flows according to the order of secondary stream 15B → holder 18 → compressor 11 of stream 15A → expansion valve 16 → air heat exchanger 17 → inner heat exchanger 15 of refrigerant flow 9A → first open and close valve, the 13 → inner heat exchanger 15 of compressor 11 → the first cool water media heat exchangers 9.At this moment, because do not carry out stored hot water, and second open and close valve 14 is closed, and refrigerant does not flow in a stream 12A of cool water media heat exchanger 12.
The temperature of supplying with the warm water of heating plate under the above-mentioned floor is 60～70 ℃, for the temperature that makes the warm water that thermal resistor 19 detects reaches this temperature and carries out the FREQUENCY CONTROL of compressor 11, the aperture control of expansion valve 16 and the valve opening control of flow rate regulating valve 20.
Floor down heating control utilizes the room temperature thermal resistor (not shown) that carries on floor greenhouse remote controller 3 to detect room temperature, and according to the deviation of design temperature and room temperature, open and close controlling heat is moved valve 5, flows through under the floor warm water amount in the heating plate by control and carries out.
When simultaneously warming oneself under the plate with heating plate under the floor 2, connect by the run switch that makes heating remote controller 4 under the floor, similarly open and close controlling heat is moved valve 6, heating plate 1 and 2 is supplied with warm water under the floor simultaneously, flow through the warm water amount in the heating plate 1 and 2 under the floor by individually controlling, just can carry out indivedual controls of heating under the floor.
In when operation heating under carrying out such floor, when the room of heating warms up down on the floor, diminish from the thermal discharge of heating plate under the floor 1 and 2, just from the warm water of expansion vessel 8 to 50～60 ℃ of the current road of cool water media heat exchanger 9 9B supplies.Therefore carry out heat exchange hardly in cool water media heat exchanger 9, refrigerant temperature also becomes high temperature, and load is added in the compressor 11.As the cooling body setting of the refrigerant of such occasion is inner heat exchanger 15, absorb because be in the secondary stream 15B of the inner heat exchanger 15 on the identical refrigerant loop R once more in that part heat release of a stream 15A of inner heat exchanger 15, make efficient reduce ground lavishly and not to constitute refrigerant loop R so can have.
Bathroom heating operation
When the warm wind in the bathroom that utilizes fan coil 21 is warmed oneself, bathroom heating remote controller 22 is connected.So the moving valve 23 of the heat of fan coil 21 inlet portions is opened, circulating pump 7 operations.In the first warm water circulation road C1, warm water flows according to the order of the moving valve 23 → fan coil 21 → expansion vessel 8 of current road 9B → flow rate regulating valve 20 → heat of expansion vessel 8 → circulating pump 7 → the first cool water media heat exchangers 9.The effect of shunt valve 10 is: because open the moving valve of heat and need spended time, and in order also adapting to, and to make a part of bypass of warm water when the moving valve 23 of heat breaks down, to flow through the warm water of pettiness quantity.
The heating operation is identical down with the floor with the refrigerant circulation in the action of heat pump unit A, because do not carry out hot water storage, so second open and close valve 14 is closed, refrigerant does not flow in a stream 12A of cool water media heat exchanger 12.
Though supplying with the warm water temperature of above-mentioned fan coil 21 is 80 ℃, the warm water control that is used for this is identical with the situation of heating operation.And the room temperature thermal resistor (not shown) detection room temperature on fan coil 21 is carried in heating control utilization, control blower fan revolution, and move valve 23 by control switching heat and carry out.
Operation when warming oneself down in the floor and warms oneself in the bathroom
Utilize the heating of heating plate 1,2 at the same time and utilize bathroom when heating of fan coil 21, the run switch of remote controller 3,4,22 is separately connected.So the moving valve 5,6,23 of heat is opened, circulating pump 7 operations, in the first warm water circulation road C1, warm water is according to the current road 9B of expansion vessel 8 → circulating pump 7 → the first cool water media heat exchangers 9, and the order that flow rate regulating valve 20 → heat is moved heating plate 1,2 → expansion vessel 8 under valve 5, the 6 → floor flows.Simultaneously, the warm water order of following the moving valve 23 → fan coil 21 → expansion vessel 8 of current road 9B → flow rate regulating valve 20 → heat of expansion vessel 8 → circulating pump 7 → the first cool water media heat exchangers 9 flows.
The effect of shunt valve 10 is: because open the moving valve 5,6,23 of heat and need spended time, and in order also adapting to, and to make a part of bypass of warm water when the moving valve 5,6,23 of heat breaks down, to flow through the current of pettiness quantity.
Though utilizing the warm water temperature of thermal resistor 19 at this moment to reach this temperature control is 80 ℃, but can make the heating temperature too high as the temperature of 1,2 usefulness of heating plate under the floor with 80 ℃ warm water, in order to address this problem, and by opening the moving valve 24 of heat, make from the warm water in the expansion vessel 8 to be blended in 80 ℃ the warm water, become 60～70 ℃ and control in order to make the warm water temperature that is detected by thermistor 25.And just closing the moving valve 24 of heat when becoming low temperature during warm water in excessively mixing, carrying out open and close controlling according to the moving valve 24 of heat of the detected temperatures of thermistor 25.
Because the circulation of the action of heat pump unit A and refrigerant is that heating operation or bathroom heating operation are identical down with the floor, do not carry out heat accumulation water, so second open and close valve 14 is closed, refrigerant does not flow in a stream 12A of cool water media heat exchanger 12.
The stored hot water operation
When heat accumulation water receptacle 26 stored hot waters, circulating pump 27 operations, in the second warm water circulation road C2, the warm water that supply hot water is used flows according to the order of current road 12B → flow rate regulating valve 29 → heat accumulation water receptacle 26 of heat accumulation water receptacle 26 → circulating pump 27 → the second cool water media heat exchangers 12, is stored in the heat accumulation water receptacle 26.
In heat pump unit A, in compressor 11 operations, second open and close valve 14 is opened, and in the R of refrigerant loop, refrigerant flows according to the order of secondary stream 15B → holder 18 → compressor 11 of stream 15A → expansion valve 16 → air heat exchanger 17 → inner heat exchanger 15 of a stream 12A → inner heat exchanger 15 of compressor 11 → the second cool water media heat exchangers 12.At this moment because heating is not carried out, so first open and close valve 13 is closed, refrigerant does not flow in a stream 9A of cool water media heat exchanger 9.
Therefore, when stored hot water in heat accumulation water receptacle 26, above-mentioned inner heat exchanger 15 also carries out the heat exchange of refrigerant that flows out and the refrigerant that flows out from air heat exchanger 17 from the second cool water media heat exchanger 12, so also can adapt to the water supply of higher temperature, and can carry out the insulation of the higher temperature of whole heat accumulation water receptacle 26.
Though supplying with the temperature of the warm water of heat accumulation water receptacle 26 is 90 ℃,, and can carry out the FREQUENCY CONTROL of compressor 11, the valve opening control of expansion valve 16, the valve opening control of flow rate regulating valve 29 for the temperature that thermistor 30 is detected becomes this temperature.
The high-temperature water that is stored in the heat accumulation water receptacle 26 is adjusted to suitable temperature through mixing valve 36, as from heat supply water pipe 35 to the kitchen with the heat supply water of shower and at the hot water of bathing pool 34 etc.So, when carrying out heat supply water, just supply water to heat accumulation water receptacle 26, and in water water heat exchanger 31, carry out the heat exchange of the warm water of the high-temperature water of heat accumulation water receptacle 26 and bathing pool 34, can also the warm water of bathing pool 34 be heated again by operation circulating pump 32,32 from feed pipe 38.
Heating moves simultaneously with stored hot water
At this moment the warm water circulating path that heating is used with the circulation road and the stored hot water of warm water as described above.In the R of refrigerant loop, after first and second open and close valves 13,14 are together opened, flow according to the order of secondary stream 15B → holder 18 → compressor 11 of stream 15A → expansion valve 16 → air heat exchanger 17 → inner heat exchanger 15 of a stream 12A → inner heat exchanger 15 of the refrigerant loop 9A of compressor 11 → the first cool water media heat exchangers 9 and the second cool water media heat exchanger 12.Much less, at this moment in the first cool water media heat exchanger 9, the second cool water media heat exchanger 12 and inner heat exchanger 15, carry out heat exchange.
In addition, to reach above-mentioned target temperature respectively in order making in thermistor 19,25,30, and to carry out the FREQUENCY CONTROL of compressor 11, the valve opening control of expansion valve 16, the valve opening control of flow rate regulating valve 20,29.Yun Hang occasion makes compressor 11 as far as possible with the ability operation of maximum at the same time, obtain sufficient ability so that can and store up hot water side in the heating side.
Though above with regard to the embodiments of the present invention explanation, but according to above-mentioned explanation, for those skilled in the art, various alternatives, modification or modification are possible, are included in above-mentioned various alternatives, modification or modification in the scope of main idea of the present invention.
Above-mentioned the present invention is in the device that can carry out stored hot water and heating operation, even the heat release in the cool water media heat exchanger of supplying with hot water the cool water media heat exchanger of using and the usefulness of warming oneself is carried out insufficiently, also can refrigerant temperature be descended, thereby can adapt to various heating loads by other heat exchanger.
Claims (4)
1 one kinds of heat-pump-type hot-water supplies is characterized in that comprising: in turn compressor, cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger connected into refrigerant loop that ring-type forms, make warm water circulation road that warm water circulates and the controller of controlling in order to make above-mentioned inner heat exchanger carry out the heat exchange of refrigerant that flows out and the refrigerant that flows out in the heat accumulation water running that is utilizing this warm water circulation road from above-mentioned cool water media heat exchanger from above-mentioned air heat exchanger between above-mentioned cool water media heat exchanger and heat accumulation water receptacle.
2 one kinds of heat-pump-type hot water supply heating devices is characterized in that comprising: in turn with compressor, the shunt circuit of the first cool water media heat exchanger and the second cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop that ring-type forms, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, the second warm water circulation road that warm water is circulated between above-mentioned second cool water media heat exchanger and heat accumulation water receptacle, with in order to make above-mentioned inner heat exchanger carry out the controller of controlling with the heat exchange of the refrigerant that from above-mentioned air heat exchanger, flows out from the refrigerant that the above-mentioned first cool water media heat exchanger flows out in that the warm water heating that utilizes the above-mentioned first warm water circulation road is in service.
3 one kinds of heat-pump-type hot water supply heating devices is characterized in that comprising: in turn with compressor, the shunt circuit of the first cool water media heat exchanger and the second cool water media heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop that ring-type forms, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, make the second warm water circulation road of warm water in above-mentioned second cool water media heat exchanger and the circulation of heat accumulation water receptacle, with in order in the heat accumulation water running that utilizes the above-mentioned second warm water circulation road, to make above-mentioned inner heat exchanger carry out the controller of controlling with the heat exchange of the refrigerant that from above-mentioned air heat exchanger, flows out from the refrigerant that the above-mentioned second cool water media heat exchanger flows out.
4 one kinds of heat-pump-type hot water supply heating devices is characterized in that comprising: in turn with compressor, the loop that first refrigerant heat exchanger is in parallel with second refrigerant heat exchanger, inner heat exchanger, decompressor and air heat exchanger connect into the refrigerant loop of ring-type, the first warm water circulation road that warm water is circulated between above-mentioned first cool water media heat exchanger and warm water warmer, the second warm water circulation road that warm water is circulated between above-mentioned second cool water media heat exchanger and heat accumulation water receptacle, with in service in the warm water heating that utilizes the above-mentioned first warm water circulation road and utilize in the heat accumulation water running on the above-mentioned second warm water circulation road and make above-mentioned inner heat exchanger carry out the controller that the refrigerant that flows out is controlled with the heat exchange of the refrigerant that flows out from the above-mentioned first cool water media heat exchanger and the second cool water media heat exchanger road from above-mentioned air heat exchanger.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP010496/2003 | 2003-01-20 | ||
| JP010496/03 | 2003-01-20 | ||
| JP2003010496A JP3869801B2 (en) | 2003-01-20 | 2003-01-20 | Heat pump water heater / heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1517604A CN1517604A (en) | 2004-08-04 |
| CN1244774C true CN1244774C (en) | 2006-03-08 |
Family
ID=32899669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410002819 Expired - Fee Related CN1244774C (en) | 2003-01-20 | 2004-01-17 | Heat pump type hot water supply device and heat pump type hot water supply heating device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3869801B2 (en) |
| CN (1) | CN1244774C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4215699B2 (en) * | 2004-10-01 | 2009-01-28 | 三洋電機株式会社 | Heat pump water heater / heater |
| JP5308783B2 (en) * | 2008-07-31 | 2013-10-09 | 日立アプライアンス株式会社 | Heat pump water heater |
| KR101093305B1 (en) * | 2009-03-30 | 2011-12-14 | 엘지전자 주식회사 | Heater assembly for Hot water circulation system associated with heat pump |
| EP2486331B1 (en) * | 2009-08-25 | 2016-04-27 | Danfoss A/S | Heat storage system |
| CN104728820B (en) * | 2013-12-18 | 2016-09-07 | 苟仲武 | Heat pump electricity steam water boiler |
| CN107166508B (en) * | 2017-06-21 | 2020-07-21 | 海信（山东）空调有限公司 | Heat pump type floor heating machine control method and heat pump type floor heating machine |
-
2003
- 2003-01-20 JP JP2003010496A patent/JP3869801B2/en not_active Expired - Fee Related
-
2004
- 2004-01-17 CN CN 200410002819 patent/CN1244774C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1517604A (en) | 2004-08-04 |
| JP3869801B2 (en) | 2007-01-17 |
| JP2004225926A (en) | 2004-08-12 |
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Granted publication date: 20060308 Termination date: 20140117 |