CN102287973A - System for recycling waste heat generated by precooling heat pump before throttling in integrated heat pump water heater - Google Patents
System for recycling waste heat generated by precooling heat pump before throttling in integrated heat pump water heater Download PDFInfo
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- CN102287973A CN102287973A CN201110200091XA CN201110200091A CN102287973A CN 102287973 A CN102287973 A CN 102287973A CN 201110200091X A CN201110200091X A CN 201110200091XA CN 201110200091 A CN201110200091 A CN 201110200091A CN 102287973 A CN102287973 A CN 102287973A
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- heat pump
- pipeline
- evaporator
- condenser
- water heater
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a system for recycling waste heat generated by precooling a heat pump before throttling in an integrated heat pump water heater. The system comprises a condenser, a throttle valve and an evaporator, wherein all the devices are connected by pipelines to form a circle; a condenser pipe is additionally arranged in the evaporator; the outlet of the condenser is connected with the inlet of the condenser pipe which is additionally arranged in the evaporator through a pipeline; the outlet of the condenser pipe which is additionally arranged in the evaporator is connected with the inlet of the throttle valve through a pipeline; and the outlet of the throttle valve is connected with the inlet of the evaporation pipe of the evaporator through a pipeline. The system can effectively reduce the temperature of a refrigerant before throttling, improve the evaporation efficiency of the refrigerant after throttling, recover the waste heat of the refrigerant after condensation through the evaporator and reduce heat loss of the system. The two advantages ensure that the heat pump water heater maintains ideal coefficient of performance (COP) all the time in the whole water temperature rising process and the decreasing speed of a COP value is obviously reduced.
Description
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Technical field
The present invention relates to the heat pump circulating system of integrated heat pump water heater, be specifically related to the preceding precooling residual neat recovering system of heat pump throttling of integrated heat pump water heater.
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Background technology
Teat pump boiler utilizes contrary Carnot's principle exactly, by medium, heat is delivered to the equipment in the water of high temperature from cryogenic object.The integrated heat pump water heater is integrated in one compressor, evaporimeter, condenser, choke valve exactly, and it is more split type not only is convenient to install and saves space, avoided the leakage fluorine risk of split type mounting interface, and noise is little, easy to use.Integrated heat pump water heater leaving water temperature all requires to reach about 60 degrees centigrade at present, most of Teat pump boiler adopts R134a or R417 cold-producing medium, when heat pump is worked, can efficiently heat water temperature fast, but continuous rising along with water temperature, temperature also constantly increases after the condensation of cold-producing medium, can reach more than 65-70 degree centigrade
This not only can cause a large amount of waste heat losses, and along with condensation temperature raises, the throttling and evaporation effect constantly descends, thereby causes the product Energy Efficiency Ratio to reduceThis phenomenon causes Teat pump boiler when work, and along with the continuous growth of water temperature, Energy Efficiency Ratio (COP value) reduces continuously and healthily.Heat pump circulating system of the prior art as shown in Figure 1.
Integrated heat pump water heater Energy Efficiency Ratio (COP value) (about as 20 degrees centigrade) Energy Efficiency Ratio when water temperature is low is very high at present, can reach about 4.5, but water temperature is difficult to break through 3.8 from the average Energy Efficiency Ratio of 10-60 degree centigrade overall process.
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Summary of the invention
At above-mentioned problems of the prior art, the objective of the invention is to propose a kind of preceding precooling residual neat recovering system of heat pump throttling of integrated heat pump water heater, it has guaranteed that Teat pump boiler remains desirable Energy Efficiency Ratio in whole water temperature uphill process, and COP value decrease speed obviously reduces.
The technical scheme that the present invention is taked for its purpose of realization: precooling residual neat recovering system before the heat pump throttling of integrated heat pump water heater, comprise condenser, choke valve and evaporimeter, connect and compose circulation by pipeline between each device, set up condenser pipe in the described evaporimeter, the input port of the condenser pipe that the delivery outlet of described condenser is set up in pipeline and evaporimeter is connected, the delivery outlet of the condenser pipe of setting up in the evaporimeter is connected with described choke valve input port through pipeline, and described choke valve delivery outlet is connected with the evaporation tube input port of described evaporimeter through pipeline.
As shown from the above technical solution, the present invention can effectively reduce the preceding temperature of cold-producing medium throttling, and the evaporation efficiency after the throttling of raising cold-producing medium with the waste heat of cold-producing medium after the condensation, reclaims by evaporimeter in addition, has reduced the system thermal loss.These two advantages have guaranteed that Teat pump boiler remains desirable Energy Efficiency Ratio in whole water temperature uphill process, and COP value decrease speed obviously reduces.
Description of drawings
The present invention is further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a heat pump structural representation of the prior art;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
Referring to Fig. 2, the present invention is by compressor 1, condenser 2, choke valve 3 and evaporimeter 4 constitute, connect and compose circulation by pipeline 5 therebetween, set up condenser pipe 6 in the evaporimeter 4, the input port of the condenser pipe 6 that the delivery outlet of condenser 2 is set up in pipeline and evaporimeter 4 is connected, the delivery outlet of condenser pipe 6 is connected with choke valve 3 input ports through pipeline, choke valve 3 delivery outlets are connected with evaporation tube 7 input ports of evaporimeter through pipeline, evaporation tube 7 delivery outlets are connected through the input port of pipeline with compressor 1, the delivery outlet of compressor 1 is connected through the input port of pipeline with condenser 2, so constitutes heat pump circulating system.
The present invention according to condensation of refrigerant after high-temperature condition before the throttling, adopt pre-refrigeration technique before the throttling, and existing evaporimeter also done improvement, be special use of the present invention, as shown in Figure 2.Condenser pipe 6 needs according to calculating and test the selected length that is fit to through the length of evaporimeter.This structure reduces refrigerant temperature, simultaneously waste heat is used for evaporation.
Raising that can be effective behind the present invention the throttling and evaporation effect, improved the evaporation and heat-exchange efficient of evaporimeter, and improved the system works time limit to a certain extent.Do not adopt the preceding pre-refrigeration technique of throttling, water temperature can only reach about 3.8 from the 10-60 degree centigrade of average Energy Efficiency Ratio of overall process; And efficiency specific energy of the present invention reaches more than 4.5..
Claims (1)
1. precooling residual neat recovering system before the heat pump throttling of integrated heat pump water heater, comprise condenser, choke valve and evaporimeter, connect and compose circulation by pipeline between each device, it is characterized in that: set up condenser pipe in the described evaporimeter, the input port of the condenser pipe that the delivery outlet of described condenser is set up in pipeline and evaporimeter is connected, the delivery outlet of the condenser pipe of setting up in the evaporimeter is connected with described choke valve input port through pipeline, and described choke valve delivery outlet is connected with the evaporation tube input port of described evaporimeter through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110200091XA CN102287973A (en) | 2011-07-18 | 2011-07-18 | System for recycling waste heat generated by precooling heat pump before throttling in integrated heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110200091XA CN102287973A (en) | 2011-07-18 | 2011-07-18 | System for recycling waste heat generated by precooling heat pump before throttling in integrated heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287973A true CN102287973A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110200091XA Pending CN102287973A (en) | 2011-07-18 | 2011-07-18 | System for recycling waste heat generated by precooling heat pump before throttling in integrated heat pump water heater |
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| CN (1) | CN102287973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180432A (en) * | 2015-09-24 | 2015-12-23 | 东莞市卓求电器科技有限公司 | Heating method of indoor heating heat-pump water heater and system with indoor heating heat-pump water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733271Y (en) * | 2004-08-06 | 2005-10-12 | 邵才宝 | Air source heat pump |
| CN2932209Y (en) * | 2006-06-15 | 2007-08-08 | 湖南华天网络通信设备有限公司 | Small heating pump cool/warm air-conditioning water heater set |
| CN201327185Y (en) * | 2008-11-28 | 2009-10-14 | 滁州扬子必威中央空调有限公司 | Medium temperature directly-heated air-source heat pump hot water unit |
| CN101762015A (en) * | 2008-12-25 | 2010-06-30 | 姜衍礼 | Heat pump water heater suitable for use in northern regions |
| CN201535575U (en) * | 2009-09-28 | 2010-07-28 | 浙江家得乐太阳能有限公司 | Air source heat pump water heater with flexible defrosting function |
| CN202204214U (en) * | 2011-07-18 | 2012-04-25 | 德华科电器科技(安徽)有限公司 | Precooling waste heat recovery system before throttling of heat pump of integrated heat-pump water heater |
-
2011
- 2011-07-18 CN CN201110200091XA patent/CN102287973A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733271Y (en) * | 2004-08-06 | 2005-10-12 | 邵才宝 | Air source heat pump |
| CN2932209Y (en) * | 2006-06-15 | 2007-08-08 | 湖南华天网络通信设备有限公司 | Small heating pump cool/warm air-conditioning water heater set |
| CN201327185Y (en) * | 2008-11-28 | 2009-10-14 | 滁州扬子必威中央空调有限公司 | Medium temperature directly-heated air-source heat pump hot water unit |
| CN101762015A (en) * | 2008-12-25 | 2010-06-30 | 姜衍礼 | Heat pump water heater suitable for use in northern regions |
| CN201535575U (en) * | 2009-09-28 | 2010-07-28 | 浙江家得乐太阳能有限公司 | Air source heat pump water heater with flexible defrosting function |
| CN202204214U (en) * | 2011-07-18 | 2012-04-25 | 德华科电器科技(安徽)有限公司 | Precooling waste heat recovery system before throttling of heat pump of integrated heat-pump water heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180432A (en) * | 2015-09-24 | 2015-12-23 | 东莞市卓求电器科技有限公司 | Heating method of indoor heating heat-pump water heater and system with indoor heating heat-pump water heater |
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Application publication date: 20111221 |