CN202885327U - Overlap type heat pump system - Google Patents
Overlap type heat pump system Download PDFInfo
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- CN202885327U CN202885327U CN 201220547018 CN201220547018U CN202885327U CN 202885327 U CN202885327 U CN 202885327U CN 201220547018 CN201220547018 CN 201220547018 CN 201220547018 U CN201220547018 U CN 201220547018U CN 202885327 U CN202885327 U CN 202885327U
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Abstract
The utility model discloses an overlap type heat pump system, and belongs to a heat pump. A low temperature level circulating device is formed by connecting an evaporative condenser, a first compressor, an evaporimeter, an expansion valve and a second evaporative condenser through a pipeline. A high temperature circulating device is formed by connecting the evaporative condenser, a second compressor, a first condenser and the expansion valve through the pipeline. A condenser water system water route is formed by connecting a condensate water route and a condensate water route valve. The second condenser which is connected at an outlet of a low temperature working medium of the evaporative condenser in series is connected with the first condenser through the condensate water route in series. According to the overlap type heat pump system, heat which is hard to match is released through the second condenser, and the amount of releasing can be adjusted at will at a certain range. Water heated by the second condenser flows into the first condenser, so that overall efficiency is improved.
Description
Technical field
The utility model belongs to a kind of heat pump, particularly a kind of Cascade type heat pump system of large temperature difference intensification.
Background technology
Along with popularizing of heat pump assembly, heat pump is day by day urgent in the development and application of high-temperature field, will more and more come into one's own as a kind of form-cascade type heat pump of high temperature heat pump.Cascade type heat pump, major function are the heat pump assemblies that heats up as the large temperature difference, and cascade type heat pump at first utilizes the low temperature level that temperature is done preliminary lifting, produces required temperature by the high temperature level again, and wherein evaporative condenser is the jockey of low temperature level and high temperature level.The present existing subject matter of Cascade type heat pump system has: one, the heat exchange of the evaporative condenser in the cascade type heat pump is by the spontaneous adjusting of working medium operating mode, during cascade type heat pump work, the heat release of low temperature level must be strictly and the heat absorption of high temperature level be complementary, because the regulating power of the working medium operating mode of existing cascade type heat pump is limited, thereby cause the evaporative condenser heat exchange to be difficult to coupling, cause thus regulating working conditions and balance in the evaporative condenser all comparatively difficult, and because the work characteristics of cascade type heat pump is two steps to finish intensification, cause the cascade type heat pump performance to be difficult to reach a higher level.Two, cascade type heat pump is because the form of itself is limit, and heating needs to promote by two compressors, so unit efficiency is usually lower.
The utility model content
The purpose of this utility model is the problem that exists for existing cascade type heat pump, a kind of simple in structure, reliable Cascade type heat pump system is proposed, the cascade type heat pump that employing contains the second condenser can overcome the above problems effectively, the heat that is difficult to mate can be discharged by the second condenser, and burst size can be regulated arbitrarily within the specific limits, pass into high temperature level condenser through the water after the heating of the second condenser, this method has also improved overall efficiency.
The purpose of this utility model is achieved through the following technical solutions: a kind of Cascade type heat pump system, it is characterized in that: it comprises low temperature level EGR, high temperature level EGR and Water in Condenser system water route, said low temperature level EGR is connected by pipeline by evaporative condenser, the first compressor, evaporimeter, expansion valve and the condenser of being connected, high temperature level EGR is connected by pipeline by evaporative condenser, the second compressor, the first condenser, expansion valve, and said Water in Condenser system water route condensation water route and condensation Water path valve connect to form; Said evaporative condenser is provided with the import of low temperature level working medium, low temperature level sender property outlet, the working medium import of high temperature level and high temperature level sender property outlet, the second condenser of the low temperature level sender property outlet place series connection of evaporative condenser is connected with the first condenser by the condensation water route, and the second condenser connects the condensation Water path valve.
Advantage of the present utility model and beneficial effect are:
1, series connection the second condenser behind the evaporative condenser of low temperature level EGR is used for regulating unnecessary heat;
2, the water side outlet of the second condenser directly accesses the first condenser of high temperature level EGR side, and the second condenser plays the effect of preheating;
3, the heat exchange adjusting by the second condenser can reach the heat exchange balance that makes in the evaporative condenser, and can be so that the heating efficiency of system is highly improved;
4, make things convenient for regulating working conditions and control, also heating water has been produced pre-heat effect simultaneously, greatly improved the overall performance of Cascade type heat pump system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1-the first compressor, 2-the second compressor, 3-evaporimeter, 4-evaporative condenser, 5-the first condenser, 6-the second condenser, 7-expansion valve, 8-expansion valve, 9-condensation water route, 10-condensation Water path valve.
The specific embodiment
Embodiment: as shown in the figure, a kind of Cascade type heat pump system, it comprises low temperature level EGR, high temperature level EGR and Water in Condenser system water route, said low temperature level EGR is connected by pipeline by evaporative condenser 4, the first compressor 1, evaporimeter 3, expansion valve 7 and the condenser 6 of being connected, high temperature level EGR is connected by pipeline by evaporative condenser 4, the second compressor 2, the first condenser 5, expansion valve 8, and said Water in Condenser system water route condensation water route 9 and condensation Water path valve 10 connect to form; Said evaporative condenser 4 is provided with low temperature level working medium import A, low temperature level sender property outlet B, high temperature level working medium import C and high temperature level sender property outlet D, the second condenser 6 of the low temperature level sender property outlet B place series connection of evaporative condenser 4 is connected with the first condenser 5 by condensation water route 9, the second condenser 6 connects condensation Water path valve 10, and condensation water route 9 has adjustability by means of condensation Water path valve 10.
Operation principle:
Select working medium, high temperature level EGR is selected cold-producing medium R407C, and low temperature level EGR is selected cold-producing medium R23, low temperature side uses the second condenser, cold-producing medium R23 becomes high temperature and high pressure steam through the first compressor compresses, passes through evaporative condenser, the condensation heat release, through the second condenser heat release, cooling water absorbs the working medium liberated heat, when obtaining preheating, balance low temperature side heat, be condensed into saturated liquid state, through expansion valve adiabatic expansion, pressure decreased, form low mass dryness fraction steam, introduce evaporator evaporation, mass dryness fraction increases, and absorbs the heat of the air-conditioner circulating water release of the evaporimeter of flowing through, form the damp steam of high mass dryness fraction, introduce the first compressor and carry out adiabatic compression, the working medium mass dryness fraction increases pressure and raises, and temperature raises, form the steam of HTHP, finish the low temperature side circulation; High temperature side cold-producing medium R407C absorbs the low temperature side liberated heat by evaporative condenser, is evaporated to the steam of high mass dryness fraction, through the second compressor compresses, form high temperature and high pressure steam, through the first condenser heat release, at this moment, cooling water through the preheating of the second condenser after with the first condenser in cold-producing medium R407C heat exchange, temperature raises, cold-producing medium R407C is condensed into saturated liquid state, through expansion valve, pressure decreased forms low mass dryness fraction steam, introduces evaporative condenser again, finishes the high temperature side circulation.
Claims (1)
1. Cascade type heat pump system, it is characterized in that: it comprises low temperature level EGR, high temperature level EGR and Water in Condenser system water route, said low temperature level EGR is connected by pipeline by evaporative condenser, the first compressor, evaporimeter, expansion valve and the condenser of being connected, high temperature level EGR is connected by pipeline by evaporative condenser, the second compressor, the first condenser, expansion valve, and said Water in Condenser system water route condensation water route and condensation Water path valve connect to form; Said evaporative condenser is provided with the import of low temperature level working medium, low temperature level sender property outlet, the working medium import of high temperature level and high temperature level sender property outlet, the second condenser of the low temperature level sender property outlet place series connection of evaporative condenser is connected with the first condenser by the condensation water route, and the second condenser connects the condensation Water path valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547018 CN202885327U (en) | 2012-10-23 | 2012-10-23 | Overlap type heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547018 CN202885327U (en) | 2012-10-23 | 2012-10-23 | Overlap type heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202885327U true CN202885327U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220547018 Expired - Fee Related CN202885327U (en) | 2012-10-23 | 2012-10-23 | Overlap type heat pump system |
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| CN (1) | CN202885327U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335448A (en) * | 2013-05-31 | 2013-10-02 | 上海瀚恩节能设备有限公司 | Binary compression heat pump system for producing high-temperature hot water |
| CN106196683A (en) * | 2016-08-10 | 2016-12-07 | 燕园德普科技（北京）有限公司 | A kind of super low temperature heat pump system for heating and control method thereof |
| CN106642808A (en) * | 2016-12-23 | 2017-05-10 | 燕园德普科技（北京）有限公司 | Heating heat pump system used in ultralow-temperature environment |
| WO2018045507A1 (en) * | 2016-09-07 | 2018-03-15 | 徐生恒 | Air-source two-stage heat-pump air-conditioning system |
| CN109114833A (en) * | 2017-06-22 | 2019-01-01 | 华北电力大学（保定） | A kind of cascade high-temperature heat pump system |
| CN109592874A (en) * | 2018-11-08 | 2019-04-09 | 天津大学 | A kind of energy-saving sludge drying system |
| CN110260550A (en) * | 2019-07-15 | 2019-09-20 | 中国建筑科学研究院有限公司 | Cascade high-temperature heat pump unit |
-
2012
- 2012-10-23 CN CN 201220547018 patent/CN202885327U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335448A (en) * | 2013-05-31 | 2013-10-02 | 上海瀚恩节能设备有限公司 | Binary compression heat pump system for producing high-temperature hot water |
| CN106196683A (en) * | 2016-08-10 | 2016-12-07 | 燕园德普科技（北京）有限公司 | A kind of super low temperature heat pump system for heating and control method thereof |
| WO2018045507A1 (en) * | 2016-09-07 | 2018-03-15 | 徐生恒 | Air-source two-stage heat-pump air-conditioning system |
| CN106642808A (en) * | 2016-12-23 | 2017-05-10 | 燕园德普科技（北京）有限公司 | Heating heat pump system used in ultralow-temperature environment |
| CN109114833A (en) * | 2017-06-22 | 2019-01-01 | 华北电力大学（保定） | A kind of cascade high-temperature heat pump system |
| CN109592874A (en) * | 2018-11-08 | 2019-04-09 | 天津大学 | A kind of energy-saving sludge drying system |
| CN109592874B (en) * | 2018-11-08 | 2023-11-17 | 天津大学 | Energy-saving sludge drying system |
| CN110260550A (en) * | 2019-07-15 | 2019-09-20 | 中国建筑科学研究院有限公司 | Cascade high-temperature heat pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20161023 |