CN201463394U - Anti-low-pressure heat recovery water source heat pump unit - Google Patents
Anti-low-pressure heat recovery water source heat pump unit Download PDFInfo
- Publication number
- CN201463394U CN201463394U CN 200920091364 CN200920091364U CN201463394U CN 201463394 U CN201463394 U CN 201463394U CN 200920091364 CN200920091364 CN 200920091364 CN 200920091364 U CN200920091364 U CN 200920091364U CN 201463394 U CN201463394 U CN 201463394U
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- China
- Prior art keywords
- valve
- outlet
- refrigeration
- water source
- pipe
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- 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.)
- Expired - Fee Related
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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 utility model discloses an anti-low-pressure heat recovery water source heat pump unit, which comprises a compressor, a four-way reversing valve, a refrigeration evaporator, a refrigeration condenser, an inflation valve, a refrigeration electromagnetic valve, a heating electromagnetic valve and the like; the outlet of the compressor is respectively communicated with the first pipe orifice of the four-way reversing valve, the inlet of the refrigeration electromagnetic valve and the inlet of the heating electromagnetic valve through a bush-type heat exchanger inner pipe; the second pipe orifice of the four-way reversing valve is communicated with a tube-side outlet of the refrigeration evaporator; the third pipe orifice of the four-way reversing valve is communicated with the inlet of the compressor; the fourth pipe orifice of the four-way reversing valve is communicated with a tube-side inlet of the refrigeration condenser; the tube-side inlet of the refrigeration evaporator is respectively communicated with the outlet of the inflation valve and the outlet of the refrigeration electromagnetic valve through a throttling device; and the inlet of the inflation valve is respectively communicated with the tube-side outlet of the refrigeration condenser and the outlet of the heating electromagnetic valve through a throttling device. The anti-low-pressure heat recovery water source heat pump unit has the advantages that the malfunction stop phenomenon of the water source heat pump unit caused by the over-low condensing pressure of the system can be prevented.
Description
Technical field
The utility model relates to source pump, especially relates to anti-low pressure recuperation of heat water source source pump.
Background technology
The water source heat pump units that is used for places such as hotel, hotel, dining room, hospital, dwelling house at present possesses in refrigeration or when heating more and reclaims the heat energy function.The heat that condenser is given out by double pipe heat exchanger is used to produce life or produces hot water, has so both improved energy utilization rate, has reduced energy resource consumption and to the pollution of environment, has reduced operating cost simultaneously again.But in heat transfer process; because the effectively increase of condensing heat-exchange area; cause system condensing pressure to reduce; particularly condensing pressure is lower when the coolant-temperature gage that enters heat recovering heat exchanger and condenser is low; cause that expansion valve crosses that liquid measure reduces, compressor air suction pressure reduces, cause the water source heat pump units low-voltage variation to be shut down and cisco unity malfunction.
The utility model content
The utility model purpose is to provide a kind of reliable anti-low pressure recuperation of heat water source source pump.
For achieving the above object, the utility model can be taked following technical proposals:
Anti-low pressure recuperation of heat described in the utility model water source source pump, it comprises compressor; Described compressor outlet by pipe in the double pipe heat exchanger respectively with first mouth of pipe of four-way change-over valve, the import of refrigeration magnetic valve, heat the magnetic valve import and be connected; Second mouth of pipe of described four-way change-over valve is connected with the outlet of refrigerating evaporator tube side; The 3rd mouth of pipe of four-way change-over valve is connected with compressor inlet; The 4th mouth of pipe of four-way change-over valve is connected with the import of refrigerant condenser tube side; The import of described refrigerating evaporator tube side exports with expansion valve respectively, is connected with the refrigeration electromagnetic valve outlet by throttling arrangement; Described expansion valve import respectively with refrigerant condenser tube side outlet, by throttling arrangement with heat electromagnetic valve outlet and be connected.
The utility model advantage is when improving refrigerant liquid degree of supercooling and heat exchanger heat exchange efficiency, avoids causing water source heat pump units to shut down the generation of phenomenon because of system condensing pressure reduces.When water source heat pump units runs on the cooling condition recuperation of heat, close the described magnetic valve that heats the heat source side water pump is shut down, open described refrigeration magnetic valve simultaneously, refrigerant liquid enters refrigerating evaporator after described throttling arrangement throttling.And when water source heat pump units runs on heating condition and prepares hot water; closing the refrigeration magnetic valve uses the water pump of side to shut down that (this moment, unit wouldn't heat supply; because of recuperation of heat can be finished at short notice, so the termination of pumping operation is very little to system's heat supply influence), open and heat magnetic valve.Refrigerant liquid enters after the throttling arrangement throttling and heats evaporimeter.Therefore efficiently solve internal conversion formula water source heat pump units existing the problems referred to above when recuperation of heat, and control operation is easy to realize.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, anti-low pressure recuperation of heat described in the utility model water source source pump, it comprises compressor 1, four-way change-over valve 3, refrigerating evaporator 6, refrigerant condenser 7, double pipe heat exchanger 2, expansion valve 8, heats magnetic valve 5, refrigeration magnetic valve 4, refrigerant condenser 7; The interior pipe of described compressor 1 outlet by double pipe heat exchanger 2 respectively with first mouth of pipe 3a, 4 imports of refrigeration magnetic valve of four-way change-over valve 3, heat magnetic valve 5 imports and be connected; Second mouth of pipe 3b of described four-way change-over valve 3 is connected with the outlet of refrigerating evaporator 6 tube sides; The 3rd mouth of pipe 3c of four-way change-over valve 3 is connected with compressor 1 import; The 4th mouth of pipe 3d of four-way change-over valve 3 is connected with refrigerant condenser 7 tube side imports; Described refrigerating evaporator 6 tube side imports export with expansion valve 8 respectively, are connected with 4 outlets of refrigeration magnetic valve by throttling arrangement 9; Described expansion valve 8 imports respectively with refrigerant condenser 7 tube sides outlets, by throttling arrangement 10 with heat magnetic valve 5 and export and be connected; Described throttling arrangement 9 and throttling arrangement 10 all adopt capillary.
Claims (2)
1. anti-low pressure recuperation of heat water source source pump, it comprises compressor (1), four-way change-over valve (3), refrigerating evaporator (6), refrigerant condenser (7), double pipe heat exchanger (2), expansion valve (8), heats magnetic valve (5), refrigeration magnetic valve (4); It is characterized in that: described compressor (1) outlet by pipe in the double pipe heat exchanger (2) respectively with first mouth of pipe (3a), magnetic valve (4) import of freezing of four-way change-over valve (3), heat magnetic valve (5) import and be connected; Second mouth of pipe (3b) of described four-way change-over valve (3) is connected with the outlet of refrigerating evaporator (6) tube side; The 3rd mouth of pipe (3c) of four-way change-over valve (3) is connected with compressor (1) import; The 4th mouth of pipe (3d) of four-way change-over valve (3) is connected with refrigerant condenser (7) tube side import; Described refrigerating evaporator (6) tube side import exports with expansion valve (8) respectively, is connected with refrigeration magnetic valve (4) outlet by throttling arrangement (9); Described expansion valve (8) import respectively with refrigerant condenser (7) tube side outlet, by throttling arrangement (10) with heat magnetic valve (5) and export and be connected.
2. anti-low pressure recuperation of heat according to claim 1 water source source pump is characterized in that: described throttling arrangement (9) and throttling arrangement (10) all adopt capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920091364 CN201463394U (en) | 2009-07-08 | 2009-07-08 | Anti-low-pressure heat recovery water source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920091364 CN201463394U (en) | 2009-07-08 | 2009-07-08 | Anti-low-pressure heat recovery water source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463394U true CN201463394U (en) | 2010-05-12 |
Family
ID=42390745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920091364 Expired - Fee Related CN201463394U (en) | 2009-07-08 | 2009-07-08 | Anti-low-pressure heat recovery water source heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936618A (en) * | 2010-08-27 | 2011-01-05 | 殷尧其 | Internal switching water source heat pump unit with heat recovery |
-
2009
- 2009-07-08 CN CN 200920091364 patent/CN201463394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936618A (en) * | 2010-08-27 | 2011-01-05 | 殷尧其 | Internal switching water source heat pump unit with heat recovery |
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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 |
Granted publication date: 20100512 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |