CN2515605Y - Water source heat pump cold water machine set - Google Patents
Water source heat pump cold water machine set Download PDFInfo
- Publication number
- CN2515605Y CN2515605Y CN 01273072 CN01273072U CN2515605Y CN 2515605 Y CN2515605 Y CN 2515605Y CN 01273072 CN01273072 CN 01273072 CN 01273072 U CN01273072 U CN 01273072U CN 2515605 Y CN2515605 Y CN 2515605Y
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- temperature
- condenser
- compressor
- water
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Abstract
The utility model discloses a water source heat pump cold water unit, comprising a compressor, a condenser, an expansion valve and an evaporator. The utility model is characterized in that a heat collecting device is additionally arranged between the refrigeration compressor and the condenser so that over-hot vapor of high temperature and high pressure discharged from the compressor can be cooled into vapor of middle temperature and high pressure by the heat collecting device, and then the hot water flowing out of the condenser, whose temperature is lower than the condensing temperature by 5 DEG C, can be heated for a second time to make the temperature of the hot water flowing out of the condenser be lower than the condensing temperature by 1.0 to 1.2 DEG C; and then cooling capacity of the saturated vapor of high pressure inside the condenser to absorb the system cycling lower temperature water can be cooled for a second time. With such processes cycled continually, the utility model improves the temperature of the hot water without improving the condensing temperature, and thus the utility model improves the heating efficiency to save energy, and improves the reliability of the compressor.
Description
One, technical field
The utility model relates to a kind of water resource heat pump handpiece Water Chilling Units, particularly a kind of water resource heat pump handpiece Water Chilling Units that adopts heat collector.
Two, background technology
Having now and utilizing the heat pump handpiece Water Chilling Units at face of land low temperature shallow seated groundwater, spent hot water or other water source is to be made of compressor, condenser, evaporimeter, throttle mechanism etc., and the high temperature and high pressure gas that compressor is discharged directly enters condenser heating heating hot water.This equipment will improve heat supplication and consumption coolant-temperature gage (reaching between 50 ℃～55 ℃) at northern area, needs to improve the condensation temperature (by industry standard, the design of heat exchanger temperature difference is 5 ℃, and promptly when the hot water temperature reached 50 ℃, condensation temperature need reach 55 ℃) of refrigeration system operation.And 1 ℃ of the every increase of condensation temperature, wasted work increases by 1.8%, thermic load reduces 0.72%, also be decrease in efficiency 2.5%, thereby reduced the efficient of system's operation, increased user's operating cost, and because the raising of condensation temperature, cause compressor exhaust temperature to raise, the operation pressure ratio increases, and the reliability of compressor operating reduces.
Three, summary of the invention
1, goal of the invention: the purpose of this utility model provides and a kind ofly can raise the efficiency, the energy savings and the reliability of system operation that improves, the water resource heat pump handpiece Water Chilling Units of user's operation and maintenance cost of reducing.
2, technical scheme: for achieving the above object, the utility model comprises compressor, condenser, expansion valve and evaporimeter, it is characterized in that it also comprises heat collector, its connected mode is: the high temperature and high pressure gas that compressor is discharged enters heat collector, warm high-pressure saturated steam enters condenser and is condensed into subcooled liquid in heat collector is cooled, enters in the evaporimeter to become superheated steam behind the heat that absorbs refrigerating medium and be inhaled in the compressor after expansion valve throttling step-down again.Between condenser and evaporimeter, be connected with device for drying and filtering and magnetic valve.
Operation principle of the present utility model is: the high temperature and high pressure gas that compressor is discharged is introduced into heat collector, warm high-pressure saturated steam enters condenser in becoming after cooling, (dewater, decontamination), magnetic valve become low temperature and low humidity steam through heating power expansion valve throttling step-down again to be become subcooled liquid by the secondary cooling condensation after filter in condenser, are sucked by compressor after the heat that absorbs water in dry evaporator becomes low-pressure superheated steam.So constantly move in circles, make the heat collector leaving water temperature obtain raising, evaporator water is reduced, and then can provide 50～55 ℃ of hot water or 7～12 ℃ of cold water for using.
3, beneficial effect: the utility model compared with prior art, its remarkable advantage is: set up a heat collector between compressor and water-cooled condenser, make the hot water that comes out from condenser again through the heat collector post bake, thereby made full use of the sensible heat intensification hot water in the compressor air-discharging, make the heat collector leaving water temperature only than condensation temperature low 1.0～1.2 ℃ (the conventional handpiece Water Chilling Units temperature difference is 5 ℃), do not improving under the condensation temperature condition thereby reached, making leaving water temperature improve about about 4 ℃ on the conventional unit level.Thereby reached purpose of energy saving, and improved effectively the life-span of product, reduced user's maintenance cost.
Four, description of drawings
Accompanying drawing is the utility model structural principle schematic diagram.
Wherein: 1-compressor, 2-water-cooled condenser, 3-expansion valve, 4-evaporimeter, 5-heat collector, 6-device for drying and filtering, 7-magnetic valve.
Five, the specific embodiment
Example 1: with 300KW water resource heat pump handpiece Water Chilling Units is example, and it is mainly by Hanbell RB14H semi-hermetic screw compressor 1; Heat exchange area is 8m
2Heat collector 5; Heat exchange area is 52.4m
2Water-cooled condenser 2; 2 joint molecular sieve filtration cores 6; 1099/9 Italian Castel magnetic valve 7; U.S. Sporlan70RT heating power expansion valve 3; Heat exchange area is 22m
2Dry evaporator 4 and add the automatically controlled composition of being with touch-screen.Summer in winter, cold and hot conversion was regulated with Hand-operated butterfly valve, realized the changes in temperature alliance in two seasons of winter in summer.Under the heating operating mode of 52 ℃ of supply water temperatures, heat is 301.3kw during oepration at full load, and power consumption is 80.6kw.And when heat collector stopped to supply water, when also promptly not being with heat collector, under the heating operating mode of 52 ℃ of supply water temperatures, heating capacity was 292.6kw during oepration at full load, and power consumption is 86.34kw, so the efficient of band during heat collector improves 10.3% than the efficient with heat collector.
Example 2: with 900kw water resource heat pump handpiece Water Chilling Units is example, and it is mainly by Hanbell RB15H and RB16H semi-hermetic screw compressor 1; Heat exchange area is 13m
2And 22m
2Heat collector 5; Heat exchange area is 138m
2Water-cooled condenser 2; 22 joint molecular sieve filtration cores 6; U.S. Sporlan100RT heating power expansion valve 3; Heat exchange area is 67m
2 Dry evaporator 4 and add the automatically controlled composition of being with touch-screen.Summer in winter, cold and hot conversion was regulated with Hand-operated butterfly valve, realized the changes in temperature alliance in two seasons of winter in summer.Under the heating operating mode of 52 ℃ of supply water temperatures, heating capacity is 905.2kw during oepration at full load, and power consumption is 241.7kw.And when heat collector stopped to supply water, when also promptly not being with heat collector, under the heating operating mode of 52 ℃ of supply water temperatures, heating capacity was 879.1kw during oepration at full load, and power consumption is 259.1kw, so band can save energy 10.37% during heat collector.
Claims (2)
1, a kind of water resource heat pump handpiece Water Chilling Units, comprise compressor (1), condenser (2), expansion valve (3) and evaporimeter (4), it is characterized in that it also comprises heat collector (5), its connected mode is: the high temperature and high pressure gas that compressor (1) is discharged enters heat collector (5), warm high-pressure saturated steam enters condenser (2) and is condensed into subcooled liquid in heat collector (5) is cooled, enters to become superheated steam behind the heat that evaporimeter (4) absorbs refrigerating medium and be inhaled in the compressor (1) after expansion valve (3) throttling step-down again.
2, water resource heat pump handpiece Water Chilling Units according to claim 1 is characterized in that being connected with device for drying and filtering (6) and magnetic valve (7) between condenser (2) and evaporimeter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273072 CN2515605Y (en) | 2001-12-28 | 2001-12-28 | Water source heat pump cold water machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273072 CN2515605Y (en) | 2001-12-28 | 2001-12-28 | Water source heat pump cold water machine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515605Y true CN2515605Y (en) | 2002-10-09 |
Family
ID=33678107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01273072 Expired - Fee Related CN2515605Y (en) | 2001-12-28 | 2001-12-28 | Water source heat pump cold water machine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515605Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432576C (en) * | 2003-09-30 | 2008-11-12 | 三洋电机株式会社 | Refrigerant circuit and heat pump type hot water supply apparatus |
| CN101165435B (en) * | 2006-10-17 | 2011-01-12 | 珠海慧生能源技术发展有限公司 | Double effect compression type cold-hot water energy-saving machine set |
| CN102226604A (en) * | 2011-06-01 | 2011-10-26 | 西安交通大学 | High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat |
| WO2021129226A1 (en) * | 2019-12-24 | 2021-07-01 | 青岛海尔空调电子有限公司 | Water chilling unit |
-
2001
- 2001-12-28 CN CN 01273072 patent/CN2515605Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432576C (en) * | 2003-09-30 | 2008-11-12 | 三洋电机株式会社 | Refrigerant circuit and heat pump type hot water supply apparatus |
| CN101165435B (en) * | 2006-10-17 | 2011-01-12 | 珠海慧生能源技术发展有限公司 | Double effect compression type cold-hot water energy-saving machine set |
| CN102226604A (en) * | 2011-06-01 | 2011-10-26 | 西安交通大学 | High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat |
| WO2021129226A1 (en) * | 2019-12-24 | 2021-07-01 | 青岛海尔空调电子有限公司 | Water chilling unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |