CN203396153U - Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant - Google Patents
Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant Download PDFInfo
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- CN203396153U CN203396153U CN201320405897.7U CN201320405897U CN203396153U CN 203396153 U CN203396153 U CN 203396153U CN 201320405897 U CN201320405897 U CN 201320405897U CN 203396153 U CN203396153 U CN 203396153U
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Abstract
The utility model discloses a refrigeration and heat recover dual-working-condition system using ammonia as refrigerant. An ammonia low-pressure screw compressor (1) is respectively connected with an evaporative cooler (2) and an intermediate cooler (3), the intermediate cooler (3) is connected with an ammonia high-pressure screw compressor (4), the ammonia high-pressure screw compressor (4) is connected with a heat recovery device (5), the heat recovery device (5) is connected with a circulating water tank (11) and the heat recovery device (5) is also connected with the intermediate cooler (3); the intermediate cooler (3) is connected with a gas-liquid separator (6), the gas-liquid separator (6) is connected with an evaporator (7) and the gas-liquid separator (6) is also connected with the ammonia low-pressure screw compressor (1). The refrigeration and heat recover dual-working-condition system using ammonia as refrigerant has the advantages that not only can cold water be provided through refrigeration, but also low-pressure condensation heat can be absorbed for providing high-temperature water and the zero emission of waste heat is realized; the problem that the outlet temperature of hot water is fluctuated due to user load fluctuation or seasonal change is solved and the outlet temperature of the hot water is enabled to be stable.
Description
technical field
The utility model relates to a kind of refrigeration, recuperation of heat Double-working-condition system, relates in particular to a kind of ammonia and makes the refrigeration of cold-producing medium, recuperation of heat Double-working-condition system.
background technology
Along with the raising of people's environmental protection consciousness, ammonia is more and more extensive as a kind of environmental protection refrigerant (ODP=0, GWP=0) application.At present, the system that both at home and abroad generally adopt single refrigeration, singly heats, adopts single refrigeration system refrigeration, and condensation heat wastes, and has polluted environment, has wasted the energy, or only adopt boiler, electrical heating equal energy source utilization rate is low, cost is high heating system.The refrigerating heat pump Double-working-condition technology of development in recent years, hot water effluent's temperature is mostly at 45～75 ℃, and cold water leaving water temperature is mostly at 0～10 ℃, and its comprehensive COP is lower, is difficult to meet consumers' demand.
utility model content
The utility model aims to provide a kind of ammonia and makes the refrigeration of cold-producing medium, recuperation of heat Double-working-condition system, technical problem to be solved is, the first, not only can provide cold water by refrigeration, and can absorb low-pressure stage condensation heat and be used for providing high-temperature water, realize used heat zero-emission; The second, solve due to hot water effluent's temperature fluctuation that customer charge fluctuates or seasonal variations causes, guarantee hot water effluent's temperature stabilization.
The purpose of this utility model can reach by following measure:
A kind of ammonia is made the refrigeration of cold-producing medium, recuperation of heat Double-working-condition system, comprise ammonia low pressure helical-lobe compressor, ammonia high-pressure screw compressor, evaporating cold, intercooler, heat regenerator, gas-liquid separator, evaporimeter, interior water circulating pump, cyclic water tank and first throttle device and the second throttling arrangement, it is characterized in that: ammonia connects the inlet end of evaporating cold and the inlet end of intercooler by pipeline respectively with the exhaust end of low pressure helical-lobe compressor, the outlet end of evaporating cold connects the liquid feeding end of intercooler by pipeline, the outlet side of intercooler connects ammonia by pipeline and with ammonia, uses the suction end of high-pressure screw compressor, ammonia connects the inlet end of heat regenerator with the exhaust end of high-pressure screw compressor by pipeline, the water side of heat regenerator connects the water inlet end of cyclic water tank by pipeline, the water side of cyclic water tank is connected to the water inlet end of heat regenerator by pipeline and interior water circulating pump, the outlet end of heat regenerator is connected the liquid feeding end of intercooler by pipeline and first throttle device, the outlet end of intercooler is connected the liquid feeding end of gas-liquid separator by pipeline and the second throttling arrangement, the outlet end of gas-liquid separator connects the liquid feeding end of evaporimeter, the outlet side of evaporimeter connects the inlet end of gas-liquid separator, and the outlet side of gas-liquid separator connects the suction end of low pressure helical-lobe compressor for ammonia.
The utlity model has following good effect:
(1), the utility model overcome the shortcoming that traditional single refrigeration system is only freezed, single heating only heats, and uses a cover system can realize the object that cold water is provided and hot water is provided simultaneously.
(2), the utility model high pressure compressor design pressure 50bar, hot water effluent's temperature is up to 100 ℃, cold water leaving water temperature is minimum reaches-40 ℃.
(3), the utility model low-pressure stage condensation heat absorbs by hiigh pressure stage completely and provides high-temperature water as power, realized used heat zero-emission, energy-saving and emission-reduction, are beneficial to environmental protection.
(4), the utility model refrigeration system, working in coordination of heat recovery system optimized performance of refrigerant systems, more single refrigeration system, COP has improved more than 15%, and has guaranteed higher comprehensive COP.
(5), the utility model solved user due to the hot water effluent temperature fluctuation that load fluctuation or seasonal variations cause, and guarantees hot water effluent's temperature stabilization.
(6), the utility model can, according to user's actual conditions, carry out 0～100% step-less adjustment to heat recovery system.
(7), the ammonia refrigerant that adopts is natural environmental-protective working medium (ODP=0, GWP=1), and environment, without any destruction, and is easy to obtain, cheap.
(8), ammonia refrigerant gasification latent heat is large, refrigerating effect per unit swept volume is high, under identical cold, refrigerant charge is little, system, conduit volume are little, system cost is low, takes up an area little.
accompanying drawing explanation
Fig. 1 is structure of the present utility model and operation principle schematic diagram.
the specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model comprises low pressure helical-lobe compressor 1 for ammonia, high-pressure screw compressor 4 for ammonia, evaporating cold 2, intercooler 3, heat regenerator 5, gas-liquid separator 6, evaporimeter 7, interior water circulating pump 10, cyclic water tank 11 and first throttle device 8 and the second throttling arrangement 9.
Ammonia connects the inlet end of evaporating cold 2 and the inlet end of intercooler 3 by pipeline respectively with the exhaust end of low pressure helical-lobe compressor 1, the outlet end of evaporating cold 2 connects the liquid feeding end of intercooler 3 by pipeline, the outlet side of intercooler 3 connects ammonia by pipeline and with ammonia, uses the suction end of high-pressure screw compressor 4, ammonia connects the inlet end of heat regenerator 5 with the exhaust end of high-pressure screw compressor 4 by pipeline, the water side of heat regenerator 5 connects the water inlet end of cyclic water tank 11 by pipeline, cyclic water tank 11 water side is connected to the water inlet end of heat regenerator 5 by pipeline and interior water circulating pump 10, the outlet end of heat regenerator 5 is connected the liquid feeding end of intercooler 3 by pipeline and first throttle device 8, the outlet end of intercooler 3 is connected the liquid feeding end of gas-liquid separator 6 by pipeline and the second throttling arrangement 9, the outlet end of gas-liquid separator 6 connects the liquid feeding end of evaporimeter 7, the outlet side of evaporimeter 7 connects the inlet end of gas-liquid separator 6, and the outlet side of gas-liquid separator 6 connects the suction end of low pressure helical-lobe compressor 1 for ammonia.
The gaseous ammonia cold-producing medium of low-temp low-pressure enters intercooler 3 by low pressure helical-lobe compressor 1 compression rear portion, another part enters intercooler 3 after entering evaporating cold 2 condensations, gaseous refrigerant is sucked and second-compressed with high-pressure screw compressor 4 by ammonia after cooling, high temperature after compression, high pressure, overheated gaseous refrigerant enters heat regenerator 5 heat release condensations and enters intercooler 3 by throttling arrangement 8 throttlings, the interior liquid refrigerant of intercooler 3 enters gas-liquid separator 6 after throttling arrangement 9 throttlings, the interior liquid refrigerant of gas-liquid separator 6 is to evaporimeter 7 feed flows, after the heat of vaporization of absorption chilled water, enter gas-liquid separator 6 and again by low pressure compressor 1, sucked.High-pressure screw compressor 4 design pressure 50bar for ammonia, user's cold water enters after the interior release heat of evaporimeter 7, and the cold water of minimum reaching-40 ℃ can be provided.User's hot water enters cyclic water tank 11 to be mixed by entering after heat regenerator 5 heats up and enter after cyclic water tank 11 mixes and can provide maximum temperature to reach the hot water of 100 ℃ after interior water circulating pump 10 pressurizations with the hot water in it.
Claims (1)
1. an ammonia is made the refrigeration of cold-producing medium, recuperation of heat Double-working-condition system, comprise low pressure helical-lobe compressor (1) for ammonia, high-pressure screw compressor for ammonia (4), evaporating cold (2), intercooler (3), heat regenerator (5), gas-liquid separator (6), evaporimeter (7), interior water circulating pump (10), cyclic water tank (11) and first throttle device (8) and the second throttling arrangement (9), it is characterized in that: ammonia connects the inlet end of evaporating cold (2) and the inlet end of intercooler (3) by pipeline respectively with the exhaust end of low pressure helical-lobe compressor (1), the outlet end of evaporating cold (2) connects the liquid feeding end of intercooler (3) by pipeline, the outlet side of intercooler (3) connects the suction end of high-pressure screw compressor for ammonia for ammonia (4) by pipeline, the exhaust end of high-pressure screw compressor for ammonia (4) connects the inlet end of heat regenerator (5) by pipeline, the water side of heat regenerator (5) connects the water inlet end of cyclic water tank (11) by pipeline, the water side of cyclic water tank (11) is connected to the water inlet end of heat regenerator (5) by pipeline and interior water circulating pump (10), the outlet end of heat regenerator (5) is connected the liquid feeding end of intercooler (3) by pipeline and first throttle device (8), the outlet end of intercooler (3) is connected the liquid feeding end of gas-liquid separator (6) by pipeline and the second throttling arrangement (9), the outlet end of gas-liquid separator (6) connects the liquid feeding end of evaporimeter (7), the outlet side of evaporimeter (7) connects the inlet end of gas-liquid separator (6), and the outlet side of gas-liquid separator (6) connects the suction end of low pressure helical-lobe compressor (1) for ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405897.7U CN203396153U (en) | 2013-07-09 | 2013-07-09 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405897.7U CN203396153U (en) | 2013-07-09 | 2013-07-09 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
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| Publication Number | Publication Date |
|---|---|
| CN203396153U true CN203396153U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320405897.7U Expired - Lifetime CN203396153U (en) | 2013-07-09 | 2013-07-09 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
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| Country | Link |
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| CN (1) | CN203396153U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335452A (en) * | 2013-07-09 | 2013-10-02 | 烟台冰轮股份有限公司 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
| CN104296406A (en) * | 2014-09-29 | 2015-01-21 | 大连国富水产食品有限公司 | Frozen seafood heat energy recycling device |
| CN111306840A (en) * | 2019-02-15 | 2020-06-19 | 李华玉 | Multidirectional thermodynamic cycle |
-
2013
- 2013-07-09 CN CN201320405897.7U patent/CN203396153U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335452A (en) * | 2013-07-09 | 2013-10-02 | 烟台冰轮股份有限公司 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
| CN104296406A (en) * | 2014-09-29 | 2015-01-21 | 大连国富水产食品有限公司 | Frozen seafood heat energy recycling device |
| CN111306840A (en) * | 2019-02-15 | 2020-06-19 | 李华玉 | Multidirectional thermodynamic cycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |