CN103335452A - Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant - Google Patents
Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant Download PDFInfo
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- CN103335452A CN103335452A CN201310286208XA CN201310286208A CN103335452A CN 103335452 A CN103335452 A CN 103335452A CN 201310286208X A CN201310286208X A CN 201310286208XA CN 201310286208 A CN201310286208 A CN 201310286208A CN 103335452 A CN103335452 A CN 103335452A
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Abstract
The invention discloses a refrigeration and heat recovery double-working-condition system with ammonia as a refrigerant. An ammonia low-pressure screw compressor (1) is respectively connected with an evaporation cooler (2) and an intercooler (3). The intercooler (3) is connected with an ammonia high-pressure screw compressor (4). The ammonia high-pressure screw compressor (4) is connected with a heat recoverer (5). The heat recoverer (5) is connected with a circulation water tank (11). The heat recoverer (5) is further connected with the intercooler (3). The intercooler (3) is connected with a gas-liquid separator (6). The gas-liquid separator (6) is connected with an evaporator (7). The gas-liquid separator (6) is connected with the ammonia low-pressure screw compressor (1). According to the refrigeration and heat recovery double-working-condition system with the ammonia as the refrigerant, cold water can be supplied through refrigeration, low-pressure stage condensation heat can be absorbed to be used for supplying high-temperature water, and zero release of waste heat is achieved. In addition, the problem of hot-water water-outlet temperature fluctuation caused by user load fluctuation or seasonal changes is solved, and the stability of the hot-water water-outlet temperature is ensured.
Description
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Technical field
The present invention relates to a kind of refrigeration, recuperation of heat duplex condition system, relate in particular to a kind of ammonia and make the refrigeration of cold-producing medium, recuperation of heat duplex condition system.
Background technology
Along with the raising of people's environmental protection consciousness, (ODP=0 GWP=0) uses more and more widely ammonia as a kind of environmental protection refrigerant.At present, the system that both at home and abroad generally adopt single refrigeration, singly heats namely adopts single refrigeration system refrigeration, and condensation heat then wastes, and has polluted environment, has wasted the energy, perhaps only adopts boiler, electrical heating equal energy source utilization rate is low, cost is high heating system.The refrigerating heat pump duplex condition technology of development in recent years, hot water effluent's temperature is mostly at 45～75 ℃, and the cold water leaving water temperature is mostly at 0～10 ℃, and its comprehensive COP is lower, is difficult to meet consumers' demand.
Summary of the invention
The present invention aims to provide a kind of ammonia and makes the refrigeration of cold-producing medium, recuperation of heat duplex condition system, technical problem to be solved is, the first, not only can provide cold water by refrigeration, and can absorb the low-pressure stage condensation heat for high-temperature water is provided, realize the used heat zero-emission; The second, solve because hot water effluent's temperature fluctuation that customer charge fluctuation or seasonal variations cause guarantees hot water effluent's temperature stabilization.
Purpose of the present invention can reach by following measure:
A kind of ammonia is made the refrigeration of cold-producing medium, recuperation of heat duplex condition system, comprise ammonia low pressure helical-lobe compressor, ammonia high pressure helical-lobe compressor, evaporate cold, intercooler, heat regenerator, gas-liquid separator, evaporimeter, interior water circulating pump, cyclic water tank and first throttle device and second throttling arrangement, it is characterized in that: ammonia connects the cold inlet end of evaporation and the inlet end of intercooler by pipeline respectively with the exhaust end of low pressure helical-lobe compressor, evaporate cold outlet end connects intercooler by pipeline liquid feeding end, the outlet side of intercooler connects ammonia with the suction end of ammonia with the high pressure helical-lobe compressor by pipeline, and ammonia connects the inlet end of heat regenerator with the exhaust end of high pressure helical-lobe compressor by pipeline, and 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, and 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 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 that ammonia is used the low pressure helical-lobe compressor.
The present invention has following good effect:
(1), the present invention has overcome the shortcoming that traditional single refrigeration system is only freezed, single heating only heats, the purpose of using a cover system can realize simultaneously cold water is provided and hot water is provided.
(2), high pressure compressor design pressure 50bar of the present invention, hot water effluent's temperature is up to 100 ℃, the cold water leaving water temperature is minimum to reach-40 ℃.
(3), low-pressure stage condensation heat of the present invention is absorbed by hiigh pressure stage fully and provide high-temperature water as power, has realized the used heat zero-emission, energy-saving and emission-reduction are beneficial to environmental protection.
(4), refrigeration system of the present invention, 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 invention solves the user because hot water effluent's temperature fluctuation that load fluctuation or seasonal variations cause guarantees hot water effluent's temperature stabilization.
(6), the present invention can carry out 0～100% step-less adjustment to heat recovery system according to user's actual conditions.
(7), the ammonia refrigerant that adopts is that (ODP=0 GWP=1), does not have any destruction to environment to natural environmental-protective working medium, and is easy to obtain, and is cheap.
(8), the ammonia refrigerant gasification latent heat is big, the refrigerating effect per unit swept volume height, refrigerant charge is little under the identical cold, system, conduit volume are little, system cost is low, takes up an area of little.
Description of drawings
Fig. 1 is structure of the present invention and operation principle schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is elaborated.
The present invention includes ammonia with low pressure helical-lobe compressor 1, ammonia is with high pressure helical-lobe compressor 4, evaporate 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 second throttling arrangement 9.
Ammonia connects the inlet end of evaporation cold 2 and the inlet end of intercooler 3 by pipeline respectively with the exhaust end of low pressure helical-lobe compressor 1, evaporate cold 2 outlet end connects intercooler 3 by pipeline liquid feeding end, the outlet side of intercooler 3 connects ammonia is used high pressure helical-lobe compressor 4 with ammonia suction end by pipeline, ammonia connects the inlet end of heat regenerator 5 by pipeline with the exhaust end of high pressure helical-lobe compressor 4, 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, and 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 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 that ammonia is used low pressure helical-lobe compressor 1.
The gaseous ammonia cold-producing medium of low-temp low-pressure enters intercooler 3 by low pressure helical-lobe compressor 1 a compression back part, another part enters intercooler 3 after entering cold 2 condensations of evaporation, gaseous refrigerant is sucked and second-compressed with high pressure helical-lobe compressor 4 by ammonia after cooling off, high temperature after the compression, high pressure, overheated gaseous refrigerant enters heat regenerator 5 heat release condensations and enters intercooler 3 by throttling arrangement 8 throttlings, liquid refrigerant enters gas-liquid separator 6 in the intercooler 3 after throttling arrangement 9 throttlings, liquid refrigerant is given evaporimeter 7 feed flows in the gas-liquid separator 6, enters gas-liquid separator 6 after the heat of vaporization of absorption chilled water and is also sucked by low pressure compressor 1 again.Ammonia is with high pressure helical-lobe compressor 4 design pressure 50bar, and user's cold water enters in the evaporimeter 7 after the release heat, and the cold water of minimum reaching-40 ℃ can be provided.User's hot water enters cyclic water tank 11 to be mixed with hot water in it by entering after 10 pressurizations of interior water circulating pump and can provide maximum temperature to reach 100 ℃ hot water after entering cyclic water tank 11 mixing after heat regenerator 5 heats up.
Claims (1)
1. an ammonia is made the refrigeration of cold-producing medium, recuperation of heat duplex condition system, comprise ammonia low pressure helical-lobe compressor (1), ammonia high pressure helical-lobe compressor (4), evaporate 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 second throttling arrangement (9), it is characterized in that: ammonia connects the inlet end of evaporation 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 that evaporates cold (2) connects the liquid feeding end of intercooler (3) by pipeline, the outlet side of intercooler (3) connects ammonia is used high pressure helical-lobe compressor (4) with ammonia suction end by pipeline, ammonia connects the inlet end of heat regenerator (5) by pipeline with the exhaust end of high pressure helical-lobe compressor (4), 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), and 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 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 that ammonia is used low pressure helical-lobe compressor (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310286208XA CN103335452A (en) | 2013-07-09 | 2013-07-09 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
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| CN201310286208XA CN103335452A (en) | 2013-07-09 | 2013-07-09 | Refrigeration and heat recovery double-working-condition system with ammonia as refrigerant |
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| CN103335452A true CN103335452A (en) | 2013-10-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910483A (en) * | 2016-05-09 | 2016-08-31 | 四川大学 | Method for recycling pasty material waste heat and raising temperature through natural circulation boiling heat transfer |
| CN110513909A (en) * | 2019-09-17 | 2019-11-29 | 福建正大食品有限公司 | A kind of steam-refrigerated residual neat recovering system and method |
| CN111306840A (en) * | 2019-02-15 | 2020-06-19 | 李华玉 | Multidirectional thermodynamic cycle |
| CN114353364A (en) * | 2022-01-12 | 2022-04-15 | 西安交通大学 | High-temperature steam generation system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210748A (en) * | 2006-12-28 | 2008-07-02 | 苏宇贵 | Air-conditioner hot-water composite machine |
| CN201373568Y (en) * | 2009-03-20 | 2009-12-30 | 上海瀚艺冷冻机械有限公司 | Ultra-low temperature water heater capable of being used under 25 DEG C below zero |
| JP2011127878A (en) * | 2009-12-21 | 2011-06-30 | Mitsubishi Electric Corp | Hot water heat source machine |
| CN203396153U (en) * | 2013-07-09 | 2014-01-15 | 烟台冰轮股份有限公司 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
-
2013
- 2013-07-09 CN CN201310286208XA patent/CN103335452A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210748A (en) * | 2006-12-28 | 2008-07-02 | 苏宇贵 | Air-conditioner hot-water composite machine |
| CN201373568Y (en) * | 2009-03-20 | 2009-12-30 | 上海瀚艺冷冻机械有限公司 | Ultra-low temperature water heater capable of being used under 25 DEG C below zero |
| JP2011127878A (en) * | 2009-12-21 | 2011-06-30 | Mitsubishi Electric Corp | Hot water heat source machine |
| CN203396153U (en) * | 2013-07-09 | 2014-01-15 | 烟台冰轮股份有限公司 | Refrigeration and heat recover dual-working-condition system using ammonia as refrigerant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910483A (en) * | 2016-05-09 | 2016-08-31 | 四川大学 | Method for recycling pasty material waste heat and raising temperature through natural circulation boiling heat transfer |
| CN111306840A (en) * | 2019-02-15 | 2020-06-19 | 李华玉 | Multidirectional thermodynamic cycle |
| CN110513909A (en) * | 2019-09-17 | 2019-11-29 | 福建正大食品有限公司 | A kind of steam-refrigerated residual neat recovering system and method |
| CN114353364A (en) * | 2022-01-12 | 2022-04-15 | 西安交通大学 | High-temperature steam generation system and method |
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Application publication date: 20131002 |