CN101576283B - Water heater with heating-supply from transcritical carbon dioxide heat-pump - Google Patents
Water heater with heating-supply from transcritical carbon dioxide heat-pump Download PDFInfo
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- CN101576283B CN101576283B CN 200910052871 CN200910052871A CN101576283B CN 101576283 B CN101576283 B CN 101576283B CN 200910052871 CN200910052871 CN 200910052871 CN 200910052871 A CN200910052871 A CN 200910052871A CN 101576283 B CN101576283 B CN 101576283B
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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]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
A water heater with heating-supply from a transcritical carbon dioxide heat-pump comprises a transcritical carbon dioxide heat-pump system, a hot-water supply system and a heating circulation system. The transcrtical carbon dioxide heat-pump system comprises a compressor, a first gas cooler, a second gas cooler, a heat regenerator, an expansion valve, an evaporator and the other heat regenerator which are sequentially positioned on a first circulation pipeline; the hot-water supply system comprises a water tank, a first pump and a hot water outlet valve, wherein the water tank comprises a high-temperature zone A, an intermediate-temperature zone B and a low-temperature zone C; and the heating circulation system comprises a second gas cooler, a second pump and end equipments which are positioned on a second circulation pipeline. The invention reduces the temperature of dioxide carbon at the inlet of the expansion valve and respectively raises the superheat degree of dioxide carbon at the inlet of the compressor and EER of heat-pump circulation so as to ensure the lower temperature of water entering the gas cooler from the water tank; the reduction of the temperature of the first gascooler enhances the efficiency of the heat-pump system; and both high-temperature water and intermediate-temperature water can be provided according to requirement of users.
Description
Technical field
The invention belongs to the Teat pump boiler field, particularly a kind of hot water apparatus that utilizes CO 2 trans-critical heat pump to come heat supply water and heating.
Background technology
The Along with people's growth in the living standard, water heater is popularized as a kind of household electrical appliance, and people are increasing to the demand of hot water, and the energy consumption of water heater is increasingly high.Traditional in the market water heater has three major types: fuel heat hydrophone, electric heater and solar water heater.The fuel heat hydrophone is main with combustion gas mainly, and this type water heater will be discharged a large amount of waste gas in use, except carbon dioxide, also has unburnt product carbon monoxide in the waste gas, and intoxication accident takes place easily.Electric heater is bigger to waste of energy, though earth leakage protective is housed on the electric heater, the electric shock accidents that takes place when using electric heater also happens occasionally.Solar water heater belongs to environmental protection, energy-conserving product, but it is bigger to receive the influence of weather, and the zone of use and time receive very big restriction.In addition; Teat pump boiler has also been arranged on the market; But the working medium of these Teat pump boilers is generally traditional working medium such as R22, R410A; Not only can damage the ozone layer but also can bring greenhouse, and these working medium will produce hot water more than 60 ℃ and can make that Compressor Discharge Pressure is too high, heat pump Energy Efficiency Ratio (EER) is low excessively, so water temperature is restricted.
People increase the demand that heats winter gradually, and particularly in the area of not central heating of the middle and lower reach of Yangtze River, air-conditioning heating, floor heating have become a focus.
Compare with these water heaters; The CO 2 trans-critical heat pump water heater mainly contains following advantage: (1) is energy-conservation, utilizes the heat pump cycle principle, its essence is the transfer rather than the generation of heat; Therefore heat the hot water of equivalent, its energy consumption is merely 1/4 of electrical heating water heater and gas heater; (2) environmental protection; The CO 2 trans-critical heat pump water heater can't produce waste gas such as carbon dioxide, and has utilized carbon dioxide exactly, even carbon dioxide is revealed; As a kind of natural medium, also be very little to the influence of environment with respect to other heat pump fluids; (3) it is stronger to produce the ability of hot water, strides critical cycle owing to adopted, and it can produce 90 ℃ of high-temperature-hot-waters, and the conventional heat pump water heater is generally produced hot water and is no more than 60 ℃; (4) the critical-cross carbon dioxide water heater is the thermal source of heating system in winter, utilizes its superpower hot water to produce ability, adopts the mode of hot water floor heating, can satisfy the needs of people to the heating in winter.
Summary of the invention
The objective of the invention is to, a kind of carbon dioxide heat-pump water heater with heating-supply is provided.
The present invention adopts following technical scheme:
A kind of water heater with heating-supply from transcritical carbon dioxide heat-pump comprises: CO 2 trans-critical heat pump system, hot water supply system and the heating circulatory system;
Wherein, said CO 2 trans-critical heat pump system comprises compressor, first air cooler, second air cooler, regenerator, expansion valve, evaporimeter, the said regenerator that is positioned at successively on first circulation line;
Wherein, Said hot water supply system comprises water tank, first water pump, hot water effluent's valve; Said water tank is provided with water inlet pipe; Said water tank comprises high-temperature region A, middle warm area B and low-temperature space C, and said water tank low-temperature space C, first water pump, first air cooler, water tank high-temperature region A are connected through pipeline successively; Said hot water effluent's valve is connected with water inlet pipe 9 with the high-temperature region A of said water tank, middle warm area B respectively through three pipelines respectively;
Wherein, the said heating circulatory system comprises second air cooler, second water pump and the end-equipment that is positioned on second circulation line.
Further, said end-equipment is the floor heating pipeline.
Further, also be provided with drainpipe on the said water tank.
Further, the heat exchanger form of said first air cooler and second air cooler is the valve jacket tubular type.
Further, said evaporimeter is a plate-fin heat exchanger.
Water heater with heating-supply from transcritical carbon dioxide heat-pump provided by the invention; Its regenerator is that the carbon dioxide of the inlet of the little type heat exchanger outlet and the compressor that make air cooler carries out heat exchange; Further reduce the temperature and the degree of superheat that improves the suction port of compressor carbon dioxide of expansion valve inlet carbon dioxide; Improved the EER of heat pump cycle; And its water tank divides three temperature layer districts to have 2 advantages: guarantee that one, the glassware for drinking water that gets into air cooler from water tank has lower temperature, thereby reduce the efficient (COP) of the temperature raising heat pump of first air cooler.Two, high-temperature water or middle warm water can be provided according to user's demand.
Description of drawings
Fig. 1 water heater with heating-supply from transcritical carbon dioxide heat-pump system embodiment of the present invention sketch map.
Label declaration:
1 compressor, 21 first air coolers, 22 second air coolers, 3 regenerators, 4 expansion valves
5 evaporimeters, 6 water tanks, 7 first water pumps, 8 drainpipes, 9 water inlet pipes
10 hot water effluent's valves, 11 second water pumps, 12 floor heating pipelines
The specific embodiment
1 couple of the present invention further explains below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of water heater with heating-supply from transcritical carbon dioxide heat-pump comprises CO 2 trans-critical heat pump system, hot water supply system and the heating circulatory system three parts.
Wherein, Said CO 2 trans-critical heat pump system absorbs heat and offers hot water supply system and heating system from the external world, it comprises the compressor that is positioned at successively on first circulation line 1, first air cooler 21, second air cooler 22, regenerator 3, expansion valve 4, evaporimeter 5, said regenerator 3;
Wherein, the heat exchanger form of first air cooler 21, second air cooler 22 adopts the valve jacket tubular type, 3 employing plate-fin heat exchangers of evaporimeter, and the heat exchange through fan enhanced water evaporation device 5;
The working medium that said CO 2 trans-critical heat pump system adopts is carbon dioxide; Because the carbon dioxide critical point is lower; Be easy to reach supercriticality, thereby system's exothermic temperature is higher, and has a sizable temperature glide (about 80～100 ℃); Be fit to very much heating, 90 ℃ hot water can be provided water.Regenerator 3 among the present invention is that the carbon dioxide of the inlet of the little type heat exchanger outlet and the compressor that make air cooler carries out heat exchange; Further reduce the temperature and the degree of superheat that improves the suction port of compressor carbon dioxide of expansion valve inlet carbon dioxide, this has very big benefit for the EER that improves heat pump cycle.
Fig. 1 frame of broken lines is depicted as the outdoor machine part of water heater, other be the indoor set part.Off-premises station mainly is a heat pump; Carbon dioxide is at 1 li gas that is compressed into high pressure-temperature of compressor, through the gas of air cooler and the regenerator 3 back evolutions of heat becoming cryogenic high pressure, after expanding through expansion valve 4 again; Carbon dioxide becomes the liquid of low-pressure low-temperature; At the heat of evaporimeter 5 evaporation absorption chamber outer air, and, get back to compressor 1 at last and accomplish circulation in 3 li further heat absorptions of regenerator.
Wherein, Said hot water supply system comprises water tank 6, first water pump 7, hot water effluent's valve 10; Said water tank 6 is provided with water inlet pipe 9; Said water tank 6 comprises high-temperature region A (90 ℃-70 ℃), middle warm area B (70 ℃-35 ℃) and low-temperature space C (below 35 ℃), and said water tank 6 low-temperature space C, first water pump 7, first air cooler 21, water tank 6 high-temperature region A are connected through pipeline successively; Said hot water effluent's valve 10 is connected with water inlet pipe 9 with the high-temperature region A of said water tank 6, middle warm area B respectively through three pipelines respectively.
6 fens three temperature layer districts of water tank have 2 benefits: one, guaranteeing has lower temperature from the glassware for drinking water that water tank 6 gets into air cooler, thereby reduces the efficient (COP) of the temperature raising heat pump of first air cooler 21.Two, high-temperature water or middle warm water can be provided according to user's demand, this can be realized by hot water effluent's valve 10.
In hot water supply system, the water of water tank 6 bottom low-temperature space C flow to first air cooler 21 and carbon dioxide generation heat exchange through first water pump 7, gets back to high-temperature region, the top A of water tank 6 after being heated.In the water side, the present invention has designed three pipes and 10, three pipes of a valve provide high-temperature water, middle warm water and water at low temperature respectively, and the flow of regulating each water pipe through hot water effluent's valve 10 is to reach user's requirement.As when the customer requirements warm water, can close the valve of high temperature and low temperature, directly warm area B water intaking from water tank.If going out water temperature crosses the flow that then can strengthen high-temperature region A water outlet when low and improves water temperature.
Wherein, the said heating circulatory system comprises second air cooler 22, second water pump 11 and the end-equipment 12 that is positioned on second circulation line.Wherein, said end-equipment 12 is other heat dissipation equipments such as floor heating pipeline or employing radiator.
In the heating circulatory system, the water in the pipeline circulates through second water pump 11, absorbs the heat of carbon dioxide in the air cooler 2 22, in the heat abstractor of system's end, heat is passed to room air, thereby heats to indoor.
Wherein, said water tank 6 is provided with water inlet pipe 9, and water inlet pipe 9 links to each other in the network of rivers with the outside from the beginning, when the water yield reduces to setting value in the water tank 6, carries out supply by water inlet pipe.Also be provided with drainpipe 8 on the said water tank 6, draining is used when system runs into fault and overhauls.
Claims (5)
1. a water heater with heating-supply from transcritical carbon dioxide heat-pump is characterized in that comprising: CO 2 trans-critical heat pump system, hot water supply system and the heating circulatory system;
Wherein, said CO 2 trans-critical heat pump system comprises compressor (1), first air cooler (21), second air cooler (22), regenerator (3), expansion valve (4), evaporimeter (5), the said regenerator (3) that is positioned at successively on first circulation line;
Wherein, Said hot water supply system comprises water tank (6), first water pump (7), hot water effluent's valve (10); Said water tank (6) is provided with water inlet pipe (9); Said water tank (6) comprises high-temperature region A, middle warm area B and low-temperature space C, and said water tank (6) low-temperature space C, first water pump (7), first air cooler (21), water tank (6) high-temperature region A are connected through pipeline successively; Said hot water effluent's valve (10) is connected with the high-temperature region A of said water tank (6), middle warm area B and water inlet pipe (9) respectively through three pipelines respectively;
Wherein, the said heating circulatory system comprises second air cooler (22), second water pump (11) and the end-equipment (12) that is positioned on second circulation line.
2. water heater with heating-supply from transcritical carbon dioxide heat-pump according to claim 1 is characterized in that: said end-equipment (12) is the floor heating pipeline.
3. water heater with heating-supply from transcritical carbon dioxide heat-pump according to claim 2 is characterized in that:
Also be provided with drainpipe (8) on the said water tank (6).
4. water heater with heating-supply from transcritical carbon dioxide heat-pump according to claim 3 is characterized in that:
The heat exchanger form of said first air cooler (21) and second air cooler (22) is the valve jacket tubular type.
5. water heater with heating-supply from transcritical carbon dioxide heat-pump according to claim 4 is characterized in that:
Said evaporimeter (3) is a plate-fin heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910052871 CN101576283B (en) | 2009-06-11 | 2009-06-11 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910052871 CN101576283B (en) | 2009-06-11 | 2009-06-11 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
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| Publication Number | Publication Date |
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| CN101576283A CN101576283A (en) | 2009-11-11 |
| CN101576283B true CN101576283B (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910052871 Expired - Fee Related CN101576283B (en) | 2009-06-11 | 2009-06-11 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893276A (en) * | 2010-04-20 | 2010-11-24 | 上海理工大学 | System for supplying heat to floor radiation heating system by transcritical carbon dioxide heat pump system |
| CN102283284B (en) * | 2011-06-16 | 2013-04-03 | 上海理工大学 | Transcritical carbon dioxide heat pump milk disinfecting and cooling system and method |
| CN103742965A (en) * | 2013-12-20 | 2014-04-23 | 罗林华 | Heat exchange unit |
| GB2527530A (en) * | 2014-06-24 | 2015-12-30 | Thermal Integration Ltd | Fluid-heating apparatus |
| CN104697165B (en) * | 2015-03-26 | 2018-04-27 | 广东美的暖通设备有限公司 | Water heater |
| JP6464873B2 (en) * | 2015-03-26 | 2019-02-06 | 三菱電機株式会社 | Hot water storage type heat pump water heater |
| CN106287901A (en) * | 2015-06-05 | 2017-01-04 | 青岛海尔新能源电器有限公司 | Carbon dioxide heat-pump heater |
| CN105042679B (en) * | 2015-08-27 | 2017-12-22 | 江苏天舒电器有限公司 | A kind of water heating heat pump device for controlling dynamically |
| CN105371515A (en) * | 2015-08-31 | 2016-03-02 | 黑龙江爱科德科技有限公司 | Carbon dioxide ground source type geothermal system |
| CN105258394B (en) * | 2015-10-10 | 2017-11-14 | 上海理工大学 | Carbon dioxide heat pump system |
| CN109931703A (en) * | 2018-04-11 | 2019-06-25 | 浙江工业大学 | A kind of efficient step coupling heat pump water heater |
| CN109798661B (en) * | 2018-04-11 | 2021-06-18 | 浙江工业大学 | Multi-mode heating heat pump water heater |
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2009
- 2009-06-11 CN CN 200910052871 patent/CN101576283B/en not_active Expired - Fee Related
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