CN101033866A - Heat pump combined with water heater system - Google Patents

Heat pump combined with water heater system Download PDF

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Publication number
CN101033866A
CN101033866A CN 200710057133 CN200710057133A CN101033866A CN 101033866 A CN101033866 A CN 101033866A CN 200710057133 CN200710057133 CN 200710057133 CN 200710057133 A CN200710057133 A CN 200710057133A CN 101033866 A CN101033866 A CN 101033866A
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China
Prior art keywords
water
heat exchanger
cooling heat
water cooling
valve
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CN 200710057133
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CN100451493C (en
Inventor
李敏霞
马一太
苏维诚
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Tianjin University
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Tianjin University
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Publication of CN101033866A publication Critical patent/CN101033866A/en
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Publication of CN100451493C publication Critical patent/CN100451493C/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps

Abstract

This invention discloses a heat pump and water united system that can supply heat, cold and heat water for life. It combines the condenser, water-cold heat transformer, air or water source heat transformer, electronic triple valve, electronic expansion valve, single valve, water tight and electronic temperature-sensing valve to the systematic pipe according to winter and summer different situation. It sets three water-cold heat transformers and two air or water source heat transformers with respect to power degree and winter-summer real situation. The condenser connects to the water-cold heat transformer and electronic triple valve. There is pipe between the water-cold heat transformers. The water tight and electronic temperature-sensing valve connect together and the electronic temperature-sensing valve connects separately to the water pipe net and water-cold heat transformer which can adjust the systematical temperature so as to realize the supply of heat, water and heat water for life by the expansion valve. The character of this invention is in that not only satisfy the consuming need but also reasonably use the energy through simple systematic transformation.

Description

Heat pump combined with water heater system
Technical field
The invention belongs to hot accent equipment, say so more specifically with water source or air source heat pump heating, cooling and supply domestic hot-water's integrated system.
Background technology
Teat pump boiler be with water source or air source as the low-temperature heat source system, produce the system of high-temperature water, its primary energy ratio height, the heat supply temperature height is easy to realize characteristics such as capacity regulating and is developed rapidly.But the application of at present relevant heat pump water heater system all is to exist with domestic hot-water's simple function that the air source provides, and does not consider the operating condition that summer is different with winter, the optimal design that heating, cooling and domestic hot-water are rationally mated.The heat pump combined with water heater system of this programme not only can use common working medium such as R22 and R410a, also is fit to natural refrigerant CO 2Heat pump combined with water heater system can guarantee can also provide the domestic hot-water when system's (winter) when outdoor temperature is low can provide heat supply on the one hand, and keeps a higher heating efficiency; (summer) can also provide the domestic hot-water when can provide refrigeration when outdoor temperature is higher on the other hand, overcome the shortcoming of Teat pump boiler function singleness, also overcome the Wind-cooling type heat pump because ambient temperature descends and caused the contradiction that heating capacity descends and heating load need increase.Therefore, the enforcement by this programme can fully utilize available energy, realizes that heat pump carries out cooling, heats and provide domestic hot-water's system matches.
Summary of the invention
The purpose of this invention is to provide a kind of can heating, cooling and the heat pump combined with water heater system of supplying with the domestic hot-water, will make the energy obtain more rational and effective utilization.
Describe below in conjunction with accompanying drawing 1~3 pair of system logic of the present invention, system flow and waterway control system.Heat pump combined with water heater system comprises: compressor 1, water cooling heat exchanger 2, air source or water source heat exchanger 3, electric T-shaped valve 4, electric expansion valve 5, check valve 6, water tank 7, electronic temperature-sensing valve 8, water pump 9 etc.The present invention is that to drive with water or air with motor compressor be the compressing hot pump device (as Fig. 1) of Cooling and Heat Source.The high-pressure side of compressor 1 is connected to the import of first water cooling heat exchanger 2-1 working medium side.The outlet of water cooling heat exchanger 2-1 working medium side is connected to electric T-shaped valve 4, and two mouths that electric T-shaped valve 4 is other: the one tunnel is connected to the import of the 3rd water cooling heat exchanger 2-3 working medium side; Another road is connected to the import of first air source or water source heat exchanger 3-1 working medium side by the 4th check valve 6-4.The outlet of the 3rd water cooling heat exchanger 2-3 working medium side is connected to the import of second water cooling heat exchanger 2-2 working medium side.The outlet of water cooling heat exchanger 2-2 working medium side is connected to the import of first air source or water source heat exchanger 3-1 working medium side through second electric expansion valve 5-2, first check valve 6-1; The outlet of second water cooling heat exchanger 2-2 working medium side has one the tunnel to be connected to the import of first air source or water source heat exchanger 3-1 working medium side through the 3rd check valve 6-3 in addition.The low-pressure end of compressor 1 has two-way: leading up to second check valve 6-2, second air source or water source heat exchanger 3-2, first electric expansion valve 5-1 also inserts the import of water cooling heat exchanger 2-2 working medium side; Another road links to each other with the outlet of air source or water source heat exchanger 3-1 working medium side by the 5th check valve 6-5.Cooling water is connected to electronic temperature control triple valve 10 through electronic temperature-sensing valve 8, water pump 9 in the water tank 7, and two other mouth of electronic temperature control triple valve 10: the one tunnel is connected to running water pipe network 11; Another road is connected to the import of water cooling heat exchanger 2-1 water side.Water cooling heat exchanger 2-1 cooling water returns 7, the second water cooling heat exchanger 2-2 of water tank water inlet by the road and is connected to running water pipe network 11; The import of delivery port and water cooling heat exchanger 2-1 water side links.The water side of water cooling heat exchanger 2-3 is heating grid 12.Water cooling heat exchanger 2-3 and water cooling heat exchanger 2-1 are used for the domestic hot-water, and water cooling heat exchanger 2-3 is used to provide floor heating hot water simultaneously.Because water tank 7, temperature control valve 8 and water pump 9 are to be serially connected, so water pump 9 outlet temperatures equal the temperature of water tank substantially, after the temperature of water tank is higher or lower than design temperature, temperature control valve 8 and water pump 9 interlocks.When the outlet water temperature of water pump 9 is lower than the outlet temperature of water cooling heat exchanger 2-2 cold-producing medium, connect water cooling heat exchanger 2-2 by electric T-shaped valve 10 during summer operation, water enters water cooling heat exchanger 2-2 and carries out heat exchange; When the outlet water temperature of water pump 9 is higher than the outlet temperature of water cooling heat exchanger 2-2 cold-producing medium, connect water cooling heat exchanger 2-1 by electric T-shaped valve 10.This scheme has been avoided the rising along with water temperature, causes the rising of the refrigerant outlet temperature of water cooling heat exchanger 2-2, so that the decline of system effectiveness.
Description of drawings
Fig. 1 is an overall logic graph of a relation of the present invention.
Fig. 2 is winter condition heat pump combined with water heater system operational system figure.Pipeline shown in the thick dashed line is a not flow line of fluid among the figure, and pipeline is the cryogenic fluid pipeline shown in the thick double dot dash line, and pipeline shown in the heavy line is the high temperature refrigerant pipeline.
Fig. 3 is summer condition heat pump combined with water heater system operational system figure.Pipeline shown in the thick dashed line is a not flow line of fluid among the figure, and pipeline is the cryogenic fluid pipeline shown in the thick double dot dash line, and pipeline shown in the phase solid line is the high temperature refrigerant pipeline.
The specific embodiment
Below realizing heat supply in winter and summer cooling, and provide the domestic hot-water to supply with to be specific embodiment, the present invention is further illustrated:
Winter condition: the network structure of heat pump combined with water heater system or system flow are (as Fig. 2).Electric expansion valve 5-1 closes, and electric expansion valve 5-2 opens.Electric T-shaped valve 4 is communicated with water cooling heat exchanger 2-1 with water cooling heat exchanger 2-3, simultaneously with the path blockade of air source or water source heat exchanger 3-2.Cold-producing medium carries out throttling by electric expansion valve 5-2, and cold-producing medium enters the air source or water source heat exchanger 3-1 evaporates after the throttling, and check valve 6-2, check valve 6-3 check valve 6-4 will stop the cold-producing medium reverse flow this moment.Be that compressor 1 high-pressure side carries out heat exchange by water cooling heat exchanger 2-1 and domestic hot-water successively with high-temperature high-pressure refrigerant, cold-producing medium after the heat exchange enters water cooling heat exchanger 2-3 and heating hot water carries out heat exchange, and cold-producing medium enters water cooling heat exchanger 2-2 and carries out heat exchange with the domestic hot-water once more after the heat exchange.Cold-producing medium enters by electric expansion valve 5-2 throttling decrease temperature and pressure after further reducing temperature, and the cold-producing medium after the cooling enters compressor and compresses by air source or water source heat exchanger 3-1 behind the evaporation and heat-exchange, finish a circulation.The present invention adopts and enters water cooling heat exchanger for three times to carry out heat exchange be in order to realize the step coupling of cold-producing medium energy, low and the leaving water temperature height of domestic hot-water's inflow temperature, floor heating then is higher than domestic hot-water's inflow temperature with the temperature of hot water but is lower than domestic hot-water's leaving water temperature.Therefore allow the domestic hot-water of low temperature and refrigerant of low temperature carry out heat exchange earlier at water cooling heat exchanger 2-2, the floor heating of middle temperature enters water cooling heat exchanger 2-3 with hot water and carries out heat exchange, and the domestic hot-water that a heat exchange finishes enters water cooling heat exchanger 2-1 and high temperature refrigerant carries out secondary heat exchange, reaches the high purpose of leaving water temperature.This scheme has realized the cold-producing medium cascaded utilization of energy, has realized the rational temperature coupling simultaneously, and has reduced the refrigerant outlet chilling temperature, can improve the operational efficiency of system.In service in the winter time, air source or water source heat exchanger 3-2 do not move, and air source or water source heat exchanger 3-1 play the effect of evaporimeter.Can move according to winter condition at the Teat pump boiler in season that does not need air-conditioning.After entering water cooling heat exchanger 2-2 and carry out a heat exchange from the water at low temperature of running water pipe network 11, enter water cooling heat exchanger 2-1 and carry out secondary heat exchange, obtain the domestic hot-water of high temperature.When the water temperature in water tank 7 is lower than setting value, temperature-sensing valve 8 is opened, chain water pump 9 starts, when the water temperature of water tank 7 be lower than water cooling heat exchanger 2-2 refrigerant outlet temperature then the moving triple valve 10 of water power open and connect water cooling heat exchanger 2-2, the domestic hot-water carries out a heat exchange, enter water cooling heat exchanger 2-1 then and carry out secondary heat exchange, obtain the domestic hot-water of high temperature; When the water tank water temperature be higher than water cooling heat exchanger 2-2 refrigerant outlet temperature then electric T-shaped valve 10 open and connect water cooling heat exchanger 2-1, the domestic hot-water carries out heat exchange, obtains the domestic hot-water of high temperature.Enter water cooling heat exchanger 2-3 from the backwater of the hot water pipe net 12 of floor heating and heat, obtain the required hot water of floor heating.
Summer condition: the network structure of heat pump combined with water heater system or system flow are (as Fig. 3): electric expansion valve 5-1 opens, and electric expansion valve 5-2 closes.Electric T-shaped valve 4 is communicated with water cooling heat exchanger 2-1 with air source or water source heat exchanger 3-1, simultaneously water cooling heat exchanger 2-3 is closed.Check valve 6-1, check valve 6-5 will stop the cold-producing medium reverse flow at this moment.The high temperature refrigerant that is compressor 1 high-pressure side carries out heat exchange by water cooling heat exchanger 2-1 and domestic hot-water successively, cold-producing medium after the heat exchange enters air source or the further heat exchange of water source heat exchanger 3-1, cold-producing medium enters water cooling heat exchanger 2-2 and carries out heat exchange with the domestic hot-water once more after the heat exchange, further reduces the temperature discharges heat of cold-producing medium.Cold-producing medium is by electric expansion valve 5-1 throttling decrease temperature and pressure then, cold-producing medium after the cooling enters evaporation and heat-exchange among air source or the water source heat exchanger 3-2, for air-conditioning system provides the empty G﹠W of low temperature, the cold-producing medium after the evaporation enters compressor once more and finishes a circulation.Three heat exchange of cold-producing medium have been adopted equally at summer operation, because outdoor temperature was higher than domestic hot-water's inflow temperature but was lower than domestic hot-water's leaving water temperature summer, therefore allow the domestic hot-water of low temperature and refrigerant of low temperature carry out heat exchange earlier at water cooling heat exchanger 2-2, the cold-producing medium of middle temperature enters the air source or water source heat exchanger 3-1 carries out heat exchange, and the domestic hot-water that a heat exchange finishes enters water cooling heat exchanger 2-1 and high temperature refrigerant carries out secondary heat exchange, reaches the high purpose of leaving water temperature.This scheme and has reduced the refrigerant outlet chilling temperature when having realized the cold-producing medium cascaded utilization of energy, can improve the operational efficiency of system.In addition, because the demand of hot water is an instability, simultaneously the demand of hot water may not match with the demand of indoor refrigeration duty, and therefore in demand domestic hot-water not and indoor refrigeration requirement big the time, air source or water source heat exchanger 3-1 have played the effect that compensation is dispelled the heat.After entering water cooling heat exchanger 2-2 and carry out a heat exchange from the water at low temperature of running water pipe network 11, enter water cooling heat exchanger 2-1 and carry out secondary heat exchange, obtain the domestic hot-water of high temperature.When the water temperature in water tank 7 is lower than setting value, temperature-sensing valve 8 is opened, chain water pump 9 starts, when the water tank water temperature is lower than the then moving triple valve 10 unlatching connection water cooling heat exchanger 2-2 of water power of water cooling heat exchanger 2-2 refrigerant outlet temperature, the domestic hot-water carries out a heat exchange, enter water cooling heat exchanger 2-1 then and carry out secondary heat exchange, obtain the domestic hot-water of high temperature; When the water tank water temperature be higher than water cooling heat exchanger 2-2 refrigerant outlet temperature then electric T-shaped valve 10 open and connect water cooling heat exchanger 2-1, the domestic hot-water carries out heat exchange, obtains the domestic hot-water of high temperature.Air or water and air source or water source heat exchanger 3-2 carry out evaporation and heat-exchange, obtain the required cold of air-conditioning system.
Advantage of the present invention and beneficial effect are, make heat pump water heater system, satisfy summer cooling, the need of Winter heat supply Ask, switch by simple system, can satisfy again the user to domestic hot-water's demand, energy is reasonably utilized. Therefore the present invention has characteristics simple in structure, easy to adjust. Applying with energy-conservation of heat pump water heater system played Positive facilitation.

Claims (8)

1. heat pump combined with water heater system, comprise: compressor (1), water cooling heat exchanger (2), air source or water source heat exchanger (3), electric T-shaped valve (4), electric expansion valve (5), check valve (6), water tank (7), electronic temperature-sensing valve (8), water pump (9), it is characterized in that compressor (1) high-pressure side is connected to the import of first water cooling heat exchanger (2-1) working medium side, the outlet of water cooling heat exchanger (2-1) working medium side is connected to electric T-shaped valve (4), and two other mouth of electric T-shaped valve (4): the one tunnel is connected to the import of the 3rd water cooling heat exchanger (2-3) working medium side; Another road is connected to the import of first air source or water source heat exchanger (3-1) working medium side by the 4th check valve (6-4), the outlet of the 3rd water cooling heat exchanger (2-3) working medium side is connected to the import of second water cooling heat exchanger (2-2) working medium side, between second water cooling heat exchanger (2-2) and the 3rd water cooling heat exchanger (2-3) working medium side, there is pipeline to link to each other, the outlet of water cooling heat exchanger (2-2) working medium side is through second electric expansion valve (5-2), first check valve (6-1) is connected to the import of first air source or water source heat exchanger (3-1) working medium side, the outlet of second water cooling heat exchanger (2-2) working medium side has one the tunnel to be connected to the import of first air source or water source heat exchanger (3-1) working medium side through the 3rd check valve (6-3) in addition, and compressor (1) low-pressure end has two-way: lead up to second check valve (6-2), second air source or water source heat exchanger (3-2), first electric expansion valve (5-1) also inserts the outlet of second water cooling heat exchanger (2-2) working medium side; Another road links to each other with the outlet of first air source or water source heat exchanger (3-1) working medium side by the 5th check valve (6-5), cooling water is connected to electronic temperature control triple valve (10) through electronic temperature-sensing valve (8), water pump (9) in the water tank (7), and two other mouth of electronic temperature control triple valve (10): the one tunnel is connected to running water pipe network (11); Another road is connected to the import of first water cooling heat exchanger (2-1) water side, water cooling heat exchanger (2-1) cooling water returns water tank (7) by the road, described second water cooling heat exchanger (2-2) water inlet is connected to running water pipe network (11), the import of delivery port and first water cooling heat exchanger (2-1) water side links, and the water side of described the 3rd water cooling heat exchanger (2-3) is heating grid (12).
2. according to the described heat pump combined with water heater system of claim 1, it is characterized in that the winter operation network structure is: described first electric expansion valve (5-1) is closed, second electric expansion valve (5-2) opened, described electric T-shaped valve (4) is communicated with described first water cooling heat exchanger (2-1), described second air source or water source heat exchanger (3-2) is closed with described the 3rd water cooling heat exchanger (2-3), described second check valve (6-2), the 3rd check valve (6-3), the 4th check valve (6-4) stop the cold-producing medium reverse flow.
3. according to the described heat pump combined with water heater system of claim 1, it is characterized in that described summer operation network structure is: described first electric expansion valve (5-1) is opened, second electric expansion valve (5-2) closed, described electric T-shaped valve (4) is communicated with first water cooling heat exchanger (2-1), described the 3rd water cooling heat exchanger (2-3) closed with described first air source or water source heat exchanger (3-1), and described first check valve (6-1), the 5th check valve (6-5) stop the cold-producing medium reverse flow.
4. according to the described heat pump combined with water heater system of claim 1, it is characterized in that described second water cooling heat exchanger (2-2) and described first water cooling heat exchanger (2-1) are used for the domestic hot-water.
5. according to the described heat pump combined with water heater system of claim 1, it is characterized in that described the 3rd water cooling heat exchanger (2-3) is used to provide floor heating hot water.
6. according to the described heat pump combined with water heater system of claim 1, the high temperature refrigerant that it is characterized in that described compressor (1) high-pressure side is used for summer successively by described first water cooling heat exchanger (2-1), first air source or water source heat exchanger (3-1) and second water cooling heat exchanger (2-2) discharges heat.
7. according to the described heat pump combined with water heater system of claim 1, the high temperature refrigerant that it is characterized in that described compressor (1) high-pressure side is used for winter successively by first water cooling heat exchanger (2-1), the 3rd water cooling heat exchanger (2-3) and second water cooling heat exchanger (2-2) discharges heat.
8. according to the described heat pump combined with water heater system of claim 1, it is characterized in that the outlet water temperature of described water pump (9) is lower than the outlet temperature of described second water cooling heat exchanger (2-2), connect second water cooling heat exchanger (2-2) by described electric T-shaped valve (10); The outlet water temperature of described water pump (9) is higher than the outlet temperature of described second water cooling heat exchanger (2-2), connects first water cooling heat exchanger (2-1) by described electric T-shaped valve (10).
CNB2007100571332A 2007-04-13 2007-04-13 Heat pump combined with water heater system Expired - Fee Related CN100451493C (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101592353B (en) * 2008-05-27 2011-11-09 苏庆泉 Heat supply system and heat supply method
CN103105020A (en) * 2011-11-14 2013-05-15 松下电器产业株式会社 Cold/hot water supply apparatus
CN108826419A (en) * 2018-08-16 2018-11-16 爱能森(深圳)高端智能装备有限公司 A kind of heat pump system, heating system and changes in temperature co-feeding system
CN109708332A (en) * 2017-10-26 2019-05-03 中国科学院广州能源研究所 A kind of exhaust heat stepped recycling comprehensive utilization device of gas-fired heat pump
WO2021228018A1 (en) * 2020-08-27 2021-11-18 青岛海尔空调电子有限公司 Air conditioning unit and control method therefor
CN115247890A (en) * 2021-04-09 2022-10-28 林重仁 Simple device of multifunctional electric energy heat storage type water heater

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2457532Y (en) * 2000-12-28 2001-10-31 北京森博苑科技有限公司 Wind cooling heat pump device with living hot water
CN1253685C (en) * 2003-10-31 2006-04-26 天津大学 Gas-fired heat pump system of water source
KR101013377B1 (en) * 2003-12-30 2011-02-14 삼성전자주식회사 Complex Heating And Cooling System

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101592353B (en) * 2008-05-27 2011-11-09 苏庆泉 Heat supply system and heat supply method
CN103105020A (en) * 2011-11-14 2013-05-15 松下电器产业株式会社 Cold/hot water supply apparatus
CN103105020B (en) * 2011-11-14 2015-12-16 松下电器产业株式会社 Hot and cold water water supply installation
CN109708332A (en) * 2017-10-26 2019-05-03 中国科学院广州能源研究所 A kind of exhaust heat stepped recycling comprehensive utilization device of gas-fired heat pump
CN108826419A (en) * 2018-08-16 2018-11-16 爱能森(深圳)高端智能装备有限公司 A kind of heat pump system, heating system and changes in temperature co-feeding system
WO2021228018A1 (en) * 2020-08-27 2021-11-18 青岛海尔空调电子有限公司 Air conditioning unit and control method therefor
CN114110833A (en) * 2020-08-27 2022-03-01 青岛海尔空调电子有限公司 Air conditioning unit and control method thereof
CN114110833B (en) * 2020-08-27 2023-02-28 青岛海尔空调电子有限公司 Air conditioning unit and control method thereof
CN115247890A (en) * 2021-04-09 2022-10-28 林重仁 Simple device of multifunctional electric energy heat storage type water heater

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