CN101832686A - Multifunctional cold and heat combined supply heat pump system - Google Patents
Multifunctional cold and heat combined supply heat pump system Download PDFInfo
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- CN101832686A CN101832686A CN201010185871A CN201010185871A CN101832686A CN 101832686 A CN101832686 A CN 101832686A CN 201010185871 A CN201010185871 A CN 201010185871A CN 201010185871 A CN201010185871 A CN 201010185871A CN 101832686 A CN101832686 A CN 101832686A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 239000012267 brine Substances 0.000 claims description 9
- 239000012266 salt solution Substances 0.000 claims description 9
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000008399 tap water Substances 0.000 abstract 1
- 235000020679 tap water Nutrition 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a multifunctional cold and heat combined supply heat pump system which comprises a draught fan, a water distributing device, a material filling area, a shutter, a strut, a water heating tank, a heat-end heat exchanger, a check valve, a first condenser, a first compressor, a first evaporator, a second condenser, a second compressor, a second evaporator, a cold-end heat exchanger, a cold supply area, a heat exchange tower, a tap water storing tank, a three-way valve, a concentrated salt water storing tank, a first expanding valve, a second expanding valve, a valve, a water pump and a pipeline connecting system. Two heat pumps adopt a serial and parallel connection adjustable pipeline system and a circulation working medium adjustable heat exchange tower system, thereby solving the problem of frosting of the evaporators in winter and the problem of great reduction of the running efficiency of the heat pumps in extreme climate and leading a cold and heat combined supply heat pump to efficiently run in various climates; and the system can be used for large public systems, such as hotels, factories, stores, and the like and greatly widens the application range of the heat pump system.
Description
Technical field
The present invention relates to heat pump, relate in particular to a kind of multifunctional cold and heat combined supply heat pump system.
Background technology
Environmental pollution and energy crisis have become two hang-ups of current society, the elementary tactics that China has developed simultaneously " energy-saving and emission-reduction " conduct and economic development.Energy resource structure the poor efficiency unreasonable and energy is used, and not only has influence on China's economic construction and development, also has influence on the surrounding environment that we depend on for existence simultaneously.Flourish along with hotel class building in recent years, energy resource consumption in the class building of hotel is also more and more serious, it has brought huge pressure not only for causes such as the energy, environmental protection according to the investigation of relevant document, and the operator who gives hotel class building is with no small economic impact.The energy consumption cost of some hotel class building accounts for about 15% of annual revenue, and the energy resource consumption of hotel class building is huge, and energy consumption cost is also considerable, and unit are energy consumption total cost reaches 100 yuan/m
2-200 yuan/m
2About.
Modern hotel mostly adopts central air conditioner system to provide freeze and heat supply in winter summer, and domestic water generally takes fuel oil or gas fired-boiler to heat.Central air-conditioning unit when operation in summer, in indoor conveying cold air, also by cooling tower to a large amount of used heat of outdoor discharging.If the used heat that is discharged in the atmosphere when central air-conditioning is moved reclaims, make the hot water about 50 ℃, domestic hot-water supply uses, having saved fuel oil, the gas expense of boiler for producing hot water like this uses, the environmental pollution that causes to airborne release tail gas in the time of can also reducing boiler operatiopn is to kill two birds with one stone.
Realize aforesaid conception, just must transform central air conditioner system, its improved essence is exactly the heat pump of cold and heat combined supply, and it can realize that cold and hot two ends utilize simultaneously, its COP is in theory up to more than 6, so its development utilization prospect is good by many people.
There are like this some problems in traditional heat pump in running: 1. under extreme weather conditions (outdoor temperature be higher than 40 ℃ or be lower than 0 ℃), be the assurance demand, the compression ratio of compressor needs to raise greatly, and running efficiency of system (COP) sharply descends, and energy consumption raises; 2. in the winter time, when the water source temperature was lower than 5 ℃, serious frosting phenomenon can appear in evaporimeter, caused heat pump to be difficult to operation; 3. in transitional season, when the required heat of hot water circuit during, cause the self-protection of unit most probably and shut down less than the 1O% of heat pump main frame heating capacity, cause the machine set system frequent starting; 4. the change working in water route is difficult to control, and life-span of main frame is had a negative impact.Above problem all causes the application of cold and heat combined supply heat pump to run into greatly obstruction.
Summary of the invention
The objective of the invention is provides a kind of multifunctional cold and heat combined supply heat pump system at above problem.
Multifunctional cold and heat combined supply heat pump system comprises hot-water cylinder, hot end heat exchanger, check-valves, first condenser, first compressor, first evaporimeter, second condenser, second compressor, second evaporimeter, cool end heat exchanger, the cooling district, heat exchange columns, the running water storage tank, triple valve, the strong brine storage tank, first expansion valve, second expansion valve, the connecting line system, valve A, valve C1, valve C2, valve D, valve E1, valve E2, valve E3, valve E4, valve E5, valve E6, valve G1, valve G2, valve H1, valve H2, valve K1, valve K2, valve K3, valve K4, valve K5, valve K6, pump B1, pump B2, pump B3, pump B4, pump B5; Heat exchange columns one bring out the mouth of a river through pump B1 respectively with valve A one end, valve D one end links to each other, the valve D other end respectively with valve E2 one end, valve E6 one end links to each other with check-valves one end, the check-valves other end links to each other with hot end heat exchanger hot water outlet end, heat exchanger cooling water outlet end links to each other with hot-water cylinder one end by pump B5, the hot-water cylinder other end links to each other with heat exchanger cooling water inlet end, hot end heat exchanger hot water inlet end by valve H1 respectively with valve G1 one end, valve K3 one end links to each other with pump B3 one end, the pump B3 other end links to each other with valve K4 one end, the valve K4 other end links to each other with the valve K3 other end, and link to each other with valve E4 one end with the first condenser inlet end respectively again, the valve E6 other end links to each other with the first condensator outlet end, the valve E2 other end respectively with valve C1 one end, pump B4 one end links to each other with valve K5 one end, the valve C1 other end is imported and exported with first evaporimeter one respectively and is linked to each other with valve E1 one end, the pump B4 other end links to each other with valve K6 one end, the valve K6 other end is imported and exported with second condenser one with the valve K5 other end respectively and is linked to each other, the valve A other end links to each other with valve E5 one end, the valve E5 other end links to each other with second evaporator, the valve E1 other end links to each other with cool end heat exchanger cooling water outlet end by check-valves, cool end heat exchanger hot water inlet end links to each other with the cooling district respectively with cool end heat exchanger hot water outlet end, cool end heat exchanger cooling water inlet end by valve H2 respectively with pump B2 one end, valve K2 one end links to each other with valve G2 one end, the pump B2 other end by valve K1 respectively with second evaporator outlet, valve E3 one end links to each other with the valve K2 other end, the valve E3 other end links to each other with the connecting line of valve C2 one end and first another import and export of evaporimeter is middle, the valve C2 other end links to each other with the valve E4 other end with another import and export of second evaporimeter respectively, and the valve G1 other end and the valve G2 other end are connected to the water dispensing apparatus of heat exchange columns jointly.Heat exchange columns other end delivery port links to each other with the strong brine storage tank with the running water storage tank respectively by triple valve.
Described heat pump adopts salt solution as circulatory mediator winter, adopts summer water as circulatory mediator.The material that described valve, pipeline adopted is stainless steel, PVC or ceramic material.The material that described first evaporimeter, second evaporimeter adopt is the ripple duct ligation.
The present invention compared with prior art has following beneficial effect:
(1) adopts connection in series-parallel can regulate two heat pumps, make heat pump under extreme climate (environment temperature be lower than 5 ℃ or be higher than 35 ℃), still can keep higher running efficiency (COP).
(2) heat exchange columns adopts the structure that working medium can be switched flexibly, can neatly working medium be switched to salt solution in the winter time, so this heat pump can overcome the extensive evaporimeter frosting problem that exists of heat pump in the past, has therefore strengthened the applicable surface of heat pump.
(3) because evaporimeter adopts bellows structure, strengthened the heat exchange function of cold junction.
Description of drawings
Fig. 1 is the structural representation of multifunctional cold and heat combined supply heat pump;
Among the figure, air-introduced machine 1, water dispensing apparatus 2, packing area 3, shutter 4, pillar 5, hot-water cylinder 6, hot end heat exchanger 7, check-valves 8, first condenser 9, first compressor 10, first evaporimeter 11, second condenser 12, second compressor 13, second evaporimeter 14, cool end heat exchanger 15, cooling district 16, heat exchange columns 17, running water storage tank 18, triple valve 19, strong brine storage tank 20, first expansion valve 21, second expansion valve 22, connecting line system 23, valve A, valve C1, valve C2, valve D, valve E1, valve E2, valve E3, valve E4, valve E5, valve E6, valve G1, valve G2, valve H1, valve H2, valve K1, valve K2, valve K3, valve K4, valve K5, valve K6, pump B1, pump B2, pump B3, pump B4, pump B5, pump B6.
The specific embodiment
As shown in Figure 1, multifunctional cold and heat combined supply heat pump system comprises hot-water cylinder 6, hot end heat exchanger 7, check-valves 8, first condenser 9, first compressor 10, first evaporimeter 11, second condenser 12, second compressor 13, second evaporimeter 14, cool end heat exchanger 15, cooling district 16, heat exchange columns 17, running water storage tank 18, triple valve 19, strong brine storage tank 20, first expansion valve 21, second expansion valve 22, connecting line system 23, valve A, valve C1, valve C2, valve D, valve E1, valve E2, valve E3, valve E4, valve E5, valve E6, valve G1, valve G2, valve H1, valve H2, valve K1, valve K2, valve K3, valve K4, valve K5, valve K6, pump B 1, pump B2, pump B3, pump B4, pump B5; Heat exchange columns 17 1 bring out the mouth of a river through pump B1 respectively with valve A one end, valve D one end links to each other, the valve D other end respectively with valve E2 one end, valve E6 one end links to each other with check-valves 8 one ends, check-valves 8 other ends link to each other with hot end heat exchanger 7 hot water outlet ends, heat exchanger 7 cooling water outlet ends link to each other with hot-water cylinder 6 one ends by pump B5, hot-water cylinder 6 other ends link to each other with heat exchanger 7 cooling water inlet ends, hot end heat exchanger 7 hot water inlet ends by valve H1 respectively with valve G1 one end, valve K3 one end links to each other with pump B3 one end, the pump B3 other end links to each other with valve K4 one end, the valve K4 other end links to each other with the valve K3 other end, and link to each other with valve E4 one end with first condenser, 9 entrance points respectively again, the valve E6 other end links to each other with first condenser, 9 ports of export, the valve E2 other end respectively with valve C1 one end, pump B4 one end links to each other with valve K5 one end, the valve C1 other end is imported and exported with first evaporimeter 11 1 respectively and is linked to each other with valve E1 one end, the pump B4 other end links to each other with valve K6 one end, the valve K6 other end is imported and exported with second condenser 12 1 with the valve K5 other end respectively and is linked to each other, the valve A other end links to each other with valve E5 one end, the valve E5 other end links to each other with 14 imports of second evaporimeter, the valve E1 other end links to each other with cool end heat exchanger 15 cooling water outlet ends by check-valves, cool end heat exchanger 15 hot water inlet ends link to each other with cooling district 16 respectively with cool end heat exchanger 15 hot water outlet ends, cool end heat exchanger 15 cooling water inlet ends by valve H2 respectively with pump B2 one end, valve K2 one end links to each other with valve G2 one end, the pump B2 other end exports with second evaporimeter 14 respectively by valve K1, valve E3 one end links to each other with the valve K2 other end, the valve E3 other end links to each other with the connecting line of valve C2 one end and 11 another import and export of first evaporimeter is middle, the valve C2 other end links to each other with the valve E4 other end with 12 another import and export of second evaporimeter respectively, and the valve G1 other end and the valve G2 other end are connected to the water dispensing apparatus 2 of heat exchange columns 17 jointly.Heat exchange columns 17 other end delivery ports link to each other with strong brine storage tank 20 with running water storage tank 18 respectively by triple valve 19.
Described heat pump adopts salt solution as circulatory mediator winter, adopts summer water as circulatory mediator.The material that described valve, pipeline adopted is stainless steel, PVC or ceramic material.The material that described first evaporimeter 11, second evaporimeter 14 adopt is the ripple duct ligation.
Pump B6 and heat exchange columns bottom links to each other, is used for environment temperature and crosses that heat-exchange working medium is converted to salt solution when hanging down, to prevent evaporimeter frosting.Two heat pumps adopt the pipeline result shown in the accompanying drawing 1 to realize series-parallel switching, the external hot end heat exchanger of first condenser, the external cool end heat exchanger of second evaporimeter.When default was list refrigeration (heat) operating mode, used heat (cold) was discharged by heat exchange columns.System's worst cold case in the winter time is lower than 5 ℃ of use brine layers down, all use the clear water layer other seasons, because the freezing point of salt solution is lower than water, and variation along with concentration, freezing point also can gradually change, so around this principle, just can prevent frosting in winter phenomenon effectively by regulating brine strength, heat exchange columns bottom trickle area edge uses shutter, avoids the salt solution contaminated land that is blown out.Two heat pumps look operating mode is different with demand both can singly be opened, but also standard-sized sheet.Be higher than 40 ℃ or be lower than under 0 ℃ of condition in the extreme ambient temperature outdoor temperature, two standard-sized sheets, and connect with tandem, guarantee that obvious reduction does not appear in COP.The concrete operating condition of heat pump is as follows:
If system adopts simple heating condition, when environment temperature was lower than 5 ℃, two these machines of heat pump adopted the mode that is connected in series, and first condenser and second evaporimeter composition close circulation, and inner loop working medium is water, and circulation is driven by internal circulation pump.First evaporimeter heating institute calorific requirement is all provided by the circulation of the salt solution in the heat exchange columns, under salt solution drenches from the heat exchange columns top through the circulation back and through packing area and air heat exchange, absorb airborne heat, first condenser is by the water in the hot end heat exchanger cylinder.When environment temperature was higher than 5 ℃, two these machines of heat pump adopted the separate units mode that takes turns to operate, and measure greatly as the hot water demand, adopt two modes that are connected in parallel, the while heat supply.The mode of separate unit heat pump work on the basis of aforementioned parallel operation, slightly adjusts: when only heat pump one was worked, E1, E3, E6 closed, and when only heat pump two was worked, E2, E4, E5 closed.
If system adopts simple heating condition, when environment temperature was higher than 35 ℃, two these machines of heat pump were taked the mode of being connected in series, and working medium is water entirely, and first condenser and second evaporimeter composition close circulation, and the circulation internal circulation pump drives.First condenser is cooled off by the circulation of the water in the heat exchange columns, and water drenches from the heat exchange columns top through the circulation back, the heat transferred air.Second evaporimeter is by the cool end heat exchanger cooling.When environment temperature was lower than 35 ℃, two these machines of heat pump adopt the separate units mode that takes turns to operate, and were big as the refrigeration demand amount, adopt two modes that are connected in parallel, and freeze simultaneously.The mode of separate unit heat pump work on the basis of aforementioned parallel operation, slightly adjusts: when only heat pump one was worked, E1, E3, E6 closed, and when only heat pump two was worked, E2, E4, E5 closed.
When system's employing cold and heat combined supply operating mode, two these machines of heat pump are taked the tandem working mode, and cycle fluid is water entirely, and heat exchange columns only is used for quantity of circulating water to be regulated., the evaporimeter composition of the condenser of first heat pump and second heat pump closes circulation, and inner loop working medium is water, and circulation is driven by internal circulation pump.First condenser is by the water in the hot end heat exchanger cylinder.Second evaporimeter is by the cool end heat exchanger cooling.
System's connection in series-parallel and heat cold) operation control method is as shown in the table:
Claims (4)
1. a multifunctional cold and heat combined supply heat pump system is characterized in that comprising hot-water cylinder (6), hot end heat exchanger (7), check-valves (8), first condenser (9), first compressor (10), first evaporimeter (11), second condenser (12), second compressor (13), second evaporimeter (14), cool end heat exchanger (15), cooling district (16), heat exchange columns (17), running water storage tank (18), triple valve (19), strong brine storage tank (20), first expansion valve (21), second expansion valve (22), connecting line system (23), valve A, valve C1, valve C2, valve D, valve E1, valve E2, valve E3, valve E4, valve E5, valve E6, valve G1, valve G2, valve H1, valve H2, valve K1, valve K2, valve K3, valve K4, valve K5, valve K6, pump B1, pump B2, pump B3, pump B4, pump B5; Heat exchange columns (17) one bring out the mouth of a river through pump B 1 respectively with valve A one end, valve D one end links to each other, the valve D other end respectively with valve E2 one end, valve E6 one end links to each other with check-valves (8) one ends, check-valves (8) other end links to each other with hot end heat exchanger (7) hot water outlet end, heat exchanger (7) cooling water outlet end links to each other with hot-water cylinder (6) one ends by pump B5, hot-water cylinder (6) other end links to each other with heat exchanger (7) cooling water inlet end, hot end heat exchanger (7) hot water inlet end by valve H1 respectively with valve G1 one end, valve K3 one end links to each other with pump B3 one end, the pump B3 other end links to each other with valve K4 one end, the valve K4 other end links to each other with the valve K3 other end, and link to each other with valve E4 one end with first condenser (9) entrance point respectively again, the valve E6 other end links to each other with first condenser (9) port of export, the valve E2 other end respectively with valve C1 one end, pump B4 one end links to each other with valve K5 one end, the valve C1 other end is imported and exported with first evaporimeter (11) respectively and is linked to each other with valve E1 one end, the pump B4 other end links to each other with valve K6 one end, the valve K6 other end is imported and exported with second condenser (12) with the valve K5 other end respectively and is linked to each other, the valve A other end links to each other with valve E5 one end, the valve E5 other end links to each other with second evaporimeter (14) import, the valve E1 other end links to each other with cool end heat exchanger (15) cooling water outlet end by check-valves, cool end heat exchanger (15) hot water inlet end links to each other with cooling district (16) respectively with cool end heat exchanger (15) hot water outlet end, cool end heat exchanger (15) cooling water inlet end by valve H2 respectively with pump B2 one end, valve K2 one end links to each other with valve G2 one end, the pump B2 other end exports with second evaporimeter (14) respectively by valve K1, valve E3 one end links to each other with the valve K2 other end, the valve E3 other end links to each other with the connecting line of valve C2 one end and another import and export of first evaporimeter (11) is middle, the valve C2 other end links to each other with the valve E4 other end with another import and export of second evaporimeter (12) respectively, and the valve G1 other end and the valve G2 other end are connected to the water dispensing apparatus (2) of heat exchange columns (17) jointly.Heat exchange columns (17) other end delivery port links to each other with strong brine storage tank (20) with running water storage tank (18) respectively by triple valve (19).
2. a kind of multifunctional cold and heat combined supply heat pump system according to claim 1 is characterized in that described heat pump adopts salt solution as circulatory mediator winter, adopts water as circulatory mediator summer.
3. a kind of multifunctional cold and heat combined supply heat pump system according to claim 1 is characterized in that the material that described valve, pipeline adopts is stainless steel, PVC or ceramic material.
4. a kind of multifunctional cold and heat combined supply heat pump system according to claim 1 is characterized in that the material that described first evaporimeter (11), second evaporimeter (14) adopt is a bellows structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101858717A CN101832686B (en) | 2010-05-28 | 2010-05-28 | Multifunctional cold and heat combined supply heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101858717A CN101832686B (en) | 2010-05-28 | 2010-05-28 | Multifunctional cold and heat combined supply heat pump system |
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| Publication Number | Publication Date |
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| CN101832686A true CN101832686A (en) | 2010-09-15 |
| CN101832686B CN101832686B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101858717A Expired - Fee Related CN101832686B (en) | 2010-05-28 | 2010-05-28 | Multifunctional cold and heat combined supply heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120315A (en) * | 2016-11-28 | 2018-06-05 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487027A (en) * | 1982-04-05 | 1984-12-11 | Institute Of Gas Technology | Hyperabsorption space conditioning process and apparatus |
| WO1993005349A1 (en) * | 1991-09-09 | 1993-03-18 | Rocky Research | Dual-temperature heat pump apparatus and system |
| JP2005077037A (en) * | 2003-09-02 | 2005-03-24 | Rinnai Corp | Hybrid absorption heat pump system |
| CN1811303A (en) * | 2006-02-18 | 2006-08-02 | 李华玉 | Single-effect heat pump/double-effect cooling absorption set and combined heat, electricity and cold supply system |
| CN100383474C (en) * | 2005-06-27 | 2008-04-23 | 北京北控恒有源科技发展有限公司 | Solar heat pump and winter and summer two-purpose air conditioner system using the same heat pump |
| CN201757540U (en) * | 2010-05-28 | 2011-03-09 | 浙江大学 | Multifunctional combined cooling and heating heat pump system |
-
2010
- 2010-05-28 CN CN2010101858717A patent/CN101832686B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487027A (en) * | 1982-04-05 | 1984-12-11 | Institute Of Gas Technology | Hyperabsorption space conditioning process and apparatus |
| WO1993005349A1 (en) * | 1991-09-09 | 1993-03-18 | Rocky Research | Dual-temperature heat pump apparatus and system |
| JP2005077037A (en) * | 2003-09-02 | 2005-03-24 | Rinnai Corp | Hybrid absorption heat pump system |
| CN100383474C (en) * | 2005-06-27 | 2008-04-23 | 北京北控恒有源科技发展有限公司 | Solar heat pump and winter and summer two-purpose air conditioner system using the same heat pump |
| CN1811303A (en) * | 2006-02-18 | 2006-08-02 | 李华玉 | Single-effect heat pump/double-effect cooling absorption set and combined heat, electricity and cold supply system |
| CN201757540U (en) * | 2010-05-28 | 2011-03-09 | 浙江大学 | Multifunctional combined cooling and heating heat pump system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120315A (en) * | 2016-11-28 | 2018-06-05 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
| CN108120315B (en) * | 2016-11-28 | 2019-06-11 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832686B (en) | 2011-09-07 |
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