CN1740696A - Combined central air conditioning condensation heat recovery utilizating system and method - Google Patents
Combined central air conditioning condensation heat recovery utilizating system and method Download PDFInfo
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- CN1740696A CN1740696A CNA2005100298721A CN200510029872A CN1740696A CN 1740696 A CN1740696 A CN 1740696A CN A2005100298721 A CNA2005100298721 A CN A2005100298721A CN 200510029872 A CN200510029872 A CN 200510029872A CN 1740696 A CN1740696 A CN 1740696A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005494 condensation Effects 0.000 title claims description 16
- 238000009833 condensation Methods 0.000 title claims description 16
- 238000011084 recovery Methods 0.000 title description 8
- 238000004378 air conditioning Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000005338 heat storage Methods 0.000 claims abstract description 21
- 239000008399 tap water Substances 0.000 claims abstract description 19
- 235000020679 tap water Nutrition 0.000 claims abstract description 19
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000004064 recycling Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 24
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material 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
- 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]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
-
- 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]
- Y02B30/56—Heat recovery units
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- Other Air-Conditioning Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
This invention belongs to the field of refrigerating air conditioner and waste heat recycling technology. In details, it is a kind of combined central air conditioner refrigerating and heat recycling system and method. It is composed of preheating board type heat exchanger, heat storage tank, water-water heating pump machine and controlling valve, all of which connected though pipes and connected with pipes of original living water tank, heat supply board type heat exchanger and cold water machine condenser. The system can take out 37DEG C water flowed from cold water machine condenser, partially send to preheating board type heat exchanger to heat tap water. The preheated water send to heat storage tank in one way and boiler house as replenishing water in another way. The water from heat storage tank is sent to heating pump condenser of water-water heating pump machine to further cycle heating to 50DEG C and used as domestic heat water.
Description
Technical Field
The invention belongs to the technical field of refrigeration air conditioners and waste heat recovery. In particular to a system and a method for recycling waste heat of a central air conditioner.
Background
The starred hotels and the hotels require the combined central air conditioner for cooling and 24-hour hot water supply in summer, the cold sources and the hot sources are respectively arranged under most conditions, the cold energy is provided by a water chilling unit, and the hot water is provided by steam or a hot water boiler. When the water chilling unit operates in a refrigeration working condition, a condenser of the unit discharges a large amount of condensation heat (which is discharged from the cooling tower through cooling water) to the atmospheric environment. Usually, the condensation heat can reach 1.15-1.3 times of the refrigerating capacity, a large amount of condensation heat is directly discharged into the atmosphere, a large amount of energy is wasted, and the serious thermal pollution aggravates the urban 'heat island effect'. On the other hand, the domestic hot water prepared by using the oil-fired boiler and the gas-fired boiler consumes a large amount of energy sources such as oil-fired or gas-fired boiler, and the emitted SO2, dust, NOX, CO2 and the like pollute the atmospheric environment, thereby causing double waste of energy sources and double pollution of the environment.
Disclosure of Invention
The invention aims to provide a condensation heat recovery system and a method of a combined air conditioner, which use the condensation heat discharged by an air conditioner condenser for heating domestic water or hot water in the production process of manufacturing industry so as to reduce the consumption of fuel oil and fuel gas and reduce the pollution of smoke discharge to the urban environment and the urban heat pollution and the 'heat island effect' caused by heat discharge of a cooling tower.
The combined air conditioner condensation heat recycling system provided by the invention is structurally shown in figure 1. The system is composed of a preheating plate type heat exchanger 1, a heat storage water tank 2, a water-water heat pump unit 3, a pipeline pump 8, a pipeline pump 9, a water supply pump 10, a circulating pump 11, a heat supplementing water pump 15 and a plurality of valves which are connected through pipelines, and is connected with an original tap water tank 14, a cold water unit condenser 23, a living water tank 12 and a heat supply plate type heat exchanger 13 of a hotel. Wherein, the preheating plate type heat exchanger 1 is provided with a pipeline 32 connected with the tap water tank 14; a pipeline 33 is connected with a cooling water main pipe 17 of the cooling tower, and an electromagnetic valve 27 and a pipeline pump 8 are arranged in the middle of the pipeline 33; a pipeline 34 is directly connected with a cooling water main pipe 17 of the cooling tower; a pipeline 35 is connected with the heat storage water tank 2, and a heat supplementing water pump 15 and an electromagnetic valve 22 are arranged in the middle of the pipeline; a pipeline 36 is connected with the hotel boiler, and a stop valve 26 is arranged in the middle. The water-water heat pump unit 3 is formed by connecting a heat pump condenser 4, a heat pump compressor 5, a heat pump evaporator 6 and a heat pump throttle valve 7 through pipelines in sequence. The heat storage water tank 2 is provided with a pipeline 37 connected with a heat pump condenser 4 in a heat pump unit, and a circulating pump 11 and a stop valve 25 are arranged in the middle of the pipeline; a pipeline 38 is connected with the domestic water tank 12, and a water supply pump 10, a stop valve 24 and an electromagnetic valve 21 are sequentially arranged in the middle of the pipeline; another pipeline 39 is connected with the domestic water tank 12, the solenoid valve 20 and the solenoid valve 17 are arranged in the middle of the pipeline, and a branch pipeline 40 is connected with the heat pump condenser 4. A heat pump evaporator 6 of the heat pump unit is provided with a pipeline 41 connected with a cooling water main pipe 17, and a pipeline pump 9 and a stop valve 28 are arranged in the middle of the pipeline; a pipe 42 is connected to the pipe 34, and a shut-off valve 29 is provided in the middle of the pipe.
In the above system of the present invention, the lower end of the pipeline 41 is connected with the heat supply plate heat exchanger 13 through the pipeline 43, and the pipeline 43 is provided with the stop valve 30; the lower end of the pipe 42 is connected to the hot plate heat exchanger 13 via a pipe 44, and a stop valve 31 is provided in the pipe 44.
The invention can recover the condensation heat of the hotel combined central air conditioner by using the recovery system, and the specific method comprises the following steps:
cooling water with the temperature of 37 ℃ flowing out from the condenser 23 is sent to the cooling tower main pipe 17, part of the cooling water is pumped by a pipeline pump 8 and sent to the preheating plate heat exchanger 1 through a pipeline 33, and tap water sent from a tap water tank 14 is heated and preheated to about 35 ℃ (such as 33-36 ℃); the cooling water is cooled from 37 ℃ to about 32 ℃ (such as 30-34 ℃) and then returns to the main pipe 17 of the cooling tower through a pipeline 34. Tap water is heated to about 35 ℃ (for example 33-36 ℃) by the preheating plate heat exchanger 1, then is sent to the heat storage water tank 2 by the pipeline 35, and is sent to a boiler room by the pipeline 36 to be used as boiler make-up water, so that the temperature of the make-up water is improved, and the energy consumption is saved. Water at about 35 ℃ (33-36 ℃) in the hot water storage tank 2 is sent to the heat pump condenser 4 through the circulating pump 11 to be further circularly heated to about 50 ℃ (48-55 ℃) and then enters the domestic water tank 12 through the pipeline 38 to be used as domestic hot water. The heat source of the heat pump evaporator 6 is supplied from the cooling tower main pipe 17 through the pipe pump 9 by using the residual heat of hot water having a temperature of about 37 ℃ flowing out from the chiller condenser 23 through the pipe 41, and is returned to the cooling tower main pipe 17 through the pipe 42 after being used. The water outlet of the heat pump condenser 4 is divided into two paths, when the water temperature is higher than 50 ℃ and the water level of the domestic water tank 12 is lower than the high water level, the domestic hot water is directly supplied to the domestic water tank 12 through the pipeline 40, otherwise, the domestic hot water is supplied to the heat storage water tank 2 for circulating heating.
The central air conditioning system with large power consumption can be stopped in spring and autumn, cold water with the temperature of 7-10 ℃ is prepared by the heat pump evaporator 6 and enters the heat supply plate heat exchanger 13 through the pipeline 44, the cold energy is output by the heat supply plate heat exchanger 13 and is supplied to the cold energy required by hotel restaurants, KTV rooms and partial guest rooms, and the heat pump condenser 6 is used as a conventional condenser at the moment. Because the power consumption of the heat pump unit is far less than that of the water chilling unit of the central air-conditioning system, the invention can also save the power consumption in spring and autumn.
Drawings
FIG. 1 is a schematic view of a heat recovery system of the present invention.
Reference numbers in the figures: 1 is a preheating plate type heat exchanger, 2 is a heat storage water tank, 3 is a water-water heat pump unit, 4 is a heat pump condenser, 5 is a heat pump compressor, 6 is a heat pump evaporator, 7 is a heat pump throttle valve, 8 is a pipeline pump, 9 is a pipeline pump, 10 is a water supply pump, 11 is a circulating pump, 12 is an original living water tank of a hotel, 13 is an original heat supply plate heat exchanger of the hotel, 14 is a tap water tank, 15 is a heat supplementing water pump, 16 is a cooling water main pipe returning from a cooling tower, 17 is a cooling water main pipe removing the cooling tower, 18 is a thermometer, 19, 20, 21, 22, 27 are electromagnetic valves, 23 is a water cooling unit condenser, 24, 25, 26, 28, 29, 30, 31 are stop valves, and 32-44 are connecting pipes.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the accompanying drawings.
As shown in the figure, the heat recovery system of the present invention comprises a preheating plate type heat exchanger 1, a heat storage water tank 2, a water-water heat pump 3 (composed of a heat pump compressor 5, a heat pump condenser 4, a heat pump throttle valve 7 and a heat pump evaporator 6), a pipeline pump 8, a pipeline pump 9, a water supply pump 10, a circulating pump 11, a hotel primary water tank 12, a hotel primary heating plate exchanger 13, a tap water tank 14, a preheating water pump 15, a cooling water main pipe 16 returning from a cooling tower, a cooling water main pipe 17 going to the cooling tower, a thermometer 18, electromagnetic valves 19, 20, 21, 22, 27, a condenser 23 of a water chilling unit, stop valves 24, 25, 26, 28, 30, 31 and connecting pipes 32-44, and the connection relationship is as described above.
When the water level of the heat storage water tank 2 is below a high water level, the electromagnetic valves 22 and 27 are opened, the pipeline pump 8 and the water replenishing pump 15 are started, part of the cooling water at 37 ℃ is pumped out from the cooling water main pipe 17 going to the cooling tower and is sent into the preheating plate type heat exchanger 1, the tap water with lower temperature sent from the water replenishing pump 15 is heated by using the waste heat of the part of the cooling water, the temperature of the tap water flowing out of the preheating plate type heat exchanger 1 is raised to about 35 ℃, then the tap water flows out in two paths, one path is sent to the heat storage water tank 2, and the other path is used as boiler. The temperature of the cooling water which is discharged from the preheating plate heat exchanger 1 is reduced from 37 ℃ to 30-32 ℃, and then the cooling water flows back to a cooling water main pipe 17 of the cooling tower. When the water level of the heat storage water tank 2 reaches a high water level, the pipeline pump 8 and the water replenishing pump 15 are stopped, the electromagnetic valves 22 and 27 are closed, and water replenishing is stopped.
The water-water heat pump unit consists of a heat pump compressor 5, a heat pump condenser 4, a heat pump throttle valve 7 and a heat pump evaporator 6. The circulating pump 11 feeds the heated tap water in the hot water storage tank 2 to the heat pump condenser 4 to further heat the tap water. When the temperature of the outlet water of the heat pump condenser 4 is lower than 50 ℃ or the water level of the domestic water tank is higher than the high water level, the electromagnetic valve 19 is closed, the electromagnetic valve 20 is opened, the outlet water of the heat pump condenser 4 returns to the heat storage tank 2, and flows into the heat pump condenser 4 through the circulating pump 11 to be circularly heated. When the temperature of the outlet water of the heat pump condenser is more than or equal to 50 ℃ and the water level of the domestic water tank 12 is lower than the high water level, the electromagnetic valve 20 is closed, the electromagnetic valve 19 is opened, and the hot water directly flows into the domestic hot water tank 2 for use. The residual heat of the cooling water with the temperature of 37 ℃ flowing out from the condenser 23 of the water chilling unit is still used as a low-temperature heat source of the water-water heat pump. And a part of cooling water with the temperature of 37 ℃ is pumped out from a cooling water main pipe 17 of the cooling tower through a pipeline pump 9 to heat the refrigerant steam, so that the refrigerant steam absorbs heat and evaporates, and the temperature of the cooling water is reduced from 37 ℃ to about 30-32 ℃ and returns to the cooling water main pipe 17 of the cooling tower. When the domestic hot water tank reaches a low water level, the water supply pump 10 is started, the stop valve 24 is opened, and the heat storage water tank 2 supplies water to the domestic water tank 12.
In spring and autumn, the heat pump evaporator 6 is used for generating chilled water with the temperature of 7-10 ℃, the chilled water is sent to an original heat supply plate heat exchanger 13 of a hotel, the original heat supply pipeline is used for outputting cold energy, and the temperature of the chilled water is increased to 12-15 ℃ and then flows back to the heat pump evaporator 6. The heat pump condenser is used as a conventional condenser and is cooled with cooling water at about 30 ℃.
In summary, the condensation heat recovery system and method of the central air conditioner firstly recover the condensation heat by the preheating plate heat exchanger, so that the tap water is preheated to about 35 ℃. Then the condensation heat is used as the low temperature heat source of the water-water heat pump to further heat the hot water to about 50 ℃ for domestic hot water. The waste heat recovered by the preheating plate heat exchanger can be recovered without compensation, although the waste heat recovery of the water-water heat pump pays a certain electric power to the heat pump compressor, the energy efficiency ratio of the water-water heat pump is very high under the current working condition and can reach about 4.0-4.2, so the total economy of the technology is good, and particularly on occasions requiring large amount of domestic hot water. In addition, the technology is particularly suitable for a centrifugal water chilling unit with large cooling capacity and low exhaust temperature of a central air conditioner, and the improvement work only relates to a cooling water system, so that the refrigerant side of the water chilling unit is not affected.
Claims (4)
1. A combined central air conditioner condensation heat recycling system is characterized by comprising a preheating plate type heat exchanger (1), a heat storage water tank (2), a water-water heat pump unit (3), a pipeline pump (8), a pipeline pump (9), a water supply pump (10), a circulating pump (11), a heat supplementing water pump (15) and a plurality of valves which are connected through pipelines and connected with an original tap water tank (14) of a hotel, a condenser (23) of a water chilling unit, a domestic water tank (12) and a heat supply plate type heat exchanger (13); wherein,
the preheating plate type heat exchanger (1) is provided with a pipeline (32) which is connected with a tap water tank (14); a pipeline (33) is connected with a cooling water main pipe (17) of the cooling tower, and an electromagnetic valve (27) and a pipeline pump (8) are arranged in the middle of the pipeline (33); a pipeline (34) is directly connected with a cooling water main pipe (17) going to the cooling tower; a pipeline (35) is connected with the heat storage water tank (2), and a heat supplementing water pump (15) and an electromagnetic valve (22) are arranged in the middle of the pipeline; a pipeline (36) is connected with a hotel boiler, and a stop valve (22) is arranged in the middle;
the water-water heat pump unit (3) is formed by connecting a heat pump condenser (4), a heat pump compressor (5), a heat pump evaporator (6) and a heat pump throttle valve (7) in sequence through pipelines;
the heat storage water tank (2) is provided with a pipeline (37) connected with a heat pump condenser (4) in the heat pump unit, and a circulating pump (11) and a stop valve (25) are arranged in the middle of the pipeline; a pipeline (38) is connected with the domestic water tank (12), and a water supply pump (10), a stop valve (24) and an electromagnetic valve (21) are sequentially arranged in the middle of the pipeline; the other pipeline (39) is connected with the domestic water tank (12), an electromagnetic valve (20) and an electromagnetic valve (17) are arranged in the middle of the pipeline, and a pipeline (40) is connected with the heat pump condenser (4);
a heat pump evaporator (6) of the heat pump unit is provided with a pipeline (41) connected with a cooling water main pipe (17), and a pipeline pump (9) and a stop valve (28) are arranged in the middle of the pipeline; a pipeline (42) is connected with the pipeline (34), and a stop valve (29) is arranged in the middle of the pipeline.
2. The condensation heat recycling system according to claim 1, wherein the lower end of the pipe (41) is connected to the heat supply panel heat exchanger (13) through a pipe (43), a stop valve (30) is provided in the pipe (43), the lower end of the pipe (42) is connected to the heat supply panel heat exchanger (13) through a pipe (44), and a stop valve (31) is provided in the pipe (44).
3. A combined central air conditioner condensation heat recycling method is characterized in that cooling water flowing out of a condenser (23) and having a temperature of 37 ℃ is sent to a cooling tower main pipe (17), a pipeline pump (8) is used for pumping part of the cooling water to be sent to a preheating plate heat exchanger (1) through a pipeline (33), and tap water sent from a tap water tank (14) is heated to be preheated to about 35 ℃; and the cooling water is cooled to about 32 ℃ from 37 ℃ and then returns to the main pipe (17) of the cooling tower through a pipeline (34). Tap water is heated to about 35 ℃ by the preheating plate heat exchanger (1), then is sent into the heat storage water tank (2) by the pipeline (35), and is sent to a boiler room by the pipeline (36) to be used as boiler make-up water; water with the temperature of 35 ℃ in the heat storage water tank (2) is sent to a heat pump condenser (4) through a circulating pump (11) to be further circularly heated to about 50 ℃, and then enters a domestic water tank (12) through a pipeline (38) to be used as domestic hot water; the heat source of the heat pump evaporator (6) is supplied from the cooling tower main pipe (17) through the pipeline pump (9) by the pipeline 41 by using the residual heat of hot water flowing out from the condenser (23) of the water chilling unit and having a temperature of about 37 ℃, and is returned to the cooling water main pipe (17) through the pipeline 42 after being used. The water outlet of the heat pump condenser (4) is divided into two paths, when the water temperature is higher than 50 ℃ and the water level of the domestic water tank (12) is lower than the high water level, domestic hot water is directly supplied to the domestic water tank (12) through a pipeline (40), otherwise, water is supplied to the heat storage water tank (2) for circulating heating.
4. The condensation heat recycling method according to claim 3, characterized in that the heat pump evaporator (6) produces cold water of 7-10 ℃, the cold water enters the heat supply plate heat exchanger (13) through the pipeline (44), and the cold energy is output through the heat supply plate heat exchanger (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100298721A CN100432563C (en) | 2005-09-22 | 2005-09-22 | Combined central air conditioning condensation heat recovery utilizating system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100298721A CN100432563C (en) | 2005-09-22 | 2005-09-22 | Combined central air conditioning condensation heat recovery utilizating system and method |
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| Publication Number | Publication Date |
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| CN1740696A true CN1740696A (en) | 2006-03-01 |
| CN100432563C CN100432563C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100298721A Expired - Fee Related CN100432563C (en) | 2005-09-22 | 2005-09-22 | Combined central air conditioning condensation heat recovery utilizating system and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949558A (en) * | 2010-09-08 | 2011-01-19 | 中国科学院青岛生物能源与过程研究所 | Life hot water heat pump system using waste heat of circulating cooling water |
| CN102168849A (en) * | 2011-03-07 | 2011-08-31 | 肖鹏 | System effectively recycling low-grade condensing heat for preheating supplemented water of boilers |
| CN102207306A (en) * | 2011-03-07 | 2011-10-05 | 李瑞杰 | Energy-saving operating mode for recovering heat of central air-conditioner and supplying domestic hot water |
| CN101165430B (en) * | 2006-10-17 | 2011-10-26 | 珠海慧生能源技术发展有限公司 | Residual-heat reclamation type cold-hot water energy-saving machine set |
| CN101523119B (en) * | 2006-06-01 | 2012-12-19 | 埃克弗洛普公司 | System and method for providing cooling air to electronic device |
| CN103335367A (en) * | 2013-06-18 | 2013-10-02 | 湖南凌天科技有限公司 | Central air conditioner water source heat pump water circulating cooling system |
| CN105698208A (en) * | 2016-03-16 | 2016-06-22 | 山东福宽生物工程有限公司 | Recycling device and process for hot gas of distribution room of thermal power plant |
| CN107366951A (en) * | 2017-08-18 | 2017-11-21 | 南京长江都市建筑设计股份有限公司 | A kind of air conditioner cold water unit reclaiming system for condensation heat |
| CN109764511A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method of energy resource system |
| CN110454850A (en) * | 2019-08-06 | 2019-11-15 | 湖南同惠环境设备有限公司 | A kind of resource integrated heat pump unit of water source flue gas |
| CN110966827A (en) * | 2019-12-31 | 2020-04-07 | 宁波杭州湾新区祥源动力供应有限公司 | Water cooling system |
| CN112097233A (en) * | 2020-10-10 | 2020-12-18 | 江苏迈能高科技有限公司 | Cold and hot water unit capable of providing ecological medical sterile water |
| CN113405306A (en) * | 2021-07-19 | 2021-09-17 | 珠海格力电器股份有限公司 | Cold station and anti-freezing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI92867C (en) * | 1991-11-22 | 1997-07-08 | Suomen Puhallintehdas Oy | Air conditioning equipment for rooms |
| CN2508167Y (en) * | 2001-11-19 | 2002-08-28 | 过杰 | Condensed heat recovering device for central conditioning system |
-
2005
- 2005-09-22 CN CNB2005100298721A patent/CN100432563C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101523119B (en) * | 2006-06-01 | 2012-12-19 | 埃克弗洛普公司 | System and method for providing cooling air to electronic device |
| CN101165430B (en) * | 2006-10-17 | 2011-10-26 | 珠海慧生能源技术发展有限公司 | Residual-heat reclamation type cold-hot water energy-saving machine set |
| CN101949558A (en) * | 2010-09-08 | 2011-01-19 | 中国科学院青岛生物能源与过程研究所 | Life hot water heat pump system using waste heat of circulating cooling water |
| CN102168849A (en) * | 2011-03-07 | 2011-08-31 | 肖鹏 | System effectively recycling low-grade condensing heat for preheating supplemented water of boilers |
| CN102207306A (en) * | 2011-03-07 | 2011-10-05 | 李瑞杰 | Energy-saving operating mode for recovering heat of central air-conditioner and supplying domestic hot water |
| CN102168849B (en) * | 2011-03-07 | 2013-03-06 | 肖鹏 | System effectively recycling low-grade condensing heat for preheating supplemented water of boilers |
| CN103335367A (en) * | 2013-06-18 | 2013-10-02 | 湖南凌天科技有限公司 | Central air conditioner water source heat pump water circulating cooling system |
| CN105698208B (en) * | 2016-03-16 | 2018-05-18 | 山东福宽生物工程有限公司 | A kind of thermal power plant's switchgear house hot gas retracting device and its recovery process |
| CN105698208A (en) * | 2016-03-16 | 2016-06-22 | 山东福宽生物工程有限公司 | Recycling device and process for hot gas of distribution room of thermal power plant |
| CN107366951A (en) * | 2017-08-18 | 2017-11-21 | 南京长江都市建筑设计股份有限公司 | A kind of air conditioner cold water unit reclaiming system for condensation heat |
| CN109764511A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method of energy resource system |
| CN109764511B (en) * | 2019-01-09 | 2021-08-24 | 重庆海尔空调器有限公司 | Control method of energy system |
| CN110454850A (en) * | 2019-08-06 | 2019-11-15 | 湖南同惠环境设备有限公司 | A kind of resource integrated heat pump unit of water source flue gas |
| CN110966827A (en) * | 2019-12-31 | 2020-04-07 | 宁波杭州湾新区祥源动力供应有限公司 | Water cooling system |
| CN112097233A (en) * | 2020-10-10 | 2020-12-18 | 江苏迈能高科技有限公司 | Cold and hot water unit capable of providing ecological medical sterile water |
| CN113405306A (en) * | 2021-07-19 | 2021-09-17 | 珠海格力电器股份有限公司 | Cold station and anti-freezing method thereof |
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| CN100432563C (en) | 2008-11-12 |
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