CN2508167Y - Condensed heat recovering device for central conditioning system - Google Patents
Condensed heat recovering device for central conditioning system Download PDFInfo
- Publication number
- CN2508167Y CN2508167Y CN 01266100 CN01266100U CN2508167Y CN 2508167 Y CN2508167 Y CN 2508167Y CN 01266100 CN01266100 CN 01266100 CN 01266100 U CN01266100 U CN 01266100U CN 2508167 Y CN2508167 Y CN 2508167Y
- Authority
- CN
- China
- Prior art keywords
- inlet
- pipeline
- outlet
- magnetic valve
- links
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a central air conditioning condensation heat recovery device, and the utility model comprises a diving wall type heat exchanger which is provided with a cold medium flow passage and a hot medium flow passage. The inlet opening of the hot medium flow passage is connected with the cooling agent outlet opening of a compressor through a pipeline, and the outlet opening of the hot medium flow passage is connected with an expansion valve through the pipeline. The utility model is characterized in that the utility model also comprises a water storage tank with a water inlet opening, the inlet opening of the cold medium flow passage is provided with a water inlet pipeline which is used to be connected with a tapping pipe, the outlet opening of the cold medium flow passage is connected with the water inlet opening of the water storage tank. Through the diving wall type heat exchanger of the utility model, the condensation heat of the central air conditioning unit is prepared into the hot water to be stored in the water storage tank to be used.
Description
Technical field
The utility model relates to a kind of central air-conditioning condensing heat retracting device, refers to a kind of central air-conditioning condensing heat retracting device that can make the domestic hot-water especially.
Background technology
Summer, many buildings all used central air-conditioning, and central air-conditioning all can produce a large amount of heat at work.The air-conditioning that has is to utilize refrigerant tubing that cooling water is heated with water cooled condenser, and the heat in the hot water enters in the atmosphere by cooling tower again; The air-conditioning that has is to utilize wind that blower fan blows out that the heat of refrigerant tubing is directly entered atmosphere with air cooled condenser.Like this, the condensation heat of central air-conditioning refrigeration unit all enters in the atmosphere with the form of hot water or hot blast, has caused the thermal pollution to environment, has also caused the waste of heat simultaneously.On the other hand, providing of domestic hot-water needs power consumption, simultaneously atmosphere also had pollution.
Summary of the invention
The purpose of this utility model provides a kind of central air-conditioning condensing heat retracting device that utilizes central air-conditioning condensing heat to prepare the domestic hot-water.
For achieving the above object, the utility model is taked following design: a kind of central air-conditioning condensing heat retracting device, it comprises that one has the dividing wall type heat exchanger of cold media flow channel and heat medium flow channel, the inlet of described heat medium flow channel links to each other with the refrigerant outlet of compressor by pipeline, the outlet of described heat medium flow channel links to each other with expansion valve by pipeline, it is characterized in that: it comprises that also one has the storage tank of water inlet, the inlet of described cold media flow channel is provided with one and is used for the inlet channel that is connected with running water pipe, and the outlet of described cold media flow channel links to each other with the water inlet of described storage tank.
Described inlet channel is provided with a magnetic valve, described storage tank has a delivery port, the delivery port of described storage tank links to each other by the inlet of pipeline with a pump, described delivery side of pump links to each other with cooling tower by pipeline, pipeline between described pump and the cooling tower is provided with a magnetic valve, the outlet of described cooling tower links to each other by the inlet of pipeline with a magnetic valve, the outlet of described magnetic valve links to each other by the inlet of pipeline with described heat exchanger cold media flow channel, be provided with a water level signal device and a temperature sensor in the described storage tank, described storage tank delivery port also is provided with a branch pipe(tube) that links to each other with the inlet of described heat exchanger cold media flow channel, described branch pipe(tube) is provided with a pump, one controller, its signal that transmits by water level signal device and temperature sensor is controlled the switch of described magnetic valve and pump.
Described inlet channel is provided with a magnetic valve, described storage tank is provided with a delivery port, be connected by water return pipeline between the inlet of described delivery port and described heat exchanger cold media flow channel, described water return pipeline is provided with a circulating pump from described delivery port successively between the inlet of described heat exchanger cold media flow channel, one heater, a hot water user pipe and a circulating pump, pipeline between the inlet of the refrigerant outlet of described compressor and described exchanger heat medium runner is provided with a magnetic valve, the refrigerant outlet of described compressor also is connected with a subtube, described subtube is connected with an air-cooled condenser by a magnetic valve, the outlet of described air-cooled condenser links to each other with the inlet of described expansion valve by pipeline, be provided with a water level signal device and a temperature sensor in the described storage tank, other has the signal of a reception water level signal device and temperature sensor and controls the controller of the switch of described magnetic valve and pump.
Inlet from described heat exchanger cold media flow channel on the described inlet channel is provided with a pump and a magnetic valve successively, be provided with one and be used for the inlet channel that is connected with running water pipe, described storage tank has a delivery port, the delivery port of described storage tank links to each other with a magnetic valve by pipeline, the outlet of described magnetic valve links to each other with inlet channel between described magnetic valve and the pump by pipeline, pipeline between the inlet of the refrigerant outlet of described compressor and described exchanger heat medium runner is provided with a magnetic valve, the refrigerant outlet of described compressor also is connected with a subtube, one dividing wall type heat exchanger, the inlet of its heat medium flow channel links to each other with described subtube, also be provided with a magnetic valve on the described subtube, the outlet of described exchanger heat medium runner links to each other with the inlet of described expansion valve by pipeline, the outlet of described heat exchanger cold media flow channel links to each other with the inlet of described cooling tower by pipeline, the outlet of described cooling tower is connected with a circulating pump by pipeline, described outlet of circulating pump links to each other by the inlet of pipeline with described heat exchanger cold media flow channel, be provided with a water level signal device and a temperature sensor in the described storage tank, a controller that is used to receive the signal of described water level signal device and temperature sensor and controls described magnetic valve and pump.
Described storage tank is provided with a hot water outlet and a water return outlet, be connected by hot water pipeline between described hot water outlet and the water return outlet, described hot water pipeline is provided with a circulating pump, a heater and hot water user pipe from described hot water outlet successively between the described water return outlet.
Described dividing wall type heat exchanger is plate type heat exchanger or shell and tube exchanger.
The utility model has the advantages that: the utility model central air-conditioning condensing heat retracting device, because it comprises that one has the dividing wall type heat exchanger of cold media flow channel and heat medium flow channel, the inlet of heat medium flow channel links to each other with the refrigerant outlet of compressor by pipeline, the outlet of heat medium flow channel links to each other with expansion valve by pipeline, it comprises that also one has the storage tank of water inlet, the inlet of cold media flow channel is provided with one and is used for the inlet channel that is connected with running water pipe, and the outlet of cold media flow channel links to each other with the water inlet of storage tank.It is available in storage tank by the dividing wall type heat exchanger in the utility model the condensation heat of central air-conditioning refrigeration unit to be prepared into hot water storage.
Description of drawings
Fig. 1 is the utility model embodiment 1 schematic diagram
Fig. 2 is the utility model embodiment 2 schematic diagrames
Fig. 3 is the utility model embodiment 3 schematic diagrames
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As Fig. 1, Fig. 2, shown in Figure 3, a kind of central air-conditioning condensing heat retracting device, it comprises that one has the dividing wall type heat exchanger 3 of cold media flow channel 1 and heat medium flow channel 2, the inlet of heat medium flow channel 2 links to each other by the refrigerant outlet of pipeline with compressor 4, the outlet of heat medium flow channel 2 links to each other with expansion valve 5 by pipeline, it is characterized in that: it comprises that also one has the storage tank 7 of water inlet 6, the inlet of cold media flow channel 1 is provided with one and is used for the inlet channel 8 that is connected with running water pipe, and the outlet of cold media flow channel 1 links to each other with the water inlet 6 of storage tank 7.
As shown in Figure 1, inlet channel 8 is provided with a magnetic valve 9, storage tank 7 has a delivery port 10, the delivery port 10 of storage tank 7 links to each other by the inlet of pipeline with a pump 11, the outlet of pump 11 links to each other with cooling tower 12 by pipeline, pipeline between pump 11 and the cooling tower 12 is provided with a magnetic valve 13, the outlet 14 of cooling tower 12 links to each other by the inlet of pipeline with a magnetic valve 15, the outlet of magnetic valve 15 links to each other by the inlet of pipeline with heat exchanger 3 cold media flow channels 1, be provided with a water level signal device 16 and a temperature sensor 18 in the storage tank 7, storage tank 7 delivery ports 10 also are provided with a branch pipe(tube) 19 that links to each other with the inlet of heat exchanger 3 cold media flow channels 1, branch pipe(tube) 19 is provided with a pump 20, one controller 17 (known products), it controls magnetic valve 9 by the signal that water level signal device 16 and temperature sensor 18 transmit, 13,15 and the switch of pump 11.
During use, high-temperature gas is from passing through the heat medium flow channel 2 and the expansion valve 5 of heat exchanger 3 after the outlet of the compressor 4 of central air-conditioning is come out successively, running water then enters the cold media flow channel 1 of heat exchanger 3 by inlet channel 8 and the magnetic valve 9 on it, running water enters in the storage tank 7 for use through becoming hot water behind the heat exchanger 3.When the water temperature in the storage tank 7 is lower than setting value and water level also is lower than when setting value, make pump 11,20 and magnetic valve 13,15 be in closed condition by controller 17, and make magnetic valve 9 be in opening; And be lower than setting value and water level reaches when setting value when water temperature in the storage tank, and then make pump 20 be in open mode by controller 7, magnetic valve 9,13,15, pump 11 are in closed condition; And when water temperature and water level in the storage tank 7 all reached setting value, 17 of controllers made magnetic valve 9 and pump 20 be in closed condition, make pump 11, magnetic valve 13,15 be in opening.
As shown in Figure 2, inlet channel 8 is provided with a magnetic valve 9, storage tank 7 is provided with a delivery port 10, be connected by water return pipeline 21 between the inlet of delivery port 10 and heat exchanger 3 cold media flow channels 1, water return pipeline 21 is provided with a circulating pump 22 successively between the inlet to heat exchanger 3 cold media flow channels 1 from delivery port 10, one heater 23, a hot water user pipe 24 and a circulating pump 25, pipeline between the inlet of the refrigerant outlet of compressor 4 and heat exchanger 3 heat medium flow channels 2 is provided with a magnetic valve 26, the refrigerant outlet of compressor 4 also is connected with a subtube 27, subtube 27 is connected with an air-cooled condenser 29 by a magnetic valve 28, the outlet of air-cooled condenser 29 links to each other by the inlet of pipeline with expansion valve 5, be provided with a water level signal device 16 and a temperature sensor 18 in the storage tank 7, other has one to receive the signal of water level signal device 16 and temperature sensor 18 and control magnetic valve 9,26,28 and pump 22, the controller 17 of 25 switch.
During use, high-temperature gas is from passing through the heat medium flow channel 2 and the expansion valve 5 of heat exchanger 3 after the outlet of the compressor 4 of central air-conditioning is come out successively, running water then enters the cold media flow channel 1 of heat exchanger 3 by inlet channel 8 and the magnetic valve 9 on it, running water enters in the storage tank 7 for use through becoming hot water behind the heat exchanger 3.When the water temperature in the storage tank 7 is lower than setting value and water level also is lower than when setting value, make pump 25 and magnetic valve 28 be in closed condition by controller 17, and the state that magnetic valve 9,26, pump 22 are in out; And be lower than setting value and water level reaches when setting value when water temperature in the storage tank 7, and then make pump 25,22 be in open mode by controller 7, make magnetic valve 9,28 be in closed condition; And when water temperature and water level in the storage tank 7 all reached setting value, 17 of controllers made pump 25, magnetic valve 9,26 be in closed condition, make pump 22, magnetic valve 28 be in opening.
As shown in Figure 3, inlet from heat exchanger 3 cold media flow channels 1 on the inlet channel 8 is provided with a pump 30 and a magnetic valve 9 successively, storage tank 7 has a delivery port 10, the delivery port 10 of storage tank 7 links to each other with a magnetic valve 31 by pipeline, the outlet of magnetic valve 31 links to each other with inlet channel between magnetic valve 9 and the pump 30 by pipeline, pipeline between the inlet of the refrigerant outlet of compressor 4 and heat exchanger 3 heat medium flow channels is provided with a magnetic valve 32, the refrigerant outlet of compressor 4 also is connected with a subtube 33, one dividing wall type heat exchanger 34, the inlet of its heat medium flow channel 35 links to each other with subtube 33, also be provided with a magnetic valve 36 on the subtube 33, the outlet of heat exchanger 34 heat medium flow channels 35 links to each other by the inlet of pipeline with expansion valve 5, the outlet of heat exchanger 34 cold media flow channels 37 links to each other by the inlet of pipeline with cooling tower 12, the outlet of cooling tower 12 is connected with a circulating pump 38 by pipeline, the outlet of circulating pump 38 links to each other by the inlet of pipeline with heat exchanger 34 cold media flow channels 37, being provided with a water level signal device 16 and a temperature sensor 18, in the storage tank 7 is used to receive the signal of water level signal device 16 and temperature sensor 18 and controls magnetic valve 9,31,32,36 and pump 36, the controller 17 of 38 switches.
During use, high-temperature gas is from passing through the heat medium flow channel 2 and the expansion valve 5 of heat exchanger 3 after the outlet of the compressor 4 of central air-conditioning is come out successively, the cold media flow channel 1 that running water then enters heat exchanger 3 by inlet channel 8 and the magnetic valve 9 on it and pump 36, running water enters in the storage tank 7 for use through becoming hot water behind the heat exchanger 3.When the water temperature in the storage tank 7 is lower than setting value and water level also is lower than when setting value, make pump 38 and magnetic valve 31 be in closed condition by controller 17, and make magnetic valve 9, pump 30 be in opening; And be lower than setting value and water level reaches when setting value when water temperature in the storage tank 7, and then make pump 30, magnetic valve 31,32 be in open mode by controller 7, make magnetic valve 9,36 pumps 38 be in closed condition; And when water temperature and water level in the storage tank 7 all reached setting value, 17 of controllers made magnetic valve 9,31,32 and pump 30 be in closed condition, make pump 38, magnetic valve 36 be in opening.
As Fig. 1, shown in Figure 3, also can establish a hot water outlet 39 and a water return outlet 40 on the storage tank 7, be connected by hot water pipeline 41 between hot water outlet 39 and the water return outlet 40, to being provided with a circulating pump 42, a heater 43 and hot water user pipe 44 between the water return outlet 40 successively, 44 of hot water users can directly use hot water to hot water pipeline 41 from hot water delivery port 39.
Dividing wall type heat exchanger 3 and 34 in the various embodiments described above can be plate type heat exchanger or shell and tube exchanger.
Claims (7)
1, a kind of central air-conditioning condensing heat retracting device, it comprises that one has the dividing wall type heat exchanger of cold media flow channel and heat medium flow channel, the inlet of described heat medium flow channel links to each other with the refrigerant outlet of compressor by pipeline, the outlet of described heat medium flow channel links to each other with expansion valve by pipeline, it is characterized in that: it comprises that also one has the storage tank of water inlet, the inlet of described cold media flow channel is provided with one and is used for the inlet channel that is connected with running water pipe, and the outlet of described cold media flow channel links to each other with the water inlet of described storage tank.
2, central air-conditioning condensing heat retracting device according to claim 1, it is characterized in that: described inlet channel is provided with a magnetic valve, described storage tank has a delivery port, the delivery port of described storage tank links to each other by the inlet of pipeline with a pump, described delivery side of pump links to each other with cooling tower by pipeline, pipeline between described pump and the cooling tower is provided with a magnetic valve, the outlet of described cooling tower links to each other by the inlet of pipeline with a magnetic valve, the outlet of described magnetic valve links to each other by the inlet of pipeline with described heat exchanger cold media flow channel, be provided with a water level signal device and a temperature sensor in the described storage tank, described storage tank delivery port also is provided with a branch pipe(tube) that links to each other with the inlet of described heat exchanger cold media flow channel, described branch pipe(tube) is provided with a pump, one controller, its signal that transmits by water level signal device and temperature sensor is controlled the switch of described magnetic valve and pump.
3, central air-conditioning condensing heat retracting device according to claim 1, it is characterized in that: described inlet channel is provided with a magnetic valve, described storage tank is provided with a delivery port, be connected by water return pipeline between the inlet of described delivery port and described heat exchanger cold media flow channel, described water return pipeline is provided with a circulating pump from described delivery port successively between the inlet of described heat exchanger cold media flow channel, one heater, a hot water user pipe and a circulating pump, pipeline between the inlet of the refrigerant outlet of described compressor and described exchanger heat medium runner is provided with a magnetic valve, the refrigerant outlet of described compressor also is connected with a subtube, described subtube is connected with an air-cooled condenser by a magnetic valve, the outlet of described air-cooled condenser links to each other with the inlet of described expansion valve by pipeline, be provided with a water level signal device and a temperature sensor in the described storage tank, other has the signal of a reception water level signal device and temperature sensor and controls the controller of the switch of described magnetic valve and pump.
4, central air-conditioning condensing heat retracting device according to claim 1, it is characterized in that: the inlet from described heat exchanger cold media flow channel on the described inlet channel is provided with a pump and a magnetic valve successively, be provided with one and be used for the inlet channel that is connected with running water pipe, described storage tank has a delivery port, the delivery port of described storage tank links to each other with a magnetic valve by pipeline, the outlet of described magnetic valve links to each other with inlet channel between described magnetic valve and the pump by pipeline, pipeline between the inlet of the refrigerant outlet of described compressor and described exchanger heat medium runner is provided with a magnetic valve, the refrigerant outlet of described compressor also is connected with a subtube, one dividing wall type heat exchanger, the inlet of its heat medium flow channel links to each other with described subtube, also be provided with a magnetic valve on the described subtube, the outlet of described exchanger heat medium runner links to each other with the inlet of described expansion valve by pipeline, the outlet of described heat exchanger cold media flow channel links to each other with the inlet of described cooling tower by pipeline, the outlet of described cooling tower is connected with a circulating pump by pipeline, described outlet of circulating pump links to each other by the inlet of pipeline with described heat exchanger cold media flow channel, be provided with a water level signal device and a temperature sensor in the described storage tank, a controller that is used to receive the signal of described water level signal device and temperature sensor and controls described magnetic valve and pump.
5, according to claim 1 or 2 or 4 described central air-conditioning condensing heat retracting devices, it is characterized in that: described storage tank is provided with a hot water outlet and a water return outlet, be connected by hot water pipeline between described hot water outlet and the water return outlet, described hot water pipeline is provided with a circulating pump, a heater and hot water user pipe from described hot water outlet successively between the described water return outlet.
6, according to claim 1 or 2 or 3 or 4 described central air-conditioning condensing heat retracting devices, it is characterized in that: described dividing wall type heat exchanger is plate type heat exchanger or shell and tube exchanger.
7, central air-conditioning condensing heat retracting device according to claim 5 is characterized in that: described dividing wall type heat exchanger is plate type heat exchanger or shell and tube exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266100 CN2508167Y (en) | 2001-11-19 | 2001-11-19 | Condensed heat recovering device for central conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266100 CN2508167Y (en) | 2001-11-19 | 2001-11-19 | Condensed heat recovering device for central conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508167Y true CN2508167Y (en) | 2002-08-28 |
Family
ID=33672830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266100 Expired - Fee Related CN2508167Y (en) | 2001-11-19 | 2001-11-19 | Condensed heat recovering device for central conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508167Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432563C (en) * | 2005-09-22 | 2008-11-12 | 上海卡诺节能环境工程有限公司 | Combined central air conditioning condensation heat recovery utilizating system and method |
| CN101311639B (en) * | 2007-05-25 | 2010-05-19 | 南京理工大学 | Integral units of air conditioner condensation heat reclamation and free cold supply of cooling column and applied system |
| CN102094792A (en) * | 2010-12-30 | 2011-06-15 | 许名文 | Heat energy recycling and comprehensive utilizing system of air compressor |
| CN103423930A (en) * | 2012-05-23 | 2013-12-04 | 杭州三花研究院有限公司 | Ice-making machine |
| CN104501405A (en) * | 2014-11-26 | 2015-04-08 | 江门市凯立信电气科技有限公司 | Water circulation system of heat pump water heater |
| CN105953428A (en) * | 2016-07-20 | 2016-09-21 | 吴有伟 | Circulation system for utilizing heat energy of refrigerating device to water heater |
| CN107356137A (en) * | 2017-06-15 | 2017-11-17 | 庞淮升 | Air conditioner afterheat thermal-arrest water system |
-
2001
- 2001-11-19 CN CN 01266100 patent/CN2508167Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432563C (en) * | 2005-09-22 | 2008-11-12 | 上海卡诺节能环境工程有限公司 | Combined central air conditioning condensation heat recovery utilizating system and method |
| CN101311639B (en) * | 2007-05-25 | 2010-05-19 | 南京理工大学 | Integral units of air conditioner condensation heat reclamation and free cold supply of cooling column and applied system |
| CN102094792A (en) * | 2010-12-30 | 2011-06-15 | 许名文 | Heat energy recycling and comprehensive utilizing system of air compressor |
| CN103423930A (en) * | 2012-05-23 | 2013-12-04 | 杭州三花研究院有限公司 | Ice-making machine |
| CN103423930B (en) * | 2012-05-23 | 2017-03-15 | 杭州三花研究院有限公司 | A kind of ice machine |
| CN104501405A (en) * | 2014-11-26 | 2015-04-08 | 江门市凯立信电气科技有限公司 | Water circulation system of heat pump water heater |
| CN105953428A (en) * | 2016-07-20 | 2016-09-21 | 吴有伟 | Circulation system for utilizing heat energy of refrigerating device to water heater |
| CN107356137A (en) * | 2017-06-15 | 2017-11-17 | 庞淮升 | Air conditioner afterheat thermal-arrest water system |
| CN107356137B (en) * | 2017-06-15 | 2019-04-02 | 庞淮升 | Air conditioner afterheat collection hot water system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2937909Y (en) | Air-conditioning water heater | |
| CN101221007B (en) | Air source heat pump hot water units | |
| CN101749812A (en) | Multifunctional Air Conditioning System | |
| CN201363859Y (en) | Air conditioning unit | |
| CN2879030Y (en) | New type air source hot pump water heater | |
| CN103307674A (en) | Heat pump air-conditioning system combining air source heat pump with small temperature difference heat exchange tail end | |
| CN109341138B (en) | Combined air conditioning system of machine room and hot water system and control method thereof | |
| CN202057111U (en) | Multifunctional air source hot water and air-conditioning heat pump unit | |
| CN202660658U (en) | Heat pump and fresh air integrated air conditioning system | |
| CN2508167Y (en) | Condensed heat recovering device for central conditioning system | |
| CN1485588B (en) | Dual-purpose multiple operating mode self-defrosting type heat pump air-conditioner and automatic defrosting process thereof | |
| CN202853065U (en) | Air conditioner defrosting circulation system | |
| CN1888637A (en) | Hot pump type air conditioner set with water heater | |
| CN201892345U (en) | Multi-functional air-source hot water and heat pump unit adopting electronic expansion valves | |
| CN102003834B (en) | Multifunctional air source hot water and air conditioning heat pump unit | |
| CN214746562U (en) | Air conditioning unit and air conditioner | |
| CN201138023Y (en) | High-efficient multifunctional air conditioner device | |
| CN201003885Y (en) | Air source thermal pump water heater unit | |
| CN209655524U (en) | Air-conditioning heat recovery system | |
| CN210663351U (en) | Direct-heating air energy water heater | |
| CN101986063A (en) | Multifunctional air-source hot-water and heat-pump unit with electronic expansion valves | |
| CN202002266U (en) | Hot water preparing device for heat pump air conditioner | |
| CN2540587Y (en) | Air-cooled double-temp. split air conditioner with water heating device | |
| CN202630320U (en) | Novel air-conditioning heat recovery unit | |
| CN205747571U (en) | A kind of straight swollen air-conditioning device of carbon dioxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |