CN102869241A - Double-drive heat pipe heat radiation cabinet - Google Patents
Double-drive heat pipe heat radiation cabinet Download PDFInfo
- Publication number
- CN102869241A CN102869241A CN2012103721629A CN201210372162A CN102869241A CN 102869241 A CN102869241 A CN 102869241A CN 2012103721629 A CN2012103721629 A CN 2012103721629A CN 201210372162 A CN201210372162 A CN 201210372162A CN 102869241 A CN102869241 A CN 102869241A
- Authority
- CN
- China
- Prior art keywords
- freon
- communicated
- heat
- pipe
- operated valve
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a double-drive heat pipe heat radiation cabinet comprising a cabinet body and a heat radiator connected with the cabinet body. The cabinet body comprises a body and a back box on the back of the body, a Freon input pipe and a Freon output pipe are communicated on the back box, and a heat radiation pipe communicating the Freon input pipe with the Freon output pipe are arranged in the back box. The heat radiator comprises a gas and liquid separator, a compressor, a heat exchanger, a liquid storage device and a drying filter which are sequentially communicated, the drying filter is communicated with a fluorine pump and a throttling mechanism, the gas and liquid separator is communicated with the Freon output pipe, and the fluorine pump and the throttling mechanism are communicated with the Freon input pipe simultaneously. An inlet pipe and an outlet pipe of the compressor are respectively provided with an electromagnetic valve and communicated with a bypass pipe which is provided with an electromagnetic valve. A pressure sensor is arranged in the heat exchanger.
Description
Technical field
The present invention relates to a kind of radiating cabinet, two heat pipe heat radiation racks that drive that especially a kind of electronic information machine room of good heat dissipation effect is used.
Background technology
Along with the development of the communications industry, the social informatization degree improves constantly, and no matter is that common carrier or government, enterprise etc. all need to build a large amount of electronic information machine rooms.Particularly along with the development of the technology such as Internet of Things, cloud computing, need a large amount of electronic information machine rooms as base support.In order to improve the utilance of electronic information machine room, in recent years, the Single Cabinet power of electronic information machine room continues to increase, and along with the increasing of Single Cabinet power, also so that technical bottleneck has appearred in traditional special air conditioning for device room.Be mainly manifested in: (1) adopts traditional special air conditioning for device room air supply mode because electronic information machine room Single Cabinet power is excessive, no matter is upper air-supply or lower air-supply, all is prone to machine room local overheating phenomenon.(2) because Single Cabinet power is excessive, certainly will needs to dispose more special air conditioning for device room, and no matter adopt single-sided arrangement or bilateral arrangement, all be difficult to install the air-conditioning of requirement.
Because these technical bottlenecks of traditional special air conditioning for device room are needed a kind of new technology of research and development badly, can adapt to the development trend of the high-power Single Cabinet of this electronic information machine room.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is the deficiency that exists in high-power Single Cabinet electronic information machine room for special air conditioning for device room in the prior art, and a kind of two heat pipe heat radiation rack that drives is provided.
In order to solve the problems of the technologies described above, the invention discloses a kind of two heat pipe heat radiation rack that drives, comprise cabinet and the heat abstractor that is connected cabinet; Described cabinet comprises the back of the body case of body and body rear side, is communicated with freon input pipe and freon efferent duct on the back of the body case, is provided with the radiating tube that is communicated with freon input pipe and freon efferent duct in the back of the body case;
Described heat abstractor comprises gas-liquid separator, compressor, the heat exchanger that is communicated with successively, and reservoir, and reservoir is communicated with respectively fluorine pump and throttle mechanism; Wherein gas-liquid separator is communicated with the freon efferent duct, and fluorine pump and throttle mechanism are communicated with the freon input pipe simultaneously;
Described compressor on pipeline, an electromagnetically operated valve is set respectively;
Described fluorine pump on pipeline, an electromagnetically operated valve is set respectively;
Described throttle mechanism on pipeline, an electromagnetically operated valve is set respectively;
Described compressor on pipeline, be communicated with a bypass duct, pipeline is provided with an electromagnetically operated valve;
Be provided with pressure sensor in the described heat exchanger.
Among the present invention, described heat exchanger is connected with fan.
Among the present invention, described heat exchanger is connected with water pump and cooling tower.
Among the present invention, described throttle mechanism is expansion valve.
Among the present invention, connect device for drying and filtering behind the described reservoir, reservoir is communicated with respectively fluorine pump and throttle mechanism by device for drying and filtering.
The two compressors that drive the heat pipe heat radiation rack of the present invention are connected with the fluorine parallel connection of pumps, connect respectively an electromagnetically operated valve at compressor into and out of pipeline, be provided with pressure sensor in heat exchanger, the condensing pressure that causes according to the variation of outdoor temperature changes compressor into and out of the open and close of the electromagnetically operated valve of pipeline and the work of compressor and fluorine pump.The liquid pipe that described two driving heat pipe heat radiation rack is connected with the back of the body case of heat pipe heat radiation rack has two arms, and an arm only has controlled valve, opens (closing during compressor operating work) during the work of fluorine pump operation; An arm throttle mechanism, the throttle mechanism two ends are provided with controlled valve, and valve is opened (closing during the work of fluorine pump operation) when compressor operating is worked.Electronic message unit carries the air-out direction of blower fan over against the back side, and liquid freon evaporates and absorb the heat that electronic message unit distributes in heat pipe rack back of the body case.
Pipe interior of the present invention is full of freon working medium.
Specific works operational mode of the present invention is as follows:
(1) when outdoor temperature is low, described fluorine pump operation work, compressor quits work.Freon working medium is under the effect of fluorine pump, enter heat exchanger, with the outdoor air heat exchange, because outside air temperature is lower, freon is condensed, heat drains into outdoor, and freon becomes gas-liquid mixture, and partially liq freon is stored in the reservoir, partially liq freon enters rack back of the body case, carry at electronic message unit under the hot blast effect of blower fan, freon evaporates in rack back of the body case, and absorbs the heat that distributes of electronic message unit.Gaseous fluorine Leon after the evaporation is back to again outdoor heat exchanger and outdoor air heat exchange, circular flow.
(2) when outdoor temperature is higher, switch by electromagnetically operated valve, compressor operating work, the fluorine pump quits work.Freon working medium is compressed to the gas of HTHP in compressor, then carry out condensation by heat exchanger, heat is discharged to outdoor, freon becomes gas-liquid mixture, and operative liquid freon is stored in the reservoir, and partially liq freon is after the throttle mechanism step-down, enter rack back of the body case, carry at electronic message unit under the effect of blower fan hot blast, freon evaporates in rack back of the body case, and absorbs the heat that electronic message unit distributes.Gas freon is back to compressor under the effect of compressor, circular flow.
(3) described electromagnetically operated valve switching mode changes according to the pressure in the freon condenser, and control is finished automatically.Also namely during by high step-down, can automatically switch to the fluorine pump operation by compressor in outdoor temperature.On the contrary, then switch to compressor operating by the fluorine pump.
Beneficial effect: the present invention has the following advantages: (1) patent of the present invention has solved the heat dissipation problem of high-power rack, has avoided the local overheating problem of using traditional special air conditioning for device room mode to bring.
(2) use of patent of the present invention in machine room can significantly improve the Single Cabinet installed power, improves the machine room utilance with this.
(3) when outdoor temperature is lower than the cabinet equipment temperature of outgoing air, also can utilize heat pipe that rack is carried out direct cooling, decrease machine room operation energy consumption.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 two a kind of execution modes that drive the heat pipe heat radiation rack of the present invention.
Fig. 2 two another kind of execution modes that drive the heat pipe heat radiation rack of the present invention.
Fig. 3 is cabinet body separation structure schematic diagram among the present invention.
Embodiment
The invention discloses a kind of two heat pipe heat radiation rack that drives, comprise cabinet and the heat abstractor that is connected cabinet; Described cabinet comprises the back of the body case of body and body rear side, is communicated with freon input pipe and freon efferent duct on the back of the body case, is provided with the radiating tube that is communicated with freon input pipe and freon efferent duct in the back of the body case; Described heat abstractor comprises gas-liquid separator, compressor, the heat exchanger that is communicated with successively, and reservoir and device for drying and filtering, device for drying and filtering are communicated with respectively fluorine pump and throttle mechanism; Wherein gas-liquid separator is communicated with the freon efferent duct, and fluorine pump and throttle mechanism are communicated with the freon input pipe simultaneously; Described compressor on pipeline, an electromagnetically operated valve is set respectively; Described fluorine pump on pipeline, an electromagnetically operated valve is set respectively; Described throttle mechanism on pipeline, an electromagnetically operated valve is set respectively; Described compressor on pipeline, be communicated with a bypass duct, pipeline is provided with an electromagnetically operated valve; Be provided with pressure sensor in the described heat exchanger.
Described heat exchanger is connected with fan.Perhaps described heat exchanger is connected with water pump and cooling tower.Described throttle mechanism is expansion valve.
As shown in Figure 1, compressor 1 and fluorine pump 2 are connected in the pipe-line system, but switch isolated operation compressor or fluorine pump by valve.Compressor 1 is imported and exported and is provided with electromagnetically operated valve 10a, electromagnetically operated valve 10b, wherein electromagnetically operated valve 10a control into, electromagnetically operated valve 10b controls out.The bypass line that compressor 1 is imported and exported is provided with electromagnetically operated valve 9, and bypass line is arranged on electromagnetically operated valve 10a, the electromagnetically operated valve 10b outside, not controlled by electromagnetically operated valve 10a, electromagnetically operated valve 10b.Fluorine pump 2 is imported and exported and is provided with electromagnetically operated valve 13a, electromagnetically operated valve 13b, and wherein electromagnetically operated valve 13a controls out, electromagnetically operated valve 13b control into.The bypass pipe that fluorine pump 2 is imported and exported is provided with electromagnetically operated valve 14a, electromagnetically operated valve 14b, be provided with throttle mechanism 15 between electromagnetically operated valve 14a and the electromagnetically operated valve 14b, throttle mechanism 15 adopts expansion valve, electromagnetically operated valve 14a and electromagnetically operated valve 14b and electromagnetically operated valve 13a and the separate control of electromagnetically operated valve 13b.In heat exchanger 3, be provided with the freon pressure sensor, control the open and close of electromagnetically operated valve 9, electromagnetically operated valve 10a, electromagnetically operated valve 10b, electromagnetically operated valve 13a, electromagnetically operated valve 13b and electromagnetically operated valve 14a, electromagnetically operated valve 14b by the variation of freon condensing pressure.
When outdoor temperature was low, condensing pressure was lower, and electromagnetically operated valve 10a, electromagnetically operated valve 10b close at this moment, and electromagnetically operated valve 9 is opened, and electromagnetically operated valve 13a and electromagnetically operated valve 13b open, and electromagnetically operated valve 14a and electromagnetically operated valve 14b close, and freon working medium is by the 2 operation periodic duties of fluorine pump.The gaseous fluorine Leon enters in the heat exchanger 3, with the outdoor air heat exchange, because outdoor temperature is lower, after being condensed, the gaseous fluorine Leon becomes gas-liquid mixture, operative liquid freon is stored in the reservoir 5, the device for drying and filtering 6 of moisture in the system after by reservoir 5 absorbs, operative liquid freon enters fluorine pump 2, enter in the heat pipe heat radiation rack 7 by freon input pipe 11, freon evaporates behind the absorbing heat in heat pipe heat radiation rack 7 and becomes gaseous state, is back to heat exchanger 3 by freon efferent duct 12 and carries out circular flow.
When outdoor temperature was higher, condensing pressure was higher, and electromagnetically operated valve 10a, electromagnetically operated valve 10b open at this moment, and electromagnetically operated valve 9 cuts out, and electromagnetically operated valve 13a and electromagnetically operated valve 13b close, and electromagnetically operated valve 14a and electromagnetically operated valve 14b open, and freon working medium is by the compressor operating periodic duty.The gaseous fluorine Leon is compressed to the gas of HTHP in compressor 1, enter in the heat exchanger 3, after being condensed, the gaseous fluorine Leon becomes gas-liquid mixture, operative liquid freon is stored in the reservoir 5, the device for drying and filtering of moisture in the system after by reservoir absorbs, after 15 step-downs of operative liquid freon process throttle mechanism, enter in the heat pipe heat radiation rack 7 by freon input pipe 11, freon evaporates behind the absorbing heat in the heat pipe heat radiation rack and becomes gaseous state, is back to compressor 1 circular flow by freon efferent duct 12.Evaporating temperature by control freon makes it be higher than dew point temperature, does not therefore produce condensate.How much can mating flexibly according to the heat dissipation capacity of electronic message unit and the amount of capacity of unit of the quantity of freon input pipe (liquid pipe) 11 and freon efferent duct (tracheae) 12 and series winding heat pipe heat radiation rack, series winding is that 3 heat pipe heat radiation racks only are signal among Fig. 1, it is more to contact, and also can contact still less.
Fig. 3 is the detailed structural map of heat pipe heat radiation rack 7.Freon pipeline (liquid pipe) 11 is connected tracheae with the freon pipeline) 12 be connected with the import and export of heat pipe heat radiation rack 7 respectively.Rack 7b and rack main entrance that heat pipe heat radiation rack 7 is deposited by heat pipe rack back of the body case 7a, electronic message unit form.Freon pipeline (liquid pipe) 11 and freon pipeline (tracheae) 12 namely are connected on the import and export of heat pipe rack back of the body case 7a.The liquid fluorine Leon enters the rack back of the body case that heat pipe is made, carrying fan at electronic message unit discharges under the effect of hot blast, freon evaporates and absorbs the heat that electronic message unit distributes in heat pipe rack back of the body case, freon is gone out by the outlet of heat pipe rack back of the body case after becoming gaseous state, and be back in compressor 1 or the fluorine pump 2, with this circular flow.
Present embodiment has following advantage based on the shortcoming of prior art: (1) can solve the heat dissipation problem of high-power rack, avoids the machine room local overheating.(2) under the whole year most of outside air temperature condition (also namely when outdoor temperature is lower than the cabinet equipment temperature of outgoing air), can utilize heat pipe that rack is carried out direct cooling, decrease machine room operation energy consumption.(3) break through the technical bottleneck of the traditional machine room refrigeration modes refrigerating capacity deficiency of high density rack, can significantly improve the installed capacity of rack and the utilance of communication building.
This two heat pipe heat radiation rack that drives can be got rid of the heat that electronic message unit distributes well, avoid electronic message unit overheated, also can improve Single Cabinet power and machine room utilance, when outdoor temperature is lower than the cabinet equipment temperature of outgoing air, can utilize heat pipe that rack is carried out direct cooling, decrease machine room operation energy consumption.
As shown in Figure 2, the difference of embodiment 2 and embodiment 1 is 3 heat exchangers, and heat exchanger is freon-air heat exchanger among the Fig. 1 among the embodiment 1, so fan 4.Therefore heat exchanger is freon-water-to-water heat exchanger among Fig. 2 of present embodiment, needs external water pipe to dispel the heat by cooling tower, or adopts the mode such as atomizing spray to dispel the heat.
The invention provides a kind of two heat pipe heat radiation rack that drives; method and the approach of this technical scheme of specific implementation are a lot; the above only is preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each part all available prior art realized.
Claims (5)
1. two heat pipe heat radiation rack that drives is characterized in that, comprises cabinet and the heat abstractor that is connected cabinet; Described cabinet comprises the back of the body case of body and body rear side, is communicated with freon input pipe and freon efferent duct on the back of the body case, is provided with the radiating tube that is communicated with freon input pipe and freon efferent duct in the back of the body case;
Described heat abstractor comprises gas-liquid separator, compressor, the heat exchanger that is communicated with successively, and reservoir, and reservoir is communicated with respectively fluorine pump and throttle mechanism; Wherein gas-liquid separator is communicated with the freon efferent duct, and fluorine pump and throttle mechanism are communicated with the freon input pipe simultaneously;
Described compressor on pipeline, an electromagnetically operated valve is set respectively;
Described fluorine pump on pipeline, an electromagnetically operated valve is set respectively;
Described throttle mechanism on pipeline, an electromagnetically operated valve is set respectively;
Described compressor on pipeline, be communicated with a bypass duct, pipeline is provided with an electromagnetically operated valve;
Be provided with pressure sensor in the described heat exchanger.
2. a kind of two heat pipe heat radiation racks that drive according to claim 1 is characterized in that described heat exchanger is connected with fan.
3. a kind of two heat pipe heat radiation racks that drive according to claim 1 is characterized in that described heat exchanger is connected with water pump and cooling tower.
4. according to claim 2 or 3 described a kind of two heat pipe heat radiation racks that drive, it is characterized in that described throttle mechanism is expansion valve.
5. a kind of two heat pipe heat radiation racks that drive according to claim 1 is characterized in that connect device for drying and filtering behind the described reservoir, reservoir is communicated with respectively fluorine pump and throttle mechanism by device for drying and filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103721629A CN102869241A (en) | 2012-09-29 | 2012-09-29 | Double-drive heat pipe heat radiation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103721629A CN102869241A (en) | 2012-09-29 | 2012-09-29 | Double-drive heat pipe heat radiation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102869241A true CN102869241A (en) | 2013-01-09 |
Family
ID=47447732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103721629A Pending CN102869241A (en) | 2012-09-29 | 2012-09-29 | Double-drive heat pipe heat radiation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102869241A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244670A (en) * | 2013-06-14 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Container type server combination |
| CN104422017A (en) * | 2013-08-19 | 2015-03-18 | 江苏香江科技股份有限公司 | Active heat pipe back plate cooling system |
| CN104540375A (en) * | 2015-01-14 | 2015-04-22 | 合肥天鹅制冷科技有限公司 | Onboard small electronic module cooling device with heat pipe function |
| CN104735959A (en) * | 2015-02-02 | 2015-06-24 | 深圳市英维克科技股份有限公司 | Cooling system of cabinet |
| CN105916361A (en) * | 2016-06-27 | 2016-08-31 | 江苏省邮电规划设计院有限责任公司 | Low-consumption spray-type heat pipe cooling complete equipment suitable for communication cabinet |
| CN106852071A (en) * | 2016-12-28 | 2017-06-13 | 曙光节能技术（北京）股份有限公司 | For the liquid cooling apparatus of blade server |
| CN107355930A (en) * | 2017-08-25 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of air-conditioning system and refrigerating method |
| CN110312401A (en) * | 2019-07-29 | 2019-10-08 | 潍坊护理职业学院 | One kind being directed to computer network security protective device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240514A1 (en) * | 2003-05-29 | 2004-12-02 | Bash Cullen Edwin | Air re-circulation index |
| CN102538101A (en) * | 2012-02-17 | 2012-07-04 | 合肥工业大学 | Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit |
| CN102573423A (en) * | 2012-01-16 | 2012-07-11 | 中能深思（北京）节能技术有限公司 | Air conditioning device for refrigerating server cabinet |
| CN202799552U (en) * | 2012-09-29 | 2013-03-13 | 江苏省邮电规划设计院有限责任公司 | Double-driving heat pipe heat dissipation cabinet |
-
2012
- 2012-09-29 CN CN2012103721629A patent/CN102869241A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240514A1 (en) * | 2003-05-29 | 2004-12-02 | Bash Cullen Edwin | Air re-circulation index |
| CN102573423A (en) * | 2012-01-16 | 2012-07-11 | 中能深思（北京）节能技术有限公司 | Air conditioning device for refrigerating server cabinet |
| CN102538101A (en) * | 2012-02-17 | 2012-07-04 | 合肥工业大学 | Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit |
| CN202799552U (en) * | 2012-09-29 | 2013-03-13 | 江苏省邮电规划设计院有限责任公司 | Double-driving heat pipe heat dissipation cabinet |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244670A (en) * | 2013-06-14 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Container type server combination |
| CN104422017A (en) * | 2013-08-19 | 2015-03-18 | 江苏香江科技股份有限公司 | Active heat pipe back plate cooling system |
| CN104540375A (en) * | 2015-01-14 | 2015-04-22 | 合肥天鹅制冷科技有限公司 | Onboard small electronic module cooling device with heat pipe function |
| CN104735959A (en) * | 2015-02-02 | 2015-06-24 | 深圳市英维克科技股份有限公司 | Cooling system of cabinet |
| CN104735959B (en) * | 2015-02-02 | 2017-07-18 | 深圳市英维克科技股份有限公司 | The cooling system of rack |
| CN105916361A (en) * | 2016-06-27 | 2016-08-31 | 江苏省邮电规划设计院有限责任公司 | Low-consumption spray-type heat pipe cooling complete equipment suitable for communication cabinet |
| CN105916361B (en) * | 2016-06-27 | 2018-09-21 | 中通服咨询设计研究院有限公司 | A kind of low consumption water spray type heat pipe heat radiation complete set of equipments suitable for communication cabinet |
| CN106852071A (en) * | 2016-12-28 | 2017-06-13 | 曙光节能技术（北京）股份有限公司 | For the liquid cooling apparatus of blade server |
| CN107355930A (en) * | 2017-08-25 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of air-conditioning system and refrigerating method |
| CN110312401A (en) * | 2019-07-29 | 2019-10-08 | 潍坊护理职业学院 | One kind being directed to computer network security protective device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202799552U (en) | Double-driving heat pipe heat dissipation cabinet | |
| CN102869241A (en) | Double-drive heat pipe heat radiation cabinet | |
| CN102359738B (en) | Heat pipe and refrigerating system combined energy transportation method | |
| CN102788392B (en) | A kind of heat pipe hot pump hybrid system | |
| CN102269466A (en) | Fresh air handling unit | |
| CN201522044U (en) | Dual-system air conditioning unit | |
| CN201733563U (en) | Air-conditioner system suitable for cabinets | |
| CN103900184A (en) | Water cooling medium three-pipe refrigerating and heating air-conditioning system | |
| CN202561932U (en) | Energy-saving and high-efficiency air conditioner of base station | |
| CN103307683A (en) | Hot pipe and air conditioner all-in-one machine | |
| CN209484761U (en) | A kind of heat pipe backboard air conditioning multi-couple unit | |
| CN103884068A (en) | Novel energy-saving air conditioner for computer room | |
| CN105916361B (en) | A kind of low consumption water spray type heat pipe heat radiation complete set of equipments suitable for communication cabinet | |
| CN104703452A (en) | Double-effect type server radiating device combining liquid cooling and compressor air cooling systems | |
| CN1721787A (en) | Energy accumulation type combustion gas and heat pump composite air-conditioning | |
| CN103939994A (en) | Energy-saving air conditioner of machine room | |
| CN201476397U (en) | Temperature-adjusting dehumidifier of water source heat pump | |
| CN203274348U (en) | Ultralow-temperature double-loop heat pump air-conditioning hot water machine | |
| CN203442994U (en) | Heat pipe air conditioner all-in-one machine | |
| CN201213130Y (en) | Heat pipe/wind cooling composite heat radiating system used for large power thyristor | |
| CN101592416B (en) | Cooling and heating system with cooling-heating source complementing loop | |
| CN203478742U (en) | Bidirectional throttling system of air-cooled heat pump unit | |
| CN102878617B (en) | Based on the ceiling air-conditioning system of container-type data center | |
| CN203518091U (en) | Efficient energy-saving water-cooled module set | |
| CN201074924Y (en) | Water cold air source heat pump air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130109 |