CN104154695A - Water chilling unit - Google Patents
Water chilling unit Download PDFInfo
- Publication number
- CN104154695A CN104154695A CN201410397525.3A CN201410397525A CN104154695A CN 104154695 A CN104154695 A CN 104154695A CN 201410397525 A CN201410397525 A CN 201410397525A CN 104154695 A CN104154695 A CN 104154695A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- pipeline
- water chilling
- chilling units
- handpiece water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000005057 refrigeration Methods 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 33
- 210000000234 capsid Anatomy 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 20
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a water chilling unit. The water chilling unit comprises a hollow shell, at least one draught fan arranged on the upper portion in the shell, an air-cooled refrigerating system and a compressor refrigerating system, wherein the air-cooled refrigerating system comprises a V-shaped shell and a tubular heat exchanger arranged in the V-shaped shell, a channel for air circulation is formed in the V-shaped shell, and the tubular heat exchanger is provided with an inlet for receiving liquid; according to the compressor refrigerating system, a circulating refrigeration system is composed of a compressor system, a condenser, a liquid storage device, a drying filter and a plate heat exchanger, the plate heat exchanger is divided into a first fluid channel and a second fluid channel through a partition plate arranged in the plate heat exchanger, an inlet and an outlet of the first fluid channel are connected with the drying filter and the compressor system through pipelines respectively, an inlet of the second fluid channel is communicated with an outlet of the tubular heat exchanger through a pipeline, and a heat exchanger tube of the condenser is parallel to the tubular heat exchanger and contained in the V-shaped shell. The water chilling unit has the dual refrigeration effect.
Description
Technical field
The present invention relates to a kind of refrigeration system, particularly a kind of for the two cooling handpiece Water Chilling Units of chilled water is provided.
Background technology
At present, for computer floor and the annual Code in Hazardous Special Locations that needs refrigeration of this class of data center, how to make handpiece Water Chilling Units ensure whole year operation and more energy-conservation, the current main following two kinds of technological means that exist: wind-cooled cold-water unit and ethylene glycol are naturally cooling.To simply introduce these two kinds of technological means below.
Wind-cooled cold-water unit, wind-cooled cold-water unit utilizes the air cooling refrigeration agent under environment temperature, has saved cooling tower, by changing condensation fan rotating speed control condensing pressure, controls simple, easy to maintenance.But its operational efficiency under low ambient temperature is lower, and unit moves and will reduce its service life at low temperatures for a long time.
Ethylene glycol is naturally cooling, and ethylene glycol free cooling refrigeration utilization ethylene glycol, as refrigerating medium, increases a set of ethylene glycol coil pipe on the basis of former wind-cooled cold-water unit.In the time that outdoor temperature is lower, with the naturally cooling glycol water of outdoor low temperature and directly send into the indoor heat exchange of carrying out; In the time that outdoor temperature is higher, the circulation of operation compressor cooling.Weak point: need special a set of bulky ethylene glycol heat exchange coil that increases, and this cover coil pipe was on the shelf in the most of the time except outdoor temperature lower (being generally winter) in 1 year, and almost there is no energy saving for warm southern area.
Based on the above, the invention provides a kind of for the two cooling freezing unit of chilled water is provided, when outdoor temperature lower than rack in when fluid temperature out, liquid enters air cooling refrigeration system, when the fluid temperature flowing out after air cooling refrigeration system meets in cabinet system for the requiring of fluid temperature, liquid directly enters in the rack circulatory system as chilled water; But liquid enters the fluid temperature flowing out after air cooling refrigeration system while not meeting in cabinet system the requiring of fluid temperature, liquid need through compressor refrigeration system carry out cooling after, be re-used as chilled water and enter the rack circulatory system.When outdoor temperature higher than rack in when fluid temperature out, liquid directly enters compressor refrigeration system and carries out coolingly, cooled liquid directly enters in the rack circulatory system as chilled water.In the pipe heat exchanger of the air cooling refrigeration system that this case provides and compressor refrigeration system, the heat exchanger tube of condenser is contained in same device, has saved space.
Summary of the invention
The invention provides a kind of handpiece Water Chilling Units, this handpiece Water Chilling Units is made up of air cooling refrigeration system and compressor refrigeration system two parts, in the time that ambient temperature is lower, only starting air cooling refrigeration system can be cooled to liquid and meet the requirement of the rack circulatory system to fluid temperature, do not need to start compressor refrigeration system, save expending of the energy, reduced cost input.And in air cooling refrigeration system in the heat exchanger tube of pipe heat exchanger and compressor refrigeration system the heat exchanger tube of condenser be contained in same device, saved space.
The invention provides a kind of handpiece Water Chilling Units, comprising:
Empty capsid and be arranged at least one blower fan of described housing internal upper part;
Air cooling refrigeration system, comprises V-type housing and is placed in the tubing heat exchanger in V-type housing, described V-type housing is provided with the passage of circulation of air, and described tubing heat exchanger has the entrance that receives liquid;
Compressor refrigeration system, by compressor assembly, condenser, reservoir, the cycle refrigeration system of device for drying and filtering and plate type heat exchanger composition, described plate type heat exchanger is divided into first fluid passage and second fluid passage by the dividing plate of establishing in described plate type heat exchanger, the entrance and exit of described first fluid passage is connected with described compressor assembly with described device for drying and filtering respectively by pipeline, the entrance of described second fluid passage connects by pipeline and the outlet of described tubing heat exchanger, the heat exchanger tube of described condenser is parallel with described tubing heat exchanger and be contained in V-type housing.
Preferably, described handpiece Water Chilling Units, wherein, the outlet of described second fluid passage is connected with cabinet system, enters the intrasystem machine of cabinet system cooling machine cabinet through the liquid of handpiece Water Chilling Units.
Preferably, described handpiece Water Chilling Units, wherein, the pipeline at the entrance place of described tubing heat exchanger is provided with the first electromagnetic water valve, be used for regulating and controlling the liquid tubing heat exchanger of whether flowing through, in the time that ambient temperature is lower, open the first electromagnetic water valve, the liquid heat exchanger of running affairs of flowing through, starts air cooling refrigeration system cools liquid; In the time that ambient temperature is higher, the fluid temperature flowing out from cabinet system during lower than ambient temperature, is closed the first electromagnetic water valve, and the cold preparation that liquid directly enters in heat-exchangers of the plate type and compressor refrigeration system carries out heat exchange.
Preferably, described handpiece Water Chilling Units, wherein, on described the first electromagnetic water valve place pipeline, extend a bye-pass, described bye-pass is provided with the second electromagnetic water valve, the pipeline at the outlet place of described bye-pass and described tubing heat exchanger pools main pipe rail, and described main pipe rail is connected with the entrance of the described second fluid passage in described heat-exchangers of the plate type.
Preferably, described handpiece Water Chilling Units, wherein, described tubing heat exchanger is made up of with the first pipeline and the second pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, described the first pipeline and described the second pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe.
Preferably, described handpiece Water Chilling Units, wherein, described the first pipeline is connected with the pipeline at described the first electromagnetic water valve place, and described the second pipeline is the outlet of described tubing heat exchanger.
Preferably, described handpiece Water Chilling Units, wherein, the heat exchanger tube of described condenser is made up of with the 3rd pipeline and the 4th pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, and the opposite direction of U-shaped pipe in the direction of described U-shaped pipe and described tubing heat exchanger, described the 3rd pipeline and described the 4th pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe.
Preferably, described handpiece Water Chilling Units, wherein, described the 3rd pipeline is connected with described compressor, and described the 4th pipeline is connected with the entrance of described first fluid passage.
Preferably, described handpiece Water Chilling Units, wherein, the empty capsid inwall of described handpiece Water Chilling Units is provided with the first temperature sensor.
Preferably, described handpiece Water Chilling Units, wherein, the pipeline of described second fluid channel outlet is provided with the second temperature sensor.
Handpiece Water Chilling Units provided by the invention, its beneficial effect comprises: 1) this handpiece Water Chilling Units is made up of air cooling refrigeration system and compressor refrigeration system two parts, has dual refrigeration effect; 2) in the time that ambient temperature is lower, only start air cooling refrigeration system and liquid can be cooled to and meet the requirement of the rack circulatory system to fluid temperature, do not need to start compressor refrigeration system, save expending of the energy, reduce cost input; 3) in air cooling refrigeration system, in the heat exchanger tube of pipe heat exchanger and compressor refrigeration system, the heat exchanger tube of condenser is contained in same device, has saved space.
Brief description of the drawings
Fig. 1 is handpiece Water Chilling Units structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As shown in Figure 1, the invention provides a kind of handpiece Water Chilling Units, comprising:
Empty capsid, the inwall of described empty capsid is provided with the first temperature sensor;
And be arranged on two blower fans of described housing internal upper part, and being labeled as blower fan 1 and blower fan 2, blower fan 1 and blower fan 2 are fixed on the upper inwall of empty capsid side by side;
Air cooling refrigeration system, comprise V-type housing and be placed in the tubing heat exchanger in V-type housing, described V-type housing is provided with the passage of circulation of air, and described tubing heat exchanger has the entrance that receives liquid, and the pipeline at the entrance place of described tubing heat exchanger is provided with the first electromagnetic water valve;
Compressor refrigeration system, by compressor assembly, condenser, reservoir, the cycle refrigeration system of device for drying and filtering and plate type heat exchanger composition, described plate type heat exchanger is divided into first fluid passage and second fluid passage by the dividing plate of establishing in described plate type heat exchanger, the entrance and exit of described first fluid passage is connected with described compressor assembly with described device for drying and filtering respectively by pipeline, the entrance of described second fluid passage connects by pipeline and the outlet of described tubing heat exchanger, the outlet of described second fluid passage is connected with cabinet system, the pipeline of described second fluid channel outlet is provided with the second temperature sensor, the heat exchanger tube of described condenser is parallel with described tubing heat exchanger and be contained in V-type housing.
As shown in Figure 1, on the pipeline at the first electromagnetic water valve place, extend a bye-pass, described bye-pass is provided with the second electromagnetic water valve, the pipeline at the outlet place of described bye-pass and described tubing heat exchanger pools main pipe rail, and described main pipe rail is connected with the entrance of the described second fluid passage in described heat-exchangers of the plate type.
Described tubing heat exchanger is made up of with the first pipeline and the second pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, described the first pipeline and described the second pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe, described the first pipeline is connected with the pipeline at described the first electromagnetic water valve place, and described the second pipeline is the outlet of described tubing heat exchanger.
Heat exchanger tube in condenser is made up of with the 3rd pipeline and the 4th pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, and the opposite direction of U-shaped pipe in the direction of described U-shaped pipe and described tubing heat exchanger, described the 3rd pipeline and described the 4th pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe, described the 3rd pipeline is connected with described compressor, and described the 4th pipeline is connected with the entrance of described first fluid passage.
In this case, on the pipeline at the entrance place of described tubing heat exchanger, the first electromagnetic water valve is set and extended bye-pass is provided with the second electromagnetic water valve on the pipeline at described the first electromagnetic water valve place effect: the regulation and control liquid tubing heat exchanger of whether flowing through.When the first temperature sensor displays temperature is less than 15 DEG C, when the second temperature sensor displays temperature is less than 15 DEG C, open blower fan 1, close blower fan 2, open the first electromagnetic water valve, close the second electromagnetic water valve, only start air cooling refrigeration system liquid is implemented to cooling; When the first temperature sensor displays temperature is 15～20 DEG C, when the second 15～20 DEG C of temperature sensor displays temperatures, open blower fan 1 and blower fan 2, open the first electromagnetic water valve, close the second electromagnetic water valve, only start air cooling refrigeration system liquid is implemented to cooling; When the first temperature sensor displays temperature is 15～20 DEG C, when the second temperature sensor displays temperature is 20 DEG C～40 DEG C, open blower fan 1 and blower fan 2, open the first electromagnetic water valve, close the second electromagnetic water valve, the two Freezing System that start air cooling refrigeration system and compressor refrigeration system are implemented cooling to liquid; In the time of 20～40 DEG C of the first temperature sensor displays temperatures, open blower fan 1 and blower fan 2, open the first electromagnetic water valve, close the second electromagnetic water valve, the two Freezing System that start air cooling refrigeration system and compressor refrigeration system are implemented to lower the temperature to liquid; In the time that the first temperature sensor displays temperature is greater than 40 DEG C, open blower fan 1 and blower fan 2, close the first electromagnetic water valve, open the second electromagnetic water valve, only start compressor refrigeration system liquid is implemented to cooling.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (10)
1. a handpiece Water Chilling Units, is characterized in that, comprising:
Empty capsid and be arranged at least one blower fan of described housing internal upper part;
Air cooling refrigeration system, comprises V-type housing and is placed in the tubing heat exchanger in V-type housing, described V-type housing is provided with the passage of circulation of air, and described tubing heat exchanger has the entrance that receives liquid;
Compressor refrigeration system, by compressor assembly, condenser, reservoir, the cycle refrigeration system of device for drying and filtering and plate type heat exchanger composition, described plate type heat exchanger is divided into first fluid passage and second fluid passage by the dividing plate of establishing in described plate type heat exchanger, the entrance and exit of described first fluid passage is connected with described compressor assembly with described device for drying and filtering respectively by pipeline, the entrance of described second fluid passage connects by pipeline and the outlet of described tubing heat exchanger, the heat exchanger tube of described condenser is parallel with described tubing heat exchanger and be contained in V-type housing.
2. handpiece Water Chilling Units as claimed in claim 1, is characterized in that, the outlet of described second fluid passage is connected with cabinet system.
3. handpiece Water Chilling Units as claimed in claim 1, is characterized in that, the pipeline at the entrance place of described tubing heat exchanger is provided with the first electromagnetic water valve.
4. the handpiece Water Chilling Units as described in claim 1 or 3, it is characterized in that, on described the first electromagnetic water valve place pipeline, extend a bye-pass, described bye-pass is provided with the second electromagnetic water valve, the pipeline at the outlet place of described bye-pass and described tubing heat exchanger pools main pipe rail, and described main pipe rail is connected with the entrance of the described second fluid passage in described heat-exchangers of the plate type.
5. handpiece Water Chilling Units as claimed in claim 1, it is characterized in that, described tubing heat exchanger is made up of with the first pipeline and the second pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, described the first pipeline and described the second pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe.
6. the handpiece Water Chilling Units as described in claim 3～5, is characterized in that, described the first pipeline is connected with the pipeline at described the first electromagnetic water valve place, and described the second pipeline is the outlet of described tubing heat exchanger.
7. the handpiece Water Chilling Units as described in claim 1 or 6, it is characterized in that, the heat exchanger tube of described condenser is made up of with the 3rd pipeline and the 4th pipeline that are connected with described U-shaped arrival end and the port of export U-shaped pipe, at least two parallel storings in described V-type housing of described U-shaped pipe, and the opposite direction of U-shaped pipe in the direction of described U-shaped pipe and described tubing heat exchanger, described the 3rd pipeline and described the 4th pipeline are positioned at described V-type hull outside, and crossing with described U-shaped pipe.
8. the handpiece Water Chilling Units as described in claim 1 or 7, is characterized in that, described the 3rd pipeline is connected with described compressor, and described the 4th pipeline is connected with the entrance of described first fluid passage.
9. handpiece Water Chilling Units as claimed in claim 1, is characterized in that, the empty capsid inwall of described handpiece Water Chilling Units is provided with the first temperature sensor.
10. handpiece Water Chilling Units as claimed in claim 1, is characterized in that, the pipeline of described second fluid channel outlet is provided with the second temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397525.3A CN104154695A (en) | 2014-08-13 | 2014-08-13 | Water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397525.3A CN104154695A (en) | 2014-08-13 | 2014-08-13 | Water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154695A true CN104154695A (en) | 2014-11-19 |
Family
ID=51880262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410397525.3A Pending CN104154695A (en) | 2014-08-13 | 2014-08-13 | Water chilling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352080A (en) * | 2015-11-30 | 2016-02-24 | 苏州市朗吉科技有限公司 | Combined type double-cold-source refrigerating system |
| CN110701808A (en) * | 2019-10-29 | 2020-01-17 | 江苏金荣森制冷科技有限公司 | An air-cooled industrial refrigerator |
| CN110701807A (en) * | 2019-10-29 | 2020-01-17 | 江苏金荣森制冷科技有限公司 | Air-cooled energy-saving industrial refrigerator |
| CN110715464A (en) * | 2019-10-29 | 2020-01-21 | 江苏金荣森制冷科技有限公司 | Air-cooled energy-saving industrial refrigerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233863A2 (en) * | 2009-03-24 | 2010-09-29 | Johnson Controls Techonology Company | Free cooling refrigeration system |
| CN201666706U (en) * | 2009-12-04 | 2010-12-08 | 内蒙古伊利实业集团股份有限公司 | a refrigeration system |
| CN102226598A (en) * | 2011-06-02 | 2011-10-26 | 天津海天缘科技发展有限公司 | Air-cooled water chiller unit capable of switching natural cold source |
| CN102549361A (en) * | 2009-08-14 | 2012-07-04 | 江森自控科技公司 | Free cooling refrigeration system |
| CN204115337U (en) * | 2014-08-13 | 2015-01-21 | 苏州市朗吉科技有限公司 | A kind of handpiece Water Chilling Units |
-
2014
- 2014-08-13 CN CN201410397525.3A patent/CN104154695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233863A2 (en) * | 2009-03-24 | 2010-09-29 | Johnson Controls Techonology Company | Free cooling refrigeration system |
| CN102549361A (en) * | 2009-08-14 | 2012-07-04 | 江森自控科技公司 | Free cooling refrigeration system |
| CN201666706U (en) * | 2009-12-04 | 2010-12-08 | 内蒙古伊利实业集团股份有限公司 | a refrigeration system |
| CN102226598A (en) * | 2011-06-02 | 2011-10-26 | 天津海天缘科技发展有限公司 | Air-cooled water chiller unit capable of switching natural cold source |
| CN204115337U (en) * | 2014-08-13 | 2015-01-21 | 苏州市朗吉科技有限公司 | A kind of handpiece Water Chilling Units |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352080A (en) * | 2015-11-30 | 2016-02-24 | 苏州市朗吉科技有限公司 | Combined type double-cold-source refrigerating system |
| CN110701808A (en) * | 2019-10-29 | 2020-01-17 | 江苏金荣森制冷科技有限公司 | An air-cooled industrial refrigerator |
| CN110701807A (en) * | 2019-10-29 | 2020-01-17 | 江苏金荣森制冷科技有限公司 | Air-cooled energy-saving industrial refrigerator |
| CN110715464A (en) * | 2019-10-29 | 2020-01-21 | 江苏金荣森制冷科技有限公司 | Air-cooled energy-saving industrial refrigerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017243880B2 (en) | An air conditioning system | |
| CN103032980B (en) | A kind of handpiece Water Chilling Units | |
| CN107084460A (en) | One kind refrigeration drives natural cooling cooling by wind with fluorine pump | |
| CN103759448B (en) | The two cooling system of a kind of X-ray machine | |
| CN201503166U (en) | Refrigeration heat recovery unit capable of producing high-temperature hot water | |
| CN201892282U (en) | Pump-circulated energy-saving air conditioner | |
| CN103884068A (en) | Novel energy-saving air conditioner for computer room | |
| CN110939995A (en) | Air conditioning system | |
| CN104633988A (en) | Air-cooled cold and hot water air conditioning system and control method thereof | |
| CN205505256U (en) | Integrated natural cooling's modularization refrigeration station system | |
| CN104154695A (en) | Water chilling unit | |
| CN104896777A (en) | Water chilling unit | |
| CN102297481A (en) | Energy-saving air conditioning system | |
| CN203163566U (en) | Anti-condensation refrigerant circulation heat pipe system | |
| CN104133535A (en) | Liquid cooling heat-removal system of PC host group | |
| CN206514574U (en) | A kind of data center's refrigeration system | |
| CN202973663U (en) | Motor cooling system of centrifugal compressor unit and air conditioner system | |
| CN103032930B (en) | A kind of temperature control equipment | |
| CN214065269U (en) | Refrigerating and heating double-effect heat exchanger with natural cooling function | |
| CN204115337U (en) | A kind of handpiece Water Chilling Units | |
| CN212720054U (en) | Air conditioning system | |
| CN106322590A (en) | Heat pipe cooling system for machine room | |
| CN104359155B (en) | Converter valve and valve hall combine heat-exchange system | |
| CN203478671U (en) | Air conditioning equipment with double condensation systems | |
| CN203478742U (en) | Bidirectional throttling system of air-cooled heat pump unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |
|
| RJ01 | Rejection of invention patent application after publication |