CN104764114B - Cooling system and air conditioning system - Google Patents
Cooling system and air conditioning system Download PDFInfo
- Publication number
- CN104764114B CN104764114B CN201510124530.1A CN201510124530A CN104764114B CN 104764114 B CN104764114 B CN 104764114B CN 201510124530 A CN201510124530 A CN 201510124530A CN 104764114 B CN104764114 B CN 104764114B
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- China
- Prior art keywords
- cooling
- hydraulic pump
- cooling system
- heat exchanging
- storage device
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- 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.)
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 97
- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 90
- 239000003507 refrigerant Substances 0.000 claims abstract description 28
- 239000002826 coolant Substances 0.000 claims description 37
- 238000005057 refrigeration Methods 0.000 claims description 30
- 230000008676 import Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a cooling system and an air conditioning system. The cooling system comprises a heat exchange pipeline (1) and a cooling circulation pipeline (2) which are independent of each other, wherein a hydraulic pump (3) and a liquid storage device (4) are arranged on the cooling circulation pipeline (2), and the heat exchange pipeline (1) is partially arranged in the liquid storage device (4). According to the cooling system disclosed by the invention, the length and complexity of a pipeline connected to a refrigerating system can be reduced, and the problem of easy refrigerant leakage is effectively solved.
Description
Technical field
The present invention relates to air-conditioning technical fields, in particular to a kind of cooling system and air-conditioning system.
Background technology
The service life of the controller of refrigeration system and its operating temperature are closely related, if the heat that the controller course of work generates
Cannot distribute in time can influence its job stability and reliability.The cooling of the controller of refrigeration system is air-cooled with heat sink at present
Based on cooling, radiating efficiency is low, it is difficult to meet high heat flux density cooling requirements, therefore be caused not to the stable operation of controller
Good influence.
To solve the above problems, occurring a kind of direct carrying out controller cooling scheme using condensed liquid.But
Directly condensed liquid is used to cool down, increases the length of pipe and complexity of refrigeration system, be easy to happen coolant leakage.
Invention content
A kind of cooling system and air-conditioning system are provided in the embodiment of the present invention, the pipeline that can reduce access refrigeration system is long
Degree and complexity, effectively overcome the problems, such as to be easy to happen coolant leakage.
To achieve the above object, the embodiment of the present invention provides a kind of cooling system, including mutually independent heat exchanging pipe and
Cooling cycle pipeline, hydraulic pump and liquid storage device are provided on cooling cycle pipeline, and heat exchanging pipe part is arranged in liquid storage device.
Preferably, the inlet end and an outlet end of hydraulic pump is both provided with third solenoid valve.
Preferably, hydraulic pump is adjustable-flow hydraulic pump.
Preferably, being provided with flow control valve on cooling cycle pipeline.
Preferably, the first end of heat exchanging pipe is provided with the first solenoid valve, the second end of heat exchanging pipe is provided with second
Solenoid valve.
Preferably, heat exchanging pipe, which is located at the part in liquid storage device, forms coil pipe.
Preferably, the outlet end of hydraulic pump is connected to the top of liquid storage device, the input end of hydraulic pump is connected to liquid storage device
Lower part.
Preferably, being connected with coolant liquid filling line on liquid storage device, the 5th electromagnetism is provided on coolant liquid filling line
Valve.
According to another aspect of the present invention, air-conditioning system includes refrigeration system and cooling system, which is above-mentioned
Cooling system, the inlet and outlet of the heat exchanging pipe of cooling system is connected to refrigeration system.
Preferably, refrigeration system includes refrigerant pipeline and the compressor connected by refrigerant pipeline, oil eliminator, changes
To valve, outdoor heat exchanger, throttling set, indoor heat exchanger, controller and gas-liquid separator, the inlet and outlet of heat exchanging pipe connects
It is connected on the refrigerant pipeline between indoor heat exchanger and reversal valve, cooling cycle pipeline and the controller of cooling system are equipped with
With cooling controller, the 4th solenoid valve is provided on the refrigerant pipeline between the inlet and outlet of cooling system.
It applies the technical scheme of the present invention, cooling system includes mutual independent heat exchanging pipe and cooling cycle pipeline, cold
But hydraulic pump and liquid storage device are provided on circulation line, heat exchanging pipe part is arranged in liquid storage device.When by the cooling system with
When refrigeration system is used cooperatively, the refrigerant that can be introduced in refrigeration system by heat exchanging pipe carries out hot friendship with cooling cycle pipeline
It changes, it, can be by heat exchanging pipe in liquid storage device since the heat exchanging pipe and cooling cycle pipeline of cooling system are mutual indepedent
The interior coolant liquid in cooling cycle pipeline realizes heat exchange, then treats cooling-part by cooling cycle pipeline and is dropped
Temperature reduces the length that required heat exchanging pipe when cooling-part cools down directly is treated by heat exchanging pipe, drop
The length of pipe and complexity of low access refrigeration system, effectively overcome the pipeline of access refrigeration system it is long caused by be easy
The problem of coolant leakage occurs.
Description of the drawings
Fig. 1 is the fundamental diagram of the air-conditioning system of the embodiment of the present invention.
Reference sign：1, heat exchanging pipe；2, cooling cycle pipeline；3, hydraulic pump；4, liquid storage device；5, third electromagnetism
Valve；6, the first solenoid valve；7, second solenoid valve；8, coil pipe；9, refrigerant pipeline；10, compressor；11, oil eliminator；12, it commutates
Valve；13, outdoor heat exchanger；14, throttling set；15, indoor heat exchanger；16, controller；17, gas-liquid separator；18, the 4th electricity
Magnet valve；19, coolant liquid filling line；20, the 5th solenoid valve.
Specific implementation mode
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as the limit to the present invention
It is fixed.
Shown in Figure 1, according to an embodiment of the invention, cooling system includes mutual independent heat exchanging pipe 1 and cooling
Circulation line 2, hydraulic pump 3 and liquid storage device 4 are provided on cooling cycle pipeline 2, and 1 part of heat exchanging pipe is arranged in liquid storage device 4.
When the cooling system and refrigeration system to be used cooperatively, can be introduced in refrigeration system by heat exchanging pipe 1
Refrigerant carries out heat exchange with cooling cycle pipeline 2, since the heat exchanging pipe 1 and cooling cycle pipeline 2 of cooling system are mutual indepedent,
Therefore heat exchange can be realized with the coolant liquid in cooling cycle pipeline 2, then lead to by heat exchanging pipe 1 in liquid storage device 4
Supercooling circulation line 2 treats cooling-part and cools down, reduce directly by heat exchanging pipe 1 treat cooling-part carry out it is cold
The length of required heat exchanging pipe 1 when but cooling down, reduces the length of pipe and complexity of access refrigeration system, effectively overcomes
Access refrigeration system pipeline it is long caused by the problem of being easy to happen coolant leakage.
Further, since between heat exchanging pipe 1 and cooling cycle pipeline 2 independently of each other, can be followed in heat exchanging pipe 1 and cooling
It is passed through different liquid in endless tube road 2, lower-cost coolant liquid can be also passed through in cooling cycle pipeline 2, to drop
The cost of low entire cooling system.
The cooling system with others can also be easy that the equipment of liquid leakage occurs and is used cooperatively since pipeline is long,
The length of pipe to connect with equipment is reduced, and the cryogenic liquid of equipment itself can be utilized to realize the cooling drop for treating cooling-part
Temperature, to which resource distribution be better achieved.
The inlet end and an outlet end of hydraulic pump 3 is both provided with third solenoid valve 5, need to hydraulic pump 3 carry out replace or
When person repairs, the two third solenoid valves 5 that can control 3 both ends of hydraulic pump close the refrigerant pipeline 9 for being connected to hydraulic pump 3, from
And easily hydraulic pump 3 can be disassembled from cooling cycle pipeline 2.
In the present embodiment, hydraulic pump 3 is adjustable-flow hydraulic pump, and the flow-rate adjustment of hydraulic pump 3 is according to portion to be cooled
The temperature of part is controlled, and when part temperatures to be cooled are more than that ideal temperature is higher, are adjusted hydraulic pump 3, is made cooling cycle pipe
The flow of coolant liquid in road 2 increases, and to improve the heat dissipation that cooling cycle pipeline 2 treats cooling-part 16, quickly reduces and waits for
The temperature of cooling-part 16 makes component 16 to be cooled be operated in safe temperature range.When part temperatures to be cooled are slightly above managed
When thinking temperature, hydraulic pump 3 can be adjusted, the flow of the coolant liquid in cooling cycle pipeline 2 is made to reduce, reduces the defeated of hydraulic pump 3
Go out power, to reduce power consumption while ensureing part temperatures to be cooled, realizes energy saving.
Flow control valve can also be set on cooling cycle pipeline 2, and hydraulic pump 3 at this time can be the constant hydraulic pressure of flow
Pump can control flow when needing to adjust the coolant rate in cooling cycle pipeline 2 according to the temperature of component to be cooled
The state of regulating valve, to realize the adjustment to the coolant rate in cooling cycle pipeline 2.
The first end of heat exchanging pipe 1 is provided with the first solenoid valve 6, and the second end of heat exchanging pipe 1 is provided with second solenoid valve
7, the first end and second end of heat exchanging pipe 1 can be closed when the refrigerant in refrigeration system need not be introduced, avoid refrigeration system
Refrigerant in system is flowed into heat exchanging pipe 1, controls simpler convenience.
Preferably, heat exchanging pipe 1 is located at the formation of the part in liquid storage device 4 coil pipe 8, can be with the coolant liquid in liquid storage device 4
Contact area with bigger improves the heat exchange efficiency of heat exchanging pipe 1 and the coolant liquid in liquid storage device 4, enhances cooling system
Cooling performance.Coil pipe 8 herein or other structures, as long as heat exchanging pipe 1 and the cooling in liquid storage device 4 can be increased
The contact area of liquid improves the heat exchange efficiency of heat exchanging pipe 1 and the coolant liquid in liquid storage device 4.
The outlet end of hydraulic pump 3 is connected to the top of liquid storage device 4, and the input end of hydraulic pump 3 is connected under liquid storage device 4
Portion does not interfere with the cooling performance of cooling system, keeps away yet to ensure that the coolant liquid into cooling cycle pipeline 2 is liquid
Exempt from hydraulic pump 3 to suck excessive gas and generate cavitation.
Refrigeration system and the heat exchange of cooling system are realized by liquid storage device 4 and coil pipe 8.Hydraulic pump 3 extracts liquid storage device 4
In coolant liquid treat cooling-part and cool down, absorb the heat that component to be cooled distributes, become high-temperature gas, then
High-temperature gas enters from the top of liquid storage device 4 in liquid storage device 4, at this point, 8 kinds of flowings of coil pipe in liquid storage device 4 is low-temp low-pressure
Liquid refrigerants, the low-temp low-pressure liquid refrigerants in coil pipe 8 exchange heat with the high temperature coolant outside coil pipe 8, reduce cold in fluid reservoir
But liquid temperature, and it is made to become liquid phase from gas phase, and the temperature of liquid phase refrigerant is less than the temperature of component to be cooled so that fluid reservoir
Coolant liquid in 4 can continue to absorb the temperature of component to be cooled in recycling next time, treat cooling-part and carry out cooling heat.
Device 16 in order to control of component to be cooled in the present embodiment.
Preferably, it is connected with coolant liquid filling line 19 on liquid storage device 4, the 5th electricity is provided on coolant liquid filling line 19
Magnet valve 20.Coolant liquid filling line 19 can inject coolant liquid into liquid storage device 4 in real time, without stopping the operation of cooling system,
It can be caused cold to avoid due to cooling system long-term work so that remain enough coolant liquids in liquid storage device 4
But liquid is insufficient, can not treat cooling-part and carry out effectively cooling problem, and can ensure cooling system safe and stable operation.
5th solenoid valve 20 can control the break-make of coolant liquid filling line 19, and coolant liquid is avoided to occur from coolant liquid filling line 19
Leakage.
It is of course also possible to be not provided with coolant liquid filling line 19, but liquid injection port is opened up on liquid storage device 4, is needing to add
It, can be directly by coolant liquid out of liquid injection port injection liquid storage device 4 when adding coolant liquid.
In conjunction with shown in Figure 1, according to an embodiment of the invention, air-conditioning system includes refrigeration system and cooling system, should
Cooling system is above-mentioned cooling system, and the inlet and outlet of the heat exchanging pipe 1 of cooling system is connected to refrigeration system, and draws
The refrigerant for entering refrigeration system cools down to the coolant liquid in liquid storage device 4.
Refrigeration system includes refrigerant pipeline 9 and the compressor 10 connected by refrigerant pipeline 9, oil eliminator 11, commutation
Valve 12, outdoor heat exchanger 13, throttling set 14, indoor heat exchanger 15, controller 16 and gas-liquid separator 17, heat exchanging pipe 1
Inlet and outlet is connected on the refrigerant pipeline 9 between indoor heat exchanger 15 and reversal valve 12, the cooling cycle pipe of cooling system
Road 2 and controller 16 are equipped with cooling controller 16, are arranged on the refrigerant pipeline 9 between the inlet and outlet of cooling system
There is the 4th solenoid valve 18.
4th solenoid valve 18 can be closed when the refrigerant in needing refrigeration system enters in heat exchanging pipe 1 so that refrigeration
Refrigerant in system can be rapidly introduced into heat exchanging pipe 1, and be carried out by the coolant liquid in heat exchanging pipe 1 and liquid storage device 4
Heat exchange, to cool down to the coolant liquid in liquid storage device 4.When the refrigerant in not needing refrigeration system enters heat exchanging pipe 1,
The 4th solenoid valve 18 can be opened, the first solenoid valve 6 and second solenoid valve 7 is simultaneously closed off, ensures the normal operation of refrigeration system,
And reduce the power consumption of refrigeration system so that the simpler convenience of control of air-conditioning system, working efficiency higher.
Cooling cycle pipeline 2 and the part of the cooperation heat dissipation of controller 16 could be provided as coil arrangement, to increase cooling
Contact area between circulation line 2 and controller 16 improves heat exchange efficiency.Cooling cycle pipeline 2 can also directly with control
Radiator on device 16 connects, the radiator on cocurrent via controller 16, to exchange heat with controller 16.Cooling cycle pipe
Fit structure between road 2 and controller 16 may be that other are a variety of, as long as can pass through the refrigerant in cooling cycle pipeline 2
Flowing radiates to controller 16.
The temperature of controller 16 is relatively low need not cool down when, refrigeration system normal operation, the first solenoid valve 6 and at this time
Two solenoid valves 7 are closed, and the 4th solenoid valve 18 is opened, and hydraulic pump 3 does not start, and two third solenoid valves 5 at 3 both ends of hydraulic pump close
It closes.When the temperature of controller 16 is higher to be needed to cool down it, two third solenoid valves 5 at 3 both ends of hydraulic pump are opened, the
Four solenoid valves 18 are closed, and hydraulic pump 3 starts, and the first solenoid valve 6 and second solenoid valve 7 are opened, and hydraulic pump 3 extracts in liquid storage device 4
Low temperature liquid refrigerant, and be pumped at controller 16 and controller 16 cooled down.
Certainly, it is above the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, under the premise of not departing from general principles, several improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of cooling system, which is characterized in that described including mutual independent heat exchanging pipe (1) and cooling cycle pipeline (2)
Hydraulic pump (3) and liquid storage device (4) are provided on cooling cycle pipeline (2), heat exchanging pipe (1) part is arranged in the liquid storage
In device (4)；The inlet end and an outlet end of the hydraulic pump (3) is both provided with third solenoid valve (5)；
The hydraulic pump (3) is adjustable-flow hydraulic pump (3)；
Or the hydraulic pump (3) is the constant hydraulic pump of flow, and flow control valve is provided on the cooling cycle pipeline (2).
2. cooling system according to claim 1, which is characterized in that the first end of the heat exchanging pipe (1) is provided with
The second end of one solenoid valve (6), the heat exchanging pipe (1) is provided with second solenoid valve (7).
3. cooling system according to claim 1 or 2, which is characterized in that the heat exchanging pipe (1) is located at the liquid storage device
(4) part in forms coil pipe (8).
4. cooling system according to claim 1 or 2, which is characterized in that the outlet end of the hydraulic pump (3) is connected to institute
The top of liquid storage device (4) is stated, the input end of the hydraulic pump (3) is connected to the lower part of the liquid storage device (4).
5. cooling system according to claim 1 or 2, which is characterized in that be connected with coolant liquid note on the liquid storage device (4)
Enter pipeline (19), the 5th solenoid valve (20) is provided on the coolant liquid filling line (19).
6. a kind of air-conditioning system, including refrigeration system and cooling system, which is characterized in that the cooling system is claim 1
To the cooling system described in any one of 5, the inlet and outlet of the heat exchanging pipe (1) of the cooling system is connected to the system
Cooling system.
7. air-conditioning system according to claim 6, which is characterized in that the refrigeration system include refrigerant pipeline (9) and
Compressor (10), oil eliminator (11), reversal valve (12), outdoor heat exchanger (13), the section connected by the refrigerant pipeline (9)
Flow device (14), indoor heat exchanger (15), controller (16) and gas-liquid separator (17), the import of the heat exchanging pipe (1) with
Outlet is connected on the refrigerant pipeline (9) between the indoor heat exchanger (15) and the reversal valve (12), the cooling
The cooling cycle pipeline (2) of system is equipped with the controller (16) with the cooling controller (16), the cooling system
It is provided with the 4th solenoid valve (18) on the refrigerant pipeline (9) between the inlet and outlet of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124530.1A CN104764114B (en) | 2015-03-19 | 2015-03-19 | Cooling system and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124530.1A CN104764114B (en) | 2015-03-19 | 2015-03-19 | Cooling system and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104764114A CN104764114A (en) | 2015-07-08 |
| CN104764114B true CN104764114B (en) | 2018-11-09 |
Family
ID=53646111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510124530.1A Active CN104764114B (en) | 2015-03-19 | 2015-03-19 | Cooling system and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104764114B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952630B (en) * | 2016-06-21 | 2019-11-22 | 珠海格力电器股份有限公司 | Hydraulic pump and air conditioner |
| CN106196367B (en) * | 2016-07-15 | 2019-08-20 | 珠海格力电器股份有限公司 | Air conditioning system with gas-liquid separator for recooling and control method thereof |
| CN107655152B (en) * | 2017-09-20 | 2020-05-22 | 珠海格力电器股份有限公司 | Air conditioning system and operation control method thereof |
| CN108088103B (en) * | 2017-12-08 | 2020-03-06 | 珠海格力电器股份有限公司 | Air conditioning system and control method |
| WO2019167168A1 (en) * | 2018-02-28 | 2019-09-06 | 三菱電機株式会社 | Air conditioning device |
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| JP2010190553A (en) * | 2009-02-20 | 2010-09-02 | Hitachi Plant Technologies Ltd | Cooling system for electronic apparatus |
| CN102449407A (en) * | 2009-04-03 | 2012-05-09 | 易通-威廉姆斯集团有限公司 | Cooling unit |
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| CN103912939A (en) * | 2013-01-09 | 2014-07-09 | 艾默生网络能源有限公司 | Air conditioning system |
| CN204923263U (en) * | 2015-03-19 | 2015-12-30 | 珠海格力电器股份有限公司 | Cooling system and air conditioning system |
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2015
- 2015-03-19 CN CN201510124530.1A patent/CN104764114B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010190553A (en) * | 2009-02-20 | 2010-09-02 | Hitachi Plant Technologies Ltd | Cooling system for electronic apparatus |
| CN102449407A (en) * | 2009-04-03 | 2012-05-09 | 易通-威廉姆斯集团有限公司 | Cooling unit |
| CN102914087A (en) * | 2012-09-27 | 2013-02-06 | 浙江盾安机电科技有限公司 | Heat exchange system of refrigerating unit |
| CN103912939A (en) * | 2013-01-09 | 2014-07-09 | 艾默生网络能源有限公司 | Air conditioning system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104764114A (en) | 2015-07-08 |
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