CN105658018B - A kind of two-phase cooling system based on R134a - Google Patents
A kind of two-phase cooling system based on R134a Download PDFInfo
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- CN105658018B CN105658018B CN201410412190.8A CN201410412190A CN105658018B CN 105658018 B CN105658018 B CN 105658018B CN 201410412190 A CN201410412190 A CN 201410412190A CN 105658018 B CN105658018 B CN 105658018B
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- condenser
- cabinet
- flange
- fluid reservoir
- knockout drum
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- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000008676 import Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008439 repair process Effects 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000007710 freezing Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 241000233855 Orchidaceae Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
A kind of two-phase cooling system based on R134a, including：Cabinet, inside cabinet circulating pump is arranged on lower floor's bottom plate, knockout drum and fluid reservoir, condenser is arranged in cabinet middle level, arrangement control panel on front side of cabinet, outlet(discharge) flange is installed on the left of cabinet, it imports and exports flange and includes suction flange and outlet(discharge) flange, inlet and outlet flange passes through hose connector external electric power heat radiator for electronic equipment, power electronic equipment radiator is mounted on power electronic equipment, in the enclosed space that circulating pump, condenser, knockout drum, fluid reservoir and the hose connector is formed, filled with the R134a media with pressure, it is an advantage of the invention that：The present invention is enclosed cooling system, has good insulation and anti-freezing property, while power electronic equipment can be made to have preferable uniform temperature.
Description
Technical field
Cooling system more particularly to a kind of two-phase cooling based on R134a the present invention relates to a kind of power electronic equipment
System.
Background technology
Large power power electronic appliance uses semiconductor power device IGBT etc. to be carried out as electronic switch to AC power
Rectification carries out DC power supply inversion, and changes the characteristic parameters such as amplitude, frequency and phase angle in conversion process, so as to complete
The controlling electric energy of specific purpose, meets industrial requirement, silicon semiconductor power device switching frequency from hundreds of hertz to
Tens of thousands of hertz etc., often switch is primary is accompanied by switching loss generation heat；It itself is deposited when power device flows through electric current simultaneously
In voltage drop and heat is converted into, this two-part heat, which adds up, constitutes the fever of power device, power device normal work
Premise be that PN junction temperature is maintained below a certain range (usual less than 125 degrees Celsius), it is desirable that its generate heat must and
When shed, otherwise cause burning；Traditional type of cooling is using air-cooled, but its cooling power is very limited, and environmental suitability is poor,
Noise is big, it is caused not to be suitable for high-power adverse circumstances and the slightly higher occasion of environmental impact assessment index, and water-cooling system is directed to high-power evil
Bad environment has the function of closed cooling, but since the insulation performance of water itself is poor, harm is huge caused by leak,
Therefore it is not high in high pressure occasion reliability and safety, while the anti-freezing property of water is very poor, use environment is temperature limited, the opposing party
Face can reduce heat dissipation effect again using anti-icing fluid.
Invention content
The object of the present invention is to provide a kind of enclosed cooling systems, have good insulation and anti-freezing property, while energy
Make power electronic equipment that there is the two-phase cooling system based on R134a of preferable uniform temperature.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of two-phase cooling system based on R134a, including：Cabinet arranges cycle inside cabinet on lower floor's bottom plate
Control panel is arranged in pump, cabinet front side, and outlet(discharge) flange is installed on the left of cabinet, and inlet and outlet flange includes suction flange and exports method
Orchid, inlet and outlet flange are mounted on electric power by hose connector external electric power heat radiator for electronic equipment, power electronic equipment radiator
On electronic equipment, feature is：Condenser is arranged in the cabinet middle level, is arranged and is divided on cabinet inside lower floor bottom plate
From tank and fluid reservoir, mounted on the side of circulating pump, the pump entry end uses hose connector for knockout drum and fluid reservoir
It connects knockout drum lower end exit and fluid reservoir lower end exit, hose connector and condenser is used at knockout drum upper end outlet
Upper end connects, and the central exit position of knockout drum is connect with suction flange using hose connector, led at the upper end outlet of fluid reservoir
The lower end for crossing hose connector and condenser connects, and the circulating pump, condenser, knockout drum, fluid reservoir and hose connector are formed
Enclosed space in, filled with the R134a media with pressure, keep vehicle repair major coexisting state under pressure, wherein
Liquid R134a density is high, is predominantly located at the enclosed space that circulating pump, condenser, knockout drum, fluid reservoir and hose connector are formed
Interior lower part, gaseous state R134a density is small, is predominantly located at what circulating pump, condenser, knockout drum, fluid reservoir and hose connector were formed
Top in enclosed space.
According to a kind of two-phase cooling system based on R134a, feature is：Condenser one in the cabinet
Side can parallel configuration have secondary condenser.
According to a kind of two-phase cooling system based on R134a, feature is：The condenser can be wind
Cool condenser or water fluorine condenser.
According to a kind of two-phase cooling system based on R134a, feature is：The port of export of the circulating pump
Check-valves, check-valves connection outlet flange is configured.
According to a kind of two-phase cooling system based on R134a, feature is：Inlet and outlet flange in the cabinet
Between parallel configuration have bypass valve.
According to a kind of two-phase cooling system based on R134a, feature is：Check-valves and go out in the cabinet
Arranged in series has device for drying and filtering between mouth flange.
According to a kind of two-phase cooling system based on R134a, feature is：The control panel passes through PLC
Programmable controller processing, and man-machine interface and control panel are installed in control panel upper end, pacify on the knockout drum and fluid reservoir
It is connected equipped with monitoring pressure gauge and liquid level sensor, the monitoring pressure gauge, liquid level sensor with PLC programmable controller
It connects.
It is an advantage of the invention that：The freezing point of R134a is -103 degrees Celsius, therefore completely without anti-in the present invention applies
Jelly measure, the insulation performance of R134a are 1,000,000 times of the resistivity of water, therefore excellent insulating property, simultaneously close to air
Shwoot under R134a normal temperature and pressures, it is nontoxic, it is the cooling medium of environmental protection；In the use of the present invention, liquid R134a is being recycled
It send to power electronic equipment radiator under the pressure effect of pump, is acted on by conduction and internal convection by power electronic equipment
Heat transfer gives liquid R134a, is vaporized after liquid R134a absorption heats and forms R134a vehicle repair major mixtures, in power electronics
To ensure that liquid R134a will not be completely vaporized during cooling power electronic equipment inside equipment cooling device, to avoid hot gas was formed
Body, the front end of condenser are provided with knockout drum, for detaching vehicle repair major R134a, only so that gaseous state R134a ascends into condensation
Pipeline, liquid R134a directly flow back, and gaseous state R134a enters condenser and cooled down, between the import of circulating pump and condenser
It is provided with fluid reservoir, collects the liquid R134a of condenser outflow, final liquid R134a is back at pump entry, completes one
Secondary cycle, since two-phase cooling belongs to the range of Phase cooling, and traditional heat-dissipating mode is heat convection, in same volume stream
In the case of amount, the heat-sinking capability of two-phase cooling is 8 times of water cooling, is air cooled 28000 times or more, therefore two-phase is cold
But flow is small, and noise is small, and low energy consumption, simultaneously because at power electronic equipment heat source, liquid R134a is not exclusively vaporized, and
It vaporizes in heat transfer process, R134a temperature remains constant, may insure all power electronic equipment spreader surface temperature one in this way
It causes, greatly optimizes the thermal balance state of whole system, but also system radiating design simplifies, power electronic equipment radiator
Arbitrary connection in series-parallel will not cause temperature superimposition；Condenser is divided into two parallel connections of condenser and secondary condenser, can meet structure
On left-right balance, while reduce the flow resistance of system；It, can in Tube formation and filling process since R134a has hydrophily
The moisture in air can be carried secretly, therefore system configuration device for drying and filtering, for liquid R134a to be kept to dry；Import and export flange
Side parallel connection bypass valve, for overhauling and quickly disconnecting；The port of export configuration check-valves of the circulating pump, check-valves connection
Outlet(discharge) flange can prevent R134a from flowing backwards, and then influence power electronic equipment heat dissipation performance；Monitor pressure gauge and liquid level sensor
Signal is uniformly sent to PLC programmable controller processing, the present invention is made to have automatic monitoring operation function；To sum up, the present invention with
Traditional air cooling way is compared, and is had the advantage that：Heat-sinking capability is strong, and closed cooling, environmental suitability is strong, and flow is small, noise
With low energy consumption, uniform temperature is good, and floor space is small；And the present invention has the advantage that compared with traditional water-cooling pattern：Heat-sinking capability
By force, uniform temperature is good, and frost resistance is good, and good insulating is safe.
Description of the drawings
This 1 invention main view schematic diagram of figure.
Fig. 2 rearview structural representations of the present invention.
Fig. 3 the side view figure structure schematic representation of the present invention.
In attached drawing
1. fluid reservoir, 2. circulating pumps, 3. check-valves, 4. knockout drums, 5. cabinets, 6. control panels, 7. man-machine interfaces, 8. controls
Panel, 9. condensers, 10. secondary condensers, 11. monitoring pressure gauges, 12. devices for drying and filtering, 13. bypass valves, 14. inlet and outlet methods
It is blue.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
A kind of two-phase cooling system based on R134a, as shown in Figure 1, 2, 3, including：Cabinet 5, subordinate in cabinet 5
Circulating pump 2 is arranged on layer bottom plate, 5 front side arrangement control panel 6 of cabinet, the left side of cabinet 5 is installed into outlet(discharge) flange 14, imports and exports method
Orchid 14 includes suction flange and outlet(discharge) flange, and inlet and outlet flange 14 passes through hose connector external electric power heat radiator for electronic equipment, electricity
Power heat radiator for electronic equipment is mounted on power electronic equipment, 5 middle level of cabinet arrangement condenser 9, in the cabinet 5
Arrangement knockout drum 4 and fluid reservoir 1 on subordinate's layer bottom plate, knockout drum 4 and fluid reservoir 1 are mounted on the side of circulating pump 2, and described follows
Ring pumps 2 arrival ends and connects 1 lower end exit of 4 lower end exit of knockout drum and fluid reservoir using hose connector, is brought out on knockout drum 4
It is connect at mouthful using hose connector with the upper end of condenser 9, the central exit position of knockout drum 4 uses hose connector and import method
Orchid connects, and is connect at the upper end outlet of fluid reservoir 1 by hose connector with the lower end of condenser 9, the circulating pump 2, condensation
In the enclosed space that device 9, knockout drum 4, fluid reservoir 1 and hose connector are formed, filled with the R134a media with pressure, pressing
Power effect is lower to keep vehicle repair major coexisting state, and wherein liquid R134a density is high, is predominantly located at circulating pump 2, condenser 9, separation
The lower part in enclosed space that tank 4, fluid reservoir 1 and hose connector are formed, gaseous state R134a density is small, is predominantly located at circulating pump
2nd, the top in the enclosed space that condenser 9, knockout drum 4, fluid reservoir 1 and hose connector are formed.
In the present embodiment：Condenser 9 in the cabinet 5 on one side can parallel configuration have secondary condenser 10.
In the present embodiment：The condenser 9 and secondary condenser 10 can be air-cooled condenser or water fluorine condenser.
In the present embodiment：Parallel configuration has bypass valve 13 between inlet and outlet flange 14 in the cabinet 5.
In the present embodiment：Arranged in series has device for drying and filtering 12 between check-valves 3 and outlet(discharge) flange in the cabinet 5.
In the present embodiment：The control panel 6 is handled by PLC programmable controller, and 6 upper end of control panel installation people
Machine interface 7 and control panel 8 are equipped with monitoring pressure gauge 11 and liquid level sensor, institute on the knockout drum 4 and fluid reservoir 1
Monitoring pressure gauge 11, the liquid level sensor stated are connected with PLC programmable controller.
Advantageous effect of the present invention：The freezing point of R134a is -103 degrees Celsius, therefore completely without anti-in the present invention applies
Jelly measure, the insulation performance of R134a are 1,000,000 times of the resistivity of water, therefore excellent insulating property, simultaneously close to air
Shwoot under R134a normal temperature and pressures, it is nontoxic, it is the cooling medium of environmental protection；In the use of the present invention, liquid R134a is being recycled
It send to power electronic equipment radiator under the pressure effect of pump, is acted on by conduction and internal convection by power electronic equipment
Heat transfer gives liquid R134a, is vaporized after liquid R134a absorption heats and forms R134a vehicle repair major mixtures, in power electronics
To ensure that liquid R134a will not be completely vaporized during cooling power electronic equipment inside equipment cooling device, to avoid hot gas was formed
Body, the front end of condenser 9 is provided with knockout drum 4, and for detaching vehicle repair major R134a, it is cold only so that gaseous state R134a is ascended into
Solidifying pipeline, liquid R134a directly flow back, and gaseous state R134a enters condenser 9 and cooled down, import and condenser in circulating pump 2
Fluid reservoir 1 is provided between 9, liquid R134a, final liquid R134a that condenser 9 flows out is collected and is back to 2 entrance of circulating pump
Place completes one cycle, and since two-phase cooling belongs to the range of Phase cooling, and traditional heat-dissipating mode is heat convection,
In the case of same volume flow, the heat-sinking capability of two-phase cooling is 8 times of water cooling, is air cooled 28000 times or more,
Therefore the flow of two-phase cooling is small, and noise is small, and low energy consumption, simultaneously because at power electronic equipment heat source, liquid R134a is endless
Full vaporization, and vaporize in heat transfer process, R134a temperature remains constant, may insure all power electronic equipment radiators in this way
Surface temperature is consistent, greatly optimizes the thermal balance state of whole system, but also system radiating design simplifies, power electronics
The arbitrary connection in series-parallel of equipment cooling device will not cause temperature superimposition；9 side of condenser secondary condenser 10 in parallel, can meet in structure
Left-right balance, while reduce the flow resistance of system；It, may in Tube formation and filling process since R134a has hydrophily
The moisture in air, therefore system configuration device for drying and filtering 12 are carried secretly, for liquid R134a to be kept to dry；Import and export flange
14 sides bypass valve 13 in parallel, for overhauling and quickly disconnecting；The port of export configuration check-valves 3 of the circulating pump 2, non-return
3 connection outlet flange of valve, can prevent R134a from flowing backwards, and then influence power electronic equipment heat dissipation performance；Monitor pressure gauge 11 and liquid
Level sensor uniformly send signal to PLC programmable controller processing, and the present invention is made to have automatic monitoring operation function；To sum up,
The present invention has the advantage that compared with traditional air cooling way：Heat-sinking capability is strong, and closed cooling, environmental suitability is strong, flow
Small, noise and low energy consumption, uniform temperature is good, and floor space is small；And the present invention has the advantage that compared with traditional water-cooling pattern：
Heat-sinking capability is strong, and uniform temperature is good, and frost resistance is good, and good insulating is safe.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and protection domain is defined, under the premise of design concept of the present invention is not departed from, ordinary skill technical staff in this field
To all variations and modifications that technical scheme of the present invention is made, protection scope of the present invention should all be fallen into.
Claims (4)
1. a kind of two-phase cooling system based on R134a, including：Cabinet (5) is arranged on the internal lower floor's bottom plate of cabinet (5)
Circulating pump (2), cabinet (5) front side arranges control panel (6), outlet(discharge) flange (14) is installed on the left of cabinet (5), imports and exports flange
(14) including suction flange and outlet(discharge) flange, inlet and outlet flange (14) by hose connector external electric power heat radiator for electronic equipment,
Power electronic equipment radiator is mounted on power electronic equipment, it is characterised in that：Cabinet (5) middle level arrangement condenser
(9), arrangement knockout drum (4) and fluid reservoir (1), knockout drum (4) and fluid reservoir (1) on the internal lower floor's bottom plate of the cabinet (5)
Mounted on the side of circulating pump (2), the circulating pump (2) arrival end is exported using hose connector connection knockout drum (4) lower end
Place and fluid reservoir (1) lower end exit are connect using hose connector with the upper end of condenser (9) at knockout drum (4) upper end outlet,
The central exit position of knockout drum (4) is connect using hose connector with suction flange, by soft at the upper end outlet of fluid reservoir (1)
Connecting tube is connect with the lower end of condenser (9), the circulating pump (2), condenser (9), knockout drum (4), fluid reservoir (1) and soft
In the enclosed space that connecting tube is formed, filled with the R134a media with pressure, vehicle repair major is kept to coexist under pressure
State, wherein liquid R134a density are high, are predominantly located at circulating pump (2), condenser (9), knockout drum (4), fluid reservoir (1) and soft
The lower part in enclosed space that connecting tube is formed, gaseous state R134a density is small, is predominantly located at circulating pump (2), condenser (9), divides
The top in enclosed space formed from tank (4), fluid reservoir (1) and hose connector, the condenser (9) in the cabinet (5)
On one side can parallel configuration have a secondary condenser (10), the condenser (9) and secondary condenser (10) can for air-cooled condenser or
Person's water fluorine condenser.
2. the two-phase cooling system according to claim 1 based on R134a, it is characterised in that：It is passed in and out in the cabinet (5)
Parallel configuration has bypass valve (13) between mouth flange (14).
3. the two-phase cooling system according to claim 1 based on R134a, it is characterised in that：The interior non-return of the cabinet (5)
Valve (3) arranged in series between outlet(discharge) flange has device for drying and filtering (12).
4. the two-phase cooling system according to claim 1 based on R134a, it is characterised in that：The control panel (6) is logical
Cross PLC programmable controller processing, and control panel (6) upper end installation man-machine interface (7) and control panel (8), the separation
Monitoring pressure gauge (11) and liquid level sensor, the monitoring pressure gauge (11), liquid level are installed on tank (4) and fluid reservoir (1)
Sensor is connected with PLC programmable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412190.8A CN105658018B (en) | 2014-08-14 | 2014-08-14 | A kind of two-phase cooling system based on R134a |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412190.8A CN105658018B (en) | 2014-08-14 | 2014-08-14 | A kind of two-phase cooling system based on R134a |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105658018A CN105658018A (en) | 2016-06-08 |
| CN105658018B true CN105658018B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412190.8A Expired - Fee Related CN105658018B (en) | 2014-08-14 | 2014-08-14 | A kind of two-phase cooling system based on R134a |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04192398A (en) * | 1990-11-22 | 1992-07-10 | Hitachi Ltd | Cooling device |
| CN103307677A (en) * | 2013-06-14 | 2013-09-18 | 无锡金龙石化冶金设备制造有限公司 | Novel air conditioner dehumidification unit |
| CN103486752A (en) * | 2013-09-25 | 2014-01-01 | 珠海格力电器股份有限公司 | Power electronic device cooling system and distributed power generation system |
| CN204069609U (en) * | 2014-08-14 | 2014-12-31 | 上海绿凡电力科技有限公司 | A kind of two-phase cooling system based on R134a |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3885679B2 (en) * | 2002-06-28 | 2007-02-21 | 株式会社日立製作所 | Electronics |
-
2014
- 2014-08-14 CN CN201410412190.8A patent/CN105658018B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04192398A (en) * | 1990-11-22 | 1992-07-10 | Hitachi Ltd | Cooling device |
| CN103307677A (en) * | 2013-06-14 | 2013-09-18 | 无锡金龙石化冶金设备制造有限公司 | Novel air conditioner dehumidification unit |
| CN103486752A (en) * | 2013-09-25 | 2014-01-01 | 珠海格力电器股份有限公司 | Power electronic device cooling system and distributed power generation system |
| CN204069609U (en) * | 2014-08-14 | 2014-12-31 | 上海绿凡电力科技有限公司 | A kind of two-phase cooling system based on R134a |
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| CN105658018A (en) | 2016-06-08 |
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