CN104764291A - Two-phase liquid cooling system - Google Patents
Two-phase liquid cooling system Download PDFInfo
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- CN104764291A CN104764291A CN201510122063.9A CN201510122063A CN104764291A CN 104764291 A CN104764291 A CN 104764291A CN 201510122063 A CN201510122063 A CN 201510122063A CN 104764291 A CN104764291 A CN 104764291A
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- cooling system
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- refrigerant
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- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
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- Physics & Mathematics (AREA)
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- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a two-phase liquid cooling system. The two-phase liquid cooling system comprises a condenser, a refrigerant pump and a refrigeration tail end; the condenser is connected with the inlet of the refrigerant pump; at least one branch of the outlet of the refrigerant pump is connected with the condenser by use of the refrigeration tail end; a liquid storage tank for storing the refrigerant is arranged between the condenser and the refrigerant pump; a flow control device is arranged between the outlet of the refrigerant pump and the refrigeration tail end. The cooling system is applied to the fields of power electronics and telecommunications; the adopted refrigerant is Freon, and is good in insulation property and gaseous under normal pressure, and therefore, even though the refrigerant leaks, the potential safety hazard of short circuit can be avoided; as a result, the problems of water leakage short circuit, regular exhaust maintenance and the like due to a water cooling system are solved; meanwhile, due to two-phase heat exchange, the heat exchange coefficient is high and the problem of insufficient heat dissipation density of forced air cooling is solved. The Freon is adopted to realize two-phase heat exchange, and the phase-change gasification latent heat is far higher than that of single-phase heat exchange of traditional water cooling; as a result, under the same heat exchange amount, the flow of the refrigerant needed by two-phase liquid cooling is far smaller than that of the traditional water cooling system.
Description
Technical field
The invention belongs to telecommunications and electric and electronic technical field, relate to the liquid-cooled cooling system of a kind of two-phase.
Background technology
At power domain, the cooling system for SVG/SVC, converter valve, current transformer, frequency converter etc. is generally air-cooled and water-cooled.Air-cooled being generally is blown radiator by blower fan and is carried out forced-convection heat transfer, and Application comparison is limited, and one is that noise is higher; Two is that heat exchange density is too low, and use scenes is limited.Water-cooled is generally to be flowed in cooled plate by aqueous water takes away equipment high-temperature component heat, is then dispersed into air by external heat sink, forms circulation by pump.Water-cooling system exists in application process that water leaks, exhaust, parts need the problems such as periodic maintenance.
Summary of the invention
The present invention considers water-cooled and the air-cooled above problem existed in the application, provides the liquid-cooled cooling system of a kind of two-phase, can support high heat radiation density requirement, also solves the problems such as the leakage in water system, exhaust and periodic maintenance simultaneously.
The present invention is achieved through the following technical solutions:
The liquid-cooled cooling system of a kind of two-phase, comprise condenser, refrigerated medium pump and refrigeration end, condenser is connected with refrigerated medium pump entrance, refrigerated medium pump outlet at least divides a road to be connected with condenser through refrigeration end, be provided with the fluid reservoir that cold-producing medium is stored between condenser and refrigerated medium pump, between refrigerated medium pump outlet and refrigeration end, be provided with volume control device.
Heater is provided with between described refrigerated medium pump outlet and volume control device.
The outlet of heater divides three tunnels, and three tunnels are connected with condenser inlet after refrigeration end through volume control device respectively.
Heater is provided with between described volume control device and refrigeration end.
Described heater is heater.
Described heater for be directly dipped in cold-producing medium, directly to the electric heater of refrigerant heat.
Described refrigerated medium pump entrance exports with fluid reservoir and is connected, and described cold-producing medium delivery side of pump divides three tunnels, and three tunnels are connected with condenser inlet after refrigeration end through volume control device respectively, and condensator outlet is connected with fluid reservoir entrance.
Described volume control device is the flow controller controlling the refrigerant flow being transported to heat radiation end.
Compared with prior art, the present invention has following useful technique effect:
1, this kind of cooling system of power electronics and field of telecommunications is applied to, the cold-producing medium adopted is freon, good insulating, and is gaseous state at ambient pressure, even if leak the potential safety hazard also not having short circuit, the problems such as the water leakage shorts that solution water-cooling system is brought and regularly exhaust maintenance.
2, adopt two-phase heat exchange, the coefficient of heat transfer is high, solves the not enough problem of heat radiation density of air blast cooling.
3, adopt the heat exchange of freon two-phase, phase transformation gasification latent heat is far above the single-phase heat exchange of traditional water-cooled, and under therefore identical heat exchange amount, the refrigerant flow that two-phase liquid cooling needs is much smaller than traditional water-cooling system.
4, the liquid-cooled cooling system of two-phase, can support high heat radiation density requirement, also solves the problems such as the leakage in water system, exhaust and periodic maintenance simultaneously.
5, this cooling system has special heater between refrigerated medium pump and refrigeration end, and this heater can be used for heating and cooling agent, prevents winter temperature too low.
6, this cooling system has special fluid reservoir between condenser and pump, and the effect of this fluid reservoir is refrigerant liquid in order to ensure what enter pump.
Accompanying drawing explanation
Fig. 1 is the liquid-cooled cooling system structure schematic diagram of two-phase provided by the invention.
Wherein: 1 is refrigerated medium pump; 2 is heater; 3 is flow controller; 4 is refrigeration end; 5 is condenser; 6 is fluid reservoir.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, the liquid-cooled cooling system of a kind of two-phase, the fluid reservoir 6 comprising refrigerated medium pump 1 and cold-producing medium is stored, described refrigerated medium pump 1 entrance exports with fluid reservoir 6 and is connected, refrigerated medium pump 1 outlet is connected with the entrance of heater 2, the outlet of heater 2 divides three tunnels, and the flow controller 3 of three tunnels respectively through controlling the refrigerant flow being transported to heat radiation end is connected with condenser 5 entrance after refrigeration end 4, and condenser 5 exports and is connected with fluid reservoir 6 entrance.Wherein, described heater 2 for be directly dipped in cold-producing medium, directly to the electric heater of refrigerant heat.Meanwhile, this cold-producing medium is freon.
Or described refrigerated medium pump 1 exports point three tunnels, three tunnels respectively through controlling the flow controller 3 of the refrigerant flow being transported to heat radiation end, heater 2 is connected with condenser 5 entrance after refrigeration end 4, condenser 5 exports and is connected with fluid reservoir 6 entrance.
It should be noted that, described refrigeration end 4 and flow controller 3 can be all multiple also can be single, if refrigeration end 4 be single, then flow controller 3 also be single, and flow controller 3 supports the use with the end 4 that freezes.
As shown in Figure 1, operation principle of the present invention is:
Refrigerant liquid is conveyed into heater 2 by refrigerated medium pump 1, in heater 2, determine whether heat according to concrete user demand, then cold-producing medium enters into flow controller 3 by heater 2, flow controller 3 controls the refrigerant flow of conveying toward each heat radiation end 4, cold-producing medium carries out two-phase heat exchange in each refrigeration end 4, absorb the heat of power electronic equipment, then enter into condenser 5 with gas-liquid two-phase form from heat radiation end 4 and carry out condensing heat-exchange, the fluid reservoir 6 that liquid refrigerant enters cold-producing medium is become after gas-liquid two-phase cold-producing medium dispels the heat within the condenser, refrigerated medium pump 1 entrance exports to be connected with fluid reservoir 6 and sucks liquid refrigerant and pressurize, completion system circulates.
The liquid-cooled cooling system of this two-phase, employing freon is circulating refrigerant, by the refrigerated medium pump of specialty, liquid refrigerant is delivered in the refrigeration end for electric power or electronic equipment, by heat conduction form cooling device, or forced convertion mode cooling-air, then by chilled air cools equipment.Cold-producing medium after refrigeration end becomes two phases from liquid state and enters condenser, and cold-producing medium is cooled to liquid state by gas-liquid two-phase by air-cooled or water-cooling pattern by condenser, then enters refrigerated medium pump and carries out next one heat radiation circulation.
The present invention has following beneficial effect:
1, this kind of cooling system of field of power electronics is applied to, the cold-producing medium adopted is freon, good insulating, and is gaseous state at ambient pressure, even if leak the potential safety hazard also not having short circuit, the problems such as the water leakage shorts that solution water-cooling system is brought and regularly exhaust maintenance.
2, adopt two-phase heat exchange, the coefficient of heat transfer is high, solves the not enough problem of heat radiation density of air blast cooling.
3, adopt the heat exchange of freon two-phase, phase transformation gasification latent heat is far above the single-phase heat exchange of traditional water-cooled, and under therefore identical heat exchange amount, the refrigerant flow that two-phase liquid cooling needs is much smaller than traditional water-cooling system.
4, this cooling system, can support high heat radiation density requirement, also solves the problems such as the leakage in water system, exhaust and periodic maintenance simultaneously.
5, this cooling system has special heater between refrigerated medium pump and refrigeration end, and this heater can be used for heating and cooling agent, prevents winter temperature too low.
6, this cooling system has special fluid reservoir between condenser and pump, and the effect of this fluid reservoir is refrigerant liquid in order to ensure what enter pump.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. the liquid-cooled cooling system of two-phase, it is characterized in that, comprise condenser (5), refrigerated medium pump (1) and refrigeration end (4), condenser (5) is connected with refrigerated medium pump (1) entrance, refrigerated medium pump (1) outlet at least divides a road to be connected with condenser (5) through refrigeration end (4), be provided with the fluid reservoir (6) that cold-producing medium is stored between condenser (5) and refrigerated medium pump (1), between refrigerated medium pump (1) outlet and refrigeration end (4), be provided with volume control device.
2. the liquid-cooled cooling system of two-phase according to claim 1, is characterized in that, is provided with heater between described refrigerated medium pump (1) outlet and volume control device.
3. the liquid-cooled cooling system of two-phase according to claim 2, is characterized in that, the outlet of heater divides three tunnels, and three tunnels are connected with condenser inlet after refrigeration end through volume control device respectively.
4. the liquid-cooled cooling system of two-phase according to claim 1, is characterized in that, is provided with heater between described volume control device and refrigeration end (4).
5. the liquid-cooled cooling system of the two-phase according to claim 2 or 4, is characterized in that, described heater is heater (2).
6. the liquid-cooled cooling system of two-phase according to claim 5, is characterized in that, described heater (2) for be directly dipped in cold-producing medium, directly to the electric heater of refrigerant heat.
7. the liquid-cooled cooling system of two-phase according to claim 1, it is characterized in that, described refrigerated medium pump (1) entrance exports with fluid reservoir (6) and is connected, the outlet of described refrigerated medium pump (1) divides three tunnels, three tunnels are connected with condenser (5) entrance after refrigeration end (4) through volume control device respectively, and condenser (5) outlet is connected with fluid reservoir (6) entrance.
8. the liquid-cooled cooling system of two-phase according to claim 1, is characterized in that, described volume control device is the flow controller (3) controlling the refrigerant flow being transported to heat radiation end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122063.9A CN104764291A (en) | 2015-03-19 | 2015-03-19 | Two-phase liquid cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122063.9A CN104764291A (en) | 2015-03-19 | 2015-03-19 | Two-phase liquid cooling system |
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| CN104764291A true CN104764291A (en) | 2015-07-08 |
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| CN201510122063.9A Pending CN104764291A (en) | 2015-03-19 | 2015-03-19 | Two-phase liquid cooling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024013A (en) * | 2016-02-01 | 2017-08-08 | 珠海格力电器股份有限公司 | Air conditioner and its control method |
| CN110822961A (en) * | 2019-11-26 | 2020-02-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Two-phase fluid cooling system |
| CN111148413A (en) * | 2020-01-17 | 2020-05-12 | 北京中电国核节能环保科技股份有限公司 | Converter valve cooling system |
| CN112420342A (en) * | 2020-10-27 | 2021-02-26 | 株洲中车时代电气股份有限公司 | Pump-driven phase-change cooling load system based on power electronic transformer |
| CN113784582A (en) * | 2021-08-16 | 2021-12-10 | 苏州浪潮智能科技有限公司 | Pump-driven two-phase liquid cooling system for realizing stable flow distribution and flow control method |
| CN116190847A (en) * | 2023-02-22 | 2023-05-30 | 南京艾科美热能科技有限公司 | Phase change temperature control system and control method for energy storage battery |
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| CN101193526A (en) * | 2006-11-20 | 2008-06-04 | 沈国忠 | Heat radiation method for high-power electronic part and heat radiation device using this method |
| CN102207763A (en) * | 2010-03-29 | 2011-10-05 | 研能科技股份有限公司 | Miniature liquid cooling system |
| US20120324930A1 (en) * | 2003-12-05 | 2012-12-27 | Liebert Corporation | Cooling system for high density heat load |
| CN103075847A (en) * | 2013-01-17 | 2013-05-01 | 深圳睿立方智能科技有限公司 | Terminal refrigeration system with refrigerant pump and data center terminal refrigeration system |
| CN204494970U (en) * | 2015-03-19 | 2015-07-22 | 西安理华节能技术有限公司 | The liquid-cooled cooling system of a kind of two-phase |
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Patent Citations (5)
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| US20120324930A1 (en) * | 2003-12-05 | 2012-12-27 | Liebert Corporation | Cooling system for high density heat load |
| CN101193526A (en) * | 2006-11-20 | 2008-06-04 | 沈国忠 | Heat radiation method for high-power electronic part and heat radiation device using this method |
| CN102207763A (en) * | 2010-03-29 | 2011-10-05 | 研能科技股份有限公司 | Miniature liquid cooling system |
| CN103075847A (en) * | 2013-01-17 | 2013-05-01 | 深圳睿立方智能科技有限公司 | Terminal refrigeration system with refrigerant pump and data center terminal refrigeration system |
| CN204494970U (en) * | 2015-03-19 | 2015-07-22 | 西安理华节能技术有限公司 | The liquid-cooled cooling system of a kind of two-phase |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024013A (en) * | 2016-02-01 | 2017-08-08 | 珠海格力电器股份有限公司 | Air conditioner and its control method |
| CN107024013B (en) * | 2016-02-01 | 2019-07-23 | 珠海格力电器股份有限公司 | Air conditioner and its control method |
| CN110822961A (en) * | 2019-11-26 | 2020-02-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Two-phase fluid cooling system |
| CN111148413A (en) * | 2020-01-17 | 2020-05-12 | 北京中电国核节能环保科技股份有限公司 | Converter valve cooling system |
| CN112420342A (en) * | 2020-10-27 | 2021-02-26 | 株洲中车时代电气股份有限公司 | Pump-driven phase-change cooling load system based on power electronic transformer |
| CN112420342B (en) * | 2020-10-27 | 2021-08-31 | 株洲中车时代电气股份有限公司 | Pump-driven phase-change cooling load system based on power electronic transformer |
| CN113784582A (en) * | 2021-08-16 | 2021-12-10 | 苏州浪潮智能科技有限公司 | Pump-driven two-phase liquid cooling system for realizing stable flow distribution and flow control method |
| CN113784582B (en) * | 2021-08-16 | 2023-01-10 | 苏州浪潮智能科技有限公司 | Pump-driven two-phase liquid cooling system for realizing stable flow distribution and flow control method |
| CN116190847A (en) * | 2023-02-22 | 2023-05-30 | 南京艾科美热能科技有限公司 | Phase change temperature control system and control method for energy storage battery |
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