CN101819000A - Split phase change heat exchanger - Google Patents

Split phase change heat exchanger Download PDF

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Publication number
CN101819000A
CN101819000A CN201010153985.3A CN201010153985A CN101819000A CN 101819000 A CN101819000 A CN 101819000A CN 201010153985 A CN201010153985 A CN 201010153985A CN 101819000 A CN101819000 A CN 101819000A
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China
Prior art keywords
heat exchanger
house steward
condenser
fin
phase transition
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Granted
Application number
CN201010153985.3A
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Chinese (zh)
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CN101819000B (en
Inventor
凌祥
顾恒
杨新俊
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201010153985.3A priority Critical patent/CN101819000B/en
Publication of CN101819000A publication Critical patent/CN101819000A/en
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Publication of CN101819000B publication Critical patent/CN101819000B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a split phase change heat exchanger, which consists of two flat tubular fin cores, a steam ascending pipe and a condensate descending pipe, wherein two ends of the flat tubular fin cores are provided with an upper flow collecting header pipe and a lower flow collecting header pipe respectively; the flow collecting header pipes are provided with a plurality of equidistant rectangular holes; a layer of solder is calendared on the outer surfaces at two ends of a plurality of straight flat tubes, the straight flat tubes are inserted into the rectangular holes and connected with the upper and lower flow collecting header pipes, and fins are distributed in the flat tubes; a fin is inserted between the adjacent two flat tubes; one flow collecting header pipe of the flat tubular fin change heat exchanger is provided with a vacuumizing perfusion sealing connection pipe; one of the flat tubular fin cores is used as an evaporator, and the other flat tubular fin core is used as a condenser; and the upper flow collecting header pipe of the evaporator and the upper flow collecting header pipe of the condenser are connected through the steam ascending pipe, the lower flow collecting header pipe of the evaporator and the lower flow collecting header pipe of the condenser are connected through the condensate descending pipe, the condenser is placed higher than the evaporator, and a height difference is formed between the condenser and the evaporator.

Description

A kind of separated phase transition heat exchanger
Technical field
Separated phase transition heat exchanger of the present invention relates to a kind of air-air heat exchanger, particularly with the heat exchanger of the supporting a kind of confined space electronic equipment dissipating heat in base station, Fang Cang, rack.
Background technology
So the temperature environment that physical size is more and more littler, heat flow density also increases high temperature along with the developing that overall power density with MEMS development of technology, electronic devices and components increases substantially rapidly of high frequency, high speed and the integrated circuit technique of electronic device will certainly influence the performance of electronic devices and components thereupon, this just requires it is carried out thermal control more efficiently.Therefore, the heat dissipation problem that effectively solves electronic devices and components has become the key technology that current electronic devices and components and electronic equipment are made.
The electronic equipment cooling heat dissipation mostly is designed to have the forced air cooling formula in air channel, promptly the outer cold air of rack by in the inhalation machine of import air channel, blow on the components and parts that need cooling, after the heat exchange, hot-air is discharged outside the machine again, briefly be exactly that the inside and outside cold and hot air of machine directly exchanges cooling, its advantage is simple, reliably, expense is low, yet maximum shortcoming is the direct access arrangement of the air inside that the open circuit cooling does not purify, grit on the passage is constantly poly-to be increased, make drag characteristic on the air duct and air flow property worse and worse, until destroying intrinsic radiating effect. and the particulate that has a conduction is wrapped up in the access arrangement of mixing in grit together, cause high voltage flash, make the equipment cisco unity malfunction.So advantage such as that though open circuit cooling has is simple, reliable, expense is low, it directly influences the fault rate of electronic equipment and inadvisable.And existing heat exchanger exists complex structure, manufacturing and cost height when using as the rack heat exchanger, and the low problem of heat exchanger effectiveness.
Summary of the invention
The present invention is intended to overcome the problem of above-mentioned existence, and a kind of separated phase transition heat exchanger is provided, advantage such as this separated phase transition heat exchanger had both had that compact conformation intensity is good, low cost of manufacture, volume are little, in light weight; Have again and thermal source and low-temperature receiver separation can be carried out heat exchange in two places, arrangement convenience effectively prevents two kinds of advantages such as leakage between the fluid.
The objective of the invention is to be achieved through the following technical solutions: a kind of separated phase transition heat exchanger, it is characterized in that, described separated phase transition heat exchanger is made up of two flat tubular fin core, vapor uptake and condensate descending, described flat tubular fin core two ends are respectively equipped with afflux house steward and lower header house steward, have some equidistant rectangular openings on the afflux house steward, calendering one deck solder on some straight flat tube two ends outer surfaces, insert in each rectangular opening, link to each other with last lower header house steward, and each flat tube inside is furnished with fin; Insert fin between adjacent two flat tubes; An afflux house steward of flat tubular fin phase-change heat-exchanger is provided with evacuation liquid-filling and seals adapter, and flat tubular fin core adopts integral braze-welded forming; A described flat tubular fin core is used as condenser as evaporimeter, another flat tubular fin core; The last afflux house steward of evaporimeter and the last afflux house steward of condenser are connected by described vapor uptake, the lower header house steward of evaporimeter is connected by described condensation down-comer with the lower header house steward of condenser, evaporimeter and condenser and vapor uptake and condensate descending are by being welded to connect into a Natural Circulation loop, and the position that condenser is placed is higher than evaporimeter, forms difference in height between the two.
A flat tubular fin core is as evaporimeter among the present invention, and promptly phase-change working substance absorbs the heat of the hot blast of walking between flat tube in the inner evaporation of flat tube; Another flat tubular fin core is as condenser, and promptly phase-change working substance is at the flat tube internal condensation, the cold wind that heat is passed between flat tube to be walked.Two core bodys and vapor uptake and condensate descending connect into closed circuit.Flat tubular fin condensation core body must be higher than the flat tubular fin evaporation core body, and it is poor to form minimum constructive height.Can form certain density contrast between liquid down-comer and the vapor uptake, this density contrast is relevant with the difference in height of condensation segment and evaporator section, the pressure head that can provide is in order to the pressure loss that balance working medium flows, and maintaining the normal operation of system and do not need additionaling power.Arrive condensation segment, under the gravity effect, get back to evaporator section through the liquid down-comer,
When separated phase transition heat exchanger of the present invention is worked, working medium evaporation in the evaporimeter flat tube, its internal vapor pressure raises, the steam that produces arrives condenser by vapor uptake, discharge latent heat and condense into liquid because the gravity effect flows to the lower header house steward, be back in the evaporimeter by condensate descending, operation so moves in circles again.
Described upper and lower afflux house steward is pipe, semicircle pipe or rectangular tube, and it and straight flat tube inner chamber, vapor uptake, condensate descending are connected to form an airtight cavity.An afflux house steward is provided with adapter therein, and this adapter can link to each other in the vacuum unit, and this cavity is vacuumized and fill phase change medium, seals at last.
The gas that becomes popular in the fin between two flat tubes of described evaporimeter is walked cold gas in the fin between two flat tubes of described condenser.
Be filled with phase change medium in evaporimeter and condenser, described phase change medium comprises water, methyl alcohol, ethanol, freon and liquefied ammonia etc.
The material of described separated phase transition heat exchanger is according to different aluminium, copper, stainless steel or the good materials of other heat conductivility of can be of applied environment and requirement.
As a further improvement on the present invention, in the casing that cover plate formed around evaporimeter and condenser lay in, dividing plate in the middle of the casing separates about with evaporimeter and condenser, form outer circulation and two air channels of interior circulation, circulated air import in the front shroud right upper portion is provided with, circulated air outlet in the front shroud lower right side is provided with, circulated air import in the back shroud left upper portion is provided with, circulated air outlet in bottom, back shroud left side is provided with.
As a further improvement on the present invention, the fin form of described flat tube inside is forms such as porous shape, rectangle, the boiling heat transfer and the condensing heat-exchange of internal working medium is all had very big invigoration effect, and can increase the structural strength of heat exchanger, strengthens bearing capacity.
As a further improvement on the present invention, be provided with air bleeding valve on described condensate descending, the air bleeding valve place can also enter the mouth for fluid injection simultaneously, in the bottom of down-comer tapping valve is housed.
As a further improvement on the present invention, the material of the fin between described adjacent two flat tubes is the composite board of the sandwich style of calendering one deck solder on mother metal two-sided.
The present invention will have that compact conformation intensity is good, low cost of manufacture, have that volume is little, in light weight, heat transfer efficiency advantages of higher and arrangement convenience, effectively prevent two kinds of advantages such as leakage between the fluid.
Description of drawings
Fig. 1 is each modular construction schematic diagram of flat tubular fin core
Fig. 2 is the partial structurtes schematic diagram of flat tubular fin core flat tube
Fig. 3 is the partial structurtes schematic diagram of flat tubular fin core fin
Fig. 4 is a flat tubular fin core overall structure schematic diagram
Fig. 5 is a separate type flat tubular fin heat exchanger core body structural representation
Fig. 6 is an embodiment of the invention separated phase transition heat exchanger core body installation diagram
Fig. 7 is an embodiment of the invention separated phase transition heat exchanger box inside schematic diagram
Fig. 8 is an embodiment of the invention separated phase transition heat exchanger casing outside schematic diagram
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing:
With reference to accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4 flat tubular fin core two ends are provided with afflux house steward 101, have some equidistant rectangular openings on the afflux house steward 101, calendering one deck solder 201 on the flat tube 103 two ends outer surfaces, in the insertion rectangular opening, house steward links to each other with afflux, and flat tube 103 inside are furnished with fin, insert fin 104 between two flat tubes, fin 104 forms are sawtooth, forms such as ripple, material be a kind of on mother metal two-sided the composite board of calendering one deck solder 301 and 302 sandwich style, flat tube 103 and fin 104 are stacked at interval, the outermost both sides are provided with cover plate 102, an afflux house steward 101 of separated phase transition heat exchanger is provided with topping up and takes over 105, adopts integral braze-welded the forming of Nocolok method.
With reference to accompanying drawing 5, a flat tubular fin core 501 is used as condenser and vapor uptake 503 and condensate descending 504 and connects into a Natural Circulation loop as evaporimeter, another flat tubular fin core 502, and flat tubular fin condensation core body 502 is higher than flat tubular fin evaporation core body 501, forms difference in height.Two pipe racks core bodys are taken over by two and are connected, and form a vacuum liquid-charging cavity.The mode that adapter 505 on the afflux house steward is sealed can add welding method with Sealing pliers makes it reach the method for packing of complete driving fit.The gas that becomes popular in the fin between two flat tubes of the flat tubular fin evaporation core body 501 of separated phase transition heat exchanger is walked cold gas in the fin between two flat tubes of the flat tubular fin condensation core body 502 of separated phase transition heat exchanger.
With reference to accompanying drawing 6, the flat flat tubular fin sheet of separate type phase-change heat-exchanger is contained in 602 li of casings, and dividing plate 601 is housed in the casing, forms outer circulation and two air channels of interior circulation.
With reference to accompanying drawing 7, according to the requirement of required heat dissipation capacity the fan 702 of institute's required airflow is housed on the separated phase transition heat exchanger casing wainscot 701, and has air outlet 703.The hot blast of interior circulation is by flat tubular fin phase transformation evaporimeter 101 fin channels.During work, these working medium collect in 501 li in flat tubular fin phase transformation evaporimeter, after flat tubular fin phase transformation evaporimeter 501 is heated, and the working medium evaporation, its internal vapor pressure raises, and the steam of generation arrives flat tubular fin phase transformation condenser 502 by vapor uptake.
With reference to accompanying drawing 8, the fan 802 of institute's required airflow is housed according to the requirement of required heat dissipation capacity on the separated phase transition heat exchanger cabinet rear panel 801, and has air outlet 803.The cold wind of outer circulation makes the phase change medium condensing reflux to flat tubular fin evaporimeter 501 by flat tubular fin phase transformation evaporimeter 502 fin channels, discharges latent heat and condenses into liquid, thereby take away the heat in the electronic equipment.Under the gravity effect, get back to evaporator section through the liquid down-comer, operation so moves in circles.

Claims (10)

1. separated phase transition heat exchanger, it is characterized in that, described separated phase transition heat exchanger is made up of two flat tubular fin core, vapor uptake and condensate descending, described flat tubular fin core two ends are respectively equipped with afflux house steward and lower header house steward, have some equidistant rectangular openings on the afflux house steward, calendering one deck solder inserts in each rectangular opening on some straight flat tube two ends outer surfaces, link to each other with last lower header house steward, and each flat tube inside is furnished with fin; Insert fin between adjacent two flat tubes; An afflux house steward of flat tubular fin phase-change heat-exchanger is provided with evacuation liquid-filling and seals adapter, and flat tubular fin core adopts integral braze-welded forming; A described flat tubular fin core is used as condenser as evaporimeter, another described flat tubular fin core; The last afflux house steward of evaporimeter and the last afflux house steward of condenser are connected by described vapor uptake, the lower header house steward of evaporimeter is connected by described condensation down-comer with the lower header house steward of condenser, evaporimeter and condenser and vapor uptake and condensate descending are by being welded to connect into a Natural Circulation loop, and the position that condenser is placed is higher than evaporimeter, forms difference in height between the two.
2. separated phase transition heat exchanger according to claim 1, it is characterized in that, in the casing that cover plate formed around evaporimeter and condenser lay in, dividing plate in the middle of the casing separates about with evaporimeter and condenser, form outer circulation and two air channels of interior circulation, circulated air import in the front shroud right upper portion is provided with, circulated air outlet in the front shroud lower right side is provided with, circulated air import in the back shroud left upper portion is provided with, circulated air outlet in bottom, back shroud left side is provided with.
3. separated phase transition heat exchanger according to claim 1 is characterized in that, described upper and lower afflux house steward is pipe, semicircle pipe or rectangular tube.
4. separated phase transition heat exchanger according to claim 1 is characterized in that, is filled with phase change medium in evaporimeter and condenser, and described phase change medium comprises water, methyl alcohol, ethanol, freon and liquefied ammonia.
5. afflux house steward according to claim 1 is characterized in that, described afflux house steward is pipe, semicircle pipe or rectangular tube, has some rectangular channels above.
6. according to the described separated phase transition heat exchanger of claim 1, it is characterized in that it is porous shape, saw tooth fin that fin is arranged in the described flat tube.
7. separated phase transition heat exchanger according to claim 1 is characterized in that, fin material is the composite board of the sandwich style of calendering one deck solder on mother metal two-sided between described adjacent two flat tubes.
8. separated phase transition heat exchanger according to claim 1 is characterized in that, afflux house steward of described separated phase transition heat exchanger is provided with to take over and is used for vacuumizing, and fills phase change medium, and seals with Sealing pliers and welding.
9. separated phase transition heat exchanger according to claim 1 is characterized in that described condensate descending is provided with air bleeding valve, and tapping valve also as the fluid injection inlet, also is equipped with in the bottom of condensate descending in the air bleeding valve place simultaneously.
10. separated phase transition heat exchanger according to claim 7 is characterized in that, the fin form is sawtooth or corrugated form between described adjacent two flat tubes.
CN201010153985.3A 2010-04-23 2010-04-23 Split phase change heat exchanger Active CN101819000B (en)

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CN101819000B CN101819000B (en) 2012-03-07

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204425A (en) * 2011-05-16 2011-09-28 华为技术有限公司 Heat dissipation device and outdoor communication equipment
CN103327790A (en) * 2013-05-17 2013-09-25 华为技术有限公司 Heat radiating device and heat radiating system
CN103388855A (en) * 2012-05-11 2013-11-13 四川汇利实业有限公司 Air conversion system with sterilization effect
CN103808180A (en) * 2014-02-18 2014-05-21 无锡宏盛换热器制造股份有限公司 Heat pipe cooling device
CN103826423A (en) * 2011-05-16 2014-05-28 华为技术有限公司 Heat dissipation device and outdoor communication equipment
CN105682426A (en) * 2016-03-21 2016-06-15 何祉欣 Heat-exchanging apparatus suitable for communication base station machine cabinet
CN105737458A (en) * 2016-03-14 2016-07-06 深圳智焓热传科技有限公司 Natural cooling heat exchanger and heat exchange units thereof
CN105813437A (en) * 2016-03-21 2016-07-27 何祉欣 Sealed electric control cabinet heat exchange device for precision machine tool
CN106440896A (en) * 2016-12-01 2017-02-22 内蒙古创达热管节能设备有限公司 Low temperature heat pipe heat exchanger with separation type micro-channel and usage method thereof
CN107949241A (en) * 2017-11-16 2018-04-20 江门市信通通信工程有限公司 A kind of electric power equipment cabinet with heat sink
CN107990770A (en) * 2017-12-28 2018-05-04 江西鑫田车业有限公司 A kind of gravity type heat exchanger of 2X2 groups module
CN108050873A (en) * 2017-12-28 2018-05-18 江西鑫田车业有限公司 A kind of gravity type heat exchanger
CN108088293A (en) * 2017-12-28 2018-05-29 江西鑫田车业有限公司 A kind of gravity type heat exchanger of 1X1 groups module
CN108562181A (en) * 2017-12-28 2018-09-21 江西鑫田车业有限公司 A kind of gravity type heat exchanger
CN111964504A (en) * 2020-07-23 2020-11-20 西南交通大学 Detachable phase change energy storage device
EP4067799A1 (en) * 2021-03-31 2022-10-05 Huawei Digital Power Technologies Co., Ltd. Heat exchanger, cabinet, and communications base station

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758640A (en) * 1980-09-26 1982-04-08 Sumitomo Chem Co Ltd Hydroxycyclopentenone and its preparation
CN2549419Y (en) * 2002-06-03 2003-05-07 江苏中圣石化工程有限公司 Medium-high temperature separated heat pipe exchanger
CN1853851A (en) * 2005-04-29 2006-11-01 捷飞有限公司 Thermal pressing sealing method and structure of heat pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758640A (en) * 1980-09-26 1982-04-08 Sumitomo Chem Co Ltd Hydroxycyclopentenone and its preparation
CN2549419Y (en) * 2002-06-03 2003-05-07 江苏中圣石化工程有限公司 Medium-high temperature separated heat pipe exchanger
CN1853851A (en) * 2005-04-29 2006-11-01 捷飞有限公司 Thermal pressing sealing method and structure of heat pipe

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204425B (en) * 2011-05-16 2014-03-12 华为技术有限公司 Heat dissipation device and outdoor communication equipment
CN103826423A (en) * 2011-05-16 2014-05-28 华为技术有限公司 Heat dissipation device and outdoor communication equipment
CN102204425A (en) * 2011-05-16 2011-09-28 华为技术有限公司 Heat dissipation device and outdoor communication equipment
CN103826423B (en) * 2011-05-16 2017-06-20 华为技术有限公司 Heat abstractor and outdoor communication equipment
CN103388855A (en) * 2012-05-11 2013-11-13 四川汇利实业有限公司 Air conversion system with sterilization effect
CN103327790A (en) * 2013-05-17 2013-09-25 华为技术有限公司 Heat radiating device and heat radiating system
CN103327790B (en) * 2013-05-17 2016-06-22 华为技术有限公司 Heat abstractor and cooling system
CN103808180B (en) * 2014-02-18 2016-09-07 无锡宏盛换热器制造股份有限公司 heat pipe cooling device
CN103808180A (en) * 2014-02-18 2014-05-21 无锡宏盛换热器制造股份有限公司 Heat pipe cooling device
CN105737458A (en) * 2016-03-14 2016-07-06 深圳智焓热传科技有限公司 Natural cooling heat exchanger and heat exchange units thereof
CN105682426A (en) * 2016-03-21 2016-06-15 何祉欣 Heat-exchanging apparatus suitable for communication base station machine cabinet
CN105813437A (en) * 2016-03-21 2016-07-27 何祉欣 Sealed electric control cabinet heat exchange device for precision machine tool
CN105682426B (en) * 2016-03-21 2018-04-13 何祉欣 A kind of heat-exchanger rig suitable for communication base station cabinet
CN106440896A (en) * 2016-12-01 2017-02-22 内蒙古创达热管节能设备有限公司 Low temperature heat pipe heat exchanger with separation type micro-channel and usage method thereof
CN106440896B (en) * 2016-12-01 2019-03-19 内蒙古创达热管节能设备有限公司 A kind of separate type microchannel low temperature heat pipe heat exchanger and its application method
CN107949241A (en) * 2017-11-16 2018-04-20 江门市信通通信工程有限公司 A kind of electric power equipment cabinet with heat sink
CN108088293A (en) * 2017-12-28 2018-05-29 江西鑫田车业有限公司 A kind of gravity type heat exchanger of 1X1 groups module
CN108050873A (en) * 2017-12-28 2018-05-18 江西鑫田车业有限公司 A kind of gravity type heat exchanger
CN108562181A (en) * 2017-12-28 2018-09-21 江西鑫田车业有限公司 A kind of gravity type heat exchanger
CN107990770A (en) * 2017-12-28 2018-05-04 江西鑫田车业有限公司 A kind of gravity type heat exchanger of 2X2 groups module
CN111964504A (en) * 2020-07-23 2020-11-20 西南交通大学 Detachable phase change energy storage device
CN111964504B (en) * 2020-07-23 2024-03-12 西南交通大学 Detachable phase change energy storage device
EP4067799A1 (en) * 2021-03-31 2022-10-05 Huawei Digital Power Technologies Co., Ltd. Heat exchanger, cabinet, and communications base station
US11859917B2 (en) 2021-03-31 2024-01-02 Huawei Digital Power Technologies Co., Ltd. Heat exchanger, cabinet, and communications base station

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Assignee: Yangzhou Sinoma Machine Manufacturing Co., Ltd.

Assignor: Nanjing University of Technology

Contract record no.: 2012320000341

Denomination of invention: Split phase change heat exchanger

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