CN101819000B - Split phase change heat exchanger - Google Patents
Split phase change heat exchanger Download PDFInfo
- Publication number
- CN101819000B CN101819000B CN201010153985.3A CN201010153985A CN101819000B CN 101819000 B CN101819000 B CN 101819000B CN 201010153985 A CN201010153985 A CN 201010153985A CN 101819000 B CN101819000 B CN 101819000B
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- China
- Prior art keywords
- heat exchanger
- house steward
- condenser
- phase transition
- fin
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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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- 230000008859 change Effects 0.000 title claims abstract description 10
- 229910000679 solder Inorganic materials 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims description 29
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 abstract 2
- 230000010412 perfusion Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-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
- F28D15/02—Heat-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
- F28D15/0266—Heat-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
Landscapes
- 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 split phase 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
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 through in the inhalation machine of import air channel, blow on the components and parts that need to cool off; After the heat exchange; Hot-air is discharged outside the machine again, briefly be exactly inside and outside the machine cold and hot air directly exchange cooling, its advantage be simple, reliable, expense is low; The direct access arrangement of air that yet maximum shortcoming is the open circuit cooling not to be purified is inner; Grit on the passage constantly gathers and increases, make on the air duct drag characteristic 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 when using as the rack heat exchanger complex structure, manufacturing and cost high, 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 can thermal source and low-temperature receiver separation 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 realize: a kind of separated phase transition heat exchanger through following technical scheme; It is characterized in that; Said separated phase transition heat exchanger is made up of two flat tubular fin core, vapor uptake and condensate descending, and said flat tubular fin core two ends are respectively equipped with afflux house steward and lower header house steward, has some equidistance 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, and each flat tube inside is furnished with fin with last lower header house steward; Insert fin between adjacent two flat tubes; An afflux house steward of separated phase transition heat exchanger is provided with evacuation liquid-filling and seals adapter, and flat tubular fin core adopts integral braze-welded forming; A said flat tubular fin core is used as condenser as evaporimeter, another flat tubular fin core; The said said upward afflux house steward who goes up afflux house steward and condenser of evaporimeter is connected through said vapor uptake; The said lower header house steward of evaporimeter and the said lower header house steward of condenser are connected through said condensate descending; Evaporimeter and condenser and vapor uptake and condensate descending are through 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, and the steam of generation arrives condenser through vapor uptake, discharges latent heat and condenses into liquid because the gravity effect flows to the lower header house steward; Be back in the evaporimeter through condensate descending, operation so moves in circles again.
Said 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 said evaporimeter is walked cold gas in the fin between two flat tubes of said condenser.
In evaporimeter and condenser, be filled with phase change medium, said phase change medium comprises water, methyl alcohol, ethanol, freon and liquefied ammonia etc.
The material of said 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 further improvement of the present invention; In the casing that cover plate formed around evaporimeter and condenser lay in, the dividing plate in the middle of the casing separates formation outer circulation and two air channels of interior circulation about with evaporimeter and condenser; Circulated air import in the front shroud right upper portion is provided with; The circulated air outlet was provided with the outer circulation wind inlet in the back shroud left upper portion in the front shroud lower right side was provided with, and bottom, back shroud left side is provided with the outlet of outer circulation wind.
As further improvement of the present invention, the inner fin form of said flat tube 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 further improvement of the present invention, on said condensate descending, be provided with air bleeding valve, 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 further improvement of the present invention, the material of the fin between said 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 sketch map of flat tubular fin core
Fig. 2 is the partial structurtes sketch map of flat tubular fin core flat tube
Fig. 3 is the partial structurtes sketch map of flat tubular fin core fin
Fig. 4 is a flat tubular fin core overall structure sketch map
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 sketch map
Fig. 8 is an embodiment of the invention separated phase transition heat exchanger casing outside sketch map
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified:
Be provided with afflux house steward 101 with reference to accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4 flat tubular fin core two ends, have some equidistance 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, insertion fin 104 between two flat tubes; Fin 104 forms are forms such as sawtooth, 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 is stacked with fin 104 intervals, 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 through 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 separated phase transition 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 through 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 through 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 through 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 (9)
1. a separated phase transition heat exchanger is characterized in that, said separated phase transition heat exchanger is made up of two flat tubular fin core, vapor uptake and condensate descending; Said flat tubular fin core two ends are respectively equipped with afflux house steward and lower header house steward; Have some equidistance rectangular openings on last afflux house steward and the lower header 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 second fin between adjacent two flat tubes; The last afflux house steward of separated phase transition heat exchanger or lower header house steward are provided with evacuation liquid-filling and seal adapter, and flat tubular fin core adopts integral braze-welded forming; A said flat tubular fin core is as evaporimeter, and another said flat tubular fin core is as condenser; The said said upward afflux house steward who goes up afflux house steward and condenser of evaporimeter is connected through said vapor uptake; The said lower header house steward of evaporimeter and the said lower header house steward of condenser are connected through said condensate descending; Evaporimeter and condenser and vapor uptake and condensate descending are through 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;
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; Be provided with the outer circulation wind inlet in the back shroud left upper portion, bottom, back shroud left side is provided with the outlet of outer circulation wind.
2. separated phase transition heat exchanger according to claim 1 is characterized in that, said upper and lower afflux house steward is pipe, semicircle pipe or rectangular tube.
3. separated phase transition heat exchanger according to claim 1 is characterized in that, in evaporimeter and condenser, is filled with phase change medium, and said phase change medium comprises water, methyl alcohol, ethanol, freon and liquefied ammonia.
4. separated phase transition heat exchanger according to claim 1 is characterized in that, said upward afflux house steward and lower header house steward are pipe, semicircle pipe or rectangular tube, have some rectangular channels above.
5. according to the said separated phase transition heat exchanger of claim 1, it is characterized in that the fin that said flat tube inside is furnished with is porous shape, saw tooth fin.
6. separated phase transition heat exchanger according to claim 1 is characterized in that, second fin material between said adjacent two flat tubes is the composite board of the sandwich style of calendering one deck solder on mother metal two-sided.
7. separated phase transition heat exchanger according to claim 1 is characterized in that, said evacuation liquid-filling seals to take over and is used for vacuumizing, and fills phase change medium, and seals with Sealing pliers and welding.
8. separated phase transition heat exchanger according to claim 1 is characterized in that said 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.
9. separated phase transition heat exchanger according to claim 6 is characterized in that, the second fin form is sawtooth or corrugated form between said adjacent two flat tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153985.3A CN101819000B (en) | 2010-04-23 | 2010-04-23 | Split phase change heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153985.3A CN101819000B (en) | 2010-04-23 | 2010-04-23 | Split phase change heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101819000A CN101819000A (en) | 2010-09-01 |
| CN101819000B true CN101819000B (en) | 2012-03-07 |
Family
ID=42654188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010153985.3A Active CN101819000B (en) | 2010-04-23 | 2010-04-23 | Split phase change heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101819000B (en) |
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| 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 |
| 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 |
| 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 |
| 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 |
| CN105813437B (en) * | 2016-03-21 | 2018-01-09 | 何祉欣 | A kind of sealed electrical control cubicles heat-exchanger rig of precision machine tool class |
| CN105682426B (en) * | 2016-03-21 | 2018-04-13 | 何祉欣 | A kind of heat-exchanger rig suitable for communication base station cabinet |
| 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 |
| 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 |
| 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 |
| CN111964504B (en) * | 2020-07-23 | 2024-03-12 | 西南交通大学 | Detachable phase change energy storage device |
| CN114302608B (en) | 2021-03-31 | 2024-01-30 | 华为数字能源技术有限公司 | Heat exchanger, cabinet and communication base station |
Family Cites Families (3)
| 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 |
| CN100484697C (en) * | 2005-04-29 | 2009-05-06 | 捷飞有限公司 | Pressing sealing method and structure of heat pipe |
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2010
- 2010-04-23 CN CN201010153985.3A patent/CN101819000B/en active Active
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| CN101819000A (en) | 2010-09-01 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yangzhou Sinoma Machine Manufacturing Co., Ltd. Assignor: Nanjing University of Technology Contract record no.: 2012320000341 Denomination of invention: Split phase change heat exchanger Granted publication date: 20120307 License type: Exclusive License Open date: 20100901 Record date: 20120329 |
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Assignee: Yangzhou Sinoma Machine Manufacturing Co., Ltd. Assignor: Nanjing University of Technology Contract record no.: 2012320000341 Date of cancellation: 20140115 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |