CN1290955A - Heat-storage travelling wave tube - Google Patents
Heat-storage travelling wave tube Download PDFInfo
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- CN1290955A CN1290955A CN 00125887 CN00125887A CN1290955A CN 1290955 A CN1290955 A CN 1290955A CN 00125887 CN00125887 CN 00125887 CN 00125887 A CN00125887 A CN 00125887A CN 1290955 A CN1290955 A CN 1290955A
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- radiator
- heat
- phase
- change material
- wave tube
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Abstract
The heat-storage traveling wave tube is in fully enclosed heat radiator structure. In has phase change material filled inside the cavity separated by winged pins, lower plane contacting closely with heat conducting underplate, outside heat radiating sheets, and collector assembly installed in middle cylindrical cavity. The present invention uses the phase change material to absorb most of heat and this solves the problem of heat dissipation in special condition of strict size limitation. The traveling wave tube may be used in radar of airplane, and in last stage power amplifier of microwave system in other fields.
Description
The present invention relates to a kind of heat-storage travelling wave tube, belong to microwave electric vacuum technology field.
Travelling wave tube is widely used in national defence key projects such as radar, electronic countermeasures and communication as the final stage power amplification of microwave system.High-temperature working performance is the important performance indexes of travelling wave tube, also is one of key index that directly influences its q﹠r." travelling wave tube current situation and development " (Wang Bin etc., " electronic product reliability and environmental test ", 1998 the 2nd phase P45-49) analyzed existing travelling wave tube applicable cases of China and existing problems, and the tackling key problem that has proposed to carry out the travelling wave tube heat dissipation technology is vital.At present, the concrete scheme of relevant travelling wave tube cooling system mainly contains both at home and abroad: liquid cools, air blast cooling etc.Force the liquid cooling mode as what introduce in " thermal design of high-power transmitter travelling wave tube cooling system " (" electronic reconnaissance interference " the 2nd phase in 1997), adopt the installation base plate of cold drawing, again as the radiator of travelling wave tube as travelling wave tube.The heat of travelling wave tube reaches cold drawing, pass to mobile cooling fluid by cold drawing again and be once cooling, and by being heated of flowing out of cold drawing flow of liquid through heat exchanger, by the forced air cooling of blower fan, it is the secondary cooling that the heat of liquid is taken away.In these traditional heat-dissipating modes, no matter be air-cooled, liquid cooling or other modes, generally all systems such as corresponding heat exchanger, blower fan to be arranged, shared volume is quite huge.And for some special occasions, as, under the situation of the strict restriction of bulk such as airborne, these traditional types of cooling are difficult to meet the demands, and must seek a kind of more effective new heat dissipation technology.
The objective of the invention is to the above-mentioned deficiency at prior art, a kind of new heat-storage travelling wave tube is provided, make the radiator volume little, radiating efficiency is higher, can adapt to the bulk restriction requirement of strict workplace especially.
For realizing such purpose, adopted totally-enclosed radiator in the technical scheme of the present invention, and the technology of employing perfusion phase-change material, a kind of phase-change material of heat absorption when undergoing phase transition is poured into wherein, a large amount of heats that collector produces when working to absorb travelling wave tube make the power output of homogeneous tube obviously fall with gaining not have.
The present invention includes totally enclosed type radiator, waveguide and input and exit, totally-enclosed radiator adopts aluminum material, form by upper and lower two parts, last radiator is a totally enclosed type, inside is the cavity that multiple wing shape fin is isolated, and in order to the can phase-change material, the lower plane and the conductive sole plate of following radiator fit tightly, the same numerous fin, the installation collector assembly in the middle circle column cavity that upper and lower radiator forms of being furnished with in the outside with last radiator.
Collector produces a large amount of heats in the travelling wave tube course of work, be directly passed to upper and lower radiator.Reasonably design radiator, a collector heat part is absorbed by the phase-change material in the last lumen of radiator, a part is then dispelled the heat to conductive sole plate by heat sink down, thereby the collector temperature is remained in the scope that the travelling wave tube operate as normal allowed.
Most heat of collector is absorbed by phase-change material, thereby to select suitable phase-change material for use be vital.The phase-change material that the present invention selects for use is a G type phase-change material, is that a kind of fusing point is 73 ℃ a macromolecular material, and its key technical indexes is as follows:
73 ℃ of boiling point＞170 of fusing point ℃
Fusion enthalpy 57 card/grams are consolidated → coefficient of volume expansion-13% when liquid changes
20 ℃ of C of specific heat
p=0.3692 card/gram degree
50 ℃ of C
p=0.4086 card/gram degree
80 ℃ of C
p=0.4853 card/gram degree
Useful life＞1000 time
Fail safe: nontoxic, non-corrosiveness Acidity of Aikalinity: pH value is neutral
Lower temperature resistance :-200 ℃ any chemical change and phase transformation do not take place.
The phase-change material that adopts because of the present invention is the powdery crystal, so could inject in the cavity of radiator after the palpus heating changes liquid phase into.The little screw of two M5 is reserved in the outside of totally-enclosed radiator, and phase-change material injects by these two little screws.
The technology of the perfusion phase-change material that the present invention adopts is:
1, takes by weighing powdery phase-change material with the corresponding weight of last radiator cavity volume, contain in beaker, place again on the enamel tray in the Electric heat oven.
2, radiator is lain on the enamel tray, two screws all up.
3, connect the Electric heat oven power supply, heat up gradually, make the radiators heat temperature be controlled at 120 ℃ ± 5 ℃.The temperature of phase-change material progressively raises in the beaker, and when being higher than its phase transition temperature, melting transition is a liquid phase gradually.After most of phase-change material changes liquid phase into, can slowly inject its inner chamber by outside two screws of reserving of radiator.Treat that phase-change material melts fully and irritated the back and cut off the baking oven power supply, slightly after cooling, radiator is taken out from baking oven, seal two screws with nut, seal washer during attitude while hot, use air-cooled then or the natural cooling radiator, phase-change material is frozen into crystalloid gradually.So far, instillation process finishes.
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail.
Fig. 1 is overall structure of the present invention and radiator installation position schematic diagram.
As shown in the figure, the present invention includes totally enclosed type radiator 1, waveguide 2, radiator 1 is installed in a side of waveguide 2, and the other end of travelling wave tube is furnished with input 3 and exit 4.
Fig. 2 is totally enclosed type heat spreader structures schematic diagram of the present invention.
As shown in the figure, the totally enclosed type radiator is made up of upper and lower two parts, and upper radiator is totally enclosed type, Inside is the cavity of multiple wing shape fin 5 isolation, can phase-change material 6 in the cavity, the lower plane of lower radiator Fit tightly with conductive sole plate 8, the radiator outside is furnished with numerous fin 9, upper and lower radiator shape Collector assembly 7 is installed in the middle circle column cavity that becomes.
Collector assembly 7 produces a large amount of heats in the travelling wave tube course of work, be directly passed to upper and lower radiator.Wherein a part of heat is absorbed by the phase-change material in the last lumen of radiator 6, and a part then gives conductive sole plate 8 heat radiations by heat sink down, thereby the collector temperature is remained in the scope that the travelling wave tube operate as normal allowed.
The present invention has adopted the totally enclosed type heat spreader structures, utilize the phase-change material of the inner can of radiator to absorb most of heat, efficiently solve the heat dissipation problem of the travelling wave tube of under the specific (special) requirements condition of bulk restriction strictness especially, working, thereby make heat-storage travelling wave tube can be used for the airborne radar of type aircraft, and the final stage power amplification that can be used as microwave system in other national defence fields and field such as medical treatment, bioengineering be used widely.
Claims (3)
1, a kind of heat-storage travelling wave tube, comprise radiator (1), waveguide (2) and input (3) and exit (4), it is characterized in that adopting the totally enclosed type heat spreader structures, radiator (1) is made up of upper and lower two parts, last radiator is a totally enclosed type, inside is the cavity that multiple wing shape fin (5) is isolated, can phase-change material (6) in the cavity, the lower plane of following radiator and conductive sole plate (8) fit tightly, the radiator outside is furnished with fin (9), and collector assembly (7) is installed in the middle circle column cavity that upper and lower radiator forms.
2,, it is characterized in that said phase-change material (6) employing fusing point is 73 ℃ a G type polymeric phase change material as the said heat-storage travelling wave tube of claim 1.
3, as the filling process of phase-change material in the said heat-storage travelling wave tube radiator of claim 1 (1), it is characterized in that getting the weighing of powdery phase-change material, contain in beaker, place again on the enamel tray in the Electric heat oven, radiator is lain on the enamel tray, reserve screw all up for two; Connect the Electric heat oven power supply, heat up gradually, make the radiators heat temperature be controlled at 120 ℃ ± 5 ℃, the phase-change material that will change liquid phase into slowly injects its inner chamber by outside two screws of reserving of radiator, irritated the back and cut off the baking oven power supply, slightly after cooling, radiator has been taken out from baking oven, seal two screws with nut, seal washer during attitude while hot, cooling radiator makes phase-change material be frozen into crystalloid gradually then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125887 CN1290955A (en) | 2000-10-31 | 2000-10-31 | Heat-storage travelling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125887 CN1290955A (en) | 2000-10-31 | 2000-10-31 | Heat-storage travelling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1290955A true CN1290955A (en) | 2001-04-11 |
Family
ID=4591669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00125887 Withdrawn CN1290955A (en) | 2000-10-31 | 2000-10-31 | Heat-storage travelling wave tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN1290955A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353590A (en) * | 2013-07-06 | 2013-10-16 | 西安雷通科技有限责任公司 | Hermetically-sealed integrated radar |
| CN103429048A (en) * | 2012-05-22 | 2013-12-04 | 现代摩比斯株式会社 | Gasket mounted between power modules for separating coolant passage |
| CN103857264A (en) * | 2012-11-30 | 2014-06-11 | 通用电气航空系统有限责任公司 | Phase change heat sink for transient thermal management |
| CN106169403A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN106169404A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN106169402A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN111556691A (en) * | 2020-04-24 | 2020-08-18 | 中国电子科技集团公司第二十九研究所 | 3D flow channel cooling device and method for MPM |
-
2000
- 2000-10-31 CN CN 00125887 patent/CN1290955A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429048A (en) * | 2012-05-22 | 2013-12-04 | 现代摩比斯株式会社 | Gasket mounted between power modules for separating coolant passage |
| CN103857264A (en) * | 2012-11-30 | 2014-06-11 | 通用电气航空系统有限责任公司 | Phase change heat sink for transient thermal management |
| CN103857264B (en) * | 2012-11-30 | 2017-09-15 | 通用电气航空系统有限责任公司 | Phase-change heat sink for transient state heat management |
| CN103353590A (en) * | 2013-07-06 | 2013-10-16 | 西安雷通科技有限责任公司 | Hermetically-sealed integrated radar |
| CN103353590B (en) * | 2013-07-06 | 2015-12-02 | 西安雷通科技有限责任公司 | A kind of hermetically sealed Integrative Radar |
| CN106169403A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN106169404A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN106169402A (en) * | 2016-08-30 | 2016-11-30 | 成都国光电气股份有限公司 | Travelling-wave tube heat storage facilities |
| CN111556691A (en) * | 2020-04-24 | 2020-08-18 | 中国电子科技集团公司第二十九研究所 | 3D flow channel cooling device and method for MPM |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |