CN103075904A - Filling method of phase-change material in phase-change heat pipe - Google Patents
Filling method of phase-change material in phase-change heat pipe Download PDFInfo
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- CN103075904A CN103075904A CN201110331902XA CN201110331902A CN103075904A CN 103075904 A CN103075904 A CN 103075904A CN 201110331902X A CN201110331902X A CN 201110331902XA CN 201110331902 A CN201110331902 A CN 201110331902A CN 103075904 A CN103075904 A CN 103075904A
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Abstract
The invention discloses a filling method of a phase-change material in a phase-change heat pipe, and the phase-change material is octadecane. The filling method is characterized in that the temperature is greater than 90 DEG C when the phase-change material is filled. According to the filling method, the temperature is increased when the phase-change material is filled, the phase-change material is enabled to be in a liquid state, the filling speed of the phase-change material can be increased, and the filling quantity of the phase-change material can be accurately controlled, thereby eliminating adverse effects on the phase-change heat pipe due to over filling or less filling, so that the safety and the reliability of the phase-change heat pipe are guaranteed.
Description
Technical field
The present invention relates to a kind of satellite methods for filling of the phase-change material of phase transformation heat pipe.
Background technology
Along with the development of satellite technology and the continuous expansion of demand, from now on separated shutdown, load unit high-power, high heat flux get more and more, single general heat pipe can not satisfy the thermal control requirement fully, so the utilization of phase transformation heat pipe, can realize temperature control to heat-producing device more easily.
The phase transformation heat pipe is combined into by heat pipe and phase-change material, and it can utilize the good isothermal of heat pipe, can utilize again the good temperature uniformity of phase-change material when phase point temperature, reaches the equipment that is interrupted start is realized temperature controlled effect.When phase-change material uses, can experience heat absorption and melting, solidify the phase transition process of heat release, during the phase-change material volume can change.
Because the phase transformation heat pipe is to develop on ripe, the stable aluminium of technology-ammonia heat pipe basis, thus phase-change material fill characteristics and the difficult point that becomes in its production and processing, the performance that overcharges or fill less the phase transformation heat pipe of phase-change material all can exert an influence.
Filling of conventional phase-change material, as an example of 18 alkane example (its phase point temperature is 28 ℃), so temperature is generally 30 ℃ when filling, 18 alkane are that liquid is filled with in the phase transformation heat pipe phase transformation cavity; But after this be used for pre-buried phase transformation heat pipe and will experience 90 ℃ of high-temperature bakings of 4 hours, so the volume change of phase-change material (thermal coefficient of expansion) can have a strong impact on security reliability and the serviceability of phase transformation heat pipe: filling weight is excessive, when temperature is higher than phase transition temperature, phase-change material melts, volume increases, because the Incoercibility of liquid, shell can suffer the huge extruding force of liquid and explosion when high-temperature baking; Filling weight is too small, then can affect the heat absorption of phase transformation heat pipe, heat release ability, does not reach designing requirement.As shown in Figure 1, phase-change material all melts, and is full of cavity 1; As shown in Figure 2, phase-change material all solidifies, and cavity 1 leaves space 3.
Summary of the invention
Above-mentioned deficiency for prior art, technical problem to be solved by this invention is the methods for filling that proposes a kind of novel phase transformation heat pipe phase-change material, be intended to make things convenient for filling of phase-change material, more can accurately control the filling weight of phase-change material, to eliminate because overcharging or filling less adverse effect to the generation of phase transformation heat pipe.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of methods for filling of novel phase transformation heat pipe phase-change material, and phase-change material is 18 alkane, its innovative point is that the temperature when phase-change material fills is greater than 90 ℃.
With respect to prior art, the present invention is on the basis that tradition fills, and the temperature when the raising phase-change material fills reaches more than 90 ℃; Then guaranteeing to be filled with the phase transformation heat pipe under the safe prerequisite, so namely can reduce the fluid damping coefficient of phase-change material, improve the speed that fills of phase-change material; The density of phase-change material in the time of again can be according to 90 ℃ is accurately controlled the filling weight of phase-change material, thereby eliminates because overcharging or filling less the adverse effect that the phase transformation heat pipe is produced, the safety and reliability of assurance phase transformation heat pipe.
Description of drawings
Fig. 1 is that phase-change material fills schematic cross-section (phase-change material all melts, and is full of cavity).
Fig. 2 is that phase-change material fills schematic cross-section (phase-change material all solidifies, and cavity leaves the space).
Wherein: 1 is the phase-change material cavity; 2 are the phase transformation heat pipe; 3 is the space.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further set forth the present invention.These embodiment are interpreted as only being used for explanation the present invention and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modification falls into claim limited range of the present invention equally.
The methods for filling of the novel phase transformation heat pipe phase-change material that the preferred embodiment of the present invention provides, phase-change material is 18 alkane, on the basis of traditional methods for filling, the temperature when the raising phase-change material fills reaches more than 90 ℃.When filling, phase-change material has been liquid condition, and phase-change material can finish to fill after filling and expiring, and does not substantially have the phenomenon that overcharges or fill less, and experiences 90 ℃ of high-temperature bakings of 4 hours, also can not exert an influence to shell.
Present embodiment has applied in the actual production, and the filling weight of phase-change material can accurately be controlled in the production, and the phase transformation heat pipe of producing performance behind 90 ℃ of high-temperature bakings of experience satisfies index request, and the safety and reliability of phase transformation heat pipe more is guaranteed.
Claims (1)
1. the methods for filling of a phase transformation heat pipe phase-change material, phase-change material is 18 alkane, it is characterized in that, the temperature when phase-change material fills is greater than 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331902XA CN103075904A (en) | 2011-10-26 | 2011-10-26 | Filling method of phase-change material in phase-change heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331902XA CN103075904A (en) | 2011-10-26 | 2011-10-26 | Filling method of phase-change material in phase-change heat pipe |
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| Publication Number | Publication Date |
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| CN103075904A true CN103075904A (en) | 2013-05-01 |
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| CN201110331902XA Pending CN103075904A (en) | 2011-10-26 | 2011-10-26 | Filling method of phase-change material in phase-change heat pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167774A (en) * | 2017-05-18 | 2017-09-15 | 上海卫星工程研究所 | Bilateral regards high-power hyperpyrexia plane of flow phased array antenna heat control system |
| CN108601288A (en) * | 2018-03-12 | 2018-09-28 | 上海卫星工程研究所 | A kind of high-power matrix fin enhanced heat exchange phase transition heat sink |
Citations (7)
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| JPH03186746A (en) * | 1989-12-04 | 1991-08-14 | Miles Inc | Heater having phase change temperature controller |
| US20040186541A1 (en) * | 2003-03-21 | 2004-09-23 | Kimberly-Clark Worldwide, Inc. | Thermal therapy sleeve |
| CN1782018A (en) * | 2005-10-28 | 2006-06-07 | 北京工业大学 | Composite fixing phase change material of 79-83 deg.c and its preparing method |
| CN101045857A (en) * | 2006-03-30 | 2007-10-03 | 北京汇林盛达能源材料科技发展有限公司 | Preparation method of phase transformation material microcupsule |
| CN101353827A (en) * | 2007-07-25 | 2009-01-28 | 中国科学院化学研究所 | Multi-stage phase change micro-nano complex fiber, and preparation method and application thereof |
| CN101531885A (en) * | 2009-04-17 | 2009-09-16 | 清华大学深圳研究生院 | Environment-friendly inflaming retarding smoke-inhibiting shaping phase-changing energy storage material and preparing method thereof |
| CN201387265Y (en) * | 2009-01-20 | 2010-01-20 | 北京中视中科光电技术有限公司 | Heat abstractor |
-
2011
- 2011-10-26 CN CN201110331902XA patent/CN103075904A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03186746A (en) * | 1989-12-04 | 1991-08-14 | Miles Inc | Heater having phase change temperature controller |
| US20040186541A1 (en) * | 2003-03-21 | 2004-09-23 | Kimberly-Clark Worldwide, Inc. | Thermal therapy sleeve |
| CN1782018A (en) * | 2005-10-28 | 2006-06-07 | 北京工业大学 | Composite fixing phase change material of 79-83 deg.c and its preparing method |
| CN101045857A (en) * | 2006-03-30 | 2007-10-03 | 北京汇林盛达能源材料科技发展有限公司 | Preparation method of phase transformation material microcupsule |
| CN101353827A (en) * | 2007-07-25 | 2009-01-28 | 中国科学院化学研究所 | Multi-stage phase change micro-nano complex fiber, and preparation method and application thereof |
| CN201387265Y (en) * | 2009-01-20 | 2010-01-20 | 北京中视中科光电技术有限公司 | Heat abstractor |
| CN101531885A (en) * | 2009-04-17 | 2009-09-16 | 清华大学深圳研究生院 | Environment-friendly inflaming retarding smoke-inhibiting shaping phase-changing energy storage material and preparing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167774A (en) * | 2017-05-18 | 2017-09-15 | 上海卫星工程研究所 | Bilateral regards high-power hyperpyrexia plane of flow phased array antenna heat control system |
| CN108601288A (en) * | 2018-03-12 | 2018-09-28 | 上海卫星工程研究所 | A kind of high-power matrix fin enhanced heat exchange phase transition heat sink |
| CN108601288B (en) * | 2018-03-12 | 2020-10-09 | 上海卫星工程研究所 | High-power matrix fin enhanced heat exchange phase change heat sink |
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Application publication date: 20130501 |