JPS61153386A - Manufacture of heat pipe - Google Patents
Manufacture of heat pipeInfo
- Publication number
- JPS61153386A JPS61153386A JP27556884A JP27556884A JPS61153386A JP S61153386 A JPS61153386 A JP S61153386A JP 27556884 A JP27556884 A JP 27556884A JP 27556884 A JP27556884 A JP 27556884A JP S61153386 A JPS61153386 A JP S61153386A
- Authority
- JP
- Japan
- Prior art keywords
- heat pipe
- tubular body
- hollow tubular
- working fluid
- pouring spout
- Prior art date
- 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.)
- Pending
Links
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
- F28D15/0283—Means for filling or sealing heat pipes
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)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
０） 産業上の利用分野
この発明は真空ポンプ等の複雑な装置を使用することな
く、ヒートパイプ用中空管体よりの脱ガスを行ない、作
動液を封入してヒートパイプを製造する方法に関するっ
（ロ） 従来の技術
ヒートパイプ内部に不凝縮ガスがあると、この不凝縮ガ
スが作動液の気相流にて凝縮部へ押しやられ、ヒートパ
イプ内部の気圧、温度で決まる一定体積を占めるため、
その分だけ凝縮面積が減少する。[Detailed Description of the Invention] 0) Industrial Field of Application This invention degass a hollow tube body for a heat pipe without using a complicated device such as a vacuum pump, and encloses a working fluid. Related to the method of manufacturing a heat pipe (b) Conventional technology When there is non-condensable gas inside the heat pipe, this non-condensable gas is pushed to the condensing part by the gas phase flow of the working fluid, and the air pressure inside the heat pipe decreases. Because it occupies a constant volume determined by temperature,
The condensation area decreases by that amount.
そこで、従来より、作動液を注入したヒートパイプ用中
空管体を加熱し、作動液を所定量まで蒸発、減少させる
ことにより不凝縮ガスを排出させ、しかる後、注入口を
気密に封止するとい５ベ一キング方式が利用されている
（例えば特公昭５６−２４８６８号公報および特公昭５
７−６１１５８号公報参照）。Therefore, in the past, a hollow heat pipe body filled with working fluid was heated, the working fluid was evaporated and reduced to a predetermined amount, and the non-condensable gas was discharged, and then the injection port was hermetically sealed. Then, the 5-baking method is used (for example, Japanese Patent Publication No. 56-24868 and Japanese Patent Publication No. 56-24868).
7-61158).
ところが、この方式のヒートパイプの製造方法は作動液
の突沸と同時に外部の空気がヒートパイプ用中空管体内
に入るのを阻止するため、パルプを使用しなければなら
ず、複雑なパルプ操作が必要になるなど、生産コストが
高くなる欠点があった。However, this method of manufacturing heat pipes requires the use of pulp in order to prevent outside air from entering the heat pipe hollow tube at the same time as the working fluid bumps, which requires complicated pulp operations. This had the disadvantage of increasing production costs.
（ハ） 発明が解決しようとする問題点この発明の課題
は真空設備を使用せず、ベーキング方式で不凝縮ガスを
排出させる際、パルプを使用しないで空気がヒートパイ
プ用中空管体に入るのを阻止することである。(c) Problems to be Solved by the Invention The problem to be solved by the invention is to solve the problem of air entering a hollow tube body for a heat pipe without using pulp when discharging non-condensable gas by baking method without using vacuum equipment. The purpose is to prevent
に） 問題点を解決するための手段
上記の課題はこの発明によれば、一端に注入口を有し、
他端を閉塞したヒートパイプ用中空管体内に作動液を注
入し、ついでヒートパイプ用中空管体を作動液の沸点以
上に加熱し、作動液の一部を不凝縮ガスと一緒に排出さ
せた後、注入口を気密に封止するヒートパイプの製造方
法において、ヒートパイプ用中空管体の加熱時に注入口
から吐出されるガスを減圧して大気へ放出させることに
より解決される。According to the present invention, the above problem is solved by having an injection port at one end,
A working fluid is injected into the hollow tube for the heat pipe with the other end closed, then the hollow tube for the heat pipe is heated above the boiling point of the working fluid, and a portion of the working fluid is discharged together with non-condensable gas. In a method for manufacturing a heat pipe in which the injection port is hermetically sealed after the heat pipe is heated, the problem is solved by reducing the pressure of the gas discharged from the injection port when heating the hollow tube body for the heat pipe and releasing it to the atmosphere.
（ホ）作用
作動液が注入されたヒートパイプ用中空管体を加熱する
と、作動液が沸騰し、その蒸気が不凝縮ガスと一緒に注
入口から排出される。このとき、注入口から吐出される
ガスを減圧して大気へ放出させることにより、ヒートパ
イプ用中空管体内外の圧力差が保持されるため、注入口
からヒートパイプ用中空管体内へ空気が流入しないよう
にできる。このようにして、作動液の一部を不凝縮ガス
と一緒に排出させた後、注入口を気密に封止することに
より、ヒートパイプが完成する。(E) Working When the hollow tube for a heat pipe into which the working fluid is injected is heated, the working fluid boils and its vapor is discharged from the injection port together with the non-condensable gas. At this time, by reducing the pressure of the gas discharged from the inlet and releasing it into the atmosphere, the pressure difference between the inside and outside of the hollow tube for the heat pipe is maintained, so that the air from the inlet into the hollow tube for the heat pipe is maintained. can be prevented from entering. In this manner, after a portion of the working fluid is discharged together with the non-condensable gas, the inlet is hermetically sealed, thereby completing the heat pipe.
（へ）実施例 以下、この発明を図面に示す実施例について説明する。(f) Example Hereinafter, embodiments of the present invention shown in the drawings will be described.
図において、（１）は一端に絞り加工された注入管部（
２）（外径５■）を有し、他端を閉塞したヒートパイプ
用中空管体であり、リン脱酸鋼継目無管（外径９．５２
ｍｍ、長さ３００ｍ）を使用している。In the figure, (1) is the injection tube section (
2) (outer diameter 5 mm), the other end is closed, and the phosphor deoxidized steel seamless tube (outer diameter 9.52
mm, length 300m).
（３）は接続チー−プ（４）を介して注入口（５）に接
続されるキャピラリチ−ブであり、外径３ｍｍ、内径１
鴎、長さ２００朋の鋼管を使用している。接続チー−プ
（４）は両端部の口径を注入管部（２）とキャピラリチ
−プ（３）とに適合させた塩化ビニル、フッ素系樹脂等
の樹脂チー−プを使用している。(3) is a capillary tube connected to the injection port (5) via the connecting pipe (4), and has an outer diameter of 3 mm and an inner diameter of 1 mm.
A 200 mm long steel pipe is used. The connecting cheep (4) is made of resin such as vinyl chloride or fluororesin, with diameters at both ends adapted to those of the injection tube (2) and the capillary cheep (3).
まず、所定量より多めの作動液を精密シリンダー（図示
せず）で正確に測定し、注入口（５）からヒートパイプ
用中空管体（１）内へ注入する。次Ｋ、ヒートパイプ用
中空管体（１）の注入口（５）に接続チーープ（４）を
介してキャピラリチー−ブ（３）を接続する。First, a larger amount of working fluid than a predetermined amount is accurately measured using a precision cylinder (not shown), and injected into the heat pipe hollow tube body (1) from the injection port (5). Next, connect the capillary tube (3) to the injection port (5) of the hollow tube for heat pipe (1) via the connecting tube (4).
次に、作動液を注入し、キャピラリチー−プ（３）が接
続されたヒートパイプ用中空管体（１）の閉塞端部側を
下向きにし、かつ作動液の沸点よりも高温の加熱槽（図
示せず）に浸漬して加熱する。このとき、ヒートパイプ
用中空管体（１）は作動液が沸騰して蒸発し、内部圧力
が高まるため、作動液の蒸気はヒートパイプ用中空管体
（１）内の不凝縮ガスと一緒に、キャビラリチー−ブ（
３）を通って大気中へ放出される。このようにして、ヒ
ートパイプ用中空管体（１）を所定時間加熱し、余分な
作動液を排出させた後、注入管部（２）を加圧して押し
潰し、注入口（５）を溶接、ろう付けなどにより気密に
封止する。Next, the working fluid is injected, the closed end side of the hollow heat pipe body (1) connected to the capillary cheep (3) is turned downward, and the heating tank is heated to a temperature higher than the boiling point of the working fluid. (not shown) and heat. At this time, the working fluid in the heat pipe hollow tube (1) boils and evaporates, increasing the internal pressure, so that the vapor of the working fluid becomes non-condensable gas in the heat pipe hollow tube (1). Together, cabilage team (
3) and is released into the atmosphere. In this way, after heating the hollow heat pipe body (1) for a predetermined period of time and draining excess working fluid, the injection pipe part (2) is pressurized and crushed, and the injection port (5) is closed. Airtightly seal by welding, brazing, etc.
本実施例によれば、ヒートパイプ用中空管体（１）内に
作動液を注入し、ベーキングを行なう際、注入口（５）
にキャピラリチー−プ（３）を接続し、注入口（５）か
ら吐出されるガスを減圧して大気へ放出させるようにし
たので、ヒートパイプ用中空管体（１）の内部圧力と大
気圧との圧力差をキャピラリチー一フ（３）にて保持す
ることができる。このため、従来のように、作動液の突
沸と同時に、空気がヒートパイプ用中空管体（１）内に
入ることはなく、空気め′流入を阻止しながら注入口（
５）を気密に封止することができる。また、接続チー−
ブ（４）およびキャピラリチ為−プ（３）は繰返し使用
することができる。According to this embodiment, when injecting the working fluid into the hollow heat pipe body (1) and performing baking, the injection port (5)
Since the capillary cheep (3) is connected to the inlet and the gas discharged from the inlet (5) is depressurized and released to the atmosphere, the internal pressure of the hollow heat pipe body (1) and the large The pressure difference with the atmospheric pressure can be maintained by the capillary chief (3). Therefore, air does not enter the heat pipe hollow body (1) at the same time as the working fluid bumps, unlike in the past, and the inlet (1) is prevented from flowing into the heat pipe.
5) can be hermetically sealed. Also, the connection team
The tube (4) and the capillary tube (3) can be used repeatedly.
なお、本発明で使用する作動液は常温で沸騰しない高沸
点のものが好ましく、例えば純水や塩水などを使用する
と良い。The working fluid used in the present invention is preferably one with a high boiling point that does not boil at room temperature; for example, pure water or salt water may be used.
（ト） 発明の効果
この発明は以上のように構成されているので、真空設備
を使用せず、ベーキング方式で不凝縮ガスを排出させる
際、ヒートパイプ用中空管体の内外の圧力差が維持され
１．空気がヒートパイプ用中空管体に流入するのを阻止
できることＫなり、バルブやバルブ操作が不要になるな
ど、安価で、信頼性の高いヒートパイプを大量に製造で
きるものである。(G) Effects of the Invention Since the present invention is configured as described above, when the non-condensable gas is discharged by baking method without using vacuum equipment, the pressure difference between the inside and outside of the hollow tube body for the heat pipe is reduced. Maintained 1. Since it is possible to prevent air from flowing into the hollow tube body for heat pipes, and there is no need for valves or valve operations, it is possible to mass-produce inexpensive and highly reliable heat pipes.
図はヒートパイプ用中空管体の加熱時の状態を示す正面
図である。
（１）・・・ヒートパイプ用中空管体、 （訃・・キャ
ピラリーチ・、−ブ、 （５）・・・注入口。The figure is a front view showing the state of the hollow tube body for a heat pipe when it is heated. (1)...Hollow tube body for heat pipe, (capillary reach), (5)...Inlet.
Claims (1)
プ用中空管体内に作動液を注入し、ついでヒートパイプ
用中空管体を作動液の沸点以上に加熱し、作動液の一部
を不凝縮ガスと一緒に排出させた後、注入口を気密に封
止するヒートパイプの製造方法において、ヒートパイプ
用中空管体の加熱時に注入口から吐出されるガスを減圧
して大気へ放出させることを特徴とするヒートパイプの
製造方法。(1) Inject the working fluid into a hollow tube for a heat pipe that has an injection port at one end and close the other end, then heat the hollow tube for a heat pipe above the boiling point of the working fluid. In a heat pipe manufacturing method in which a part of the gas is discharged together with non-condensable gas and then the inlet is hermetically sealed, the gas discharged from the inlet is depressurized when the hollow tube body for the heat pipe is heated. A method for manufacturing a heat pipe, characterized in that the heat pipe is discharged into the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27556884A JPS61153386A (en) | 1984-12-25 | 1984-12-25 | Manufacture of heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27556884A JPS61153386A (en) | 1984-12-25 | 1984-12-25 | Manufacture of heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61153386A true JPS61153386A (en) | 1986-07-12 |
Family
ID=17557259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27556884A Pending JPS61153386A (en) | 1984-12-25 | 1984-12-25 | Manufacture of heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153386A (en) |
-
1984
- 1984-12-25 JP JP27556884A patent/JPS61153386A/en active Pending
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