JPH059719B2 - - Google Patents
Info
- Publication number
- JPH059719B2 JPH059719B2 JP59129167A JP12916784A JPH059719B2 JP H059719 B2 JPH059719 B2 JP H059719B2 JP 59129167 A JP59129167 A JP 59129167A JP 12916784 A JP12916784 A JP 12916784A JP H059719 B2 JPH059719 B2 JP H059719B2
- Authority
- JP
- Japan
- Prior art keywords
- iron
- pipe
- heat pipe
- oxide film
- pipes
- 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.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 229910052742 iron Inorganic materials 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 3
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 claims description 3
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 3
- 229960002218 sodium chlorite Drugs 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 238000005536 corrosion prevention Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- -1 alcohol Chemical class 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はヒートパイプ特に鉄系のパイプと水を
作動液とするヒートパイプの内面を酸化処理によ
り防食したヒートパイプの処理方法に関するもの
である。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method for treating heat pipes, particularly iron-based pipes and heat pipes whose inner surfaces are anti-corrosive by oxidation treatment. .
（従来の技術）
近時熱の有効利用を図る一つの手段としてヒー
トパイプが生み出された。(Prior Art) Heat pipes have recently been created as a means of effectively utilizing heat.
このヒートパイプの代表的なものは、アルコー
ルの如き有機系の化合物を用いるものがほとんど
であり、一部に水を用いるものがある。 Most typical heat pipes use organic compounds such as alcohol, and some use water.
又、ヒートパイプ材料としては、銅系のものが
ほとんどで、鉄系のものが一部に使用されていた
だけである。 Furthermore, most of the heat pipe materials were copper-based, with only some iron-based materials being used.
（発明が解決しようとする問題点）
従来の有機系の溶剤を作動液とするヒートパイ
プに於ては、そのほとんどが200℃程度の温度で
分解するために、これ以上の温度で使用されず、
水を作動液とするヒートパイプは常温から300℃
程度の高温でも安定して用い得るものであるが、
パイプ材料について問題なしとしなかつた。(Problem to be solved by the invention) In conventional heat pipes that use organic solvents as their working fluid, most of them decompose at temperatures around 200°C, so they cannot be used at temperatures higher than this. ,
Heat pipes that use water as the working fluid can be heated from room temperature to 300℃.
Although it can be used stably even at moderately high temperatures,
There was no problem with the pipe material.
即ち、従来から用いられている銅系ヒートパイ
プでは水の高い蒸気圧のために破壊するおそれが
大きく耐圧性が乏しい。そこで鉄又は銅など鉄系
材料のパイプを利用したいが、水と鉄系材料との
間の接触反応により、ヒートパイプを長時間作動
すると水素ガスの発生がみられ、この結果パイプ
の腐食が進行し、逐には破壊するに至る。 That is, conventionally used copper-based heat pipes have a high risk of being destroyed due to the high vapor pressure of water and have poor pressure resistance. Therefore, we would like to use pipes made of iron-based materials such as iron or copper, but due to the contact reaction between water and iron-based materials, if the heat pipe is operated for a long time, hydrogen gas will be generated, resulting in the corrosion of the pipes. However, it eventually ended up being destroyed.
従つてこれらの諸問題を解決し高温用の水を作
動液とするヒートパイプにして腐食の進行しない
ヒートパイプの出現が望まれていた。 Therefore, it has been desired to develop a heat pipe that solves these problems and uses water as a working fluid for high-temperature use and does not cause corrosion.
（問題点を解決するための手段）
本発明は上記の実情に鑑みてなされたもで、鉄
系のパイプを用いるとともに、水を作動液とした
ヒートパイプ製造するに当り、鉄系のヒートパイ
プ内面を硫化ソーダ（Na2S）の稀薄液で処理し
て酸化皮膜を形成させる方法（第１の発明）及び
鉄系のヒートパイプ内面を（亜塩素酸ナトリウム
と水酸化ナトリウムの混合水溶液で処理して酸化
皮膜を形成させる方法（第２の発明）に関する。(Means for Solving the Problems) The present invention has been made in view of the above-mentioned circumstances, and when manufacturing a heat pipe using iron-based pipes and using water as a working fluid, A method of forming an oxide film by treating the inner surface with a dilute solution of sodium sulfide (Na 2 S) (first invention) and a method of treating the inner surface of an iron-based heat pipe with a mixed aqueous solution of sodium chlorite and sodium hydroxide. The present invention relates to a method for forming an oxide film (second invention).
（作用）
鉄系のパイプ内面に緻密な酸化皮膜が形成され
ることによつて、水を作動液とするとヒートパイ
プに於てパイプ内面の腐食を防止することができ
るが、本発明によれば、そのようなヒートパイプ
を製造する上で安価で危険性の少ない薬品処理に
よつて緻密な酸化皮膜を鉄系パイプの内面に形成
することができる。(Function) By forming a dense oxide film on the inner surface of the iron-based pipe, corrosion of the inner surface of the pipe can be prevented when water is used as the working fluid, but according to the present invention, corrosion of the inner surface of the pipe can be prevented. In manufacturing such a heat pipe, a dense oxide film can be formed on the inner surface of the iron-based pipe by chemical treatment, which is inexpensive and has little risk.
（実施例）
第１図はヒートパイプの動作説明図、第２図は
本発明により得られたヒートパイプの断面図を示
す。(Example) FIG. 1 is an explanatory diagram of the operation of a heat pipe, and FIG. 2 is a sectional view of a heat pipe obtained according to the present invention.
先づ第１図に於て１は密閉筒状容器、２はウイ
ツクで矢視Q1方向の加熱を受け、作動液は蒸発
し気化物が右方に進みQ2の冷却（熱交換）によ
り凝縮液は左方に進む。 First, in Figure 1, 1 is a sealed cylindrical container and 2 is a wick, which receives heat in the direction of arrow Q1 , the working fluid evaporates, and vaporized matter moves to the right due to cooling (heat exchange) in Q2. The condensate moves to the left.
ここに本発明は密閉筒状容器１を鉄、炭素鋼、
クロムニツケル鋼、クロムニツケル系ステンレス
鋼等の鉄を主成分とする金属材料からなる。 Here, the present invention provides a sealed cylindrical container 1 made of iron, carbon steel,
Made of metal materials whose main component is iron, such as chrome-nickel steel and chrome-nickel stainless steel.
又、ウイツクは各種の金属繊維、有機繊維、無
機繊維よりなる不織布、あるいは金属メツシユ
体、金属粉末等の多孔質焼結体を管内周面に圧着
あるいは焼付等の処理を施行することにより製造
される。 In addition, wicks are manufactured by applying treatments such as crimping or baking non-woven fabrics made of various metal fibers, organic fibers, and inorganic fibers, or porous sintered bodies such as metal mesh bodies and metal powders to the inner peripheral surface of the pipe. Ru.
本発明によればこのようなヒートパイプに於
て、作動流体を水とし、パイプを鉄系金属により
製作するものとし、その場合に鉄系金属の腐食を
防止するため、内面を酸化皮膜３により防食する
ことができる。 According to the present invention, in such a heat pipe, the working fluid is water and the pipe is made of iron-based metal.In this case, the inner surface is coated with an oxide film 3 to prevent corrosion of the iron-based metal. Can prevent corrosion.
この場合の防食手段としてはその１つは硫化皮
膜形成剤を用いる方法（第１の発明）であり、硫
化ソーダ（Na2S）0.01〜１％の濃度の範囲でPH
13〜1N程度のカ性ソーダ炭酸ソーダ等のアルカ
リ溶液中で常温〜60℃の温浴中に浸漬するか又は
この処理剤をヒートパイプを形成するパイプ内に
充填してこのパイプを常温〜60℃の温浴中に浸漬
して充分反応させ、ヒートパイプ内表面に酸化皮
膜が形成される。 One of the anti-corrosion measures in this case is a method using a sulfide film forming agent (first invention), which uses sodium sulfide (Na 2 S) in a concentration range of 0.01 to 1% to prevent PH.
Either immerse the pipe in a warm bath at room temperature to 60℃ in an alkaline solution of about 13 to 1N caustic soda or soda, or fill the pipe that forms the heat pipe with this treatment agent and heat the pipe at room temperature to 60℃. The heat pipe is immersed in a warm bath to allow a sufficient reaction, and an oxide film is formed on the inner surface of the heat pipe.
他の１つは酸化皮膜形成剤を用いる方法（第２
の発明）であり、亜塩素酸ナトリウム（１〜５
％）及び水酸化ナトリウム（１〜５％）混合水溶
液の50〜80℃に加温した浴液中にヒートパイプを
構成するパイプを浸漬するか又はこのパイプ内に
この処理剤を充填し、50〜80℃の温浴中でこのパ
イプを浸漬加温し反応させてヒートパイプ内面に
酸化皮膜を形成させる。 The other method is to use an oxide film forming agent (the second
invention) and sodium chlorite (1 to 5
%) and sodium hydroxide (1 to 5%) mixed aqueous solution heated to 50 to 80 °C, or fill the pipe with this treatment agent, and The pipe is immersed in a hot bath of ~80°C to cause a reaction and form an oxide film on the inner surface of the heat pipe.
上記いづれの処理も反応時間は約１時間とし、
その後水洗乾燥を行なう。 The reaction time for any of the above treatments was approximately 1 hour.
After that, wash with water and dry.
この２種の方法で試料とする鉄系パイプの内面
を酸化処理し、水素ガスの発生、抑制効果につい
て酸化未処理の鉄パイプとガスクロマト分析によ
り比較検討を行なつた。 The inner surfaces of iron pipes as samples were oxidized using these two methods, and the hydrogen gas generation and suppression effects were compared with unoxidized iron pipes and gas chromatographic analysis.
その結果の一例を示せば第３図のとおりで(イ)の
内面未処理の鉄パイプではH2ピークが頗る高い
が本発明の方法による(ロ)の酸化膜（硫化膜）パイ
プ(ハ)の酸化膜パイプでは、いづれもH2ピークが
低く、水素ガス発生がほとんどなく長期間水作動
液下で腐食し難いことを示している。 An example of the results is shown in Figure 3, where (a) the iron pipe with an untreated inner surface has a markedly high H 2 peak, but (b) the pipe with an oxide film (sulfide film) produced by the method of the present invention (c) The oxide film pipes all have a low H 2 peak, indicating that there is almost no hydrogen gas generation and that they are difficult to corrode under water hydraulic fluid for a long period of time.
（発明の効果）
本発明は上述の如く作動液体が最も普遍的で廉
価な水を用いかつパイプ基材に鉄系材料を用いた
場合でも内面腐食を生じ難いヒートパイプを提供
するものであり、そのため、この内面防食に当
り、極めて容易で、取扱いし易い薬品処理方法を
提供するものである。(Effects of the Invention) As described above, the present invention provides a heat pipe that uses water, which is the most universal and inexpensive working fluid, and is less prone to internal corrosion even when an iron-based material is used as the pipe base material. Therefore, an extremely simple and easy-to-handle chemical treatment method is provided for this inner surface corrosion protection.
第１図はヒートパイプの動作説明図、第２図は
本発明により得られるヒートパイプの一例を示す
横断面図、第３図はヒートパイプ内面のガスクロ
マトグラムの一例を示し、イは内面未処理の鉄系
パイプの場合、ロは内面に酸化膜（硫化膜）を施
した鉄系パイプの場合、ハは内面に酸化膜を施し
た鉄系パイプの場合を示す。
１……密閉筒状容器、２……ウイツク、３……
酸化皮膜。
Fig. 1 is an explanatory diagram of the operation of a heat pipe, Fig. 2 is a cross-sectional view showing an example of a heat pipe obtained by the present invention, Fig. 3 is an example of a gas chromatogram of the inner surface of the heat pipe, and A shows an untreated inner surface. In the case of iron-based pipes, B shows the case of iron-based pipes with an oxide film (sulfide film) applied to the inner surface, and C shows the case of iron-based pipes with an oxide film applied to the inner surface. 1... airtight cylindrical container, 2... wick, 3...
Oxide film.
Claims (1)
（Na2S）0.01〜１％の濃度範囲でPH13〜1N程度
のアルカリ溶液により常温〜60℃で処理して酸化
皮膜を形成させることを特徴とするヒートパイプ
の内面の防食処理方法。 ２ 鉄系のヒートパイプ内面を１〜５％亜塩素酸
ナトリウムと、１〜５％の水酸化ナトリウムとの
混合水溶液により50〜80℃で処理して酸化皮膜を
形成させることを特徴とするヒートパイプの内面
の防食処理方法。[Claims] 1. The inner surface of an iron-based heat pipe is treated with an alkaline solution of sodium sulfide (Na 2 S) in a concentration range of 0.01 to 1% and a pH of about 13 to 1N at room temperature to 60°C to form an oxide film. A method for anticorrosion treatment of the inner surface of a heat pipe, characterized by: 2 Heat characterized by treating the inner surface of an iron-based heat pipe with a mixed aqueous solution of 1-5% sodium chlorite and 1-5% sodium hydroxide at 50-80°C to form an oxide film. Corrosion prevention treatment method for the inner surface of pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12916784A JPS618594A (en) | 1984-06-25 | 1984-06-25 | Heat pipe and method of corrosion preventive treatment of inner surface thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12916784A JPS618594A (en) | 1984-06-25 | 1984-06-25 | Heat pipe and method of corrosion preventive treatment of inner surface thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618594A JPS618594A (en) | 1986-01-16 |
| JPH059719B2 true JPH059719B2 (en) | 1993-02-05 |
Family
ID=15002795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12916784A Granted JPS618594A (en) | 1984-06-25 | 1984-06-25 | Heat pipe and method of corrosion preventive treatment of inner surface thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019082264A (en) * | 2017-10-27 | 2019-05-30 | 古河電気工業株式会社 | Vapor chamber |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930009932B1 (en) * | 1987-12-09 | 1993-10-13 | 후지 꾸라 덴센 가부시끼가이샤 | Heat pipe and method of manufacturing the same |
| US5314010A (en) * | 1987-12-09 | 1994-05-24 | Fujikura Ltd. | Heat pipe and method of manufacturing the same |
| SG152908A1 (en) * | 2001-08-28 | 2009-06-29 | Advanced Materials Tech | Advanced microelectronic heat dissipation package and method for its manufacture |
| CN105928403B (en) * | 2016-04-28 | 2017-09-29 | 安徽工业大学 | A kind of compound porous capillary wick of powder microfibre applied to loop circuit heat pipe system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424762B2 (en) * | 1974-09-18 | 1979-08-23 | ||
| JPS591991A (en) * | 1982-06-25 | 1984-01-07 | Babcock Hitachi Kk | Heat pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424762U (en) * | 1977-07-22 | 1979-02-17 |
-
1984
- 1984-06-25 JP JP12916784A patent/JPS618594A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424762B2 (en) * | 1974-09-18 | 1979-08-23 | ||
| JPS591991A (en) * | 1982-06-25 | 1984-01-07 | Babcock Hitachi Kk | Heat pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019082264A (en) * | 2017-10-27 | 2019-05-30 | 古河電気工業株式会社 | Vapor chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618594A (en) | 1986-01-16 |
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