JPS6145158B2 - - Google Patents
Info
- Publication number
- JPS6145158B2 JPS6145158B2 JP10016280A JP10016280A JPS6145158B2 JP S6145158 B2 JPS6145158 B2 JP S6145158B2 JP 10016280 A JP10016280 A JP 10016280A JP 10016280 A JP10016280 A JP 10016280A JP S6145158 B2 JPS6145158 B2 JP S6145158B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- heat pipe
- vanadate
- metavanadate
- hydrogen gas
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims description 4
- PAJMKGZZBBTTOY-UHFFFAOYSA-N 2-[[2-hydroxy-1-(3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[g]naphthalen-5-yl]oxy]acetic acid Chemical compound C1=CC=C(OCC(O)=O)C2=C1CC1C(CCC(O)CCCCC)C(O)CC1C2 PAJMKGZZBBTTOY-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- ALTWGIIQPLQAAM-UHFFFAOYSA-N metavanadate Chemical compound [O-][V](=O)=O ALTWGIIQPLQAAM-UHFFFAOYSA-N 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 16
- 238000005260 corrosion Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/185—Refractory metal-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Chemical Treatment Of Metals (AREA)
Description
【発明の詳細な説明】
この発明は、排熱回収装置などに使用されるヒ
ートパイプに関し、特に長期間の使用においても
性能低下をきたさない鉄製ヒートパイプに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat pipe used in an exhaust heat recovery device and the like, and particularly to an iron heat pipe that does not cause any performance deterioration even after long-term use.
鉄製ヒートパイプは低温域（70〜130℃）から
高温域（200〜400℃）にかけて広い温度範囲で作
動し得、コスト的にも銅製のものに比べて有利で
ある上に、強度の点でも申し分ないので、従来か
ら広い適用範囲で使用されている。そしてこの種
のヒートパイプにおいて、作動液としては、水
が、広い作動温度範囲を有する点、および高い蒸
発潜熱（540cal／ｇ）および限界熱流（109W／
cm2）を有する点で、最適とされている。ところが
水が作動液であつて、ヒートパイプの容器が鉄で
構成されている場合、水と鉄の反応により水素ガ
スを発生する。そして発生した水素ガスは、原子
状態で鉄製容器の壁内を拡散して、一部は一定速
度で容器外に放出されるが、大部分は容器内の凝
縮部に溜つて、ヒートパイプの性能を低下させ
る。従来、このような点を考慮して、作動液とし
てNaOH水溶液その他のアルカリ性水溶液が使用
され、容器内面にFe3O4からなる防食皮膜が形成
されていた。しかし、こうして形成された皮膜も
完全なものではなく、容器内面の腐食により水素
ガスがある程度発生し、水素ガスの発生速度を、
容器外への水素ガス放出速度以下に抑えることが
できず、そのため水素ガスの容器内滞溜が避けら
れなかつた。 Steel heat pipes can operate in a wide temperature range from low temperatures (70 to 130 degrees Celsius) to high temperatures (200 to 400 degrees Celsius), and are cost-effective compared to copper ones, as well as being stronger. Since it is satisfactory, it has been used in a wide range of applications. In this type of heat pipe, water is used as the working fluid because it has a wide operating temperature range, a high latent heat of vaporization (540 cal/g), and a critical heat flow (109 W/g).
cm 2 ), which is considered to be optimal. However, when water is the working fluid and the heat pipe container is made of iron, hydrogen gas is generated by the reaction between water and iron. The generated hydrogen gas then diffuses within the walls of the steel container in an atomic state, and some of it is released outside the container at a constant rate, but most of it accumulates in the condensation section inside the container, which improves the performance of the heat pipe. decrease. Conventionally, in consideration of these points, an aqueous NaOH solution or other alkaline aqueous solution has been used as the working fluid, and an anticorrosive film made of Fe 3 O 4 has been formed on the inner surface of the container. However, the film formed in this way is not perfect, and a certain amount of hydrogen gas is generated due to corrosion on the inner surface of the container, reducing the rate of hydrogen gas generation.
It was not possible to suppress the hydrogen gas release rate to the outside of the container, and as a result, accumulation of hydrogen gas in the container was unavoidable.
この発明は、上記のような実情からなされたも
のであつて、内部に水素ガスが溜つて性能低下を
きたすおそれのないヒートパイプを提供すること
を目的とするものである。 The present invention was made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a heat pipe that is free from the risk of hydrogen gas accumulating inside and causing performance deterioration.
この発明によるヒートパイプは、鉄製の容器内
に作動液としてバナジウム酸塩の水溶液が封入さ
れたものである。 The heat pipe according to the present invention has an aqueous solution of a vanadate salt as a working fluid sealed in an iron container.
この発明によるヒートパイプの鉄製の容器とし
ては、ステンレス鋼、炭素鋼などよりなる容器、
さらにこれらの外面にアルミナイズド皮膜を有す
る容器が用いられている。 The iron container of the heat pipe according to the present invention includes a container made of stainless steel, carbon steel, etc.
Furthermore, containers having an aluminized coating on their outer surfaces are used.
バナジン酸塩としては、メタバナジン酸アンモ
ニウム、メタバナジン酸ナトリウム、メタバナジ
ン酸カリウム、メタバナジン酸リチウムなどがよ
く使用されるが、これらに限定されない。バナジ
ン酸塩水溶液の使用によつて容器内面に耐食性に
優れた緻密な防食皮膜が形成される。バナジン酸
塩の濃度は好ましくは0.1重量％〜飽和濃度であ
る。0.1重量％未満では十分な厚さ防食皮膜が形
成されない。 As the vanadate, ammonium metavanadate, sodium metavanadate, potassium metavanadate, lithium metavanadate, and the like are often used, but are not limited thereto. By using the vanadate aqueous solution, a dense anti-corrosion film with excellent corrosion resistance is formed on the inner surface of the container. The concentration of vanadate is preferably 0.1% by weight to saturation concentration. If it is less than 0.1% by weight, a sufficiently thick anticorrosive film will not be formed.
バナジン酸塩の水溶液は、予めバナジン酸塩を
イオン交換水に溶解して調製したものでも、ま
た、容器内にまずバナジン酸塩を投入し、ついで
イオン交換水を注入して、容器内において調製し
たものでもよい。また作動液を容器内に封入した
後、160〜200℃の高温域で熱処理を行なうと、防
食皮膜の形成を促進することができる。 The aqueous solution of vanadate can be prepared by dissolving vanadate in ion-exchanged water in advance, or it can be prepared in a container by first adding vanadate and then ion-exchanged water. It may be something you have done. Furthermore, if the hydraulic fluid is sealed in the container and then heat treated at a high temperature range of 160 to 200°C, the formation of an anti-corrosion film can be promoted.
この発明によるヒートパイプでは、容器内面に
微量の腐食が生じて、水素ガスが若干発生するこ
とがあるが、その発生速度は水素ガスが鉄製の容
器の壁内部を拡散して容器外に放出する速度より
低いため、その量はヒートパイプの性能低下をき
たすほどにはならない。またこの若干発生した水
素を放出させるには、図面に示すように、ヒート
パイプ用容器１の凝縮側端部（１ａ）にパラジウ
ムまたはその合金よりなる線状の水素透過部材２
を貫通状に設け、銀ろう付けするとよい。鉄製の
容器の外面を、耐食性付与およびブレージング層
を有するアルミニウムフインの真空ろう付けの目
的でアルミナイズド処理することがあるが、この
場合容器の壁内部を拡散した水素ガスは、形成さ
れたアルミナイズド皮膜によつて容器外への放出
を遮られる。したがつてこの場合水素透過部材の
配設が特に効果的である。また水素透過部材は線
状であつて、器壁を貫通して容器の内外に突出し
ているので、同部材と器壁との間の電池作用によ
り生じる容器の腐食を最小限に抑えることができ
る。 In the heat pipe according to this invention, a small amount of corrosion may occur on the inner surface of the container and a small amount of hydrogen gas may be generated, but the rate of generation is such that the hydrogen gas diffuses inside the wall of the iron container and is released outside the container. Since it is lower than the speed, the amount is not large enough to degrade the performance of the heat pipe. In addition, in order to release this slightly generated hydrogen, as shown in the drawing, a linear hydrogen permeable member 2 made of palladium or its alloy is attached to the condensation side end (1a) of the heat pipe container 1.
It is best to provide a penetrating shape and solder it with silver. The outer surface of a steel container is sometimes aluminized for the purpose of imparting corrosion resistance and vacuum brazing aluminum fins with a brazing layer. In this case, the hydrogen gas that diffuses inside the container wall is Release outside the container is blocked by the film. Therefore, in this case, the provision of a hydrogen permeable member is particularly effective. Furthermore, since the hydrogen permeable member is linear and protrudes into and out of the container through the container wall, corrosion of the container caused by the battery action between the hydrogen permeable member and the container wall can be minimized. .
以上のとおりで、この発明のヒートパイプで
は、作動波としてバナジン酸塩の水溶液を用いる
ので、容器内面に耐食性に優れた緻密な防食皮膜
を形成することができ、その結果水素ガスの発生
を極力抑えて、水素ガスによるヒートパイプの性
能低下を解消することができる。 As described above, since the heat pipe of the present invention uses an aqueous solution of vanadate as the working wave, it is possible to form a dense anti-corrosion film with excellent corrosion resistance on the inner surface of the container, and as a result, the generation of hydrogen gas is minimized. It is possible to suppress the performance deterioration of the heat pipe due to hydrogen gas.
実施例
直径27.2mm，長さ1000mm，厚さ1.6mmのSTB35
鋼製の管材を用意し、その一端に、パラジウム線
を貫通状に設けた端壁を溶接して同端を閉じた。
ついで管材の外面のみにアルミナイズド処理を施
した。内部を硝酸ついでアセトンで洗浄した後、
他端に作動液注入ノズル付きの端壁を溶接した。
こうしてヒートパイプ用容器を製作した。ついで
この容器に、ブレージング層を有するアルミニウ
ムフインを真空ろう付により装着し、器内に約
0.6ｇのメタバナジン酸アンモニウムを投入し、
さらにイオン交換水120mlを注入し、ノズルを閉
じた。こうしてフイン付きヒートパイプを製作し
た。また作動波として１重量％，３重量％および
飽和濃度（液温15℃で5.18重量％）のメタバナジ
ン酸アンモニウム水溶液をそれぞれ用いて、３本
のフイン付きヒートパイプを製作した。こうして
製作した４本のヒートパイプは蒸発部と凝縮部の
温度差（ΔＴ）が長期にわたつて０であり、性能
低下がまつたくみられなかつた。これに対し、作
動液として水酸化ナトリウム水溶液およびイオン
交換水を用いた場合には、ΔＴが経時的に急激に
増大し、性能低下が著しかつた。Example STB35 with diameter 27.2mm, length 1000mm, thickness 1.6mm
A steel tube was prepared, and an end wall with a palladium wire extending through it was welded to one end to close the same end.
Then, only the outer surface of the tube material was subjected to aluminized treatment. After cleaning the inside with nitric acid and then acetone,
An end wall with a hydraulic fluid injection nozzle was welded to the other end.
In this way, a heat pipe container was manufactured. Next, aluminum fins with a brazing layer are attached to this container by vacuum brazing, and approximately
Add 0.6g of ammonium metavanadate,
Furthermore, 120 ml of ion-exchanged water was injected, and the nozzle was closed. In this way, a heat pipe with fins was manufactured. In addition, three finned heat pipes were fabricated using ammonium metavanadate aqueous solutions of 1% by weight, 3% by weight, and a saturated concentration (5.18% by weight at a liquid temperature of 15°C) as working waves, respectively. In the four heat pipes manufactured in this way, the temperature difference (ΔT) between the evaporating section and the condensing section was 0 for a long period of time, and no deterioration in performance was observed. On the other hand, when an aqueous sodium hydroxide solution and ion-exchanged water were used as the working fluid, ΔT rapidly increased over time, and the performance deteriorated significantly.
図面はヒートパイプの縦断面である。 １……ヒートパイプ、１ａ……凝縮部。 The drawing is a longitudinal section of the heat pipe. 1... Heat pipe, 1a... Condensing section.
Claims (1)
水溶液が封入されているヒートパイプ。 ２ バナジン酸塩が、メタバナジン酸アンモニウ
ム、メタバナジン酸ナトリウム、メタバナジン酸
カリウムおよびメタバナジン酸リチウムからなる
群から選ばれたものである特許請求の範囲第１項
記載のヒートパイプ。 ３ バナジン酸塩の水溶液の濃度が0.1重量％〜
飽和濃度である特許請求の範囲第１項記載のヒー
トパイプ。[Scope of Claims] 1. A heat pipe in which an aqueous solution of vanadate is sealed as a working fluid in an iron container. 2. The heat pipe according to claim 1, wherein the vanadate is selected from the group consisting of ammonium metavanadate, sodium metavanadate, potassium metavanadate, and lithium metavanadate. 3 The concentration of vanadate aqueous solution is 0.1% by weight ~
The heat pipe according to claim 1, which has a saturated concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10016280A JPS5723794A (en) | 1980-07-21 | 1980-07-21 | Heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10016280A JPS5723794A (en) | 1980-07-21 | 1980-07-21 | Heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5723794A JPS5723794A (en) | 1982-02-08 |
| JPS6145158B2 true JPS6145158B2 (en) | 1986-10-06 |
Family
ID=14266612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10016280A Granted JPS5723794A (en) | 1980-07-21 | 1980-07-21 | Heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5723794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0273335U (en) * | 1989-11-14 | 1990-06-05 | ||
| CN106757048A (en) * | 2016-12-13 | 2017-05-31 | 沈阳防锈包装材料有限责任公司 | A kind of heat supply network anticorrosion corrosion inhibitor and preparation and application |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5999088A (en) * | 1982-11-29 | 1984-06-07 | Mitsubishi Electric Corp | Rolling piston type compressor |
| JPS5997373U (en) * | 1982-12-20 | 1984-07-02 | 昭和アルミニウム株式会社 | heat pipe shaft |
| US4760878A (en) * | 1985-12-13 | 1988-08-02 | Showa Aluminum Corporation | Process for producing heat pipe |
-
1980
- 1980-07-21 JP JP10016280A patent/JPS5723794A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0273335U (en) * | 1989-11-14 | 1990-06-05 | ||
| CN106757048A (en) * | 2016-12-13 | 2017-05-31 | 沈阳防锈包装材料有限责任公司 | A kind of heat supply network anticorrosion corrosion inhibitor and preparation and application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5723794A (en) | 1982-02-08 |
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