JPS58690A - Composite pipe - Google Patents
Composite pipeInfo
- Publication number
- JPS58690A JPS58690A JP9704981A JP9704981A JPS58690A JP S58690 A JPS58690 A JP S58690A JP 9704981 A JP9704981 A JP 9704981A JP 9704981 A JP9704981 A JP 9704981A JP S58690 A JPS58690 A JP S58690A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- composite pipe
- tube
- atmosphere
- composite
- 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
- 239000002131 composite material Substances 0.000 title claims description 14
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、複合管に関し、さらに詳しくは、外側は高温
の腐蝕性のガス雰囲気で、内側には腐蝕性流体ｔ−流す
ことのできる複合管Ｋ１１ｌする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite pipe, and more particularly to a composite pipe K11l, which has a high temperature corrosive gas atmosphere on the outside and allows a corrosive fluid to flow inside.
従来よシ、内１１１ＪＫ腐蝕性流体２例えば、海水が流
れ、ｔた、外側は高温度の廃気にさらされるという、例
えば、蒸気原動機の復水器の熱交換管として鋼合金管が
使用されている。Conventionally, for example, steel alloy pipes are used as heat exchange pipes in the condenser of a steam engine, where seawater flows and the outside is exposed to high-temperature waste air. ing.
そして、このように、内＠に腐蝕性液体が直れ、外側は
、石炭１石油、又は天然ガスなどの燃焼した高温度の廃
ガスにさらされる管としては、最近のように装置の大型
化に伴なう高能率化によって要求される流体の処理、即
ち、特殊な流体の処理のために、管の外面は、上記のよ
うな高温度の廃ガス、それに附随してくるドレインによ
る腐蝕は極めて苛酷なものとなってきている。そして、
この廃ガス中には上記の焼料の燃尭ガス中には炭酸ガス
、亜硫酸ガス、又は、循環系統内で発生、１人した酸素
等が含まれ、かつ、高温であるので管の外＠が著しく腐
蝕されることは明らかである。In this way, the inside of the pipe is exposed to corrosive liquid, and the outside is exposed to high-temperature waste gas from burning coal, petroleum, or natural gas. In order to process fluids that are required to achieve high efficiency due to high efficiency, that is, to process special fluids, the outer surface of the pipe is protected from corrosion due to the high temperature waste gas and accompanying drain. It has become extremely harsh. and,
This waste gas contains carbon dioxide gas, sulfur dioxide gas, or oxygen generated in the circulation system, and is at a high temperature, so it must be removed from the outside of the pipe. It is clear that the material is severely corroded.
よって、仁のような環境下にシいて使用する管の材料と
して、従来より便用されているアルミニウム黄銅系の鋼
合金管はＪＩＳ規格にも示されているもので、きびしい
使用条件に対して充分とされてはいるが、なお、上記し
たようなきびしい環境下では不充分な点もあり、これを
鱗決する手段として、上記の鋼合金管の表面（外＠）に
ニッケルの被覆を設ける仁とが行なわれ九が、管の内側
からの腐蝕が激しいので（例えば、海水を流している場
合。）、外側の腐蝕がある程度防止できても、管全体と
しては管の使用期間を長くすることができないばかシか
、経済的にも費用がかかるのである。その上、長尺のも
のに均一に被覆を設けることは、熱伝導性の低下にもつ
ながるものである。Therefore, aluminum-brass steel alloy pipes, which have been commonly used as materials for pipes used in harsh environments, are specified in the JIS standards and are suitable for severe usage conditions. Although it is considered to be sufficient, there are still some inadequacies in the harsh environment described above, and as a means to resolve this, it is recommended to apply a nickel coating to the surface (outside) of the steel alloy pipe. However, since the corrosion from the inside of the pipe is severe (for example, when seawater is flowing), even if corrosion on the outside can be prevented to some extent, the life of the pipe as a whole should be extended. Either this is not possible or it is economically expensive. Furthermore, providing a uniform coating on a long object also leads to a decrease in thermal conductivity.
本発明は、上記したような従来における技術の欠点２問
題点を解消すべくなされたものであって、即ち、管の内
側に海水等のＣｔ−を含む腐蝕性流体が流れ、外側は高
温度の腐蝕性ガス雰囲気にさらされる管（主に熱交換用
管）としての複合管を提供するものである。The present invention has been made to solve the two drawbacks of the conventional technology as described above, namely, a corrosive fluid containing Ct-, such as seawater, flows inside the pipe, and the outside is at a high temperature. The present invention provides a composite pipe that can be used as a pipe (mainly a heat exchange pipe) that is exposed to a corrosive gas atmosphere.
本発明に係る複合管の特徴とするところは、耐蝕性金属
、又は、合金よりなる内管、炭素質材料よシなる中管、
及び、耐蝕性を有し、或いは、有しない金属、又は、合
金よりなる外！よりなることにある。The composite pipe according to the present invention is characterized by an inner pipe made of a corrosion-resistant metal or alloy, a middle pipe made of a carbonaceous material,
And materials made of metals or alloys that may or may not have corrosion resistance! It is about becoming more.
本発明に係る複合管について、以下、詳細に説明する。The composite pipe according to the present invention will be explained in detail below.
本発明に係る複合管において、内管 外管に使用する耐
蝕性金属、又は、合金としては、不銹鋼。In the composite pipe according to the present invention, the corrosion-resistant metal or alloy used for the inner pipe and the outer pipe is stainless steel.
チタニウム、ジルコニウム、タンタル、ニオブ。Titanium, zirconium, tantalum, niobium.
又はこれらの合金が適している。Or these alloys are suitable.
また、外管に使用する耐蝕性を有しない金属。Also, the metal used for the outer tube does not have corrosion resistance.
又は、合金としては、通常の炭素′鋼、軟鋼等が使用さ
れ、特に、耐蝕性のないものである。Alternatively, as the alloy, ordinary carbon steel, mild steel, etc. may be used, especially those without corrosion resistance.
本発明に係る複合管において、内管に流す流体としては
、腐蝕性液体１例えば、Ｃｔ″″を含む液体として海水
であるが、海水以外にＣｔ−を含む液体はどのような４
のでも使用することができる。In the composite pipe according to the present invention, the fluid to be flowed into the inner pipe is a corrosive liquid 1, for example, seawater as a liquid containing Ct.
It can also be used.
また、外管の外側の雰囲気としては、上記したところで
あるが、石炭２石油、天燃βス等の高温度の燃焼ガスと
かこの廃ガス等の腐蝕性ガス雰囲気であシ、附随して腐
蝕性ドレインが生じるような雰囲気である。As mentioned above, the atmosphere outside the outer tube is a corrosive gas atmosphere such as high-temperature combustion gas such as coal, petroleum, and natural combustion gas, and this waste gas. The atmosphere is such that a sexual drain occurs.
本発明に係る複合管の製造法について説明するが、内管
の材料をチタニウム、中管をグラファイト、外管を不銹
鋼として説明するが、他の金属。The method for manufacturing a composite tube according to the present invention will be described, and the inner tube will be made of titanium, the middle tube will be made of graphite, and the outer tube will be made of stainless steel. However, other metals may be used.
又は、合金でも同様である。Or, the same applies to alloys.
即ち、チタニウム内管の全周に１グラフアイトを軽く押
圧（又は、圧延）して板状にしたものを □巻回し、
これを、不銹銅外筒に嵌挿して、三層の管としたもの−
を、スエジングマシンによりスェージすることによって
細径して所望の太さのもＯＫする。こうすることによっ
て、内管、中管、外管は強固に密着した複合管を製造す
ることができる。That is, one graphite was lightly pressed (or rolled) into a plate shape around the entire circumference of the titanium inner tube, and wound around it.
This was inserted into a non-rusting copper outer cylinder to form a three-layer tube.
By swaging with a swaging machine, the diameter can be reduced to a desired thickness. By doing so, it is possible to manufacture a composite tube in which the inner tube, middle tube, and outer tube are firmly attached.
このようにして製造された本発明に係る複合管を、上記
し九ような高温度の腐蝕性雰囲気中に設置し、内管に海
水を流す。そして、この状態において本発明に係る複合
管の挙動について説明すると、内管に流れるのはＣｔ−
を含む海水であるが、材料がチタニウムであることから
優れた耐蝕性を示すものであり、ｉた、外管の不銹鋼は
上記した雰囲気においては耐蝕性はあるが、成る時間を
゛経過すると高温度の雰囲気のためにグラファイトのＣ
と不銹鋼が反応して極めて脆い炭化物を形成して剥離す
るようになる。しかしながら、中管がグラファイトであ
るから、上記した高温度の雰囲気において充分に耐蝕性
を示し、長期間にわたって使用することができるもので
ある。The composite pipe according to the present invention manufactured in this manner is placed in a high temperature corrosive atmosphere as described above, and seawater is poured into the inner pipe. To explain the behavior of the composite tube according to the present invention in this state, the flow of Ct-
However, since the material is titanium, it exhibits excellent corrosion resistance.Although the stainless steel of the outer tube has corrosion resistance in the above-mentioned atmosphere, it deteriorates over time. Graphite C for temperature atmosphere
The rustless steel reacts with the steel to form extremely brittle carbides, which then peel off. However, since the inner tube is made of graphite, it exhibits sufficient corrosion resistance in the above-mentioned high temperature atmosphere and can be used for a long period of time.
以上、説明したように、本発明に係る複合管は、上記の
構成を有しているものであるから、高温度の腐蝕性雰囲
気でＣｔ−を含む液体を流すのに極めて効果の優れたも
のである。As explained above, since the composite pipe according to the present invention has the above-mentioned configuration, it is extremely effective in flowing a Ct-containing liquid in a high-temperature corrosive atmosphere. It is.
特許用願人 高 安 清 輝Patent applicant Kiyoshi Takayasu
Claims (1)
なる中管、及び、耐蝕性を有し、或いは、有しない金属
、又は、合金よ］なる外管よりなることを特徴とする複
合管。It is characterized by comprising an inner tube made of a corrosion-resistant metal or alloy, a middle tube made of a carbonaceous material, and an outer tube made of a metal or alloy with or without corrosion resistance. Composite tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9704981A JPS58690A (en) | 1981-06-23 | 1981-06-23 | Composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9704981A JPS58690A (en) | 1981-06-23 | 1981-06-23 | Composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58690A true JPS58690A (en) | 1983-01-05 |
Family
ID=14181801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9704981A Pending JPS58690A (en) | 1981-06-23 | 1981-06-23 | Composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58690A (en) |
-
1981
- 1981-06-23 JP JP9704981A patent/JPS58690A/en active Pending
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