JPH06103075B2 - Replacement method of small diameter pipe with fuel pipe - Google Patents
Replacement method of small diameter pipe with fuel pipeInfo
- Publication number
- JPH06103075B2 JPH06103075B2 JP31571592A JP31571592A JPH06103075B2 JP H06103075 B2 JPH06103075 B2 JP H06103075B2 JP 31571592 A JP31571592 A JP 31571592A JP 31571592 A JP31571592 A JP 31571592A JP H06103075 B2 JPH06103075 B2 JP H06103075B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- small diameter
- socket
- fuel
- air vent
- 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
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、燃料管に取り付けら
れている空気抜き管等の小径管の取替方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for replacing a small diameter pipe such as an air vent pipe attached to a fuel pipe.
【０００２】[0002]
【従来の技術】燃料タンクヤード等に導設されている燃
料移送管には、空気抜き管やゲージパイプのような小径
管が多数取り付けられているが、小径管は肉厚が薄いた
め燃料管に比べ腐食しやすい。2. Description of the Related Art A large number of small diameter pipes such as air vent pipes and gauge pipes are attached to a fuel transfer pipe installed in a fuel tank yard or the like. Compared to easily corroded.
【０００３】燃料管はそのままにして腐食した空気抜き
管だけを取り替えるには、従来は、燃料管に工事箇所の
前後に穴をあけ、ここから管の中にゴム風船を入れて膨
らませ、可燃性ガスを遮断する。また、管の中にドライ
アイスを入れ、ゴム風船とゴム風船の間の管の中を炭酸
ガスで満たす。こうしておいて、腐食した空気抜き管を
切断除去し、新しいものを溶接する。燃料管にあけた穴
は、後でプラグを溶接する。In order to replace only the corroded air vent pipe while leaving the fuel pipe as it is, conventionally, a hole is formed in the fuel pipe before and after the construction site, and a rubber balloon is put in the pipe from here to inflate the flammable gas. Shut off. Also, put dry ice in the tube and fill the tube between the rubber balloons with carbon dioxide. In this way, the corroded air vent pipe is cut off and a new one is welded. The holes made in the fuel tube will later be welded to the plug.
【０００４】[0004]
【発明が解決しようとする課題】このような従来の方法
では、ゴム風船とドライアイスを入れるための穴あけ、
事後の穴埋めに多くの労力と時間を要していた。また、
ドライアイスから生ずる炭酸ガスで溶接アークが吹き消
されたり、溶接部が冷却されたりして、溶接欠陥が生じ
やすいなどの問題があった。In such a conventional method, a rubber balloon and a hole for inserting dry ice,
It took a lot of labor and time to fill in the holes after the fact. Also,
There was a problem that the welding arc was blown out by the carbon dioxide gas generated from dry ice, or the welded part was cooled, so that welding defects were likely to occur.
【０００５】この発明は、施工が容易で、信頼性の高
い、小径管取替方法を提供することを目的とする。An object of the present invention is to provide a small-diameter pipe replacement method which is easy to install and has high reliability.
【０００６】[0006]
【課題を解決するための手段】燃料管にソケットを介し
て接続されている空気抜き管等の小径管を該ソケットを
残して除去する。そして、ソケットにガスケットを入れ
てから新しい小径管を押し込んでこれを保持する。管内
は不活性ガスで満たす。この状態で該ソケットと該小径
管の継ぎ目を溶接する。A small diameter pipe such as an air vent pipe connected to a fuel pipe through a socket is removed while leaving the socket. Then, after putting a gasket in the socket, push a new small diameter tube and hold it. Fill the tube with an inert gas. In this state, the joint between the socket and the small diameter pipe is welded.
【０００７】[0007]
【作用】新たに取り付ける小径管の管端とソケットはガ
スケットでシールされているので、管の中から可燃性ガ
スが洩れ出ることがない。したがって、小径管とソケッ
トを安全に溶接でき、爆発や火災の危険がない。Since the pipe end and the socket of the small diameter pipe to be newly installed are sealed by the gasket, the flammable gas does not leak out from the pipe. Therefore, the small diameter pipe and the socket can be safely welded, and there is no risk of explosion or fire.
【０００８】[0008]
【実施例】図１は、空気抜き管の接続部分を示したもの
であり、燃料管１にソケット３を溶接し、ソケットの中
に空気抜き管５を差し込んで溶接してある。符号７は止
め弁である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a connecting portion of an air vent pipe, in which a socket 3 is welded to a fuel pipe 1 and an air vent pipe 5 is inserted into the socket for welding. Reference numeral 7 is a stop valve.
【０００９】このような空気抜き管が腐食してしまい、
これを取り替える場合は、まず、燃料管１に不活性ガス
（窒素ガス）を送り込み、中の油を燃料タンクに押しや
って空にするとともに、管の中を不活性ガスで満たす。
こうしておいて、空気抜き管５を切断する。切断には、
火花がでないよう、パイプカッタを用いる。このとき、
ソケット３は残すようにする。切断面を図１に符号９で
示す。Such an air vent pipe is corroded,
When this is replaced, first, an inert gas (nitrogen gas) is sent to the fuel pipe 1, the oil inside is pushed into the fuel tank to be emptied, and the pipe is filled with the inert gas.
In this way, the air vent pipe 5 is cut. To disconnect
Use a pipe cutter to prevent sparks. At this time,
Leave socket 3 in place. The cross section is shown at 9 in FIG.
【００１０】次いで、図２に示すように、ソケット３の
中にガスケット１１を入れた後、新たな空気抜き管５を
挿入する。ガスケット１１は、ステンレス薄板を芯にし
たグラファイト製の扁平リングである。Next, as shown in FIG. 2, after inserting the gasket 11 into the socket 3, a new air vent pipe 5 is inserted. The gasket 11 is a flat ring made of graphite with a thin stainless plate as a core.
【００１１】挿入した空気抜き管５は治具１３で固定す
る（図３，図４）。すなわち、燃料管１にＵボルト１５
でベース１７を取り付け、ベースの上に４本のボルト２
１を立てる。空気抜き管５にボルト１９で固定した十字
部材２３をこれらのボルト２１に通し、ナット２５で締
め付ける。こうすると、空気抜き管３はソケット３に押
し付けられ、ガスケット１１が両部材の間に挟み付けら
れ、気密性が保たれる。The inserted air vent tube 5 is fixed by a jig 13 (FIGS. 3 and 4). That is, the U-bolt 15 is attached to the fuel pipe 1.
Attach the base 17 with and attach the four bolts 2 on top of the base.
Set 1. The cross member 23 fixed to the air vent pipe 5 with the bolt 19 is passed through these bolts 21 and tightened with the nut 25. By doing so, the air vent tube 3 is pressed against the socket 3, the gasket 11 is sandwiched between both members, and airtightness is maintained.
【００１２】次いで、管内に再度、不活性ガスを詰め
る。そして、ソケットと空気抜き管の継ぎ目２７からガ
ス洩れがないことを確認してから、継ぎ目２７を溶接す
る。溶接するとき治具１３が邪魔になるので、まず、仮
付けし、治具を取り外してから本溶接する。Next, the tube is filled with an inert gas again. Then, after confirming that there is no gas leakage from the joint 27 between the socket and the air vent pipe, the joint 27 is welded. Since the jig 13 becomes an obstacle during welding, first, the jig 13 is temporarily attached, the jig is removed, and then the main welding is performed.
【００１３】[0013]
【発明の効果】以上説明したようにこの発明によれば、
新たに取り付ける小径管の管端とソケットの隙間をガス
ケットでシールしながら溶接するようにしたので、可燃
性ガスが洩れ出ることがなく、小径管とソケットを安全
に溶接できる。また、従来のように、燃料管に穴をあけ
る必要がなく、工事が簡単に行うことができる。As described above, according to the present invention,
Since the gap between the pipe end of the newly installed small diameter pipe and the socket is welded while sealing with a gasket, flammable gas does not leak and the small diameter pipe and socket can be safely welded. Further, unlike the conventional case, it is not necessary to make a hole in the fuel pipe, and the construction can be easily performed.
【図１】空気抜き管の取り付け状態側面図である。FIG. 1 is a side view showing an attached state of an air vent tube.
【図２】ソケットに入れるガスケットの斜視図である。FIG. 2 is a perspective view of a gasket inserted in a socket.
【図３】治具を使って空気抜き管を固定した状態の断面
図である。FIG. 3 is a cross-sectional view of a state where an air vent tube is fixed using a jig.
【図４】治具の斜視図である。FIG. 4 is a perspective view of a jig.
１ 燃料管 ３ ソケット ５ 空気抜き管（小径管） １１ ガスケット ２７ 継ぎ目 1 Fuel Pipe 3 Socket 5 Air Venting Pipe (Small Diameter Pipe) 11 Gasket 27 Seam
Claims (1)
取り付けられている空気抜き管等の小径管（５）を該ソ
ケットを残して除去し、該ソケットにガスケット（１
１）を入れてから新しい小径管（５）を押し込んでこれ
を保持し、管の内部を不活性ガスで満たしながら、該ソ
ケットと該小径管の継ぎ目（２７）を溶接するようにし
た燃料管付き小径管の取替方法。1. A small diameter pipe (5) such as an air vent pipe attached to a fuel pipe (1) through a socket (3) is removed leaving the socket, and a gasket (1) is attached to the socket.
1) After inserting the new small diameter pipe (5), hold it, and fill the inside of the pipe with an inert gas, and weld the joint (27) between the socket and the small diameter pipe. How to replace small diameter pipe with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31571592A JPH06103075B2 (en) | 1992-10-30 | 1992-10-30 | Replacement method of small diameter pipe with fuel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31571592A JPH06103075B2 (en) | 1992-10-30 | 1992-10-30 | Replacement method of small diameter pipe with fuel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06137480A JPH06137480A (en) | 1994-05-17 |
| JPH06103075B2 true JPH06103075B2 (en) | 1994-12-14 |
Family
ID=18068671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31571592A Expired - Lifetime JPH06103075B2 (en) | 1992-10-30 | 1992-10-30 | Replacement method of small diameter pipe with fuel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06103075B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8881178B2 (en) | 2005-06-02 | 2014-11-04 | The Mathworks, Inc. | Calling of late bound functions from an external program environment |
-
1992
- 1992-10-30 JP JP31571592A patent/JPH06103075B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8881178B2 (en) | 2005-06-02 | 2014-11-04 | The Mathworks, Inc. | Calling of late bound functions from an external program environment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06137480A (en) | 1994-05-17 |
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