CN2097935U - Antiputrefactive pipe with inside bell socket head - Google Patents
Antiputrefactive pipe with inside bell socket head Download PDFInfo
- Publication number
- CN2097935U CN2097935U CN 91217315 CN91217315U CN2097935U CN 2097935 U CN2097935 U CN 2097935U CN 91217315 CN91217315 CN 91217315 CN 91217315 U CN91217315 U CN 91217315U CN 2097935 U CN2097935 U CN 2097935U
- Authority
- CN
- China
- Prior art keywords
- pipe
- corrosion
- socket head
- spigot joint
- bell socket
- 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
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a corrosion-protective pipe with an inner bell socket head, belonging to the corrosion-protection for rigid pipes and pipes, and aiming to solve the problem that the inner surface, that is the inner repaired mouth, of a circumferential weld for connecting a pipeline is corroded beforehand. The utility model provides a corrosion-protective pipe with an inner bell socket head. The structure is that one end of the pipe is sheathed with an inner bell socket head, and the other end is provided with an annular groove formed through a vacant inner lining. The inner repaired mouth is corrosion protective, the inner bell socket head can be easily fixed, and the installation and the construction for the pipes are convenient. The corrosion-protective pipe with an inner bell socket head can be widely used for the engineering pipes for the petroleum, the chemical industry, the urban construction, the machinery, the water power, the power, the army, etc.
Description
The anti-corrosion pipe of bell and spigot joint belongs to the corrosion protection of rigid pipe and pipe in having.
In the petroleum industry, because contain a large amount of hydrogen sulfide, chlorion and carbon dioxide etc. in the fluid of line transportation, so pipeline is subjected to rapid corrosion, so that perforation is leaked, this has seriously influenced production and has polluted environment, and heavy pipe laying line then causes huge waste.For this reason, all adopt inner-walls of duct to hang the way of mortar both at home and abroad.But insoluble is the circumferential weld internal surface of connecting pipe, and promptly custom is called the internal joint patch etching problem.The mortar liner at this position decompose to bubble under 1700 ℃ of welding action of high temperature, forms weld defects, causes early stage corrosion, wherein especially with small-bore internal joint patch seriously corroded in below the 159mm.So far still there is not effective way both at home and abroad.More domestic oil are built worker department and are bubbled in order to prevent welding, so dig up near the mortar the internal joint patch, internal joint patch is exposed in the fluid fully, and this undoubtedly can accelerated corrosion, U.S.'s width of cloth penetrate chemical company (Raychemco) in the Middle East with the topped internal joint patch of the anticorrosion ring of copper-based memory alloy.But the antiseptic property of itself is also more unreliable in addition than mortar difference.
The purpose of this utility model provides the anti-corrosion pipeline that a kind of internal joint patch corrosion-resistant has interior bell and spigot joint.
Main points of the present utility model are to add interior bell and spigot joint at pipe one end, loose fit between its external diameter and the ips, interior bell and spigot joint exposes outer one section of pipe when being inserted in steel pipe, between interior bell and spigot joint and the steel pipe with the spot welding fixed connection, this joint and pipe are hung mortar simultaneously, form a flanged mortar pipe at last, another feature of the present utility model is the vacant one section mortar of the other end of pipe, then pipe end has formed annular recess, when connecting pipe is installed, the flange of a steel pipe docks with the groove fit of another root steel pipe, then seam is welded.
Fig. 1 is the anti-corrosion pipe structural representation of bell and spigot joint in having.1 is interior bell and spigot joint among the figure, and 2 is liner, and 3 is groove, and 4 is steel pipe walls, below comparative examples and accompanying drawing, further specify the utility model.As shown in the figure, be inserted in the interior bell and spigot joint 1 of external diameter 71.5mm, long 18mm at an end of internal diameter 72mm steel pipe, it exposes the long 9mm of part of steel pipe, and after steel pipe and interior bell and spigot joint spot welding were fixing, the two hung mortar liner 2 together.The other end of pipe among the figure, the steel pipe walls 4 of vacant one section mortar forms annular recess 3, the long 9mm of groove.When connecting pipe was constructed, two pipe head and the tail 1 and 3 are joined can be welded two pipes behind the jam-packed, until needs length.
The anti-corrosion pipe of bell and spigot joint in having, the mortar liner is non-foaming during welding, makes simply, and it is easy that pipe assembles centering mutually, and the internal joint patch corrosion resistance is good.
In having the anti-corrosion pipe of bell and spigot joint extensively model be used for that petroleum industry is for example recovered the oil, filling pipe etc., the while also can be used for urban construction, chemical industry, machinery, waterpower, power, war industry etc. needs the corrosion-resistant pipeline.
Claims (5)
1, has the anti-corrosion pipe of interior bell and spigot joint, have steel pipe walls [4] and liner [2], it is characterized in that being with interior bell and spigot joint [1], the annular recess [3] that the other end of pipe has one section vacant liner to form at pipe one end.
2, according to the said anti-corrosion pipe that has interior bell and spigot joint of claim 1, it is characterized in that said interior bell and spigot joint is one section and is placed in the pipe, one section is exposed at the pipe outside.
3,, it is characterized in that said interior bell and spigot joint, its external diameter and ips loose fit according to the said anti-corrosion pipe that has interior bell and spigot joint of claim 1.
4, according to the said anti-corrosion pipe that has interior bell and spigot joint of claim 1, it is characterized in that said interior bell and spigot joint, it and tube wall are fixed with spot welding.
5, according to the said anti-corrosion pipe that has interior bell and spigot joint of claim 1, it is characterized in that said interior bell and spigot joint, it has liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217315 CN2097935U (en) | 1991-07-05 | 1991-07-05 | Antiputrefactive pipe with inside bell socket head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217315 CN2097935U (en) | 1991-07-05 | 1991-07-05 | Antiputrefactive pipe with inside bell socket head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2097935U true CN2097935U (en) | 1992-03-04 |
Family
ID=4925014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91217315 Expired - Lifetime CN2097935U (en) | 1991-07-05 | 1991-07-05 | Antiputrefactive pipe with inside bell socket head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2097935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038055B (en) * | 2006-03-14 | 2010-06-23 | 三菱重工业株式会社 | Welded piping joint structure |
| CN104121428A (en) * | 2014-07-16 | 2014-10-29 | 山东石大胜华化工集团股份有限公司 | External heating flue gas return line for bio-fuel device and manufacturing method thereof |
-
1991
- 1991-07-05 CN CN 91217315 patent/CN2097935U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038055B (en) * | 2006-03-14 | 2010-06-23 | 三菱重工业株式会社 | Welded piping joint structure |
| CN104121428A (en) * | 2014-07-16 | 2014-10-29 | 山东石大胜华化工集团股份有限公司 | External heating flue gas return line for bio-fuel device and manufacturing method thereof |
| CN104121428B (en) * | 2014-07-16 | 2016-08-24 | 山东石大胜华化工集团股份有限公司 | Flue gas line of return for bio-fuel device outside heat removing and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |