CN101354101A - Method for connecting thin wall stainless steel pipe seal sticky clamp - Google Patents
Method for connecting thin wall stainless steel pipe seal sticky clamp Download PDFInfo
- Publication number
- CN101354101A CN101354101A CNA2007101289108A CN200710128910A CN101354101A CN 101354101 A CN101354101 A CN 101354101A CN A2007101289108 A CNA2007101289108 A CN A2007101289108A CN 200710128910 A CN200710128910 A CN 200710128910A CN 101354101 A CN101354101 A CN 101354101A
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- stainless steel
- pipe
- thin wall
- annular groove
- wall stainless
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Abstract
The invention relates to a method for sealing, adhering and connecting thin wall stainless steel pipes, and is applied to thin wall stainless steel pipes used for conveying various liquids. A sealing ring (2) which can be sealed automatically under water pressure and used by a YX-shaped axle is positioned in an annular groove inside the mouthing and socket heads of a pipe body (1), and an elastic opening snap ring (5) is arranged in an annular groove outside the mouthing and socket heads. An adhesive injection hole (3) is arranged between the two annular grooves. During the installation of the pipe, an annular groove is processed at the pipe end, a tube (6) is inserted and the snap ring (5) is just blocked in the groove at the pipe end and then an adhesive (4) is injected from the adhesive injection hole (3).
Description
(1) technical field:
The present invention relates to a kind of method for connecting thin wall stainless steel pipe seal sticky clamp, be applicable to the thin-walled stainless steel tube of carrying various fluids.
(2) background technique:
Stainless steel has many excellent properties, is a kind of ideal conduit material.The thin-walled stainless steel tube that can reduce cost has become the direction that the building water supply pipeline develops.Thin-walled stainless steel tube, because the tubing wall is thin, can not mantle fiber, adopt which kind of method to connect, just become the key technical problem of thin-walled stainless steel tube.
At present connection method for thin-wall stainless steel pipes has been used kind more than ten.But can be divided into following two classes basically:
1, bayonet joint: clamp-press type (single deck tape-recorder, two card, ring card, interior card), welding type,
2, loose joint formula connects: (1) groove+snap ring+plug screw formula or nut,
(2) boss, flange, enlarging+nut.
Wherein bayonet joint is simple in structure, and cost is low.But reliability is relatively poor, the dismounting difficulty.The loose joint formula connects just opposite with it, and reliability is higher, convenient disassembly.But complex structure, the cost height.
Up to the present, also there is not a kind of first-selected thin-walled stainless steel tube of being generally acknowledged by engineering circle.
(3) summary of the invention:
The objective of the invention is to provide a kind of new method for connecting thin wall stainless steel pipe seal sticky clamp, make it the advantage of spigot and socket type and loose joint formula is rolled into one, become the connection method for thin-wall stainless steel pipes in a kind of ideal.
The object of the present invention is achieved like this: it is belong to the bayonet joint method a kind of.In the annular groove that the pipe fitting socket joint is held in front, be provided with a Y that under hydraulic pressure, can seal voluntarily
XThe oblique crank Z seal ring in the annular groove of described socket joint head outer end, is provided with an elastic opening snap ring, opens a hole for injecting glue between two described annular grooves.During piping erection, with annular groove of pipe end processing, insert pipe earlier, snap ring just snaps in the pipe end groove, injects adhesive by hole for injecting glue then.
In order to make adhesive be full of whole bonding plane, need adhesive to flow from inside to outside during injecting glue.Hole for injecting glue should be opened on the joint socket close with the seal ring edge for this reason, and according to the difference of joint socket length, the distance at hole for injecting glue and seal ring edge is 1～10mm.And have the passage of an adhesive between hole for injecting glue and the seal ring, make adhesive at first be full of the inner end of joint socket, flow from inside to outside then.
The present invention has following advantage:
(1) because the present invention adopts self-pressure-sealed formula seal ring in sealing, has good sealing effect.But the sealing " outpost of the tax office " of " gluing " together more than the present invention, so sealability can be better.
(2) on connecting, adopt the Placement of groove+snap ring, the present invention injects adhesive after snap ring is stuck on the pipe end groove, and the adhesive after the curing plays consolidation to snap ring.Will produce pipe end by the distortion of drawing-down if carry out pull-out test this moment, so have good connection effect.But " seal sticking " " outpost of the tax office " together more than the present invention, so switching performance can be higher.
(3) the sticking card connection of envelope is belong to the bayonet joint method a kind of, has the simple in structure of bayonet joint equally, the advantage that cost is low.
(4) the sticking card connection of envelope can be dismantled:
(I) for the pipeline of new installation, can before injecting glue, carry out hydraulic pressure (0.1 ∽ 0.3MPa) test, if any seepage, extract pipe, reinstall, easy to operate.Behind the injecting glue, generally no longer carry out the hydrostatic test.Because adopt the seal ring that seals voluntarily by hydraulic pressure,, can not leak during high pressure if do not leak during low pressure yet.In addition, the tension resistance of joint behind the injecting glue, near 2000 kgfs, this is very large join strength for the DN15 pipeline.
(II) for the old pipeline of injecting glue, can carry out local heating, make the adhesive efflorescence dismounting place, promptly detachable.
(5) piping erection is simple and direct, convenient, reliable, can realize " foolproof " installation.So sealing, sticking and fastening connection method is the reliability height on the pipeline configuration not only, and the reliability of installing is also high.
Therefore, the present invention possesses the simple in structure of spigot and socket type simultaneously, advantage that cost is low and loose joint formula reliability height, easy-to-dismount advantage.We can say and reached the goal of the invention that advantage that two classes are connected rolls into one.
Its technical basic principle is " envelope ", " gluing ", " card " three's combination.Thereby, make in bayonet joint, also to have the advantage that the loose joint formula connects simultaneously.
Wherein " envelope " is to adopt self-pressure-sealed mode, so just also needs the other mechanism that gives extruding force unlike the crush seal mode.
Wherein " card " is the mode that adopts the fixed snap ring of adhesive, and " snap ring " firmly snapped in the pipe end groove, so just needs nut or plug screw to come fixed snap ring unlike the loose joint formula.
Wherein the major function of " gluing " is fixed snap ring, and these are different with the bonding ducted bonding notion of tradition.The miscellaneous function of " gluing " is only the sealing effect of seal ring is played humidification with the effect that is connected to snap ring.
(4) description of drawings:
Accompanying drawing is a pipeline junction sectional arrangement drawing of the present invention.
Among the figure: 1, pipe fitting 2, seal ring 3, hole for injecting glue 4, adhesive 5, snap ring
6, pipe
(5) embodiment:
Pipe fitting (1) employing and pipe (6) are with the material stainless steel, by the precision casting manufacturing.Seal ring (2) adopts Y
xThe oblique crank Z seal ring adopts the ethylene propylene diene rubber manufacturing.Slotted collar (5) adopts with tubing and makes with the stainless steel spring silk of material.Adhesive (4) adopts esters of acrylic acid double-component glue.Annular groove of end processing of pipe (6), after pipe inserted, slotted collar (5) just snapped in the groove of pipe end.Inject adhesive (4) by hole for injecting glue (3) then.
Claims (2)
1, a kind of method for connecting thin wall stainless steel pipe seal sticky clamp is characterized in that: be provided with a Y that can seal voluntarily in the annular groove that pipe fitting (1) socket joint is held in front under hydraulic pressure
XOblique crank Z seal ring (2), in the annular groove of described socket joint head outer end, be provided with an elastic opening snap ring (5), between two described annular grooves, open a hole for injecting glue (3), during piping erection, with annular groove of pipe end processing, insert pipe (6) earlier, snap ring (5) just snaps in the pipe end groove, injects adhesive (4) by hole for injecting glue (3) then.
2, a kind of method for connecting thin wall stainless steel pipe seal sticky clamp according to claim 1, it is characterized in that: hole for injecting glue (3) open with seal ring (2) edge on the joint socket of 1～10mm, and have the passage of an adhesive (4) between described hole for injecting glue (3) and the described seal ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101289108A CN101354101A (en) | 2007-07-26 | 2007-07-26 | Method for connecting thin wall stainless steel pipe seal sticky clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101289108A CN101354101A (en) | 2007-07-26 | 2007-07-26 | Method for connecting thin wall stainless steel pipe seal sticky clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101354101A true CN101354101A (en) | 2009-01-28 |
Family
ID=40307044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101289108A Pending CN101354101A (en) | 2007-07-26 | 2007-07-26 | Method for connecting thin wall stainless steel pipe seal sticky clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101354101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146145A (en) * | 2021-01-29 | 2021-07-23 | 朱少强 | Welding-free steel pipe connecting process |
| CN114440019A (en) * | 2020-10-30 | 2022-05-06 | 中国石油化工股份有限公司 | Heavy-calibre non-metallic pipe socket joint connects |
-
2007
- 2007-07-26 CN CNA2007101289108A patent/CN101354101A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440019A (en) * | 2020-10-30 | 2022-05-06 | 中国石油化工股份有限公司 | Heavy-calibre non-metallic pipe socket joint connects |
| CN113146145A (en) * | 2021-01-29 | 2021-07-23 | 朱少强 | Welding-free steel pipe connecting process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090128 |