CN101571446A - Online test structure for flanged-pipe installation quality - Google Patents
Online test structure for flanged-pipe installation quality Download PDFInfo
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- CN101571446A CN101571446A CNA2009100339289A CN200910033928A CN101571446A CN 101571446 A CN101571446 A CN 101571446A CN A2009100339289 A CNA2009100339289 A CN A2009100339289A CN 200910033928 A CN200910033928 A CN 200910033928A CN 101571446 A CN101571446 A CN 101571446A
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Abstract
The invention relates to an online test technique for flanged-pipe installation quality, in particular to an online test structure for flanged-pipe installation quality. According to a technical proposal provided by the invention, the online test structure for the flanged-pipe installation quality comprises a first flange positioned at the end part of a first pipe, a second flange positioned at the end part of a second pipe, as well as a gasket positioned between the first flange and the second flange. The structure is characterized in that the first flange is provided with a first pressure test hole through which compressed air passes; the second flange is provided with a second pressure test hole through which compressed air passes; the gasket is provided with a third pressure test hole; and the first pressure test hole, the second pressure test hole and the third pressure test hole are all communicated. The structure has the advantage of facilitating the laying and inspection of pipelines.
Description
Technical field
The present invention relates to the online experimental technique of a kind of pipe fitting installation quality, the online test structure of specifically a kind of flanged pipe fitting installation quality.
Background technology
When tubing, need carry out pressure test to the pipeline that has just laid, with the withstand voltage situation of check pipe flange junction.Traditional method is after waiting the whole installations of pipeline, to comprise flanged (FLGD) pipe fitting, water flowing pressure testing in pipe, as find that the flange sealing surface of flanged pipe fitting leaks, and then needing the liquid in the blow-down pipe, the workload of doing over again, reinstalling is very big.
Summary of the invention
The objective of the invention is to design the online test structure of a kind of flanged pipe fitting installation quality, with laying and the check that makes things convenient for pipeline.
According to technical scheme provided by the invention, the online test structure of described flanged pipe fitting installation quality, comprise first flange at first pipe fitting end, at second flange of second pipe fitting end and the sealing gasket between first flange and second flange, it is characterized in that: the logical compressed-air actuated first pressure testing hole is set on described first flange, the logical compressed-air actuated second pressure testing hole is set on second flange, the 3rd pressure testing hole is set on sealing gasket; The described first pressure testing hole, the second pressure testing hole and the 3rd pressure testing hole all are communicated with.
The center line in the described first pressure testing hole, the second pressure testing hole and the 3rd pressure testing hole and first flange are or/and the parallel axes of second flange; And the described first pressure testing hole, the second pressure testing hole and the 3rd pressure testing hole are through hole.
Perhaps, the center line in the described first pressure testing hole, the second pressure testing hole and the 3rd pressure testing hole and first flange are or/and the parallel axes of second flange; And the described first pressure testing hole and the second pressure testing hole are counterbore; On first flange, be provided with along first radial hole of the radial arrangement of first flange, on second flange, be provided with along second radial hole of the radial arrangement of second flange; The inner of described first radial hole is communicated with the inner in the described first pressure testing hole; The inner of described second radial hole is communicated with the inner in the described second pressure testing hole.
In the outer end in the described first pressure testing hole first joint is set, second joint is set in the outer end in the described second pressure testing hole.Perhaps first joint is set, second joint is set in the outer end of described second radial hole in the outer end of described first radial hole.Ring groove along circumferential arrangement all is set on the end face of first flange and the relative side of second flange, and the ring groove on first flange is communicated with the first pressure testing hole, and the ring groove on second flange is communicated with the second pressure testing hole.
After being used to check flange to install, the installation quality of flange, the sealing reliability of check flange gasket.Traditional method is after waiting the whole installations of pipeline, comprise flanged (FLGD) pipe fitting, water flowing pressure testing in pipe, as the flange sealing surface of finding flanged pipe fitting leaks, and then needs the liquid in the blow-down pipe, and the workload of doing over again, reinstalling is very big, the present invention can check the installation quality of flange immediately after flange is installed, can do over again if any problem at once, can shorten the pipeline test adjustment time, using water wisely.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 attempts 1 A-A view.
Embodiment
As shown in the figure: the online test structure of flanged pipe fitting installation quality, comprise first flange 4 in first pipe fitting, 1 end, the sealing gasket 8 that second flange 7 in second pipe fitting, 13 ends reaches between first flange 4 and second flange 7, it is characterized in that: the logical compressed-air actuated first pressure testing hole 2 is set on described first flange 4, the logical compressed-air actuated second pressure testing hole 12 is set on second flange 7, the 3rd pressure testing hole 10 is set on sealing gasket 8; The described first pressure testing hole 2, the second pressure testing hole 12 and the 3rd pressure testing hole 10 all are communicated with.After first pipe fitting 1 and second pipe fitting 13 are in place, just can carry out pressure testing.During the beginning pressure testing, the import through the first pressure testing hole 2 of pressurized air or water under high pressure enters in the first pressure testing hole 2, and then in the 3rd pressure testing hole 10 enters the second pressure testing hole 12, endpiece in the second pressure testing hole 12 connects tensimeter, increase along with pressure gauge reading, pressure in each pressure testing hole constantly rises, after reaching setting value, the beginning pressurize, after pressurize a period of time, observe between the faying face of sealing gasket 8 and first flange 4 and second flange 7 and first flange 4, whether gas leakage or infiltration are arranged between second flange 7 and pipe fitting separately, if gas leakage or infiltration are arranged, then indicate the sealing gasket 8 and first flange 4 and second flange 7, and being connected between flange and pipe fitting, seal badly, need to handle again.If not gas leakage or infiltration, then face seal is functional, can continue to lay remaining pipeline.Carry out the pressure testing check after utilizing this device just to need not to wait all pipelines all to lay again, can after laying a segment pipe,, make things convenient for the laying and the check of pipeline with regard in time carrying out the pressure testing check.
The center line in the described first pressure testing hole 2, the second pressure testing hole 12 and the 3rd pressure testing hole 10 can with first flange 4 or/and the parallel axes of second flange 7; And the described first pressure testing hole 2, the second pressure testing hole 12 and the 3rd pressure testing hole 10 are through hole.At this moment, first joint 5 should be set in the outer end of described first radial hole 3, second joint 6 is set in the outer end of described second radial hole 9.This arrangement is fairly simple, but all draws on the end face of flange because of joint, tensimeter etc., may some trouble during operation.During pressure testing, can on first joint 5, utilize flexible pipe to connect pressure device, on second joint 6, connect tensimeter.
Also can the center line in the described first pressure testing hole 2, the second pressure testing hole 12 and the 3rd pressure testing hole 10 with first flange 4 or/and the parallel axes of second flange 7; And the described first pressure testing hole 2 and the second pressure testing hole 12 are counterbore; On first flange 4, be provided with along first radial hole 3 of the radial arrangement of first flange 4, on second flange 7, be provided with along second radial hole 9 of the radial arrangement of second flange 7; The inner of described first radial hole 3 is communicated with the inner in the described first pressure testing hole 2; The inner of described second radial hole 9 is communicated with the inner in the described second pressure testing hole 12.At this moment, first joint 5 should be set in the outer end in the described first pressure testing hole 2, second joint 6 is set in the outer end in the described second pressure testing hole 12.This arrangement operates can be more convenient, because first joint 5 and second joint 6 all are positioned on the peripheral surface of flange, and can be more smoothly when utilizing flexible pipe to connect pressure device or tensimeter.
Be communicated with the first pressure testing hole 2 all being provided with along the ring groove 11 on ring groove 11, the first flanges 4 of circumferential arrangement on the end face of first flange 4 and second flange, 6 relative sides, the ring groove 11 on second flange 6 is communicated with the second pressure testing hole 12.After being provided with ring groove 11, can make pressurized air or High-Pressure Water faying face through whole sealing gasket 8 and first flange 4 and second flange 6, guarantee that the sealing property at all junction surfaces can both obtain check.
Claims (6)
1, the online test structure of flanged pipe fitting installation quality, comprise first flange (4) that is positioned at first pipe fitting (1) end, be positioned at second flange (7) of second pipe fitting (13) end and be positioned at first flange (4) and second flange (7) between sealing gasket (8), it is characterized in that: the logical compressed-air actuated first pressure testing hole (2) is set on described first flange (4), the logical compressed-air actuated second pressure testing hole (12) is set on second flange (7), the 3rd pressure testing hole (10) is set on sealing gasket (8); The described first pressure testing hole (2), the second pressure testing hole (12) and the 3rd pressure testing hole (10) all are communicated with.
2, the online test structure of flanged according to claim 1 pipe fitting installation quality is characterized in that: the center line in the described first pressure testing hole (2), the second pressure testing hole (12) and the 3rd pressure testing hole (10) and first flange (4) are or/and the parallel axes of second flange (7); And the described first pressure testing hole (2), the second pressure testing hole (12) and the 3rd pressure testing hole (10) are through hole.
3, the online test structure of flanged according to claim 1 pipe fitting installation quality is characterized in that: the center line in the described first pressure testing hole (2), the second pressure testing hole (12) and the 3rd pressure testing hole (10) with first flange (4) or/and the parallel axes of second flange (7); And the described first pressure testing hole (2) is counterbore with the second pressure testing hole (12); On first flange (4), be provided with along first radial hole (3) of the radial arrangement of first flange (4), on second flange (7), be provided with along second radial hole (9) of the radial arrangement of second flange (7); The inner of described first radial hole (3) is communicated with the inner in the described first pressure testing hole (2); The inner of described second radial hole (9) is communicated with the inner in the described second pressure testing hole (12).
4, the online test structure of flanged as claimed in claim 1 or 2 pipe fitting installation quality is characterized in that: in the outer end in the described first pressure testing hole (2) first joint (5) is set, in the outer end in the described second pressure testing hole (12) second joint (6) is set.
5, as the online test structure of flanged pipe fitting installation quality as described in the claim 3, it is characterized in that: in the outer end of described first radial hole (3) first joint (5) is set, second joint (6) is set in the outer end of described second radial hole (9).
6, as the online test structure of flanged pipe fitting installation quality as described in the claim 1,2 or 3, it is characterized in that: the ring groove (11) along circumferential arrangement all is set on the end face of first flange (4) and the relative side of second flange (6), ring groove (11) on first flange (4) is communicated with the first pressure testing hole (2), and the ring groove (11) on second flange (6) is communicated with the second pressure testing hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100339289A CN101571446A (en) | 2009-05-27 | 2009-05-27 | Online test structure for flanged-pipe installation quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100339289A CN101571446A (en) | 2009-05-27 | 2009-05-27 | Online test structure for flanged-pipe installation quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571446A true CN101571446A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100339289A Pending CN101571446A (en) | 2009-05-27 | 2009-05-27 | Online test structure for flanged-pipe installation quality |
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| CN (1) | CN101571446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422854A (en) * | 2015-12-29 | 2016-03-23 | 周庆涛 | Self-pressure test gasket and application method thereof |
-
2009
- 2009-05-27 CN CNA2009100339289A patent/CN101571446A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422854A (en) * | 2015-12-29 | 2016-03-23 | 周庆涛 | Self-pressure test gasket and application method thereof |
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Open date: 20091104 |