CN1908610A - Process and device for inner pressure type conduits interface pressure testing - Google Patents
Process and device for inner pressure type conduits interface pressure testing Download PDFInfo
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- CN1908610A CN1908610A CN 200610111325 CN200610111325A CN1908610A CN 1908610 A CN1908610 A CN 1908610A CN 200610111325 CN200610111325 CN 200610111325 CN 200610111325 A CN200610111325 A CN 200610111325A CN 1908610 A CN1908610 A CN 1908610A
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Abstract
The related pressure test method for an interface of internal gas pressure pipe comprises: putting a heterotype rubber ring as T-shaped section with opening gap on interface of faucet pipe, inner expanding the rubber ring to open a drain valve, filling water and gas at one time till full of water; closing the valve, continuing to fill water and force pressure to seal the interface section gap as a cavity, and continuing to fill water to detect the pressure-bearing capacity. Besides, the used device also comprises a water inject pump and a pressure gage; the detachable expand ring includes three arc steel plates every with a mosaic opening fixed together by bolts.
Description
Technical field:
The present invention relates to water supply and drainage pipe joint pressure-measuring method and device.
Background technology:
It is full irrigation clear water pressure testing in pipeline that the method that pressure testing adopts is checked and accepted in domestic water supply and drainage pipeline construction, execution be GB50268-97 " code for construction and acceptance of water supply and sewerage pipeline engineering " national standard.This method pressure testing cost height, a large amount of precious tap water of waste, the pressure testing interface can only find that whole pipeline leaks, and is difficult to determine concrete mouth of pipe seepage.In developed countries such as U.S., Europe, days, all adopt the pipe joint place pressure testing separately, use the method for steel sleeve capsule water-filling sealing.Concrete method is in both sides, pipe joint junction a capsule to be set respectively, with supporting capsule in the steel sleeve, by giving the pressurization of capsule water-filling, make bell and spigot pipe joint place form a sealed cavity, give the bearing capacity of sealed cavity water-filling pressurization back check pipeline bell and spigot interface afterwards, thereby judge whether pipe joint is qualified.The pipe joint pressure testing device is formed (seeing accompanying drawing 1) by four parts, i.e. steel sleeve 1, capsule 2, waterflood pump 3 and tensimeter 4, and wherein, capsule is provided with water inlet pipe 11, tensimeter 4, inlet valve 5, gas outlet 10 and vent valve 12; There are water inlet pipe 11 and gas outlet 10 to pass in the steel sleeve 1.6 is the bell and spigot pipe joint among the figure.Heavy, the complex operation of this device, water consumption is many and leakproofness is poor.
Summary of the invention:
The purpose of this invention is to provide a kind of inner pressure type conduits interface pressure testing method and apparatus, with Europe, the United States, day etc. country when the pressure testing of bell and spigot pipe joint, adopt steel sleeve inner support two capsules, pressurize by water-filling in two capsules, make bell and spigot pipe joint place form a ring seal cavity, give the classic method of the bearing capacity at sealed cavity water-filling check bell and spigot pipe joint place at last, change into and utilize pipe joint both ends of the surface gap to carry out the method that pressure measurement judges that pipe joint is whether qualified.
This method claims the inner pressure type conduits interface pressure testing method, its method is to place the special-shaped cushion rubber that a cross section is " protruding " font and opened gap is arranged at pipe joint both ends of the surface gap location, after special-shaped cushion rubber is used detachable tensioner ring inner support, open drain tap and water filling in special-shaped cushion rubber gap, close drain tap after the fills with water, continue the water-filling pressurization, the opening two ends of special-shaped cushion rubber are squeezed to both sides with hydraulic pressure and are expanded, two pipe end face gaps are sealed and after the pipe joint place forms a sealed cavity, continue again to special-shaped cushion rubber water-filling pressurization, according to the time of sealed cavity constant pressure, just can check out the bearing capacity of pipe joint place pipe joint cushion rubber, promptly check out pipe joint whether qualified.
The inner pressure type conduits interface pressure testing device, comprise detachable tensioner ring, special-shaped cushion rubber, waterflood pump and tensimeter, wherein, special-shaped cushion rubber cross section is " protruding " font and opened gap is arranged, special-shaped cushion rubber lower end side is equipped with water inlet pipe and water inlet rapid-acting coupling, upper side is equipped with gas outlet, drain tap, and the cushion rubber opened gap communicates with water inlet pipe and drain tap; Disassembled expand ring has the curved plate splicing of inlaying the rim of the mouth by three, is integral by screw retention.During use, special-shaped cushion rubber is placed on the gap location of pipe joint both ends of the surface, special-shaped cushion rubber is with detachable tensioner ring inner support.
Beneficial effect is: the structure dexterity is light, and airtight reliability height is easy to operate, water consumption seldom, every pressure testing once only gets final product with 500 ml waters.
Description of drawings:
Fig. 1 is existing pipe joint pressure testing device structural representation.
Fig. 2 is an inner pressure type conduits interface pressure testing apparatus structure synoptic diagram.
Fig. 3 is an A portion enlarged drawing among Fig. 2.
Fig. 4 is special-shaped cushion rubber, detachable packing scheme of installation.
Fig. 5 is a B portion enlarged drawing among Fig. 4.
Embodiment:
See accompanying drawing 2, the present invention is the inner pressure type conduits interface pressure testing method, its method is to place the special-shaped cushion rubber that a cross section is " protruding " font and opened gap is arranged at pipe joint both ends of the surface gap location, after special-shaped cushion rubber is used detachable tensioner ring inner support, open drain tap and water filling in special-shaped cushion rubber gap, close drain tap after the fills with water, continue the water-filling pressurization, the opening two ends of special-shaped cushion rubber are squeezed to both sides with hydraulic pressure and are expanded, two pipe end face gaps are sealed and after the pipe joint place forms a sealed cavity, continue water-filling pressurization in special-shaped cushion rubber again, according to the time of sealed cavity constant pressure, just can check out the bearing capacity of pipe joint place pipe joint cushion rubber, promptly check out pipe joint whether qualified.
The principle of work of inner pressure type conduits interface pressure testing method is as follows:
As shown in Figure 2, pipe joint both ends of the surface gap location is placed the special-shaped cushion rubber 7 that a cross section is " protruding " font and opened gap is arranged, when the pressurization of water-filling in special-shaped cushion rubber opened gap 9, the opening two ends of special-shaped cushion rubber 7 increase to both sides crowded bloated with hydraulic pressure, pipe joint two pipe end face gap locations are sealed, form a sealing load chamber 14 between it and the pipe joint cushion rubber 15, the big more inner pressuring sealing of water-filling pressure is just good more.At this moment, the special-shaped cushion rubber 7 of " protruding " font is subjected to three power (seeing accompanying drawing 3), and first is the gross thrust P that makes progress that special-shaped cushion rubber is produced by hydraulic pressure in the pipe joint both ends of the surface gap; Second is the lateral surface of the special-shaped cushion rubber opened gap of " protruding " font and downward total frictional resistance 2F that the pipe joint tube wall produces (frictional resistance of end tube wall generation is F), owing to different area with pressure, and total frictional resistance 2F＞gross thrust P; The 3rd is the downward inner support power f that tensioner ring produces, final 2F+f＞＞P.So pressure release neither can take place and leak also and can not produce slippage at bell and spigot pipe joint gap location in special-shaped cushion rubber under the water pressure endogenetic process.
See accompanying drawing 2～Fig. 5, the inner pressure type conduits interface pressure testing device, comprise waterflood pump 3, tensimeter 4, gas outlet 10, water inlet pipe 11 and drain tap 12, it is characterized in that: also be provided with special-shaped cushion rubber 7 and disassembled expand ring 8, special-shaped cushion rubber 7 cross sections are " protruding " font and opened gap 9 are arranged, special-shaped cushion rubber 7 lower end side are equipped with water inlet pipe 11 and water inlet rapid-acting coupling 16, and upper side is equipped with gas outlet 10, drain tap 12, and the opened gap 9 of special-shaped cushion rubber 7 communicates with water inlet pipe 11 and drain tap 12; Disassembled expand ring 8 has the curved plate splicing of inlaying the rim of the mouth by three, is fixed into one by screw 13, and special-shaped cushion rubber 7 is placed on pipe joint both ends of the surface gap location, detachable tensioner ring 8 inner supports of special-shaped cushion rubber 7 usefulness.
Claims (2)
1, the inner pressure type conduits interface pressure testing method, its method is to place the special-shaped cushion rubber that a cross section is " protruding " font and opened gap is arranged at pipe joint both ends of the surface gap location, after special-shaped cushion rubber is used detachable tensioner ring inner support, open drain tap and water filling in special-shaped cushion rubber gap, close drain tap after the fills with water, continue the water-filling pressurization, the opening two ends of special-shaped cushion rubber are squeezed to both sides with hydraulic pressure and are expanded, two pipe end face gaps are sealed and after the pipe joint place forms a sealed cavity, continue water-filling pressurization in special-shaped cushion rubber again, according to the time of sealed cavity constant pressure, just can check out the bearing capacity of pipe joint place pipe joint cushion rubber, promptly check out pipe joint whether qualified.
2, a kind of inner pressure type conduits interface pressure testing device that is used for claim 1 method, comprise waterflood pump (3), tensimeter (4), gas outlet (10), water inlet pipe (11) and drain tap (12), it is characterized in that: be provided with special-shaped cushion rubber (7) and disassembled expand ring (8), special-shaped cushion rubber (7) cross section is " protruding " font and opened gap (9) is arranged, special-shaped cushion rubber (7) lower end side is equipped with water inlet pipe (11) and water inlet rapid-acting coupling (16), upper side is equipped with gas outlet (10), drain tap (12), the opened gap (9) of special-shaped cushion rubber (7) communicates with water inlet pipe (11) and drain tap (12); Disassembled expand ring (8) has the curved plate splicing of inlaying the rim of the mouth by three, is fixed into one by screw (13), and special-shaped cushion rubber (7) is placed on pipe joint both ends of the surface gap location, and special-shaped cushion rubber (7) is with detachable tensioner ring (8) inner support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101113252A CN100432646C (en) | 2006-08-22 | 2006-08-22 | Process and device for inner pressure type conduits interface pressure testing |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101113252A CN100432646C (en) | 2006-08-22 | 2006-08-22 | Process and device for inner pressure type conduits interface pressure testing |
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| CN1908610A true CN1908610A (en) | 2007-02-07 |
| CN100432646C CN100432646C (en) | 2008-11-12 |
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| CNB2006101113252A Active CN100432646C (en) | 2006-08-22 | 2006-08-22 | Process and device for inner pressure type conduits interface pressure testing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886969A (en) * | 2010-06-08 | 2010-11-17 | 天津泰邦管材有限公司 | Device for detecting leakproofness of plastic pipe joints |
| CN101013073B (en) * | 2007-02-08 | 2010-12-08 | 中国建筑第二工程局有限公司 | Cast-in-situs steel reinforced concrete raceway water pressure testing method and device |
| CN101561338B (en) * | 2009-05-11 | 2011-07-27 | 北京市市政工程研究院 | Pipeline pressure test method and device |
| CN103454155A (en) * | 2013-08-18 | 2013-12-18 | 上海华龙测试仪器股份有限公司 | Annular hydraulic test device of metal pipe body |
| CN105531575A (en) * | 2013-09-13 | 2016-04-27 | 德特威勒密封技术德国有限责任公司 | Testing device for testing seals having anchoring feet |
| CN109443661A (en) * | 2018-10-15 | 2019-03-08 | 中国石油集团渤海钻探工程有限公司 | A kind of quick clamping pressure testing device for flange form blowout prevention pipeline |
| CN109655204A (en) * | 2019-01-21 | 2019-04-19 | 北京通成达水务建设有限公司 | Sealing for tubing joints detection structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185739A (en) * | 1996-12-27 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Apparatus and method for checking of joint in flow passage |
| CN2364451Y (en) * | 1999-02-26 | 2000-02-16 | 青岛北钢铸管有限公司 | Large tap water pipe joint seal test device |
| FR2802638B1 (en) * | 1999-12-15 | 2002-03-08 | Org Europeene De Rech | ENCLOSURE TESTING DEVICE |
-
2006
- 2006-08-22 CN CNB2006101113252A patent/CN100432646C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013073B (en) * | 2007-02-08 | 2010-12-08 | 中国建筑第二工程局有限公司 | Cast-in-situs steel reinforced concrete raceway water pressure testing method and device |
| CN101561338B (en) * | 2009-05-11 | 2011-07-27 | 北京市市政工程研究院 | Pipeline pressure test method and device |
| CN101886969A (en) * | 2010-06-08 | 2010-11-17 | 天津泰邦管材有限公司 | Device for detecting leakproofness of plastic pipe joints |
| CN103454155A (en) * | 2013-08-18 | 2013-12-18 | 上海华龙测试仪器股份有限公司 | Annular hydraulic test device of metal pipe body |
| CN105531575A (en) * | 2013-09-13 | 2016-04-27 | 德特威勒密封技术德国有限责任公司 | Testing device for testing seals having anchoring feet |
| CN109443661A (en) * | 2018-10-15 | 2019-03-08 | 中国石油集团渤海钻探工程有限公司 | A kind of quick clamping pressure testing device for flange form blowout prevention pipeline |
| CN109655204A (en) * | 2019-01-21 | 2019-04-19 | 北京通成达水务建设有限公司 | Sealing for tubing joints detection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100432646C (en) | 2008-11-12 |
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