CN101294860A - Quality detecting method for inner lining old pipe - Google Patents
Quality detecting method for inner lining old pipe Download PDFInfo
- Publication number
- CN101294860A CN101294860A CNA2008100500327A CN200810050032A CN101294860A CN 101294860 A CN101294860 A CN 101294860A CN A2008100500327 A CNA2008100500327 A CN A2008100500327A CN 200810050032 A CN200810050032 A CN 200810050032A CN 101294860 A CN101294860 A CN 101294860A
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- CN
- China
- Prior art keywords
- pressure
- inner lining
- pipe
- old pipe
- tightness
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 20
- 210000002445 nipple Anatomy 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a method for detecting the quality of a lining pipeline, which comprises the following steps: the hermetic pressure-bearing structure of the old lining pipeline is constructed, i.e. the two ends of the old lining pipeline are respectively hermetically connected with a seal joint, wherein a pressure meter is installed on the seal joint at one end of the old lining pipeline, a water inlet tube communicates with the seal joint at the other end thereof and with a hand-operating test pump; clean water is taken as a detection medium, and the hand-operating test pump is taken as a pressure lifting tool to conduct bearing strength detection for the hermetic pressure-bearing structure; the pressure is reduced to tightness detecting pressure of 18MPa after the bearing strength detection, and the tightness detecting pressure is kept for 24 hours, i.e. the tightness detection is conducted for the hermetic pressure-bearing structure; the pressure is immediately relieved after the tightness detection; the pressure relieving speed is not more than 1.0MPa/min. The method can detect the repair quality of the old lining pipeline, and avoid secondary excavation. Furthermore, the method has the advantages of simple detection means, applicability and less auxiliary equipment, thereby being suitable for field operation.
Description
Technical field
The present invention relates to a kind of recovery technique of old pipeline, specifically, relate to a kind of quality determining method of inner lining old pipe.
Background technology
The technology of the interspersed method repairing used pipeline of employing liner is applied range not only, and along with the continuous upgrading of technology, it is ripe that this recovery technique day by day is tending towards, but in practical application in recent years, find that still there is certain deficiency in it, main problem is: if inner liner is tight inadequately with combining of old inner-walls of duct, perhaps the two becomes flexible in conjunction with occurring along with the passing of using the time again, the especially short grained sandstone of then ducted conveying medium enter between inner liner and the old inner-walls of duct easily, so just very easily destroy the pipeline after repairing, and then influence is produced;
For addressing this problem, people add the flange of the usefulness that is tightly connected respectively at the two ends of old pipeline, and inner liner turned up along described flange form inner liner end flange, promptly form radially protection in the end of flange, constitute inner lining old pipe with this, thereby avoid the problem of above existence with end protection;
Be the check repairing quality, reduce the risk of repairing failure, the unnecessary economic loss of avoiding the secondary excavation and being brought thus, must carry out quality testing to the old pipeline after repairing, and for this technology, a present difficult problem that faces is how after reparation, carry out quality testing before being tightly connected before and after the inner lining old pipe.
In order to overcome the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of detection means is simple and practical, the quality determining method of the inner lining old pipe that is suitable for field work thereby provide.
The objective of the invention is to realize by following technical scheme:
A kind of quality determining method of inner lining old pipe, this method may further comprise the steps:
(1), structure has the seal and pressure bearing structure of inner lining old pipe, a sealing adaptor promptly is tightly connected respectively at the inner lining old pipe two ends, on the sealing adaptor of one end tensimeter is installed, is communicated with water inlet pipe on the sealing adaptor of its other end, described water inlet pipe is communicated with manual pressure test pump;
(2), be to detect medium with the clean water, be the instrument of boosting with manual pressure test pump, the seal and pressure bearing structure is carried out bearing resistance to be detected: the process of boosting adopts the method for boosting step by step, and the rate of rise is less than 0.5MPa/min, after each boost phase is finished, time-out boosts, and voltage stabilizing at least 5 minutes, if pipeline does not have pressure drop, do not have and reveal, then continue to boost, reach 26.4MPa until pressure, and voltage stabilizing at least 10 minutes;
(3), after bearing resistance detect to finish, be depressurized to the tightness detected pressures immediately, the tightness detected pressures is 18MPa, and voltage stabilizing at least 24 hours, promptly the seal and pressure bearing structure is carried out tightness and detect, release immediately after tightness detects and finishes, release speed is no more than 1.0MPa/min.
Based on above-mentioned, in step (1), described inner lining old pipe comprises old pipeline with inner liner and the joint flange that is arranged on old pipe ends, and described inner liner turns up along described joint flange and forms the PE flange; Described sealing adaptor comprises the pipe nipple pipeline of end sealing and is arranged on the joint flange of the pipe nipple pipeline other end, the joint flange at described joint flange and inner lining old pipe two ends is supporting, and described sealing adaptor is connected by flange seal with the two ends of described inner lining old pipe.
The present invention has outstanding substantive distinguishing features and obvious improvement with respect to prior art, specifically, following beneficial effect is arranged:
1, adopts this method can check the repairing quality of inner lining old pipe, reduce the risk of repairing failure, the unnecessary economic loss of avoiding the secondary excavation and being brought thus;
2, this method is concrete, comprehensive to the detection of inner lining old pipe, can fully detect every main performance index of repairing the old pipeline in back, and then is beneficial to the operation conditions of controlling piping system;
3, this method detection means is simple, practical, and auxiliary device seldom is suitable for field work.
Description of drawings
Fig. 1 is the structural representation of seal and pressure bearing structure of the present invention.
Embodiment
For advantage of the present invention and technical characterictic further are described, provide the specific embodiment of the present invention below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of quality determining method of inner lining old pipe, this method may further comprise the steps:
(1), structure has the seal and pressure bearing structure of inner lining old pipe: a sealing adaptor promptly is tightly connected respectively at the inner lining old pipe two ends, tensimeter 10 is installed on the sealing adaptor of its left end, be communicated with water inlet pipe 12 on the sealing adaptor of its right-hand member, described water inlet pipe 12 is communicated with manual pressure test pump 13;
Specifically, the sealing adaptor of left end comprises the pipe nipple pipeline 6 of end sealing and is arranged on the joint flange 5 of pipe nipple pipeline 6 other ends, penstocks 14 are installed on pipe nipple pipeline 6, and penstocks 14 are provided with valve 9, and penstocks 14 tops are provided with tensimeter 10;
The sealing adaptor of right-hand member comprises the pipe nipple pipeline 8 of end sealing and is arranged on the joint flange 7 of pipe nipple pipeline 8 other ends, water inlet pipe 12 is installed on pipe nipple pipeline 8, water inlet pipe 12 is provided with valve 11, and water inlet pipe 12 1 ends are communicated with manual pressure test pump 13, and manual pressure test pump 13 connects the water source;
Described inner lining old pipe comprises old pipeline 1 with inner liner 3 and the joint flange (2,4) that is arranged on old pipeline 1 two ends, and described inner liner 3 turns up along described joint flange (2,4) end and is formed with the PE flange;
Described joint flange (5,7) is supporting with the joint flange (2,4) at inner lining old pipe two ends, and described sealing adaptor is connected by flange seal with the two ends of described inner lining old pipe.
(2), be to detect medium with the clean water, be the instrument of boosting with manual pressure test pump, the seal and pressure bearing structure is carried out bearing resistance to be detected: the process of boosting adopts the method for boosting step by step, and the rate of rise is less than 0.5MPa/min, after each boost phase is finished, time-out boosts, and voltage stabilizing 5 minutes, if pipeline does not have pressure drop, do not have and reveal, then continue to boost, reach 26.4MPa until pressure, and voltage stabilizing 10 minutes.
(3), after bearing resistance detects and finishes, be depressurized to the tightness detected pressures immediately, the tightness detected pressures is 18MPa, and voltage stabilizing 24 hours, promptly the seal and pressure bearing structure is carried out tightness and detect, release immediately after tightness detects and finishes, release speed is no more than 1.0MPa/min, the tightness testing process should be kept a close eye on and observe the pressure variation, and the build-up of pressure that prevents to heat up raises and damages the seal and pressure bearing structure.
The process of boosting should be taken care, and personnel forbid to stand near the seal and pressure bearing structure, or flange connects seam crossing, more must not be over against valve, manometer junction.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (2)
1, a kind of quality determining method of inner lining old pipe is characterized in that, this method may further comprise the steps:
(1), structure has the seal and pressure bearing structure of inner lining old pipe, a sealing adaptor promptly is tightly connected respectively at the inner lining old pipe two ends, on the sealing adaptor of one end tensimeter is installed, is communicated with water inlet pipe on the sealing adaptor of its other end, described water inlet pipe is communicated with manual pressure test pump;
(2), be to detect medium with the clean water, be the instrument of boosting with manual pressure test pump, the seal and pressure bearing structure is carried out bearing resistance to be detected: the process of boosting adopts the method for boosting step by step, and the rate of rise is less than 0.5MPa/min, after each boost phase is finished, time-out boosts, and voltage stabilizing at least 5 minutes, if pipeline does not have pressure drop, do not have and reveal, then continue to boost, reach 26.4MPa until pressure, and voltage stabilizing at least 10 minutes;
(3), after bearing resistance detect to finish, be depressurized to the tightness detected pressures immediately, the tightness detected pressures is 18MPa, and voltage stabilizing at least 24 hours, promptly the seal and pressure bearing structure is carried out tightness and detect, release immediately after tightness detects and finishes, release speed is no more than 1.0MPa/min.
2, the quality determining method of a kind of inner lining old pipe according to claim 1, it is characterized in that: in step (1), described inner lining old pipe comprises old pipeline with inner liner and the joint flange that is arranged on old pipe ends, and described inner liner turns up along described joint flange end and is formed with the PE flange; Described sealing adaptor comprises the pipe nipple pipeline of end sealing and is arranged on the joint flange of the pipe nipple pipeline other end, the joint flange at described joint flange and inner lining old pipe two ends is supporting, and described sealing adaptor is connected by flange seal with the two ends of described inner lining old pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500327A CN101294860B (en) | 2008-06-16 | 2008-06-16 | Quality detecting method for inner lining old pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500327A CN101294860B (en) | 2008-06-16 | 2008-06-16 | Quality detecting method for inner lining old pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294860A true CN101294860A (en) | 2008-10-29 |
| CN101294860B CN101294860B (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100500327A Expired - Fee Related CN101294860B (en) | 2008-06-16 | 2008-06-16 | Quality detecting method for inner lining old pipe |
Country Status (1)
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| CN (1) | CN101294860B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435735B (en) * | 2008-12-05 | 2010-06-16 | 青岛泰德汽车轴承有限责任公司 | Method and device for detecting sealing property of seal bearing |
| CN102323016A (en) * | 2011-08-30 | 2012-01-18 | 河南龙宇煤化工有限公司 | Leak finding tool for pressure equipment |
| CN101718610B (en) * | 2009-11-03 | 2012-02-08 | 神华集团有限责任公司 | Leakage detecting method for hydraulic end of high-pressure five-plunger pump |
| CN102749173A (en) * | 2011-04-17 | 2012-10-24 | 哈电集团哈尔滨电站阀门有限公司 | Block valve hydraulic test device |
| CN102913760A (en) * | 2011-08-02 | 2013-02-06 | 苏州勃朗科技有限公司 | Process method for online detecting seepage and leakage of condenser |
| CN103471791A (en) * | 2013-09-25 | 2013-12-25 | 浪潮电子信息产业股份有限公司 | Water pipe leakage test method for water cooling machine cabinet |
| CN103574215A (en) * | 2012-08-02 | 2014-02-12 | 五冶集团上海有限公司 | PE pipeline pressure test blind plate |
| CN109611694A (en) * | 2019-01-04 | 2019-04-12 | 广东长青（集团）股份有限公司 | A kind of gas leak detection apparatus detects the control method of tested pipeline gas leakage |
| CN109780365A (en) * | 2019-03-29 | 2019-05-21 | 江苏爱索新材料科技有限公司 | A kind of heating method for flanging for no-dig technique pipeline rehabilitation |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140057Y (en) * | 1992-10-28 | 1993-08-11 | 上海锅炉厂 | Water-pressure test device of self-sealed pumping water for waterpipe |
| CN2283774Y (en) * | 1997-03-05 | 1998-06-10 | 曾立军 | Overturn lining flexible pipe for repair of pipe |
| JP2005221348A (en) * | 2004-02-04 | 2005-08-18 | Laserfront Technologies Inc | Piping with leak detecting function and leak detector |
| CN1690676A (en) * | 2004-04-20 | 2005-11-02 | 北京城市排水集团有限责任公司 | Method for air tightness detection of sewage conduit |
| CN2713452Y (en) * | 2004-05-25 | 2005-07-27 | 潍坊亚星集团有限公司 | Inside liner leakage detector for composite steel tube |
| CN2819202Y (en) * | 2005-09-13 | 2006-09-20 | 张道富 | Pipeline leakage tester |
| CN2886535Y (en) * | 2005-12-30 | 2007-04-04 | 中国石油天然气股份有限公司乌鲁木齐石化分公司 | Apparatus for positioning and leakage detecting of tube bundle of surface evaporation type air cooler |
| CN2916604Y (en) * | 2006-04-24 | 2007-06-27 | 上品综合工业股份有限公司 | Leakage detection device for inner liner of metal tube |
| EP1860420A1 (en) * | 2006-05-23 | 2007-11-28 | Geberit Technik Ag | Device and method for filling and pressure testing of pipe systems with purified water |
-
2008
- 2008-06-16 CN CN2008100500327A patent/CN101294860B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435735B (en) * | 2008-12-05 | 2010-06-16 | 青岛泰德汽车轴承有限责任公司 | Method and device for detecting sealing property of seal bearing |
| CN101718610B (en) * | 2009-11-03 | 2012-02-08 | 神华集团有限责任公司 | Leakage detecting method for hydraulic end of high-pressure five-plunger pump |
| CN102749173A (en) * | 2011-04-17 | 2012-10-24 | 哈电集团哈尔滨电站阀门有限公司 | Block valve hydraulic test device |
| CN102749173B (en) * | 2011-04-17 | 2015-10-07 | 哈电集团哈尔滨电站阀门有限公司 | Stifled valve water test unit |
| CN102913760A (en) * | 2011-08-02 | 2013-02-06 | 苏州勃朗科技有限公司 | Process method for online detecting seepage and leakage of condenser |
| CN102323016A (en) * | 2011-08-30 | 2012-01-18 | 河南龙宇煤化工有限公司 | Leak finding tool for pressure equipment |
| CN103574215A (en) * | 2012-08-02 | 2014-02-12 | 五冶集团上海有限公司 | PE pipeline pressure test blind plate |
| CN103574215B (en) * | 2012-08-02 | 2015-09-30 | 五冶集团上海有限公司 | PE pipeline pressure test blind plate |
| CN103471791A (en) * | 2013-09-25 | 2013-12-25 | 浪潮电子信息产业股份有限公司 | Water pipe leakage test method for water cooling machine cabinet |
| CN109611694A (en) * | 2019-01-04 | 2019-04-12 | 广东长青（集团）股份有限公司 | A kind of gas leak detection apparatus detects the control method of tested pipeline gas leakage |
| CN109780365A (en) * | 2019-03-29 | 2019-05-21 | 江苏爱索新材料科技有限公司 | A kind of heating method for flanging for no-dig technique pipeline rehabilitation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101294860B (en) | 2010-04-21 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN ZHONGTUO PIPELINE ENGINEERINGS CO., LTD. Free format text: FORMER NAME: ZHONGTUO PIPELINE CHEANING AND REPAIRING ENGINEERING CO LTD, PUYANG CITY |
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| CP01 | Change in the name or title of a patent holder |
Address after: 457001 No. 95 Shengli East Road, Henan, Puyang Patentee after: Henan Zhongtuo Pipeline Engineering Co., Ltd. Address before: 457001 No. 95 Shengli East Road, Henan, Puyang Patentee before: Zhongtuo Pipeline Cheaning and Repairing Engineering Co., Ltd., Puyang City |
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Owner name: HE'NAN ZHONGTUO PETROLEUM ENGINEERING TECHNOLOGY C Free format text: FORMER NAME: HE'NAN ZHONGTUO PIPELINE ENGINEERING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 457001 No. 95 Shengli East Road, Henan, Puyang Patentee after: Henan Zhongtuo Petroleum Engineering Technology Co., Ltd. Address before: 457001 No. 95 Shengli East Road, Henan, Puyang Patentee before: Henan Zhongtuo Pipeline Engineering Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Quality detecting method for inner lining old pipe Effective date of registration: 20170126 Granted publication date: 20100421 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: Henan Zhongtuo Petroleum Engineering Technology Co., Ltd. Registration number: 2017410000004 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171117 Granted publication date: 20100421 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: Henan Zhongtuo Petroleum Engineering Technology Co., Ltd. Registration number: 2017410000004 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Quality detecting method for inner lining old pipe Effective date of registration: 20171218 Granted publication date: 20100421 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: Henan Zhongtuo Petroleum Engineering Technology Co., Ltd. Registration number: 2017410000029 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20210616 |