CN105965204A - Special repairing method for expansion joint - Google Patents
Special repairing method for expansion joint Download PDFInfo
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- CN105965204A CN105965204A CN201610375847.7A CN201610375847A CN105965204A CN 105965204 A CN105965204 A CN 105965204A CN 201610375847 A CN201610375847 A CN 201610375847A CN 105965204 A CN105965204 A CN 105965204A
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- Prior art keywords
- expansion joint
- damaged
- blocking
- special type
- zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a special repairing method for an expansion joint. The special repairing method includes the following steps that firstly, oil stain on the surface of a damaged corrugated pipe is removed; secondly, rusty dirt on the surface of the damaged corrugated pipe is removed; thirdly, under the situation that a crack at a damaged position of the corrugated pipe of the expansion joint is large, gap adjusting treatment is conducted; fourthly, after surface cleaning is conducted on the cracked damaged position of the corrugated pipe, a blocking material is used for tightly blocking and compactly sealing all gaps; fifthly, after a blocking layer is cured, a high-temperature-resisting pipeline rubber sealing belt is used for additionally arranging a blocking part on the blocking layer for reinforcing; and sixthly, in order to enhance the sealing effect of the blocking layer, after the rubber sealing belt is installed, locking treatment is conducted on the two sides through stainless steel locking tension bands, and then the gaps can be blocked by the expansion joint, and gas leakage is avoided. The special repairing method has the beneficial effects that the new technology is suitable for blocking repairing of an expansion joint of any pipeline, gas stop is not needed during construction, production is not affected, sparks are not generated, explosive factors are avoided, operation is easy and convenient, safety is achieved, and cost is low.
Description
Technical field
The present invention relates to expansion joint field, especially relate to a kind of expansion joint special type restorative procedure.
Background technology
Install and use expansion joint on the gas pipeline network of all industrial enterprise the most at large, in large quantities, be used for eliminating pipe
The stress that road rising-heat contracting-cold produces, it is ensured that the safe handling of pipe network.Due to use, aging, deformation etc. all the year round
Factor, time and occur that expansion joint ftractures gas leak phenomenon, as disposed the production not only affecting pipe network not in time but also may
Jeopardize safety, can produce during such as the coal gas of leakage poisoning, catch fire, the even disastrous effect such as blast, can not be ignored.
Conventional method of disposal is more to renew expansion joint spare part to solve, but this method not only needs the spare part expense of great number,
And impact of need to stopping the supple of gas or steam when changing repairing produces, if gas piping is also wanted, coal gas purging, displacement etc. are time-consuming to take
The operation of power, also to be often in field high altitude open work the most difficult at scene.
Summary of the invention
It is an object of the invention to provide a kind of expansion joint special type restorative procedure, its when construction without stopping the supple of gas or steam, no
Impact produces, does not go out spark and without detonation factors, easy and simple to handle, safety, low cost.
For solving above-mentioned technical problem, embodiments of the present invention provide a kind of expansion joint special type restorative procedure,
It comprises the steps:
(1) surface of swelling red sandstone processes
The oil removal of S1. damaged bellows surface: utilize environment-friendlywater-based water-based cleaning agent tentatively to clean, then use ring
Protecting greasy dirt detergent 755, spraying cleaning Ex-all is only；
The rust deposite of S2. damaged bellows surface is removed: the rust deposite of gas piping selects happy safe rust conversion agent straight
Connect brush at pipeline external surface, end rust deposite layer is converted into black densification priming coat, have after solidification antirust,
Corrosion resistant effect；
S3., in the case of swelling red sandstone breakage splits relatively greatly, carry out adjusting seam to process: utilize instrument by swollen
Swollen joint tension is shunk, and makes the crack of corrugated tube reduce even till joint close, it is simple to closure operation；
(2) the damaged closure of swelling red sandstone processes
S4., at the cracking failure of corrugated tube, stifled tight, the real all gaps of envelope of plugging material after removing surface, are utilized；
S5. after plugged zone solidification, utilize high-temperature resistant pipeline rubber confining zone, plugged zone is added one layer of closure again and mends
By force；
(3) corrugated tube plugged zone fastening
S6. for the sealing effectiveness of strengthening plugged zone, rubber confining zone is locked with rustless steel respectively in both sides after installing
After cranse carries out locking process, expansion joint can be blocked crack and no longer leak gas.
As in step S4 of the expansion joint special type restorative procedure of the present invention, described plugging material is happy safe 596.
As in step S6 of the expansion joint special type restorative procedure of the present invention, rustless steel locking cranse have for
Periodically tighten solid lock-screw.
As in step S1 of the expansion joint special type restorative procedure of the present invention, environment-friendlywater-based water-based cleaning agent is happy Thailand
82253。
There is advantages that this new technique is suitable for the expansion joint leak stopping reparation of any pipeline, execute
Man-hour without stopping the supple of gas or steam, do not affect production, do not go out spark without detonation factors, easy and simple to handle, safety, expense are low
Honest and clean, expansion joint high pressure also has corresponding measure to carry out closure reparation when revealing, therefore can meet the stifled of all kinds of expansion joint
Leakage is repaired.
Accompanying drawing explanation
Fig. 1 is that in the present invention, expansion joint special type repairs structural representation.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect,
Below in conjunction with specific embodiment, the present invention is expanded on further.
Seeing Fig. 1, this figure is the structural representation of expansion joint special type closure reinforcement, shows expansion joint in this figure
Corrugated tube 1, the plugged zone 2 being made up of plugging material, rubber confining zone 3 and rustless steel locking cranse 4.
It is described in detail below for concrete expansion joint renovation technique.
A kind of expansion joint special type restorative procedure, it includes the surface process of swelling red sandstone, swelling red sandstone
Damaged closure process, corrugated tube plugged zone fastening, specifically, comprise the steps:
(1) surface of swelling red sandstone processes
The oil removal of S1. damaged bellows surface: utilize environment-friendlywater-based water-based cleaning agent (such as: happy safe 82253)
Preliminary cleaning, then with environmental protection greasy dirt detergent 755, only spray cleaning Ex-all.
The rust deposite of S2. damaged bellows surface is removed: due to the unavailable sandblasting of the rust deposite of gas piping or electricity
Pyrophoric processing mode is produced in dynamic polishings etc., in consideration of it, the rust deposite of gas piping selects happy safe rust conversion agent
Directly brush is at pipeline external surface, end rust deposite layer can be converted into black densification priming coat, have after solidification
Antirust, the function of corrosion resistant.
S3., in the case of swelling red sandstone breakage splits relatively greatly, carry out adjusting seam to process: utilize instrument by swollen
Swollen joint tension is shunk, and makes the crack of corrugated tube reduce even till joint close, it is simple to preferably to block operation.
(2) the damaged closure of swelling red sandstone processes
S4., at the cracking failure of corrugated tube, stifled tight, the real all gaps of envelope of plugging material after removing surface, are utilized,
Here the plugged zone 2 that plugging material is constituted is happy safe 596, and this material is a kind of one-component thermostable silica gel,
Room temperature vulcanization sealant, the body of paste of low volatility, viscosity is splendid and sliding drops down, after atmosphere
Fast setting.Have after solidification tough and tensile, flexible, ageing-resistant, do not shrink or the function such as cracking.Stretching is strong
Degree 380ps i, elongation reaches 380%, high temperature resistant 350 DEG C.
S5., after plugged zone solidification, utilize high-temperature resistant pipeline rubber confining zone 3, plugged zone 2 is added one layer of closure again
Reinforcement, high-temperature resistant pipeline rubber confining zone is a kind of stretchable high-temperature resistant rubber band, has the strongest plasticity,
Have and adapt to the performance that the closure reinforcement of pipelines concave surface seals, in the mistake of rubber seal tape extruding plugged zone
Cheng Zhong, the upper apex of fold of corrugated tube then has due to the extruding of rubber seal tape and is stored on a small quantity, but this not shadow
Ring the plugging effect of plugged zone, because the pleated portions of corrugated tube is less leakage occurs, leakage occurs in time, deposits
The plugging material of amount also can play good plugging effect.
(3) corrugated tube plugged zone fastening
S6. for the sealing effectiveness of strengthening plugged zone, rubber confining zone is locked with rustless steel respectively in both sides after installing
After cranse 4 carries out locking process, expansion joint can be blocked crack and no longer leak gas, this rustless steel locking cranse tool
Have and tighten solid lock-screw for periodically, lock sealing state that is always at this can be protected.
Cranse locked by rustless steel owing to arranging around rubber confining zone, and (two ends arrange adjustment lug, at this
Adjust lug and lock-screw is installed, such that it is able to the elasticity of regulation rustless steel locking cranse) can have
Being sealed by rubber confining zone of effect, due to being relatively large in diameter of corrugated tube, this rustless steel locking cranse can use point
Segmentation structure, and be attached by adjustment they fit lock-screw between each structural sections, this structure designs
It can be avoided that occur local stress to damage during the locking cranse life-time service of major diameter and cause overall mistake
Effect.And the width between the fold of the width corrugated tube setting of rustless steel locking cranse is mutually matched, so may be used
Reduce rustless steel locking cranse to get loose because of displacement or the weakening of fastening effect.And the airtight band of rubber
Inner side can arrange carbon fiber powder, and in the case of repairing structure appearance leakage, carbon fiber powder can selfreparing
The weakness of structure leaks out, and then can know inside when seeing carbon fiber powder in the outside repairing structure
Through leakage occurs, furthermore, carbon fiber powder can also play the effect of leak stopping in weak link.And, also
Path that super-high-current consists of carbon fiber powder can be led to and heat, rubber confining zone be carried out local and melts
Change, thus play corresponding obturation effect.
Restorative procedure provided by the present invention is the experience that all types of expansion joint is repaired in my company's accumulation for many years, creates
Go out the technology of the expansion joint special type closure reinforcement of unusual uniqueness, in the past few years repair the expansion that multiple stage is all types of
The excellent of joint, unanimously obtains the praise of user.
It will be understood by those skilled in the art that the respective embodiments described above are to realize being embodied as of the present invention
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from this
Bright spirit and scope.
Claims (4)
1. expansion joint special type restorative procedure, it is characterised in that it comprises the steps:
(1) surface of swelling red sandstone processes
The oil removal of S1. damaged bellows surface: utilize environment-friendlywater-based water-based cleaning agent tentatively to clean, then use ring
Protecting greasy dirt detergent 755, spraying cleaning Ex-all is only；
The rust deposite of S2. damaged bellows surface is removed: the rust deposite of gas piping selects happy safe rust conversion agent straight
Connect brush at pipeline external surface, end rust deposite layer is converted into black densification priming coat, have after solidification antirust,
Corrosion resistant effect；
S3., in the case of swelling red sandstone breakage splits relatively greatly, carry out adjusting seam to process: utilize instrument by swollen
Swollen joint tension is shunk, and makes the crack of corrugated tube reduce even till joint close, it is simple to closure operation；
(2) the damaged closure of swelling red sandstone processes
S4., at the cracking failure of corrugated tube, stifled tight, the real all gaps of envelope of plugging material after removing surface, are utilized；
S5. after plugged zone solidification, utilize high-temperature resistant pipeline rubber confining zone, plugged zone is added one layer of closure again and mends
By force；
(3) corrugated tube plugged zone fastening
S6. for the sealing effectiveness of strengthening plugged zone, rubber confining zone is locked with rustless steel respectively in both sides after installing
After cranse carries out locking process, expansion joint can be blocked crack and no longer leak gas.
Expansion joint special type restorative procedure the most according to claim 1, it is characterised in that in step S4,
Described plugging material is happy safe 596.
Expansion joint special type restorative procedure the most according to claim 1, it is characterised in that in step S6,
Rustless steel locking cranse has and tightens solid lock-screw for periodically.
Expansion joint special type restorative procedure the most according to claim 1, it is characterised in that in step S1,
Environment-friendlywater-based water-based cleaning agent is happy safe 82253.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375847.7A CN105965204B (en) | 2016-05-31 | 2016-05-31 | Expansion joint special type restorative procedure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375847.7A CN105965204B (en) | 2016-05-31 | 2016-05-31 | Expansion joint special type restorative procedure |
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| CN105965204A true CN105965204A (en) | 2016-09-28 |
| CN105965204B CN105965204B (en) | 2017-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628718A (en) * | 2017-02-09 | 2017-05-10 | 润泰救援装备科技河北有限公司 | Frozen stoppage tool and process |
| CN106895226A (en) * | 2017-03-03 | 2017-06-27 | 新兴能源装备股份有限公司 | A kind of rubber tube small opening fast repairing method |
| CN113829002A (en) * | 2021-10-20 | 2021-12-24 | 北京首钢冷轧薄板有限公司 | Repairing method for cracking of expansion joint of radiant tube of continuous annealing furnace |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417987A (en) * | 1972-05-30 | 1975-12-17 | Premaberg Great Britain Ltd | Device for sealing leaks in pipelines |
| CN201090898Y (en) * | 2007-06-16 | 2008-07-23 | 赵衍芝 | Piping leakage complementing component |
| CN101469801A (en) * | 2007-12-25 | 2009-07-01 | 上海宝钢综合开发公司 | On-line repair method for bellows |
| CN201407457Y (en) * | 2009-05-12 | 2010-02-17 | 连文献 | Multifunctional pipeline plugging and repairing device |
| CN102384337A (en) * | 2011-06-20 | 2012-03-21 | 永升建设集团有限公司 | Rapid plugging method for fiberglass pipeline with water and pressure |
| CN102728992A (en) * | 2012-07-12 | 2012-10-17 | 莱芜钢铁集团有限公司 | Repairing method for trunnion of converter |
| CN104251363A (en) * | 2013-06-26 | 2014-12-31 | 上海梅山钢铁股份有限公司 | Gas pipeline bellows plugging method |
| CN104832746A (en) * | 2015-05-27 | 2015-08-12 | 唐山三友化工股份有限公司 | Flange type large-caliber PE pipeline under-pressure restoration structure and restoration method thereof |
| CN105276331A (en) * | 2014-06-04 | 2016-01-27 | 李雪梅 | Magnetron repairing method |
-
2016
- 2016-05-31 CN CN201610375847.7A patent/CN105965204B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417987A (en) * | 1972-05-30 | 1975-12-17 | Premaberg Great Britain Ltd | Device for sealing leaks in pipelines |
| CN201090898Y (en) * | 2007-06-16 | 2008-07-23 | 赵衍芝 | Piping leakage complementing component |
| CN101469801A (en) * | 2007-12-25 | 2009-07-01 | 上海宝钢综合开发公司 | On-line repair method for bellows |
| CN201407457Y (en) * | 2009-05-12 | 2010-02-17 | 连文献 | Multifunctional pipeline plugging and repairing device |
| CN102384337A (en) * | 2011-06-20 | 2012-03-21 | 永升建设集团有限公司 | Rapid plugging method for fiberglass pipeline with water and pressure |
| CN102728992A (en) * | 2012-07-12 | 2012-10-17 | 莱芜钢铁集团有限公司 | Repairing method for trunnion of converter |
| CN104251363A (en) * | 2013-06-26 | 2014-12-31 | 上海梅山钢铁股份有限公司 | Gas pipeline bellows plugging method |
| CN105276331A (en) * | 2014-06-04 | 2016-01-27 | 李雪梅 | Magnetron repairing method |
| CN104832746A (en) * | 2015-05-27 | 2015-08-12 | 唐山三友化工股份有限公司 | Flange type large-caliber PE pipeline under-pressure restoration structure and restoration method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628718A (en) * | 2017-02-09 | 2017-05-10 | 润泰救援装备科技河北有限公司 | Frozen stoppage tool and process |
| CN106628718B (en) * | 2017-02-09 | 2018-11-20 | 润泰救援装备科技河北有限公司 | Freeze leak stoppage tool and technique |
| CN106895226A (en) * | 2017-03-03 | 2017-06-27 | 新兴能源装备股份有限公司 | A kind of rubber tube small opening fast repairing method |
| CN113829002A (en) * | 2021-10-20 | 2021-12-24 | 北京首钢冷轧薄板有限公司 | Repairing method for cracking of expansion joint of radiant tube of continuous annealing furnace |
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| Publication number | Publication date |
|---|---|
| CN105965204B (en) | 2017-11-03 |
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Address after: Room 102, building 1, 368 Chunhe Road, Baoshan District, Shanghai, 200941 Patentee after: Shanghai Yiping Intelligent Technology Co.,Ltd. Address before: 201901 building 33, No. 318, Youyi Road, Baoshan District, Shanghai Patentee before: SHANGHAI XIANGMAO INDUSTRIAL Co.,Ltd. |