CN107504317B - A kind of non-stop plugging technique of gas pipeline crack formula leakage - Google Patents
A kind of non-stop plugging technique of gas pipeline crack formula leakage Download PDFInfo
- Publication number
- CN107504317B CN107504317B CN201710613497.8A CN201710613497A CN107504317B CN 107504317 B CN107504317 B CN 107504317B CN 201710613497 A CN201710613497 A CN 201710613497A CN 107504317 B CN107504317 B CN 107504317B
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- Prior art keywords
- leakage
- crack
- gas pipeline
- section
- patch
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of non-stop plugging techniques of gas pipeline crack formula leakage, by carrying out glue filling in leakage crack intersegmental part, the closure of leakage crack section is completed in a manner of forming cock body, with preferable plugging effect, combustion gas is avoided to cause secondary gas leakage there is a situation where patch loosens by leaking crack intersegmental part and impact to the patch on its surface；Make to generate certain pressure difference between sealed chamber and gas pipeline, enabling the patch with certain elasticity, deformation occurs, and it is embedded patch partial region and enters to leakage crack intersegmental part, pass through fracture propagation before patch deformation, patch to be relatively easy to deformation to extend to inside crack, on the one hand the patch being embedded into leakage crack intersegmental part plays the role of partition, glue can be effectively avoided to be directly injected into leakage crack intersegmental part situation about causing to leak out to inside gas pipeline, on the other hand play the role of cavity, for placing glue and being smoothly formed by curing cock body.
Description
Technical field
The present invention relates to gas pipeline maintenance technique fields, leak more specifically to a kind of gas pipeline crack formula
Non-stop plugging technique.
Background technique
Gas pipeline is all that be embedded in underground be buried-pipe laying under normal circumstances, does not allow mostly to be safely operated
Aerial laying.Though buried-pipe laying can play a protective role to pipeline, agricultural tillage and ground mankind's activity are not influenced, due to
Natural cause (such as pipeline spontaneous corrosion, chemical attack) or artificial origin (such as drill, dig a well, driving piles, pushing to machine digging
It is first-class) gas pipeline that often results in buried-pipe laying generates either large or small crack, lead to gas leakage.Gas has
Inflammable, explosive and toxic feature just must be in the shortest possible time once fuel gas leaks in gas pipeline
Leak stopping processing is carried out, prevents combustion gas from largely leaking, to guarantee the normal production and living of city dweller and personal safety.
Common blocking method is to be initially switched off gas source, and the gas in gas pipeline is drained, and is then carried out at welding leak repairing
Reason.The drawbacks of this method is: consuming time is long, the combustion gas resource of waste preciousness, pollutes environment and seriously affects people just
Often life.
The patent document of Publication No. CN101862883B discloses a kind of fuel gas pipeline leakage pressurized blocking welding method
It is related to a kind of gas pipeline plugging welding method.The step of non-stop plugging welding method: by the combustion gas of leakage point or leakage seam section
Pipeline cleaning is clean；Semi arch fixture is made, patch piece is pasted on fixture, fixture is installed on away from leakage 1-2 meters
Gas pipeline on, fixture is axially pushed along pipeline, until at pipe leakage；It is symmetrically to balanced gradually clamping screw,
In the end spot welding semi-circular baffle of fixture, gas pipeline at semi-circular baffle and leakage is interrupted welding, last shape in two steps
Integral closing welding bead after carrying out leak detection and preservative treatment, completes backfill.
Above-mentioned technical proposal carries out the sealing at fuel gas pipeline leakage by way of pasting patch, but patch is needle
Surface at leakage is blocked, and at leakage inside do not blocked effectively, due to inside gas pipeline always
Circulation has a combustion gas, and combustion gas can be impacted by the patch on its surface inside at leakage, with the extension of use time, patch
The case where loosening, gas secondary is be easy to cause to leak, there are improvements for the prior art.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of band of gas pipeline crack formula leakage
Press seal deblocking technology, the non-stop plugging technique effectively block fuel gas pipeline leakage crack intersegmental part, have preferable block
Effect can slow down the case where gas secondary leaks.
To achieve the above object, the present invention provides the following technical scheme that a kind of gas pipeline crack formula leakage it is with pressure
Plugging technology, non-stop plugging technique specific steps are as follows:
Step A, the ambient substance excavation that the gas pipeline of leakage crack section occurs is opened, exposes the combustion gas of leakage crack section
Pipeline is simultaneously clean by its removing surface；
Step B, production one can cover the patch of leakage crack section, and patch is fitted in leakage crack section by viscose glue
Top；
Step C, by tapping leakage crack section surface, so that the crack diameter of leakage crack section obtains a degree of expansion
, the leakage crack section after expansion is still located in patch overlay area；
Step D, a shell is set in fuel gas pipeline leakage section, sealed chamber is formed between shell and gas pipeline,
Crack section is leaked to be located in sealed chamber；
Step E, it is provided with inlet on shell, the inlet is communicated with high-pressure pump, and high-pressure pump is towards seal chamber
Chamber interior ventilation, above-mentioned patch are made of elastic material, so that the pressure inside sealed chamber is greater than the pressure in gas pipeline
By force, so that patch elastic deformation, patch partial region, which is embedded, enters to leakage crack intersegmental part；
Step F, sealed chamber internal pressure is kept, and carries out glue filling, filled glue in leakage crack intersegmental part
Water cure forms the cock body that cooperation is embedded with leakage crack section；
Step G, stop high-pressure pump operating, and close inlet；
Step H, it after carrying out necessary leak detection and preservative treatment, is backfilled, the gas pipeline for leaking crack section is buried
In underground.
By using above-mentioned technical proposal, compared with prior art, glue filling is carried out in leakage crack intersegmental part, is passed through
The mode that glue curing forms cock body completes the closure of leakage crack section, has preferable plugging effect, avoids combustion gas by letting out
Leakage crack intersegmental part is impacted to the patch on its surface and there is a situation where patch loosenings to cause secondary gas leakage；Make first
Certain pressure difference is generated between sealed chamber and gas pipeline, enabling the patch with certain elasticity, deformation occurs, and
It is embedded patch partial region and enters to leakage crack intersegmental part, by fracture propagation before patch deformation, enable patch
It is enough relatively easy to deformation to extend to inside crack, is embedded the work on the one hand playing partition into the patch of leakage crack intersegmental part
With, it can effectively avoid glue from being directly injected into leakage crack intersegmental part and cause to leak out to situation inside gas pipeline, it is another
Aspect plays the role of cavity, for placing glue and being smoothly formed by curing cock body.
The present invention is further arranged to: the patch in step B is in long strip type laminated structure, and the patch includes edge
The deformation section in crack segment length direction is leaked, deformation section is located at right above the section of leakage crack, and deformation section cross section is in " Ω "
Shape.
By using above-mentioned technical proposal, the setting of deformation section enables the patch under hyperbaric environment to be smoothly embedded
Leakage crack intersegmental part is entered to, deformation section cross section is in " Ω " structure before high-pressure pump injection, when high-pressure pump injects
Later, deformation section cross section is in inverted " Ω " structure.
The present invention is further arranged to: the patch is made of elastomeric.
By using above-mentioned technical proposal, patch made of elastomeric can also while having preferably elasticity
Preferable structural strength is kept, service life is conducive to extend.
The present invention is further arranged to: the leakage crack intersegmental part glue in step F is filled to be realized by high-pressure injection rifle,
High-pressure injection rifle dispensing end wears shell and extends in the section of leakage crack, offers on the shell for wearing high-pressure injection
The injection orifice of rifle dispensing end.
By using above-mentioned technical proposal, after the deformation section on patch is extended into leakage crack intersegmental part, benefit
The injection of glue is realized with high-pressure injection rifle, injection mode is relatively simple, is convenient for practical operation.
The present invention is further arranged to: the leakage crack intersegmental part glue filling in step F is realized by capsule, is being sealed
Chamber interior is fixed with capsule, and capsule is filled with glue, makes capsules break by squeezing capsule, so that glue stream
Enter to leak crack intersegmental part.
By using above-mentioned technical proposal, after the deformation section on patch is extended into leakage crack intersegmental part, lead to
It crosses extruding capsule and makes capsules break, so that glue flows into leakage crack intersegmental part, capsule structure is simple, is easily installed reality
It applies.
The present invention is further arranged to: the shell includes side wall and roof, and the capsule is fixed on the inside of roof, institute
Roof and snug engagement are stated to realize that roof is displaced towards leakage crack section direction, is connected between roof and side wall by telescopic
It connects.
By using above-mentioned technical proposal, after the deformation section on patch is extended into leakage crack intersegmental part, top
Wall and capsule are displaced towards leakage crack section direction, and after roof is displaced a distance, the capsule on the inside of roof is supported
Gas pipeline side is connect, so that capsule ruptures, the glue curing after capsules break, which is formed with to be embedded with leakage crack section, matches
The cock body of conjunction makes roof can also ensure that sealed chamber while flexible displacement between roof and side wall by telescopic
Leakproofness.
The present invention is further arranged to: the capsule structure and is laid on the inside of roof in the form of sheets, after the capsules break
Glue curing be formed with leakage crack section be embedded cooperation cock body, with cock body be integrally formed and be tightly attached to gas pipeline side
Fixing layer.
By using above-mentioned technical proposal, cock body structure preferably can effectively be sealed leakage crack intersegmental part
Stifled, the setting of fixing layer can play certain position-limiting action to cock body, avoid combustion gas that cock body is released leakage crack section, be in piece
Shape is laid in the capsule on the inside of roof and is conducive to being formed by curing for fixing layer structure.
The present invention is further arranged to: the housing sidewall is glued with elastic sealing layer with respect to one side surface of gas pipeline.
By using above-mentioned technical proposal, being provided with for elastic sealing layer is conducive to improve between side wall and gas pipeline side
Leakproofness, and then ensure that sealed chamber can be formed smoothly.
The present invention is further arranged to: the roof is set in distance with gas pipeline, and side wall is abutted against with gas pipeline,
Two connecting pins have been extended to form towards away from roof direction positioned at the two sidewalls of gas pipeline radial direction, have been worn between two connecting pins
There is fastener and realizes the abutting of side wall and gas pipeline surface by it.
By using above-mentioned technical proposal, sealed chamber is formd using roof, side wall and gas pipeline itself, is passed through
Fastener wears locking two sidewalls, and combines with elastic sealing layer, it is advantageously ensured that when high-pressure pump is ventilated, sealed chamber
Structural stability.
In conclusion the invention has the following advantages:
First, the technique can be realized non-stop plugging, avoiding combustion gas from closing influences life, advantageously reduce maintenance cost with
And loss caused by gas leakage；
Second, the technique has carried out effective closure to fuel gas pipeline leakage crack intersegmental part and outside, realize dual
The case where blocking, there is preferable plugging effect, can effectively slow down secondary leakage generation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment one；
Fig. 2 is the partial structural diagram of embodiment one, is mainly used for embodying connecting pin；
Fig. 3 is the partial structural diagram of embodiment one, is mainly used for embodying shell structure；
Fig. 4 be embodiment one partial sectional view, be mainly used for embody patch do not enter to leakage crack section when state；
Fig. 5 is the partial sectional view of embodiment one, is mainly used for embodying cock body, patch and fixing layer；
Fig. 6 is the structural schematic diagram of one capsule of embodiment；
Fig. 7 is the partial structural diagram of embodiment two, is mainly used for embodying shell and injection port.
Appended drawing reference: 1, crack section is leaked；2, patch；21, deformation section；3, shell；31, side wall；32, roof；321a, note
Entrance；321b, injection orifice；33, telescopic；4, capsule；41, through-hole；5, hose；6, high-pressure pump；7, connecting pin；8, it fastens
Part；9, cock body；10, fixing layer；11, elastic sealing layer.
Specific embodiment
The embodiment of the present invention is described further referring to Figure 1 to Figure 7.
Embodiment one:
As shown in Figure 1, a kind of non-stop plugging technique of gas pipeline crack formula leakage, non-stop plugging technique specific steps
Are as follows:
Step A, as shown in connection with fig. 4, the ambient substance excavation that the gas pipeline of leakage crack section 1 occurs is opened, exposing is let out
The gas pipeline of leakage crack section 1 is simultaneously clean by its removing surface.
Step B, production one can cover the patch 2 of leakage crack section 1, and patch 2 is fitted in leakage by viscose glue and is split
1 top of section is stitched, patch 2 is in specifically long strip type laminated structure, in order to preferably realize the deformation in 2 later period of patch, it is contemplated that material
Intensity and cost, first patch 2 are made of elastomeric, and secondly above-mentioned patch 2 includes long along leakage crack section 1
The deformation section 21 in direction is spent, deformation section 21 is located at right above leakage crack section 1, and 21 cross section of deformation section is in " Ω " shape.
Step C, by tap leakage crack section 1 surface so that leakage crack section 1 crack diameter obtain it is a degree of
Expansion, the leakage crack section 1 after expansion are still located in 2 overlay area of patch.
Step D, as shown in connection with fig. 3, a shell 3, shape between shell 3 and gas pipeline are set in fuel gas pipeline leakage section
At there is sealed chamber, leakage crack section 1 is located in sealed chamber, and shell 3 includes side wall 31 and roof 32, roof 32 and combustion gas
Pipeline is set in distance, and side wall 31 is abutted against with gas pipeline, roof 32 be in rectangular plate-like structure, side wall 31 be provided with four pieces and
Extend from 32 edge of roof towards gas pipeline direction, roof 32, side wall 31 and gas pipeline itself form sealed chamber, be
The sealing performance for improving sealed chamber, is glued with elastic sealing layer, elastic sealing layer between side wall 31 and gas pipeline
Specially rubber layer；
In order to improve the structural stability of sealed chamber, avoid being caused sealed chamber to let out by external or internal pressure
Leakage is additionally provided with fixed structure between 3 outside of shell and gas pipeline, and as shown in connection with fig. 2, figure fixed structure specifically includes position
In the two sidewalls 31 of gas pipeline radial direction towards two connecting pins 7 extended to form away from 32 direction of roof, the plate-like knot in connecting pin 7
Structure, two linkage sections and roof 32 are located at the two sides of gas pipeline, and it is real that fastener 8 is equipped between two connecting pins 7
It now locks, is finally reached the abutting of two sidewalls 31 Yu gas pipeline surface.
Step E, inlet 321a is provided on shell 3, the inlet 321a is communicated with high-pressure pump by hose 5
6, high-pressure pump 6 is towards sealed chamber internal ventilation, so that the pressure inside sealed chamber is greater than the pressure in gas pipeline, in conjunction with
Shown in Fig. 5, so that 2 elastic deformation of patch, 2 partial region of patch, which is embedded, to be entered to inside leakage crack section 1, in high pressure gas
21 cross section of deformation section is in " Ω " structure before 6 injection of pump, and after high-pressure pump 6 injects, 21 cross section of deformation section is in be inverted
" Ω " structure, be embedded into leakage crack section 1 inside 21 one side of deformation section play the role of partition, can effectively avoid glue
Water is directly injected into the situation for causing to leak out to inside crack section 1 inside gas pipeline is leaked, and on the other hand constitutes a cavity,
For placing glue and being smoothly formed by curing cock body 9.
Step F, sealed chamber internal pressure is kept, and carries out glue filling inside leakage crack section 1, leakage crack section
The filling of 1 inside glue realized by the capsule 4 full of glue, and capsule 4 is fixed on the inside of roof 32, capsule 4 in the form of sheets structure and
It is laid in 32 inside of roof, is fixed between capsule 4 and roof 32 by glue.
In order to enable capsule 4 smoothly to rupture, connected between roof 32 and side wall 31 by telescopic 33, by means of stretching
The extendable room of contracting set 33 enables roof 32 to be displaced along side wall 31 towards leakage crack 1 direction of section.When roof 32 is displaced one
After section distance, the capsule 4 positioned at 32 inside of roof abuts gas pipeline side, so that capsule 4 occurs to squeeze rupture, capsule 4
It ruptures rear portion glue to flow into inside leakage crack section 1, and is formed by curing the cock body 9 for being embedded cooperation with leakage crack section 1；
Another part glue remains between top plate and gas pipeline side wall 31, has been formed by curing and has been integrally formed with cock body 9
And it is tightly attached to the fixing layer 10 of gas pipeline side.
Step G, stop high-pressure pump 6 to operate, and close inlet 321a；
Step H, it after carrying out necessary leak detection and preservative treatment, is backfilled, the gas pipeline for leaking crack section 1 is buried
In underground.
As shown in fig. 6, avoiding sending out with capsule 4 to enable high-pressure pump 6 that smoothly gas to be passed through inside shell 3
Raw interference, the middle position of 4 structure of capsule are additionally provided with a through-hole 41 for gas circulation.
Embodiment two:
A kind of non-stop plugging technique of gas pipeline crack formula leakage is in step F with the difference place of embodiment one
The mode of glue is filled, as shown in Figure 5, Figure 7, the section 1 inside glue filling of leakage crack is realized especially by high-pressure injection rifle,
The injection orifice 321b for wearing high-pressure injection rifle dispensing end is offered on shell 3, high-pressure injection rifle dispensing end wears shell 3 simultaneously
It extends in leakage crack section 1, is injected into leakage section crack section 1 by injection pressure good general's glue of high-pressure injection rifle to solidify
Form the cock body 9 that cooperation is embedded with leakage crack section 1.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of non-stop plugging technique of gas pipeline crack formula leakage, which is characterized in that non-stop plugging technique specific steps are as follows:
Step A, the ambient substance excavation that the gas pipeline of leakage crack section (1) occurs is opened, exposes the combustion of leakage crack section (1)
Feed channel is simultaneously clean by its removing surface；
Step B, production one can cover the patch (2) of leakage crack section (1), and patch (2) is fitted in leakage by viscose glue
Above crack section (1)；
Step C, by tap leakage crack section (1) surface so that leakage crack section (1) crack diameter obtain it is a degree of
Expansion, the leakage crack section (1) after expansion are still located in patch (2) overlay area；
Step D, it is arranged in fuel gas pipeline leakage section a shell (3), is formed with seal chamber between shell (3) and gas pipeline
Room, leakage crack section (1) are located in sealed chamber；
Step E, it is provided on shell (3) inlet (321a), the inlet (321a) is communicated with high-pressure pump (6), high
Compression pump (6) is towards sealed chamber internal ventilation, and above-mentioned patch (2) is made of elastic material, so that the pressure inside sealed chamber
It is powerful in the pressure in gas pipeline so that patch (2) elastic deformation, patch (2) partial region, which is embedded, enters to leakage
Crack section (1) is internal；
Step F, sealed chamber internal pressure is kept, and carries out glue filling, filled glue inside leakage crack section (1)
It is formed by curing the cock body (9) that cooperation is embedded with leakage crack section (1)；The internal glue filling of leakage crack section (1) passes through high pressure injection
Rifle realization is penetrated, high-pressure injection rifle dispensing end wears shell (3) and extends in leakage crack section (1), opens up on the shell (3)
There is the injection orifice (321b) for wearing high-pressure injection rifle dispensing end, or the internal glue filling of leakage crack section (1) passes through capsule
(4) it realizes, is fixed with inside sealed chamber capsule (4), glue is filled with inside capsule (4), made by squeezing capsule (4)
Capsule (4) rupture, so that glue flows into leakage crack section (1) inside；
Step G, stop high-pressure pump (6) operating, and close inlet (321a)；
Step H, it after carrying out necessary leak detection and preservative treatment, is backfilled, the gas pipeline for leaking crack section (1) is embedded in
Underground.
2. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 1, which is characterized in that step
The patch (2) in B is in long strip type laminated structure, and the patch (2) includes the shape along leakage crack section (1) length direction
Become section (21), deformation section (21) is located at right above leakage crack section (1), and deformation section (21) cross section is in " Ω " shape.
3. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 2, which is characterized in that described
Patch (2) is made of elastomeric.
4. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 3, which is characterized in that described
Shell (3) includes side wall (31) and roof (32), and the capsule (4) is fixed on the inside of roof (32), the roof (32) with
Side wall (31) is slidably matched to realize that roof (32) is displaced towards leakage crack section (1) direction, between roof (32) and side wall (31)
It is connected by telescopic (33).
5. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 4, which is characterized in that described
Capsule (4) structure and is laid on the inside of roof (32) in the form of sheets, and the glue curing after capsule (4) rupture is formed with and leaks
Crack section (1) is embedded the cock body (9) of cooperation, the fixing layer (10) for being integrally formed with cock body (9) and being tightly attached to gas pipeline side.
6. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 5, which is characterized in that described
Shell (3) side wall (31) is glued with elastic sealing layer (11) with respect to one side surface of gas pipeline.
7. a kind of non-stop plugging technique of formula leakage in gas pipeline crack according to claim 6, which is characterized in that described
Roof (32) is set in distance with gas pipeline, and side wall (31) is abutted against with gas pipeline, positioned at the two sides of gas pipeline radial direction
Wall (31) has extended to form two connecting pins (7) towards away from roof (32) direction, is equipped with fastener between two connecting pins (7)
(8) and by it the abutting of side wall (31) and gas pipeline surface is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613497.8A CN107504317B (en) | 2017-07-25 | 2017-07-25 | A kind of non-stop plugging technique of gas pipeline crack formula leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613497.8A CN107504317B (en) | 2017-07-25 | 2017-07-25 | A kind of non-stop plugging technique of gas pipeline crack formula leakage |
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| CN107504317A CN107504317A (en) | 2017-12-22 |
| CN107504317B true CN107504317B (en) | 2019-06-04 |
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Families Citing this family (3)
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| CN112682598B (en) * | 2020-12-24 | 2022-07-19 | 山西聚力民生天然气储备有限公司 | Coal-made clean gas conveying pipeline structure capable of preventing leakage at joint |
| CN112682615A (en) * | 2021-01-07 | 2021-04-20 | 中国人民解放军陆军工程大学 | Emergency plugging device |
| CN115224627B (en) * | 2022-07-12 | 2024-09-17 | 华能海南昌江核电有限公司 | Emergency plugging and pressure maintaining emergency device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6901967B1 (en) * | 2004-05-07 | 2005-06-07 | Rodney C. Kuenzer | Natural gas pipe repair fitting and method |
| CN101245885A (en) * | 2007-02-13 | 2008-08-20 | 北京安科管道工程科技有限公司 | Mend filling and renovation reinforced method for bearing equipment wall surface |
| CN104033698A (en) * | 2014-06-17 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Method for pressure welding and leaking stoppage of pressure pipeline |
| CN104832745B (en) * | 2015-05-27 | 2017-03-01 | 唐山三友化工股份有限公司 | Arc board-like heavy caliber PE is pipe pressurized to repair structure and its restorative procedure |
| CN106764235A (en) * | 2016-12-27 | 2017-05-31 | 史庭磊 | The quick online leak-proof device of flexible duct and application method |
| CN106969232A (en) * | 2017-05-15 | 2017-07-21 | 阜阳国祯燃气有限公司 | A kind of new leak stoppers with pressure |
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