CN107504317A - 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
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- CN107504317A CN107504317A CN201710613497.8A CN201710613497A CN107504317A CN 107504317 A CN107504317 A CN 107504317A CN 201710613497 A CN201710613497 A CN 201710613497A CN 107504317 A CN107504317 A CN 107504317A
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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
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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
- F16L55/175—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 technique 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 be impacted by leaking crack intersegmental part to the patch on its surface the situation that patch loosening causes secondary gas leakage occurs；Make to produce certain pressure difference between sealed chamber and gas pipeline, enable and deformed upon with certain elastic patch, and it is embedded patch subregion 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 a part of cut-off, 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 cavity volume is played a part of, for placing glue and being smoothly formed by curing cock body.
Description
Technical field
The present invention relates to gas pipeline maintenance technique field, is leaked more specifically to a kind of gas pipeline crack formula
Non-stop plugging technique.
Background technology
Gas pipeline is all generally that to be embedded in underground be buried-pipe laying, not allowed mostly for safe operation
Aerial laying.Though buried-pipe laying can play a protective role to pipeline, agricultural tillage and ground mankind's activity are not influenceed, due to
Natural cause (such as pipeline spontaneous corrosion, chemical attack) or artificial origin (such as drill, dug a well, driving piles, pushing to machine digging
It is first-class) the either large or small crack of the gas pipeline generation of buried-pipe laying is often resulted in, cause gas leakage.Gas has
The characteristics of inflammable, explosive and poisonous, just must be within the time as short as possible once fuel gas leaks in gas pipeline
Leak stopping processing is carried out, prevents combustion gas from largely leaking, to ensure the normal production and living of city dweller and personal safety.
Common blocking method is to be initially switched off source of the gas, and the gas in gas pipeline is drained, and then carries out welding at mending-leakage
Reason.The drawbacks of this method, is：Long time, the combustion gas resource of waste preciousness are expended, environment is polluted and has a strong impact on people just
Often life.
Publication No. CN101862883BD patent document 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：It will leak out a little or the combustion gas of section stitched in leakage
Pipeline cleaning is clean；Semi arch fixture is made, patch piece is pasted on fixture, fixture is installed on away from leak 1-2 rice
Gas pipeline on, fixture is axially promoted along pipeline, until at pipe leakage；It is symmetrically to balanced gradual clamping screw,
In the end spot welding semi-circular catch of fixture, semi-circular catch and leak gas pipeline are interrupted welding, last shape in two steps
Integral closing welding bead, after carrying out leak detection and preservative treatment, complete backfill.
Above-mentioned technical proposal carries out the sealing at fuel gas pipeline leakage by way of pasting patch, but patch is pin
Block for the surface of leak, and leak inside do not blocked effectively, due to inside gas pipeline all the time
Circulation has combustion gas, and combustion gas can be by being impacted, with the extension of usage time, patch inside leak to the patch on its surface
Loosen, easily cause the situation of gas secondary leakage, prior art has improvements.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of band of gas pipeline crack formula leakage
Press seal deblocking technology, the non-stop plugging technique are effectively blocked to fuel gas pipeline leakage crack intersegmental part, have preferably closure
Effect, the situation of gas secondary leakage can be slowed down.
To achieve the above object, the invention provides following technical scheme：A kind of gas pipeline crack formula leaks with pressure
Plugging technology, non-stop plugging technique concretely comprise the following steps：
Step A, the ambient substance for the gas pipeline for occurring to leak crack section is excavated and opened, expose the gas pipeline of leakage crack section
It is and its removing surface is clean；
Step B, the patch of leakage crack section can be covered by making one, and patch is fitted in leakage crack section by viscose glue
Side；
Step C, crack section surface is leaked by tapping so that the crack diameter of leakage crack section obtains a certain degree of expansion,
Leakage crack section after expansion is still in patch overlay area；
Step D, one housing is set in fuel gas pipeline leakage section, formed with sealed chamber, leakage between housing and gas pipeline
Crack section is located in sealed chamber；
Step E, it is provided with inlet on housing, the inlet is communicated with high-pressure pump, and high-pressure pump is towards in sealed chamber
Portion is ventilated, and above-mentioned patch is made of elastic material so that the pressure inside sealed chamber is more than the pressure in gas pipeline, enters
And causing patch elastic deformation, patch subregion, which is embedded, enters to leakage crack intersegmental part；
Step F, sealed chamber internal pressure is kept, and glue filling is carried out in leakage crack intersegmental part, the glue after filling is consolidated
Change the cock body for being formed and cooperation being embedded with leakage crack section；
Step G, stop high-pressure pump operating, and close inlet；
Step H, after carrying out necessary leak detection and preservative treatment, backfilled, the gas pipeline that will leak out crack section is embedded in ground
Under.
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 is completed to leak the closure of 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 patch occurs and loosens the situation of secondary gas leakage of causing；Make first
Certain pressure difference is produced between sealed chamber and gas pipeline so that the patch with certain elasticity can deform upon, and
It is embedded patch subregion and enters to leakage crack intersegmental part, passes through fracture propagation before patch deformation so that patch energy
Enough it is relatively easy to deformation to extend to inside crack, on the one hand the patch being embedded into leakage crack intersegmental part plays the work of cut-off
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 a part of cavity volume, 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, for deformation section directly over leakage crack section, the 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
Afterwards, deformation section cross section is in inverted " Ω " structure.
The present invention is further arranged to：The patch is made up of elastomeric.
By using above-mentioned technical proposal, patch made of elastomeric with it is preferable elastic while can also
Preferable structural strength is kept, is advantageous to increase the service life.
The present invention is further arranged to：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 housing and extended in leakage crack section, is offered on the housing 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, profit
The injection of glue is realized with high-pressure injection rifle, injection mode is relatively simple, is easy to practical operation.
The present invention is further arranged to：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, by extruding capsule capsules break, and then causes 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
Cross extruding capsule and cause capsules break, and then cause glue to flow into leakage crack intersegmental part, capsule structure is simple, is easily installed reality
Apply.
The present invention is further arranged to：The housing includes side wall and roof, and the capsule is fixed on the inside of roof, institute
Roof is stated with snug engagement to realize that roof towards leakage crack section direction displacement, is connected between roof and side wall by telescopic
Connect.
By using above-mentioned technical proposal, after the deformation section on patch is extended into leakage crack intersegmental part, top
Wall and capsule are towards leakage crack section direction displacement, and after roof one segment distance of displacement, the capsule on the inside of roof supports
Connect gas pipeline side so that capsule ruptures, and the glue curing after capsules break is formed with being embedded and match somebody with somebody with leakage crack section
The cock body of conjunction, sealed chamber can also ensure that while flexible displacement by telescopic roof between roof and side wall
Sealing.
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 formed with being embedded the cock body of cooperation with leakage crack section, be integrally formed with cock body and be close to gas pipeline side
Fixed bed.
By using above-mentioned technical proposal, cock body structure preferably can be sealed effectively to leakage crack intersegmental part
Stifled, the setting of fixed bed can play certain position-limiting action to cock body, avoid combustion gas that cock body is released into leakage crack section, in piece
The capsule that shape is laid on the inside of roof is advantageous to fix being formed by curing for Rotating fields.
The present invention is further arranged to：The housing sidewall is glued with elastic sealing layer with respect to the side surface of gas pipeline one.
By using above-mentioned technical proposal, elastic sealing layer is provided with beneficial between raising side wall and gas pipeline side
Sealing, 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 abuts against with gas pipeline,
Formed with two connection ends, worn positioned at the two side of gas pipeline radial direction towards away from the extension of roof direction between two connection ends
There is fastener and the abutting of side wall and gas pipeline surface is realized by it.
By using above-mentioned technical proposal, sealed chamber is formd in itself using roof, side wall and gas pipeline, is passed through
Fastener wears locking two side, and is combined with elastic sealing layer, it is advantageously ensured that when high-pressure pump is ventilated, sealed chamber
Structural stability.
In summary, the invention has the advantages that：
One：The technique can realize non-stop plugging, and avoiding combustion gas from closing influences life, advantageously reduces maintenance cost and combustion
Loss caused by gas leakage；
Secondly：The technique has carried out effective closure to fuel gas pipeline leakage crack intersegmental part and outside, realizes dual-plugging,
With preferable plugging effect, the situation that can effectively slow down secondary leakage occurs.
Brief description of the drawings
Fig. 1 is the overall structure diagram of embodiment one；
Fig. 2 is the partial structural diagram of embodiment one, is mainly used in embodying connection end；
Fig. 3 is the partial structural diagram of embodiment one, is mainly used in embodying shell structure；
Fig. 4 is the partial sectional view of embodiment one, is mainly used in embodiment patch and is introduced into state during leakage crack section；
Fig. 5 is the partial sectional view of embodiment one, is mainly used in embodying cock body, patch and fixed bed；
Fig. 6 is the structural representation of the capsule of embodiment one；
Fig. 7 is the partial structural diagram of embodiment two, is mainly used in embodying housing and injection port.
Reference：1st, crack section is leaked；2nd, patch；21st, deformation section；3rd, housing；31st, side wall；32nd, roof；321a, note
Entrance；321b, injection orifice；33rd, telescopic；4th, capsule；41st, through hole；5th, flexible pipe；6th, high-pressure pump；7th, connection end；8th, fasten
Part；9th, cock body；10th, fixed bed；11st, elastic sealing layer.
Embodiment
The embodiment of the present invention is described further referring to figs. 1 to Fig. 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 concretely comprise the following steps：
Step A, with reference to shown in Fig. 4, the ambient substance for the gas pipeline for occurring to leak crack section 1 is excavated and opened, exposes leakage and splits
The gas pipeline of seam section 1 is simultaneously clean by its removing surface.
Step B, the patch 2 of leakage crack section 1 can be covered by making one, and patch 2 is fitted in into leakage by viscose glue and split
The top of section 1 is stitched, patch 2 is in specifically long strip type laminated structure, in order to preferably realize the deformation in the later stage of patch 2, it is contemplated that material
Intensity and cost, first patch 2 are made up of elastomeric, and secondly above-mentioned patch 2 includes grows along leakage crack section 1
The deformation section 21 in direction is spent, for deformation section 21 directly over leakage crack section 1, the cross section of deformation section 21 is in " Ω " shape.
Step C, by tapping leakage crack section 1 surface so that the crack diameter of leakage crack section 1 obtains a certain degree of
Expansion, the leakage crack section 1 after expansion is still in the overlay area of patch 2.
Step D, with reference to shown in Fig. 3, a housing 3, shape between housing 3 and gas pipeline are set in fuel gas pipeline leakage section
Into there is sealed chamber, leakage crack section 1 is located in sealed chamber, and housing 3 includes side wall 31 and roof 32, roof 32 and combustion gas
Pipeline is set in distance, and side wall 31 abuts against with gas pipeline, 32 rectangular platy structure of roof, side wall 31 be provided with four pieces and
Extend from the edge of roof 32 towards gas pipeline direction, roof 32, side wall 31 and gas pipeline form sealed chamber, be in itself
The sealing property of sealed chamber is improved, 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 leak by outside or internal pressure,
Fixed structure is additionally provided between the outside of housing 3 and gas pipeline, with reference to shown in Fig. 2, figure fixed structure is specifically included positioned at combustion
The two side 31 of feed channel radial direction is towards extending two connection ends 7 to be formed away from the direction of roof 32,7 plate-like structure of connection end, and two
Linkage section is located at the both sides of gas pipeline with roof 32 respectively, and fastener 8 is equipped between two connection ends 7 and realizes lock
Tightly, it is finally reached the abutting of two side 31 and gas pipeline surface.
Step E, inlet 321a, the inlet 321a are provided with housing 3 high-pressure pump is communicated with by flexible pipe 5
6, high-pressure pump 6 is towards sealed chamber internal ventilation so that and the pressure inside sealed chamber is more than the pressure in gas pipeline, with reference to
Shown in Fig. 5, and then cause the elastic deformation of patch 2, the subregion of patch 2, which is embedded, to be entered to inside leakage crack section 1, in high pressure gas
The cross section of deformation section 21 is in " Ω " structure before pump 6 injects, and after high-pressure pump 6 injects, the cross section of deformation section 21 is in inversion
" Ω " structure, be embedded and play a part of cut-off into the one side of deformation section 21 inside leakage crack section 1, can effectively avoid glue
Water is directly injected into causing to leak out to situation inside gas pipeline inside leakage crack section 1, on the other hand constitutes a cavity volume,
For placing glue and being smoothly formed by curing cock body 9.
Step F, sealed chamber internal pressure is kept, and glue filling is carried out inside leakage crack section 1, leaks crack section
1 inside glue filling realized by the capsule 4 full of glue, and capsule 4 is fixed on the inner side of roof 32, capsule 4 in the form of sheets structure and
The inner side of roof 32 is laid in, is fixed between capsule 4 and roof 32 by glue.
In order that capsule 4 can smoothly rupture, connected between roof 32 and side wall 31 by telescopic 33, by means of stretching
Contracting set 33 extendable room so that roof 32 can along side wall 31 towards leakage the direction displacement of crack section 1.When the displacement one of roof 32
After segment distance, the capsule 4 positioned at the inner side of roof 32 abuts gas pipeline side so that extruding rupture, capsule 4 occur for capsule 4
Rupture rear portion glue to flow into inside leakage crack section 1, and be formed by curing the cock body 9 that cooperation is embedded with leakage crack section 1；
Another part glue is remained between top plate and gas pipeline side wall 31, has been formed by curing and has been integrally formed with cock body 9 and tightly
It is affixed on the fixed bed 10 of gas pipeline side.
Step G, stop high-pressure pump 6 to operate, and close inlet 321a；
Step H, after carrying out necessary leak detection and preservative treatment, backfilled, the gas pipeline that will leak out crack section 1 is embedded in ground
Under.
As shown in fig. 6, in order that gas smoothly can be passed through inside housing 3 by high-pressure pump 6, avoid sending out with capsule 4
Raw interference, the centre position of the structure of capsule 4 are additionally provided with a through hole 41 for being used for gas circulation.
Embodiment two：
The non-stop plugging technique of a kind of gas pipeline crack formula leakage, with being filled in place of the difference of embodiment one in step F
The mode of glue, as shown in Figure 5, Figure 7, the inside glue filling of leakage crack section 1 are realized especially by high-pressure injection rifle, in housing
The injection orifice 321b for wearing high-pressure injection rifle dispensing end is offered on 3, high-pressure injection rifle dispensing end wears housing 3 and extended
To leakage crack section 1, it is injected into by injection pressure good general's glue of high-pressure injection rifle in leakage section crack section 1 to be formed by curing
The cock body 9 of cooperation is embedded with leakage crack section 1.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some 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 (9)
1. the non-stop plugging technique of a kind of gas pipeline crack formula leakage, it is characterised in that non-stop plugging technique concretely comprises the following steps：
Step A, will occur to leak crack section（1）Gas pipeline ambient substance excavate open, expose leakage crack section（1）Combustion
Feed channel is simultaneously clean by its removing surface；
Step B, leakage crack section can be covered by making one（1）Patch（2）, and by patch（2）Leakage is fitted in by viscose glue
Crack section（1）Top；
Step C, crack section is leaked by tapping（1）Surface so that leakage crack section（1）Crack diameter obtain it is a certain degree of
Expansion, the leakage crack section after expansion（1）Still it is located at patch（2）In overlay area；
Step D, one housing is set in fuel gas pipeline leakage section（3）, housing（3）Formed with annular seal space between gas pipeline
Room, leak crack section（1）In sealed chamber；
Step E, in housing（3）On be provided with inlet（321a）, the inlet（321a）It is communicated with high-pressure pump（6）, it is high
Compression pump（6）Towards sealed chamber internal ventilation, above-mentioned patch（2）It is made of elastic material so that the pressure inside sealed chamber
It is powerful in the pressure in gas pipeline, and then cause patch（2）Elastic deformation, patch（2）Subregion, which is embedded, enters to leakage
Crack section（1）It is internal；
Step F, sealed chamber internal pressure is kept, and in leakage crack section（1）Inside carries out glue filling, the glue after filling
It is formed by curing and leakage crack section（1）It is embedded the cock body of cooperation（9）；
Step G, high-pressure pump is stopped（6）Operating, and close inlet（321a）；
Step H, after carrying out necessary leak detection and preservative treatment, backfilled, will leak out crack section（1）Gas pipeline be embedded in
Underground.
A kind of 2. non-stop plugging technique of formula leakage in gas pipeline crack according to claim 1, it is characterised in that step
The patch in B（2）In long strip type laminated structure, the patch（2）Include along leakage crack section（1）The shape of length direction
Become section（21）, deformation section（21）Positioned at leakage crack section（1）Surface, the deformation section（21）Cross section is in " Ω " shape.
3. the non-stop plugging technique of formula leakage in a kind of gas pipeline crack according to claim 2, it is characterised in that described
Patch（2）It is made up of elastomeric.
A kind of 4. non-stop plugging technique of formula leakage in gas pipeline crack according to claim 3, it is characterised in that step
Leakage crack section in F（1）Internal glue filling realizes that high-pressure injection rifle dispensing end wears housing by high-pressure injection rifle（3）
And extend to leakage crack section（1）It is interior, the housing（3）On offer injection orifice for wearing high-pressure injection rifle dispensing end
（321b）.
A kind of 5. non-stop plugging technique of formula leakage in gas pipeline crack according to claim 3, it is characterised in that step
Leakage crack section in F（1）Internal glue filling passes through capsule（4）Realize, capsule is fixed with inside sealed chamber（4）, glue
Capsule（4）Inside is filled with glue, by extruding capsule（4）So that capsule（4）Rupture, and then cause glue to flow into leakage crack section
（1）It is internal.
6. the non-stop plugging technique of formula leakage in a kind of gas pipeline crack according to claim 5, it is characterised in that described
Housing（3）Including side wall（31）And roof（32）, the capsule（4）It is fixed on roof（32）Inner side, the roof（32）With
Side wall（31）It is slidably matched to realize roof（32）Towards leakage crack section（1）Direction displacement, roof（32）And side wall（31）Between
Pass through telescopic（33）Connection.
7. the non-stop plugging technique of formula leakage in a kind of gas pipeline crack according to claim 6, it is characterised in that described
Capsule（4）Structure and it is laid in roof in the form of sheets（32）Inner side, the capsule（4）Glue curing after rupture formed with leakage
Crack section（1）It is embedded the cock body of cooperation（9）With cock body（9）It is integrally formed and is close to the fixed bed of gas pipeline side（10）.
8. the non-stop plugging technique of formula leakage in a kind of gas pipeline crack according to claim 7, it is characterised in that described
Housing（3）Side wall（31）Elastic sealing layer is glued with respect to the side surface of gas pipeline one（11）.
9. the non-stop plugging technique of formula leakage in a kind of gas pipeline crack according to claim 8, it is characterised in that described
Roof（32）It is set in distance with gas pipeline, side wall（31）Abutted against with gas pipeline, positioned at the both sides of gas pipeline radial direction
Wall（31）Court deviates from roof（32）Direction extends formed with two connection ends（7）, two connection ends（7）Between be equipped with fastener
（8）And side wall is realized by it（31）With the abutting on gas pipeline surface.
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| 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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| 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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| CN107504317B CN107504317B (en) | 2019-06-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682615A (en) * | 2021-01-07 | 2021-04-20 | 中国人民解放军陆军工程大学 | Emergency plugging device |
| CN112682598A (en) * | 2020-12-24 | 2021-04-20 | 龚盈 | Coal clean fuel gas conveying pipeline structure capable of preventing interface leakage |
| CN115224627A (en) * | 2022-07-12 | 2022-10-21 | 华能海南昌江核电有限公司 | Emergency plugging pressure maintaining emergency device |
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| 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 |
| CN104832745A (en) * | 2015-05-27 | 2015-08-12 | 唐山三友化工股份有限公司 | Structure for repairing arc plate type large caliber PE pipeline under pressure and repair method of structure |
| 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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| CN112682598A (en) * | 2020-12-24 | 2021-04-20 | 龚盈 | Coal clean fuel gas conveying pipeline structure capable of preventing interface leakage |
| 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 |
| CN115224627A (en) * | 2022-07-12 | 2022-10-21 | 华能海南昌江核电有限公司 | Emergency plugging pressure maintaining emergency device |
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