CN105351677B - Gas piping system band gas method for repairing and mending - Google Patents
Gas piping system band gas method for repairing and mending Download PDFInfo
- Publication number
- CN105351677B CN105351677B CN201510701366.6A CN201510701366A CN105351677B CN 105351677 B CN105351677 B CN 105351677B CN 201510701366 A CN201510701366 A CN 201510701366A CN 105351677 B CN105351677 B CN 105351677B
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- China
- Prior art keywords
- gas piping
- gas
- cylinder
- repairing
- cylinder piece
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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
- F16L55/172—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 the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
-
- 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 present invention provides a kind of gas piping system band gas method for repairing and mending, and it includes：1) two are prepared in advance and embraces cylinder piece, embrace cylinder pieces for this two and forms the thin tubular structure in the thick two in centre for surrounding the gas piping when being relatively fastened on gas piping, the inside middle of the tubular structure is communicated by the feed pipe being located on armful cylinder piece with the external world；2) air leakage point is determined, and two armfuls of cylinder pieces are relatively fastened on the gas piping near air leakage point so that air leakage point is in two inside middles for embracing the tubular structure that cylinder pieces are formed；3) grouting material is filled by the inside of feed pipe to the tubular structure, and grouting material solidification is reached predetermined strength；4) to embracing the gap between cylinder piece, to embracing the gap between cylinder piece and gas piping and carrying out welded seal to the mouth of pipe of feed pipe.When repairing the air leakage point of gas piping system using this method, without stopping the supple of gas or steam, and repairing efficiency height, high safety, cost are low, quality is good.
Description
Technical field
The invention belongs to industrial pipeline repairing field, specifically, it is related to a kind of gas piping system band gas method for repairing and mending.
Background technology
Industrially, gas piping and the benefit being connected between gas piping are included for transmitting the gas piping system of coal gas
Repay device.Compensator is used to compensate the dilatation that pipeline is produced by thermal stress, and the most frequently used compensator is based on bellows
Want the compensator of element.After long-play, air leakage point occurs in gas piping system, can particularly go out in compensator part
Existing air leakage point, causes gas leak, and great hidden danger is brought for safety in production.Generally, in order to remove a hidden danger, it is necessary to stop
Gas, then the air leakage point to gas piping system repaired or changed.But production so, can be influenceed, so as to cause very
Big economic loss.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of gas piping system band gas method for repairing and mending, using the party
When method repairs the air leakage point of gas piping system, without stopping the supple of gas or steam, and repairing efficiency height, high safety, cost are low, quality
It is good.
To achieve these goals, the present invention provides a kind of gas piping system band gas method for repairing and mending, and this method is included such as
Lower step：
1) two armful cylinder pieces that can be relatively fastened on gas piping are prepared in advance, wherein, this two are embraced cylinder pieces in phase
The thin tubular structure in thick two in centre of formation encirclement gas piping when on gas piping, and the tubulose knot are fastened on over the ground
Two of structure is fitted snugly on the gas piping, and the inside middle of the tubular structure is by being located at least one described armful of cylinder piece
On feed pipe communicated with the external world；
2) air leakage point is determined in gas piping system, and it is attached that described two armfuls of cylinder pieces are relatively fastened on into the air leakage point
On near gas piping so that the air leakage point is in the inside middle for the tubular structure that described two armfuls of cylinder pieces are formed；
3) inside of the tubular structure formed by the feed pipe on described armful of cylinder piece to described armful of cylinder piece fills grouting
Material, and grouting material solidification is reached predetermined strength；
4) to the gap between described armful of cylinder piece, to the gap between described armful of cylinder piece and the gas piping and right
The mouth of pipe of the feed pipe carries out welded seal.
Preferably, on the buckling surface of described two armfuls of cylinder pieces can be provided with flange, by the screw on the flange and with
The bolt that the screw coordinates, can be such that described two armfuls of cylinder pieces are relatively fastened on gas piping.
Preferably, the feed pipe on described armful of cylinder piece is also provided with valve or block.
Preferably, can be with when described two armfuls of cylinder pieces are relatively fastened on the gas piping near the air leakage point
Rubber blanket is used between the buckling surface of described armful of cylinder piece and between described armful of cylinder piece and the contact surface of the gas piping
Or polytetrafluoroethylene (PTFE) strip is sealed.
Preferably, when carrying out welded seal to the gap between described armful of cylinder piece, non-bolt position can be first welded, then
Bolt is cut off, and the position after bolt is cut off in welding.
From above description and practice, the air leakage point of gas piping system is repaiied using the method for the present invention
Added time, a closing space is set up near air leakage point first with a pair armfuls of cylinder pieces, then, grouting is injected into the closing space
Material, and grouting material is solidified, sample is just temporarily stopped to the leakage of coal gas, then, sealing weldering has been carried out in the case where not stopping the supple of gas or steam
Connect, so as to ensure repairing quality for a long time, and ensure because grouting material generation crack to cause secondary after repairing
Gas leak.Whole mending course is band gas mending course, without stopping the supple of gas or steam, and repairing efficiency height, high safety, cost
Low, quality is good.
Brief description of the drawings
Fig. 1 is transverse side view, shows that the cylinder piece of being embraced by two described in one embodiment of the present of invention is fastened and formed
The thin tubular structure in the thick two in centre；
Fig. 2 is longitudinal side view, from another angle show Fig. 1 in tubular structure；
Fig. 3 is sectional view, shows the vertical section of the tubular structure in Fig. 1；
Fig. 4 is transverse side view, shows relatively fastening two armfuls of cylinder pieces described in one embodiment of the present of invention
State on the gas piping near air leakage point；
Fig. 5 is sectional view, shows that embracing cylinder piece for two in Fig. 4 is relatively fastened on the gas piping near air leakage point
State；
Fig. 6 is sectional view, shows and the tubulose knot that cylinder piece is formed is embraced at two described in one embodiment of the present of invention
The state of injection grouting material in structure.
Embodiment
The embodiment of gas piping system band gas method for repairing and mending of the present invention described below with reference to the accompanying drawings.Ability
The those of ordinary skill in domain will recognize, without departing from the spirit and scope of the present invention, can use various differences
Mode described embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting
Scope of the claims processed.In addition, in this manual, accompanying drawing is drawn not in scale, and identical reference table
Show identical part.
Gas piping system band gas method for repairing and mending described in one embodiment of the present of invention comprises the following steps：
First, two armful cylinder pieces that can be relatively fastened on gas piping are prepared in advance, wherein, embrace cylinder pieces for this two and exist
Relatively it is fastened on the thin tubular structure in thick two in centre of formation encirclement gas piping when on gas piping, and the tubulose
Two of structure is fitted snugly on the gas piping, and the inside middle of the tubular structure is by being located at least one described armful of cylinder
Feed pipe on piece is communicated with the external world.
Fig. 1 is transverse side view, shows that the cylinder piece of being embraced by two described in one embodiment of the present of invention is fastened and formed
The thin tubular structure in the thick two in centre, Fig. 2 is longitudinal side view, from another angle show Fig. 1 in tubular structure, figure
3 be sectional view, shows the vertical section of the tubular structure in Fig. 1.As shown in Figure 1 to Figure 3, two sizes are identical, symmetrical shape
Embrace cylinder piece 1a, 1b the thin tubular structure 1 in middle thick two can be formed by relative fastening.Wherein at least one embraces cylinder
Piece (for example embracing a piece 1a) is provided with feed pipe 2.Flange 3 can be provided with the buckling surface that two are embraced cylinder piece 1a, 1b, passes through flange
Screw on 3 and the bolt 4 with screw cooperation, embracing cylinder piece 1a, 1b for two can tightly fasten.The present invention is not limited
In this, tightly fastened in fact, by band two can also be made to embrace cylinder piece 1a, 1b.In addition, embracing the feed pipe on cylinder piece
2 are also provided with valve 5 or block.
It is ready to after above-mentioned armful of cylinder piece, air leakage point is determined in gas piping system.Gas piping system includes coal gas
Pipeline and the compensator being connected between gas piping.Easily leaked air generally at compensator a little, in the present embodiment,
Air leakage point is occurred in that at compensator, air leakage point is occurred in that in other embodiments or on gas piping.Gas leakage is determined
After point, embrace cylinder piece 1a, 1b by foregoing two and be relatively fastened on the gas piping near the air leakage point so that the gas leakage
Point is in two inside middles for embracing the tubular structure 1 that cylinder piece 1a, 1b are formed.Fig. 4 is transverse side view, shows the present invention
One embodiment described in embrace cylinder pieces by two and be relatively fastened on state on the gas piping near air leakage point, Fig. 5 is
Sectional view, shows that two in Fig. 4 are embraced the state that cylinder piece is relatively fastened on the gas piping near air leakage point.Such as Fig. 4-
Shown in 5, because two of tubular structure 1 can be fitted snugly on gas piping 6, and due between two detail of tubular structure 1
Slightly, therefore, a closing space, the closing space are just formed near the air leakage point on the compensator 7 in gas piping system
(that is, the inside middle of tubular structure 1) is communicated by the feed pipe 2 being located on armful cylinder piece with the external world.
It should be noted that before two armfuls of cylinder pieces 1a, 1b are fastened on into gas piping 6, preferably gas piping 6 is connect
The position for touching armful cylinder piece 1a, 1b is cleaned out, when cylinder piece 1a, 1b is embraced in installation on gas piping 6, used spanner crowbar etc.
Instrument is preferably all using copper instrument, and preferably coating butter, to prevent electrostatic fire.Breathing need to be worn during operating personnel's operation
Device and gas leak detector.
In order to preferably seal, embrace cylinder piece 1a, 1b by two and be relatively fastened on the gas piping 6 near air leakage point
When, it can be used between cylinder piece 1a, 1b buckling surface is embraced and embracing between cylinder piece 1a, 1b and the contact surface of gas piping 6
Rubber blanket or polytetrafluoroethylene (PTFE) strip 8 are sealed.
After two armfuls of cylinder pieces 1a, 1b are relatively fastened on the gas piping 6 near air leakage point, by embracing on cylinder piece
Feed pipe 2 fill grouting material 9 to embracing the inside of tubular structure 1 that cylinder piece 1a, 1b formed, and solidify grouting material 9 with up to
To predetermined strength, gas leak is thus temporarily stopped.Fig. 6 is sectional view, is shown described in one embodiment of the present of invention
The state that grouting material is injected in the tubular structure that is formed of cylinder pieces is embraced at two.
The selection of grouting material is not limited, and grouting material is preferably provided with following features：Self drainage is good, it is fast hard, early it is strong, without receipts
Contracting, microdilatancy and not aging.
After grouting material 9 is solidified to predetermined strength, checks and determine without any gas leak, then, to embrace a cylinder piece 1a,
Gap between 1b, to embrace gap between cylinder piece 1a, 1b and gas piping 6 and the mouth of pipe to feed pipe 2 to carry out welding close
Envelope.
Preferably, when carrying out welded seal to the gap embraced between cylinder piece 1a, 1b, non-bolt position can be first welded, so
Bolt 4 is cut off afterwards, and the position after bolt 4 is cut off in welding.It can so ensure that the sealing of welding position is good.
By above-mentioned method for repairing and mending, it can ensure to mend the air leakage point of gas piping for a long time.Until when the whole audience is overhauled,
Gas piping is stopped the supple of gas or steam, then this repair part is removed, the gas piping or compensator more renewed.
Understand, using the method for the present invention air leakage point of gas piping system is repaired with practice from the above description
When, a closing space is set up near air leakage point first with a pair armfuls of cylinder pieces, then, grouting is injected into the closing space
Material, and grouting material is solidified, sample is temporarily just stopped to the leakage of coal gas, then, sealing weldering has been carried out in the case where not stopping the supple of gas or steam
Connect, so as to ensure repairing quality for a long time, and ensure because grouting material generation crack to cause secondary after repairing
Gas leak.Whole mending course is band gas mending course, without stopping the supple of gas or steam, and repairing efficiency height, high safety, cost
Low, quality is good.Workmen used in this method for repairing and mending is few, short time limit, applicability and workable, and peace can not only be eliminated in time
Full hidden danger, the normal safety in production of guarantee, can also save a large amount of maintenance costs.
It will be appreciated by those skilled in the art that the gas piping system band gas repairing side proposed for the invention described above
Method, can also make various improvement and combination on the basis of present invention is not departed from.Therefore, protection scope of the present invention should
Determined when by the content of appended claims.
Claims (5)
1. a kind of gas piping system band gas method for repairing and mending, comprises the following steps：
1) two armful cylinder pieces that can be relatively fastened on gas piping are prepared in advance, wherein, this two are embraced cylinder pieces relatively
It is fastened on and the thin tubular structure in the thick two in centre for surrounding the gas piping is formed when on gas piping, and the tubular structure
Two is fitted snugly on the gas piping, and the inside middle of the tubular structure is by being located at least one described armful of cylinder piece
Feed pipe is communicated with the external world；
2) air leakage point is determined in gas piping system, and described two armfuls of cylinder pieces are relatively fastened near the air leakage point
On gas piping so that the air leakage point is in the inside middle for the tubular structure that described two armfuls of cylinder pieces are formed；
3) inside of the tubular structure formed by the feed pipe on described armful of cylinder piece to described armful of cylinder piece fills grouting material, and
Grouting material solidification is set to reach predetermined strength；
4) to the gap between described armful of cylinder piece, to the gap between described armful of cylinder piece and the gas piping and to described
The mouth of pipe of feed pipe carries out welded seal.
2. gas piping system band gas method for repairing and mending as claimed in claim 1, wherein, on the buckling surface of described two armfuls of cylinder pieces
Provided with flange, the bolt coordinated by the screw on the flange and with the screw can be such that described two armfuls of cylinder pieces relatively buckle
Close on gas piping.
3. gas piping system band gas method for repairing and mending as claimed in claim 1, wherein, the feed pipe on described armful of cylinder piece is also set
There are valve or block.
4. gas piping system band gas method for repairing and mending as claimed in claim 1, wherein, described two armfuls of cylinder pieces are relatively buckled
When closing on the gas piping near the air leakage point, between the buckling surface of described armful of cylinder piece and in described armful of cylinder piece and institute
State between the contact surface of gas piping and to be sealed using rubber blanket or polytetrafluoroethylene (PTFE) strip.
5. gas piping system band gas method for repairing and mending as claimed in claim 2, wherein, the gap between described armful of cylinder piece is entered
During row welded seal, non-bolt position is first welded, then bolt is cut off, and the position after bolt is cut off in welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701366.6A CN105351677B (en) | 2015-10-26 | 2015-10-26 | Gas piping system band gas method for repairing and mending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701366.6A CN105351677B (en) | 2015-10-26 | 2015-10-26 | Gas piping system band gas method for repairing and mending |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351677A CN105351677A (en) | 2016-02-24 |
| CN105351677B true CN105351677B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510701366.6A Active CN105351677B (en) | 2015-10-26 | 2015-10-26 | Gas piping system band gas method for repairing and mending |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627027B (en) * | 2016-04-01 | 2017-10-31 | 西南石油大学 | A kind of duct closing type device of hydraulic pressure top tight sealing |
| CN105757373B (en) * | 2016-04-22 | 2017-12-01 | 无锡商业职业技术学院 | A kind of gas leakage detection and the pipeline sealing device for filling up integral type |
| CN106523848A (en) * | 2016-11-16 | 2017-03-22 | 深圳市燃气集团股份有限公司 | City gas polyethylene pipe safe operation maintenance realization method and system |
| CN113137530A (en) * | 2021-05-07 | 2021-07-20 | 江苏永钢集团有限公司 | Online leakage blocking device and method for gas pipeline |
| CN115143340A (en) * | 2022-07-26 | 2022-10-04 | 北京市燃气集团有限责任公司 | Gas pipeline welded junction gas leakage rapid first-aid repair and monitoring method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145123Y (en) * | 2008-01-22 | 2008-11-05 | 重庆钢铁(集团)有限责任公司 | Seal cover for first-aid repairing gas pipeline |
| JP2012215474A (en) * | 2011-03-31 | 2012-11-08 | Mitsubishi Heavy Ind Ltd | Coolant piping structure |
| CN202419036U (en) * | 2012-01-04 | 2012-09-05 | 中国海洋大学 | Expansion type self-stress grouting clamp |
| CN203023737U (en) * | 2012-12-28 | 2013-06-26 | 中国海洋大学 | Short-bolt type expansive self-stress grouting hoop |
| CN204254140U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气股份有限公司 | sealing clamp for pipe fitting |
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2015
- 2015-10-26 CN CN201510701366.6A patent/CN105351677B/en active Active
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| CN105351677A (en) | 2016-02-24 |
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