CN107883112A - gas pipeline plugging device - Google Patents
gas pipeline plugging device Download PDFInfo
- Publication number
- CN107883112A CN107883112A CN201711274243.4A CN201711274243A CN107883112A CN 107883112 A CN107883112 A CN 107883112A CN 201711274243 A CN201711274243 A CN 201711274243A CN 107883112 A CN107883112 A CN 107883112A
- Authority
- CN
- China
- Prior art keywords
- bladders
- plugging device
- guide pipe
- blocked shot
- gas pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to a kind of gas pipeline plugging device, including outer tube, guide pipe and lower blocked shot, the end that the lower blocked shot stretches into guide pipe is connected with bladders plugging device, the first counter balance pocket of sealing is formed between the guide pipe and outer tube, the second counter balance pocket of sealing is formed between the lower blocked shot and guide pipe, first counter balance pocket is provided with the first balance port, and second counter balance pocket is provided with the second balance port；The bladders plugging device forms by the first bladders, the second bladders and with the connecting portion that lower blocked shot is connected, and first bladders, the second bladders both ends are formed with bladders joint, and guide spring is provided between two bladders joints of second bladders；The lower blocked shot is provided with the first ventilating joint connected with the first bladders and the second ventilating joint connected with the second bladders.The device can ensure not influenceing normal use combustion gas when repairing pipeline, can avoid wasting combustion gas resource and not pollute the environment.
Description
Technical field
The present invention relates to a kind of gas pipeline plugging device, belong to gas pipeline equipment technical field.
Background technology
In the distributing system of gas, influenceed by various complicated factors, the underground that is either laid in still is installed
Gas pipeline on the ground, the danger of leakage be present.In addition, with people in terms of production and living to the continuous of demand on gas
Increase, the laying of combustion gas is more and more in city, and the failure of gas pipeline also becomes more therewith, and this is just needed to being currently running
Gas pipeline reconstructed, extended and rushed to repair, gas pipeline plugging construction consequentiality.
Because combustion gas is explosives, inflammable items, once occur to leak by the safety of the life of direct crisis people and property, because
This common gas pipeline maintenance and replacing options are direct cut-out sources of the gas, and the gas in gas pipeline is drained, then carried out
Weld mending-leakage or replacing processing.But the drawbacks of this method, is：Expend the combustion gas resource, pollution ring that the time is long, waste is valuable
Border and the normal life for having a strong impact on people.
With the development of gas transmission ＆ distribution, the band gas of the renovating of gas ductwork, operation maintenance and newly-built pipeline is made
Actual condition is widely used in already.The nineties start the on-line production holing and sealing machine used, are widely used to Gas Pipe
In line operation under pressure.The band sealing gland on middle pressure pipeline, which blocks up mode, at present mainly expansion type and leather cup type, but both the above is sealed
All methods all there may be a small amount of gas leakage, and when when pipe downstream is constructed, it is necessary to diffuse or be depressured to operate,
Consequently, it is possible to influence the normal life of people.
The content of the invention
The invention solves technical problem to be：The shortcomings that overcoming above-mentioned technology, there is provided one kind when repairing gas pipeline not
Influence normal use combustion gas, waste combustion gas resource and the gas pipeline plugging device not polluted the environment can be avoided.
In order to solve the above-mentioned technical problem, technical scheme proposed by the present invention is：A kind of gas pipeline plugging device, including
Outer tube, guide pipe and lower blocked shot, the outer tube can connect with the default pipe of gas pipeline tapping to be connected, the guide pipe insertion
It can move in outer tube and along the length direction of outer tube, the lower blocked shot is inserted into guide pipe and can be along the length side of guide pipe
To movement, the end that the guide pipe stretches into outer tube is formed with breach towards subject-oriented direction, and the lower blocked shot stretches into guide pipe
End is connected with bladders plugging device；The outer tube is provided with the first holder for being used for clamping guide pipe, is set on the guide pipe
There is the second holder for clamping lower blocked shot；The first counter balance pocket of sealing is formed between the guide pipe and outer tube, under described
Forming the second counter balance pocket of sealing between blocked shot and guide pipe, first counter balance pocket is provided with the first balance port, and described second
Counter balance pocket is provided with the second balance port；The bladders plugging device is connected soft by the first bladders, the second bladders and with lower blocked shot
Property connecting portion composition, the connecting portion, the first bladders, the second bladders be sequentially connected and connect, first bladders, the second bladders
Inflation；First bladders, the second bladders both ends are formed with bladders joint, two bladders joints of second bladders it
Between be provided with guide spring；The lower blocked shot is provided with the first ventilating joint connected with the first bladders and connected with the second bladders
The second ventilating joint.
Preferably, it is removable connection between the lower blocked shot and bladders plugging device.
Preferably, bladders joint of second bladders away from connecting portion one end is provided with the guide head of smooth outer surface.This
Sample is easy to bladders plugging device to enter gas pipeline.
The first counter balance pocket of sealing is formed between heretofore described guide pipe and outer tube, its structure is similar to cylinder, its
Middle guide pipe is equivalent to piston rod, and outer tube is equivalent to cylinder body；The second balance of sealing is formed between the lower blocked shot and guide pipe
Chamber, its structure are also similar to that cylinder, wherein lower blocked shot, equivalent to piston rod, guide pipe is equivalent to cylinder body.First balance port
It is charge and discharge gas port with the second balance port, can be by the first balance port and the second balance port to the first counter balance pocket, the second counter balance pocket
It is inflated so as to drive guide pipe or lower blocked shot to move down.
The gas pipeline plugging device of the present invention is before use, need to weld can be connected with outer tube on gas pipeline in advance
Pipe connect, connect installation sandwich valve in pipe, pipe connect in gas pipeline on punch.After the completion of punching, you can connect peace in pipe
The gas pipeline plugging device of the present invention is filled, first bladders plugging device is arranged on lower blocked shot, outer tube is connect with pipe and is attached,
The first ventilating joint and the second ventilating joint are connected respectively with vacuum machine, so as to respectively take out the air in first, second bladders
Vacuum, then lower blocked shot is installed in guide pipe.Now, sandwich valve is opened, the first holder is unclamped, passes through the first balance port
To the first counter balance pocket filling with inert gas, guide pipe is driven to be moved downward to along outer tube in the hole of gas pipeline under the influence of air pressure
Specified location, then lock the first holder, unclamp the second holder, inertia is filled to the second counter balance pocket by the second balance port
Gas, so drive lower blocked shot to be moved down along guide pipe under the influence of air pressure, make bladders plugging device lacking by guide pipe
Mouth is slid into gas pipeline, then locks the second holder.Finally by the first ventilating joint, the second ventilating joint respectively to
First bladders, the second bladders are inflated, and block gas pipeline after the first bladders, the second bladders inflation.
The beneficial effect that the present invention is brought is：1）The present invention is when band sealing gland blocks up operation, it is not necessary to cuts off gas pipeline, only
Need after both sides are respectively blocked using the device of the present invention at the pipeline fault, two closure can be filled by prior art
Two sections of gas pipelines for putting outside are attached, and have so ensured the normal use of gas pipeline, and can is to pipeline fault area
Domain carries out construction operation.After the completion of operation, the first bladders, second are diffused by the first ventilating joint, the second ventilating joint respectively
Inert gas in bladders, or directly vacuumized the first bladders, the second bladders with vacuum machine, then lower blocked shot is moved up,
Drive the first bladders, the second bladders to depart from out of gas pipeline, finally move up guide pipe, and close sandwich valve, complete Gas Pipe
Road fault restoration.
2）In the present invention, gas pipeline is entered after being vacuumized due to first, second bladders, so gas pipeline is not
Need disconnected pipe, it is only necessary to open enough first, second bladders of an aperture by.In addition, the present invention only needs in construction operation
With the short series closure pipe fitting of straight tube, compared to existing closure operation technique, it is excellent that the present invention has that cost is low, the activity duration is short
Point.
Screw thread welded tube, straight weldering symbol etc. in usual gas pipeline be present, such bladders can not accomplish zero leakage in closure, together
When requirement of these pipelines to bladders it is high, easily scratch bladders surface, certain potential safety hazard brought to downstream process.Therefore,
The present invention blocks gas pipeline by double bladders, and the logical blowdown piping of double bladders is independent, is independent of each other, therefore improves
Security.In order to further improve security, gas leakage is prevented, improvement of the present invention to above-mentioned technical proposal is：It is described
Bladders joint outer wall between first bladders and the second bladders is provided with diffusion mouth, and the lower blocked shot is provided with and diffuses joint, institute
State and diffuse joint and connected by the first breather pipe through the first bladders with diffusion mouth.Such first bladders, diffusion mouth, the second ball
The road gases of Dan Zhe tri- are all independent, in closure after the first bladders, the closure of the second bladders, between the first bladders, the second bladders
Space diffused by diffusion mouth, accordingly even when the second bladders has tiny leakage, after being diffused by diffusing joint, the first bladders
The pressure being subject to is almost nil, such first bladders just can to can effectively seal pipeline medium, make the perforate of downstream line band gas,
The security of closure operation greatly improves.
Preferably, second ventilating joint is connected by the second breather pipe through the first bladders with the second bladders.Enter
One step, the first breather pipe and the second breather pipe between two bladders joints of first bladders are two layers of concentric circles
Pipe structure.It so can conveniently set and save space.
Bladders plugging device is when entering gas pipeline or being extracted out of gas pipeline, in order that first, second bladders operates
Smoothly, it is desirable to which first, second bladders can bear pressure, also want wall thickness to be thinned as far as possible, but existing rubber bladder is thicker, causes
Difficulty is vacuumized, and is inconvenient to enter gas pipeline.In order to solve the above problems, improvement of the invention is：First ball
Courage and the second bladders work out net by two layers of vulcanised rubber layer and the carbon fiber being fitted tightly between two layers of vulcanised rubber layer
Layer is made.So, first, second bladders can control first, second bladders and expansion because centre is formed with carbon fiber establishment stratum reticulare
Coefficient, increase by the intensity and toughness of first, second bladders, two layers of rubber inside and outside protection, from regardless of whether in vacuum and inflation all
It will not burst.
In actual use, because contacting and being formed for face between gas pipeline after the expansion of first, second bladders
Sealing surface, in general, the area of sealing surface is larger, and sealing effectiveness is poorer, in order to improve sealing effectiveness, improvement of the invention
It is：The raised line of annular is equipped with the outside of first bladders and the second bladders.So the present invention expands first, second bladders
Contacted afterwards between gas pipeline by face and be changed to linear contact lay, reduce sealing area, improve sealing effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the view that bladders plugging device enters after gas pipeline.
Fig. 3 is the structural representation of bladders plugging device in Fig. 1.
Fig. 4 is the schematic cross-section of the first bladders or the second bladders.
Reference：1- sandwich valves, 2- pipes are connect, 3- gas pipelines, 4- outer tubes, blocked shot under 5-, 6- guide pipes, and 7- second is pressed from both sides
Gripping member, the balance ports of 8- second, the holders of 9- first, 10- bladders plugging devices, the balance ports of 11- first, the bladders of 101- first, 102-
Second bladders, 103- connecting portions, 104- bladders joints, 105- guide springs, 106- diffusion mouths, 107- gas-tpe fittings, 108- are led
Compiled to head, the breather pipes of 111- first, the breather pipes of 112- second, the breather pipes of 113- the 3rd, 121- vulcanised rubber layers, 122- carbon fibers
Stratum reticulare processed.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings, and the accompanying drawing of the present embodiment is used for providing enters one to the present invention
Step understands, forms the part of the application.
Embodiment one
The gas pipeline plugging device of the present embodiment, as depicted in figs. 1 and 2, including outer tube 4, guide pipe 6 and lower blocked shot 5, it is oriented to
Pipe 6 is inserted into outer tube 4 and can moved along the length direction of outer tube 4, and lower blocked shot 5 is inserted into guide pipe 6 and can be along guide pipe 6
Length direction movement, the end that guide pipe 6 stretches into outer tube 4 is formed with breach towards subject-oriented direction, and lower blocked shot 5 stretches into guide pipe
6 end is connected with bladders plugging device 10；Outer tube 4 is provided with the first holder 9 for being used for clamping guide pipe 6, is set on guide pipe 6
There is the second holder 7 for clamping lower blocked shot 5.
Outer tube 4 can connect with the perforate of gas pipeline 3, and when implementing, the tapping of gas pipeline 3 is welded with pipe and connects 2,
Pipe connects and sandwich valve 1 is provided with 2, and outer tube 4 and sandwich valve 1 are affixed.In general, sandwich valve 1, the bottom of outer tube 4 are respectively provided with method
Blue disk, outer tube 4 are attached fixation with sandwich valve 1 by ring flange.
The first counter balance pocket of sealing is formed between guide pipe 6 and outer tube 4, its structure is similar to cylinder, the wherein phase of guide pipe 6
When in piston rod, outer tube 4 is equivalent to cylinder body；The second counter balance pocket of sealing, its structure are formed between lower blocked shot 5 and guide pipe 6
Similar to cylinder, wherein lower blocked shot 5, equivalent to piston rod, guide pipe 6 is equivalent to cylinder body.First counter balance pocket is provided with the first balance
Mouth 11, the second counter balance pocket is provided with the second balance port 8, and the first balance port 11 and the second balance port 8 are charge and discharge gas port, can be passed through
First balance port 11 and the second balance port 8 are inflated to the first counter balance pocket, the second counter balance pocket so as to drive guide pipe 6 or lower stifled
Bar 5 moves down.
First holder 9 and the second holder 7 are respectively used to clamp guide pipe 6, lower blocked shot 5, when guide pipe 6 moves,
The first holder 9 is unclamped in advance, and when guide pipe 6 is moved to specified location, the first holder 9 clamps guide pipe 6 again.Equally
Ground, when blocked shot 5 moves instantly, the second holder 7 is unclamped, when lower blocked shot 5 is moved to specified location, the second holder 7 is again
Clamp lower blocked shot 5.
As shown in figure 3, bladders plugging device 10 be connected by the first bladders 101, the second bladders 102 and with lower blocked shot 5 it is soft
Property connecting portion 103 forms, and flexible joint 103 is flexible, and connecting portion 103, the first bladders 101, the second bladders 102 are sequentially connected
Connect, the first bladders 101,102 equal inflatable of the second bladders；First bladders 101, the both ends of the second bladders 102 are formed with bladders
Joint 104, guide spring 105 is provided between two bladders joints 104 of the second bladders 102；Lower blocked shot 5, which is provided with, passes through the 3rd
The first ventilating joint that breather pipe 113 connects with the first bladders 101, and connected by the second breather pipe 112 and the second bladders 102
The second logical ventilating joint.Have two bladders joints 104 between first bladders 101 and the second bladders 102, for connect first,
Second bladders 101,102.The outer wall of one of two bladders joints 104 between first bladders 101 and the second bladders 102 is provided with
Diffusion mouth 106, lower blocked shot 5 are provided with and diffuse joint, diffuse joint by the first breather pipe 111 through the first bladders 101 with
Diffusion mouth 106 connects；Second ventilating joint is connected by the second breather pipe 112 through the first bladders 101 with the second bladders 102
It is logical.Preferably, the first breather pipe 111 and the second breather pipe 112 between two bladders joints 104 of the first bladders 101
For two layers of concentric circles pipe structure, space can be so saved.First ventilating joint, the second ventilating joint and diffuse joint and scheming
In do not mark.
The present embodiment can also make following improve：1）As depicted in figs. 1 and 2, the second bladders 102 is away from connecting portion 103 1
The bladders joint 104 at end is provided with the guide head 108 of smooth outer surface.
2）As shown in figure 4, the first bladders 101 and the second bladders 102 by two layers of vulcanised rubber layer 121 and are brought into close contact
Carbon fiber establishment stratum reticulare 122 between two layers of vulcanised rubber layer 121 is made.
3）The outside of first bladders 101 and the second bladders 102 is equipped with the raised line of annular（Not shown in figure）, the first bladders
101 and the inflation of the second bladders 102 after, with gas pipeline 3 formed line contact sealing, compared to face contact sealing effectiveness it is more preferable.
4）It is removable connection between lower blocked shot 5 and bladders plugging device 10.
The present invention is not limited to the concrete technical scheme described in above-described embodiment, and in addition to the implementation, the present invention may be used also
To there is other embodiment.For those skilled in the art, within the spirit and principles of the invention, that is made appoints
The technical scheme of the formation such as what modification, equivalent substitution, improvement, should be included in the scope of the protection.
Claims (8)
- A kind of 1. gas pipeline plugging device, it is characterised in that：Including outer tube, guide pipe and lower blocked shot, the outer tube can be with combustion The default pipe of feed channel tapping, which connects, to be connected, and the guide pipe is inserted into outer tube and can moved along the length direction of outer tube, The lower blocked shot is inserted into guide pipe and can moved along the length direction of guide pipe, and the guide pipe stretches into the end court of outer tube Subject-oriented direction is formed with breach, and the end that the lower blocked shot stretches into guide pipe is connected with bladders plugging device；The outer tube is provided with the first holder for being used for clamping guide pipe, and the guide pipe, which is provided with, to be used to clamp lower blocked shot Second holder；The first counter balance pocket of sealing, shape between the lower blocked shot and guide pipe are formed between the guide pipe and outer tube Into the second counter balance pocket of sealing, first counter balance pocket is provided with the first balance port, and it is flat that second counter balance pocket is provided with second Heng Kou；The bladders plugging device forms by the first bladders, the second bladders and with the flexible joint that lower blocked shot is connected, the company Socket part, the first bladders, the second bladders are sequentially connected, first bladders, the equal inflatable of the second bladders；First ball Courage, the second bladders both ends are formed with bladders joint, and guide spring is provided between two bladders joints of second bladders；The second ventilation that the lower blocked shot is provided with the first ventilating joint connected with the first bladders and connected with the second bladders Joint.
- 2. gas pipeline plugging device according to claim 1, it is characterised in that：First bladders and the second bladders it Between bladders joint outer wall be provided with diffusion mouth, the lower blocked shot, which is provided with, diffuses joint, and the joint that diffuses passes through through the First breather pipe of one bladders connects with diffusion mouth.
- 3. gas pipeline plugging device according to claim 2, it is characterised in that：Second ventilating joint by through Second breather pipe of the first bladders connects with the second bladders.
- 4. gas pipeline plugging device according to claim 3, it is characterised in that：Positioned at two balls of first bladders The first breather pipe and the second breather pipe between courage joint are two layers of concentric circles pipe structure.
- 5. the gas pipeline plugging device according to any one of claim 1-4, it is characterised in that：Second bladders is remote Bladders joint from connecting portion one end is provided with the guide head of smooth outer surface.
- 6. the gas pipeline plugging device according to any one of claim 1-4, it is characterised in that：First bladders and Second bladders works out stratum reticulare system by two layers of vulcanised rubber layer and the carbon fiber being fitted tightly between two layers of vulcanised rubber layer Into.
- 7. the gas pipeline plugging device according to any one of claim 1-4, it is characterised in that：First bladders and The outside of second bladders is provided with the raised line of annular.
- 8. the gas pipeline plugging device according to any one of claim 1-4, it is characterised in that：The lower blocked shot and ball It is removable connection between courage plugging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274243.4A CN107883112A (en) | 2017-12-06 | 2017-12-06 | gas pipeline plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274243.4A CN107883112A (en) | 2017-12-06 | 2017-12-06 | gas pipeline plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107883112A true CN107883112A (en) | 2018-04-06 |
Family
ID=61772949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274243.4A Pending CN107883112A (en) | 2017-12-06 | 2017-12-06 | gas pipeline plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210396469A1 (en) * | 2018-11-13 | 2021-12-23 | Arcelormittal | Direct reduction shaft furnace with probe for measuring interior gas analysis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145284A1 (en) * | 1981-11-14 | 1983-05-19 | IBS Nagel GmbH & Co Spezialarmaturen, 5630 Remscheid | Device for shutting off gas lines |
| CN1127862A (en) * | 1994-04-08 | 1996-07-31 | 蒂格霍尔姆股份公司 | Blocking method for pipes |
| US20130284297A1 (en) * | 2012-04-27 | 2013-10-31 | Aquasol Corporation | Inflatable Purge Dam Apparatus |
| CN207584269U (en) * | 2017-12-06 | 2018-07-06 | 北京市燃气集团有限责任公司 | Gas pipeline plugging device |
-
2017
- 2017-12-06 CN CN201711274243.4A patent/CN107883112A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145284A1 (en) * | 1981-11-14 | 1983-05-19 | IBS Nagel GmbH & Co Spezialarmaturen, 5630 Remscheid | Device for shutting off gas lines |
| CN1127862A (en) * | 1994-04-08 | 1996-07-31 | 蒂格霍尔姆股份公司 | Blocking method for pipes |
| US20130284297A1 (en) * | 2012-04-27 | 2013-10-31 | Aquasol Corporation | Inflatable Purge Dam Apparatus |
| CN207584269U (en) * | 2017-12-06 | 2018-07-06 | 北京市燃气集团有限责任公司 | Gas pipeline plugging device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210396469A1 (en) * | 2018-11-13 | 2021-12-23 | Arcelormittal | Direct reduction shaft furnace with probe for measuring interior gas analysis |
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Application publication date: 20180406 |