CN106764229A - A kind of Gas Pipe plugging device and method for blocking - Google Patents
A kind of Gas Pipe plugging device and method for blocking Download PDFInfo
- Publication number
- CN106764229A CN106764229A CN201710011035.9A CN201710011035A CN106764229A CN 106764229 A CN106764229 A CN 106764229A CN 201710011035 A CN201710011035 A CN 201710011035A CN 106764229 A CN106764229 A CN 106764229A
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- CN
- China
- Prior art keywords
- gas pipe
- face
- piston rod
- plugging device
- piston
- 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.)
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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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
- F16L55/1141—Plugs the plug being made of elastic material
Abstract
A kind of Gas Pipe plugging device, is related to gas works field, and it includes power set, cushion and pressing plate；Power set include gray iron, piston and piston rod；Chamber is provided with cylinder body, cylinder body possesses first end face and second end face, and piston rod includes first end and the second end；Piston is fixedly connected with piston rod, and piston rod runs through cylinder body；Cushion is arranged between pressing plate and first end face.The apparatus structure is simply easy to use, quickly can be docked with Gas Pipe, and can closely be fitted with combustion gas inside pipe wall by power set, and plugging effect is good, being capable of effective prevent leakage.Based on above-mentioned Gas Pipe plugging device, present invention also offers a kind of method for blocking.
Description
Technical field
The present invention relates to gas works field, in particular to a kind of Gas Pipe plugging device and method for blocking.
Background technology
Gas pipeline overhauled or the process safeguarded in the middle of, because welding procedure need to stop to whole section of gas pipeline
Gas, emptying operation.After being zero in manifold pressure, due to the reason such as pipe diameter is big, pipeline is long, low head high is big, in pipeline
Very likely also have residual combustion gases, if these combustion gas are once discharged into the external world, the combustion gas for easily occurring to be leaked by these fire and
The security incident of initiation.Therefore, it is necessary to gas pipeline be blocked, is moved in the middle of the process entirely safeguarded to gas pipeline
Fire welding, to prevent the gas leakage in Gas Pipe from firing, while also assures that the whole safety for safeguarding job site.
And in the middle of existing technology, when weld job closure is carried out to gas pipeline, due to the complex operation of plugging device,
Need to take the regular hour, thus there is the risk of middle generation part gas leakage at the construction field (site).In addition, existing closure dress
Put in the middle of the process for using, due to the unstable working condition of plugging device, after plugging device is installed in Gas Pipe,
Situation about also often leaking, significantly increases the operating risk of job site.
The content of the invention
It is an object of the invention to provide a kind of Gas Pipe plugging device, by the Gas Pipe plugging device, can be to combustion
Tracheae is effectively blocked, and the apparatus structure is simple, esy to use, safe and reliable, and it is right quickly can be carried out with Gas Pipe
Connect installation, and convenient disassembly, good airproof performance, the wind that combustion gas is fired when operation can be reduced while operating efficiency is improved
Danger, improves the safety coefficient of job site.
Another object of the present invention is to, there is provided a kind of method for blocking, it makes use of above-mentioned Gas Pipe plugging device, will
It is installed in Gas Pipe, improves the efficiency of closure, and can also reduce the risk that gas leakage is fired.
What embodiments of the invention were realized in：
A kind of Gas Pipe plugging device, including power set, cushion and pressing plate；Power set include gray iron, work
Plug and piston rod；Chamber is provided with cylinder body, cylinder body possesses first end face and second end face, and piston rod includes first end and second
End；Second end face is provided with the cylinder cap mounting hole for installing cylinder cap, and first end face and cylinder cap are provided with piston rod by hole；Piston and piston
Bar is fixedly connected, and piston rod runs through cylinder body through two piston rods by hole, and piston is located in chamber, first end and the second end
Outside cylinder body；Cylinder cap and cylinder cap mounting hole, piston and chamber and piston rod and piston rod between hole by being equipped with sealing
Circle；Second end face is provided with via, and piston is formed close to the appearance matter chamber of first end face with chamber, and via is led with matter chamber is held
It is logical；First end is connected with pressing plate, and cushion is arranged between pressing plate and first end face.
After by Gas Pipe plugging device loading Gas Pipe, piston rod is driven by the power set of Gas Pipe plugging device
It is mobile so that cushion deforms under the pressure effect of pressing plate, in the middle of the process deformed when cushion, the part meeting of its deformation
Closely fitted with the inwall of Gas Pipe, play sealing and fixed effect, the process can be fast in the presence of power set
The carrying out of speed.
In an embodiment of the present invention：
Power set are hydraulic power unit or Pneumatic propelling plant.
In an embodiment of the present invention：
Cylinder body periphery is provided with the external screw thread adaptable with the internal thread of Gas Pipe terminal interior surface.
In an embodiment of the present invention：
Piston is with piston rod by integral type is made.
In an embodiment of the present invention：
O-ring seal is provided between pressing plate and the contact surface of first end.
In an embodiment of the present invention：
Piston, piston rod, cylinder body and pressing plate are made up of aluminium alloy.
In an embodiment of the present invention：
Cushion is made up of macromolecule silica gel.
In an embodiment of the present invention：
The corner arc transition of pressing plate.
In an embodiment of the present invention：
Pressing plate is provided with annular protrusion with the contact surface of cushion.
A kind of method for blocking, it uses above-mentioned Gas Pipe plugging device；
Method for blocking includes herein below：
Gas Pipe plugging device is placed in one end of Gas Pipe, and the second end face of cylinder body is exposed outside Gas Pipe；
High-pressure medium is input into matter chamber is held by via, drives piston rod band dynamic pressure plate near first end face, make elasticity
Pad is produced and is radially expanded and in sealing contact with the inner peripheral surface of Gas Pipe by pressing plate and first end face extruding.
Technical scheme at least possesses following beneficial effect：
The Gas Pipe plugging device that embodiments of the invention are provided, it can be blocked to Gas Pipe, the device knot
Structure is simple, esy to use, safe and reliable, and abutting joint, and good airproof performance can be quickly carried out with Gas Pipe, it is possible to increase
Risk is fired when gas leakage and construction operation are reduced while operating efficiency, the safety coefficient of job site is improve.
The method for blocking that the present invention is provided, it makes use of above-mentioned Gas Pipe plugging device, is installed in Gas Pipe,
The efficiency of closure is improve, and the risk of gas leakage can also be reduced.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the Gas Pipe plugging device structural representation in the embodiment of the present invention；
Fig. 2 is the powerplant configuration schematic diagram in the embodiment of the present invention；
Fig. 3 is the appearance matter chamber schematic diagram in the embodiment of the present invention；
Fig. 4 is the cushion scheme of installation in the embodiment of the present invention；
Fig. 5 is the O-ring seal scheme of installation in the embodiment of the present invention；
Fig. 6 is that the cylinder body external screw thread in the embodiment of the present invention sets schematic diagram.
In figure：10- Gas Pipe plugging devices；120- power set；130- cushions；140- pressing plates；121- cylinder bodies；122-
Piston rod；123- first ends；The ends of 124- second；125- first end faces；126- second end faces；127- external screw threads；128- cylinder head；
129- piston rods pass through hole；1211- cylinder head mounting holes；1221- pistons；1261- vias；150- sealing rings；160- holds matter
Chamber；170- O-ring seals.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on ", D score, etc. instruction orientation or position relationship be
Based on orientation shown in the drawings or position relationship, or the orientation usually put when using of the invention product or position relationship,
It is for only for ease of the description present invention and simplifies description, must has rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ",
" second " etc. is only used for distinguishing description, and it is not intended that indicating or implying relative importance.
Embodiment 1
Fig. 1 is refer to, Fig. 1 shows the Gas Pipe plugging device 10 that will be described below.Can from figure
Go out, the Gas Pipe plugging device 10 mainly includes power set 120, cushion 130 and pressing plate 140.
Refer to Fig. 2, Fig. 2 shows the primary structure of power set 120, power set 120 mainly include cylinder body 121,
Cylinder head 128, piston 1221 and piston rod 122, the inside of cylinder body 121 is hollow chamber, and cylinder body 121 possesses first end face
125 and second end face 126, second end face 126 is provided with the cylinder head mounting hole 1211 for installing cylinder head 128, first end face 125 and
Cylinder head 128 is provided with piston rod by hole 129；The two ends of piston rod 122 are respectively the end 124 of first end 123 and second, piston
1221 with piston rod 122 by integral type is made, piston rod 122 is through two piston rods by the through cavities of hole 129 and installed in cylinder
On body 121, and the end 124 of first end 123 and second of piston rod 122 is respectively positioned on outside cylinder body 121, and piston 1221 is located at chamber
It is interior；Cylinder head 128 and cylinder head mounting hole 1211, piston 1221 and chamber and piston rod 122 and piston rod by hole 129 it
Between be equipped with sealing ring 150.
Fig. 3 is refer to, while piston rod 122 runs through 121 internal cavity of cylinder body, piston rod 122 yet forms both with chamber and lean on
The appearance matter chamber for accommodating conducting pressure medium of nearly first end face 125, and opened on the end face at the second end 124 on cylinder body 121
There is via 1261, the via 1261 conducting the appearance matter chamber 160 and outer pipeline, in the middle of the process for using, by outer tube
Road direction holds the medium of injection conducting pressure in matter chamber 160 so that hold the pressure increase in matter chamber 160, due to the appearance matter chamber
Room 160 pressure increase and the pressure in the external world is smaller so that piston rod 122 under the effect of the pressure relative to cylinder body 121 from
First end 123 is moved up to the side at the second end 124.
Be would know that by the above, in the middle of prior art the medium of the conducting pressure of power set 120 can be liquid or
Gas, therefore according to above-mentioned principle, the power set 120 can be made hydraulic power unit 120 or Pneumatic propelling plant 120.
Because in the middle of the process of specific implementation, hydraulicdriven precision is higher, in the middle of the process of specific implementation, power set 120
Preferably should be driven using hydraulic cylinder.Therefore in the middle of the present embodiment, power set 120 use hydraulic power unit 120.
Can also be seen that the first end 123 of the piston rod 122 outside cylinder body 121 passes through bullet from Fig. 4 and with reference to Fig. 1
Property pad 130 and be connected with pressing plate 140, the connected mode of pressing plate 140 and piston rod 122 is to be threadedly coupled.
Fig. 5 is refer to, O-ring seal 170 also can be set between pressing plate 140 and the contact surface of piston rod 122, in piston rod
In the middle of 122 processes being connected with pressing plate 140, can crush seal cushion rubber 170 so that O-ring seal 170 and piston rod 122 and
Contact between pressing plate 140 is more tight, it is therefore intended that improve the air-tightness of the device.
In order that obtaining, above-mentioned sealing effectiveness is more effective, ring is provided with the contact surface of pressing plate 140 and cushion 130
The projection of shape, contacts and extrudes in the middle of the process of cushion 130 in pressing plate 140 with cushion 130, the meeting of cushion 130 and pressing plate
140 surface is closely fitted, especially at annular protrusion, while annular protrusion is fitted completely, also according to convex annular
The sealing for foring annular is acted, and the sealing of the annular is formed according to the profile of annular protrusion, and pressing plate 140 is to cushion
130 bigger annular sealing effectiveness of pressure is more obvious, thus airtight in the middle of the process for compressing cushion 130 to increase
Property.In other embodiments of the invention, setting for annular protrusion can choose whether to set ring according to different use environments
Shape is raised, and annular protrusion profile size and quantity.
Installation site according to above-mentioned cushion 130 can be known, because cushion 130 is installed on pressing plate 140 and liquid
Between the cylinder body 121 of cylinder pressure, and pressing plate 140 is connected with the piston rod 122 of power set 120, by piston rod 122 relative to
The movement of the cylinder body 121 of hydraulic cylinder can be moved with dynamic pressure plate 140, it is possible thereby to change the cylinder body 121 of pressing plate 140 and hydraulic cylinder
The distance between, because cushion 130 is just between the cylinder body 121 of pressing plate 140 and hydraulic cylinder, it is possible to by piston
The mobile extruding cushion 130 of bar 122 so that cushion 130 is deformed upon, when the device is arranged in Gas Pipe, leads to
The deformation of cushion 130 is crossed, enables to the crushed element of cushion 130 to be fitted with the inwall of Gas Pipe, thus, with good
The Gas Pipe plugging device 10 is fixed in Gas Pipe while good air-tightness.
When in view of the device is installed in Gas Pipe, in order to prevent the device from being collided with the inwall of Gas Pipe
Or unnecessary damage is produced to combustion gas inside pipe wall and the device because of contact, and pressing plate 140 is in the mistake installed
Cheng Dangzhong is entered into Gas Pipe at first, therefore the corner on the end face of the close first end 123 of pressing plate 140 is provided with circular arc
Transition.
In other embodiments of the invention, Fig. 6 is refer to, due in the middle of the process for being blocked, it is possible to can be right
Gas Pipe carries out pressure testing detection, thus can cause the pressure change in Gas Pipe, as a rule when pressure testing detection is carried out, often
The pressure in Gas Pipe can be increased, therefore in order to improve the reliability of the Gas Pipe plugging device 10, outside the cylinder body 121 of the device
Week sets external screw thread 127, and the internal thread on the external screw thread 127 and pipeline outside cylinder body 121 is caused in the middle of the process installed
Coordinated, thus improve the device in sealing property.
It should be noted that：
In the present embodiment, the specific size of Gas Pipe plugging device 10 needs to match with the internal diameter size of Gas Pipe,
Therefore in the middle of the process for carrying out the selection of Gas Pipe plugging device 10, can be expired by adjusting the size of Gas Pipe plugging device 10
The need for foot difference Gas Pipe.
In the present embodiment, various situations are considered, should be preferably high in the making material from cushion 130
Molecule silica gel.In other embodiments of the invention, it is also possible to consider to use the other materials such as rubber.
In the present embodiment, the material of piston rod 122, cylinder body 121 and pressing plate 140 preferably aluminum alloy materials should make.
Comprised the steps of using the method for blocking of the Gas Pipe plugging device 10：
Gas Pipe plugging device 10 is placed in one end of Gas Pipe, and the second end face 126 of cylinder body 121 is exposed in combustion
Outside tracheae；
High-pressure medium is input into matter chamber is held by via 1261, drives piston rod 122 with dynamic pressure plate 140 near first end
Face 125, makes cushion 130 extrude generation by pressing plate 140 and first end face 125 and is radially expanded and is sealed with the inner peripheral surface of Gas Pipe
Contact.
The operation principle of the Gas Pipe plugging device 10 is：
When Gas Pipe breaks down, it is necessary to be safeguarded to Gas Pipe, it is necessary to by portion in the middle of the process safeguarded
Point Gas Pipe is blocked, and prevents the remaining gas in Gas Pipe to be discharged into the external world.In the middle of the process for being blocked first
Need to be properly attached to need in the Gas Pipe that is blocked by the device.
The movement of piston rod 122 is driven by power set 120, at the same time, piston rod 122 is moved with dynamic pressure plate 140
And cushion 130 is extruded, when cushion 130 is deformed upon in the middle of extruded process, and the part by deforming and combustion
The laminating of the inwall of tracheae so realize closure and sealing purpose.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of Gas Pipe plugging device, it is characterised in that：The Gas Pipe plugging device includes power set, cushion and pressure
Plate；
The power set include gray iron, piston and piston rod；Chamber is provided with the cylinder body, the cylinder body possesses
End face and second end face, the piston rod include first end and the second end；The second end face is provided with installs the cylinder cap
Cylinder cap mounting hole, the first end face and the cylinder cap are provided with piston rod by hole；The piston is fixed with the piston rod and connected
Connect, and the piston rod runs through the cylinder body through two piston rods by hole, and the piston is located in the chamber, institute
State first end and second end is located at outside the cylinder body；
The cylinder cap passes through with the cylinder cap mounting hole, the piston and the chamber and the piston rod with the piston rod
Sealing ring is equipped between hole；
The second end face is provided with via, and the piston is formed close to the appearance matter chamber of the first end face with the chamber,
The via is turned on the appearance matter chamber；
The first end is connected with the pressing plate, and the cushion is arranged between the pressing plate and the first end face.
2. Gas Pipe plugging device according to claim 1, it is characterised in that：The power set are hydraulic power unit
Or Pneumatic propelling plant.
3. Gas Pipe plugging device according to claim 1, it is characterised in that：The cylinder body periphery is provided with and combustion gas pipe end
The adaptable external screw thread of the internal thread of portion's inner surface.
4. Gas Pipe plugging device according to claim 3, it is characterised in that：The piston is integrated with the piston rod
Formula is made.
5. Gas Pipe plugging device according to claim 1, it is characterised in that：Pressing plate contact with the first end
O-ring seal is provided between face.
6. Gas Pipe plugging device according to claim 1, it is characterised in that：The piston, the piston rod, the cylinder
Body and the pressing plate are made up of aluminium alloy.
7. Gas Pipe plugging device according to claim 1, it is characterised in that：The cushion is by macromolecule silica gel system
Into.
8. Gas Pipe plugging device according to claim 1, it is characterised in that：The corner arc transition of the pressing plate.
9. Gas Pipe plugging device according to claim 1, it is characterised in that：Pressing plate contact with the cushion
Face is provided with annular protrusion.
10. a kind of pipe plugging method, it is characterised in that：The pipe plugging method uses claim 1-9 any one
Described Gas Pipe plugging device；
The method for blocking is comprised the steps of：
The Gas Pipe plugging device is placed in one end of Gas Pipe, and the second end face of the cylinder body is exposed in the combustion
Outside tracheae；
High-pressure medium is input into the appearance matter chamber by the via, drives the piston rod to drive the pressing plate near described
First end face, make the cushion by the pressing plate and the first end face extruding produce be radially expanded and with the Gas Pipe
Inner peripheral surface is in sealing contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011035.9A CN106764229A (en) | 2017-01-06 | 2017-01-06 | A kind of Gas Pipe plugging device and method for blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011035.9A CN106764229A (en) | 2017-01-06 | 2017-01-06 | A kind of Gas Pipe plugging device and method for blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764229A true CN106764229A (en) | 2017-05-31 |
Family
ID=58951024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710011035.9A Pending CN106764229A (en) | 2017-01-06 | 2017-01-06 | A kind of Gas Pipe plugging device and method for blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764229A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059382A (en) * | 2019-12-06 | 2020-04-24 | 重庆双五汽车零部件有限公司 | Ventilation device for oil tank air tightness detection |
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| CN202884364U (en) * | 2012-10-26 | 2013-04-17 | 苏州辛帝斯燃气密封材料有限公司 | Gas pipeline first-aid repair plugging assembly |
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| CN105805486A (en) * | 2016-02-24 | 2016-07-27 | 北京世杰通石油科技有限公司 | Plugging device |
| CN206398256U (en) * | 2017-01-06 | 2017-08-11 | 重庆燃气集团股份有限公司 | A kind of Gas Pipe plugging device and Gas Pipe plugging structure |
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- 2017-01-06 CN CN201710011035.9A patent/CN106764229A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673018U (en) * | 2010-04-23 | 2010-12-15 | 东莞鸿图金属压铸电器制造有限公司 | Expansion type round hole sealability detection auxiliary device |
| CN202884364U (en) * | 2012-10-26 | 2013-04-17 | 苏州辛帝斯燃气密封材料有限公司 | Gas pipeline first-aid repair plugging assembly |
| CN204312930U (en) * | 2014-12-12 | 2015-05-06 | 中国海洋石油总公司 | Internal-expansion type submarine pipeline hydraulic booster plugging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111059382A (en) * | 2019-12-06 | 2020-04-24 | 重庆双五汽车零部件有限公司 | Ventilation device for oil tank air tightness detection |
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Application publication date: 20170531 |
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