CN109780363A - A kind of plugging device - Google Patents
A kind of plugging device Download PDFInfo
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- CN109780363A CN109780363A CN201711119604.8A CN201711119604A CN109780363A CN 109780363 A CN109780363 A CN 109780363A CN 201711119604 A CN201711119604 A CN 201711119604A CN 109780363 A CN109780363 A CN 109780363A
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- Prior art keywords
- plugging device
- pipeline
- tube body
- platen
- hydraulic
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000002828 fuel tank Substances 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 17
- 238000002955 isolation Methods 0.000 claims description 16
- 230000003447 ipsilateral effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 35
- 239000007788 liquid Substances 0.000 description 27
- 239000010720 hydraulic oil Substances 0.000 description 17
- 239000010985 leather Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000011157 advanced composite material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000282887 Suidae Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The invention discloses a kind of plugging devices, belong to pipeline dimension repairing field.The plugging device includes: pressure cylinder, elastic seal assembly, clamping assembly, platen, driving assembly.Pressure cylinder is axially slidably arranged in wait block in pipeline.Elastic seal assembly is sleeved on pressure cylinder.Clamping assembly is slideably sleeved on pressure cylinder, for sealing pipeline to be blocked, while being clamped on the inner wall of pipeline to be blocked by being axially moved along axial compression elastic seal assembly；Platen is connect with clamping assembly；Driving assembly is connect with platen, for driving platen to be axially moved.Plugging device provided by the invention avoids after repairing operation, and the blind plate for blocking threeway upper port is damaged, or fails because long-time uses, to cause oil and gas leakage, generates security risk.
Description
Technical field
The present invention relates to pipelines to tie up repairing field, in particular to a kind of plugging device.
Background technique
Pipeline transportation is the prevailing traffic mode in oil gas hauling operation, and geological disaster, fault in material, damage etc.
Factor is all easy to cause Pipeline damage, causes oil and gas leakage, and there is only security risks, can cause environmental pollution simultaneously.Cause
This, in time to the pipeline of damage carry out dimension repairing be it is highly important, specifically, to the pipeline of damage carry out dimension repairing when,
A bypass threeway is generally respectively welded on the pipeline of pipeline two sides to be blocked, and (pipeline to be blocked is one in running pipeline
Point), the upper port of two bypass threeways is connected to the pipeline of pipeline two sides to be blocked respectively, direction and the axial direction with closure pipeline
Direction is consistent.Now it is necessary to bypass separating, after mediator depletion wait block pipeline between threeway for two, this could be waited sealing
Plugging line such as is replaced, is repaired at the dimensions repairing work, it is seen then that setting is for separating pipeline to be blocked between two bypass threeways
Plugging device be very necessary.
The prior art is using plugging device as plugging device, to separate pipeline to be blocked.Specifically, in pipeline two sides to be blocked
Pipeline on be respectively welded with a closure threeway, two closure threeways are located between two bypass threeways, and two closure threeways
Left and right port direction it is consistent with the axial direction of pipeline to be blocked.Using tapping machine on the pipeline of pipeline two sides to be blocked
Punching is connected to the upper port for blocking threeway with the pipeline of pipeline to be blocked and pipeline two sides to be blocked.Then, two are blocked
Device is separately mounted to the upper port of two closure threeways, to separate the company between pipeline to be blocked and pipeline two sides to be blocked pipeline
It is logical, pipeline dimension repairing operation can be carried out at this time.After tieing up repairing operation to pipeline, by by-pass line and plugging device respectively from
It is dismantled in bypass threeway and closure threeway, and blind plate is installed respectively with the upper port for blocking threeway in bypass threeway, will bypassed
Threeway and the upper port for blocking threeway block, and prevent from leaking in oil gas transportational process.
The inventor finds that the existing technology has at least the following problems:
The prior art can leave closure threeway after pipeline ties up repairing operation on pipeline, and use blind plate to closure
The upper port of threeway is blocked, and can leave hidden danger to the safe operation of pipeline, once blind plate is damaged, or because making for a long time
With and fail, then be easy to cause oil and gas leakage.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of plugging devices.Specific technical solution is as follows:
A kind of plugging device, the plugging device include: pressure cylinder, are axially slidably arranged in wait block in pipeline；
Elastic seal assembly is sleeved on the pressure cylinder；
Clamping assembly is slideably sleeved on the pressure cylinder, for along compressing axially the elastic seal assembly to close
The pipeline to be blocked is sealed, while by being axially moved on the inner wall for being clamped on the pipeline to be blocked；
Platen is connect with the clamping assembly；
Driving assembly is connect with the platen, for driving the platen to be axially moved.
Specifically, preferably, the plugging device further include: multiple springs are axially arranged on the pressure cylinder and institute
It states between platen, and the both ends of the spring offset with the pressure cylinder and the platen respectively.
Specifically, preferably, the pressure cylinder include: chassis, be co-axially located at the ipsilateral major diameter tube body in the chassis and
Path tube body；
Multiple springs are circumferentially in the uniformly distributed ring cavity between the major diameter tube body and the path tube body；
The elastic seal assembly is sleeved on the major diameter tube body, and one end offsets with the chassis.
Specifically, preferably, the driving component includes: gland and piston；
The end of the path tube body is arranged in the gland, for sealing the path tube body；
The piston includes: piston body and piston rod；
The piston rod of two sides is each passed through the chassis, and connect after passing through the gland with the platen；
It is arranged in the small diameter tube body to the piston body dynamic sealing；
Described device further includes the hydraulic system for driving the piston to be axially moved.
Specifically, preferably, the plugging device further include: spherical pig；
The spherical pig is connect with the piston rod for being pierced by the chassis.
Specifically, preferably, the plugging device further include: for detecting the elastic seal assembly with described wait seal
The gas pressure testing system of leakproofness between plugging line.
Specifically, preferably, the hydraulic system and the gas pressure testing system are integrated in the same cylinder.
Specifically, preferably, the hydraulic system includes: that the first hydraulic lock, the second hydraulic lock, the first 3-position 4-way change
To valve, fuel tank, hydraulic pump；
The path tube cavity of the piston body side passes through the first hydraulic line and first hydraulic lock, described
First three position four-way directional control valve, the hydraulic pump, the fuel tank are sequentially connected to；
The path tube cavity of the piston body other side passes through the second hydraulic line and second hydraulic lock, institute
The first three position four-way directional control valve is stated sequentially to be connected to.
Specifically, preferably, the plugging device further include: the isolation being slideably sleeved on the major diameter tube body
Ring has been disposed radially multiple ventholes；
Elastic seal assembly includes: the first cartridge and the second cartridge；
The clamping assembly, first cartridge, the isolation ring, second cartridge, chassis sequentially phase
It supports；
Pressure testing channel is provided on the major diameter tube body, the one end in the pressure testing channel and the gas pressure testing system connect
It connects, the inner wall of the other end and the isolation ring offsets；
When the elastic seal assembly by described when blocking pipeline sealing, the venthole and the pressure testing channel connect
It is logical.
Specifically, preferably, the gas pressure testing system includes: one end by admission line and the pressure testing channel
Gas control check valve, the second three position four-way directional control valve, gas tank being sequentially connected to, and be arranged in the pressure testing channel and the gas
Control the third pressure sensor on the admission line between check valve；
Second three position four-way directional control valve is sequentially connected to by outlet pipe with the gas control check valve.
Specifically, preferably, the clamping assembly includes: the thrust being slideably sleeved on the major diameter tube body
Ring, and the slips slided on the thrust ring by slide key；
The end of the thrust ring and the end of first cartridge offset；
The platen is connect with the slips, and the slips slided on the thrust ring after be clamped on it is described wait block
On the inner wall of pipeline.
Technical solution provided in an embodiment of the present invention has the benefit that
Plugging device provided in an embodiment of the present invention, by the way that elastic seal assembly, clamping assembly, platen, driving group is arranged
Part, and it is axially moved driving assembly driving platen, and then drive clamping assembly to be axially moved, and by clamping assembly in axial direction
Elastic seal assembly is squeezed, makes elastic seal assembly that elastic deformation occur, the welding on pipeline is not needed and blocks threeway
The closure treated and block pipeline can be realized, avoid after dimension repairs operation, stay in the closure threeway upper end on pipeline
The blind plate of mouth is damaged, or fails because long-time uses, to cause oil and gas leakage, generates security risk.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the diagrammatic cross-section of plugging device provided in an embodiment of the present invention；
Fig. 2 is the partial sectional schematic view of plugging device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of plugging device provided in an embodiment of the present invention.
Appended drawing reference respectively indicates:
1 pressure cylinder,
101 chassis,
102 major diameter tube bodies,
1021 pressure testing channels,
103 path tube bodies,
2 elastic seal assemblies,
201 first cartridges,
202 second cartridges,
3 clamping assemblies,
301 thrust rings,
302 slide keys,
303 slips,
4 platens,
5 driving assemblies,
501 glands,
502 pistons,
5021 piston rods,
50211 first cross liquid mouth,
50212 second cross liquid mouth,
5022 piston bodies,
6 springs,
7 hydraulic systems,
701 first hydraulic locks,
702 second hydraulic locks,
703 first three position four-way directional control valves,
704 fuel tanks,
705 hydraulic pumps,
706 first hydraulic lines,
707 second hydraulic lines,
708 third hydraulic control one-way valves,
709 overflow valves,
710 relief valves,
711 filters,
712 third hydraulic lines,
713 the 4th hydraulic lines,
714 first pressure sensors,
715 second pressure sensors,
8 control mechanisms,
9 spherical pigs,
10 gas pressure testing systems,
1001 gas control check valves,
1002 second three position four-way directional control valves,
1003 gas tanks,
1004 third pressure sensors,
11 isolation rings,
1101 ventholes,
12 admission lines,
13 outlet pipes,
14 leather cups,
15 support wheels,
16 I shape sliding blocks,
17 circle shape springs.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Plugging device provided in an embodiment of the present invention is sent to wait block it should be noted that can use receiving ball tube
Predetermined block-up position in pipeline.Also, " pipeline to be blocked " being mentioned below may be: the pipe of pipeline side to be blocked
Line.
The embodiment of the invention provides a kind of plugging devices, and as shown in Fig. 1, which includes: pressure cylinder 1, elasticity
Seal assembly 2, clamping assembly 3, platen 4, driving assembly 5.Pressure cylinder 1 is axially slidably arranged in wait block in pipeline.Elasticity
Seal assembly 2 is sleeved on pressure cylinder 1.Clamping assembly 3 is slideably sleeved on pressure cylinder 1, for along axial compression elastic packing
Component 2 is clamped on the inner wall of pipeline to be blocked to sealing pipeline to be blocked by being axially moved；Platen 4 and clamping group
Part 3 connects；Driving assembly 5 is connect with platen 4, for driving platen 4 to be axially moved.
The working principle of plugging device provided in an embodiment of the present invention is as described below:
When needing to block when blocking pipeline, pressure cylinder 1 is sent to predetermined block-up position using receiving ball tube, uses driving
Component 5 drives platen 4 to be axially moved wait block in pipeline, and then clamping assembly 3 is driven to be axially moved, and clamping assembly 3 is made to exist
While along axial compression elastic seal assembly 2, it is clamped on the inner wall of pipeline to be blocked.In the process, elastic packing group
Under the common extruding on clamping assembly 3 and chassis 101 elastic deformation occurs for part 2, until the outer wall of elastic seal assembly 2 with wait seal
The inner wall of plugging line offsets, and the sealing treated and block pipeline can be realized.It is to be understood that only need to be in pipeline two sides to be blocked
Pipeline in a plugging device is respectively set the closure treated and block pipeline can be realized, to carry out the dimension repairing of subsequent pipeline
Operation.
When needing certainly to unseal plugging device in pipeline wait block, only platen 4 need to be driven wait seal using driving assembly 5
Opposite direction is axially moved in plugging line.Specifically, clamping assembly can be made by being axially moved by 4 opposite direction of platen
3 also opposite direction is axially moved therewith, to make elastic seal assembly 2 in the extruding force for losing clamping assembly 3 and chassis 101
After restore to the original state, to realize plugging device wait block the deblocking in pipeline.
Plugging device provided in an embodiment of the present invention passes through setting elastic seal assembly 2, clamping assembly 3, platen 4, driving
Component 5, and make driving assembly 5 that platen 4 be driven to be axially moved, and then drive clamping assembly 3 to be axially moved, and pass through clamping assembly
3 and chassis 101 elastic seal assembly 2 is squeezed in axial direction, make elastic seal assembly 2 occur elastic deformation, do not need
Welding, which blocks threeway, on pipeline can be realized the closure treated and block pipeline, avoids after dimension repairs operation, stays in pipe
The blind plate of closure threeway upper port on line is damaged, or fails because long-time uses, to cause oil and gas leakage, generates
Security risk.
Wherein, the structure of platen 4 can be a variety of, for example, it can be disk-shaped structure, square plate structure etc..
In order to improve the deblocking speed of the plugging device, as shown in attached drawing 1 and attached drawing 3, the plugging device further include: multiple
Spring 6.Multiple springs 6 are axially arranged between pressure cylinder 1 and platen 4, and the both ends of the spring 6 respectively with pressure cylinder 1 and platen 4
It offsets.Specifically, when plugging device carries out closure operation, platen 4 is moved along the direction where axial direction to elastic seal assembly 2
It is dynamic, at this point, spring 6 is constantly compacted.And when the plugging device needs to unseal, driving assembly 5 drives platen 4 to be reversed axis
It at this point, spring 6 restores to the original state under its own elastic reaction, while being that platen 4 provides motive force (i.e. spring 6 to movement
Restoring force).Also, in order to guarantee stability of the spring 6 between pressure cylinder 1 and platen 4, it can be arranged on the end face of platen 4
One end of spring 6 is arranged in the blind hole in multiple blind holes compatible with spring 6, and the end face of the other end and pressure cylinder 1 offsets.
In addition, spring 6 can also realize alone plugging device wait seal by the elastic force of its own when driving assembly 5 breaks down
Deblocking in plugging line.
In order to guarantee that plugging device wait block the deblocking effect in pipeline, sets 8-12 for the quantity of spring 6,
For example, the quantity of the spring 6 can be 9,10,11 etc..
In order to guarantee plugging device provided in an embodiment of the present invention wait block motion stabilization in pipeline, as shown in Fig. 1,
It can be set with leather cup 14 on pressure cylinder 1 and platen 4, and the outer wall of leather cup 14 and the inner wall of pipeline to be blocked is made to offset, alternatively,
Support wheel 15 is set on pressure cylinder 1 and platen 4, and the idler wheel outer wall of support wheel 15 and the inner wall of pipeline to be blocked is made to offset.Also,
It, can be by the material of leather cup 14 and support wheel 15 in order to which pipeline will not be worn when guaranteeing that leather cup 14 and support wheel 15 move in pipeline
Matter is set as the preferable polyurethane of elasticity.
It wherein, can be by leather cup 14 and pressure cylinder 1 and platen 4 in order to guarantee that leather cup 14 connect fastening with pressure cylinder 1 and platen 4
Using being bolted, specifically, it is provided with internal thread hole on pressure cylinder 1 and platen 4 respectively, is provided on leather cup 14 and pressure cylinder
1 internal thread hole opposite with the internal thread hole on platen 4 then respectively will pressure using bolt compatible with the internal thread hole
Cylinder 1 is connect with leather cup 14, platen 4 with leather cup 14.
In embodiments of the present invention, as shown in Fig. 1, which includes: chassis 101, is co-axially located at chassis 101 together
The major diameter tube body 102 and path tube body 103 of side.Wherein, multiple springs 6 are circumferentially uniformly distributed in major diameter tube body 102 and path
In ring cavity between tube body 103.Elastic seal assembly 2 is sleeved on major diameter tube body 102, and one end offsets with chassis 101.It can be with
Understand: since major diameter tube body 102 is different with the diameter of path tube body 103, major diameter tube body 102 and path tube body 103
Between be formed with annular chamber, spring 6 is then arranged in the annular chamber.
By setting chassis 101, major diameter tube body 102 and path tube body 103, and make 102 sets of major diameter tube body in path tube body
Outside 103, and multiple springs 6 are circumferentially in the uniformly distributed annular chamber between major diameter tube body 102 and path tube body 103, not only
Parking space is provided for multiple springs 6, and increases the elastic force between platen 4 and chassis 101, and then increase platen 4
The speed being axially moveable in plugging device deblocking.Also, by the way that elastic seal assembly 2 is sleeved on major diameter tube body 102,
And one end offsets with chassis 101, and matches with clamping assembly 3, has effectively achieved the extruding to elastic seal assembly 2, just
Elastic deformation occurs in elastic seal assembly 2.
In embodiments of the present invention, as shown in Fig. 1, driving assembly 5 includes: gland 501 and piston 502.Wherein, gland
501 are arranged in the end of path tube body 103, for sealing path tube body 103.Piston 502 includes: piston rod 5021 and piston body
5022.The piston rod 5021 of two sides is each passed through chassis 101, and connect after passing through gland 501 with platen 4.Piston body 5022
Dynamic sealing it is arranged in path tube body 103.In addition, the plugging device further includes the liquid for driving piston 502 to be axially moved
Pressure system 7 (referring to attached drawing 3).
By the way that gland 501 is arranged in the end of path tube body 103, the closure to path tube body 103 is realized, and then small
Enclosure space is formd in diameter tube body 103.By the way that orthogonal piston rod 5021 and piston body 5022 is arranged, and make two sides
Piston rod 5021 is each passed through chassis 101, and connect after passing through gland 501 with platen 4.5022 dynamic sealing of piston body it is arranged
In path tube body 103, two closed spaces are formd by piston body 5022 in path tube body 103.By the way that liquid is arranged
Pressure system 7 realizes the driving to piston 502, so that it drives platen 4 to be axially moved.
In addition, being respectively arranged with first connect with hydraulic system 7 on the piston rod 5021 of 5022 two sides of piston body crosses liquid
Mouthfuls 50211 and second cross liquid mouth 50212 (referring to attached drawing 1 and attached drawing 3), and first crosses liquid mouth 50211 and second and cross liquid mouth 50212
It is respectively positioned in path tube body 103.
Liquid mouth is crossed by the way that connect with hydraulic system 7 first is arranged on the piston rod 5021 of 5022 two sides of piston body
50211 and second cross liquid mouth 50212, allow hydraulic system 7 that hydraulic oil to be reached to two closings in path tube body 103 respectively
Space, and the direction of piston rod 5021 axially movable is controlled by the volume of hydraulic oil in two enclosure spaces of control, into
And drive platen 4, clamping assembly 3, elastic seal assembly 2 axially movable, it ensure that plugging device blocks operation and deblocking is made
Industry is gone on smoothly.
Wherein, chassis 101, gland 501, be provided with centre bore for passing through piston rod 5021 on platen 4, and in order to
Guarantee that gland 501 with path tube body 103 connect fastening, while easy to disassemble, the end of gland 501 and path tube body 103 can be with
It is attached by bolt, specifically, is provided with opposite internal thread hole on the end of gland 501 and path tube body 103, makes
Gland 501 is connect with path tube body 103 with bolt compatible with the internal thread hole.Also, in order to guarantee platen 4 with
The connection fastening of piston rod 5021, and it is easy to disassemble, platen 4 is threadedly coupled with piston rod 5021, specifically, in piston rod 5021
Outer wall on be provided with external screw thread, set internal thread hole compatible with the external screw thread for the centre bore on platen 4.
In order to improve the leakproofness between piston body 5022 and path tube body 103, in piston body 5022 and path tube body 103
Between be provided with multiple sealing rings.Specifically, multiple rings compatible with sealing ring are provided on the outer wall of piston body 5022
Shape seal groove, the sealing ring are sleeved in annular seal groove, and the outer wall of sealing ring and the inner wall of path tube body 103 offset.
In order to improve the leakproofness between piston rod 5021 and chassis 101, it is arranged between piston rod 5021 and chassis 101
There are multiple sealing rings.Specifically, multiple annular seal grooves, each sealing ring are provided on the inner wall of the centre bore on chassis 101
It is arranged in corresponding annular seal groove, and the inner wall of sealing ring and the outer wall of piston rod 5021 offset.
In order to be axially moved plugging device rapidly wait block in pipeline, and can in axial movement
The sundries such as silt, dirt in pipeline are cleared up, as shown in attached drawing 1 and attached drawing 3, the plugging device further include: spherical pig
9.The spherical pig 9 is connect with the piston rod 5021 for being pierced by chassis 101.
Wherein, spherical pig 9 is common for this field, and those skilled in the art can be obtained by commercially available, for example,
It can be the spherical pig that Chongqing Jun Zheng advanced composite material (ACM) Co., Ltd produces and sells.
In order to guarantee tightness that piston rod 5021 is connect with spherical pig 9, while convenient for spherical pig 9 wait block in pipeline
It rolls, piston rod 5021 is connect with spherical pig 9 by flexural pivot or using candan universal joint.
In embodiments of the present invention, as shown in attached drawing 1 and attached drawing 3, the plugging device further include: for detecting elastic packing
Component 2 and gas pressure testing system 10 wait block leakproofness between pipeline.
By the way that gas pressure testing system 10 is arranged, liquid mouth 50212 is crossed to small diameter tube crossing liquid mouth 50211 and second by first
Hydraulic oil is conveyed in body 103, control platen 4 is axially moved, while realizing the closure operation and deblocking operation of plugging device.Also
Can leakproofness after the completion of closure to elastic seal assembly 2 and wait block between pipeline detect, to avoid in pipeline
During dimension repairing, oil gas is leaked by plugging device, to generate security risk.
It is understood that at this point, hydraulic system 7 and gas pressure testing system 10 constitute control system 8 (referring to attached drawing
3)。
For the ease of hydraulic system 7 and gas pressure testing system 10 and plugging device provided in an embodiment of the present invention with cooperation
Industry, while conveniently being moved wait block in pipeline, hydraulic system 7 and gas pressure testing system 10 can be integrated in the same cylinder
It is interior.
As shown in Fig. 3, which includes: the first hydraulic lock 701, the second hydraulic lock 702, the first 3-position 4-way
Reversal valve 703, fuel tank 704, hydraulic pump 705.103 inner cavity of path tube body of 5022 side of piston body (can be understood as the first mistake
Liquid mouth 50211) by the first hydraulic line 706 and the first hydraulic lock 701, the first three position four-way directional control valve 703, hydraulic pump 705,
Fuel tank 704 is sequentially connected to.103 inner cavity of path tube body (can be understood as second and cross liquid mouth 50212) of 5022 other side of piston body
It is sequentially connected to by the second hydraulic line 707 with the second hydraulic lock 702, the first three position four-way directional control valve 703.Wherein, hydraulic pump
705 can be driven by motor.
When plugging device provided in an embodiment of the present invention carries out closure operation, taken out using hydraulic pump 705 from fuel tank 704
Hydraulic oil is taken, and the hydraulic oil is made sequentially to flow through the first three position four-way directional control valve 703, the first hydraulic lock 701, first liquid mouth excessively
Enter in small diameter tube body 103 after 50211, and then platen 4 is driven to be axially moved, and then clamping assembly 3 is driven to be axially moved, in turn
Elastic seal assembly 2 is squeezed by clamping assembly 3, completes to block operation.
When plugging device provided in an embodiment of the present invention carries out deblocking operation, taken out using hydraulic pump 705 from fuel tank 704
Hydraulic oil is taken, and the hydraulic oil is made sequentially to flow through the first three position four-way directional control valve 703, the second hydraulic lock 702, second liquid mouth excessively
Enter in small diameter tube body 103 after 50212, and then drive platen 4 along axial counter motion, and then drives clamping assembly 3 along axial direction
Counter motion, and then extruding of the de-chucking component 3 to elastic seal assembly 2 make elastic seal assembly 2 restore to the original state, and complete
Unseal operation.
By the first hydraulic lock 701 of setting and the second hydraulic lock 702, it ensure that the hydraulic oil in fuel tank 704 can only be by liquid
Press pump 705 flows in path tube body 103, without flowing backwards from path tube body 103, so that it is normal to influence plugging device
It blocks, deblocking operation.By the way that the first three position four-way directional control valve 703 is arranged, realizes hydraulic oil and flow to oil in path tube body 103
The switching on road, i.e., by using the first three position four-way directional control valve 703 can control hydraulic oil from first cross liquid mouth 50211 flow into it is small
In diameter tube body 103, or liquid mouth 50212 is crossed from second and is flowed into path tube body 103.
In addition, as shown in Fig. 3, the hydraulic system 7 further include: third hydraulic control one-way valve 708, overflow valve 709, relief valve
710, filter 711, third hydraulic line 712, the 4th hydraulic line 713.Wherein, the setting of third hydraulic control one-way valve 708 is the
On the first hydraulic line 706 between one three position four-way directional control valve 703 and hydraulic pump 705.Filter 711 is arranged in fuel tank 704
On the first hydraulic line 706 between hydraulic pump 705.The arrival end setting of third hydraulic line 712 crosses liquid mouth first
50211 and first the first hydraulic line 706 between hydraulic lock 701 on, outlet end is connected to fuel tank 704, and relief valve 710 is arranged
On the third hydraulic line 712.The arrival end of 4th hydraulic line 713 is arranged in hydraulic pump 705 and third hydraulic control one-way valve
On the first hydraulic line 706 between 708, outlet end is connected to fuel tank 704, and overflow valve 709 is arranged in the 4th hydraulic line
On 713.
By the way that third hydraulic control one-way valve 708 is arranged, avoids the hydraulic oil being discharged from hydraulic pump 705 and oil return occurs, guarantee
Plugging device successfully can be blocked and be unsealed operation.It is hydraulic by first between fuel tank 704 and hydraulic pump 705
Filter 711 is set on pipeline 706, avoids the impurity in fuel tank 704 in hydraulic oil and is discharged into hydraulic pump 705, to cause liquid
705 blocking of press pump, influences the normal work of hydraulic pump 705.By the way that overflow valve 709 is arranged on the 4th hydraulic line 713, work as liquid
When the hydraulic fluid pressure that press pump 705 is discharged is excessively high, overflow valve 709 is automatically turned on, and makes the hydraulic oil from 713 row of the 4th hydraulic line
To fuel tank 704；After the pressure recovery of the hydraulic oil is normal, overflow valve 709 is automatically closed.
If plugging device when carrying out deblocking operation, hydraulic pump 705, third hydraulic control one-way valve 708, filter 711 or
First three position four-way directional control valve 703 breaks down, then liquid can not be discharged into path tube body 103 by hydraulic pump 705 at this time
Pressure oil, and then cause plugging device that can not unseal.At this point, in order to guarantee that plugging device can be unsealed smoothly, it can be into pipeline
Pressurization (specifically pressurizes to platen 4), at this point, the pressure rise of 4 side of platen, and then push piston rod 5021 is axial to move
It is dynamic.By the way that relief valve 710 is arranged on third hydraulic line 712, when 4 side pressure rise of platen causes and path tube body
When pressure in the third hydraulic line 712 of 103 connections is more than pressure set by relief valve 710, relief valve 710 is opened automatically
It opens, the hydraulic oil in path tube body 103 drains into fuel tank 704 by third hydraulic line 712, and the deblocking for completing plugging device is made
Industry.
Wherein, as shown in Fig. 3, the first hydraulic line 706 between the first hydraulic lock 701 and the first mistake liquid mouth 50211
On be provided with due to first pressure sensor 714；The second hydraulic tube between second hydraulic lock 702 and the second mistake liquid mouth 50212
Second pressure sensor 715 is provided on line 707.First pressure sensor 714 is used to measure the pipe in the first hydraulic line 706
Road pressure, the second hydraulic line 707 are used to measure the pipeline pressure in the second hydraulic line 707.
In embodiments of the present invention, as shown in Fig. 1, plugging device further include: be slideably sleeved on major diameter tube body 102
On isolation ring 11, be disposed radially multiple ventholes 1101.Elastic seal assembly 2 includes: the first cartridge 201 and
Two cartridges 202.Clamping assembly 3, the first cartridge 201, isolation ring 11, the second cartridge 202, chassis 101 are sequentially
It offsets.Pressure testing channel 1021 is provided on major diameter tube body 102, the one end in pressure testing channel 1021 is connect with gas pressure testing system 10,
The inner wall of the other end and isolation ring 11 offsets, and when elastic seal assembly 2 will be sealed wait block pipeline, the first cartridge
201 and second cartridge 202 be extruded, isolation ring 11 slides on major diameter tube body 102, venthole 1101 and pressure testing channel
1021 connections.
After plugging device is completed to treat the closure for blocking pipeline, at the first cartridge 201 and the second cartridge 202
In squeezed state, venthole 1101 is connected to pressure testing channel 1021, and gas pressure testing system 10 is discharged into pressure testing channel 1021
Gas, and so that the gas is entered pipeline to be blocked, the first cartridge 201, the second cartridge 202, isolation ring 11 and formed
Enclosure space.At this point, may determine that the enclosure space has No leakage by gas pressure testing system 10, and then detect first
Cartridge 201 and the second cartridge 202 and wait block the leakproofness between pipeline, guarantee the smooth of pipeline dimension repairing work
It carries out.By keeping clamping assembly 3, the first cartridge 201, isolation ring 11, the second cartridge 202, outer ring limited step suitable
It is secondary to offset, it ensure that clamping assembly 3 can impart power to the first cartridge 201 after the driving force for receiving platen 4
With the second cartridge 202, elastic deformation occurs convenient for the first cartridge 201 and the second cartridge 202.
Wherein, the quantity of venthole 1101 is 4-8, for example, the quantity can be 4,5,6 etc..
In order to make the first cartridge 201 and the second cartridge 202 after being squeezed can rapid deformation, improve envelope
The closure operating efficiency of block apparatus, by the thickness of the first cartridge 201 and the second cartridge 202 be set as ecto-entad by
It is decrescence small, ecto-entad, which is set, by the thickness of isolation ring 11 is gradually increased, the first cartridge 201 and the second cartridge
202 are adapted with the structure of isolation ring 11.At this point it is possible to by the section shape of the first cartridge 201 and the second cartridge 202
Shape is interpreted as isosceles trapezoid, and it is 10 ° -20 ° that two waists of the isosceles trapezoid, which are formed by angle, for example, the angle can
Think 15 °, 16 ° etc..
In order to further increase the deformation velocity of the first cartridge 201 and the second cartridge 202 after being squeezed,
And can quickly restore to the original state both after removing extruding force, in the outside of the first cartridge 201 and the second cartridge 202
Chamfering is provided on wall, specifically, which can be fillet.
Wherein, the material of the first cartridge 201 and the second cartridge 202 can be a variety of, for example, its material
It can be rubber, polyurethane etc..Also, the shore hardness of the first cartridge 201 and the second cartridge 202 is 68-75 degree,
For example, the shore hardness of the two can be 70 degree, 71 degree etc..
Further, as shown in Fig. 3, which includes: by admission line 12 and pressure testing channel
Gas control check valve 1001 that 1021 one end is sequentially connected to, the second three position four-way directional control valve 1002, gas tank 1003, and setting
The third pressure sensor 1004 on admission line 12 between pressure testing channel 1021 and gas control check valve 1001.Outlet pipe
13 are sequentially connected to the second three position four-way directional control valve 1002 with gas control check valve 1001.
After plugging device is completed to treat the closure for blocking pipeline, nitrogen is discharged into admission line 12 by gas tank 1003
Gas, be discharged into after so that the nitrogen is sequentially flowed through the second three position four-way directional control valve 1002, gas control check valve 1001, pressure testing channel 1021 to
It blocks pipeline, the first cartridge 201, the second cartridge 202, isolation ring 11 and is formed by enclosure space, pass through third pressure
Force snesor 1004 can judge that the enclosure space has No leakage, and then detect the first cartridge 201 and the second sealing
Packing element 202 and wait block the leakproofness between pipeline, guarantees going on smoothly for pipeline dimension repairing work.
In embodiments of the present invention, as shown in Fig. 1, clamping assembly 3 includes: slideably to be sleeved on major diameter tube body 102
On thrust ring 301, and the slips 303 slided on thrust ring 301 by slide key 302.The end of thrust ring 301 and the
The end of one cartridge 201 offsets.Platen 4 is connect with slips 303, and slips 303 slided on thrust ring 301 after be clamped on
On the inner wall of pipeline to be blocked.
When needing to block when blocking pipeline, liquid mouth 50211 is crossed to path tube body 103 by first using hydraulic pump 705
It is inside pumped into hydraulic oil, and then platen 4 is driven to be axially moved, pushes slips 303 to slide on thrust ring 301, in the process, pushes away
Dynamic slips 303 under the thrust operation of platen 4 also axially movable, to squeeze the first cartridge 201 and the second cartridge
202, until the inner wall of the outer wall and pipeline to be blocked of the first cartridge 201 and the second cartridge 202 fits closely, this
When, slips 303 is clamped on the inner wall of pipeline to be blocked.It, only need to be logical using hydraulic pump 705 when needing to unseal when blocking pipeline
It crosses the second liquid mouth 50212 excessively and is pumped into hydraulic oil into path tube body 103, so that platen 4 is carried out reversed axial movement, and then make card
Watt 303 unfreezings.
Wherein, slide key 302 is arranged on the lateral wall of thrust ring 301.It is provided on thrust ring 301 and slips 303
Sliding groove compatible with slide key 302, slide key 302 can be fixed by screws in the sliding groove on thrust ring 301.It is sliding
The shape of dynamic key 302 can be a variety of, for example, it can be strip, trapezoidal etc..
The quantity of slips 303 can be 8-12, for example, it can be 9,10,11 etc., in order into one
Step improves its clamping effect on pipeline inner wall to be blocked, and multiple slips 303 are circumferentially evenly arranged.
The arc-shaped plate body structure of slips 303, lateral wall is laid with multiple jagged slip inserts along axial direction, in order to improve
Slips 303 can set 30 ° -60 ° for the angle of slip insert and arc plate axis wait block the clamping effect on pipeline,
For example, which can be 55 °, 60 ° etc..It, can be in multiple slips also, in order to improve the unfreezing speed of slips 303
Multiple circle shape springs 17 are set on 303 outer wall (referring to attached drawing 2).Specifically, it is provided on the outer wall of slips 303 more
It is a for accommodating the groove of circle shape spring 17, when installation, by 17 sets of circle shape spring in multiple grooves.Work as slips
303 are clamped on when on the inner wall for blocking pipeline, and circle shape spring 17 is in tensional state；When slips 303 is from pipeline to be blocked
Inner wall on unfreezing when, circle shape spring 17 restores to the original state under the elastic reaction of itself, and then improves the axial of slips 303 and move
Dynamic speed, completes unfreezing.
It is clamped on for the ease of slips 303 on the inner wall of pipeline to be blocked, while improving slips 303 and thrust ring 301
Fiting effect can set the face opposite with thrust ring 301 of slips 303 on inclined-plane, the i.e. outer diameter of thrust ring 301 from front to back
It is gradually increased, the internal diameter of slips 303 is gradually reduced from front to back, and thrust ring 301 is adapted with slips 303, " forward and backward " herein
It is intended merely to indicate that the outer diameter of the two or internal diameter change direction are different.
In addition, in order to guarantee that slips 303 can be with platen 4 axially movable, while will not influence multiple slips 303 in diameter
Upward variation.Opposite T-slot is provided in the end of platen 4 and slips 303, on the T-slot and slips 303 on platen 4
T-slot be formed with I shape slot after alignment, and be provided with matched I shape sliding block 16 (referring to attached in the I shape slot
Fig. 2), when operation, I shape sliding block 16 is fixed in the T-slot of platen 4, while slips 303 is axially moved with platen 4, I
One end of shape sliding block 16 moves radially in the T-slot on slips 303.Wherein, I shape sliding block 16 is fixed by screws in platen
In T-slot on 4, the stability of platen 4 and slips 303 in operation process ensure that.
The foregoing is merely presently preferred embodiments of the present invention, the protection scope being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (11)
1. a kind of plugging device, which is characterized in that the plugging device includes: pressure cylinder (1), is axially slidably arranged in wait seal
In plugging line；
Elastic seal assembly (2) is sleeved on the pressure cylinder (1)；
Clamping assembly (3) is slideably sleeved on the pressure cylinder (1), for along the axial compression elastic seal assembly (2)
To sealing the pipeline to be blocked, while by being axially moved on the inner wall for being clamped on the pipeline to be blocked；
Platen (4) is connect with the clamping assembly (3)；
Driving assembly (5) is connect with the platen (4), for driving the platen (4) to be axially moved.
2. plugging device according to claim 1, which is characterized in that the plugging device further include: multiple springs (6),
Be axially arranged between the pressure cylinder (1) and the platen (4), and the both ends of the spring (6) respectively with the pressure cylinder (1)
It offsets with the platen (4).
3. plugging device according to claim 2, which is characterized in that the pressure cylinder (1) includes: chassis (101), coaxially sets
Set the major diameter tube body (102) and path tube body (103) ipsilateral in the chassis (101)；
Multiple springs (6) are circumferentially uniformly distributed between the major diameter tube body (102) and the path tube body (103)
In ring cavity；
The elastic seal assembly (2) is sleeved on the major diameter tube body (102), and one end offsets with the chassis (101).
4. plugging device according to claim 3, which is characterized in that the driving component (5) include: gland (501) and
Piston (502)；
The gland (501) is arranged in the end of the path tube body (103), for sealing the path tube body (103)；
The piston (502) includes: piston rod (5021) and piston body (5022)；
The piston rod (5021) of two sides is each passed through the chassis (101), and pass through the gland (501) afterwards with it is described
Platen (4) connection；
Piston body (5022) dynamic sealing it is arranged in the path tube body (103)；
Described device further includes the hydraulic system (7) for driving the piston (502) to be axially moved.
5. plugging device according to claim 4, which is characterized in that the plugging device further include: spherical pig (9)；
The spherical pig (9) connect with the piston rod (5021) for being pierced by the chassis (101).
6. plugging device according to claim 4, which is characterized in that the plugging device further include: described for detecting
Elastic seal assembly (2) and the gas pressure testing system (10) wait block leakproofness between pipeline.
7. plugging device according to claim 6, which is characterized in that the hydraulic system (7) and gas pressure testing system
System (10) is integrated in the same cylinder.
8. plugging device according to claim 7, which is characterized in that the hydraulic system (7) includes: the first hydraulic lock
(701), the second hydraulic lock (702), the first three position four-way directional control valve (703), fuel tank (704), hydraulic pump (705)；
Path tube body (103) inner cavity of piston body (5022) side passes through the first hydraulic line (706) and described the
One hydraulic lock (701), first three position four-way directional control valve (703), the hydraulic pump (705), the fuel tank (704) sequentially connect
It is logical；
Path tube body (103) inner cavity of piston body (5022) other side by the second hydraulic line (707) with it is described
Second hydraulic lock (702), first three position four-way directional control valve (703) are sequentially connected to.
9. plugging device according to claim 8, which is characterized in that the plugging device further include: be slideably set with
Isolation ring (11) on the major diameter tube body (102), has been disposed radially multiple ventholes (1101)；
Elastic seal assembly (2) includes: the first cartridge (201) and the second cartridge (202)；
The clamping assembly (3), first cartridge (201), the isolation ring (11), second cartridge
(202), the chassis (101) sequentially offsets；
It is provided with pressure testing channel (1021) on the major diameter tube body (102), one end of the pressure testing channel (1021) and the gas
Body pressure testing system (10) connection, the other end and the inner wall of the isolation ring (11) offset；
When the elastic seal assembly (2) by described when blocking pipeline sealing, the venthole (1101) and the pressure testing are logical
Road (1021) connection.
10. plugging device according to claim 9, which is characterized in that the gas pressure testing system (10) include: by into
Feed channel (12) is changed with gas control check valve (1001), the second 3-position 4-way that one end of the pressure testing channel (1021) is sequentially connected to
To valve (1002), gas tank (1003), and setting the pressure testing channel (1021) and the gas control check valve (1001) it
Between the admission line (12) on third pressure sensor (1004)；
Second three position four-way directional control valve (1002) is sequentially connected to by outlet pipe (13) with the gas control check valve (1001).
11. plugging device according to claim 10, which is characterized in that the clamping assembly (3) includes: slideably to cover
Thrust ring (301) on the major diameter tube body (102), and it is sliding on the thrust ring (301) by slide key (302)
Dynamic slips (303)；
The end of the thrust ring (301) and the end of first cartridge (201) offset；
The platen (4) connect with the slips (303), and the slips (303) slided on the thrust ring (301) after block
Tightly on the inner wall of the pipeline to be blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119604.8A CN109780363A (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119604.8A CN109780363A (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780363A true CN109780363A (en) | 2019-05-21 |
Family
ID=66493328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711119604.8A Pending CN109780363A (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622989A (en) * | 2021-09-22 | 2021-11-09 | 华北科技学院(中国煤矿安全技术培训中心) | Hole sealing device that adoption was taken out to intelligence gas |
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| US4875615A (en) * | 1989-03-06 | 1989-10-24 | Interprovincial Pipe Line Company | Vapor plug for temporarily sealing or plugging a pipeline |
| US20050241710A1 (en) * | 2002-02-08 | 2005-11-03 | Ciaran Early | Apparatus for pipeline isolation |
| US20070107790A1 (en) * | 2003-12-15 | 2007-05-17 | Harald Syse | Control system for hydraulic cylinder, plug with a hydraulic cylinder and methods for setting and releasing a plug |
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| CN202452027U (en) * | 2011-12-23 | 2012-09-26 | 中国石油大学(北京) | Near pipe end plugging tool |
| EP2816341A1 (en) * | 2013-06-23 | 2014-12-24 | STATS (UK) Limited | Method and assembly for pipe pressure testing |
| CN107060686A (en) * | 2017-03-18 | 2017-08-18 | 中国海洋石油总公司 | Plugging device in Hai Guanguan |
| CN207569432U (en) * | 2017-11-14 | 2018-07-03 | 中国石油天然气集团公司 | A kind of plugging device |
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2017
- 2017-11-14 CN CN201711119604.8A patent/CN109780363A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875615A (en) * | 1989-03-06 | 1989-10-24 | Interprovincial Pipe Line Company | Vapor plug for temporarily sealing or plugging a pipeline |
| US20050241710A1 (en) * | 2002-02-08 | 2005-11-03 | Ciaran Early | Apparatus for pipeline isolation |
| US20070107790A1 (en) * | 2003-12-15 | 2007-05-17 | Harald Syse | Control system for hydraulic cylinder, plug with a hydraulic cylinder and methods for setting and releasing a plug |
| CN101387365A (en) * | 2008-10-28 | 2009-03-18 | 张杰城 | Pipe end opening blockage |
| CN202452027U (en) * | 2011-12-23 | 2012-09-26 | 中国石油大学(北京) | Near pipe end plugging tool |
| EP2816341A1 (en) * | 2013-06-23 | 2014-12-24 | STATS (UK) Limited | Method and assembly for pipe pressure testing |
| CN107060686A (en) * | 2017-03-18 | 2017-08-18 | 中国海洋石油总公司 | Plugging device in Hai Guanguan |
| CN207569432U (en) * | 2017-11-14 | 2018-07-03 | 中国石油天然气集团公司 | A kind of plugging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622989A (en) * | 2021-09-22 | 2021-11-09 | 华北科技学院(中国煤矿安全技术培训中心) | Hole sealing device that adoption was taken out to intelligence gas |
| CN113622989B (en) * | 2021-09-22 | 2024-03-19 | 华北科技学院(中国煤矿安全技术培训中心) | Hole sealing device for intelligent gas extraction |
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