CN207569432U - A kind of plugging device - Google Patents
A kind of plugging device Download PDFInfo
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- CN207569432U CN207569432U CN201721510709.1U CN201721510709U CN207569432U CN 207569432 U CN207569432 U CN 207569432U CN 201721510709 U CN201721510709 U CN 201721510709U CN 207569432 U CN207569432 U CN 207569432U
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Abstract
The utility model discloses a kind of plugging devices, belong to pipeline dimension repairing field.The plugging device includes：Pressure cylinder, elastic seal assembly, clamping assembly, platen, drive component.Pressure cylinder is axially slidably arranged in pipeline to be blocked.Elastic seal assembly is sleeved on pressure cylinder.Clamping assembly is slideably sleeved on pressure cylinder, for squeezing elastic seal assembly in an axial direction to sealing pipeline to be blocked, while be clamped on the inner wall of pipeline to be blocked by being axially moved；Platen is connect with clamping assembly；Drive component is connect with platen, for platen to be driven to be axially moved.Plugging device provided by the utility model is avoided after operation is repaired, and the blind plate for blocking threeway upper port is damaged or fails due to long-time uses, and so as to cause oil and gas leakage, generates security risk.
Description
Technical field
The utility model is related to pipeline dimension repairing field, more particularly to a kind of plugging devices.
Background technology
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, the pipeline to damage carry out dimension repairing when,
Respectively there are one bypass threeway, (pipeline to be blocked is one in operation pipeline for welding generally on the pipeline of pipeline both sides to be blocked
Point), pipeline of two upper ports for bypassing threeway respectively with pipeline both sides to be blocked connects, direction and the axial direction with closure pipeline
Direction is consistent.Now it is necessary to by after pipeline partition, mediator depletion is blocked, could be waited to seal to this between two bypass threeways
Plugging line such as is replaced, is repaired at the dimensions repairing work, it is seen then that setting is bypassed between threeway at two for separating pipeline to be blocked
Plugging device be very necessary.
The prior art is using plugging device as plugging device, to separate pipeline to be blocked.Specifically, in pipeline both sides to be blocked
Pipeline on respectively welding there are one block threeway, two block threeways be located at two bypass threeways between, 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 both sides to be blocked
Punching, makes the upper port of closure threeway be connected with the pipeline of pipeline to be blocked and pipeline both sides to be blocked.Then, by two closure
Device is separately mounted to the upper port of two closure threeways, to separate the company between pipeline to be blocked and pipeline both sides to be blocked pipeline
It is logical, pipeline dimension repairing operation can be carried out at this time.After treating pipeline dimension repairing operation, 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 closure for blocking threeway, prevent from leaking in oil gas transportational process.
Designer has found that the prior art 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 blocking
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.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of plugging device.Specific technical solution
It is as follows：
A kind of plugging device, the plugging device include：Pressure cylinder is axially slidably arranged in pipeline to be blocked；
Elastic seal assembly is sleeved on the pressure cylinder；
Clamping assembly is slideably sleeved on the pressure cylinder, for squeezing the elastic seal assembly in an axial direction to close
Pipeline to be blocked described in envelope, 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；
Drive component is connect with the platen, for the platen to be driven to be axially moved.
Specifically, preferably, the plugging device further includes：Multiple springs are axially arranged on the pressure cylinder and institute
Between stating platen, and the both ends of the spring offset respectively with the pressure cylinder and the platen.
Specifically, preferably, the pressure cylinder includes：Chassis, the major diameter tube body for being co-axially located at the chassis homonymy 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 gland is arranged on the end of the path tube body, for sealing the path tube body；
The piston includes：Piston body and piston rod；
The piston rod of both sides is each passed through the chassis and across being connect with the platen after the gland；
It is arranged in the small diameter tube body to the piston body dynamic sealing；
Described device further includes the hydraulic system for the piston to be driven to be axially moved.
Specifically, preferably, the plugging device further includes：Spherical pig；
The spherical pig is connect with being pierced by the piston rod on the chassis.
Specifically, preferably, the plugging device further includes：It waits to seal with described for detecting the elastic seal assembly
The gas pressure testing system of leakproofness between plugging line.
Specifically, preferably, the hydraulic system and the gas pressure testing system are integrated in same cylinder.
Specifically, preferably, the hydraulic system includes：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 sequentially connect；
The path tube cavity of the piston body opposite 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 connect.
Specifically, preferably, the plugging device further includes：The isolation being slideably sleeved on the major diameter tube body
Ring has been disposed radially multiple ventholes；
Elastic seal assembly includes：First cartridge and the second cartridge；
The clamping assembly, first cartridge, the shading ring, second cartridge, chassis sequentially phase
It supports；
Pressure testing channel is provided on the major diameter tube body, one end of the pressure testing channel connects with the gas pressure testing system
It connects, the inner wall of the other end and the shading ring offsets；
When the elastic seal assembly by described when pipeline sealing is blocked, the venthole and the pressure testing channel connect
It is logical.
Specifically, preferably, the gas pressure testing system includes：Pass through one end of admission line and the pressure testing channel
The gas control check valve that sequentially connects, the second three position four-way directional control valve, gas tank and it is arranged on the pressure testing channel and the gas
Control the third pressure sensor on the admission line between check valve；
Outlet pipe sequentially connects second three position four-way directional control valve 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 and described wait to block
On the inner wall of pipeline.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The plugging device that the utility model embodiment provides, by setting elastic seal assembly, clamping assembly, platen, drive
Dynamic component, and drive component driving platen is made to be axially moved, and then clamping assembly is driven to be axially moved, and exist by clamping assembly
It is axial that elastic seal assembly is squeezed, make elastic seal assembly that elastic deformation occur, do not need to weld closure on pipeline
The closure treated and block pipeline can be realized in threeway, avoids after dimension repairs operation, stays in the closure threeway on pipeline
The blind plate of upper port is damaged or fails due to long-time uses, and so as to cause oil and gas leakage, generates security risk.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the diagrammatic cross-section for the plugging device that the utility model embodiment provides；
Fig. 2 is the partial sectional schematic view for the plugging device that the utility model embodiment provides；
Fig. 3 is the structure diagram for the plugging device that the utility model embodiment provides.
Reference numeral represents respectively：
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 drive components,
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 shading 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
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
It is treated it should be noted that can be sent to the plugging device that the utility model embodiment provides using receiving ball tube
Block the predetermined block-up position in pipeline.Also, " pipeline to be blocked " being mentioned below may be：Pipeline side to be blocked
Pipeline.
The utility model embodiment provides a kind of plugging device, and as shown in Figure 1, which includes：Pressure cylinder 1,
Elastic seal assembly 2, clamping assembly 3, platen 4, drive component 5.Pressure cylinder 1 is axially slidably arranged in pipeline to be blocked.
Elastic seal assembly 2 is sleeved on pressure cylinder 1.Clamping assembly 3 is slideably sleeved on pressure cylinder 1, for squeezing elasticity in an axial direction
Seal assembly 2 is to sealing pipeline to be blocked, while be clamped on the inner wall of pipeline to be blocked by being axially moved；Platen 4 and card
Tight component 3 connects；Drive component 5 is connect with platen 4, for platen 4 to be driven to be axially moved.
The operation principle for the plugging device that the utility model embodiment provides is as described below：
When needing to block when pipeline is blocked, 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 in pipeline to be blocked, and then clamping assembly 3 is driven to be axially moved, and clamping assembly 3 is made to exist
While squeezing elastic seal assembly 2 in an axial direction, 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 is sealed with waiting
The inner wall of plugging line offsets, you can realizes the sealing treated and block pipeline.It is appreciated that：It only need to be in pipeline both sides to be blocked
Pipeline in set a plugging device that the closure treated and block pipeline can be realized respectively, to carry out the dimension repairing of subsequent pipeline
Operation.
When need by plugging device from wait block pipeline in unseal when, only need to utilize drive component 5 drive platen 4 wait to seal
Negative direction is axially moved in plugging line.Specifically, clamping assembly can be made by being axially moved by 4 negative direction of platen
3 also negative direction is axially moved therewith, so as to make elastic seal assembly 2 in the extruding force for losing clamping assembly 3 and chassis 101
After restore to the original state, so as to fulfill deblocking of the plugging device in pipeline to be blocked.
The utility model embodiment provide plugging device, by set elastic seal assembly 2, clamping assembly 3, platen 4,
Drive component 5, and make drive component 5 that platen 4 be driven to be axially moved, and then clamping assembly 3 is driven to be axially moved, and pass through clamping
Component 3 and chassis 101 squeeze elastic seal assembly 2 in axial direction, make elastic seal assembly 2 that elastic deformation occur, are not required to
Closure threeway is welded on pipeline, the closure treated and block pipeline can be realized, avoided after dimension repairs operation, stay
It is damaged in the blind plate of the closure threeway upper port on pipeline or fails due to long-time uses, so as to cause oil and gas leakage,
Generate security risk.
Wherein, the structure of platen 4 can be a variety of, for example, it can be disk-shaped structure, square platy structure etc..
In order to improve the deblocking speed of the plugging device, as shown in attached drawing 1 and attached drawing 3, which further includes：It is 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 moves in an axial direction to the direction where elastic seal assembly 2
It is dynamic, at this point, spring 6 is constantly compacted.And when the plugging device needs deblocking, drive component 5 drives platen 4 to be reversed axis
At this point, spring 6 restores to the original state under its own elastic reaction, while it is that platen 4 provides motive force (i.e. spring 6 to movement
Restoring force).Also, it in order to ensure stability of the spring 6 between pressure cylinder 1 and platen 4, can be set on the end face of platen 4
Multiple blind holes being adapted with spring 6 make one end of spring 6 be arranged in the blind hole, and the end face of the other end and pressure cylinder 1 offsets.
In addition, when drive component 5 breaks down, spring 6 can also realize that plugging device is being waited to seal alone by the elastic force of its own
Deblocking in plugging line.
In order to ensure deblocking effect of the plugging device in pipeline to be blocked, the quantity of spring 6 is set as 8-12,
For example, the quantity of the spring 6 can be 9,10,11 etc..
In order to ensure the plugging device of the utility model embodiment offer motion stabilization in pipeline to be blocked, such as attached drawing 1
It is shown, leather cup 14 can be set on pressure cylinder 1 and platen 4, and make the outer wall of leather cup 14 and the inner wall of pipeline to be blocked offset or
Person sets support wheel 15 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.
It, can be by leather cup 14 and support wheel also, in order to which pipeline will not be worn when ensureing that leather cup 14 and support wheel 15 move in pipeline
15 material 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 ensure that leather cup 14 connect fastening with pressure cylinder 1 and platen 4
Using being bolted, specifically, internal thread hole is provided 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 the bolt being adapted with the internal thread hole
Cylinder 1 is connect with leather cup 14, platen 4 with leather cup 14.
In the utility model embodiment, as shown in Figure 1, which includes：Chassis 101 is co-axially located at chassis
The major diameter tube body 102 of 101 homonymies and path tube body 103.Wherein, multiple springs 6 are circumferentially uniformly distributed in 102 He of major diameter tube body
In ring cavity between path tube body 103.Elastic seal assembly 2 is sleeved on major diameter tube body 102, and one end offsets with chassis 101.
It is appreciated that：Since major diameter tube body 102 is different with the diameter of path tube body 103, major diameter tube body 102 and small diameter tube
Annular chamber is formed between body 103, spring 6 is then arranged in the annular chamber.
By setting chassis 101, major diameter tube body 102 and path tube body 103, and major diameter tube body 102 is made to be sleeved on 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, and increase the elastic force between platen 4 and chassis 101, and then increase platen 4 for multiple springs 6
The speed being axially moveable when plugging device unseals.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 is matched with clamping assembly 3, has effectively achieved the extruding to elastic seal assembly 2, just
Elastic deformation occurs in elastic seal assembly 2.
In the utility model embodiment, as shown in Figure 1, drive component 5 includes：Gland 501 and piston 502.Wherein,
Gland 501 is arranged on the end of path tube body 103, for sealing path tube body 103.Piston 502 includes：Piston rod 5021 and work
Cock body 5022.The piston rod 5021 of both sides is each passed through chassis 101 and across being connect with platen 4 after gland 501.Piston body
It is arranged in path tube body 103 to 5022 dynamic sealings.In addition, the plugging device further includes that piston 502 is driven to be axially moved
Hydraulic system 7 (referring to attached drawing 3).
By the end set gland 501 in 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 setting orthogonal piston rod 5021 and piston body 5022, and make both sides
Piston rod 5021 is each passed through chassis 101 and across being connect with platen 4 after gland 501.Set to 5022 dynamic sealing of piston body
In path tube body 103, the space of two closings is formd by piston body 5022 in path tube body 103.By setting liquid
Pressure system 7 realizes the driving to piston 502, so that it drives platen 4 to be axially moved.
In addition, first connect with hydraulic system 7 is respectively arranged on the piston rod 5021 of 5022 both sides of piston body crosses liquid
The liquid mouth 50212 (referring to attached drawing 1 and attached drawing 3) excessively of mouth 50211 and second, and first crosses the liquid mouth 50212 excessively of liquid mouth 50211 and second
It is respectively positioned in path tube body 103.
Liquid mouth is crossed by setting connect with hydraulic system 7 first on the piston rod 5021 of 5022 both 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 controlling the volume of hydraulic oil in two enclosure spaces, 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 smoothed out.
Wherein, chassis 101, gland 501, be both provided with centre bore for passing through piston rod 5021 on platen 4, and in order to
Ensure that gland 501 connect fastening, while easy to disassemble with path tube body 103, 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 the bolt that the internal thread hole is adapted.Also, in order to ensure 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, the internal thread hole that the centre bore on platen 4 is set as being adapted with the external screw thread.
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 being adapted with sealing ring are provided on the outer wall of piston body 5022
Shape seal groove, the ring set is 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, set 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 which plugging device is made rapidly to be axially moved in pipeline to be blocked, and can in axial movement
The sundries such as silt, the dirt in pipeline are cleared up, as shown in attached drawing 1 and attached drawing 3, which further includes：Spherical pig
9.The spherical pig 9 is connect with being pierced by the piston rod 5021 on chassis 101.
Wherein, spherical pig 9 is common for this field, and those skilled in the art can be obtained by purchased in market, for example,
It can be the spherical pig that Chongqing Jun Zheng advanced composite material (ACM)s Co., Ltd produces and sells.
In order to ensure tightness that piston rod 5021 is connect with spherical pig 9, while convenient for spherical pig 9 in pipeline to be blocked
It rolls, piston rod 5021 is connect with spherical pig 9 by flexural pivot or using candan universal joint.
In the utility model embodiment, as shown in attached drawing 1 and attached drawing 3, which further includes：For detecting elasticity
The gas pressure testing system 10 of leakproofness between seal assembly 2 and pipeline to be blocked.
By setting gas pressure testing system 10, liquid mouth 50212 is crossed to small diameter tube crossing liquid mouth 50211 and second by first
Conveying hydraulic oil in body 103, control platen 4 are axially moved, while realizing the closure operation of plugging device and deblocking operation.Also
Leakproofness that can be after the completion of closure between elastic seal assembly 2 and pipeline to be blocked is detected, to avoid in pipeline
During dimension repairing, oil gas is leaked by plugging device, so as 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)。
Coordinate for the ease of hydraulic system 7 and gas pressure testing system 10 with the plugging device that the utility model embodiment provides
Operation, while conveniently moved in pipeline to be blocked, hydraulic system 7 and gas pressure testing system 10 can be integrated in same cylinder
In vivo.
As shown in Figure 3, which includes：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 sequentially connects.103 inner cavity of path tube body (can be understood as second and cross liquid mouth 50212) of 5022 opposite side of piston body
It is sequentially connected with the second hydraulic lock 702, the first three position four-way directional control valve 703 by the second hydraulic line 707.Wherein, hydraulic pump
705 can be driven by motor.
When the plugging device that the utility model embodiment provides carries out closure operation, using hydraulic pump 705 from fuel tank 704
Interior extraction hydraulic oil, 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 excessively
Enter in small diameter tube body 103 after mouth 50211, and then platen 4 is driven to be axially moved, and then clamping assembly 3 is driven to be axially moved, into
And elastic seal assembly 2 is squeezed by clamping assembly 3, it completes to block operation.
When the plugging device that the utility model embodiment provides carries out deblocking operation, using hydraulic pump 705 from fuel tank 704
Interior extraction hydraulic oil, 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 excessively
Enter in small diameter tube body 103 after mouth 50212, and then drive the counter motion in an axial direction of platen 4, and then drive clamping assembly 3 along axis
It runs back, and then extruding of the de-chucking component 3 to elastic seal assembly 2, elastic seal assembly 2 is made to restore to the original state, it is complete
Into deblocking operation.
By setting the first hydraulic lock 701 and the second hydraulic lock 702, it ensure that the hydraulic oil in fuel tank 704 can only be by liquid
Press pump 705 is flowed in path tube body 103, normal so as to influence plugging device without being flow backwards from path tube body 103
It blocks, deblocking operation.By setting the first three position four-way directional control valve 703, realize 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 to flow into path tube body 103.
In addition, as shown in Figure 3, which further includes：Third hydraulic control one-way valve 708, overflow valve 709, relief valve
710th, filter 711, third hydraulic line 712, the 4th hydraulic line 713.Wherein, third hydraulic control one-way valve 708 is arranged on
On the first hydraulic line 706 between one three position four-way directional control valve 703 and hydraulic pump 705.Filter 711 is arranged on fuel tank 704
On the first hydraulic line 706 between hydraulic pump 705.The arrival end of third hydraulic line 712 is arranged on first and crosses liquid mouth
50211 and first the first hydraulic line 706 between hydraulic lock 701 on, the port of export is connected with fuel tank 704, and relief valve 710 is set
On the third hydraulic line 712.The arrival end of 4th hydraulic line 713 is arranged on hydraulic pump 705 and third hydraulic control one-way valve
On the first hydraulic line 706 between 708, the port of export is connected with fuel tank 704, and overflow valve 709 is arranged on the 4th hydraulic line
On 713.
By setting third hydraulic control one-way valve 708, avoid the hydraulic oil discharged from hydraulic pump 705 and oil return occurs, ensure
Plugging device successfully can be blocked and be unsealed operation.Pass through the first hydraulic pressure between fuel tank 704 and hydraulic pump 705
Filter 711 on pipeline 706 is set, the impurity in fuel tank 704 in hydraulic oil is avoided and is discharged into hydraulic pump 705, so as to cause liquid
705 blocking of press pump influences the normal work of hydraulic pump 705.By setting overflow valve 709 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 automatically turns 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 can not be discharged into liquid 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 ensure that plugging device can be unsealed smoothly, it can be into pipeline
Pressurization (being specifically to pressurize 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 setting relief valve 710 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 the 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 Figure 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 for the pipe in the first hydraulic line 706 of measurement
Road pressure, the second hydraulic line 707 is for the pipeline pressure in the second hydraulic line 707 of measurement.
In the utility model embodiment, as shown in Figure 1, plugging device further includes：Slideably it is sleeved on large-diameter pipe
Shading ring 11 on body 102 has been disposed radially multiple ventholes 1101.Elastic seal assembly 2 includes：First cartridge
201 and second cartridge 202.Clamping assembly 3, the first cartridge 201, shading ring 11, the second cartridge 202, chassis
101 sequentially offset.Pressure testing channel 1021, one end and the gas pressure testing system of pressure testing channel 1021 are provided on major diameter tube body 102
10 connections, the inner wall of the other end and shading ring 11 offset, and when elastic seal assembly 2 will be when pipeline sealing be blocked, first is close
201 and second cartridge 202 of sealing cylinder is extruded, and shading ring 11 slides on major diameter tube body 102, venthole 1101 and pressure testing
Channel 1021 connects.
After the closure for blocking pipeline is treated in plugging device completion, at the first cartridge 201 and the second cartridge 202
In squeezed state, venthole 1101 is connected with pressure testing channel 1021, and gas pressure testing system 10 is discharged into pressure testing channel 1021
Gas, and the gas is made to enter pipeline to be blocked, the first cartridge 201, the second cartridge 202, shading ring 11 and is formed
Enclosure space.At this point, it may determine that the enclosure space has No leakage, and then detects first by gas pressure testing system 10
Leakproofness between 201 and second cartridge 202 of cartridge and pipeline to be blocked ensures the smooth of pipeline dimension repairing work
It carries out.By making clamping assembly 3, the first cartridge 201, shading ring 11, the second cartridge 202, outer shroud 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, the thickness of shading ring 11 is set as ecto-entad and is gradually increased, the first cartridge 201 and the second cartridge
202 are adapted with the structure of shading ring 11.At this point it is possible to by the first cartridge 201 and the section shape of the second cartridge 202
Shape is interpreted as isosceles trapezoid, and the angle that two waists of the isosceles trapezoid are formed is 10 ° -20 °, for example, the angle can
Think 15 °, 16 ° etc..
In order to further improve 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 extruding force is removed, 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
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 Figure 3, which includes：Pass through admission line 12 and pressure testing channel
Gas control check valve 1001, the second three position four-way directional control valve 1002, gas tank 1003 and the setting that 1021 one end sequentially connects
The third pressure sensor 1004 on admission line 12 between pressure testing channel 1021 and gas control check valve 1001.Outlet pipe
13 sequentially connect the second three position four-way directional control valve 1002 with gas control check valve 1001.
After the closure for blocking pipeline is treated in plugging device completion, nitrogen is discharged into admission line 12 by gas tank 1003
Gas makes the nitrogen sequentially flow through to be discharged into after the second three position four-way directional control valve 1002, gas control check valve 1001, pressure testing channel 1021 and treat
The enclosure space that pipeline, the first cartridge 201, the second cartridge 202, shading ring 11 are formed is blocked, passes 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
Leakproofness between packing element 202 and pipeline to be blocked ensures being smoothed out for pipeline dimension repairing work.
In the utility model embodiment, as shown in Figure 1, clamping assembly 3 includes：Slideably it is sleeved on major diameter tube body
Thrust ring 301 on 102 and the slips 303 slided on thrust ring 301 by slide key 302.The end of thrust ring 301
It offsets with the end of the first cartridge 201.Platen 4 is connect with slips 303, and slips 303 slided on thrust ring 301 after block
Tightly on the inner wall of pipeline to be blocked.
When needing to block when pipeline is blocked, liquid mouth 50211 is crossed to path tube body 103 by first using hydraulic pump 705
Hydraulic oil is inside pumped into, and then platen 4 is driven to be axially moved, slips 303 is pushed to be slided on thrust ring 301, in the process, is pushed 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.When needing to unseal when pipeline is blocked, it need to only utilize hydraulic pump 705 logical
It crosses the second liquid mouth 50212 excessively and is pumped into hydraulic oil into path tube body 103, platen 4 is made to carry 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 both provided on thrust ring 301 and slips 303
The sliding groove being adapted 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.
303 arc-shaped plate body structure of slips, lateral wall is laid with multiple jagged slip inserts in an axial direction, in order to improve
The angle of slip insert and arc plate axis can be set as 30 ° -60 ° by clamping effect of the slips 303 on pipeline to be blocked,
For example, which can be 55 °, 60 ° etc..It also, can be in multiple slips for the unfreezing speed for improving 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, during installation, circle shape spring 17 is sleeved 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 improves slips 303 and thrust ring 301
The face opposite with thrust ring 301 of slips 303 can be set as inclined-plane, the i.e. outer diameter of thrust ring 301 from front to back by fiting effect
Gradually increase, the internal diameter of slips 303 are gradually reduced from front to back, and thrust ring 301 is adapted with slips 303, " forward and backward " herein
Outer diameter or the internal diameter change direction for being intended merely to represent the two are different.
In addition, in order to ensure that slips 303 can be with platen 4 axially movable, while does not interfere with multiple slips 303 in diameter
Upward variation.There is opposite T-slot in the end set of platen 4 and slips 303, on the T-slot and slips 303 on platen 4
T-slot be formed with I shape slots after alignment, and matched I shapes sliding block 16 is provided with (referring to attached in the I shape slots
Fig. 2), during operation, I shapes 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 shapes 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 above is only the preferred embodiment of the present invention, the protection domain being not intended to limit the utility model,
Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this reality
Within novel protection domain.
Claims (11)
1. a kind of plugging device, which is characterized in that the plugging device includes：Pressure cylinder (1), is axially slidably arranged on and waits to 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 squeezing the elastic seal assembly (2) in an axial direction
To pipeline to be blocked described in sealing, 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)；
Drive component (5) is connect with the platen (4), for the platen (4) to be driven to be axially moved.
2. plugging device according to claim 1, which is characterized in that the plugging device further includes：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) is coaxially set
It puts in the major diameter tube body (102) of the chassis (101) homonymy and path tube body (103)；
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) includes：Gland (501) and
Piston (502)；
The gland (501) is arranged on 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 both sides be each passed through the chassis (101) and across the gland (501) afterwards with it is described
Platen (4) connects；
It is arranged on to piston body (5022) dynamic sealing in the path tube body (103)；
Described device further includes the hydraulic system (7) for the piston (502) to be driven to be axially moved.
5. plugging device according to claim 4, which is characterized in that the plugging device further includes：Spherical pig (9)；
The spherical pig (9) connect with being pierced by the piston rod (5021) on the chassis (101).
6. plugging device according to claim 4, which is characterized in that the plugging device further includes：It is described for detecting
The gas pressure testing system (10) of leakproofness between elastic seal assembly (2) and the pipeline to be blocked.
7. plugging device according to claim 6, which is characterized in that the hydraulic system (7) and the gas pressure testing system
System (10) is integrated in same cylinder.
8. plugging device according to claim 7, which is characterized in that the hydraulic system (7) includes：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) opposite side by the second hydraulic line (707) with it is described
Second hydraulic lock (702), first three position four-way directional control valve (703) sequentially connect.
9. plugging device according to claim 8, which is characterized in that the plugging device further includes：Slideably it is set with
Shading ring (11) on the major diameter tube body (102), has been disposed radially multiple ventholes (1101)；
Elastic seal assembly (2) includes：First cartridge (201) and the second cartridge (202)；
The clamping assembly (3), first cartridge (201), the shading ring (11), second cartridge
(202), the chassis (101) sequentially offsets；
Pressure testing channel (1021), one end and the gas of the pressure testing channel (1021) are provided on the major diameter tube body (102)
Body pressure testing system (10) connects, and the other end and the inner wall of the shading ring (11) offset；
When the elastic seal assembly (2) by it is described wait block pipeline sealing when, the venthole (1101) is led to the pressure testing
Road (1021) connects.
10. plugging device according to claim 9, which is characterized in that the gas pressure testing system (10) includes：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) sequentially connects
To valve (1002), gas tank (1003) and be arranged on the pressure testing channel (1021) and the gas control check valve (1001) it
Between the admission line (12) on third pressure sensor (1004)；
Outlet pipe (13) sequentially connects second three position four-way directional control valve (1002) 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 cover
Thrust ring (301) on the major diameter tube body (102) and 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 |
|---|---|---|---|
| CN201721510709.1U CN207569432U (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510709.1U CN207569432U (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN207569432U true CN207569432U (en) | 2018-07-03 |
Family
ID=62694267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721510709.1U Active CN207569432U (en) | 2017-11-14 | 2017-11-14 | A kind of plugging device |
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| CN (1) | CN207569432U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737264A (en) * | 2019-03-07 | 2019-05-10 | 北华大学 | Robot is intelligently blocked in brake type pipeline |
| CN109780363A (en) * | 2017-11-14 | 2019-05-21 | 中国石油天然气集团公司 | A kind of plugging device |
| CN110608347A (en) * | 2019-09-27 | 2019-12-24 | 西安理工大学 | Conveying and positioning device, conveying method and positioning method for working body in pipeline |
| CN110726031A (en) * | 2018-07-17 | 2020-01-24 | 北京金石湾管道技术有限公司 | Double-packing-cup plugging head for pipeline under pressure plugging |
| CN111102426A (en) * | 2018-10-29 | 2020-05-05 | 北京金石湾管道技术有限公司 | Pipeline pressurized quick double-plugging air bag and use method thereof |
-
2017
- 2017-11-14 CN CN201721510709.1U patent/CN207569432U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780363A (en) * | 2017-11-14 | 2019-05-21 | 中国石油天然气集团公司 | A kind of plugging device |
| CN110726031A (en) * | 2018-07-17 | 2020-01-24 | 北京金石湾管道技术有限公司 | Double-packing-cup plugging head for pipeline under pressure plugging |
| CN111102426A (en) * | 2018-10-29 | 2020-05-05 | 北京金石湾管道技术有限公司 | Pipeline pressurized quick double-plugging air bag and use method thereof |
| CN109737264A (en) * | 2019-03-07 | 2019-05-10 | 北华大学 | Robot is intelligently blocked in brake type pipeline |
| CN109737264B (en) * | 2019-03-07 | 2023-08-18 | 北华大学 | Brake type intelligent plugging robot in pipeline |
| CN110608347A (en) * | 2019-09-27 | 2019-12-24 | 西安理工大学 | Conveying and positioning device, conveying method and positioning method for working body in pipeline |
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