CN208487335U - Pipe pressurized closure double leather cup block head - Google Patents
Pipe pressurized closure double leather cup block head Download PDFInfo
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- CN208487335U CN208487335U CN201821127356.1U CN201821127356U CN208487335U CN 208487335 U CN208487335 U CN 208487335U CN 201821127356 U CN201821127356 U CN 201821127356U CN 208487335 U CN208487335 U CN 208487335U
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- leather cup
- oil cylinder
- steering arm
- ring
- plugging
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Abstract
Pipe pressurized closure double leather cup block head, steering arm outer end is provided with leather cup control oil circuit interface and the ring that leaks hunting leaks hunting interface, steering arm is connected by screw to leather cup apron plate, the piston rod of leather cup control oil cylinder is connect by nut with leather cup apron plate, oil cylinder controls oil circuit and is controlled on oil circuit interface by the leather cup that hydraulic fitting is connected to steering arm outer end, leather cup controls oil circuit interface and is connected on the ram control valve blocked outside connector by hydraulic fitting and hydraulic tube, two plugging leather cups are placed on leather cup apron plate and centre is separated by the ring that leaks hunting, the ring that leaks hunting leak hunting interface by hydraulic fitting and hydraulic tube be connected to block connector outside leaking hunting on control valve, leather cup rear backplate controls oil cylinder by leather cup and connect with leather cup apron plate.The utility model is sealed using twice plugging leather cup, the process for avoiding block butter wall or installation isolation capsule after not getting angry disconnected pipe, reasonable, simple process, high-efficient, the high advantage of security performance with design.
Description
Technical field
The utility model relates to pipe high-pressure blocking technology fields, and in particular to a kind of pipe pressurized closure double leather cup closure
Head.
Background technique
Oil and gas transportation pipeline in use, because of reasons such as itself or external factor, makes pipeline that the burn into of part occur
Deformation or damage, generates pipe safety hidden danger, and the prior art needs welded pipe line to block when hidden danger section is repaired or replaced
Pipe fitting, DN50 balance hole and relieving device (can also do relieving device with 50 balance holes) pipe fitting install exclusive clamps plate valve, mounting opening machine
Aperture, installation plugging device carry out closure operation by block head, and prior art block head all needs to block operation to hidden danger section direction,
Medium in hidden danger section is isolated with connector is blocked, and after blocking partition hidden danger segment pipe, need to be arranged in hidden danger section individual
At relieving device pipe fitting or by the medium in emptying hidden danger segment pipe at 50 balance pipe fittings, after emptying, test blocks tight
Property, after test passes, then hidden danger segment pipe cut off by cutting equipment of not getting angry, to improve even head welding replacement of finally getting angry
New pipeline need to build butter wall or welded airbag hole pipe fitting in pipeline, place isolation capsule after needing aperture.Existing closure operation
Technology, the pipe fitting of welding and the quantity of aperture are more, affect the integrality of pipeline, and increased aperture pipe fitting can all become pipeline and transport
Hidden danger point is leaked in battalion.Get angry before even head operation, the butter wall temporarily puzzled not only polluted the medium in pipeline, but also excessive
Butter wall also have blocking pipeline hidden danger.Existing plugging technology, block complete test tightness when, by being situated between in pipeline
Matter, environment temperature, closure distance and pipe diameter size are very big on testing time and test result influence, if test inaccuracy, directly
Connect result in the later period get angry even head operation when, it may occur that kindling or explosion etc. serious accident, and test if it find that leakage,
Can not explicitly judge be which end block head leakage, can only all propose to block again, then proceed to test densification
Property, until qualified.Get angry after connecting new pipeline operation, releases and block, but due to the block head in-line of the prior art
Unilateral side is pressurized, and can not propose, the blow valve on pipe fitting connection closure connector need to be balanced with DN50, makes the medium flow field in former pipeline
Enter into the pipeline newly connected, finally make the pressure for blocking both sides of head consistent, just it is proposed that block head, releases and block.It is existing
Process is tedious for technology, and the time is long, low efficiency, and security risk is big.
Utility model content
The utility model provides a kind of pipe pressurized closure double leather cup block head, has solved process of the existing technology
Cumbersome, low efficiency and the big problem of security risk.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of pipe pressurized double leather cup spherical shape block head, including support plate, steering shaft, steering arm, leather cup apron plate, leather cup
Control oil cylinder, oil cylinder control oil circuit, plugging leather cup, the ring that leaks hunting, leather cup rear backplate and directive wheel, the setting of support plate upper end and closure
The axis hole of device connection, support plate lower part are provided with leather cup control oil circuit interface by turning to axis connection steering arm, steering arm outer end
It leaks hunting interface with the ring that leaks hunting, steering arm is connected by screw to leather cup apron plate, O-ring is arranged between steering arm and leather cup apron plate
The piston rod of sealing, leather cup control oil cylinder is connect by nut with leather cup apron plate, and O is arranged between piston rod and leather cup apron plate
The sealing of type circle, oil cylinder control oil circuit and are controlled on oil circuit interface by the leather cup that hydraulic fitting is connected to steering arm outer end, leather cup
Control oil circuit interface by hydraulic fitting and hydraulic tube be connected to closure connector outside ram control valve on, and with it is hydraulic
Pumping plant connection, two plugging leather cups are placed on leather cup apron plate and centre is separated by the ring that leaks hunting, and are arranged on steering arm
The ring that the leaks hunting interface that leaks hunting also be connected to by hydraulic fitting and hydraulic tube and block leaking hunting on control valve outside connector, skin
It is the cylinder barrel that leather cup controls oil cylinder inside bowl rear backplate, there are three directive wheel, leather cup rear backplate passes through leather cup for external bottom end setting
Control oil cylinder is connect with leather cup apron plate.
Above-mentioned plugging leather cup and internal diameter of the pipeline have the gap 5mm or so, and when leather cup control oil cylinder is stretched out, block head passes through gap
Into pipeline, when leather cup controls oil cylinder and shrinks, plugging leather cup expansion is fitted closely with internal diameter of the pipeline, at this time leather cup apron plate and
Leather cup rear backplate is all fitted closely with plugging leather cup, just formd between cavity between the two and the ring that leaks hunting one it is unified close
Close space.
When the utility model operation, block-up position needs to weld a closure pipe fitting, and block head is fed through by plugging device
In pipeline, leather cup is set to control oil cylinder contraction extruding plugging leather cup by controlling hydraulic power unit at this time, plugging leather cup will be radial swollen
It is swollen, until closely fitting together with inner wall of the pipe, realizes and block.When testing tightness, need to will only leak hunting control valve opening,
Medium between the cavity being vented between leather cup apron plate and leather cup rear backplate and the ring that leaks hunting in confined space, observes the pressure of closure
Close property, since the space of emptying is small, so the testing time is short, test result is obvious, if there is leakage, can also explicitly know very much
Which end seal of road blocks up imprecision, does not also need to propose to block at this time, it is only necessary to control hydraulic power unit, leather cup control oil cylinder is continued to receive
Contracting continues to squeeze plugging leather cup, plugging leather cup is made radially to continue to expand, until sealing is tight, simplifies operation, improve work
Efficiency.Butter wall or installation isolation capsule are built due to using twice plugging leather cup to seal, after the disconnected pipe that also avoids not getting angry
Process simplifies operation, improves work efficiency, and also avoids the pollution to pipeline internal medium, the sealing of second plugging leather cup
On sealing intensity also it is excellent in butter wall or isolation capsule, improve the safety for welding of getting angry.After tightness test passes, put
Medium in empty hidden danger section, since the block head of the utility model is to block operation backwards to hidden danger section, the medium in hidden danger section is
It is communicated with connector is blocked, only need to be vented the medium in hidden danger segment pipe by the blow valve blocked on connector, be not required to
Individually to weld emptying pipe fitting.After connecting new pipeline qualification, closure need to be released, the pressure for blocking both sides of head is also required to pressure and puts down
Weighing apparatus only need to be by leather cup since the leather cup size on the utility model block head is to control oil cylinder by built-in leather cup to control
Control oil cylinder restores to original state, and the medium in former pipeline can be flowed to by the gap of plugging leather cup and pipeline newly to be connected
In the pipeline connect, pressure balance is realized, release and block, do not need individually to weld DN50 balance pipe fitting.The utility model only needs
A closure pipe fitting is welded, the quantity of pipe leakage point is reduced, improves pipeline integrity requirement.
The utility model using twice plugging leather cup seal, it is only necessary to weld a closure pipe fitting, avoid do not get angry it is disconnected
The process of block butter wall or installation isolation capsule, simplifies operation, improves work efficiency after pipe, has and designs reasonable, technique letter
Single, the operating time is short, high-efficient, the high advantage of security performance.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the plugging technology schematic diagram of the utility model.
1 support plate, 2 steering shafts, 3 steering arms, 4 leather cup apron plates, 5 leather cups control oil cylinder, 6 oil cylinders control oil circuit, 7 in figure
Plugging leather cup, 8 leak hunting ring, 9 leather cup rear backplates, 10 directive wheels, 11 leather cups control oil circuit interface, 12 rings that leak hunting leak hunting interface, 13
Nut, 14 closure connectors, 15 ram control valves, 16 are leaked hunting control valve, 17 blow valves, 18 plugging devices.
Specific embodiment
As depicted in figs. 1 and 2, a kind of pipe pressurized double leather cup spherical shape block head, including support plate 1, steering shaft 2, steering
Arm 3, leather cup apron plate 4, leather cup control oil cylinder 5, oil cylinder control oil circuit 6, plugging leather cup 7, the ring 8 that leaks hunting, leather cup rear backplate 9 and lead
It is formed to wheel 10.Wherein 1 upper end of support plate is provided with the axis hole connecting with plugging device 18, and 1 lower part of support plate is connected by steering shaft 2
Connect steering arm 3,3 outer end of steering arm is provided with leather cup control oil circuit interface 11 and the ring that leaks hunting leaks hunting interface 12, steering arm 3 passes through spiral shell
Nail connection leather cup apron plate 4, is provided with O-ring sealing between steering arm 3 and leather cup apron plate 4, leather cup controls the piston of oil cylinder 5
Bar is connect by nut 13 with leather cup apron plate 4, and O-ring sealing, oil cylinder control are provided between piston rod and leather cup apron plate 4
Oil circuit 6 is controlled on oil circuit interface 11 by the leather cup that hydraulic fitting is connected to 3 outer end of steering arm, and leather cup controls oil circuit interface 11
It is connected to by hydraulic fitting and hydraulic tube on the ram control valve 15 for blocking 14 outside of connector, and connected with hydraulic power unit
It connects, is separated, be both placed on leather cup apron plate 4 by the ring 8 that leaks hunting among two plugging leather cups 7, the survey on steering arm 3 is set
The leakage ring interface 12 that leaks hunting also is connected to by hydraulic fitting and hydraulic tube and blocks the leaking hunting on control valve 16 of 14 outside of connector,
The cylinder barrel of oil cylinder 5 is controlled inside leather cup rear backplate 9 for leather cup, there are three directive wheel 10, leather cup rear backplate 9 is logical for external bottom end setting
Leather cup control oil cylinder 5 is crossed to connect with leather cup apron plate 4, when leather cup controls 5 extended state of oil cylinder, plugging leather cup 7 and internal diameter of the pipeline
There is the gap 5mm or so, enters pipeline convenient for block head, when leather cup controls the contraction of oil cylinder 5, plugging leather cup 7 expands, with internal diameter of the pipeline
It fits closely, leather cup apron plate 4 and leather cup rear backplate 9 are all fitted closely with plugging leather cup 9 at this time, cavity and survey between the two
A unified confined space is just formd between leakage ring 8.
When the utility model operation, block-up position needs to weld a closure pipe fitting, and block head is sent by plugging device 18
To pipeline, leather cup is set to control the contraction extruding plugging leather cup 7 of oil cylinder 5 by controlling hydraulic power unit at this time, plugging leather cup 7 will diameter
To expansion, until closely fitting together with inner wall of the pipe, realizes and block.When testing tightness, need to will only leak hunting control valve
16 open, and the medium between the cavity being vented between leather cup apron plate 4 and leather cup rear backplate 9 and the ring 8 that leaks hunting in confined space is seen
The densification for examining closure, since the space of emptying is small, so the testing time is short, test result is obvious, can also be with if there is leakage
Explicitly know that very much which end seal blocks up imprecision, does not also need to propose to block at this time, it is only necessary to control hydraulic power unit, leather cup is controlled
Oil cylinder 5 continues to shrink, and continues to squeeze plugging leather cup 7, plugging leather cup 7 is made radially to continue to expand, until sealing is tight, simplify behaviour
Make, improves work efficiency.Due to using twice plugging leather cup 7 to seal, butter wall is built after the disconnected pipe that also avoids not getting angry
Or the process of installation isolation capsule, operation is simplified, is improved work efficiency, also avoids the pollution to pipeline internal medium, second
Road plugging leather cup 7 be sealed on sealing intensity also it is excellent in butter wall or isolation capsule, improve the safety for welding of getting angry.Tightly
Property test passes after, be vented hidden danger section in medium, due to the block head of the utility model be backwards to hidden danger section block operation, it is hidden
Suffering from the medium in section is communicated with closure connector 14, need to only be passed through the blow valve 17 blocked on connector 14 and is vented hidden danger
Medium in segment pipe does not need individually to weld emptying pipe fitting.After connecting new pipeline qualification, closure need to be released, both sides of head is blocked
Pressure be also required to pressure balance, since the leather cup size on the utility model block head is to control oil cylinder by built-in leather cup
5 controls, leather cup need to only be controlled oil cylinder 5 restore medium to original state, in former pipeline can by plugging leather cup 7 with
The gap of pipeline flows in the pipeline newly connected, realizes pressure balance, releases and blocks, and does not need individually to weld balance pipe fitting,
The utility model only needs to weld a closure pipe fitting, reduces the quantity of pipe leakage point, improves pipeline integrity requirement.
Claims (2)
1. a kind of pipe pressurized closure double leather cup block head, it is characterized in that including being protected before support plate, steering shaft, steering arm, leather cup
Plate, leather cup control oil cylinder, oil cylinder control oil circuit, plugging leather cup, the ring that leaks hunting, leather cup rear backplate and directive wheel, support plate upper end are set
The axis hole connecting with plugging device is set, by turning to axis connection steering arm, steering arm outer end is provided with leather cup control for support plate lower part
Oil circuit interface and the ring that leaks hunting leak hunting interface, and steering arm is connected by screw to leather cup apron plate, between steering arm and leather cup apron plate
O-ring is arranged to seal, the piston rod of leather cup control oil cylinder is connect by nut with leather cup apron plate, piston rod and leather cup apron plate
Between setting O-ring seal, oil cylinder control oil circuit by hydraulic fitting be connected to steering arm outer end leather cup control oil circuit connect
On mouth, leather cup controls oil circuit interface and is connected to the ram control valve blocked outside connector by hydraulic fitting and hydraulic tube
On, and connect with hydraulic power unit, two plugging leather cups are placed on leather cup apron plate and centre is separated by the ring that leaks hunting, and are arranged
The ring that leaks hunting on the steering arm interface that leaks hunting also is connected to by hydraulic fitting and hydraulic tube and blocks leaking hunting outside connector
It is the cylinder barrel that leather cup controls oil cylinder on control valve, inside leather cup rear backplate, external bottom end setting is protected after leather cup there are three directive wheel
Plate controls oil cylinder by leather cup and connect with leather cup apron plate.
2. pipe pressurized closure double leather cup block head according to claim 1, it is characterized in that plugging leather cup and internal diameter of the pipeline
There is the gap 5mm or so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821127356.1U CN208487335U (en) | 2018-07-17 | 2018-07-17 | Pipe pressurized closure double leather cup block head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821127356.1U CN208487335U (en) | 2018-07-17 | 2018-07-17 | Pipe pressurized closure double leather cup block head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208487335U true CN208487335U (en) | 2019-02-12 |
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ID=65247242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821127356.1U Active CN208487335U (en) | 2018-07-17 | 2018-07-17 | Pipe pressurized closure double leather cup block head |
Country Status (1)
| Country | Link |
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| CN (1) | CN208487335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-07-17 CN CN201821127356.1U patent/CN208487335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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