CN204372443U - A kind of blanking plug for pipe leakage shutoff - Google Patents
A kind of blanking plug for pipe leakage shutoff Download PDFInfo
- Publication number
- CN204372443U CN204372443U CN201420819404.9U CN201420819404U CN204372443U CN 204372443 U CN204372443 U CN 204372443U CN 201420819404 U CN201420819404 U CN 201420819404U CN 204372443 U CN204372443 U CN 204372443U
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- CN
- China
- Prior art keywords
- connecting rod
- vertical connecting
- friction top
- female
- blanking plug
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of blanking plug for pipe leakage shutoff, it comprises the vertical connecting rod that underpart is major part taper, be sheathed on this vertical connecting rod underpart and the anticreep claw contacted by cone match, be sheathed on vertical connecting rod to spline and to be positioned at the friction top of this anticreep claw of pushing tow on the upside of this anticreep claw female, be bolted in vertical connecting rod and the locking nut abutted with the female upper-end surface of friction top, the blade tooth that anticreep claw is circumferentially provided with the comb teeth-shaped mated with vertical connecting rod tapered lower end portion tapering forms multi-clove type structure, the female sealing with base end face of friction top is docked, vertical connecting rod and the female inside lower end of friction top are tightly connected.Vertical connecting rod is embedded Leak hole, be sheathed on vertical connecting rod to the female spline of friction top, turn locking nut, anticreep claw is multi-clove type claw distending under the push-and-pull action of vertical connecting rod and friction top mother, blanking plug is lock onto Leak hole, and then solving the pipe leakage problem of small space, structure is simpler, operation is easier, cost is lower, and the maintenance duration is shorter.
Description
Technical field
The utility model relates to a kind of blanking plug, particularly relates to a kind of blanking plug for pipe leakage shutoff.
Background technique
Submarine pipeline is the lifeline that offshore oil and gas field is produced, and is a kind of shipping channels the most frequently used in offshore oil gas industry.Its advantage is can continus convergence, and hardly by the restriction of the condition such as the depth of water, landform, and it is short to lay the duration, and go into operation fast, oil transportation efficiency is high, and ability is large, is a requisite part in offshore oil gas production system.But its shortcoming is pipeline is in seabed, and most pipeline is embedded in certain depth in seafloor soil, once piping failure, maintenance and inspection difficulty, in order to reduce the off-time, reducing the loss stopping production and cause, before doing permanent reparation, should carry out emergency first-aid repair as early as possible.
Conventional submarine pipeline leakage blocking device is pipe clamp, and the installation requirement of pipe clamp has certain installing space, is applicable in the leakage shutoff of pipe long-distance without reducing region.And when being positioned at narrow space place or leakage position owing to there is other structure structure for pipe leakage region, conventional pipe clamp cannot be used to realize shutoff.
Summary of the invention
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of non-straight that is applicable to and stretches the blanking plug for pipe leakage shutoff that shutoff is carried out in position leakage.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of blanking plug for pipe leakage shutoff, be arranged at the base tapping of leak, described blanking plug comprises the vertical connecting rod that underpart is major part taper, be sheathed on described vertical connecting rod underpart and the anticreep claw contacted by cone match, be sheathed on described vertical connecting rod to spline and to be positioned at the friction top of this anticreep claw of pushing tow on the upside of described anticreep claw female, be bolted in described vertical connecting rod and the locking nut abutted with the female upper-end surface of friction top, the blade tooth that described anticreep claw is circumferentially provided with the comb teeth-shaped mated with described vertical connecting rod tapered lower end portion tapering forms multi-clove type structure, the female sealing with described base end face of described friction top is docked, described vertical connecting rod and the female inside lower end of friction top are tightly connected.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, described friction top is female conflicts with described base end face and establishes seal groove embedded sealing ring, is provided with seal groove and is embedded with seal ring between described vertical connecting rod and the female inside lower end of friction top.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, described vertical connecting rod is arranged with spacer sleeve, conflicting in the two ends of described spacer sleeve respectively, anticreep claw female with friction top, is provided with annular groove and embedded sealing ring is connected with base perforate inner seal outside described spacer sleeve.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, and described friction top mother is provided with the upper-end contact of seam and spacer sleeve.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, and described vertical connecting rod is arranged with lock nut, and described lock nut is connected to described locking nut upper end.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, and described vertical connecting rod side is provided with tangent plane, is provided with the spline platform coordinated with described tangent plane inside described friction top mother.
The one being used for the technological scheme of the blanking plug of pipe leakage shutoff as the utility model is improved, and described vertical connecting rod inside is axially arranged with through hole, and the top of described vertical connecting rod is provided with thread head and arranges valve body and is connected with this thread head.
The beneficial effects of the utility model are: by vertical connecting rod is directly embedded in Leak hole, what blanking plug lower end was provided with that a set of and described vertical connecting rod tapered lower end portion tapering mates can distending by push-and-pull, the anticreep claw of multi-clove type, due to the female spline of friction top be sheathed on vertical connecting rod, turn locking nut can promote friction top mother and move to underpart vertically, anticreep claw is multi-clove type claw distending under the pulling force of vertical connecting rod and the pushing force acting in conjunction of friction top mother, thus blanking plug is lock onto Leak hole place, fit tightly in leakage point inner, when preventing pressure from raising, blanking plug ejects from Leak hole, and then solve the pipe leakage problem that even special-shaped position that pipeline non-straight stretches exists small space, it is simpler that pipe close more conventional shutoff pipe clamp has structure, operate easier, cost is lower, the feature that the maintenance duration is shorter.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of a kind of blanking plug for pipe leakage shutoff of the utility model.
The cross-sectional view of the use embodiment that Fig. 2 is blanking plug shown in Fig. 1.
Fig. 3 is the perspective view of the vertical connecting rod in blanking plug.
Fig. 4 is the perspective view of the friction top mother in blanking plug.
Fig. 5 is the cross-sectional view of the friction top mother in blanking plug.
Fig. 6 is the perspective view of the anticreep claw in blanking plug.
Fig. 7 is the perspective view of the spacer sleeve in blanking plug.
Fig. 8 is the structural representation that blanking plug is flush-mounted in pipeline.
Embodiment
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
As shown in Fig. 1 ~ Fig. 8, a kind of blanking plug for pipe leakage shutoff of the utility model, be arranged at base 96 tapping of the leak of oil transport pipeline 99, blanking plug 10 comprises the vertical connecting rod 11 that underpart is major part taper, be sheathed on described vertical connecting rod 11 underpart and the anticreep claw 21 contacted by cone match, be sheathed on to spline described vertical connecting rod 11 and be positioned at the friction top mother 25 of this anticreep claw 21 of pushing tow on the upside of described anticreep claw 21, be bolted in described vertical connecting rod 11 and the locking nut 31 abutted with female 25 upper-end surfaces of friction top, the blade tooth 22 that described anticreep claw 21 is circumferentially provided with the comb teeth-shaped mated with described vertical connecting rod 11 tapered lower end portion tapering forms multi-clove type structure, described friction top female 25 seals with described base 96 end face and docks, described vertical connecting rod 11 is tightly connected with female 25 inner lower end position of friction top.Vertical connecting rod 11 stage casing is that screw rod 12 is convenient to the socket of locking nut 31 screw-in.By vertical connecting rod 11 is directly embedded in Leak hole 46, utilize being tightly connected thus forming an airtight cavity between blanking plug 10 and the sidewall in pipe leakage hole 46 of friction top mother 25.Extruding by push-and-pull and inner side that the lower end of blanking plug 10 is provided with that a set of and described vertical connecting rod 11 tapered lower end portion tapering mates can the anticreep claw 21 of multi-clove type of distending, the original Outside Dimensions of anticreep claw is less than Leak hole 46 minimum position, makes it can stretch in Leak hole.Due to female 25 splines of friction top be sheathed on vertical connecting rod 11, turn locking nut 31 can promote friction top mother 25 and move to underpart vertically, anticreep claw 21 distending of anticreep claw 21 multi-clove type under the pulling force of vertical connecting rod 11 and the pushing force acting in conjunction of friction top mother 25 forms annular back-off, fit tightly in leakage point Leak hole inner, closely firmly grasp the groove that base 96 lower end is provided with, thus blanking plug 10 is lock onto Leak hole 46 place, when preventing pressure from raising, blanking plug 10 ejects from Leak hole 46, and then realize anti-drop function, solve the pipe leakage problem that even special-shaped position that pipeline non-straight stretches exists small space, it is simpler that blanking plug 10 more conventional shutoff pipe clamp has structure, operate easier, cost is lower, the feature that the maintenance duration is shorter.
More preferably, described friction top female 25 is conflicted with described base 96 end face and establishes seal groove 28 embedded sealing ring, is provided with seal groove and is embedded with seal ring between described vertical connecting rod 11 and female 25 inside lower end of friction top.Utilize the extrusion-deformation of seal ring to realize between friction top female 25 and described base 96, and be tightly connected between vertical connecting rod 11 and friction top mother 25.Meanwhile, in order to prevent blanking plug 10 internal leakage, between all mobilizable components, all multi-sealing device can be set.
Base 96 sidewall sealing area is entered into for preventing outside seawater, in friction top female 25 bottoms, end part seal circle 28 is set, by when mounted to end seal ring 28 produce distortion, realize sealing base 96 inner annular region, prevent seawater corrosion from destroying the sealing of base 96 sidewall, improve the working life of sealing.
More preferably, described vertical connecting rod 11 is arranged with spacer sleeve 41, the two ends end face of described spacer sleeve 41 is conflicted with friction top mother 25, anticreep claw 21 respectively, be provided with annular groove 44 embedded sealing ring outside described spacer sleeve 41 to be connected with base 96 perforate inner seal, what can increase anticreep claw 21 snaps in the degree of depth, promote anticreep claw 21 distending in Leak hole 46, and provide annular groove 44 pairs of Leak holes to seal.
More preferably, described friction top mother 25 is provided with the upper-end contact of seam 29 and spacer sleeve 41, friction top mother 25 is positioned, thus indirectly to vertical connecting rod 11 position prevent blanking plug 10 from installing after shake and cause unstable structure and leak, the further quality improving blocking, increases sealing effect.
More preferably, described vertical connecting rod 11 is arranged with lock nut 51, and described lock nut 51 is connected to described locking nut 31 upper end, prevents locking nut 31 from getting loose, and ensures the plugging effect of blanking plug 10 further.
More preferably, described vertical connecting rod 11 side is provided with tangent plane 15, the spline platform 26 coordinated with described tangent plane is provided with inside described friction top mother 25, tangent plane 15 is corresponding with spline platform 26 even fits, prevent friction top female 25 from relatively with between vertical connecting rod 11 to rotate, thus order about vertical connecting rod 11 and move to axial with friction top mother 25, thus push-and-pull clamping anticreep claw 21 makes its distending and back-off lock onto in Leak hole 46.It is corresponding with spline platform 26 that vertical connecting rod can arrange at least one tangent plane, realizes mutual spline.Chase mortise respective outer side edges can certainly be set and carry out spline.
More preferably, described vertical connecting rod 11 inside is axially arranged with through hole 19, the top of described vertical connecting rod 11 is provided with thread head 18 and arranges valve body and is connected with this thread head 18, by through hole 19 pressure release in installation process, realize installation shutoff with pressure, the head of blanking plug 10 is lock onto after in Leak hole 46, then to be spirally connected a valve body with thread head 18 place, as ball valve, then close ball valve and realize leak stopping.
For structure of the present utility model and application are more clearly described, exemplify following example:
As shown in the figure, pipeline is due to the fracture of branch ball valve, and ball valve departs from completely, only leaves the leakage example of welding base when ball valve is installed in the duct, and the concrete implementation process of plugging operations is:
1, find leak position by diver or ROV, diver clears up the marine growth near leak source.
2, base 96 fracture on pipeline 99 is carried out grinding process, makes its bore depth, installation requirement that diameter of bore meets blocking device.
3, the blanking plug 10 be pre-installed is filled in base 96 fracture hole by diver, and utilize open-end wrench to be fixed and clamped and cover female 25, constantly screw locking nut 31, until locking nut 31 arrives predetermined moment of torsion, now blanking plug 10 is in place.For preventing locking nut 31 from loosening, install lock nut 51 thereon, preventing nut 31 from loosening affects sealing effect.
4, the valve of coupling is installed in vertical connecting rod 11 upper end, by valve closing after installation, realizes the shutoff to leak source.For preventing marine growth from entering in valve, after valve closing, in the hole of upper end, plug is installed.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (7)
1. the blanking plug for pipe leakage shutoff, be arranged at the base tapping of leak, it is characterized in that: described blanking plug comprises the vertical connecting rod that underpart is major part taper, be sheathed on described vertical connecting rod underpart and the anticreep claw contacted by cone match, be sheathed on described vertical connecting rod to spline and to be positioned at the friction top of this anticreep claw of pushing tow on the upside of described anticreep claw female, be bolted in described vertical connecting rod and the locking nut abutted with the female upper-end surface of friction top, the blade tooth that described anticreep claw is circumferentially provided with the comb teeth-shaped mated with described vertical connecting rod tapered lower end portion tapering forms multi-clove type structure, the female sealing with described base end face of described friction top is docked, described vertical connecting rod and the female inside lower end of friction top are tightly connected.
2. the blanking plug for pipe leakage shutoff according to claim 1, it is characterized in that: described friction top is female conflicts with described base end face and establishes seal groove embedded sealing ring, be provided with seal groove between described vertical connecting rod and the female inside lower end of friction top and be embedded with seal ring.
3. the blanking plug for pipe leakage shutoff according to claim 1, it is characterized in that: described vertical connecting rod is arranged with spacer sleeve, conflicting in the two ends of described spacer sleeve respectively, anticreep claw female with friction top, is provided with annular groove and embedded sealing ring is connected with base perforate inner seal outside described spacer sleeve.
4. the blanking plug for pipe leakage shutoff according to claim 3, is characterized in that: described friction top mother is provided with the upper-end contact of seam and spacer sleeve.
5. the blanking plug for pipe leakage shutoff according to claim 1, is characterized in that: described vertical connecting rod is arranged with lock nut, described lock nut is connected to described locking nut upper end.
6. the blanking plug for pipe leakage shutoff according to claim 1, is characterized in that: described vertical connecting rod side is provided with tangent plane, is provided with the spline platform coordinated with described tangent plane inside described friction top mother.
7. the blanking plug for pipe leakage shutoff according to claim 1, is characterized in that: described vertical connecting rod inside is axially arranged with through hole, and the top of described vertical connecting rod is provided with thread head and arranges valve body and is connected with this thread head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819404.9U CN204372443U (en) | 2014-12-23 | 2014-12-23 | A kind of blanking plug for pipe leakage shutoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819404.9U CN204372443U (en) | 2014-12-23 | 2014-12-23 | A kind of blanking plug for pipe leakage shutoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372443U true CN204372443U (en) | 2015-06-03 |
Family
ID=53328664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420819404.9U Withdrawn - After Issue CN204372443U (en) | 2014-12-23 | 2014-12-23 | A kind of blanking plug for pipe leakage shutoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372443U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500910A (en) * | 2014-12-23 | 2015-04-08 | 中国海洋石油总公司 | Blanking plug for blocking pipeline leakage |
| CN109827025A (en) * | 2019-03-13 | 2019-05-31 | 河钢股份有限公司承德分公司 | Pipe leakage stopper |
| CN111692455A (en) * | 2020-06-23 | 2020-09-22 | 安徽晋煤中能化工股份有限公司 | Expansion bolt type leakage blocking device and method |
-
2014
- 2014-12-23 CN CN201420819404.9U patent/CN204372443U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500910A (en) * | 2014-12-23 | 2015-04-08 | 中国海洋石油总公司 | Blanking plug for blocking pipeline leakage |
| CN109827025A (en) * | 2019-03-13 | 2019-05-31 | 河钢股份有限公司承德分公司 | Pipe leakage stopper |
| CN111692455A (en) * | 2020-06-23 | 2020-09-22 | 安徽晋煤中能化工股份有限公司 | Expansion bolt type leakage blocking device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |