CN211853182U

CN211853182U - Pipeline plugging device

Info

Publication number: CN211853182U
Application number: CN201922218020.7U
Authority: CN
Inventors: 王雪娇; 陈亮; 豆磊
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-11-03
Anticipated expiration: 2029-12-12

Abstract

The utility model provides a pipeline plugging device: comprises a bracket and a pressure supply device; the bracket comprises a first clamping part, a supporting part and a second clamping part, wherein the first clamping part and the second clamping part are respectively positioned at two ends of the supporting part, and are connected to the same side of the supporting part; the first clamping part, the second clamping part and the supporting part enclose an operation space for accommodating a pipeline to be plugged together; be equipped with first through-hole on the first clamping part, supply to press the device to follow the axial of first through-hole is flexible to impress the sealing member treat the shutoff pipeline, through support and the setting that supplies to press the device can treat the shutoff pipeline fast and carry out the shutoff, need not to wait for pipeline pressure release unloading or replace medium in the pipeline, have avoided the wasting of resources, have reduced the pollution range, have reduced secondary disaster's emergence probability and danger degree.

Description

Pipeline plugging device

Technical Field

The utility model relates to a pipeline transportation field especially relates to a pipeline plugging device.

Background

Petroleum belongs to a non-renewable resource and occupies a very critical position in the development of national economy in China. At the present stage, the main form of petroleum transportation is petroleum pipeline transportation, and if the petroleum pipeline leaks, resources are wasted and the environment is polluted.

The most direct cause of pipeline leakage is: the failure of the pipeline facility material, and the main reasons of the failure of the material are as follows: wear, cracks, corrosion, etc., mainly manifested by: the pipeline is damaged and abraded, slag inclusion and air holes exist in the welding seam of the steel pipe, the pipeline is aged, the sealing effect is achieved, and the like. After leakage occurs, in the prior art, the pressure source is usually cut off, for example, a valve is closed, the pressure relief of the pipeline is waited to reach a stable state, and after a medium in the pipeline is replaced, measures such as welding or pressurized leakage repairing are taken for repairing a leakage point.

However, in the prior art, even if emergency measures are taken and the pressure source is cut off, the pipeline cannot be decompressed in a short time to reach a stable state, and the pipeline is still in a leakage state in the time of waiting for decompression and emptying of the pipeline and replacement of media in the pipeline, so that resource waste is caused, the pollution range is expanded, and the occurrence probability and the risk degree of secondary disasters are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline plugging device for in the time of waiting for pipeline pressure release unloading and replacement pipeline inner medium among the solution prior art, the pipeline still is in the leakage state, leads to the wasting of resources, and the pollution range enlarges, the problem that secondary disaster's emergence probability and danger degree increase.

The utility model provides a pipeline plugging device: comprises a bracket and a pressure supply device;

the bracket comprises a first clamping part, a supporting part and a second clamping part, wherein the first clamping part and the second clamping part are respectively positioned at two ends of the supporting part, and are connected to the same side of the supporting part; the first clamping part, the second clamping part and the supporting part enclose an operation space for accommodating a pipeline to be plugged together;

the first clamping part is provided with a first through hole, and the pressure supply device can stretch along the axial direction of the first through hole so as to press the sealing element into the pipeline to be plugged.

Optionally, the pressure supply device includes a screw rod, the first through hole is a threaded hole, and the screw rod is arranged in the first through hole in a penetrating manner.

Optionally, the pressure supply device further comprises a handle, and the handle is located at one end of the screw rod, which is far away from the first through hole.

Optionally, the end of the handle is provided with an anti-slip protrusion.

Optionally, the second clamping portion is curved in a direction away from the first clamping portion.

Optionally, still include the protection casing, the first end of protection casing with the screw rod second end is connected, the second end of protection casing is provided with and waits to block off pipeline matched with arc type opening.

Optionally, a second through hole is formed in the first end of the protective cover, and the protective cover is sleeved on the second end of the screw rod through the second through hole.

Optionally, the protective cover further comprises a plug, a second through hole is formed in the first end of the protective cover, the protective cover is sleeved on the first end of the plug through the second through hole, the second end of the plug is located in the protective cover, and the second end of the screw is connected with the first end of the plug.

Optionally, the second end of the screw 22 is ball-hinged to the first end of the plug, the cross section of the first end of the plug is polygonal, and the second through hole is a polygonal through hole matched with the first end of the plug.

Optionally, the shield further comprises a sealing ring, the sealing ring being located within the first end of the shield.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a pipeline plugging device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first clamping portion according to an embodiment of the present invention;

fig. 3 is a schematic view of a pipeline plugging device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of another pipeline plugging device provided in an embodiment of the present invention;

fig. 5 is a schematic view of a protective cover according to an embodiment of the present invention;

fig. 6 is a schematic view of another pipeline plugging device using a protective cover according to an embodiment of the present invention;

fig. 7 is a schematic view of another protective cover according to an embodiment of the present invention;

fig. 8 is a schematic view of another pipeline plugging device using another protection cover according to an embodiment of the present invention.

Reference numerals:

1: a support;

11: a first clamping portion;

111: a first through hole;

12: a support portion;

13: a second clamping portion;

2: a pressure supply device;

21: a handle;

211: anti-skid projections;

22: a screw;

3: a protective cover;

31: an arc-shaped opening;

32: a second through hole;

33: a seal ring;

4: a plug;

5: a seal body;

6: a pipeline to be plugged;

7: and (4) ball joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Along with the continuous development of social economy, the exploitation strength of petroleum and natural gas is gradually increased. The transportation pipeline is an important transportation tool for petroleum and natural gas, but is influenced by environmental and human factors, so that leakage events can occur in the transportation process. The leakage of the petroleum and the natural gas not only causes resource waste, but also has adverse effects on the environment and the safety.

When a pipeline leaks in the prior art, a pressure source needs to be cut off firstly, the pipeline is decompressed until the pipeline is stable, the transmission medium in the pipeline needs to be replaced because the petroleum and natural gas transmitted in the pipeline is a flammable and explosive medium, and finally, a leakage point is repaired in a welding or pressurized leakage repairing mode; pipeline pressure relief and transmission medium replacement need longer time, and the leakage of leak source has wasted a large amount of resources in the time of waiting, and the pollution scope further enlarges, and secondary disaster's emergence probability rises, and the dangerous degree of leak source repair increases.

Fig. 1 is the embodiment of the utility model provides a pipeline plugging device schematic structure diagram, fig. 2 is the utility model provides a first clamping part schematic structure diagram, fig. 3 is the utility model discloses a pipeline plugging device's that provides work schematic diagram, according to fig. 1-3, the utility model provides a pipeline plugging device, include: a bracket 1 and a pressure supply device 2;

the bracket 1 comprises a first clamping part 11, a supporting part 12 and a second clamping part 13, wherein the first clamping part 11 and the second clamping part 13 are respectively positioned at two ends of the supporting part 12, and the first clamping part 11 and the second clamping part 13 are both connected to the same side of the supporting part 12; the first clamping part 11, the second clamping part 13 and the supporting part 12 jointly enclose an operating space for accommodating the pipeline 6 to be blocked;

the first clamping part 11 is provided with a first through hole 111, and the pressure supply device 2 can extend and retract along the axial direction of the first through hole 111 so as to press the sealing element 5 into the pipeline 6 to be plugged.

Specifically, an operator erects the support 1 at a corresponding position of the pipeline 6 to be plugged through the handheld support part 12, namely, the pipeline 6 to be plugged is positioned in an operation space defined by the first clamping part 11, the second clamping part 13 and the support part 12 together and used for accommodating the pipeline 6 to be plugged; wherein the first clamping part 11 is opposite to the leakage position of the pipeline 6 to be blocked, and the second clamping part 13 is close to the other side of the leakage position on the pipeline 6 to be blocked; the pressure supply device 2 presses down towards the second clamping part 13 along the first through hole 111 on the first clamping part 11, the pressure supply device 2 abuts against the elastic rubber sealing element 5 arranged outside the leakage position of the pipeline 6 to be plugged, the sealing element 5 is pressed into the leakage gap of the pipeline 6 to be plugged, and then pipeline plugging is completed.

Optionally, the pressure supply device 2 includes a screw 22, the first through hole 111 is a threaded hole, and the screw 22 is inserted into the first through hole 111.

Specifically, the pressure output end of the pressure supply device 2 is a screw rod 22, the screw rod 22 is in threaded fit with the first through hole 111 on the first clamping portion 11, and the telescopic action of the output end of the pressure supply device 2 is completed by rotating the screw rod 22, so that sufficient pressure is provided for pipeline plugging.

Optionally, the pressure supply device 2 further includes a handle 21, and the handle 21 is located at an end of the screw 22 away from the first through hole 111.

Specifically, the pressure input end of the pressure supply device 2 is a handle 21, and the handle 21 is fixedly connected with one end of the screw 22 far away from the first threaded hole 111; the handles 21 are symmetrically arranged on two sides of the screw rod 22, so that the handles 21 can be rotated manually, and an operator can provide power for the pressure supply device 2 by rotating the handles 21 manually, so that the screw rod 22 is driven to rotate to complete corresponding expansion and contraction.

Optionally, the end of the handle 21 is provided with a non-slip protrusion 211.

Specifically, in the process of rotating the handle 21, the hand of the operator easily slides with the handle 21, so that the handle 21 is separated from the hand, the device is displaced, and the support 1 needs to be erected again for plugging operation; through setting up the non-slip raised 211, avoided operating personnel to take off the hand, ensured lasting stable confession and press.

Furthermore, a rubber sleeve or anti-skid lines can be additionally arranged on the handle 21, so that the friction force between the hand of the operator and the handle 21 is increased, and the operator is prevented from falling off the hand.

Alternatively, both end portions of the handle 21 may be provided with screw holes along the handle shaft 21.

Specifically, still including can with above-mentioned screw hole complex extension bar, when the pressure that the shutoff needs to provide is great, the extension bar is connected to the accessible to increase handle length, and then increase and supply the pressure output of pressing 2 output ends of device.

It should be noted that, the two end portions of the handle 21 may also be provided with external threads along the axial direction of the handle, and one end of the corresponding extension bar is provided with a threaded hole matched with the axial direction of the extension bar, so as to realize the connection between the extension bar and the handle.

Alternatively, the second clamping portion 13 is curved in a direction away from the first clamping portion 11.

Specifically, second clamping part 13 is the arc structure, and the nock of second clamping part 31 is towards first clamping part 11, and treats shutoff pipeline 6 with the screw rod 22 cooperation centre gripping that stretches out in first through-hole 111 on first clamping part 11, and second clamping part 13 radian is greater than the radian of treating shutoff pipeline 6.

Further, the inner side of the arc opening of the second clamping part 13 is provided with a rubber or plastic anti-slip pad, so that the phenomenon that the second clamping part 13 and the pipeline 6 to be plugged are relatively displaced in the plugging process to influence the plugging operation, and the support 1 needs to be erected again for plugging is avoided.

As shown in fig. 3, the pipe plugging device provided by the present embodiment is specifically used as follows:

firstly, determining a leakage point of a pipeline 6 to be blocked, erecting a support 1 at a corresponding position of the pipeline 6 to be blocked by an operator holding a supporting part 12, and enabling a first clamping part 11 to be opposite to the leakage position of the pipeline 6 to be blocked and a second clamping part 13 to be closely attached to the other side of the leakage position on the pipeline 6 to be blocked; the handle 21 is rotated to drive the screw rod 22 to rotate and extend downwards, the screw rod 22 abuts against the elastic rubber sealing piece 5 arranged outside the leakage position of the pipeline 6 to be plugged, the sealing piece 5 is pressed into a leakage gap of the pipeline 6 to be plugged, and then the plugging of the pipeline 6 to be plugged is completed.

The present embodiment provides a pipe plugging device: comprises a bracket and a pressure supply device; the bracket comprises a first clamping part, a supporting part and a second clamping part, wherein the first clamping part and the second clamping part are respectively positioned at two ends of the supporting part, and the first clamping part and the second clamping part are both connected to the same side of the supporting part; the first clamping part, the second clamping part and the supporting part enclose an operation space for accommodating a pipeline to be plugged together; be equipped with first through-hole on the first clamping part, supply to press the device to stretch out and draw back along the axial of first through-hole to wait the shutoff pipeline with the sealing member is impressed, through support and the setting that supplies to press the device, can treat the shutoff pipeline fast and carry out the shutoff, need not to wait for pipeline pressure release unloading or replace medium in the pipeline, avoided the wasting of resources, reduced the pollution zone, reduced secondary disaster's emergence probability and danger degree.

Fig. 4 is a schematic structural view of another pipeline plugging device according to an embodiment of the present invention, and as shown in fig. 4, the present invention provides another pipeline plugging device, which further includes a protection cover 3 on the basis of the above embodiment;

the first end of the protective cover 3 is connected with the second end of the screw 22, and the second end of the protective cover 3 is provided with an arc-shaped opening 31 matched with the pipeline 6 to be blocked.

Specifically, the protection casing 3 is a cylindrical structure with a cavity arranged at the lower part, the protection casing 3 covers the leakage point of the pipeline 6 to be plugged, the sealing element 5 is placed in the cavity of the protection casing 3, the plugging operation is completed in the protection casing 3, and the condition that the spraying of media in the pipeline to be plugged harms the safety of operators is avoided.

Optionally, a second through hole 32 is disposed at the first end of the protective cover 3, and the protective cover 3 is sleeved on the second end of the screw 22 through the second through hole 32.

Specifically, as shown in fig. 5, a protective cover has a structure that: the top of the protection cover 3 is provided with a second through hole 32, and the screw 22 of the pressure supply device 2 can penetrate through the second through hole 32 to abut against the sealing body 5 in the cavity of the protection cover 3, so that the sealing is completed.

Optionally, the protecting cover 3 further comprises a sealing ring 33, and the sealing ring 33 is located on the inner wall of the second through hole and forms a seal with the screw 22.

As shown in fig. 6, the specific use process of the further pipe plugging device provided by this embodiment is as follows:

firstly, determining a leakage point of a pipeline 6 to be blocked, erecting a support 1 at a corresponding position of the pipeline 6 to be blocked by an operator holding a supporting part 12, facing a first clamping part 11 to the leakage position of the pipeline 6 to be blocked, abutting a second clamping part 13 to the other side of the leakage position on the pipeline 6 to be blocked, covering a protective cover at the leakage point of the pipeline to be blocked, placing a sealing element in a cavity of the protective cover, driving a screw rod 22 penetrating through the top of the protective cover 3 to rotate and extend downwards by rotating a handle 21, abutting the screw rod 22 against the sealing element 5 arranged outside the leakage position of the pipeline 6 to be blocked, pressing the sealing element 5 into a leakage gap of the pipeline 6 to be blocked, and further completing the blocking of the pipeline 6 to.

According to the pipeline plugging device provided by the embodiment, the plugging process is completed in the cavity of the protective cover through the arrangement of the protective cover, the condition that the spraying of media in the pipeline harms the safety of operators is avoided, and the safety of plugging operation is improved.

As shown in fig. 7, another protection cover has the following structure: on the basis of the above embodiment, the method further comprises the following steps: the plug 4 is provided with a second through hole 32 at the first end of the protective cover 3, the protective cover 3 is sleeved at the first end of the plug 4 through the second through hole 32, the second end of the plug 4 is located in the protective cover 3, and the second end of the screw rod 22 is connected with the first end of the plug 4.

Specifically, the screw 22 of the pressure supply device 2 abuts against the first end of the plug 4, and the first end of the plug 4 axially extends and retracts along the second through hole 32 formed in the protective cover 3, so that the second end of the plug 4 abuts against and extrudes the sealing body 5, and the plugging is completed. Through adding and establishing end cap 4, avoided screw rod 22 directly to wear to establish in the second through-hole 32 of protection casing 3, because of screw rod 22 slope card dies in protection casing 3 second through-hole 32 during the shutoff, can't accomplish the shutoff operation.

Furthermore, the sealing ring 33 is located on the inner wall of the second through hole to form a seal with the first end of the plug 4.

Optionally, the second end of the screw 22 is ball-hinged 7 to the first end of the plug 4, the cross section of the first end of the plug 4 is polygonal, and the second through hole 32 is a polygonal through hole matched with the first end of the plug.

Specifically, the second end of the screw 22 is connected with the first end of the plug 4 through the ball hinge 7, so that the integrity of the device is improved on the basis of avoiding the screw 22 from being blocked, and the device is convenient to erect quickly; the section of the first end of the plug 4 is polygonal, and the second through hole 32 is a polygonal through hole matched with the first end of the plug to prevent the plug from rotating; the pressure supply device provides downward pressure through rotation, so that the sealing body is extruded to enter the leak point gap, the surface of the leak point is generally rough or has sharp protrusions, and if radial rotating force exists in the pressing-down process, the sealing body is easily twisted off or cracked when not completely pressed into the leak point gap, so that the sealing body is not tightly blocked.

As shown in fig. 8, the specific use process of the further pipe plugging device provided by this embodiment is as follows:

firstly, determining a leakage point of a pipeline 6 to be blocked, erecting a support 1 at a corresponding position of the pipeline 6 to be blocked by an operator holding a supporting part 12, facing a first clamping part 11 to the leakage position of the pipeline 6 to be blocked, abutting a second clamping part 13 to the other side of the leakage position on the pipeline 6 to be blocked, covering a protective cover 3 at the leakage point of the pipeline 6 to be blocked, placing a sealing element 5 in a cavity of the protective cover 3, rotating a screw rod 22 driven by a rotating handle 21 to extend downwards, abutting the screw rod 22 against a first end of a plug, axially extending and retracting the plug 4 only along a second through hole arranged on the protective cover, further extruding the sealing element 5 placed outside the leakage position of the pipeline 6 to be blocked by a second end of the plug 4, pressing the sealing element 5 into a leakage gap of the pipeline 6 to be blocked, and further completing the blocking of the.

According to the pipeline plugging device provided by the embodiment, the plugging process is completed in the cavity of the protective cover by adding the plug on the basis of arranging the protective cover, so that the condition that the spraying of a medium in the pipeline harms the safety of an operator is avoided, and the safety of plugging operation is improved; meanwhile, the screw rod is prevented from being clamped, and the sealing body is prevented from being cut or twisted off, so that the stability of the plugging process is ensured, and the plugging quality is improved.

In the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "fixed" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; it can be mechanically coupled, directly coupled, indirectly coupled through intervening media, coupled between two elements, or coupled between two elements in a mutual relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A pipe plugging device, comprising: comprises a bracket and a pressure supply device;

2. The pipe plugging device of claim 1, wherein said pressure supply device comprises a threaded rod, said first through hole is a threaded hole, and said threaded rod is inserted into said first through hole.

3. The pipe blanking plug of claim 2 wherein the pressure supply means further comprises a handle located at an end of the threaded rod remote from the first through hole.

4. The pipe blanking of claim 3 wherein the end of the handle is provided with a non-slip projection.

5. The duct sealer according to claim 4, wherein the second grip portion is curved toward a direction away from the first grip portion.

6. The pipeline plugging device according to any one of claims 2 to 4, further comprising a protective cover, wherein a first end of the protective cover is connected with a second end of the screw rod, and the second end of the protective cover is provided with an arc-shaped opening matched with a pipeline to be plugged.

7. The pipe plugging device of claim 6, wherein said first end of said protective cap is provided with a second through hole, and said protective cap is sleeved on said second end of said threaded rod through said second through hole.

8. The pipeline plugging device according to claim 6, further comprising a plug, wherein a first end of the protective cover is provided with a second through hole, the protective cover is sleeved on the first end of the plug through the second through hole, a second end of the plug is located in the protective cover, and a second end of the screw is connected with the first end of the plug.

9. The pipe plugging device according to claim 8, wherein the second end of the screw rod (22) is ball-hinged with the first end of the plug, the cross section of the first end of the plug is polygonal, and the second through hole is a polygonal through hole matched with the first end of the plug.

10. The pipe blanking of claim 6 wherein the protective cover further comprises a sealing ring, the sealing ring being located within the first end of the protective cover.