Pressure plugging device for petroleum and natural gas pipeline

Abstract

The utility model provides a petroleum and natural gas pipeline under-pressure leaking stoppage device which comprises a leaking stoppage sleeve, a fixing piece and an oil discharging piece are arranged on the outer side of the leaking stoppage sleeve, an ejecting sleeve is arranged in the leaking stoppage sleeve, an adjusting piece is arranged on the outer side of the ejecting sleeve, and the oil discharging piece is arranged on the outer side of the adjusting piece. The fixing piece comprises a mounting block fixedly connected to the outer side of the leaking stoppage sleeve, a bolt is inserted into the mounting block, a nut is arranged on the outer side of the bolt, the oil discharging piece comprises a fixing pipe fixedly connected to the outer side of the leaking stoppage sleeve, a valve and an oil outlet pipe are arranged on the outer side of the fixing pipe, and the two jacking sleeves are symmetrically arranged. And all the connecting rods are inserted into the leaking stoppage sleeve. The petroleum and natural gas pipeline under-pressure plugging device solves the problems that when an existing device is used for plugging a pipeline, oil liquid can be sprayed out from the leakage position of the pipeline due to pressure, oil liquid waste can be caused, and operation of workers can be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline pressure plugging, in particular to a pressure plugging device for oil and natural gas pipelines. Background Art

[0002] Pressure plugging is to use suitable seals to completely cut off the channel for medium leakage, or to block or isolate the leakage medium channel, or to increase the fluid flow resistance in the leakage medium channel, so as to form a closed space and achieve the purpose of preventing fluid leakage.

[0003] The patent document with announcement number: CN215060434U discloses "a device for plugging leaks under pressure in a petroleum and natural gas pipeline". By means of the cooperation between a left-end threaded rod, a right-end threaded rod, a second threaded barrel, a rotating handle, a slot and a block and a main body of the plugging leak device, and by means of the rotation of the rotating handles at the outer ends of the left-end threaded rod and the right-end threaded rod, a main body of a positioning device that has been connected to the outer surface of both ends by the second threaded barrel and has been fixed on the outer wall of the pipeline is moved, so that the leaking gap can be covered by slightly tightening the two ends. However, when the above device is used to plug the pipeline, oil will spray out from the leaking part of the pipeline due to pressure, which will not only cause a waste of oil, but also affect the operation of the staff. Therefore, it is necessary to provide a device for plugging leaks under pressure in a petroleum and natural gas pipeline to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an easy-to-use pressure plugging device for oil and gas pipelines.

[0005] The utility model provides a pressure plugging device for oil and gas pipelines, comprising a plugging sleeve, a fixing part and an oil discharge part are arranged on the outer side of the plugging sleeve, a top tightening sleeve is arranged inside the plugging sleeve, an adjusting part is arranged on the outer side of the top tightening sleeve, the fixing part comprises a mounting block fixedly connected to the outer side of the plugging sleeve, a bolt is inserted inside the mounting block, a nut is arranged on the outer side of the bolt, the oil discharge part comprises a fixing pipe fixedly connected to the outer side of the plugging sleeve, a valve and an oil outlet pipe are arranged on the outer side of the fixing pipe.

[0006] In order to seal the pipeline of leaking oil, the utility model provides a pressure plugging device for petroleum and natural gas pipelines. Preferably, two tightening sleeves are symmetrically arranged and both are inserted into the plugging sleeve.

[0007] In order to fix two plugging sleeves on the outside of the pipeline, the utility model provides a pressure plugging device for oil and gas pipelines. Preferably, two plugging sleeves are symmetrically arranged, and the outsides of both plugging sleeves are fixedly connected with mounting blocks.

[0008] In order to fix the tightening sleeve inside the plugging sleeve, the utility model provides a pressure plugging device for oil and gas pipelines. Preferably, the adjusting member includes a connecting sleeve clamped on the outside of the nut, the outside of the connecting sleeve is fixedly connected with a screw, the outside of the tightening sleeve is fixedly connected with a connecting block, and the screw is inserted into the inside of the connecting block.

[0009] In order to improve the sealing performance of the plugging sleeve and prevent oil leakage, the utility model provides a pressure plugging device for oil and gas pipelines. Preferably, the inner wall of the plugging sleeve is respectively fixedly connected with a first sealing sleeve and a second sealing sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The oil and gas pipeline pressure plugging device has two plugging sleeves clamped to the leaking part of the pipeline, then the bolts are inserted into the inside of the mounting block, and then the nuts are installed on the outside of the bolts and tightened, and the two plugging sleeves are fixed to the outside of the pipeline to plug the leaking part of the pipeline. When the plugging sleeves are installed, the valve is opened, and when the plugging sleeves are clamped, oil is discharged from the oil outlet pipe, so that the oil can be received to avoid oil waste, and the pressure inside the plugging sleeves can be reduced, which makes it more convenient for users to install the plugging sleeves, and solves the problem that when the existing device is used to plug the pipeline, the oil will spray out from the leaking part of the pipeline due to pressure, which will not only cause oil waste but also affect the operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a preferred embodiment of the oil and gas pipeline pressure plugging device provided by the utility model;

[0013] Figure 2 This is a structural schematic diagram of the leak-proof sleeve of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure inside the leak-proof sleeve of the utility model.

[0015] Numbers in the figure: 1. Leak-proof sleeve; 2. Fixing part; 201. Mounting block; 202. Bolt; 203. Nut; 3. Oil drain part; 301. Fixing pipe; 302. Valve; 303. Oil outlet pipe; 4. Tightening sleeve; 5. Adjusting part; 501. Connecting sleeve; 502. Screw; 503. Connecting block; 6. First sealing sleeve; 7. Second sealing sleeve. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0017] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1A schematic structural diagram of a preferred embodiment of the oil and gas pipeline pressure plugging device provided by the utility model; Figure 2 This is a structural schematic diagram of the leak-proof sleeve of the utility model; Figure 3 The schematic diagram of the structure inside the plugging sleeve of the utility model. A plugging device for plugging oil and natural gas pipelines under pressure includes a plugging sleeve 1, and a fixing part 2 and an oil discharge part 3 are arranged on the outside of the plugging sleeve 1. The plugging sleeve 1 is fixed to the outside of the pipeline by setting the fixing part 2, and the leaked oil is discharged by setting the oil discharge part 3, and the pressure of the plugging sleeve 1 is reduced. A tightening sleeve 4 is arranged inside the plugging sleeve 1, and the tightening sleeve 4 is inserted into the inside of the plugging sleeve 1. The plugging sleeve 1 is tightened and sealed by setting the tightening sleeve 4. An adjusting part 5 is arranged on the outside of the tightening sleeve 4, and the tightness of the tightening sleeve 4 is adjusted by setting the adjusting part 5.

[0018] In this embodiment: the plugging sleeve 1 is fixed to the outside of the leaking pipe by using the fixing member 2, and the oil is discharged by using the oil discharge member 3 to avoid oil waste, while reducing the pressure inside the plugging sleeve 1 to facilitate the plugging of the pipe, and the tightening sleeve 4 is fixed to the inside of the plugging sleeve 1 by using the adjusting member 5 to improve the sealing performance of the plugging sleeve 1.

[0019] As a technical optimization scheme of the utility model, the fixing part 2 includes a mounting block 201 fixedly connected to the outside of the plugging sleeve 1, the mounting block 201 is welded to the outside of the plugging sleeve 1, a bolt 202 is inserted into the inside of the mounting block 201, a through hole is opened inside the mounting block 201, the bolt 202 is inserted into the inside of the mounting block 201, a nut 203 is arranged on the outside of the bolt 202, and the nut 203 is threadedly connected to the outside of the bolt 202; the plugging sleeve 1 is symmetrically arranged with two mounting blocks 201, and the outsides of both are fixedly connected, and the plugging sleeve 1 is symmetrically clamped on the outside of the plugging sleeve 1.

[0020] In this embodiment: two plugging sleeves 1 are symmetrically clamped on the outside of the plugging sleeve 1, and then the bolt 202 is inserted into the inside of the mounting block 201, and then the nut 203 is installed on the outside of the bolt 202 and tightened, and the two plugging sleeves 1 are fixed to the outside of the pipeline to seal the leakage of the pipeline.

[0021] As a technical optimization solution of the utility model, the oil discharge part 3 includes a fixed pipe 301 fixedly connected to the outside of the plugging sleeve 1, the fixed pipe 301 is welded to the outside of the upper plugging sleeve 1, and a valve 302 and an oil outlet pipe 303 are arranged on the outside of the plugging sleeve fixed pipe 301. The valve 302 is installed on the outside of the fixed pipe 301, and the oil outlet pipe 303 is welded to the outside of the fixed pipe 301. The oil output is controlled by the valve 302, and the oil is discharged through the oil outlet pipe 303.

[0022] In this embodiment: when the plugging sleeve 1 is installed, the valve 302 is opened. When the plugging sleeve 1 is clamped, the oil is discharged from the oil outlet pipe 303, so that the oil can be received to avoid oil waste, and the pressure inside the plugging sleeve 1 can be reduced, which makes it easier for users to install the plugging sleeve 1.

[0023] As a technical optimization solution of the utility model, two tightening sleeves 4 are symmetrically arranged and both are inserted into the inside of the plugging sleeve 1. Both ends of the plugging sleeve 1 are inserted with tightening sleeves 4. The two ends of the plugging sleeve 1 are sealed by the tightening sleeves 4 to improve the sealing performance.

[0024] In this embodiment: while installing the plugging sleeve 1, the tightening sleeve 4 is inserted into the inside of the plugging sleeve 1 to improve the sealing performance of the plugging sleeve 1 and avoid oil leakage.

[0025] As a technical optimization scheme of the utility model, the adjusting member 5 includes a connecting sleeve 501 which is clamped on the outside of the nut 203. The connecting sleeve 501 is hollow inside and can be clamped on the outside of the nut 203. The outside of the connecting sleeve 501 is fixedly connected with a screw 502, which is welded to the outside of the connecting sleeve 501. The outside of the tightening sleeve 4 is fixedly connected with a connecting block 503, which is welded to the outside of the tightening sleeve 4. The screw 502 is inserted into the inside of the connecting block 503. The screw 502 is inserted into the inside of the connecting block 503, and the outside of the screw 502 is threadedly connected with a nut, which is used to fix the screw 502 to the connecting block 503.

[0026] In this embodiment: after the tightening sleeve 4 is inserted into the plugging sleeve 1, the connecting sleeve 501 is clamped to the outside of the nut 203, and then the screw 502 passes through the connecting block 503, and the screw 502 is fixed to the connecting block 503 using the nut, thereby fixing the tightening sleeve 4 inside the plugging sleeve 1.

[0027] As a technical optimization solution of the utility model, the inner wall of the plugging sleeve 1 is fixedly connected with a first sealing sleeve 6 and a second sealing sleeve 7, respectively. The first sealing sleeve 6 is welded to the side of the plugging sleeve 1, and the second sealing sleeve 7 is welded to the two ends inside the plugging sleeve 1. The first sealing sleeve 6 and the second sealing sleeve 7 are used to improve the sealing performance of the plugging sleeve 1.

[0028] In this embodiment, the first sealing sleeve 6 is used to improve the sealing performance between the upper and lower plugging sleeves 1 , and the second sealing sleeve 7 is used to improve the sealing performance between the plugging sleeve 1 and the pipeline and the tightening sleeve 4 .

[0029] The working principle of the pressure plugging device for oil and gas pipelines provided by the utility model is as follows:

[0030] When plugging a leaking pipeline, two plugging sleeves 1 are clamped to the leaking part of the pipeline, and then the bolts 202 are inserted into the inside of the mounting block 201, and then the nuts 203 are installed on the outside of the bolts 202 and tightened, and the two plugging sleeves 1 are fixed to the outside of the pipeline to plug the leaking part of the pipeline. When the plugging sleeve 1 is installed, the valve 302 is opened. When the plugging sleeve 1 is clamped, the oil is discharged from the oil outlet pipe 303, and the oil can be received to avoid oil waste, and the pressure inside the plugging sleeve 1 can be reduced. , which makes it easier for users to install the plugging sleeve 1. After plugging the leak, just close the valve 302. While installing the plugging sleeve 1, plug the tightening sleeve 4 into the inside of the plugging sleeve 1 to improve the sealing performance of the plugging sleeve 1 and avoid oil leakage. After the tightening sleeve 4 is plugged into the plugging sleeve 1, snap the connecting sleeve 501 into the outside of the nut 203, and then the screw 502 passes through the connecting block 503, and the screw 502 is fixed to the connecting block 503 by using the nut, so that the tightening sleeve 4 is fixed to the inside of the plugging sleeve 1.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressure plugging device for oil and gas pipelines, characterized in that: The invention comprises a plugging sleeve (1), wherein a fixing part (2) and an oil discharge part (3) are arranged on the outer side of the plugging sleeve (1), a tightening sleeve (4) is arranged inside the plugging sleeve (1), and an adjusting part (5) is arranged on the outer side of the tightening sleeve (4), wherein the fixing part (2) comprises a mounting block (201) fixedly connected to the outer side of the plugging sleeve (1), a bolt (202) is inserted inside the mounting block (201), and a nut (203) is arranged on the outer side of the bolt (202), and the oil discharge part (3) comprises a fixing pipe (301) fixedly connected to the outer side of the plugging sleeve (1), and a valve (302) and an oil outlet pipe (303) are arranged on the outer side of the fixing pipe (301).

2. The oil and gas pipeline under pressure plugging device according to claim 1 is characterized in that: Two tightening sleeves (4) are symmetrically arranged and are both inserted into the inside of the leak-proof sleeve (1).

3. The oil and gas pipeline under-pressure plugging device according to claim 1 is characterized in that: The leak-proof sleeves (1) are symmetrically arranged with two of them, and the outer sides of both sleeves are fixedly connected with a mounting block (201).

4. The oil and gas pipeline under-pressure plugging device according to claim 1 is characterized in that: The adjusting member (5) comprises a connecting sleeve (501) clamped on the outside of the nut (203), a screw rod (502) is fixedly connected to the outside of the connecting sleeve (501), a connecting block (503) is fixedly connected to the outside of the tightening sleeve (4), and the screw rod (502) is inserted into the inside of the connecting block (503).

5. The oil and gas pipeline under-pressure plugging device according to claim 1 is characterized in that: The inner wall of the leak-proof sleeve (1) is respectively fixedly connected with a first sealing sleeve (6) and a second sealing sleeve (7).

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