Plugging device for long oil and gas conveying pipeline

Abstract

The utility model belongs to the technical field of pipeline plugging, and particularly relates to a long oil and gas pipeline plugging device which comprises a plugging assembly arranged on a conveying pipe. The blocking assembly comprises a fixing plate arranged above the conveying pipe, two L-shaped plates connected to the interior of the fixing plate in a sliding mode and a threaded rod rotationally connected to the interior of the fixing plate through a bearing, the blocking assembly is arranged, a leaked pipeline part can be rapidly isolated through isolation, the diffusion range of leaked liquid is limited, and the leakage of the leaked liquid is avoided. The pressure in the leakage conveying pipe can be reduced, a safer environment is provided for follow-up plugging operation, a damaged point can be plugged more easily through the first arc-shaped extrusion plate, the plugging difficulty and risk are reduced, the whole repairing process can be accelerated through the first isolation and second plugging step, the production halt time is shortened, and economic losses are reduced; and the use effect of the device is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline blocking, and in particular relates to a long-distance oil and gas pipeline blocking device. Background Art

[0002] During the long-term operation of long-distance oil and gas soft pipelines, defects may occur in the pipe body due to third-party damage, drilling and oil theft, corrosion, etc., resulting in leakage of the transported liquid. The leaked liquid will pollute the surrounding environment, or cause legal disputes, social panic, and even further cause accidents such as fire and explosion. Therefore, when leakage occurs, the defective position needs to be temporarily blocked;

[0003] At present, when the pipeline plugging device is used, as the liquid in the pipeline leaks out through the damaged port, the impact force of the liquid is relatively large. In this process, plugging is performed through the plugging mechanism, which is undoubtedly more difficult due to the influence of liquid discharge, thereby prolonging the repair process, increasing economic losses, and reducing the use effect of the device;

[0004] In order to solve the above problems, the present application proposes a long-distance oil and gas pipeline plugging device. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a long-distance oil and gas pipeline plugging device, which can quickly cut off the leaking pipeline part, limit the diffusion range of the leaking liquid, help reduce the pressure in the leaking transmission pipe, and provide a safer environment for subsequent plugging operations. The arc-shaped extrusion plate can more easily plug the damaged point, reducing the difficulty and risk of plugging. The steps of first isolating and then plugging can speed up the overall repair process, reduce downtime, reduce economic losses, and further improve the use effect characteristics of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a long-distance oil and gas pipeline plugging device, comprising a plugging assembly arranged on a delivery pipe, the plugging assembly comprising a fixed plate arranged above the delivery pipe, two L-shaped plates slidably connected to the inside of the fixed plate, and a threaded rod rotatably connected to the inside of the fixed plate through a bearing, the L-shaped plate is threadedly connected to the surface of the threaded rod through a threaded hole, the threaded surfaces on both sides of the threaded rod are designed with opposite structures, and arc-shaped extrusion plates are fixed on the sides of the two groups of L-shaped plates close to each other, an adjusting bolt is threadedly connected to the inside of the fixed plate through a threaded hole, and the bottom end of the adjusting bolt is rotatably connected to the inside of the fixed plate through a bearing. A U-shaped plate is connected, and an arc-shaped extrusion plate 1 is fixed on the lower surface of the U-shaped plate, and an air nozzle is fixedly installed inside the arc-shaped extrusion plate 1, an air hose is fixed to the exhaust end of the air nozzle, and an isolation ball is fixed to the other end of the air hose, and the air hose and the isolation ball are connected, and a spring sleeve is provided on the outer surface of the air hose, and the two ends of the spring sleeve are respectively fixedly connected to the arc-shaped extrusion plate 1 and the isolation ball, a connecting hose is fixed to the air inlet end of the air nozzle, and an air injection cylinder is fixedly installed inside the fixed plate through an installation hole, and a connecting pipe is fixed to the exhaust end of the air injection cylinder, and the other end of the connecting pipe is fixedly connected to the connecting hose, and a control valve 2 is installed inside the connecting pipe.

[0007] As a preferred long-distance oil and gas pipeline plugging device of the utility model, a rectangular hole is opened on the surface of the fixing plate, the threaded rod is located in the rectangular hole, a sealing gasket is fixed on one side of the surface of the arc extrusion plate close to the conveying pipe, and a fixing sleeve is fixedly installed at the center of the surface of the threaded rod.

[0008] As a preferred long-distance oil and gas pipeline plugging device of the utility model, limiting blocks are fixed on both sides of the L-shaped plate, and sliding grooves adapted to the limiting blocks are opened inside the fixed plate, and the limiting blocks and the fixed plate are slidably connected through the sliding grooves.

[0009] As a preferred long-distance oil and gas pipeline plugging device of the utility model, the upper surface of the U-shaped plate is fixed with symmetrically arranged limit rods, the surface of the fixed plate is provided with movable holes adapted to the limit rods, and the limit rods and the fixed plate are slidably connected through the movable holes.

[0010] As a preferred embodiment of the long-distance oil and gas pipeline plugging device of the utility model, a handle is fixedly mounted on one side of the fixing plate by means of bolts, and a rotating handle is fixed to the top end of the adjusting bolt.

[0011] As a preferred long-distance oil and gas pipeline plugging device of the utility model, an L-shaped tube is fixed to the surface of the connecting pipe and is connected to the connecting pipe, a control valve 1 is installed inside the L-shaped tube, and the L-shaped tube is located below the control valve 2.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up a plugging component, the use of isolation can quickly isolate the leaking pipe section, limit the diffusion range of the leaking liquid, help reduce the pressure in the leaking delivery pipe, and provide a safer environment for subsequent plugging operations. The arc extrusion plate can more easily seal the damaged point, reducing the difficulty and risk of plugging. The steps of isolation first and then plugging can speed up the overall repair process, reduce downtime, reduce economic losses, and further improve the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional view of the structure of the delivery pipe in the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0018] Figure 4 It is a top view of the overall structure of the utility model.

[0019] In the figure: 1. delivery pipe; 2. plugging assembly; 201. fixing plate; 202. L-shaped plate; 203. threaded rod; 204. fixing sleeve; 205. limiting block; 206. handle; 207. adjusting bolt; 208. turning handle; 209. U-shaped plate; 210. arc extrusion plate 1; 211. isolation ball; 212. air hose; 213. spring sleeve; 214. air nozzle; 215. connecting hose; 216. air injection cylinder; 217. connecting pipe; 218. L-shaped pipe; 219. control valve 1; 220. control valve 2; 221. limiting rod; 222. arc extrusion plate 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1-Figure 4 As shown:

[0023] A long-distance oil and gas pipeline plugging device, comprising a plugging assembly 2 arranged on a delivery pipe 1, the plugging assembly 2 comprising a fixed plate 201 arranged above the delivery pipe 1, two L-shaped plates 202 slidably connected to the inside of the fixed plate 201, and a threaded rod 203 rotatably connected to the inside of the fixed plate 201 through a bearing, the L-shaped plate 202 is threadedly connected to the surface of the threaded rod 203 through a threaded hole, and the threaded surfaces on both sides of the threaded rod 203 are designed in opposite structures, and the two groups of L-shaped plates 202 are fixed with arc-shaped extrusion plates 222 on the sides close to each other, and the inside of the fixed plate 201 is threadedly connected with an adjusting bolt 207 through a threaded hole, and the bottom end of the adjusting bolt 207 is rotatably connected to a U-shaped plate 209 through a bearing, and the lower surface of the U-shaped plate 209 is fixed with an arc-shaped extrusion plate 222. A pressure plate 210, an air nozzle 214 is fixedly installed inside the arc-shaped extrusion plate 210, an air hose 212 is fixed to the exhaust end of the air nozzle 214, an isolation ball 211 is fixed to the other end of the air hose 212, and the air hose 212 and the isolation ball 211 are connected, a spring sleeve 213 is sleeved on the outer surface of the air hose 212, and the two ends of the spring sleeve 213 are respectively fixedly connected to the arc-shaped extrusion plate 210 and the isolation ball 211, a connecting hose 215 is fixed to the air inlet end of the air nozzle 214, an air injection cylinder 216 is fixedly installed inside the fixed plate 201 through the mounting hole, a connecting pipe 217 is fixed to the exhaust end of the air injection cylinder 216, the other end of the connecting pipe 217 is fixedly connected to the connecting hose 215, and a control valve 220 is installed inside the connecting pipe 217;

[0024] A rectangular hole is opened on the surface of the fixing plate 201, and the threaded rod 203 is located in the rectangular hole. A sealing gasket is fixed on the side of the surface of the arc extrusion plate 210 close to the conveying pipe 1, and a fixing sleeve 204 is fixedly installed at the center of the surface of the threaded rod 203.

[0025] In this embodiment: when the long-distance oil and gas pipeline plugging device is in use, when a large amount of liquid leaks due to a damaged hole on the surface of the delivery pipe 1, the spring sleeve 213 is driven along the damaged hole to drive the isolation ball 211 into the interior of the delivery pipe 1. Since the spring sleeve 213 utilizes the elastic characteristics of the spring, the spring sleeve 213 has good elasticity and toughness, can be compressed and deformed when subjected to pressure, and then quickly recover to its original shape after the pressure is released, and can better adapt to the curvature of the pipeline, so that the spring sleeve 213 can be more stably pushed into the interior of the delivery pipe 1. At this time, the push rod (not shown in the figure) of the gas injection cylinder 216 is pulled back and forth to press the gas generated by the gas injection cylinder 216, and is transported to the connecting pipe 217, and then the connecting pipe 217 is discharged into the connecting hose 215, so that the gas inside the connecting hose 215 passes through the gas nozzle 214 and the gas hose 212 in turn and is discharged into the isolation ball 211. As the isolation ball 211 is continuously inflated, the isolation ball 211 expands and fits with the inner wall of the delivery pipe 1, thereby preliminarily blocking the liquid inside the delivery pipe 1, and then the control valve 220 is rotated to block the gas to prevent gas leakage, and the threaded rod 203 is driven to rotate by rotating the fixing sleeve 204. The rotation of the threaded rod 203 can be controlled by the fixing sleeve 204. The friction between the hand and the threaded rod 203 can be increased by the fixing sleeve 204, and the rotation effect of the threaded rod 203 is better. The two groups of L-shaped plates 202 are driven to approach each other. As the L-shaped plates 202 move, the arc-shaped extrusion plate 222 is driven to move, and the delivery pipe 1 is clamped and fixed by the arc-shaped extrusion plate 222. Since the arc-shaped extrusion plate 222 is designed with an arc surface, the upper and lower limit effects can be achieved for this device. In the process of clamping the arc-shaped extrusion plate 222, the spring sleeve 213 is vertically corresponding to the damaged opening, so that the arc-shaped extrusion plate 210 is better and closely fitted with the delivery pipe 1 in the later stage. By rotating the rotating handle 208, the adjusting bolt 207 is driven to rotate. The rotating handle 208 can better rotate the adjusting bolt 207. As the adjusting bolt 207 rotates, the arc-shaped extrusion plate 210 is driven to rotate. 210 moves downward, and then the arc-shaped extrusion plate 210 continues to move downward to seal the damaged opening of the conveying pipe 1. Since a sealing gasket is provided on the lower surface of the arc-shaped extrusion plate 210, the sealing effect can be improved. Therefore, through this operation, before sealing, the isolation ball 211 can be used to quickly isolate the leaking pipe part, limit the diffusion range of the leaking liquid, and help reduce the pressure in the leaking conveying pipe 1, providing a safer environment for subsequent sealing operations. The arc-shaped extrusion plate 210 can more easily seal the damaged point, reducing the difficulty and risk of sealing. The steps of isolating first and then sealing can speed up the overall repair process, reduce production stoppage time, reduce economic losses, and further improve the use effect of the device.

[0026] Going further;

[0027] In an optional embodiment, the limiting blocks 205 are fixed on both sides of the L-shaped plate 202, and a sliding groove adapted to the limiting blocks 205 is opened inside the fixed plate 201, and the limiting blocks 205 and the fixed plate 201 are slidably connected through the sliding groove.

[0028] In this embodiment: the L-shaped plate 202 drives the limiting block 205 to slide in the sliding groove, and the limiting block 205 can limit the L-shaped plate 202, so that the L-shaped plate 202 is more stable during the movement.

[0029] Going further;

[0030] In an optional embodiment, the upper surface of the U-shaped plate 209 is fixed with symmetrically arranged limiting rods 221, and the surface of the fixed plate 201 is provided with movable holes adapted to the limiting rods 221, and the limiting rods 221 and the fixed plate 201 are slidably connected through the movable holes.

[0031] In this embodiment, the limiting rod 221 slides in the moving hole provided in the fixing plate 201, so that the limiting rod 221 can limit the arc-shaped extrusion plate 210, so that the arc-shaped extrusion plate 210 is more stable during the movement.

[0032] Going further;

[0033] In an optional embodiment, a handle 206 is fixedly mounted on one side of the fixing plate 201 by means of bolts, and a rotating handle 208 is fixed to the top end of the adjusting bolt 207 .

[0034] In this embodiment: the handle 206 is then held by hand, so as to facilitate the hand-held fixation of the fixing plate 201 and provide convenience for the subsequent rotation of the threaded rod 203.

[0035] Going further;

[0036] In an optional embodiment, an L-shaped tube 218 is fixed to the surface of the connecting tube 217 and is connected to the connecting tube 217 . A control valve 1 219 is installed inside the L-shaped tube 218 . The L-shaped tube 218 is located below the control valve 2 220 .

[0037] In this embodiment: after the blocking is completed, the control valve 219 can be rotated according to actual use requirements to release the blockage of the L-shaped tube 218. At this time, the gas inside the isolation ball 211 is discharged through the L-shaped tube 218, so that the isolation ball 211 releases the blockage of the delivery pipe 1, which will not affect the re-delivery of the liquid, thereby further improving the use effect of the device.

[0038] Working principle and use process of the utility model: when the long-distance oil and gas pipeline plugging device is in use, when a large amount of liquid leaks due to a damaged opening on the surface of the delivery pipe 1, the spring sleeve 213 is driven along the damaged opening to drive the isolation ball 211 deep into the delivery pipe 1. Since the spring sleeve 213 utilizes the elastic characteristics of the spring, the spring sleeve 213 has good elasticity and toughness, can be compressed and deformed when subjected to pressure, and then quickly recover to its original shape after the pressure is released, and can better adapt to the curvature of the pipeline, so that the spring sleeve 213 can be more stably pushed into the delivery pipe 1. At this time, the push rod (not shown in the figure) of the gas injection cylinder 216 is pulled back and forth to press the gas generated by the gas injection cylinder 216, and is transported to the connecting pipe 217, and then through the connecting pipe 2 17 is discharged into the connecting hose 215, so that the gas inside the connecting hose 215 passes through the gas nozzle 214 and the gas hose 212 in turn and is discharged into the isolation ball 211. As the isolation ball 211 is continuously inflated, the isolation ball 211 expands and fits with the inner wall of the delivery pipe 1, thereby preliminarily blocking the liquid inside the delivery pipe 1, and then the control valve 220 is rotated to block the gas to prevent gas leakage, and then the handle 206 is held and the fixed sleeve 204 is rotated to drive the threaded rod 203 to rotate. The fixed sleeve 204 can control the rotation of the threaded rod 203, and the fixed sleeve 204 can increase the friction between the hand and the threaded rod 203, which has a better rotation effect on the threaded rod 203. The two groups of L-shaped plates 202 are driven to approach each other, and the L-shaped plate 202 drives the limit block 205 to slide in the sliding groove. The limit block 205 can limit the L-shaped plate 202, making the L-shaped plate 202 more stable during movement. As the L-shaped plate 202 moves, it drives the arc-shaped extrusion plate 222 to move, and the conveying pipe 1 is clamped and fixed by the arc-shaped extrusion plate 222. Since the arc-shaped extrusion plate 222 is designed with an arc surface, the device can achieve an upper and lower limit effect. In the process of clamping the arc-shaped extrusion plate 222, the spring sleeve 213 is vertically corresponding to the broken mouth, so that the arc-shaped extrusion plate 210 is better and closely fitted with the conveying pipe 1 in the later stage, and the adjusting bolt 207 is driven by rotating the rotating handle 208. The adjusting screw 207 is rotated, and the adjusting screw 207 is rotated better. As the adjusting screw 207 is rotated, the arc extrusion plate 210 is driven to move downward, and the limiting rod 221 is driven to slide in the moving hole provided in the fixing plate 201, so that the arc extrusion plate 210 can be limited by the limiting rod 221, so that the arc extrusion plate 210 is more stable during the movement process. Then the arc extrusion plate 210 is continuously moved downward to seal the damaged opening of the conveying pipe 1. Since a sealing gasket is provided on the lower surface of the arc extrusion plate 210, the sealing effect can be improved. Therefore, through this operation, before sealing, the isolation ball 211 can be used to quickly isolate the leaking pipe part to limit the diffusion range of the leaked liquid.It can help reduce the pressure in the leaking delivery pipe 1, and provide a safer environment for subsequent plugging operations. The arc-shaped extrusion plate 210 can more easily plug the damaged point, reducing the difficulty and risk of plugging. The steps of isolation first and then plugging can speed up the overall repair process, reduce downtime, reduce economic losses, and further improve the use effect of the device. After the plugging is completed, the control valve 219 can be turned according to actual use needs to release the blockage of the L-shaped tube 218. At this time, the gas inside the isolation ball 211 is discharged through the L-shaped tube 218, so that the isolation ball 211 releases the blockage of the delivery pipe 1, which will not affect the re-transmission of the liquid, and further improve the use effect of the device.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A long-distance oil and gas pipeline plugging device, characterized in that: The invention comprises a plugging assembly (2) arranged on a conveying pipe (1), wherein the plugging assembly (2) comprises a fixing plate (201) arranged above the conveying pipe (1), two L-shaped plates (202) slidably connected to the inside of the fixing plate (201), and a threaded rod (203) rotatably connected to the inside of the fixing plate (201) via a bearing, wherein the L-shaped plates (202) are threadedly connected to the surface of the threaded rod (203) via threaded holes, and the threaded surfaces on both sides of the threaded rod (203) are designed in opposite structures, and arc-shaped extrusion plates (222) are fixed on the sides of the two groups of L-shaped plates (202) close to each other, and an adjusting bolt (207) is threadedly connected to the inside of the fixing plate (201) via a threaded hole, and the bottom end of the adjusting bolt (207) is rotatably connected to a U-shaped plate (209) via a bearing, and an arc-shaped extrusion plate (210) is fixed to the lower surface of the U-shaped plate (209), and the arc-shaped An air nozzle (214) is fixedly installed inside the first extrusion plate (210), an air hose (212) is fixed to the exhaust end of the air nozzle (214), an isolation ball (211) is fixed to the other end of the air hose (212), and the air hose (212) and the isolation ball (211) are connected, a spring sleeve (213) is sleeved on the outer surface of the air hose (212), and the two ends of the spring sleeve (213) are respectively fixedly connected to the arc-shaped extrusion plate (210) and the isolation ball (211), a connecting hose (215) is fixed to the air inlet end of the air nozzle (214), an air injection cylinder (216) is fixedly installed inside the fixed plate (201) through a mounting hole, a connecting pipe (217) is fixed to the exhaust end of the air injection cylinder (216), the other end of the connecting pipe (217) is fixedly connected to the connecting hose (215), and a control valve 2 (220) is installed inside the connecting pipe (217).

2. A long-distance oil and gas pipeline plugging device according to claim 1, characterized in that: A rectangular hole is provided on the surface of the fixing plate (201), the threaded rod (203) is located in the rectangular hole, a sealing gasket is fixed on the side of the surface of the arc-shaped extrusion plate (210) close to the conveying pipe (1), and a fixing sleeve (204) is fixedly installed at the center of the surface of the threaded rod (203).

3. A long-distance oil and gas pipeline plugging device according to claim 2, characterized in that: Limiting blocks (205) are fixed on both sides of the L-shaped plate (202), and a sliding groove adapted to the limiting blocks (205) is provided inside the fixing plate (201), and the limiting blocks (205) and the fixing plate (201) are slidably connected via the sliding groove.

4. A long-distance oil and gas pipeline plugging device according to claim 3, characterized in that: The upper surface of the U-shaped plate (209) is fixed with symmetrically arranged limiting rods (221), and the surface of the fixing plate (201) is provided with moving holes matched with the limiting rods (221), and the limiting rods (221) and the fixing plate (201) are slidably connected through the moving holes.

5. A long-distance oil and gas pipeline plugging device according to claim 4, characterized in that: A handle (206) is fixedly mounted on one side of the fixing plate (201) by means of bolts, and a rotating handle (208) is fixed on the top end of the adjusting bolt (207).

6. A long-distance oil and gas pipeline plugging device according to claim 5, characterized in that: An L-shaped tube (218) is fixed on the surface of the connecting tube (217) and is in communication with the connecting tube (217). A control valve 1 (219) is installed inside the L-shaped tube (218). The L-shaped tube (218) is located below the control valve 2 (220).

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