An emergency sealing device for oil pipeline leaks

Abstract

This utility model discloses an emergency sealing device for oil pipeline leaks, including a pipeline body. A sealing structure is provided on the outside of the pipeline body. The sealing structure includes two upper connectors and two lower connectors symmetrically arranged on the outside of the pipeline body. A sealing portion is provided on the top of each of the two upper connectors. The sealing portion and the upper connectors are an integral structure. A groove is formed inside the sealing portion, and a sealing component is disposed within the groove. This utility model relates to the field of oil pipeline technology. This emergency sealing device for oil pipeline leaks, by setting a sealing component, achieves rapid sealing of the leak, effectively shortening the sealing time and improving the overall efficiency of emergency rescue. Furthermore, through a multi-seal mechanism combining a sealing ring and an airbag, the device can be applied to leaks of different shapes, making it highly practical.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline technology, specifically an emergency sealing device for oil pipeline leaks. Background Technology

[0002] Petroleum and petroleum vapors are highly flammable and explosive. Once a pipeline leaks, oil will immediately flow out. When the oil vapors reach a certain concentration in the air, they can ignite violent fires or explosions upon contact with open flames, static electricity, or even sparks from metal impacts, seriously threatening the lives of personnel on site, surrounding communities, and emergency response teams. The primary purpose of emergency containment is to prevent the continued leakage of oil and avoid further escalation of the ecological disaster.

[0003] When an oil pipeline leaks, especially under high pressure, directly inserting a plug often presents significant challenges. Firstly, the insertion and removal of the plug under high pressure is extremely difficult, requiring precise operation and robust equipment. Secondly, the plug's structure often cannot fully accommodate various irregular damage surfaces, necessitating repeated adjustments to its position and angle for effective sealing. However, frequent adjustments not only significantly prolong the treatment time but also increase the leakage volume and duration of risk, severely compromising the reliability and timeliness of the overall sealing process.

[0004] Therefore, this utility model provides an emergency sealing device for leaks in oil transportation pipelines, which solves the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an emergency sealing device for leaks in oil pipelines, solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an emergency sealing device for leaking oil pipelines, comprising a pipeline body, a sealing structure provided on the outside of the pipeline body, the sealing structure comprising two upper connectors and two lower connectors symmetrically arranged on the outside of the pipeline body, a sealing portion provided on the top of the two upper connectors, the sealing portion and the upper connectors being an integral structure, a groove being provided inside the sealing portion, a sealing assembly being provided in the groove, the sealing assembly comprising a hydraulic piston cylinder fixedly installed on the top of the sealing portion, the bottom of the hydraulic piston cylinder extending into the groove and the movable end of the bottom being fixedly connected to an arc-shaped sealing plate, a first limiting rod being fixedly connected to the top of the arc-shaped sealing plate, the first limiting rod being slidably connected to the sealing portion, and a sealing ring being fixedly connected to the bottom of the arc-shaped sealing plate.

[0007] Preferably, an airbag is fixedly connected inside the sealing ring, and an air outlet pipe and an air inlet pipe are respectively provided on the top of the airbag, and the bottom of the air outlet pipe and the air inlet pipe are connected to the inside of the airbag.

[0008] Preferably, the top of both the air outlet pipe and the air inlet pipe is penetrated by an arc-shaped sealing plate, and an air valve is fixedly connected to the port of both the air outlet pipe and the air inlet pipe.

[0009] Preferably, the upper and lower connectors are fixed at one side by hinge, and at the other side by fastening bolts. The two upper connectors are fixedly connected by a first connecting rod, and the two lower connectors are fixedly connected by a second connecting rod.

[0010] Preferably, two sets of clamping assemblies are provided on the outer side of both the upper and lower connectors. Each clamping assembly includes a screw threadedly connected to the outer side of the upper connector, a knob fixedly connected to the top of the screw, and an arc-shaped clamping piece fixedly and rotatably connected to the bottom of the screw.

[0011] Preferably, a second limiting rod is fixedly connected to the top of the arc-shaped clamping piece, the second limiting rod and the upper connecting piece are slidably connected, and an elastic rubber sheet is fixedly connected to the bottom of the arc-shaped clamping piece, the elastic rubber sheet having anti-slip texture.

[0012] Beneficial effects

[0013] This invention provides an emergency sealing device for leaks in oil pipelines. Compared with existing technologies, it has the following advantages:

[0014] (1) An emergency sealing device for oil pipeline leaks, which achieves rapid sealing of leaks by setting sealing components, effectively shortening the sealing time. Through the special design of the sealing part, it can adapt to leaks of different shapes and has high practicality. In use, the hydraulic piston cylinder drives the arc-shaped sealing plate to move downward until the sealing ring and the surface of the pipeline body are in contact. The sealing ring is made of elastic material, which deforms during the pressure process and forms a preliminary sealing space with the pipe wall. Subsequently, air is inflated into the airbag through the air inlet pipe, which expands and further fills the sealing area to enhance its sealing effect.

[0015] (2) An emergency plugging device for oil pipeline leaks, by setting up an upper connector, a clamping assembly, and a lower connector, allows the device to flexibly adapt to pipeline bodies of various diameters, significantly improving the applicability of plugging operations. During operation, the upper connector is first flipped open, and the plugging device is placed outside the pipeline. Then, the fastening bolts are tightened to make the device surround the outside of the pipeline body. Afterwards, by rotating four knobs and screws, four arc-shaped clamping plates are pushed inward until the elastic rubber sheets on their surfaces are completely in contact with the outer wall of the pipeline. The elastic rubber sheets are made of deformable elastic rubber material, which can deform during clamping and fit tightly against the pipe wall, effectively enhancing the connection stability of the connection points. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sealing structure installation of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall sealing structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the sealing structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the sealing structure of this utility model.

[0020] Figure 5 This is the utility model Figure 4 A magnified view of a portion of the image.

[0021] In the diagram: 1. Conveying pipeline body; 2. Upper connector; 3. Sealing part; 4. Sealing assembly; 5. Clamping assembly; 6. First connecting rod; 7. Lower connector; 8. Second connecting rod; 9. Fastening bolt; 401. Hydraulic piston cylinder; 402. Arc-shaped sealing plate; 403. First limiting rod; 404. Sealing ring; 405. Airbag; 406. Air outlet pipe; 407. Air inlet pipe; 501. Screw; 502. Knob; 503. Second limiting rod; 504. Arc-shaped clamping piece; 505. Elastic rubber sheet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please see Figure 1-3 An emergency sealing device for leaking oil pipelines includes a pipeline body 1. A sealing structure is provided on the outside of the pipeline body 1. The sealing structure includes two upper connectors 2 and two lower connectors 7 symmetrically arranged on the outside of the pipeline body 1. A sealing part 3 is provided on the top of the two upper connectors 2. The sealing part 3 and the upper connectors 2 are an integral structure. A groove is provided inside the sealing part 3. A sealing component 4 is provided in the groove. The sealing component 4 includes a hydraulic piston cylinder 401 fixedly installed on the top of the sealing part 3. The bottom of the hydraulic piston cylinder 401 extends into the groove and the movable end of the bottom is fixedly connected to an arc-shaped sealing plate 402. A first limiting rod 403 is fixedly connected to the top of the arc-shaped sealing plate 402. The first limiting rod 403 and the sealing part 3 are slidably connected. A sealing ring 404 is fixedly connected to the bottom of the arc-shaped sealing plate 402.

[0025] An airbag 405 is fixedly connected inside the sealing ring 404. An air outlet pipe 406 and an air inlet pipe 407 are respectively provided on the top of the airbag 405. The bottom of the air outlet pipe 406 and the air inlet pipe 407 are connected to the inside of the airbag 405.

[0026] The top of both the air outlet pipe 406 and the air inlet pipe 407 is penetrated by the arc-shaped sealing plate 402, and air valves are fixedly connected to the ports of both the air outlet pipe 406 and the air inlet pipe 407.

[0027] In this embodiment, by setting the sealing component 4, the leakage outlet is quickly sealed, which can effectively shorten the sealing time. Through the special design of the sealing part 3, it can adapt to leakage outlets of different shapes and has high practicality.

[0028] During operation, an arc-shaped sealing plate 402 and a sealing ring 404 that can cover the leak are selected and fixed to the movable end of the hydraulic piston cylinder 401. Then, the sealing part 3 is aligned with the approximate area of ​​the leak, and the hydraulic piston cylinder 401 is controlled to drive the arc-shaped sealing plate 402 downward until the sealing ring 404 and the surface of the conveying pipeline body 1 are in contact. The sealing ring 404 deforms during the compression process of the arc-shaped sealing plate 402, forming a preliminary sealing space with the pipe wall, thereby reducing oil leakage. Afterward, the air valve at the top of the air inlet pipe 407 is opened, and air is inflated into the air bag 405 through the air inlet pipe 407, causing the air bag 405 to expand and further fill the sealing area, enhancing its sealing effect. The hydraulic piston cylinder 401 and the air valve are both controlled by PLC, which can achieve precise control.

[0029] Example 2:

[0030] Please see Figure 2-5This embodiment provides a technical solution based on embodiment one: the connection between the upper connector 2 and the lower connector 7 on one side is fixed by hinge, the connection between the upper connector 2 and the lower connector 7 on the other side is fixed by fastening bolt 9, the two upper connectors 2 are fixedly connected by the first connecting rod 6, and the two lower connectors 7 are fixedly connected by the second connecting rod 8.

[0031] Two sets of clamping assemblies 5 are provided on the outer side of both the upper connector 2 and the lower connector 7. The clamping assembly 5 includes a screw 501 that is threadedly connected to the outer side of the upper connector 2. A knob 502 is fixedly connected to the top of the screw 501, and an arc-shaped clamping piece 504 is fixedly and rotatably connected to the bottom of the screw 501.

[0032] The top of the arc-shaped clamping piece 504 is fixedly connected to a second limiting rod 503, which is slidably connected to the upper connecting piece 2. The bottom of the arc-shaped clamping piece 504 is fixedly connected to an elastic rubber sheet 505, which has anti-slip texture.

[0033] In this embodiment, by providing the upper connector 2, the clamping assembly 5, and the lower connector 7, the device can be flexibly adapted to various pipe diameter specifications, significantly improving the applicability of sealing operations.

[0034] During operation, first flip and open the upper connector 2, and set the sealing device outside the conveying pipe body 1. Then tighten the fastening bolt 9 so that the device surrounds the outside of the conveying pipe body 1. After that, by rotating the four knobs 502 and the screw 501, push the four arc-shaped clamping plates 504 inward until the elastic rubber plate 505 on its surface is completely in contact with the outer wall of the pipe. The elastic rubber plate 505 can deform during the clamping process and fit tightly with the pipe wall, effectively enhancing the connection stability of the connection part. At the same time, the inner side of the elastic rubber plate 505 is provided with anti-slip texture, which can enhance the connection stability of the connection part by increasing friction.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An emergency plugging device for a leak in a petroleum transport pipeline comprising a transport pipeline body (1), characterized in that: The outer side of the conveying pipeline body (1) is provided with a sealing structure. The sealing structure includes two upper connectors (2) and two lower connectors (7) symmetrically arranged on the outer side of the conveying pipeline body (1). The top of the two upper connectors (2) is provided with a sealing part (3). The sealing part (3) and the upper connectors (2) are an integral structure. The inside of the sealing part (3) is provided with a groove. The groove is provided with a sealing assembly (4). The sealing assembly (4) includes a hydraulic piston cylinder (401) fixedly installed on the top of the sealing part (3). The bottom of the hydraulic piston cylinder (401) extends into the groove and the movable end of the bottom is fixedly connected to an arc-shaped sealing plate (402). The top of the arc-shaped sealing plate (402) is fixedly connected to a first limiting rod (403). The first limiting rod (403) and the sealing part (3) are slidably connected. The bottom of the arc-shaped sealing plate (402) is fixedly connected to a sealing ring (404).

2. The emergency plugging device for leakage of oil transportation pipeline according to claim 1, characterized in that: An airbag (405) is fixedly connected inside the sealing ring (404). An air outlet pipe (406) and an air inlet pipe (407) are respectively provided on the top of the airbag (405). The bottom of the air outlet pipe (406) and the air inlet pipe (407) are connected to the inside of the airbag (405).

3. The emergency plugging device for leakage of oil transportation pipeline according to claim 2, characterized in that: The top of both the air outlet pipe (406) and the air inlet pipe (407) is penetrated by an arc-shaped sealing plate (402), and an air valve is fixedly connected to the port of both the air outlet pipe (406) and the air inlet pipe (407).

4. The emergency plugging device for leakage of oil transportation pipeline according to claim 1, characterized in that: The upper connector (2) and the lower connector (7) are connected on one side by hinge, and the upper connector (2) and the lower connector (7) are connected on the other side by fastening bolts (9). The two upper connectors (2) are connected by a first connecting rod (6), and the two lower connectors (7) are connected by a second connecting rod (8).

5. The emergency plugging device for leakage of oil transportation pipeline according to claim 1, characterized in that: Two sets of clamping assemblies (5) are provided on the outer side of the upper connector (2) and the lower connector (7). The clamping assembly (5) includes a screw (501) threadedly connected to the outer side of the upper connector (2). A knob (502) is fixedly connected to the top of the screw (501), and an arc-shaped clamping piece (504) is fixedly and rotatably connected to the bottom of the screw (501).

6. The emergency plugging device for leakage of oil transportation pipeline according to claim 5, characterized in that: The top of the arc-shaped clamping piece (504) is fixedly connected to a second limiting rod (503), the second limiting rod (503) and the upper connecting piece (2) are slidably connected, and the bottom of the arc-shaped clamping piece (504) is fixedly connected to an elastic rubber sheet (505), the elastic rubber sheet (505) is provided with anti-slip texture.

Images