A leak detection and early warning device for oil and gas pipeline connections

Abstract

This utility model belongs to the field of oil and gas transportation technology, specifically relating to a leak detection and early warning device for oil and gas pipeline connections. It includes an oil and gas pipeline with a flange fitted to its outer wall. A leak-proof device is installed at the connection between the oil and gas pipeline and the connecting pipe. The outer wall of the leak-proof device is fixedly connected to a display screen, and the leak-proof device includes a connecting cavity. Through the leak-proof device, any leaking oil or gas that may occur at the connection between the oil and gas pipeline and the connecting pipe enters a collection chamber, expands to a certain volume, and pushes a sliding block. When the fixed block presses against the telescopic rod, the return spring is compressed and contracts to the inner wall of the clearance groove. Simultaneously, the connecting block is forced forward, and the telescopic spring resets the connecting block and its components. The forward force of the connecting block eventually presses against the sensor, which then transmits the leak information to the display screen.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas transportation technology, specifically to a leak detection and early warning device for oil and gas pipeline connections. Background Technology

[0002] With the increase in the number of oil and gas pipelines built in my country over the past decade, the quality of pipeline construction has also improved significantly. In particular, the continuous progress in the construction of pipelines for easily condensed, high-viscosity crude oil has greatly promoted the development of alternating hot and cold oil transportation. In this process, the problem of long-distance crude oil transportation has also been gradually improved.

[0003] Currently, while existing technologies provide good sealing at the joints of oil and gas pipelines, the service life of these joints gradually decreases under the influence of the external environment. Cleaning up oil and gas leaks at these joints not only wastes resources but may also lead to explosions and safety accidents. Therefore, we propose a leak detection and early warning device for oil and gas pipeline joints. Summary of the Invention

[0004] The main objective of this invention is to provide a leak detection and early warning device for oil and gas pipeline connections, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a leak detection and early warning device for oil and gas pipeline connections, comprising an oil and gas pipeline, a flange fitted onto the outer wall of the oil and gas pipeline, a fixing screw rotatably connected to the surface of the flange, the fixing screw being threadedly connected to a nut, a connecting pipe fixedly connected to the top of the oil and gas pipeline, and a leak-proof device provided at the connection between the oil and gas pipeline and the connecting pipe, the outer wall of the leak-proof device being fixedly connected to a display screen, the leak-proof device comprising: A connecting cavity, wherein the connecting cavity is formed on the inner wall of the leak-proof device; A collection bladder is fixedly connected to the inner wall of the leak-proof device, and a sliding block is provided on one side of the collection bladder; A fixing block is fixedly connected to the side of the fixing block away from the collection bladder; The connecting block is slidably connected to the inner wall of the leak-proof device, and the outer wall of the connecting block is provided with a clearance groove.

[0006] Preferably, the outer walls at both ends of the oil and gas pipeline are provided with threaded sections, and the pipeline is connected by threaded connection.

[0007] Preferably, a reset spring is fixedly connected to the inner wall of the relief groove. When the reset spring is compressed and retracted to the inner wall of the relief groove, the reset is completed after the external force restriction is released.

[0008] Preferably, the end of the return spring away from the relief groove is fixedly connected to the telescopic rod, and the telescopic rod is moved and stretched by the return spring.

[0009] Preferably, the outer wall of the connecting block is fixedly connected to the telescopic spring, and the end of the telescopic spring away from the connecting block is fixedly connected to the inner wall of the leak-proof device. The connecting block moves forward under force, and the telescopic spring realizes the reset of the connecting block and its components.

[0010] Preferably, the sensor is fixedly connected to the inner wall of the leak prevention device. When the connecting block is forced forward until it squeezes and collides with the sensor, the sensor transmits the leakage information to the display screen.

[0011] This utility model provides a leak detection and early warning device for oil and gas pipeline connections. It has the following beneficial effects: (1) The oil and gas pipeline connection leakage detection and early warning device, through the set leakage prevention device, the oil and gas that may be leaked at the connection between the oil and gas pipeline and the connecting pipe enters the collection bag, expands to a certain volume and pushes the sliding block to move. The movement of the sliding block drives the movement of the fixed block. When the fixed block squeezes the telescopic rod, the reset spring is squeezed and contracted to the inner wall of the relief groove. At the same time, the connecting block is forced to move forward. The telescopic spring realizes the reset of the connecting block and its components. The connecting block is forced forward until it squeezes the collision sensor. The sensor transmits the leakage information to the display screen so that the staff can know and repair it as soon as possible.

[0012] (2) The oil and gas pipeline connection leakage detection and early warning device is provided with a flange. The surface of the flange is rotatably connected with a fixing screw. The fixing screw and nut are threadedly connected. With the cooperation of the fixing screw and nut threaded connection, the flanges on both sides fix and lock the oil and gas pipeline to the leakage prevention device, ensuring the stability of the leakage prevention device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the leak prevention device of this utility model; Figure 3 This is a schematic diagram of the internal structure of the connecting block of this utility model.

[0015] Explanation of icon numbers: 1. Oil and gas pipeline; 101. Threaded section; 2. Flange; 21. Fixing screw; 22. Nut; 3. Connecting pipe; 4. Leakage prevention device; 401. Connecting cavity; 41. Collection bladder; 42. Sliding block; 43. Fixing block; 44. Connecting block; 441. Relief groove; 45. Return spring; 46. Telescopic rod; 47. Telescopic spring; 48. Sensor; 5. Display screen.

[0016] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-3 This utility model proposes a leak detection and early warning device for oil and gas pipeline connections, including an oil and gas pipeline 1. Threaded sections 101 are provided on the outer walls of both ends of the oil and gas pipeline 1, and the pipeline is connected by threaded connections. A flange 2 is fitted onto the outer wall of the oil and gas pipeline 1, and a fixing screw 21 is rotatably connected to the surface of the flange 2. The fixing screw 21 is threadedly connected to a nut 22. A connecting pipe 3 is fixedly connected to the top of the oil and gas pipeline 1. A leak prevention device 4 is provided at the connection between the oil and gas pipeline 1 and the connecting pipe 3. The outer wall of the leak prevention device 4 is fixedly connected to a display screen 5. The leak prevention device 4 includes a connecting cavity 401.

[0019] In this embodiment of the invention, in order to achieve the early warning effect of the leak prevention device 4 and accelerate the efficiency of leak detection and early warning at the connection of the oil and gas pipeline 1, specifically, a connecting cavity 401 is opened on the inner wall of the leak prevention device 4, and a connecting pipe 3 is placed and fixed in the connecting cavity 401. The collecting bladder 41 is fixedly connected to the inner wall of the leak prevention device 4, and a sliding block 42 is provided on one side of the collecting bladder 41. When leaked oil and gas enter the collecting bladder 41, it expands to a certain volume and pushes the sliding block 42 to move. A fixing block 43 is fixedly connected to the side away from the collecting bladder 41. The movement of the sliding block 42 drives the movement of the fixing block 43. The connecting block 44 is slidably connected to the inner wall of the leak prevention device 4, and a clearance groove 441 is opened on the outer wall of the connecting block 44. A return spring 45 is fixedly connected to the inner wall of 41. When the return spring 45 is compressed and contracted to the inner wall of the relief groove 441, the reset is completed after the external force restriction is released. The end of the return spring 45 away from the relief groove 441 is fixedly connected to the telescopic rod 46. The telescopic rod 46 is moved and stretched by the return spring 45. The outer wall of the connecting block 44 is fixedly connected to the telescopic spring 47, and the end of the telescopic spring 47 away from the connecting block 44 is fixedly connected to the inner wall of the anti-leakage device 4. The connecting block 44 moves forward under force. The reset of the connecting block 44 and its components is realized by the telescopic spring 47. The sensor 48 is fixedly connected to the inner wall of the anti-leakage device 4. When the connecting block 44 is compressed and collides with the sensor 48, the sensor 48 transmits the leakage information to the display screen 5 for display.

[0020] Furthermore, in order to reinforce the oil and gas pipeline 1 and the connecting pipe 3, and to improve the stability of the leak detection and early warning device at the connection of the oil and gas pipeline 1, specifically, the surface of the flange 2 is rotatably connected with a fixing screw 21, which is threadedly connected to a nut 22. With the cooperation of the fixing screw 21 and the nut 22 threaded connection, the flanges on both sides fix and lock the oil and gas pipeline 1 and the leak prevention device 4.

[0021] In this utility model, during use, any leaking oil or gas that may occur at the connection between the oil and gas pipeline 1 and the connecting pipe 3 enters the collection bag 41, expands to a certain volume, and pushes the sliding block 42 to move. The movement of the sliding block 42 drives the movement of the fixed block 43. When the fixed block 43 presses the telescopic rod 46, the reset spring 45 is compressed and contracts to the inner wall of the relief groove 441. After the external force restriction is released, the reset is completed. At the same time as the compression, the connecting block 44 is forced to move forward. The reset of the connecting block 44 and its components is achieved by the telescopic spring 47. The connecting block 44 is forced forward until it presses the collision sensor 48. The sensor 48 transmits the leakage information to the display screen 5 for display.

[0022] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A leak detection and early warning device for oil and gas pipeline connections, comprising an oil and gas pipeline (1), characterized in that: A flange (2) is fitted onto the outer wall of the oil and gas pipeline (1). A fixing screw (21) is rotatably connected to the surface of the flange (2). The fixing screw (21) is threadedly connected to a nut (22). A connecting pipe (3) is fixedly connected above the oil and gas pipeline (1). A leak-proof device (4) is provided at the connection between the oil and gas pipeline (1) and the connecting pipe (3). The outer wall of the leak-proof device (4) is fixedly connected to the display screen (5). The leak-proof device (4) includes: A connecting cavity (401) is formed on the inner wall of the leak-proof device (4); Collection bag (41), the collection bag (41) is fixedly connected to the inner wall of the leak prevention device (4), and a sliding block (42) is provided on one side of the collection bag (41). A fixing block (43) is fixedly connected to the side of the collection bag (41) away from the fixing block (43). and connecting block (44), the connecting block (44) is slidably connected in the inner wall of the leak prevention device (4), and the outer wall of the connecting block (44) is provided with a relief groove (441).

2. The oil and gas pipeline connection leakage detection and early warning device according to claim 1, characterized in that: The oil and gas pipeline (1) has threaded sections (101) on the outer walls at both ends.

3. The oil and gas pipeline connection leakage detection and early warning device according to claim 1, characterized in that: A return spring (45) is fixedly connected to the inner wall of the relief groove (441).

4. The oil and gas pipeline connection leakage detection and early warning device according to claim 3, characterized in that: The end of the return spring (45) away from the relief groove (441) is fixedly connected to the telescopic rod (46).

5. The oil and gas pipeline connection leakage detection and early warning device according to claim 1, characterized in that: The outer wall of the connecting block (44) is fixedly connected to the telescopic spring (47), and the end of the telescopic spring (47) away from the connecting block (44) is fixedly connected to the inner wall of the anti-leakage device (4).

6. The oil and gas pipeline connection leakage detection and early warning device according to claim 1, characterized in that: A sensor (48) is fixedly connected to the inner wall of the leak prevention device (4).

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