A leakage monitoring and alarm device for long-distance pipeline connections

Abstract

This invention provides a leak monitoring and alarm device for long-distance pipeline connections, belonging to the field of oil and gas transportation technology. It includes a chamber assembly, a detection assembly, a restraining assembly, a positioning component, and a connector. The detection assembly is located on top of the chamber assembly. The restraining assembly is used to fix the detection assembly to the chamber assembly, and the positioning component is located at the connection between the restraining assembly and the chamber assembly. The chamber assembly includes an upper chamber and a lower chamber. An arc-shaped notch is provided at the center of the bottom of the upper chamber and at the center of the top of the lower chamber. The bottom of the upper chamber and the top of the lower chamber are connected. The connector is located inside the chamber assembly. This device can effectively fix the pressure sensor, reduce sensor loosening caused by vibration, thereby improving the accuracy and reliability of oil and gas leak detection and ensuring the safe and efficient operation of the oil and gas pipeline system.

Description

Technical Field

[0001] This invention relates to the field of oil and gas transportation technology, and in particular to a leak monitoring and alarm device for long-distance pipeline connections. Background Technology

[0002] Long-distance oil and gas pipelines refer to pipeline systems used for transporting and storing oil, natural gas and their derivatives. The entire pipeline is made up of multiple sections of pipeline connected by welding or flanges. After long-term use, the vibration caused by the movement of oil and gas in the pipeline can lead to gaps at the pipeline joints, resulting in oil and gas leaks.

[0003] To promptly detect this problem, detection chambers, pressure sensors, and buzzer alarms are installed at pipeline connections to detect pressure changes within the pipeline in a timely manner and issue alarms promptly upon detection of changes. Traditional pressure sensors are directly threaded onto the detection chamber. However, when unstable fluid flow occurs within the pipeline, such as turbulence or vibration, it can cause pipeline vibration. This vibration can loosen the connection between the pressure sensor and the detection chamber. When loose, fluid can leak out through the loose point, causing pressure changes within the chamber and resulting in inaccurate readings, false alarms, or missed pressure changes, thus affecting its operation. Therefore, ensuring the stability and accuracy of pressure sensors is crucial for the safe operation of oil and gas pipelines. Summary of the Invention

[0004] The purpose of this invention is to provide a leak monitoring and alarm device for long-distance pipeline connections, which can effectively fix the pressure sensor, reduce sensor loosening caused by vibration, thereby improving the accuracy and reliability of oil and gas leak detection and ensuring the safe and efficient operation of oil and gas pipeline systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A leakage monitoring and alarm device for long-distance pipeline connections, characterized in that it includes a chamber assembly, a detection assembly, a limiting assembly, a positioning component, and a connecting component.

[0007] The detection component is disposed on the top of the chamber assembly, the limiting component is used to fix the detection component on the chamber assembly, and the positioning component is disposed at the connection between the limiting component and the chamber assembly.

[0008] The chamber assembly includes an upper chamber and a lower chamber. The bottom center of the upper chamber has an arc-shaped notch, and the top center of the lower chamber has an arc-shaped notch. The bottom of the upper chamber and the top of the lower chamber are connected, and the connecting member is disposed inside the chamber assembly.

[0009] Furthermore, the detection component includes a pressure sensor, a controller, and a buzzer.

[0010] The pressure sensor is located at one end of the top of the chamber assembly, the controller is fixedly connected to the other end of the top of the chamber assembly, the buzzer is located on the top of the controller, the pressure sensor is electrically connected to the input terminal of the controller, and the buzzer is electrically connected to the output terminal of the controller.

[0011] Furthermore, the limiting component includes a pressing block and a limiting ring.

[0012] A connection hole is provided at one end of the top of the upper cavity. The pressure sensor is inserted and connected inside the connection hole. The limiting ring is sleeved on the outside of the pressure sensor. The pressing block is set on the top of the limiting ring. The horizontal longitudinal section of the pressing block is set in an L shape. The pressing block is hinged to one side of the upper cavity.

[0013] Furthermore, the positioning element includes a positioning groove, a positioning block, a sliding block, a sliding channel, a slider, and a rubber block.

[0014] The positioning block is fixedly connected to the inner side of the bottom of the pressing block, the sliding block is disposed on the inner side of the pressing block, a positioning groove is provided on one side of the sliding block, and the positioning block is inserted into the inside of the positioning groove.

[0015] A rubber block is fixedly connected to the top of the sliding block, and a groove is provided on the other side of the sliding block. A slider is fixedly connected to one side of the upper cavity, and the slider is inserted into the inside of the groove.

[0016] Furthermore, the connector includes a sealing gasket and several retaining rings.

[0017] The plurality of blocking rings are disposed at the connection between the upper cavity and the lower cavity. Sealing grooves are provided on opposite sides of the upper cavity and the lower cavity, and sealing gaskets are fixedly connected inside the sealing grooves.

[0018] Furthermore, the horizontal cross-sections of both the positioning block and the positioning groove are set as isosceles trapezoids.

[0019] Furthermore, the horizontal transverse cross-sections of both the slider and the groove are set as isosceles trapezoids.

[0020] Furthermore, the blocking ring is a cuboid with a circular hole in the center.

[0021] Advantages of this invention:

[0022] This invention, through the design of a limiting component, first fixes the pressure sensor in a predetermined position during use. Then, the pressing block automatically pushes the limiting ring, and the pressing block, limiting ring, and pressure sensor are securely connected by a positioning component, thereby ensuring the stability of the pressure sensor in the pipeline and solving the problem of pressure sensor stability in the prior art. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the chamber assembly and the detection assembly in this invention.

[0025] Figure 3 This is a schematic diagram of the structure of the limiting component in this invention.

[0026] Figure 4 This is a front cross-sectional view of the positioning component in this invention.

[0027] Figure 5 This is a front cross-sectional view of the connector in this invention.

[0028] Figure 6 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0029] Figure 7 This is a second schematic diagram of the three-dimensional structure of the present invention.

[0030] In the diagram: 1. Chamber assembly; 101. Upper cavity; 102. Lower cavity;

[0031] 2. Detection components; 201. Pressure sensor; 202. Controller; 203. Buzzer;

[0032] 3. Restriction component; 301. Pressing block; 302. Restriction ring;

[0033] 4. Positioning components; 401. Positioning groove; 402. Positioning block; 403. Sliding block; 404. Slide groove; 405. Sliding block; 406. Rubber block;

[0034] 5. Connecting parts; 501. Sealing gasket; 502. Retaining ring. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0036] like Figure 1 and Figure 5 As shown, a leakage monitoring and alarm device for long-distance pipeline connections is characterized by comprising a chamber assembly 1, a detection assembly 2, a limiting assembly 3, a positioning component 4, and a connecting component 5.

[0037] The detection component 2 is disposed on the top of the chamber component 1, the limiting component 3 is used to fix the detection component 2 on the chamber component 1, and the positioning component 4 is disposed at the connection between the limiting component 3 and the chamber component 1.

[0038] like Figure 2 and Figure 5 As shown, the chamber assembly 1 includes an upper chamber 101 and a lower chamber 102. The bottom center of the upper chamber 101 is provided with an arc-shaped notch, and the top center of the lower chamber 102 is provided with an arc-shaped notch. The bottom of the upper chamber 101 and the top of the lower chamber 102 are connected, and the connecting member 5 is disposed inside the chamber assembly 1.

[0039] In a preferred embodiment of the present invention, the detection component 2 includes a pressure sensor 201, a controller 202, and a buzzer 203.

[0040] The pressure sensor 201 is disposed at one end of the top of the chamber assembly 1, the controller 202 is fixedly connected to the other end of the top of the chamber assembly 1, the buzzer 203 is disposed on the top of the controller 202, the pressure sensor 201 is electrically connected to the input terminal of the controller 202, the buzzer 203 is electrically connected to the output terminal of the controller 202, and the buzzer 203 is used to issue an alarm.

[0041] The pressure sensor 201, controller 202, and buzzer 203 together form a gas pressure alarm of model CH702. The pressure sensor 201 detects other pressure changes within the chamber assembly 1. When a leak occurs at the pipe connection, gas from the pipe enters the interior of the chamber assembly 1, thereby increasing the gas pressure within the chamber assembly 1. During use, the pressure sensor 201 detects changes in pressure within the chamber assembly 1. When the pressure increases, the pressure sensor 201 transmits the change to the controller 202, which then controls the buzzer 203 to activate, thus issuing an alarm.

[0042] As a preferred embodiment of the present invention, such as Figure 3 As shown, the limiting component 3 includes a pressing block 301 and a limiting ring 302.

[0043] like Figures 1-3 As shown, a connection hole is provided at one end of the top of the upper cavity 101, and the pressure sensor 201 is inserted and connected inside the connection hole. The pressure sensor 201 is used to detect pressure changes. The limiting ring 302 is sleeved on the outside of the pressure sensor 201. The pressing block 301 is set on the top of the limiting ring 302. The horizontal longitudinal section of the pressing block 301 is set in an L shape. The pressing block 301 is hinged to one side of the upper cavity 101.

[0044] The pressing block 301 is hinged to one side of the upper cavity 101, allowing the pressing block 301 to rotate on one side of the upper cavity 101. Through the L-shaped design, the top of the pressing block 301 is pressed against the top of the limiting ring 302.

[0045] As a preferred embodiment of the present invention, such as Figure 4 , Figure 6 and Figure 7 As shown, the positioning component 4 includes a positioning groove 401, a positioning block 402, a sliding block 403, a sliding groove 404, a slider 405, and a rubber block 406. The positioning component 4 is used to fix the pressing block 301.

[0046] The positioning block 402 is fixedly connected to the inner side of the bottom of the pressing block 301. The sliding block 403 is disposed on the inner side of the pressing block 301. A positioning groove 401 is provided on one side of the sliding block 403. The positioning block 402 is inserted into the inside of the positioning groove 401. The positioning groove 401 is used to restrict the movement of the positioning block 402.

[0047] A rubber block 406 is fixedly connected to the top of the sliding block 403, and the rubber block 406 is used to push the sliding block 403; a groove 404 is provided on the other side of the sliding block 403, and a slider 405 is fixedly connected to one side of the upper cavity 101. The slider 405 is inserted into the inside of the groove 404, and the slider 405 is used to limit the movement direction of the sliding block 403.

[0048] The chamber assembly 1 is fitted at the connection of multiple pipes. When oil or gas leaks at the pipe connection, the oil or gas will enter the interior of the chamber assembly 1, causing a change in the pressure inside the chamber assembly 1. The pressure sensor 201 is used to detect the pressure inside the chamber assembly 1. In use, the pressure sensor 201 is first threadedly connected to the top of the chamber assembly 1 to fix its position. Then, the pressing block 301 is moved to the top of the limiting ring 302, and the position of the pressing block 301 is fixed by the positioning member 4, so that the pressure sensor 201 cannot move away from the chamber assembly 1, thereby preventing the pressure sensor 201 from becoming loose.

[0049] The rubber block 406 is made of rubber and will deform when squeezed and will recover its shape after the squeeze is released. The positioning block 402 is fixed to the bottom inner side of the pressing block 301. During use, the position of the pressing block 301 is fixed by fixing the positioning block 402. The slider 405 is fixed to one side of the upper cavity 101. The groove 404 is adapted to the slider 405, so that the sliding block 403 can slide on one side of the slider 405 through the groove 404. The design of the groove 404 with a horizontal cross section of isosceles trapezoid and the slider 405 makes it impossible for the slider 405 to move out of the groove 404, thereby restricting the movement of the sliding block 403. When it is necessary to fix the position of the pressing block 301, the sliding block 403 is directly sleeved on the positioning block 402 through the positioning groove 401, and the position of the positioning block 402 is fixed by the sliding block 403, and the position of the pressing block 301 is fixed by the positioning block 402.

[0050] As a preferred embodiment of the present invention, such as Figure 5 As shown, the connector 5 includes a sealing gasket 501 and a plurality of retaining rings 502.

[0051] The plurality of blocking rings 502 are disposed at the connection between the upper cavity 101 and the lower cavity 102. The plurality of blocking rings 502 are used to restrict the relative movement of the upper cavity 101 and the lower cavity 102. Sealing grooves are provided on opposite sides of the upper cavity 101 and the lower cavity 102. A sealing gasket 501 is fixedly connected inside the sealing groove. The sealing gasket 501 is used to seal the connection between the upper cavity 101 and the lower cavity 102.

[0052] In a preferred embodiment of the present invention, the horizontal cross-sections of the positioning block 402 and the positioning groove 401 are both set as isosceles trapezoids.

[0053] In a preferred embodiment of the present invention, the horizontal transverse sections of both the slider 405 and the groove 404 are set as isosceles trapezoids.

[0054] In a preferred embodiment of the present invention, the blocking ring 502 is a cuboid with a circular hole in the middle, which is fixedly sleeved on the middle of the pipe, and there are at least two of them. When it is necessary to fix the upper cavity 101 and the lower cavity 102 to the pipe, the upper cavity 101 and the lower cavity 102 are first sleeved on the pipe, so that the front and back of the blocking ring 502 are respectively in contact with the inner walls of the front and back of the upper cavity 101 and the lower cavity 102, so that the upper cavity 101 and the lower cavity 102 cannot rotate on the outer wall of the blocking ring 502, and the inner walls on both sides of the upper cavity 101 and the lower cavity 102 are respectively in contact with the two blocking rings. The ring 502 is fitted to the opposite side, and the two blocking rings 502 restrict the left and right movement of the upper cavity 101 and the lower cavity 102. Finally, the upper cavity 101 and the lower cavity 102 are fixed together with bolts, so that the upper cavity 101 and the lower cavity 102 cannot move freely on the pipeline. The sealing gasket 501 is fixed to the upper cavity 101 and the lower cavity 102 by adhesive bonding. During use, the connection between the upper cavity 101, the lower cavity 102 and the pipeline is sealed to prevent oil and gas from entering the interior of the chamber assembly 1 and then overflowing through the connection between the three.

[0055] The steps for using the device of the present invention are as follows:

[0056] 1) First, fit the upper cavity 101 and the lower cavity 102 into the middle of the pipe, and then fix the positions of the upper cavity 101 and the lower cavity 102 with bolts.

[0057] 2) Insert the pressure sensor 201 into the top of the upper cavity 101, pull the sliding block 403 upward, and rotate the pressing block 301 so that the pressing block 301 fits against the top of the limiting ring 302. Then move the sliding block 403 downward so that the positioning block 402 enters the interior of the positioning groove 401. The positioning block 402 restricts the movement of the positioning groove 401 and the pressing block 301, and the pressing block 301 in a fixed position restricts the upward movement of the pressure sensor 201, thereby fixing the position of the pressure sensor 201.

[0058] 3) When oil and gas leaks at the connection of the pipeline, the oil and gas will enter the interior of the chamber assembly 1, increasing the pressure inside the chamber assembly 1. When the pressure sensor 201 detects the pressure change, it transmits the change information to the interior of the controller 202, and the controller 202 controls the buzzer 203 to turn on, and the buzzer 203 sounds an alarm.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A leakage monitoring and alarm device for long-distance pipeline connections, characterized in that: It includes a chamber assembly (1), a detection assembly (2), a restraint assembly (3), a positioning component (4), and a connector (5); The detection component (2) is disposed on the top of the chamber assembly (1), the limiting component (3) is used to fix the detection component (2) on the chamber assembly (1), and the positioning component (4) is disposed at the connection between the limiting component (3) and the chamber assembly (1); The chamber assembly (1) includes an upper chamber (101) and a lower chamber (102). The upper chamber (101) has an arc-shaped notch at the center of its bottom, and the lower chamber (102) has an arc-shaped notch at the center of its top. The bottom of the upper chamber (101) and the top of the lower chamber (102) are connected. The connector (5) is disposed inside the chamber assembly (1). The detection assembly (2) includes a pressure sensor (201), a controller (202), and a buzzer (203). The limiting component (3) includes a pressing block (301) and a limiting ring (302); A connection hole is provided at one end of the top of the upper cavity (101), the pressure sensor (201) is inserted and connected inside the connection hole, the limiting ring (302) is sleeved on the outside of the pressure sensor (201), the pressing block (301) is set on the top of the limiting ring (302), the horizontal longitudinal section of the pressing block (301) is set in an L shape, and the pressing block (301) is hinged to one side of the upper cavity (101); The positioning component (4) includes a positioning groove (401), a positioning block (402), a sliding block (403), a sliding groove (404), a slider (405), and a rubber block (406). The positioning block (402) is fixedly connected to the inner side of the bottom of the pressing block (301), the sliding block (403) is disposed inside the pressing block (301), a positioning groove (401) is provided on one side of the sliding block (403), and the positioning block (402) is inserted into the inside of the positioning groove (401). A rubber block (406) is fixedly connected to the top of the sliding block (403), and a groove (404) is provided on the other side of the sliding block (403). A slider (405) is fixedly connected to one side of the upper cavity (101), and the slider (405) is inserted into the inside of the groove (404).

2. The leakage monitoring and alarm device for long-distance pipeline connections according to claim 1, characterized in that: The pressure sensor (201) is located at one end of the top of the chamber assembly (1), the controller (202) is fixedly connected to the other end of the top of the chamber assembly (1), the buzzer (203) is located on the top of the controller (202), the pressure sensor (201) is electrically connected to the input terminal of the controller (202), and the buzzer (203) is electrically connected to the output terminal of the controller (202).

3. A leakage monitoring and alarm device for long-distance pipeline connections according to claim 2, characterized in that: The connector (5) includes a sealing gasket (501) and a plurality of retaining rings (502); The plurality of blocking rings (502) are disposed at the connection between the upper cavity (101) and the lower cavity (102). Sealing grooves are provided on opposite sides of the upper cavity (101) and the lower cavity (102), and sealing gaskets (501) are fixedly connected inside the sealing grooves.

4. A leakage monitoring and alarm device for long-distance pipeline connections according to claim 3, characterized in that: The horizontal cross-sections of the positioning block (402) and the positioning groove (401) are both set as isosceles trapezoids.

5. A leakage monitoring and alarm device for long-distance pipeline connections according to claim 4, characterized in that: The horizontal transverse sections of both the slider (405) and the groove (404) are set as isosceles trapezoids.

6. A leakage monitoring and alarm device for long-distance pipeline connections according to claim 5, characterized in that: The blocking ring (502) is a cuboid with a circular hole in the middle.

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