Leakage monitoring and alarming device for connecting position of long-distance pipeline

Abstract

The invention provides a leakage monitoring alarm device for a long-distance pipeline joint, which belongs to the technical field of oil and gas transportation and comprises a cavity assembly, a detection assembly, a limiting assembly, a positioning piece and a connecting piece. The detection assembly is arranged at the top of the cavity assembly, the limiting assembly is used for fixing the detection assembly on the cavity assembly, and the positioning piece is arranged at the joint of the limiting assembly and the cavity assembly. The cavity assembly comprises an upper cavity and a lower cavity, an arc-shaped notch is formed in the center of the bottom of the upper cavity, an arc-shaped notch is formed in the center of the top of the lower cavity, the bottom of the upper cavity is connected with the top of the lower cavity, and the connecting piece is arranged in the cavity assembly. The device can effectively fix the pressure sensor, and reduces the looseness of the sensor caused by vibration, thereby improving the accuracy and reliability of oil and gas leakage detection, and ensuring the safe and efficient operation of an oil and gas pipeline system.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas transportation, and in particular to a leakage monitoring and alarm device used at a connection of a long-distance pipeline. Background Art

[0002] Long-distance oil and gas pipelines refer to pipeline systems used to transport and store oil, natural gas and their derivatives. The overall pipeline is made up of multiple sections of pipelines connected by welding or flanges. After long-term use, the vibration generated by the movement of oil and gas in the pipeline causes gaps in the pipeline joints, resulting in oil and gas leakage.

[0003] In order to detect this problem in time, a detection chamber, pressure sensor and buzzer alarm will be set at the connection of the pipeline to detect the change of pressure in the pipeline in time, and an alarm will be issued in time to remind the staff after the change. The traditional pressure sensor is directly connected to the detection chamber through threads, but when the fluid flows unstably in the pipeline, such as turbulence and vibration, it will cause the vibration of the pipeline. The vibration of the pipeline will cause the connection between the pressure sensor and the detection chamber to loosen. When loose, the fluid will flow out from the loose part, causing the pressure in the chamber to change, resulting in inaccurate readings, false alarms or omissions of pressure changes in the detection chamber, thus affecting its use. Therefore, ensuring the stability and accuracy of the pressure sensor is crucial to the safe operation of oil and gas pipelines. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A leakage monitoring and alarm device for a long-distance pipeline connection is characterized by comprising a chamber component, a detection component, a restriction component, a positioning component and a connecting component.

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

[0008] The chamber assembly includes an upper cavity and a lower cavity, the bottom center of the upper cavity is provided with an arc-shaped notch, the top center of the lower cavity is provided with an arc-shaped notch, the bottom of the upper cavity is connected to the top of the lower cavity, and the connecting piece is provided inside the chamber assembly.

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

[0010] The pressure sensor is arranged 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 arranged on the top of the controller, the pressure sensor is electrically connected to the input end of the controller, and the buzzer is electrically connected to the output end of the controller.

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

[0012] A connecting hole is opened at one end of the top of the upper cavity, the pressure sensor is inserted and connected inside the connecting hole, the limiting ring is arranged on the outside of the pressure sensor, the pressing block is arranged on the top of the limiting ring, the horizontal longitudinal cross-section of the pressing block is arranged to be L-shaped, and the pressing block is hinged on one side of the upper cavity.

[0013] Furthermore, the positioning member includes a positioning groove, a positioning block, a sliding block, a sliding groove, a sliding block 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 arranged on the inner side of the pressing block, a positioning groove is opened on one side of the sliding block, and the positioning block is inserted and connected inside the positioning groove.

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

[0016] Furthermore, the connecting piece includes a sealing gasket and a plurality of blocking rings.

[0017] The plurality of blocking rings are arranged at the connection between the upper cavity and the lower cavity. The upper cavity and the lower cavity are provided with sealing grooves on opposite sides thereof. The interior of the sealing grooves is fixedly connected with sealing pads.

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

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

[0020] Furthermore, the blocking ring is a rectangular parallelepiped with a circular hole in the middle.

[0021] Advantages of the present invention:

[0022] The present invention adopts the design of a limiting component. When in use, the pressure sensor is first fixed in a predetermined position, and then the pressing block automatically pushes the limiting ring. The pressing block, the limiting ring and the pressure sensor are firmly connected through the positioning piece, thereby ensuring the stability of the pressure sensor in the pipeline and solving the problem of the stability of the pressure sensor in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic diagram of the structure of the chamber component and the detection component in the present invention.

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

[0026] Figure 4 It is a front cross-sectional structural schematic diagram of the positioning member in the present invention.

[0027] Figure 5 It is a schematic diagram of the front cross-sectional structure of the connecting piece in the present invention.

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

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

[0030] In the figure: 1, chamber assembly; 101, upper chamber; 102, lower chamber;

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

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

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

[0034] 5. Connecting piece; 501. Sealing gasket; 502. Blocking ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

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

[0037] The detection component 2 is arranged 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 member 4 is arranged 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 cavity 101 and a lower cavity 102, an arc-shaped notch is provided at the bottom center of the upper cavity 101, and an arc-shaped notch is provided at the top center of the lower cavity 102, the bottom of the upper cavity 101 and the top of the lower cavity 102 are connected, and the connecting piece 5 is provided inside the chamber assembly 1.

[0039] As 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 arranged 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 arranged at the top of the controller 202, the pressure sensor 201 is electrically connected to the input end of the controller 202, the buzzer 203 is electrically connected to the output end of the controller 202, and the buzzer 203 is used to sound an alarm.

[0041] The pressure sensor 201, controller 202 and buzzer 203 constitute a gas pressure alarm model CH702. The pressure sensor 201 is used to detect other pressure changes in the chamber assembly 1. When a leak occurs at the pipe connection, the gas in the pipe enters the interior of the chamber assembly 1, thereby increasing the gas pressure in the chamber assembly 1. When in use, the pressure sensor 201 is used to detect the pressure change in the chamber assembly 1. When the pressure increases, the pressure sensor 201 transmits the change to the controller 202, and the controller 202 controls the buzzer 203 to turn on, thereby sounding an alarm.

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

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

[0044] The pressing block 301 is hinged on one side of the upper cavity 101 so that the pressing block 301 can rotate on one side of the upper cavity 101 , and the top of the pressing block 301 can be pressed against the top of the limiting ring 302 through the L-shaped design.

[0045] As a preferred embodiment of the present invention, Figure 4 , Figure 6 and Figure 7 As shown, the positioning member 4 includes a positioning groove 401 , a positioning block 402 , a sliding block 403 , a sliding groove 404 , a sliding block 405 and a rubber block 406 , and the positioning member 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 arranged on the inner side of the pressing block 301, a positioning groove 401 is opened on one side of the sliding block 403, the positioning block 402 is inserted and connected inside the positioning groove 401, and the positioning groove 401 is used to limit 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 sliding groove 404 is opened 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 sliding groove 404, and the slider 405 is used to limit the moving direction of the sliding block 403.

[0048] The chamber assembly 1 is mounted at the connection of multiple pipelines. When oil and gas leakage occurs at the pipeline connection, the oil and gas will enter the interior of the chamber assembly 1, thereby causing the pressure inside the chamber assembly 1 to change. The set pressure sensor 201 is used to detect the pressure inside the chamber assembly 1; when in use, the pressure sensor 201 is first threadedly inserted and connected to the top of the chamber assembly 1 to fix the position of the pressure sensor 201, and 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 piece 4, so that the pressure sensor 201 cannot move to the side away from the chamber assembly 1, thereby avoiding the pressure sensor 201 from loosening.

[0049] The rubber block 406 is made of rubber material and will deform when squeezed, and will restore the deformation after the squeeze is removed. The positioning block 402 is fixed to the inner side of the bottom of the pressing block 301. When in 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, and the opened slide groove 404 is adapted to the set slider 405, so that the sliding block 403 can slide on one side of the slider 405 through the slide groove 404, and the slide groove 404 and the slider 405 are designed with an isosceles trapezoidal horizontal cross-section, so that the slider 405 cannot move out of the slide groove 404, thereby limiting the movement of the sliding block 403. When the position of the pressing block 301 needs to be fixed, the sliding block 403 is directly mounted 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 in a fixed position.

[0050] As a preferred embodiment of the present invention, Figure 5 As shown, the connecting member 5 includes a sealing gasket 501 and a plurality of blocking rings 502 .

[0051] The plurality of blocking rings 502 are arranged at the connection between the upper cavity 101 and the lower cavity 102, and the plurality of blocking rings 502 are used to limit the relative movement 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 a sealing gasket 501 is fixedly connected to the inside of the sealing groove. The sealing gasket 501 is used to seal the connection between the upper cavity 101 and the lower cavity 102.

[0052] As a preferred embodiment of the present invention, the horizontal transverse cross-sections of the positioning block 402 and the positioning groove 401 are both configured to be isosceles trapezoids.

[0053] As a preferred embodiment of the present invention, the horizontal transverse cross-sections of the slider 405 and the slide groove 404 are both configured to be isosceles trapezoids.

[0054] As a preferred embodiment of the present invention, the blocking ring 502 is a rectangular parallelepiped with a circular hole in the middle, which is fixedly sleeved in the middle of the pipeline, and the number is at least two. When the upper cavity 101 and the lower cavity 102 need to be fixed on the pipeline, the upper cavity 101 and the lower cavity 102 are first sleeved on the pipeline, so that the front and back sides of the blocking ring 502 are respectively fitted with the inner walls of the front and back sides 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 fitted with the two blocking rings. The ring 502 is fitted to the back side, and the two blocking rings 502 are used to limit 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 by bolts, so that the upper cavity 101 and the lower cavity 102 cannot move freely on the pipeline. The set sealing gasket 501 is fixed to the upper cavity 101 and the lower cavity 102 by bonding. When in 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 of using the device of the present invention are as follows:

[0056] 1) First, the upper cavity 101 and the lower cavity 102 are sleeved in the middle of the pipe, and then the positions of the upper cavity 101 and the lower cavity 102 are fixed by bolts.

[0057] 2) Thread 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 with the top of the limiting ring 302, and then move the sliding block 403 downward so that the positioning block 402 penetrates into the interior of the positioning groove 401, and the positioning block 402 is used to limit the movement of the positioning groove 401 and the pressing block 301, and the pressing block 301 in a fixed position is used to limit the upward movement of the pressure sensor 201, thereby fixing the position of the pressure sensor 201.

[0058] 3) When oil and gas leakage occurs at the connection of the pipeline, the oil and gas will enter the interior of the chamber assembly 1, causing the pressure inside the chamber assembly 1 to increase. When the pressure sensor 201 detects the pressure change, the change information is transmitted to the inside of the controller 202, and the controller 202 controls the buzzer 203 to turn on, and the buzzer 203 issues an alarm.

[0059] The above description is only 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 above embodiments or replace some of the technical features by equivalents. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A leakage monitoring and alarm device for long-distance pipeline connections, characterized in that: It comprises a chamber component (1), a detection component (2), a limiting component (3), a positioning component (4) and a connecting component (5); The detection component (2) is arranged 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 member (4) is arranged at the connection between the limiting component (3) and the chamber component (1); The chamber assembly (1) comprises an upper chamber (101) and a lower chamber (102); an arc-shaped notch is arranged at the center of the bottom of the upper chamber (101); an arc-shaped notch is arranged at the center of the top of the lower chamber (102); the bottom of the upper chamber (101) and the top of the lower chamber (102) are connected; and the connecting piece (5) is arranged inside the chamber assembly (1).

2. A leakage monitoring and alarm device for a long-distance pipeline connection according to claim 1, characterized in that: The detection component (2) comprises a pressure sensor (201), a controller (202) and a buzzer (203); The pressure sensor (201) is arranged 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 arranged at the top of the controller (202), the pressure sensor (201) is electrically connected to the input end of the controller (202), and the buzzer (203) is electrically connected to the output end of the controller (202).

3. A leakage monitoring and alarm device for a long-distance pipeline connection according to claim 2, characterized in that: The limiting component (3) comprises 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 arranged on the top of the limiting ring (302), the horizontal longitudinal cross-section of the pressing block (301) is arranged in an L shape, and the pressing block (301) is hinged on one side of the upper cavity (101).

4. A leakage monitoring and alarm device for a long-distance pipeline connection according to claim 3, characterized in that: The positioning member (4) comprises a positioning groove (401), a positioning block (402), a sliding block (403), a sliding groove (404), a sliding block (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 arranged on the inner side of the pressing block (301), a positioning groove (401) is opened on one side of the sliding block (403), and the positioning block (402) is inserted and connected inside the positioning groove (401); A rubber block (406) is fixedly connected to the top of the sliding block (403), a sliding groove (404) is provided on the other side of the sliding block (403), and a sliding block (405) is fixedly connected to one side of the upper cavity (101), and the sliding block (405) is inserted and connected inside the sliding groove (404).

5. The leakage monitoring and alarm device for long-distance pipeline connection according to claim 4 is characterized in that: The connecting member (5) comprises a sealing gasket (501) and a plurality of blocking rings (502); The plurality of blocking rings (502) are arranged at the connection between the upper cavity (101) and the lower cavity (102), and 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.

6. The leakage monitoring and alarm device for long-distance pipeline connection according to claim 5 is characterized in that: The horizontal transverse cross-sections of the positioning block (402) and the positioning groove (401) are both configured as isosceles trapezoids.

7. The leakage monitoring and alarm device for long-distance pipeline connection according to claim 6 is characterized in that: The horizontal transverse cross-sections of the slider (405) and the slide groove (404) are both configured as isosceles trapezoids.

8. The leakage monitoring and alarm device for long-distance pipeline connection according to claim 7 is characterized in that: The blocking ring (502) is a rectangular parallelepiped with a circular hole in the middle.

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