Laser monitoring device for methane leakage in natural gas pipelines

Abstract

The present invention relates to the field of laser monitoring, in particular to a natural gas pipeline methane leakage laser monitoring device, comprising an obstruction mechanism, which is used to reduce signal and electromagnetic interference to the device; a detection mechanism, which is used to monitor methane leakage; a stabilization mechanism, which is used to increase the support strength for the entire device; the detection mechanism is fixedly installed on the obstruction mechanism, and the obstruction mechanism is fixedly installed on the stabilization mechanism; wherein the detection mechanism comprises a wire storage platform, the bottom of the wire storage platform is fixedly connected to the obstruction mechanism, sleeve rods are symmetrically arranged on both sides of the wire storage platform, and a laser component is rotatably connected to one end of the sleeve rod away from the wire storage platform. The natural gas pipeline methane leakage laser monitoring device monitors in real time whether the pipeline has problems such as rupture or bulging by manually deflecting a camera and making the irradiation range of the camera be at the connection part between two pipelines.

Description

Technical Field

[0001] The invention relates to the technical field of laser monitoring, in particular to a laser monitoring device for methane leakage in a natural gas pipeline. Background Art

[0002] Natural gas is composed of alkanes such as methane, ethane, propane and butane, among which methane is the main component of natural gas and is a flammable gas. Under standard conditions, methane is a colorless and odorless gas. When the concentration of methane exceeds the standard, it will cause an explosion. Methane is a gas commonly used in production and life. Methane can be used as a chemical raw material and can be used to produce acetylene, hydrogen, synthetic ammonia, carbon black, sulfur dioxide, methyl chloride, dichloromethane, chloroform, etc. Methane is an organic compound and the simplest organic substance. Methane is widely distributed in nature and is a kind of flammable and explosive substance. Methane is commonly known as gas.

[0003] There are several problems with existing methane leak laser monitoring devices: 1. The laser scans the detection area, and then the external receiving device absorbs the reflected signal. During this process, false alarms or missed alarms may occur due to signal interference from other equipment or other reasons; 2. In addition, there may be blind spots in certain pipeline locations that cannot be detected by the laser. At this time, the laser cannot perform the next step of detection, resulting in methane leakage. Summary of the invention

[0004] The present invention provides a natural gas pipeline methane leakage laser monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A laser monitoring device for methane leakage in a natural gas pipeline includes an interference mechanism, which is used to reduce signal and electromagnetic interference to the device;

[0006] A detection agency, which is used to monitor methane leaks;

[0007] A stabilizing mechanism, which is used to increase the support strength of the entire device;

[0008] The detection mechanism is fixedly mounted on the blocking mechanism, and the blocking mechanism is fixedly mounted on the stabilizing mechanism;

[0009] The detection mechanism includes a wire storage platform, the bottom of which is fixedly connected to the obstruction mechanism, sleeve rods are symmetrically arranged on both sides of the wire storage platform, one end of the sleeve rod away from the wire storage platform is rotatably connected to a laser component, and the laser component is fixedly connected to a gas detection component;

[0010] The laser assembly includes a baffle, the outer side of the baffle is rotatably connected to the sleeve rod, the inner side of the baffle is fixedly connected to an infrared detection head, the top of the baffle is fixedly connected to a universal head, the top of the universal head is fixedly connected to a camera, and the end of the camera close to the lens is fixedly connected to a protective cover.

[0011] Preferably, the blocking mechanism comprises a hollow column, the top of which is fixedly connected to the wire storage platform, the bottom of which is fixedly connected to a support plate, the bottom of which is fixedly connected to the stabilizing mechanism, and the outer side of the hollow column is fixedly connected to a control box.

[0012] Preferably, the inner sliding adapter of the hollow column is equipped with a positioning claw, a filter is placed at the bottom of the positioning claw, the filter is fixedly connected to the outside of the hollow column, the center of the bottom of the positioning claw is fixedly connected to an inner frame rod, the bottom end of the inner frame rod is fixedly connected to a center slider, and the bottom of the center slider is fixedly connected to a stabilizing mechanism.

[0013] Preferably, a vertical rail is fixedly connected to the inner side of the hollow column, the interior of the vertical rail is slidably connected to the central slider, a hole groove is opened on the outer side of the hollow column, a handle is adapted to be fitted inside the hole groove, and the inner end of the handle is fixedly connected to the central slider.

[0014] Preferably, the stabilizing mechanism includes a folding plate, the outer side of the folding plate is fixedly connected to a card plate, the tops of the folding plate and the card plate are fixedly connected to the support plate, the outer side of the card plate is plugged with a double connecting rod, the outer side of the double connecting rod is fixedly connected with a return spring, one end of the return spring away from the double connecting rod is fixedly connected to the card plate, the inner end of the double connecting rod is slidably adapted to a limiting assembly, the outer side of the double connecting rod is plugged with a rod rack, and the rod rack is arranged inside the folding plate.

[0015] Preferably, a partition plate is fixedly connected to the bottom of the inner cavity of the folding plate, and a stabilizing component is slidably adapted on the top of the partition plate. The stabilizing component is fixedly connected to the inner side of the folding plate, and a supporting foot is fixedly connected to the bottom of the stabilizing component. The outer side of the stabilizing component is rotatably connected to a limiting component, and the limiting component includes triangular teeth, and an arc groove is provided on the outer side of the triangular teeth. The inside of the arc groove is slidably connected to a double connecting rod, and a limiting hole is provided inside the arc groove.

[0016] Preferably, the stabilizing assembly includes a one-way slide, the top of which is fixedly connected to a top insertion rod, the top of which is fixedly connected to a central sliding block, the outer side of the one-way slide is rotatably connected to a No. 1 hinge, the end of the No. 1 hinge away from the one-way slide is rotatably connected to a No. 2 hinge, the end of the No. 2 hinge away from the No. 1 hinge is fixedly connected to a support shaft, the support shaft is fixedly connected to the inner side of the folding plate, and the outer side of the support shaft is fixedly connected to the triangular gear.

[0017] Preferably, the inner side of the folding plate is rotatably connected to a No. 2 connecting piece, the end of the No. 2 connecting piece away from the folding plate is rotatably connected to an outward support plate, the bottom of the outward support plate is fixedly connected to a supporting foot, the outer side of the outward support plate is rotatably connected to a No. 1 connecting piece, and the end of the No. 1 connecting piece away from the outward support plate is fixedly connected to a support shaft.

[0018] Preferably, the gas detection component includes a storage tube, the outer side of the storage tube is fixedly connected to the baffle frame, the outer side of the storage tube is fixedly connected with a lock buckle, the top of the lock buckle is fixedly connected with a methane analyzer, the outer side of the methane analyzer is fixedly connected with a flow tube, the end of the flow tube away from the methane analyzer is fixedly connected with an input tube, the outer side of the input tube is fixedly connected with a ring, the input tube and the ring are both fixedly connected to the storage tube, and an internal component is arranged inside the storage tube.

[0019] Preferably, the internal component includes a motor, which is fixedly connected to the inside of the storage tube, and the output end of the motor is connected to the fan blades through a coupling, and the outer side of the motor output end is fixedly connected to a rotating part, and the outer side of the rotating part is extruded and adapted with a tough sheet, and the upper and lower ends of the tough sheet are fixedly connected to blocking plates, and the blocking plates are inserted into the outer sides of the circulation tube and the storage tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The inner frame rod fixedly connected to the top of the center slider will move upward with the positioning claw, and the positioning claw will move away from the output end of the filter. Because electromagnetic and other interference signals may affect the accuracy of detection, the filter plays a role in filtering the laser signal and related circuits to reduce electromagnetic interference.

[0022] 2. The support feet fixedly connected to the bottom of the outward-moving support plate will also deflect and contact the ground. Therefore, by extending the outward-moving support plate, the support strength of the entire equipment will be increased to prevent people from walking and hitting it and causing it to fall.

[0023] 3. Because the outer side of the double connecting rod is fixedly connected to the clamping plate through the return spring, the double connecting rod will be inserted into the limiting hole under the compression force of the return spring, thereby achieving the limiting and fixing effect on the entire stabilizing mechanism.

[0024] 4. The universal head installed on the top of the bracket allows the camera to be deflected arbitrarily. The movable part inside the universal head requires external force to be applied to deflect. Therefore, the camera is manually deflected and the camera's illumination range is placed at the connection between the two pipes to monitor in real time whether the pipe has problems such as rupture or bulging.

[0025] 5. The function of the methane analyzer is to detect blind spots in certain locations where methane may leak and float in the air. Because the density of methane is less than that of air, the air containing methane will be sucked into the input pipe and detected by the methane analyzer, thereby realizing the detection of methane leaks in the blind spots. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the external structure of the laser monitoring device for methane leakage in a natural gas pipeline of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the blocking mechanism of the present invention.

[0028] Figure 3 It is a schematic cross-sectional structure diagram of the blocking mechanism of the present invention.

[0029] Figure 4 It is a schematic diagram of the longitudinal section structure of the blocking mechanism of the present invention.

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0031] Figure 6 It is a structural schematic diagram of the stabilizing mechanism of the present invention.

[0032] Figure 7 It is a schematic diagram of the internal structure of the stabilizing mechanism of the present invention.

[0033] Figure 8 It is a schematic structural diagram of the limiting component of the present invention.

[0034] Fig. 9 It is a front view structural schematic diagram of the stabilizing assembly of the present invention.

[0035] Fig.10 It is a schematic diagram of the rear structural view of the stabilizing assembly of the present invention.

[0036] Fig.11 It is a structural schematic diagram of the detection mechanism of the present invention.

[0037] Fig.12 It is a schematic diagram of the structure of the laser assembly of the present invention.

[0038] Fig.13 It is a schematic diagram of the structure of the gas detection component of the present invention.

[0039] Fig.14 It is a schematic cross-sectional view of the internal components of the present invention.

[0040] In the figure: 1. blocking mechanism; 2. detection mechanism; 3. stabilizing mechanism; 11. hollow column; 12. control box; 13. filter; 14. control claw; 15. inner frame rod; 16. center slider; 17. hole groove; 18. pull handle; 19. support plate; 10. vertical rail; 31. folding plate; 32. card plate; 33. double connecting rod; 34. return spring; 35. partition plate; 36. stabilizing assembly; 37. supporting foot; 38. rod frame; 39. limiting assembly; 391. triangular teeth; 392. arc groove; 393. limiting hole; 361. one-way slide; 362. top plug rod; 363. hinge No. 1; 364. No. 2 No. hinge; 365, support shaft; 366, No. 1 connecting piece; 367, outward support plate; 368, No. 2 connecting piece; 21, wire storage platform; 22, sleeve rod; 23, laser assembly; 24, gas detection assembly; 231, baffle; 232, infrared detection head; 233, universal head; 234, camera; 235, shield; 241, storage tube; 242, lock; 243, methane analyzer; 244, circulation tube; 245, input tube; 246, collar; 247, internal assembly; 2471, motor; 2472, fan blade; 2473, rotating part; 2474, tough sheet; 2475, plugging plate. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only 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 making creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 14 The present invention provides a technical solution: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes an interference mechanism 1, which is used to reduce signal and electromagnetic interference to the device;

[0043] A detection mechanism 2, the detection mechanism 2 is used to monitor methane leakage;

[0044] A stabilizing mechanism 3, which is used to increase the support strength of the entire device;

[0045] The detection mechanism 2 is fixedly mounted on the blocking mechanism 1 , and the blocking mechanism 1 is fixedly mounted on the stabilizing mechanism 3 .

[0046] The blocking mechanism 1 includes a hollow column 11, the top of the hollow column 11 is fixedly connected to the wire storage platform 21, the bottom of the hollow column 11 is fixedly connected to a support plate 19, the bottom of the support plate 19 is fixedly connected to the stabilizing mechanism 3, the outer side of the hollow column 11 is fixedly connected to a control box 12, the inner sliding adaptation of the hollow column 11 is equipped with a position control claw 14, the bottom of the position control claw 14 is placed with a filter 13, the filter 13 is fixedly connected to the outer side of the hollow column 11, the center of the bottom of the position control claw 14 is fixedly connected to an inner frame rod 15, the bottom end of the inner frame rod 15 is fixedly connected to a central slider 16, the bottom of the central slider 16 is fixedly connected to the stabilizing mechanism 3, the inner side of the hollow column 11 is fixedly connected to a vertical rail 10, the inner part of the vertical rail 10 is connected to the central slider 1 6 sliding connection, a hole groove 17 is opened on the outer side of the hollow column 11, and a handle 18 is adapted inside the hole groove 17. The inner end of the handle 18 is fixedly connected to the central slider 16. When the whole equipment needs to be started, the operator can manually move the handle 18 upwards, and then the central slider 16 connected to the inner side of the handle 18 will move upwards along the vertical rail 10. At the same time, the inner frame rod 15 fixedly connected to the top of the central slider 16 will move upwards with the control claw 14, and the control claw 14 will move away from the output end of the filter 13. Because electromagnetic and other interference signals may affect the accuracy of detection, the filter 13 plays a role in filtering the laser signal and related circuits to reduce electromagnetic interference.

[0047] like Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the stabilizing mechanism 3 includes a folding plate 31, the outer side of the folding plate 31 is fixedly connected with a card plate 32, the tops of the folding plate 31 and the card plate 32 are fixedly connected to the support plate 19, the outer side of the card plate 32 is plugged with a double connecting rod 33, the outer side of the double connecting rod 33 is fixedly connected with a return spring 34, the end of the return spring 34 away from the double connecting rod 33 is fixedly connected to the card plate 32, the inner end of the double connecting rod 33 is slidably adapted to a limiting component 39, the outer side of the double connecting rod 33 is plugged with a rod frame 38, the rod frame 38 is arranged inside the folding plate 31, the bottom of the inner cavity of the folding plate 31 is fixedly connected with a partition plate 35, the top of the partition plate 35 is slidably adapted with a stabilizing component 36, the stabilizing component 36 is fixedly connected to the inner side of the folding plate 31, the bottom of the stabilizing component 36 is fixedly connected to a supporting foot 37, and the outer side of the stabilizing component 36 is rotatably connected to the limiting component 39.

[0048] The limiting assembly 39 includes a triangular tooth 391, an arc groove 392 is provided on the outer side of the triangular tooth 391, and the inner part of the arc groove 392 is slidably connected to the double connecting rod 33. The inner part of the arc groove 392 is provided with a limiting hole 393. In addition, when the support shaft 365 rotates clockwise, the triangular tooth 391 fixedly connected to the outer side thereof will also rotate accordingly, wherein the triangular tooth 391 is provided with an arc groove 392, and the inner part of the arc groove 392 is slidably connected to the double connecting rod 33, wherein the double connecting rod 33 is limited by the rod frame 38, so the double link 33 will passively slide in the arc groove 392. Therefore, when the triangular tooth 391 and the support shaft 365 are deflected to the maximum angle, the double link 33 will face the limiting hole 393. Because the outer side of the double link 33 is fixedly connected to the clamping plate 32 by the return spring 34, the double link 33 will be inserted into the limiting hole 393 under the compression force of the return spring 34, thereby realizing the limiting and fixing effect on the entire stabilizing mechanism 3.

[0049] The stabilizing assembly 36 includes a one-way slide 361, a top plug rod 362 is fixedly connected to the top of the one-way slide 361, and the top of the plug rod 362 is fixedly connected to the center slide 16. The outer side of the one-way slide 361 is rotatably connected to a first hinge 363, and the end of the first hinge 363 away from the one-way slide 361 is rotatably connected to a second hinge 364, and the end of the second hinge 364 away from the first hinge 363 is fixedly connected to a support shaft 365, and the support shaft 365 is fixedly connected to the inner side of the folding plate 31. The support shaft 365 The outer side of the one-way slide 361 is fixedly connected to the triangular teeth 391, and the inner side of the folding plate 31 is rotatably connected to the second connecting piece 368. The end of the second connecting piece 368 away from the folding plate 31 is rotatably connected to the outward support plate 367. As the central slider 16 moves upward along the vertical rail 10, the top insertion rod 362 fixedly connected to the bottom of the central slider 16 will move upward with the one-way slide 361. At this time, the first hinge 363 rotatably connected to the outer side of the one-way slide 361 will have a tendency to move upward. The second hinge 364 at the other end of the hinge 363 is fixedly connected to the support shaft 365, and the support shaft 365 is rotatably connected to the inner side of the folding plate 31. Therefore, the first hinge 363 will deflect counterclockwise through the part connected to the one-way slide 361 as a fulcrum, and the second hinge 364 will deflect clockwise on the folding plate 31 with the support shaft 365. At this time, the first connecting member 366 connected to the support shaft 365 will deflect clockwise accordingly, and the other end of the No. 1 connecting member 366 rotatably connected to the first connecting member 366 will deflect clockwise. The outward support plate 367 on the head will deflect accordingly, wherein the state of the outward support plate 367 after deflection is similar to the initial state, and the horizontal heights between the two are consistent, but after deflection, the outward support plate 367 will extend outward from the folding plate 31, and at the same time, the support foot 37 fixedly connected to the bottom of the outward support plate 367 will also deflect and contact the ground, so that the outward extension of the outward support plate 367 will increase the support strength of the entire device to prevent people from walking and hitting it and causing it to fall. The bottom of the outward support plate 367 is fixedly connected to the support foot 37, and the outer side of the outward support plate 367 is rotatably connected to a No. 1 connecting piece 366, and the end of the No. 1 connecting piece 366 away from the outward support plate 367 is fixedly connected to the support shaft 365.

[0050] like Fig.11 , Fig.12 , Fig.13 and Fig.14 As shown, the detection mechanism 2 includes a wire storage platform 21, the bottom of which is fixedly connected to the obstruction mechanism 1, sleeve rods 22 are symmetrically arranged on both sides of the wire storage platform 21, and one end of the sleeve rod 22 away from the wire storage platform 21 is rotatably connected to a laser component 23, and a gas detection component 24 is fixedly connected to the laser component 23.

[0051] The laser assembly 23 includes a baffle 231, the outer side of the baffle 231 is rotatably connected to the sleeve rod 22, the inner side of the baffle 231 is fixedly connected to an infrared detection head 232, the top of the baffle 231 is fixedly connected to a universal head 233, the top of the universal head 233 is fixedly connected to a camera 234, and the end of the camera 234 close to the lens is fixedly connected to a protective cover 235. In addition, the baffle 231 connected to the wire storage platform 21 through the sleeve rod 22 is rotatable, and the infrared detection head 232 arranged inside the baffle 231 is turned on, and it will monitor the leakage of methane in the natural gas pipeline. At the same time, the universal head 233 arranged on the top of the baffle 231 can make the camera 234 deflect arbitrarily, and the movable part inside the universal head 233 needs to apply external force to deflect, so the camera 234 is manually deflected, and the irradiation range of the camera 234 is at the connection between the two pipes to monitor in real time whether the pipeline has problems such as rupture or swelling.

[0052] The gas detection component 24 includes a storage tube 241, the outer side of the storage tube 241 is fixedly connected to the retaining frame 231, the outer side of the storage tube 241 is fixedly connected with a lock buckle 242, the top of the lock buckle 242 is fixedly connected with a methane analyzer 243, the outer side of the methane analyzer 243 is fixedly connected with a flow tube 244, the end of the flow tube 244 away from the methane analyzer 243 is fixedly connected with an input tube 245, the outer side of the input tube 245 is fixedly connected with a ring 246, the input tube 245 and the ring 246 are both fixedly connected to the storage tube 241, and an internal component 247 is arranged inside the storage tube 241.

[0053] The internal component 247 includes a motor 2471, which is fixedly connected to the inside of the storage tube 241. The output end of the motor 2471 is connected to the fan blade 2472 through a coupling. The outer side of the output end of the motor 2471 is fixedly connected to a rotating member 2473. The outer side of the rotating member 2473 is extruded and adapted with a tough sheet 2474. The upper and lower ends of the tough sheet 2474 are fixedly connected to a plugging plate 2475. The plugging plate 2475 is inserted into the outer side of the circulation tube 244 and the storage tube 241. When the motor 2471 is started, the fan blade 2472 connected thereto through the coupling will rotate. At this time, the fan blade 2472 will rotate and generate suction. Then the outside air forms an airflow and passes through the input tube 245 into the storage tube 241. In addition, the rotating member 2473 fixedly connected to the output end of the motor 2471 will rotate accordingly, and the rotating member 2473 will rotate during the rotation. During the movement, the tough sheet 2474 will be hit, and the tough sheet 2474 is tough, so the squeezed tough sheet 2474 will bend, and the blocking plate 2475 connected to the top of the tough sheet 2474 will move downward during the bending of the tough sheet 2474. At this time, the methane analyzer 243 and the input pipe 245 will be connected through the circulation pipe 244, so a part of the gas entering the input pipe 245 will contact the methane analyzer 243 through the circulation pipe 244. The function of this methane analyzer 243 is to detect blind spots that may not be detected in certain positions, and methane will leak in the blind spots and float in the air. Because the density of methane is less than that of air, the air containing methane will be sucked into the input pipe 245 and detected by the methane analyzer 243, thereby realizing the function of detecting methane leaks in the blind spots.

[0054] When the present invention is in use: first, when the entire device needs to be used, the operator manually moves the handle 18 upwards, and the central slider 16 connected to the inner side of the handle 18 will move upwards with the inner frame rod 15, and the control claw 14 connected to the top of the inner frame rod 15 will be moved away from the output port of the filter 13. At the same time, the one-way slide 361 fixedly connected to the bottom of the central slide 16 will move vertically upwards, and the outward support plate 367 connected to the one-way slide 361 through various transmission parts will move outward, and finally the outward support plate 367 and the supporting foot 37 connected to the bottom thereof will move outward from between the partition plates 35 and contact the ground. In addition, the retaining frame 231 connected to the wire storage platform 21 through the sleeve rod 22 is rotatable, and the infrared detection head 232 arranged inside the retaining frame 231 will monitor the natural gas pipeline. At the same time, the universal head 233 arranged on the top of the retaining frame 231 can allow the camera 234 to be deflected arbitrarily. Therefore, the camera 234 is manually deflected to the connection part between the pipelines to monitor in real time whether the pipeline has problems such as rupture or bulging.

[0055] Starting the motor 2471 will cause the fan blade 2472 connected to it through the coupling to rotate, and the rotating member 2473 fixedly connected to the output end of the motor 2471 will rotate accordingly. The rotating member 2473 will hit the tough piece 2474 during the rotation, wherein the tough piece 2474 is tough, and the blocking plate 2475 connected to the top of the tough piece 2474 will move downward during the bending of the tough piece 2474. At this time, the methane analyzer 243 and the input pipe 245 will be connected through the circulation pipe 244. Therefore, a part of the gas entering the input pipe 245 will contact the methane analyzer 243 through the circulation pipe 244, thereby realizing the detection of methane leakage in the blind spot.

[0056] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. A laser monitoring device for methane leakage in a natural gas pipeline, characterized in that: include: An interference blocking mechanism (1), the interference blocking mechanism (1) is used to reduce signal and electromagnetic interference on the device; A detection mechanism (2), the detection mechanism (2) is used to monitor methane leakage; A stabilizing mechanism (3), the stabilizing mechanism (3) being used to increase the support strength of the entire device; The detection mechanism (2) is fixedly mounted on the blocking mechanism (1), and the blocking mechanism (1) is fixedly mounted on the stabilizing mechanism (3); The detection mechanism (2) comprises a wire storage platform (21), the bottom of the wire storage platform (21) is fixedly connected to the blocking mechanism (1), sleeve rods (22) are symmetrically arranged on both sides of the wire storage platform (21), one end of the sleeve rod (22) away from the wire storage platform (21) is rotatably connected to a laser component (23), and the laser component (23) is fixedly connected to a gas detection component (24); The laser assembly (23) comprises a baffle (231), the outer side of the baffle (231) is rotatably connected to the sleeve rod (22), the inner side of the baffle (231) is fixedly connected to an infrared detection head (232), the top of the baffle (231) is fixedly connected to a universal head (233), the top of the universal head (233) is fixedly connected to a camera (234), and the end of the camera (234) close to the lens is fixedly connected to a protective cover (235); The blocking mechanism (1) comprises a hollow column (11), the top of the hollow column (11) is fixedly connected to a wire storage platform (21), the bottom of the hollow column (11) is fixedly connected to a support plate (19), the bottom of the support plate (19) is fixedly connected to a stabilizing mechanism (3), and the outer side of the hollow column (11) is fixedly connected to a control box (12); The hollow column (11) is internally slidably adapted to be equipped with a positioning claw (14), a filter (13) is placed at the bottom of the positioning claw (14), the filter (13) is fixedly connected to the outside of the hollow column (11), an inner frame rod (15) is fixedly connected to the center of the bottom of the positioning claw (14), a center slider (16) is fixedly connected to the bottom end of the inner frame rod (15), and the bottom of the center slider (16) is fixedly connected to the stabilizing mechanism (3); The stabilizing mechanism (3) comprises a folding plate (31), the outer side of the folding plate (31) is fixedly connected to a clamping plate (32), the tops of the folding plate (31) and the clamping plate (32) are fixedly connected to the support plate (19), the outer side of the clamping plate (32) is plugged with a double connecting rod (33), the outer side of the double connecting rod (33) is fixedly connected to a return spring (34), one end of the return spring (34) away from the double connecting rod (33) is fixedly connected to the clamping plate (32), the inner end of the double connecting rod (33) is slidably adapted to a limit position assembly (39), the outer side of the double connecting rod (33) is plugged with a rod frame (38), and the rod frame (38) is arranged inside the folding plate (31); A partition plate (35) is fixedly connected to the bottom of the inner cavity of the folding plate (31); a stabilizing component (36) is slidably adapted to be provided on the top of the partition plate (35); the stabilizing component (36) is fixedly connected to the inner side of the folding plate (31); a supporting foot (37) is fixedly connected to the bottom of the stabilizing component (36); the outer side of the stabilizing component (36) is rotatably connected to a limiting component (39); the limiting component (39) comprises a triangular tooth (391); an arc groove (392) is provided on the outer side of the triangular tooth (391); the interior of the arc groove (392) is slidably connected to the double connecting rod (33); and a limiting hole (393) is provided inside the arc groove (392); The stabilizing assembly (36) comprises a one-way slide (361), the top of the one-way slide (361) is fixedly connected to a top insertion rod (362), the top of the top insertion rod (362) is fixedly connected to the central slide block (16), the outer side of the one-way slide (361) is rotatably connected to a first hinge (363), the end of the first hinge (363) away from the one-way slide (361) is rotatably connected to a second hinge (364), the end of the second hinge (364) away from the first hinge (363) is fixedly connected to a support shaft (365), the support shaft (365) is fixedly connected to the inner side of the folding plate (31), and the outer side of the support shaft (365) is fixedly connected to the triangular tooth (391); The inner side of the folding plate (31) is rotatably connected to a No. 2 connecting member (368), and the end of the No. 2 connecting member (368) away from the folding plate (31) is rotatably connected to an outward support plate (367), the bottom of the outward support plate (367) is fixedly connected to the support foot (37), and the outer side of the outward support plate (367) is rotatably connected to a No. 1 connecting member (366), and the end of the No. 1 connecting member (366) away from the outward support plate (367) is fixedly connected to the support shaft (365).

2. The natural gas pipeline methane leakage laser monitoring device according to claim 1 is characterized by: The inner side of the hollow column (11) is fixedly connected to a vertical rail (10), the interior of the vertical rail (10) is slidably connected to a central slider (16), the outer side of the hollow column (11) is provided with a hole groove (17), the interior of the hole groove (17) is adapted to be equipped with a handle (18), and the inner end of the handle (18) is fixedly connected to the central slider (16).

3. The natural gas pipeline methane leakage laser monitoring device according to claim 1 is characterized by: The gas detection component (24) comprises a storage tube (241), the outer side of the storage tube (241) is fixedly connected to the retaining frame (231), the outer side of the storage tube (241) is fixedly connected to a lock buckle (242), the top of the lock buckle (242) is fixedly connected to a methane analyzer (243), the outer side of the methane analyzer (243) is fixedly connected to a circulation tube (244), the end of the circulation tube (244) away from the methane analyzer (243) is fixedly connected to an input tube (245), the outer side of the input tube (245) is fixedly connected to a collar (246), the input tube (245) and the collar (246) are both fixedly connected to the storage tube (241), and an internal component (247) is arranged inside the storage tube (241).

4. The natural gas pipeline methane leakage laser monitoring device according to claim 3 is characterized by: The internal component (247) comprises a motor (2471), the motor (2471) is fixedly connected to the inside of the storage tube (241), the output end of the motor (2471) is connected to a fan blade (2472) via a coupling, the outer side of the output end of the motor (2471) is fixedly connected to a rotating member (2473), the outer side of the rotating member (2473) is extruded and adapted with a tough sheet (2474), the upper and lower ends of the tough sheet (2474) are fixedly connected to a blocking plate (2475), and the blocking plate (2475) is inserted into the outer side of the circulation tube (244) and the storage tube (241).

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