Non-metal pipeline electric melting pipe fitting leakage monitoring equipment

Abstract

The invention relates to the technical field of pipeline leakage monitoring, in particular to nonmetal pipeline electric melting pipe fitting leakage monitoring equipment which comprises an adapter and a steel-plastic pipe, the steel-plastic pipe is used for transmitting natural gas, a leakage monitoring assembly is arranged on the outer side of the joint of the adapter and the steel-plastic pipe and comprises a protective pipe, and the protective pipe is connected with the adapter. A temperature sensor is arranged on the inner side of the protection pipe, and the temperature sensor, an air cylinder, an output rod, an outer fan blade, a bevel gear and other components are arranged, so that whether a leakage point exists at the joint of the steel-plastic pipe and the adapter or not can be indirectly judged through assistance of the temperature sensor; when a leakage point exists at the joint of the steel-plastic pipe and the adapter, the equipment controls the air cylinder to start, the output rod moves, the movement of the output rod enables the bevel gear to rotate, the rotation of the bevel gear drives the meshing gear to rotate, and therefore the elastic sleeve is extruded to form a first layer of sealing structure.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline leakage monitoring, and in particular to a non-metallic pipeline electric fusion pipe fitting leakage monitoring device. Background Art

[0002] As special connectors for converting between PE pipes and steel pipes, steel-plastic conversion fittings have the characteristics of low overall cost, good air tightness, superior corrosion resistance, easy installation and long service life. If the steel-plastic conversion fittings are selected properly, the comprehensive advantages of the product will be fully utilized to achieve the goals of safety, high efficiency, energy saving and environmental protection.

[0003] A leakage monitoring device for a gas pipeline with Chinese patent application number 201911305967.X comprises: a support rod and a sliding detection device; the support rod comprises a grip and a telescopic rod fixedly connected to the grip, and a detergent box is provided on the grip; the sliding detection device comprises a first arc plate and a second arc plate; an electric push rod is connected between the second arc plate and the telescopic rod; a plurality of retractable balls are provided on the inner wall of the second arc plate, and a plurality of limiting through holes cooperating with the balls and connected to the cavity are opened on the inner wall of the first arc plate. The device is used for detection after the pipeline is installed and cannot be used for continuous detection of the pipeline.

[0004] A gas leak monitoring device and monitoring method with Chinese patent application number 202311400584.7, the device includes an upper shell and a lower shell fixed on the gas pipeline to form an integrated monitoring space; a leakage monitoring component is arranged on the lower shell; a leakage processing component and a control box are arranged on the upper shell. The leakage monitoring end of the leakage monitoring component moves along the axial direction of the gas pipeline, monitors from both sides of the gas pipeline, and locates the leakage point, but the device cannot autonomously block the leakage point and diffuse the leaked natural gas to reduce the concentration after detecting the leakage point.

[0005] When laying household gas pipes, when the gas pipes meet a right-angled corner, it is often necessary to use an L-shaped adapter to assist, so that the two gas pipes can smoothly transition at the right-angled corner. However, there is a problem of narrow space at the inner right angle of the corner. Therefore, when the gas pipe and the adapter are hot-melt connected, processing defects are prone to occur, which makes it easy for leakage to occur after long-term use. Once a leak occurs at the connection between the gas pipe and the adapter, the adapter is located at the inner right angle of the corner, and air is difficult to circulate, which will make the natural gas concentration around the adapter too high, which will easily cause a fire and affect people's health. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a non-metallic pipeline electric fusion pipe fitting leakage monitoring device.

[0007] A non-metallic pipeline electric fusion pipe fitting leakage monitoring device of the present invention comprises an adapter and a steel-plastic pipe, wherein the steel-plastic pipe is used to transmit natural gas, and a leakage monitoring component is arranged on the outer side of the connection between the adapter and the steel-plastic pipe; The leakage monitoring assembly includes a protection tube, a temperature sensor is arranged inside the protection tube, elastic sleeves are arranged on the inner walls of both sides of the protection tube, glue is arranged inside the elastic sleeves, a cylinder is arranged at the inner corner of the protection tube, a bevel gear is arranged on the side of the cylinder away from the protection tube, and meshing gears meshing with the bevel gears are arranged on both sides of the protection tube; An output rod is provided at the output end of the cylinder, a turntable is provided on the side of the output rod away from the cylinder, inner blades are provided on the inner side of the turntable, outer blades are provided on the outer side of the turntable, a cavity is provided in the output rod, an opening is provided at the end of the output rod, a limit sleeve is provided in the cavity, a cover plate is provided on the side of the limit sleeve close to the opening, and a damping cylinder is provided between the cover plate and the limit sleeve.

[0008] By setting components such as temperature sensors, cylinders, output rods, outer fan blades and bevel gears, it is possible to indirectly determine whether there is a leak at the connection between the steel-plastic pipe and the adapter with the assistance of the temperature sensor. When the detection value of the temperature sensor is lower than the threshold, it indicates that there is a leak at the connection between the steel-plastic pipe and the adapter. At this time, the equipment controls the cylinder to start and move the output rod. The movement of the output rod will cause the bevel gear to rotate, and the rotation of the bevel gear will drive the rotation of the meshing gear, so that the elastic sleeve is squeezed to form the first layer of sealing structure. If the detection value of the temperature sensor is still lower than the threshold, it indicates that the first layer of sealing structure fails. At this time, the cylinder continues to operate, causing the elastic sleeve to be squeezed and broken, causing the glue in the elastic sleeve to spray out, and the elastic sleeve and the glue are used to form a first layer of sealing structure. A second-layer sealing structure is formed, and in this process, with the assistance of the first gear and the second gear, the outer blades rotate to generate wind force, and under the action of wind force, the leaked natural gas can be quickly diffused to reduce the concentration, and the wind force can also make the glue solidify quickly. If the detection value of the temperature sensor is still lower than the threshold, it indicates that the leakage point is too large to be sealed. At this time, the equipment control performs a fire avoidance operation to move the output rod to the limit. At this time, the opening sprays inert gas to rotate the outer blades. The rotation of the outer blades can cool the area around the adapter on the one hand, and on the other hand, with the assistance of the rotation of the outer blades, the inert gas and natural gas are mixed to reduce the risk of fire, and the wind force can also quickly diffuse the leaked natural gas to reduce its harm.

[0009] Preferably, external threads are provided on both sides of the protection tube, and internal threads are provided on the inner side of the meshing gear. The meshing gear is threadedly matched with the external threads on both sides of the protection tube, and the diameter of the external threads on both sides of the protection tube gradually increases from the center of the protection tube to the outside.

[0010] Preferably, the adapter and the steel-plastic pipe are connected by hot-melt connection, the protective pipe is located outside the adapter, the adapter is L-shaped, and the elastic sleeve is located outside the steel-plastic pipe.

[0011] Preferably, a connecting rod is provided on the protective tube, a mounting plate is provided at the end of the connecting rod, the bevel gear is rotatably provided on the mounting plate, a screw is provided in the middle section of the output rod, an engaging thread is provided on the inner side of the bevel gear, and the output rod and the bevel gear are threadably matched through the screw and the engaging thread.

[0012] Preferably, a support rod is provided on the side of the mounting plate away from the protective tube, an annular sleeve is provided at the end of the support rod, the turntable is rotatably provided on the annular sleeve, a cross rod is provided inside the annular sleeve, and a push rod is provided on the side of the cross rod close to the output rod.

[0013] Preferably, a transmission gear is provided on the turntable, a rotating shaft is rotatably provided on the connecting rod, a first gear is provided on a side of the rotating shaft close to the turntable, and a groove is provided on a side of the bevel gear close to the turntable.

[0014] Preferably, a gear ring is arranged inside the groove, a second gear is arranged on the side of the rotating shaft close to the bevel gear, the transmission gear is meshed with the first gear for transmission, and the second gear is meshed with the gear ring for transmission.

[0015] Preferably, the inclination angles of the inner blades and the outer blades are opposite, the cavity is connected to the cylinder, an inert gas is arranged in the cylinder, the position of the push rod corresponds to the opening, and the length of the push rod is greater than the depth of the opening.

[0016] Preferably, a bracket is provided between the protective tube and the adapter, and the thickness of the elastic sleeve on one side close to the adapter is smaller than that on the other side. After the elastic sleeve is squeezed and damaged, the glue in the elastic sleeve will be sprayed between the adapter and the elastic sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with components such as a temperature sensor, a cylinder, an output rod and a bevel gear. With the assistance of the temperature sensor, it is possible to indirectly determine whether there is a leakage point at the connection between the steel-plastic pipe and the adapter. When the detection value of the temperature sensor is lower than the threshold value, it indicates that there is a leakage point at the connection between the steel-plastic pipe and the adapter. At this time, the device controls the cylinder to start and move the output rod. The movement of the output rod will cause the bevel gear to rotate, and the rotation of the bevel gear will drive the rotation of the meshing gear, so that the elastic sleeve is squeezed to form a first layer of sealing structure, and in this process, with the assistance of the first gear and the second gear, the outer fan blades rotate to generate wind force, and under the action of the wind force, the leaked natural gas can be quickly diffused to reduce the concentration.

[0018] 2. The present invention is provided with components such as a temperature sensor, a cylinder, an output rod and a bevel gear. If the detection value of the temperature sensor is still lower than the threshold value, it indicates that the first layer of sealing structure has failed. At this time, the cylinder continues to operate, so that the elastic sleeve is squeezed and the glue in the elastic sleeve is sprayed out. The second layer of sealing structure is formed with the assistance of the elastic sleeve and the glue. In this process, with the assistance of the first gear and the second gear, the outer fan blades rotate to generate wind force. Under the action of wind force, the leaked natural gas can be quickly diffused to reduce the concentration, and the wind force can also quickly solidify the glue.

[0019] 3. The present invention is provided with components such as a temperature sensor, a cylinder, an output rod, outer blades and a bevel gear. If the detection value of the temperature sensor is always lower than the threshold value, it indicates that the leakage point is too large to be blocked. At this time, the equipment control performs a fire avoidance operation to move the output rod to the limit. At this time, the opening sprays inert gas to rotate the outer blades. The rotation of the outer blades can cool the area around the adapter on the one hand, and on the other hand, the inert gas and natural gas are mixed with the assistance of the rotation of the outer blades to reduce the risk of fire. In addition, the wind can also make the leaked natural gas spread quickly to reduce its harm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of another viewing angle of the present invention; Figure 3 It is a schematic diagram of the structure of components such as bevel gears and cylinders of the present invention; Figure 4 It is a schematic diagram of the structure of the adapter and the outer fan blades and other components of the present invention; Figure 5 It is a schematic diagram of the structure of the cavity, opening and other components of the present invention.

[0021] : 1. adapter; 2. steel-plastic pipe; 3. leakage monitoring component; 301. protective pipe; 302. elastic sleeve; 303. cylinder; 304. bevel gear; 305. meshing gear; 306. output rod; 307. turntable; 308. inner blade; 309. outer blade; 310. cavity; 311. opening; 312. limit sleeve; 313. cover plate; 314. damping cylinder; 315. external thread; 316. connecting rod; 317. mounting plate; 318. support rod; 319. annular sleeve; 320. cross bar; 321. push rod; 322. transmission gear; 323. rotating shaft; 324. first gear; 325. groove; 326. second gear. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] During the use of the present invention, when the household gas is laid, when the steel-plastic pipe 2 encounters a right-angled corner, an L-shaped adapter 1 is often needed to assist so that the two steel-plastic pipes 2 can smoothly transition at the right-angled corner. However, the inner right angle of the corner is prone to narrow space. Therefore, when the steel-plastic pipe 2 and the adapter 1 are hot-melt connected, processing defects are prone to occur, which makes it prone to leakage after long-term use. Once the connection between the steel-plastic pipe 2 and the adapter 1 leaks, the adapter 1 is located at the inner right angle of the corner, and air is difficult to circulate, which will make the natural gas concentration around the adapter 1 too high, which is easy to cause fire and affect the health of people. Therefore, the following technical solutions are proposed: like Figures 1 to 4 As shown, a non-metallic pipeline electric fusion pipe leakage monitoring device of the present invention includes an adapter 1 and a steel-plastic pipe 2, the steel-plastic pipe 2 is used to transmit natural gas, a leakage monitoring component 3 is arranged on the outer side of the connection between the adapter 1 and the steel-plastic pipe 2, the adapter 1 and the steel-plastic pipe 2 are connected by hot-melt, the adapter 1 is L-shaped, and the two steel-plastic pipes 2 are connected with the assistance of the L-shaped adapter 1, so that the transition of the steel-plastic pipe 2 during the connection process is smoother, and the steel-plastic pipe 2 and the adapter 1 are connected by hot-melt, which is convenient to operate and has good sealing performance. The connection between the adapter 1 and the steel-plastic pipe 2 can be tested for sealing performance with the assistance of the leakage monitoring component 3. When the steel-plastic pipe 2 is used to transport natural gas, the leakage monitoring component 3 can continuously monitor whether the connection is leaking.

[0024] like Figures 1 to 5 As shown, the leakage monitoring component 3 includes a protective tube 301, and a temperature sensor is arranged on the inner side of the protective tube 301. When there is a leakage point at the connection between the adapter 1 and the steel-plastic pipe 2, natural gas will be discharged outward from the leakage point, thereby accelerating the gas flow rate at the leakage point. The accelerated gas flow rate will take away the heat at the leakage point, thereby reducing the temperature at the leakage point. At this time, the detection of the temperature sensor can indirectly determine whether there is a leakage point.

[0025] Elastic sleeves 302 are arranged on the inner walls of both sides of the protective tube 301, glue is arranged in the elastic sleeves 302, meshing gears 305 meshing with the bevel gear 304 are arranged on both sides of the protective tube 301, external threads 315 are arranged on both sides of the protective tube 301, and internal threads are arranged on the inner sides of the meshing gears 305. The meshing gears 305 are threadedly matched with the external threads 315 on both sides of the protective tube 301, and the diameters of the external threads 315 on both sides of the protective tube 301 gradually increase from the center side of the protective tube 301 to the outside. When it is found through indirect detection of the temperature sensor that there is a leakage point between the adapter 1 and the steel-plastic tube 2, the meshing gears 305 need to be rotated quickly at this time, and the internal threads of the meshing gears 305 are meshed with the external threads 315 on both sides of the protective tube 301. The meshing gear 305 is threadedly matched to move toward the steel-plastic pipe 2. Since the inner diameter of the meshing gear 305 remains unchanged, the diameter of the external threads 315 on both sides of the protective pipe 301 gradually increases from the center of the protective pipe 301 to the outside. Therefore, as the meshing gear 305 moves, the end of the protective pipe 301 will gradually approach the steel-plastic pipe 2, and then the elastic sleeve 302 will be squeezed by the steel-plastic pipe 2 and the protective pipe 301. After the elastic sleeve 302 is crushed, the sealing glue in the elastic sleeve 302 will be squeezed out, and then the space between the protective pipe 301 and the steel-plastic pipe 2 will be filled with glue. At this time, due to the assistance of the elastic sleeve 302 and the glue, a sealing structure is formed between the protective pipe 301 and the steel-plastic pipe 2, thereby reducing the leakage of gas in the steel-plastic pipe 2.

[0026] A cylinder 303 is provided at the inner corner of the protection tube 301. The cylinder 303 is connected to an external air pump, and the air pump is placed in a safe position. A bevel gear 304 is provided on the side of the cylinder 303 away from the protection tube 301. An output rod 306 is provided at the output end of the cylinder 303. A screw is provided in the middle of the output rod 306. A meshing thread is provided on the inner side of the bevel gear 304. The output rod 306 and the bevel gear 304 are threadedly matched through the screw and the meshing thread. A connecting rod 316 is provided on the protection tube 301. A mounting plate 317 is provided at the end of the connecting rod 316. The bevel gear 304 is rotatably provided on the mounting plate 317. After the cylinder 303 is started, the cylinder The output rod 306 of 303 will extend, and a screw is provided in the middle section of the output rod 306, and there is an engaging thread on the inner side of the bevel gear 304. Therefore, during the movement of the output rod 306, the bevel gear 304 is rotated through the cooperation of the screw and the engaging thread. When the bevel gear 304 rotates, it will mesh with the engaging gear 305, so that the engaging gear 305 is rotated. Therefore, the rotation of the engaging gear 305 can be powered by the assistance of the cylinder 303, so that the rotation of the engaging gear 305 is stable and controllable, and in this process, the flow of gas is used as a driving force to reduce the electric sparks generated when the equipment is started, thereby reducing the risk of explosion.

[0027] A rotating disk 307 is provided on the side of the output rod 306 away from the cylinder 303, an inner fan blade 308 is provided on the inner side of the rotating disk 307, an outer fan blade 309 is provided on the outer side of the rotating disk 307, a cavity 310 is provided in the output rod 306, an opening 311 is provided at the end of the output rod 306, a limiting sleeve 312 is provided in the cavity 310, a cover plate 313 is provided on the side of the limiting sleeve 312 close to the opening 311, a damping cylinder 314 is provided between the cover plate 313 and the limiting sleeve 312, a support rod 318 is provided on the side of the mounting plate 317 away from the protective tube 301, an annular sleeve 319 is provided on the end of the support rod 318, the rotating disk 307 is rotatably provided on the annular sleeve 319, a cross bar 320 is provided on the inner side of the annular sleeve 319, and a push rod 321 is provided on the side of the cross bar 320 close to the output rod 306. The start of the cylinder 303 will cause the output rod 306 to rotate. 306 moves toward the direction of the turntable 307. During the movement of the output rod 306, the push rod 321 will contact the cover plate 313. As the output rod 306 moves, the push rod 321 will push the cover plate 313 open, so that the cover plate 313 overcomes the action of the damping cylinder 314 and moves in the direction away from the opening 311, thereby allowing the inert gas in the cylinder 303 to enter the cavity 310, and then the gas in the cavity 310 is discharged through the opening 311. When the opening 311 discharges the gas, it acts on the inner blades 308 to rotate the inner blades 308. The rotation of the inner blades 308 will drive the rotation of the outer blades 309 with the assistance of the turntable 307, and the rotation of the outer blades 309 will drive the flow of air around the adapter 1, so that the leaked natural gas can begin to diffuse and reduce the concentration, thereby reducing the harm of high-concentration natural gas.

[0028] The protective tube 301 is located on the outside of the adapter 1, and the elastic sleeve 302 is located on the outside of the steel-plastic tube 2. A bracket is arranged between the protective tube 301 and the adapter 1. The thickness of the elastic sleeve 302 on one side close to the adapter 1 is smaller than that on the other side. After the elastic sleeve 302 is squeezed and damaged, the glue in the elastic sleeve 302 will be sprayed between the adapter 1 and the elastic sleeve 302. When the elastic sleeve 302 is squeezed and broken, the damaged position of the elastic sleeve 302 is close to the side of the adapter 1. Therefore, the glue in the elastic sleeve 302 will be sprayed on the side close to the adapter 1, and the glue will also be sprayed on the leakage point, thereby performing auxiliary sealing to reduce the leakage of gas.

[0029] The rotating disk 307 is provided with a transmission gear 322, and a rotating shaft 323 is rotatably provided on the connecting rod 316. A first gear 324 is provided on the side of the rotating shaft 323 close to the rotating disk 307, and a groove 325 is provided on the side of the bevel gear 304 close to the rotating disk 307. A gear ring is provided inside the groove 325, and a second gear 326 is provided on the side of the rotating shaft 323 close to the bevel gear 304. The transmission gear 322 is meshed with the first gear 324 for transmission, and the second gear 326 is meshed with the gear ring for transmission. When the output rod 306 moves to rotate the bevel gear 304, the bevel gear 304 is rotated. The rotation of the gear 304 drives the rotation of the gear ring, and the rotation of the gear ring drives the rotation of the second gear 326 through meshing. The rotation of the second gear 326 drives the rotation of the first gear 324 through the assistance of the rotating shaft 323. The rotation of the first gear 324 drives the rotation of the transmission gear 322 through meshing, thereby rotating the turntable 307. Therefore, the movement of the output rod 306 drives the rotation of the turntable 307, thereby rotating the outer fan blades 309, causing the air near the adapter 1 to flow, so that the leaked natural gas can be quickly diffused to reduce the concentration.

[0030] The inclination angles of the inner blades 308 and the outer blades 309 are opposite, the cavity 310 is connected to the cylinder 303, an inert gas is arranged in the cylinder 303, the position of the push rod 321 corresponds to the opening 311, and the length of the push rod 321 is greater than the depth of the opening 311, and the inert gas sprayed from the opening 311 acts on the inner blades 308, thereby causing the outer blades 309 to rotate. Since the inclination angles of the inner blades 308 and the outer blades 309 are opposite, the rotation of the outer blades 309 will cause the gas to move toward the direction of the adapter 1, so that the leaked natural gas can be quickly diffused, and the gas will also act on the protective tube 301, so that the glue between the protective tube 301 and the steel-plastic tube 2 will quickly cool down and solidify.

[0031] During the use of the present invention, after the steel-plastic pipe 2 and the adapter 1 are connected by hot-melt connection, with long-term use, leakage points will inevitably appear at the connection between the steel-plastic pipe 2 and the adapter 1. The leakage points will discharge natural gas, and the gas flow rate at the leakage points will accelerate. At this time, the leakage point can be indirectly judged with the assistance of the temperature sensor. That is, when the detection value of the temperature sensor is lower than the threshold value, it indicates that a leakage point has occurred at the connection between the steel-plastic pipe 2 and the adapter 1. The threshold value depends on the external temperature. When the external temperature changes, the threshold value will change accordingly.

[0032] During normal use of the steel-plastic pipe 2 and the adapter 1, when the detection value of the temperature sensor is lower than the threshold value, it indicates that a leakage point has occurred at the connection between the steel-plastic pipe 2 and the adapter 1. At this time, the device will send out an alarm signal, and at the same time, the device control makes the cylinder 303 start to operate. After the cylinder 303 is started, the output rod 306 of the cylinder 303 will extend. After the output rod 306 is inserted into the bevel gear 304, the screw in the middle section of the output rod 306 cooperates with the meshing thread on the inner side of the bevel gear 304. Therefore, the movement of the output rod 306 will drive the rotation of the bevel gear 304, and the bevel gear 304 will rotate with the meshing gear 305 during the rotation. The rotation of the meshing gear 305 is driven by the internal thread of the meshing gear 305. Cooperating with the external thread 315 on the outside of the protective tube 301, the meshing gear 305 moves along the protective tube 301 towards the steel-plastic tube 2, and since the diameter of the external thread 315 on both sides of the protective tube 301 gradually increases from the center of the protective tube 301 to the outside, as the meshing gear 305 moves, the distance between the protective tube 301 and the steel-plastic tube 2 will gradually decrease. Therefore, the elastic sleeve 302 will be gradually squeezed, and after the elastic sleeve 302 is squeezed and deformed, a first layer of seal is formed between the steel-plastic tube 2 and the protective tube 301. After the first layer of seal is formed, if the detection value of the temperature sensor is still lower than the threshold value, it indicates that the first layer of seal cannot prevent the leakage of gas. Therefore, the cylinder 303 still remains in operation.

[0033] As the output rod 306 continues to move, the elastic sleeve 302 is continuously squeezed. After the elastic sleeve 302 is squeezed and ruptured, the rupture position of the elastic sleeve 302 is close to one side of the adapter 1. After the elastic sleeve 302 ruptures, the glue in the elastic sleeve 302 will spray between the steel-plastic pipe 2 and the protective pipe 301, and part of the glue will also spray at the leakage point. At this time, through the dual effects of the glue and the elastic sleeve 302, the protective pipe 301, the steel-plastic pipe 2, the elastic sleeve 302 and the glue form a second layer of seal, thereby preventing the leakage of natural gas.

[0034] When the output rod 306 moves to rotate the bevel gear 304, the rotation of the bevel gear 304 will drive the rotation of the gear ring, and the rotation of the gear ring will drive the rotation of the second gear 326 through the meshing transmission, and the rotation of the second gear 326 will drive the rotation of the first gear 324 through the rotating shaft 323, and the rotation of the first gear 324 will drive the rotation of the transmission gear 322 through the meshing transmission, and the rotation of the transmission gear 322 will drive the rotation of the turntable 307, and the rotation of the turntable 307 will drive the rotation of the outer fan blades 309, and the rotation of the outer fan blades 309 will generate wind force, and the air near the adapter 1 will flow with the assistance of the wind force, so that the leaked natural gas can be quickly diffused to reduce the concentration, thereby reducing the harm of the gas, and due to the flow of air near the adapter 1, the glue between the protective tube 301 and the steel-plastic tube 2 can also solidify quickly, so that the second layer of sealing can be completed quickly, reducing the leakage of gas.

[0035] As the second seal is formed, when the detection value of the temperature sensor is still lower than the threshold, it indicates that the gas leakage cannot be blocked. In order to avoid fire caused by natural gas leakage, at this time, the cylinder 303 continues to operate, so that the output rod 306 moves to the limit state. At this time, the output rod 306 no longer moves, and the push rod 321 will push open the cover plate 313, so that the cover plate 313 overcomes the effect of the damping cylinder 314 and moves away from the opening 311. The inert gas in the cylinder 303 will enter the cavity 310, and the inert gas in the cavity 310 will be discharged from the opening 311. The inert gas ejected from the opening 311 will act on the inner fan blade 308, causing the inner fan blade 308 to rotate. The rotation of the inner blades 308 will drive the rotation of the outer blades 309 with the assistance of the turntable 307, and because the inclination angles of the inner blades 308 and the outer blades 309 are opposite, the wind generated by the rotation of the outer blades 309 will move toward the direction of the adapter 1. At this time, the leaked natural gas will be diffused under the action of wind to reduce the concentration and reduce the risk of fire caused by natural gas. The inert gas sprayed from the opening 311 will also be mixed with the natural gas under the action of wind, further reducing the concentration of natural gas and reducing the risk of fire. At the same time, the adapter 1 and the steel-plastic pipe 2 can be cooled under the action of wind to avoid the occurrence of fire, thereby improving the safety of equipment use.

[0036] The main functions realized by the present invention are: by setting components such as temperature sensors, cylinders 303, output rods 306, outer blades 309 and bevel gears 304, it is possible to indirectly determine whether there is a leakage point at the connection between the steel-plastic pipe 2 and the adapter 1 with the assistance of the temperature sensor. When the detection value of the temperature sensor is lower than the threshold value, it indicates that there is a leakage point at the connection between the steel-plastic pipe 2 and the adapter 1. At this time, the device controls the cylinder 303 to start, so that the output rod 306 moves. The movement of the output rod 306 will cause the bevel gear 304 to rotate, and the rotation of the bevel gear 304 will drive the rotation of the meshing gear 305, so that the elastic sleeve 302 is squeezed to form a first layer of sealing structure. If the detection value of the temperature sensor is still lower than the threshold value, it indicates that the first layer of sealing structure fails. At this time, the cylinder 303 continues to operate, so that the elastic sleeve 302 is squeezed and broken, so that the glue in the elastic sleeve 302 The second layer of sealing structure is formed by the elastic sleeve 302 and the glue, and in this process, the outer blades 309 are rotated to generate wind force with the assistance of the first gear 324 and the second gear 326. Under the action of the wind force, the leaked natural gas can be quickly diffused to reduce the concentration, and the wind force can also make the glue solidify quickly. If the detection value of the temperature sensor is still lower than the threshold, it indicates that the leakage point is too large to be blocked. At this time, the equipment control performs a fire avoidance operation to move the output rod 306 to the limit. At this time, the opening 311 sprays inert gas to rotate the outer blades 309. The rotation of the outer blades 309 can cool down the area around the adapter 1 on the one hand, and on the other hand, with the assistance of the rotation of the outer blades 309, the inert gas and natural gas are mixed to reduce the risk of fire, and the wind force can also make the leaked natural gas quickly diffuse to reduce its harm.

[0037] The non-metallic pipeline electric fusion pipe fitting leakage detection device of the present invention has common mechanical installation methods, connection methods or setting methods, and can be implemented as long as it can achieve its beneficial effects.

[0038] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A non-metallic pipeline electric fusion pipe leakage monitoring device, comprising an adapter (1) and a steel-plastic pipe (2), characterized in that: The steel-plastic pipe (2) is used to transmit natural gas, and a leakage monitoring component (3) is arranged on the outer side of the connection between the adapter (1) and the steel-plastic pipe (2); The leakage monitoring assembly (3) comprises a protection tube (301), a temperature sensor is arranged inside the protection tube (301), elastic sleeves (302) are arranged on the inner walls of both sides of the protection tube (301), glue is arranged inside the elastic sleeves (302), a cylinder (303) is arranged at the inner corner of the protection tube (301), a bevel gear (304) is arranged on the side of the cylinder (303) away from the protection tube (301), and meshing gears (305) meshing with the bevel gears (304) are arranged on both sides of the protection tube (301); An output rod (306) is provided at the output end of the cylinder (303); a rotating disk (307) is provided on a side of the output rod (306) away from the cylinder (303); inner fan blades (308) are provided on the inner side of the rotating disk (307); outer fan blades (309) are provided on the outer side of the rotating disk (307); a cavity (310) is provided in the output rod (306); an opening (311) is provided at the end of the output rod (306); a limiting sleeve (312) is provided in the cavity (310); a cover plate (313) is provided on a side of the limiting sleeve (312) close to the opening (311); and a damping cylinder (314) is provided between the cover plate (313) and the limiting sleeve (312).

2. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 1, characterized in that: External threads (315) are provided on both sides of the protection tube (301), and internal threads are provided on the inner side of the meshing gear (305). The meshing gear (305) is threadably matched with the external threads (315) on both sides of the protection tube (301), and the diameters of the external threads (315) on both sides of the protection tube (301) gradually increase from the center of the protection tube (301) to the outside.

3. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 1, characterized in that: The adapter (1) and the steel-plastic pipe (2) are connected by hot-melt connection, the protective pipe (301) is located outside the adapter (1), the adapter (1) is L-shaped, and the elastic sleeve (302) is located outside the steel-plastic pipe (2).

4. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 1, characterized in that: The protective tube (301) is provided with a connecting rod (316), the end of the connecting rod (316) is provided with a mounting plate (317), the bevel gear (304) is rotatably mounted on the mounting plate (317), a screw is provided at the middle section of the output rod (306), an engaging thread is provided on the inner side of the bevel gear (304), and the output rod (306) and the bevel gear (304) are threadably matched via the screw and the engaging thread.

5. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 4, characterized in that: A support rod (318) is provided on a side of the mounting plate (317) away from the protective tube (301); an annular sleeve (319) is provided at the end of the support rod (318); the rotating plate (307) is rotatably disposed on the annular sleeve (319); a cross rod (320) is provided inside the annular sleeve (319); and a top rod (321) is provided on a side of the cross rod (320) close to the output rod (306).

6. The non-metallic pipeline electric fusion pipe leakage monitoring device according to claim 4, characterized in that: The rotating disk (307) is provided with a transmission gear (322), the connecting rod (316) is rotatably provided with a rotating shaft (323), a first gear (324) is provided on a side of the rotating shaft (323) close to the rotating disk (307), and a groove (325) is provided on a side of the bevel gear (304) close to the rotating disk (307).

7. The non-metallic pipeline electric fusion pipe leakage monitoring device according to claim 6, characterized in that: A gear ring is provided inside the groove (325); a second gear (326) is provided on a side of the rotating shaft (323) close to the bevel gear (304); the transmission gear (322) meshes with the first gear (324) for transmission; and the second gear (326) meshes with the gear ring for transmission.

8. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 5, characterized in that: The inner fan blades (308) and the outer fan blades (309) have opposite inclination angles, the cavity (310) is in communication with the cylinder (303), an inert gas is provided in the cylinder (303), the position of the push rod (321) corresponds to the opening (311), and the length of the push rod (321) is greater than the depth of the opening (311).

9. The non-metallic pipeline electric fusion pipe fitting leakage monitoring device according to claim 1, characterized in that: A bracket is provided between the protective tube (301) and the adapter (1); the thickness of the elastic sleeve (302) on one side close to the adapter (1) is smaller than that of the other side; after the elastic sleeve (302) is squeezed and damaged, the glue in the elastic sleeve (302) will be sprayed between the adapter (1) and the elastic sleeve (302).

Images