Petroleum pipeline sealing performance detection device

Abstract

The invention relates to the technical field of pipeline detection, in particular to a petroleum pipeline sealing performance detection device which comprises a matching round pipe, the left end and the right end of the matching round pipe fixedly communicate with sliding pipes, the outer wall of each sliding pipe is fixedly provided with an inflation detection mechanism, and the outer wall of the sliding pipe at the right end of the matching round pipe is fixedly connected with a first elastic telescopic rod. A first connecting box is fixedly connected to the output end of the first elastic telescopic rod, an alarm mechanism is fixedly connected into the first connecting box, a mounting base is arranged on the left side of the matching round pipe, a third recycling wheel is connected into the mounting base, a high-power air pump is further arranged on the left side of the third recycling wheel, and an air outlet of the high-power air pump fixedly communicates with a first ventilation pipe. The outer wall of the first ventilation pipe is wound around the outer wall of the third recovery wheel, and the end, away from the high-power air pump, of the first ventilation pipe fixedly communicates with the matched round pipe to rapidly detect whether leakage occurs or not.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection, in particular to a petroleum pipeline sealing detection device. Background Art

[0002] Traditional methods for testing the tightness of oil pipelines mainly include pressure testing and liquid penetration testing. The pressure testing method is to fill the pipeline with liquid or gas at a certain pressure, and then observe the pressure changes to determine whether the pipeline is leaking. However, this method is not sensitive enough for detecting tiny leaks, and it is difficult to determine the specific location of the leak. The liquid penetration method requires applying the test liquid to the surface of the pipeline and judging whether there is a leak by observing the liquid penetration. However, this method is cumbersome to operate, has low detection efficiency, and is not suitable for pipelines in operation.

[0003] With the continuous development of the oil industry, the pipeline network is becoming increasingly large and complex, which puts forward higher requirements on the accuracy, efficiency and real-time performance of pipeline sealing detection. During the oil transportation process, once the pipeline ruptures and leaks, it will not only cause a huge waste of oil resources, but also bring serious environmental pollution and safety hazards, such as fire and explosion. Therefore, there is an urgent need for a new type of oil pipeline sealing detection device that can quickly and accurately detect whether the pipeline is ruptured and locate the rupture position in time, so as to ensure the safe operation of the oil pipeline and improve the reliability and efficiency of oil transportation.

[0004] After searching, it was found that the prior art publication number is CN118067335A, which discloses a petroleum pipeline sealing detection device, including a symmetrical No. 1 support seat, a rotating rod is installed between the symmetrical No. 1 support seat supports, two groups of annularly distributed No. 1 rotating arms are installed on the rotating rod, and a rectangular frame is installed on the other end of the No. 1 rotating arm, a symmetrical No. 2 support seat is installed on the outer side of the symmetrical No. 1 support seat, and a grinder body is installed on the top of the symmetrical No. 2 support seat, a bracket is installed on one side of the No. 1 support seat, a symmetrical support plate is installed inside the bracket, a fixed seat is installed on one side of the support plate, and a rubber gasket is installed on the other side of the fixed seat, and a pressure pump is installed on one side of the fixed seat at one end of the screw rod, the symmetrical fixed seat is used to clamp and fix the petroleum pipeline, the rubber gasket is used to seal the pipeline mouth, and the pressure pump is used to pressurize the inside of the petroleum pipeline, and whether the pipeline is leaking is detected by judging the pressure change in the pipeline.

[0005] Therefore, based on the above search and in combination with the existing ones, when the above scheme is used, a symmetrical fixed seat is used to clamp the pipe, a rubber gasket is used to seal it, and a pressure pump is used to pressurize it and leaks are detected based on pressure changes. However, when encountering long pipelines, due to the large volume, pressure conduction and stabilization take a long time, the detection efficiency is low, the pressure loss is large, the changes are difficult to measure accurately, and it is difficult to monitor and locate multiple parts. It cannot meet the requirements for long pipe detection, its application is limited, and it is not conducive to the safe operation and maintenance of pipelines. For this reason, we propose a petroleum pipeline sealing detection device. Summary of the invention

[0006] The purpose of the present invention is to provide a petroleum pipeline sealing detection device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A petroleum pipeline sealing detection device comprises a matching round tube, both left and right ends of the matching round tube are fixedly connected with sliding tubes, an inflation detection mechanism is fixedly installed on the outer wall of each sliding tube, a first elastic telescopic rod is fixedly connected to the outer wall of the sliding tube at the right end of the matching round tube, a first connection box is fixedly connected to the output end of the first elastic telescopic rod, an alarm mechanism is fixedly connected inside the first connection box, and a mounting seat is arranged on the left side of the matching round tube; A third recovery wheel is connected to the inside of the mounting seat, and a high-power air pump is also arranged on the left side of the third recovery wheel. The air outlet of the high-power air pump is fixedly connected to a first ventilation pipe, and the outer wall of the first ventilation pipe is wound on the outer wall of the third recovery wheel. The end of the first ventilation pipe away from the high-power air pump is fixedly connected to a matching circular pipe.

[0008] As a further embodiment of the present invention, the inflation detection mechanism includes a first movable plate, which is slidably connected to the outer wall of the sliding tube, and the first movable plate and the matching circular tube are fixedly connected via a plurality of second elastic telescopic rods. A folding rubber tube is also fixedly connected between the first movable plate and the matching circular tube, and the first movable plate and the sliding tube are also rotatably connected via a plurality of rotating arms.

[0009] As a further feature of the present invention, the outer wall of the rotating arm is rotatably connected to a connecting block, and the end of the connecting block away from the rotating arm is fixedly connected to a rubber rope. A rubber ball sleeve is also fixedly connected between the first movable plate and the sliding tube, and the end of each rubber rope away from the connecting block is fixedly connected to the inner wall of the rubber ball sleeve.

[0010] As a further feature of the present invention, a plurality of second ventilation tubes are fixedly connected between the mating circular tube and the inner wall of a sliding tube on the left side, the outer wall of the rubber rope is fixedly connected to a connecting circular tube, and the inside of the connecting circular tube is connected to an abutment plug with a reset function, and the bottom of the abutment plug abuts against the outer wall of the connecting circular tube.

[0011] As a further feature of the present invention, the alarm mechanism includes a limit circular box, which is fixedly connected to the inner wall of the first connecting box via a fourth elastic telescopic rod, the outer wall of the first elastic telescopic rod is rotatably connected to a second recovery wheel with a reset function, the outer wall of the second recovery wheel is wound with a third connecting rope, the inner wall of the output end of the fourth elastic telescopic rod is fixedly connected to the first connecting rope, the first connecting rope and the third connecting rope are fixedly connected via a telescopic arm, the output end of the fourth elastic telescopic rod is fixedly connected to the limit circular box, and the outer wall of the first connecting box is rotatably connected to the second abutment wheel.

[0012] As a further feature of the present invention, a plurality of fifth elastic telescopic rods are fixedly connected to one end of the second abutment wheel close to the first connecting box, and the output end of the fifth elastic telescopic rod is rotatably connected to the first abutment wheel, a first connecting ring is fixedly connected to the inner wall of the first connecting box, and the bottom end of the inner wall of the first connecting box is rotatably connected to the first recovery wheel with a reset function via a rotating shaft, a second connecting rope is wound around the outer wall of the first recovery wheel, a free end of the second connecting rope is fixedly connected to the inner wall of the first connecting ring, and the outer wall of the second connecting rope abuts against the inner wall of the first connecting ring.

[0013] As a further feature of the present invention, the inner wall of the first connecting ring is rotatably connected to a limit bending arc block with a reset function, the first connecting ring is located outside the limit circular box, the inner wall of the first connecting box is also fixedly connected to a second connecting ring, the inner wall of the second connecting ring is fixedly connected to a plurality of triangular blocks, the outer wall of the first abutment wheel abuts against the inner wall of the second connecting ring, the interior of the second connecting ring is fixedly connected to a plurality of second connecting boxes, the interior of the second connecting ring is filled with silicone oil, and the interior of the second connecting box is slidably connected to an abutment rod with a reset function.

[0014] As a further feature of the present invention, the outer wall of the abutment rod is fixedly connected to a second movable plate, and the second movable plate is slidably connected to the inner wall of the second connecting box, the second movable plate and the second connecting box are fixedly connected by two elastic springs, two groups of liquid permeable holes are provided inside the second movable plate, the end of the abutment rod away from the fifth elastic telescopic rod is fixedly connected to an electric heating cutting tooth, the outer wall of the electric heating cutting tooth abuts against the inner wall of the limiting circular box, the outer wall of the first recovery wheel is fixedly connected to a rotating round block, and the outer wall of the rotating round block is fixedly connected to a number of knocking balls, the bottom end of the inner wall of the first connecting box is also fixedly connected to a sixth elastic telescopic rod, and the upper end of the sixth elastic telescopic rod is fixedly connected to a bell.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. High-pressure gas will enter between the two sets of rubber ball sleeves. Since the outer wall of the rubber ball sleeve abuts against the inner wall of the pipe, the gas will be discharged through all the second ventilation pipes. When the high-pressure gas is discharged from the second ventilation pipe, there will be a thrust on the whole. At this time, the whole device will move, and the discharge thrust makes the device move, simplifying the structure, reducing costs and failure risks, adapting to a variety of pipe diameters and environments, expanding the detection range, and cleaning impurities to ensure accuracy, thereby improving detection efficiency and quality.

[0016] 2. The first recovery wheel will drive the rotating circular plate and all the knocking balls to rotate. The knocking balls will knock on the bells and sound an alarm, which can better make sounds and quickly locate the bells. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a petroleum pipeline sealing detection device; Figure 2 This is a schematic diagram of the internal structure of a rubber ball sleeve of a petroleum pipeline sealing detection device; Figure 3 This is a schematic diagram of the position structure of a rotating arm of a petroleum pipeline sealing detection device; Figure 4 This is a schematic diagram of the position structure of the second ventilation pipe of a petroleum pipeline sealing detection device; Figure 5 This is a schematic diagram of the internal structure of a connecting round pipe of a petroleum pipeline sealing detection device; Figure 6 This is a schematic diagram of the structure of an alarm mechanism of a petroleum pipeline sealing detection device; Figure 7 This is a schematic diagram of the structure of a first abutment wheel of a petroleum pipeline sealing detection device; Figure 8 This is a schematic diagram of the triangular block position structure of a petroleum pipeline sealing detection device; Fig. 9 This is a schematic diagram of the internal structure of a second connection box of a petroleum pipeline sealing detection device; Fig.10 It is a schematic diagram of the position structure of the second recovery wheel of a petroleum pipeline sealing detection device; Fig.11 The present invention is a schematic diagram of the position structure of a bell of a petroleum pipeline sealing detection device.

[0018] In the figure: 1, high-power air pump; 2, mounting base; 3, turning handle; 4, sliding tube; 5, matching round tube; 6, first connecting box; 7, first elastic telescopic rod; 8, first ventilation pipe; 9, reset rubber tube; 10, folding rubber tube; 11, second ventilation pipe; 12, rubber ball sleeve; 13, first moving plate; 14, connecting block; 15, rubber rope; 16, rotating arm; 17. Second elastic telescopic rod; 18. Abutment plug; 19. Third elastic telescopic rod; 20. Connecting round tube; 21. Second abutment wheel; 22. Telescopic arm; 23. Position-limiting round box; 24. Fourth elastic telescopic rod; 25. First connecting ring; 26. First connecting rope; 27. First recovery wheel; 28. Second connecting rope; 29. ​​Position-limiting curved arc block; 30. First abutment wheel; 31. Fifth elastic telescopic rod; 33. Knocking ball; 34. Second connecting ring; 35. Electric heating cutting teeth; 36. Second connecting box; 37. Abutment rod; 38. Triangular block; 39. Second movable plate; 40. Elastic spring; 41. Second recovery wheel; 42. Third connecting rope; 43. Connecting arm; 44. Rotating round block; 45. Sixth elastic telescopic rod; 46. Bell; 47. Third recovery wheel; 101. Inflation detection mechanism; 201. Alarm mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, 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 creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Figure 3As shown, a petroleum pipeline sealing detection device includes a matching round tube 5, the left and right ends of the matching round tube 5 are fixedly connected with sliding tubes 4, the outer wall of each sliding tube 4 is fixedly installed with an inflation detection mechanism 101, the outer wall of the sliding tube 4 at the right end of the matching round tube 5 is fixedly connected with a first elastic telescopic rod 7, the output end of the first elastic telescopic rod 7 is fixedly connected with a first connecting box 6, the first connecting box 6 is fixedly connected with an alarm mechanism 201, a mounting seat 2 is provided on the left side of the matching round tube 5, and the inside of the mounting seat 2 is rotatably connected with a third recovery wheel 47 through a rotating shaft, the outer wall of the third recovery wheel 47 is fixedly connected with a turning handle 3 through bolts, the staff can conveniently rotate the third recovery wheel 47 through the turning handle 3, and the left side of the third recovery wheel 47 is also provided with a large The power air pump 1, the air outlet of the high-power air pump 1 is fixedly connected with a first ventilation pipe 8, the outer wall of the first ventilation pipe 8 is wound on the outer wall of the third recovery wheel 47, the end of the first ventilation pipe 8 away from the high-power air pump 1 is fixedly connected with the matching circular tube 5, and the outer wall of the first ventilation pipe 8 is penetrated into one of the sliding tubes 4. When the high-power air pump 1 inflates the inside of the matching circular tube 5 through the first ventilation pipe 8, the inflation detection mechanism 101 can drive the matching circular tube 5 to move, and the first elastic telescopic rod 7 will drive the alarm mechanism 201 to abut against the inner wall of the pipeline to be detected through the first connecting box 6. When the two sets of inflation detection mechanisms 101 move slowly, it means that the inner wall of the pipeline is broken at this time, and the alarm mechanism 201 can make a sound to alarm; Example 2: Please refer to Figure 2 - Figure 5 As shown, the inflation detection mechanism 101 includes a first movable plate 13, and the first movable plate 13 is slidably connected to the outer wall of the sliding tube 4. Specifically, a sliding opening is opened inside the first movable plate 13, and the inner wall of the sliding opening abuts against the outer wall of the sliding tube 4. The outer wall of the sliding tube 4 and the inner wall of the sliding opening are both coated with lubricating oil. When the first movable plate 13 moves on the outer wall of the sliding tube 4, the sliding tube 4 can limit the first movable plate 13 through the sliding opening, and also has a guiding function, thereby improving the stability of the first movable plate 13 when moving. The lubricating oil can also reduce the friction between the first movable plate 13 and the sliding tube 4, thereby improving the service life of the sliding tube 4. The first movable plate 13 and the matching circular tube 5 are connected by a plurality of The second elastic telescopic rod 17 is fixedly connected, and a plurality of second elastic telescopic rods 17 are distributed in a circle between the first movable plate 13 and the matching circular tube 5. A folding rubber tube 10 is also fixedly connected between the first movable plate 13 and the matching circular tube 5. The plurality of second elastic telescopic rods 17 are located inside the folding rubber tube 10. The first movable plate 13 and the sliding tube 4 are also fixedly connected by a plurality of reset rubber tubes 9, and the plurality of reset rubber tubes 9 are distributed in a circle between the sliding tube 4 and the first movable plate 13. When the first movable plate 13 moves, the reset rubber tube 9 is squeezed and contracted, and the reset rubber tube 9 can reset the first movable plate 13. The reset rubber tube 9 and the folding rubber tube 10 are both made of rubber material; The first movable plate 13 and the sliding tube 4 are also rotatably connected by a plurality of rotating arms 16, and a weight-reducing hole is provided on the inner wall of the rotating arm 16. The plurality of rotating arms 16 are circumferentially distributed between the sliding tube 4 and the first movable plate 13. The outer wall of the rotating arm 16 is rotatably connected to a connecting block 14 through a rotating shaft, and the outer wall of the connecting block 14 is curved, and a rubber rope 15 is fixedly connected to one end of the connecting block 14 away from the rotating arm 16. A rubber ball sleeve 12 is also fixedly connected between the first movable plate 13 and the sliding tube 4, and the rubber ball sleeve 12 and the rubber rope 15 are also made of rubber material, and one end of each rubber rope 15 away from the connecting block 14 is fixedly connected to the inner wall of the rubber ball sleeve 12; See also Figure 1 , Figure 3 , Figure 5 As shown, a plurality of second ventilation pipes 11 are fixedly connected between the matching circular tube 5 and the inner wall of a sliding tube 4 on the left, and the plurality of second ventilation pipes 11 are distributed in a circle between the matching circular tube 5 and the inner wall of the sliding tube 4, and the pipe openings at the left and right ends of the second ventilation pipe 11 are both located outside the matching circular tube 5 and the sliding tube 4, and the outer wall of the rubber rope 15 is fixedly connected with a connecting circular tube 20, and the inside of the connecting circular tube 20 is connected with an abutment plug 18 with a reset function, and the abutment plug 18 is fixedly connected to the inner wall of the connecting circular tube 20 through a third elastic telescopic rod 19, and a sealing rubber pad is fixedly connected to one end of the abutment plug 18 close to the connecting circular tube 20, and the sealing rubber pad can enhance the sealing between the third elastic telescopic rod 19 and the connecting circular tube 20, and the bottom of the abutment plug 18 abuts against the outer wall of the connecting circular tube 20; See also Figure 6 - Fig.10As shown, the alarm mechanism 201 includes a limit circular box 23, which is fixedly connected to the inner wall of the first connecting box 6 by a fourth elastic telescopic rod 24, and the outer wall of the first elastic telescopic rod 7 is also rotatably connected to the second recovery wheel 41 with a reset function through a rotating shaft, the second recovery wheel 41 is fixedly connected to the first elastic telescopic rod 7 by a first reset torsion spring, and the outer wall of the second recovery wheel 41 is wound with a third connecting rope 42, the inner wall of the output end of the fourth elastic telescopic rod 24 is fixedly connected to the first connecting rope 26, the first connecting rope 26 and the third connecting rope 42 are fixedly connected by the telescopic arm 22, the output end of the fourth elastic telescopic rod 24 is fixedly connected to the limit circular box 23, the outer wall of the first connecting box 6 is rotatably connected to the second abutting wheel 21 by a rotating shaft, and the outer wall of the second abutting wheel 21 is pasted with a rubber sleeve, which can enhance the friction between the inner wall of the detection tube wall, and the end of the second abutting wheel 21 close to the first connecting box 6 is fixedly connected to a plurality of fifth elastic telescopic rods 31, and the output end of the fifth elastic telescopic rod 31 is rotatably connected to the first connecting box 6 A contact wheel 30, a plurality of fifth elastic telescopic rods 31 are distributed in a circle on the outer wall of the second contact wheel 21, the inner wall of the first connection box 6 is fixedly connected with a first connection ring 25, the bottom end of the inner wall of the first connection box 6 is rotatably connected to a first recovery wheel 27 with a reset function through a rotating shaft, and the first recovery wheel 27 is fixedly connected to the inner wall of the first connection box 6 through a second reset torsion spring, the outer wall of the first recovery wheel 27 is wound with a second connection rope 28, and the free end of the second connection rope 28 is fixedly connected to the inner wall of the first connection ring 25, specifically The free end of the second connecting rope 28 is fixedly connected to the inner wall of the first connecting ring 25 by glue, so when the second connecting rope 28 needs to be replaced, the glue can be dried for replacement, and the outer wall of the second connecting rope 28 abuts against the inner wall of the first connecting ring 25, and the inner wall of the first connecting ring 25 is rotatably connected to the limiting bending block 29 with a reset function, the limiting bending block 29 is "U" shaped, the second connecting rope 28 is passed through all the limiting bending blocks 29, and the first connecting ring 25 is located outside the limiting round box 23; The inner wall of the first connecting box 6 is also fixedly connected to a second connecting ring 34, the inner wall of the second connecting ring 34 is fixedly connected to a plurality of triangular blocks 38, and the second connecting ring 34 is fixedly connected to the bottom end of the inner wall of the first connecting box 6 by a connecting arm 43, the second connecting ring 34 is located inside the second connecting ring 34, the outer wall of the first abutting wheel 30 abuts against the inner wall of the second connecting ring 34, a plurality of second connecting boxes 36 are fixedly connected inside the second connecting ring 34, and the plurality of second connecting boxes 36 are distributed in a circle in the inner wall of the second connecting ring 34, the second connecting box 36 is filled with silicone oil, the second connecting box 36 is slidably connected to an abutting rod 37 with a reset function, and the outer wall of the abutting rod 37 is fixedly connected to The second movable plate 39 is slidably connected to the inner wall of the second connecting box 36. The second movable plate 39 and the second connecting box 36 are fixedly connected by two elastic springs 40. The elastic springs 40 can drive the second movable plate 39 to quickly reset. Two groups of liquid permeable holes are provided inside the second movable plate 39. When the second movable plate 39 moves in the inner wall of the second connecting box 36, the silicone oil inside the second connecting box 36 is viscous, so when the silicone oil passes through the liquid permeable holes, it will slow down the movement of the second movable plate 39. The end of the abutment rod 37 away from the fifth elastic telescopic rod 31 is fixedly connected to the electric heating cutting tooth 35, and the outer wall of the electric heating cutting tooth 35 abuts against the inner wall of the limit circular box 23. See also Fig.11 As shown, a rotating block 44 is fixedly connected to the outer wall of the first recovery wheel 27, and a plurality of knocking balls 33 are fixedly connected to the outer wall of the rotating block 44. The knocking balls 33 are distributed in a circle on the outer wall of the rotating block 44, and the knocking balls 33 are spherical. A sixth elastic telescopic rod 45 is also fixedly connected to the bottom end of the inner wall of the first connecting box 6, and a bell 46 is fixedly connected to the upper end of the sixth elastic telescopic rod 45.

[0021] The working principle of the present invention is as follows: when in use, it is only necessary to start the high-power air pump 1, and the high-power air pump 1 will fill the inside of the matching circular tube 5 with high-pressure gas through the first ventilation pipe 8, and the high-pressure gas inside the matching circular tube 5 will quickly enter the inside of the second elastic telescopic rod 17, and at this time, the gas will enter the inside of the rubber ball sleeve 12 through the second elastic telescopic rod 17, and the rubber ball sleeve 12 will expand, and the rubber rope 15 will pull the inner wall of the rubber ball sleeve 12, and the rubber ball sleeve 12 will drive all the rotating arms 16 to bend, and at this time, the two rubber ball sleeves need to be 12 is placed in the inner wall of the pipeline to be tested. When all the rubber ball sleeves 12 are in contact with the inner wall of the pipeline, when the internal gas of all the rubber ball sleeves 12 reaches the limit, the abutment plugs 18 on the outer wall of the rubber ball sleeves 12 will be opened, and the high-pressure gas will enter between the two groups of rubber ball sleeves 12. Since the outer wall of the rubber ball sleeve 12 is in contact with the inner wall of the pipeline, the gas will be discharged through all the second ventilation pipes 11. When the high-pressure gas is discharged from the second ventilation pipes 11, there will be a thrust on the whole, and the whole device will move at this time; At the same time, it is also necessary to abut the outer wall of the second abutting wheel 21 with the inner wall of the pipe. When the whole device moves, the second abutting wheel 21 will abut and rotate against the inner wall of the pipe, and the second abutting wheel 21 will drive all the fifth elastic telescopic rods 31 to rotate, and the fifth elastic telescopic rod 31 drives the first abutting wheel 30 to abut and rotate against the inner wall of the second connecting ring 34. When the second connecting ring 34 abuts against the abutting rod 37, the electric heating cutting teeth 35 will abut against the inner wall of the limiting round box 23, so the abutting rod 37 cannot be pushed. When the two groups of rubber ball sleeves 12 and the whole are pushed by gas, the speed of movement needs to accelerate over a distance, and it also takes time. Therefore, when the speed of the whole device moving is accelerated, when it moves again, the third connecting rope 42, the telescopic arm 22 and the first connecting rope 26 will be pulled, and the telescopic arm 22 will be extended. When the telescopic arm 22 is stretched to the limit, it means that the speed of the whole device has reached the predetermined speed. At this time, the speed of the second abutting wheel 21 rotation is very fast. At this time, since the first recovery wheel 27 needs to be pulled with force, the fourth elastic telescopic rod 24 will shrink. When the fourth elastic telescopic rod 24 shrinks, it will drive the limit round box 23 to move, and the limit round box 23 will be out of contact with the electric heating cutting teeth 35. At this time, since the second abutment wheel 21 rotates very fast, when the first abutment wheel 30 moves in the inner wall of the second connecting ring 34, it will pass through the outer wall of the triangular block 38, and then fall from the triangular block 38 to the outer wall of the abutment rod 37. When the first abutment wheel 30 abuts against the outer wall of each abutment rod 37, Since the fifth elastic telescopic rod 31 rotates and moves at a fast speed, the first abutting wheel 30 will quickly break away from the abutment with the outer wall of the abutting rod 37, and the abutting rod 37 will be quickly pressed down. When the abutting rod 37 is pressed, the abutting rod 37 will drive the second movable plate 39 to move. Since the second connecting box 36 is filled with silicone oil, the silicone oil inside the second connecting box 36 is viscous, so when the silicone oil passes through the liquid permeable hole, it will slow down the movement speed of the second movable plate 39, so the electric heating cutting tooth 35 will not contact the second connecting rope 28; When leakage occurs in the pipe wall between the two sets of rubber ball sleeves 12, the high-pressure gas between the two sets of rubber ball sleeves 12 will be discharged through the leakage, slowing down the moving speed of the whole device. At this time, the second abutting wheel 21 will rotate slower, which means that the contact time between the first abutting wheel 30 and the abutting rod 37 becomes longer, and the abutting rod 37 will abut against the outer wall of the second connecting rope 28, so that the second connecting rope 28 is quickly melted. When the second connecting rope 28 is melted, the first recovery wheel 27 will reset and rotate, and the first recovery wheel 27 will drive the rotating round block 44 and all the knocking balls 33 to rotate, and the knocking balls 33 will knock on the bell 46 to sound an alarm, so that the staff can immediately shut down the high-power air pump 1 and determine the specific location of the pipeline rupture. When the first ventilation pipe 8 is recovered by rotating the third recovery wheel 47, the first ventilation pipe 8 pulls the entire device to reset. When there is no gas inside the matching circular tube 5 and the sliding tube 4, the rotating arm 16 will drive the rubber ball sleeve 12 to reset and shrink.

[0022] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A petroleum pipeline sealing detection device, comprising a matching round tube (5), characterized in that: The left and right ends of the matching circular tube (5) are fixedly connected to the sliding tube (4), and the outer wall of each sliding tube (4) is fixedly mounted with an inflation detection mechanism (101); the outer wall of the sliding tube (4) at the right end of the matching circular tube (5) is fixedly connected to a first elastic telescopic rod (7), the output end of the first elastic telescopic rod (7) is fixedly connected to a first connection box (6), and the interior of the first connection box (6) is fixedly connected with an alarm mechanism (201); and a mounting seat (2) is provided on the left side of the matching circular tube (5); A third recovery wheel (47) is connected to the inside of the mounting seat (2), a high-power air pump (1) is also arranged on the left side of the third recovery wheel (47), an air outlet of the high-power air pump (1) is fixedly connected to a first ventilation pipe (8), an outer wall of the first ventilation pipe (8) is wound on the outer wall of the third recovery wheel (47), and an end of the first ventilation pipe (8) away from the high-power air pump (1) is fixedly connected to a matching circular pipe (5).

2. The oil pipeline sealing detection device according to claim 1 is characterized in that: The inflation detection mechanism (101) comprises a first movable plate (13), the first movable plate (13) being slidably connected to the outer wall of the sliding tube (4), the first movable plate (13) being fixedly connected to the matching circular tube (5) via a plurality of second elastic telescopic rods (17), a foldable rubber tube (10) being fixedly connected between the first movable plate (13) and the matching circular tube (5), and the first movable plate (13) being rotatably connected to the sliding tube (4) via a plurality of rotating arms (16).

3. The oil pipeline sealing detection device according to claim 2 is characterized in that: The outer wall of the rotating arm (16) is rotatably connected to a connecting block (14); one end of the connecting block (14) away from the rotating arm (16) is fixedly connected to a rubber rope (15); a rubber ball sleeve (12) is also fixedly connected between the first movable plate (13) and the sliding tube (4); one end of each rubber rope (15) away from the connecting block (14) is fixedly connected to the inner wall of the rubber ball sleeve (12).

4. The oil pipeline sealing detection device according to claim 3 is characterized in that: A plurality of second ventilation tubes (11) are fixedly connected between the matching circular tube (5) and the inner wall of a sliding tube (4) on the left side; the outer wall of the rubber rope (15) is fixedly connected to a connecting circular tube (20); and the interior of the connecting circular tube (20) is connected to an abutting plug (18) having a reset function; the bottom of the abutting plug (18) abuts against the outer wall of the connecting circular tube (20).

5. The oil pipeline sealing detection device according to claim 1, characterized in that: The alarm mechanism (201) comprises a limit circular box (23), the limit circular box (23) is fixedly connected to the inner wall of the first connection box (6) via a fourth elastic telescopic rod (24), the outer wall of the first elastic telescopic rod (7) is rotatably connected to a second recovery wheel (41) having a reset function, the outer wall of the second recovery wheel (41) is wound with a third connection rope (42), the inner wall of the output end of the fourth elastic telescopic rod (24) is fixedly connected to the first connection rope (26), the first connection rope (26) and the third connection rope (42) are fixedly connected via a telescopic arm (22), the output end of the fourth elastic telescopic rod (24) is fixedly connected to the limit circular box (23), and the outer wall of the first connection box (6) is rotatably connected to the second abutment wheel (21).

6. A petroleum pipeline sealing detection device according to claim 5, characterized in that: A plurality of fifth elastic telescopic rods (31) are fixedly connected to one end of the second abutment wheel (21) close to the first connection box (6); the output end of the fifth elastic telescopic rod (31) is rotatably connected to the first abutment wheel (30); the inner wall of the first connection box (6) is fixedly connected to a first connection ring (25); the bottom end of the inner wall of the first connection box (6) is rotatably connected to a first recovery wheel (27) having a reset function via a rotating shaft; a second connection rope (28) is wound around the outer wall of the first recovery wheel (27); the free end of the second connection rope (28) is fixedly connected to the inner wall of the first connection ring (25), and the outer wall of the second connection rope (28) abuts against the inner wall of the first connection ring (25).

7. The oil pipeline sealing detection device according to claim 6, characterized in that: The inner wall of the first connecting ring (25) is rotatably connected to a limit bending arc block (29) with a reset function. The first connecting ring (25) is located outside the limit circular box (23). The inner wall of the first connecting box (6) is also fixedly connected to a second connecting ring (34). The inner wall of the second connecting ring (34) is fixedly connected to a plurality of triangular blocks (38). The outer wall of the first abutting wheel (30) abuts against the inner wall of the second connecting ring (34). The interior of the second connecting ring (34) is fixedly connected to a plurality of second connecting boxes (36). The interior of the second connecting box (36) is filled with silicone oil. The interior of the second connecting box (36) is slidably connected to an abutting rod (37) with a reset function.

8. The oil pipeline sealing detection device according to claim 7, characterized in that: The outer wall of the abutment rod (37) is fixedly connected to a second movable plate (39), and the second movable plate (39) is slidably connected to the inner wall of the second connection box (36). The second movable plate (39) and the second connection box (36) are fixedly connected via two elastic springs (40). Two groups of liquid permeable holes are provided inside the second movable plate (39). An end of the abutment rod (37) away from the fifth elastic telescopic rod (31) is fixedly connected to an electric heating cutting tooth (35), and the outer wall of the electric heating cutting tooth (35) abuts against the inner wall of the limiting circular box (23). The outer wall of the first recovery wheel (27) is fixedly connected to a rotating circular block (44), and the outer wall of the rotating circular block (44) is fixedly connected to a plurality of knocking balls (33). The bottom end of the inner wall of the first connection box (6) is also fixedly connected to a sixth elastic telescopic rod (45), and the upper end of the sixth elastic telescopic rod (45) is fixedly connected to a bell (46).

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