Natural gas pipeline detection device

Abstract

The utility model discloses a natural gas pipeline detection device, which belongs to the technical field of pipeline detection and comprises a support frame, an operation table fixedly connected to the upper end of the support frame, a display controller fixedly connected to the front end of the support frame, and a pressurization mechanism fixedly connected to the bottom wall of an inner cavity of the support frame. A natural gas pipe body is slidably connected into the pressurization mechanism, a fixing mechanism is fixedly connected to the upper end of the operation table, the natural gas pipe can be fixed through the fixing mechanism, detection is facilitated, the pressurization mechanism is matched with the detection assembly, the two ends of the natural gas pipe can be blocked, gas is inflated into the pipe, and the pressure in the pipe is larger than that of the outside; the pressure intensity of all positions outside the pipe is detected in sequence through the detection assembly, when it is found that pressure intensity data of a certain position is abnormal, the display controller can control the detection assembly to stop, the specific air leakage position can be found, the function of detecting and determining the air leakage position can be achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, and more specifically, to a natural gas pipeline detection device. Background Art

[0002] Natural gas, as a clean fuel, is of great significance to the adjustment of China's energy structure. China has a large consumption of natural gas, accounting for 5.8% in the primary energy structure, while the global share of natural gas in the primary energy structure is 24%. Therefore, the potential demand for natural gas in China in the future is huge. Pipelines are needed in the process of natural gas transportation, and the quality of natural gas pipelines needs to be detected before leaving the factory.

[0003] The Chinese patent authorization announcement number: CN107965677A provides a detection device for natural gas pipelines. This solution adjusts the height of the sliding sleeve and the cylinder body, fixes the sliding sleeve through a locking device, manually plugs the pipeline with a sealing plug, manually starts the motor, makes the cam rotate continuously, makes the lifting rod move up and down continuously through a connecting plate, makes the gas enter from the air inlet pipe and flow out from the air outlet pipe to check whether the pipeline leaks. However, there are still the following defects in the specific implementation process: this device can only detect whether there is air leakage and cannot judge the air leakage position.

[0004] Therefore, a natural gas pipeline detection device is proposed to solve the above problems. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a natural gas pipeline detection device, which can realize the function of detecting and determining the air leakage position.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A natural gas pipeline detection device includes a support frame. The upper end of the support frame is fixedly connected with an operating platform. The front end of the support frame is fixedly connected with a display controller. The bottom wall of the inner cavity of the support frame is fixedly connected with a pressurizing mechanism. A natural gas pipe body is slidably connected inside the pressurizing mechanism. The upper end of the operating platform is fixedly connected with a fixing mechanism.

[0010] Further, the pressurizing mechanism includes a double-air pump, the lower end of the double-air pump is fixedly connected to the bottom wall of the inner cavity of the support frame, a communicating pipe is fixedly connected to the two output ends of the double-air pump, air outlet pipes are fixedly connected to the two output ends of the double-air pump respectively, rubber plug heads are fixedly connected to the outer surfaces of the two air outlet pipes, and the outer surfaces of the two rubber plug heads are movably connected to the inner surface of the natural gas pipe body.

[0011] Further, the fixing mechanism includes two positioning plates, the lower ends of the two positioning plates are fixedly connected to the upper end of the operating table, a motor is fixedly connected to the left end of the positioning plate on the left side, the output end of the motor is fixedly connected to a bevel gear set through a coupling, a lead screw is fixedly connected to the inner surface of the bevel gear set, the outer surface of the lead screw is rotatably connected to the inner surfaces of the two positioning plates, a detection component is threadedly connected to the outer surface of the lead screw, a guide rod is slidably connected inside the detection component, and fixing components are fixedly connected to the upper ends of the two positioning plates.

[0012] Further, the fixing component includes a bracket, an internally threaded block is fixedly connected to the inner surface of the bracket, a screw rod is threadedly connected to the inner surface of the internally threaded block, a turning handle is fixedly connected to the upper end of the screw rod, and a clamping plate is rotatably connected to the lower end of the screw rod.

[0013] Further, the detection component includes a housing, a pressure sensor is fixedly connected to the inner surface of the housing, a moving block is fixedly connected to the outer surface of the housing, and a sliding block is fixedly connected to the outer surface of the housing.

[0014] Further, the inner surface of the moving block is threadedly connected to the outer surface of the lead screw, the inner surface of the sliding block is slidably connected to the outer surface of the guide rod, and the lower ends of the two brackets are respectively fixedly connected to the upper ends of the two positioning plates.

[0015] 3. Beneficial Effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] In this solution, through the cooperation of the fixing mechanism and the fixing component, the natural gas pipe can be fixed, which is convenient for detection. Through the cooperation of the pressurizing mechanism and the detection component, the two ends of the natural gas pipe can be blocked, and air can be inflated into the pipe to make the pressure inside the pipe greater than the outside. Then, the detection component is used to detect the pressure at each place outside the pipe in turn. When it is found that the pressure data at a certain place is abnormal, the display controller will control the detection component to stop, and the specific leakage location can be found, improving the practicability of the device. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2Schematic diagram of the pressurizing mechanism of the present utility model;

[0020] Figure 3 Schematic diagram of the fixing mechanism of the present utility model;

[0021] Figure 4 Schematic diagram of the fixing component of the present utility model;

[0022] Figure 5 Schematic diagram of the detection component of the present utility model.

[0023] Explanation of the reference numerals in the figure:

[0024] 1. Support frame; 2. Operating table; 3. Display controller; 4. Pressurizing mechanism; 41. Double-port air pump; 42. Connecting pipe; 43. Outlet pipe; 44. Rubber plug; 5. Fixing mechanism; 51. Positioning plate; 52. Motor; 53. Bevel gear set; 54. Lead screw; 55. Detection component; 551. Housing; 552. Pressure sensor; 553. Moving block; 554. Sliding block; 56. Guide rod; 57. Fixing component; 571. Bracket; 572. Internal thread block; 573. Screw; 574. Rotating handle; 575. Clamping plate; 6. Natural gas pipe body. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figures 1-5 , a natural gas pipeline detection device, including a support frame 1, an operating platform 2 is fixedly connected to the upper end of the support frame 1, a display controller 3 is fixedly connected to the front end of the support frame 1, a pressurizing mechanism 4 is fixedly connected to the bottom wall of the inner cavity of the support frame 1, a natural gas pipe body 6 is slidably connected inside the pressurizing mechanism 4, and a fixing mechanism 5 is fixedly connected to the upper end of the operating platform 2.

[0030] In this solution, the support frame 1 is used to fix the display controller 3, the operating platform 2 and the pressurizing mechanism 4. The fixing mechanism 5 is installed on the upper end of the operating platform 2, and the natural gas pipe body 6 is fixed through the action of the fixing mechanism 5, which is convenient for using the pressurizing mechanism 4 to pressurize the inside of the natural gas pipe body 6. After pressurization, the fixing mechanism 5 is used to detect the natural gas pipe body 6 to distinguish the quality of the natural gas pipe body 6.

[0031] Please refer to Figure 1 and Figure 2 , the pressurizing mechanism 4 includes a double-port air pump 41, the lower end of the double-port air pump 41 is fixedly connected to the bottom wall of the inner cavity of the support frame 1, two output ends of the double-port air pump 41 are jointly fixedly connected with a communicating pipe 42, two output ends of the double-port air pump 41 are both fixedly connected with an air outlet pipe 43, and rubber plug heads 44 are fixedly connected to the outer surfaces of the two air outlet pipes 43, and the outer surfaces of the two rubber plug heads 44 are movably connected with the inner surface of the natural gas pipe body 6.

[0032] In this solution, the rubber plug heads 44 are respectively inserted into both ends of the natural gas pipe body 6, and then the display controller 3 is used to control the double-port air pump 41 to start, so that the double-port air pump 41 allows the gas to enter the inside of the natural gas pipe body 6 through the two air outlet pipes 43, making the pressure inside the natural gas pipe body 6 greater than the outside, and realizing the pressurization process.

[0033] Please refer to Figures 3-5, the fixing mechanism 5 includes two positioning plates 51. The lower ends of the two positioning plates 51 are fixedly connected to the upper end of the operating table 2. The left end of the positioning plate 51 on the left is fixedly connected with a motor 52. The output end of the motor 52 is fixedly connected with a bevel gear set 53 through a coupling. The inner surface of the bevel gear set 53 is fixedly connected with a lead screw 54. The outer surface of the lead screw 54 is rotatably connected to the inner surfaces of the two positioning plates 51. The outer surface of the lead screw 54 is threadedly connected with a detection component 55. A guide rod 56 is slidably connected inside the detection component 55. The upper ends of the two positioning plates 51 are both fixedly connected with a fixing component 57.

[0034] The fixing component 57 includes a bracket 571. The lower ends of the two brackets 571 are respectively fixedly connected to the upper ends of the two positioning plates 51. The inner surface of the bracket 571 is fixedly connected with an internally threaded block 572. The inner surface of the internally threaded block 572 is threadedly connected with a screw rod 573. The upper end of the screw rod 573 is fixedly connected with a turning handle 574. The lower end of the screw rod 573 is rotatably connected with a clamping plate 575.

[0035] The detection component 55 includes a housing 551. The inner surface of the housing 551 is fixedly connected with a pressure sensor 552. The outer surface of the housing 551 is fixedly connected with a moving block 553. The inner surface of the moving block 553 is threadedly connected with the outer surface of the lead screw 54. The outer surface of the housing 551 is fixedly connected with a sliding block 554. The inner surface of the sliding block 554 is slidably connected with the outer surface of the guide rod 56.

[0036] In this solution, by sequentially turning the two turning handles 574 clockwise, the two screw rods 573 are rotated clockwise under the action of the two turning handles 574. Since the inner surface of the internally threaded block 572 is threadedly connected with the screw rod 573 and the position of the internally threaded block 572 is fixed, when the screw rod 573 rotates clockwise, it will move upward on the inner surface of the internally threaded block 572. At this time, place the natural gas pipe body 6 on the two positioning plates 51 and make it pass through the inside of the detection component 55. Then, sequentially turn the two turning handles 574 counterclockwise, and use the combined action of the two clamping plates 575 and the two positioning plates 51 to fix the natural gas pipe body 6. Then, use the display controller 3 to control the motor 52 to start, so that the bevel gear set 53 transmits the force of the motor 52 to the lead screw 54, enabling the lead screw 54 to rotate on the inner surfaces of the two positioning plates 51. Because the inner surface of the moving block 553 is threadedly connected with the outer surface of the lead screw 54, when the lead screw 54 rotates, it will drive the moving block 553 to move, so that the pressure sensor 552 located inside the housing 551 can move on the outer surface of the natural gas pipe body 6. And under the combined action of the sliding block 554 and the guide rod 56, the pressure sensor 552 is more stable when moving. When the pressure sensor 552 senses that the pressure of a certain section of the natural gas pipe body 6 is too high, it means that there is a leakage phenomenon in this section. At this time, the pressure sensor 552 transmits a signal to the display controller 3, and the display controller 3 controls the motor 52 to stop running. The position covered by the housing 551 is the leakage position.

[0037] It should be noted that the specific installation methods, circuit connection methods, and control methods of the display controller 3, double-air pump 41, motor 52, and pressure sensor 552 in the present utility model are all conventional designs, and the present utility model will not elaborate in detail.

[0038] Working principle: When it is necessary to conduct quality inspection on the natural gas pipeline before leaving the factory, first turn the two turning handles 574 clockwise. Under the action of the two turning handles 574, the two screw rods 573 rotate clockwise. When the screw rods 573 rotate clockwise, they will move upward on the inner surface of the internal thread block 572. At this time, place the natural gas pipe body 6 on the two positioning plates 51 and make it pass through the inside of the detection assembly 55. Then turn the two turning handles 574 counterclockwise, and use the combined action of the two clamping plates 575 and the two positioning plates 51 to fix the natural gas pipe body 6. Then, respectively insert the rubber stoppers 44 into both ends of the natural gas pipe body 6. Then, use the display controller 3 to control the start of the double-air pump 41, so that the double-air pump 41 injects gas into the inside of the natural gas pipe body 6 through the two air outlet pipes 43, making the pressure inside the natural gas pipe body 6 greater than the outside. At this time, use the display controller 3 to control the start of the motor 52, so that the bevel gear set 53 transmits the force of the motor 52 to the lead screw 54, enabling the lead screw 54 to rotate on the inner surface of the two positioning plates 51. When the lead screw 54 rotates, it will drive the moving block 553 to move, so that the pressure sensor 552 located inside the housing 551 moves on the outer surface of the natural gas pipe body 6. When the pressure sensor 552 senses that the pressure of a certain section of the natural gas pipe body 6 is too high, it means that there is a leakage phenomenon in this section. At this time, the pressure sensor 552 transmits a signal to the display controller 3, and the display controller 3 controls the motor 52 to stop running. The position covered by the housing 551 is the leakage position.

[0039] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A natural gas pipeline detection device, comprising a support frame (1), characterized in that: The upper end of the support frame (1) is fixedly connected to an operating table (2), the front end of the support frame (1) is fixedly connected to a display controller (3), the bottom wall of the inner cavity of the support frame (1) is fixedly connected to a pressurizing mechanism (4), the inside of the pressurizing mechanism (4) is slidably connected to a natural gas pipe body (6), and the upper end of the operating table (2) is fixedly connected to a fixing mechanism (5); The pressurizing mechanism (4) comprises a double-port air pump (41), the lower end of the double-port air pump (41) is fixedly connected to the bottom wall of the inner cavity of the support frame (1), the two output ends of the double-port air pump (41) are fixedly connected to a connecting pipe (42), the two output ends of the double-port air pump (41) are fixedly connected to an air outlet pipe (43), the outer surfaces of the two air outlet pipes (43) are fixedly connected to rubber plugs (44), and the outer surfaces of the two rubber plugs (44) are movably connected to the inner surface of the natural gas pipe body (6); The fixing mechanism (5) comprises two positioning plates (51), the lower ends of the two positioning plates (51) are fixedly connected to the upper end of the operating table (2), the left end of the positioning plate (51) located on the left side is fixedly connected to a motor (52), the output end of the motor (52) is fixedly connected to a bevel gear set (53) through a coupling, the inner surface of the bevel gear set (53) is fixedly connected to a screw rod (54), the outer surface of the screw rod (54) is rotatably connected to the inner surfaces of the two positioning plates (51), the outer surface of the screw rod (54) is threadedly connected to a detection component (55), the detection component (55) is slidably connected to a guide rod (56), and the upper ends of the two positioning plates (51) are fixedly connected to a fixing component (57).

2. A natural gas pipeline detection device according to claim 1, characterized in that: The fixing assembly (57) comprises a bracket (571), the inner surface of the bracket (571) is fixedly connected to an internal thread block (572), the inner surface of the internal thread block (572) is threadedly connected to a screw rod (573), the upper end of the screw rod (573) is fixedly connected to a rotating handle (574), and the lower end of the screw rod (573) is rotatably connected to a clamping plate (575).

3. A natural gas pipeline detection device according to claim 2, characterized in that: The detection component (55) comprises a shell (551), the inner surface of the shell (551) is fixedly connected to a pressure sensor (552), the outer surface of the shell (551) is fixedly connected to a moving block (553), and the outer surface of the shell (551) is fixedly connected to a sliding block (554).

4. A natural gas pipeline detection device according to claim 3, characterized in that: The inner surface of the moving block (553) is threadedly connected to the outer surface of the screw rod (54), the inner surface of the sliding block (554) is slidably connected to the outer surface of the guide rod (56), and the lower ends of the two brackets (571) are fixedly connected to the upper ends of the two positioning plates (51) respectively.

Images