Heat supply pipeline leakage positioning device based on pressure waves

Abstract

The utility model relates to the technical field of pipeline leakage positioning, in particular to a heat supply pipeline leakage positioning device based on pressure waves, which comprises a heat supply pipeline and a frame, the outer wall of the heat supply pipeline is sleeved with the frame, a moving mechanism is arranged in the frame, the outer wall of the frame is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the frame. A positioning mechanism is arranged at the end of the connecting rod, a data processing unit is fixedly connected to the upper surface of the frame, the data processing unit is fixedly connected with one end of an electric wire, and a pressure sensor is fixedly connected to the other end of the electric wire. The handle drives the worm to rotate, the worm drives the two worm wheels to rotate, the worm wheels drive the rotating rods to rotate, the rotating rods drive the rollers to rotate, the two rollers roll on the outer wall of the heat supply pipeline, the positions of the two rollers in the left-right direction change when the two rollers roll on the outer wall of the heat supply pipeline, and then the frame is driven to move. And the positions of the air guide pipe and the pressure sensor are changed, and multiple positions of the outer wall of the heat supply pipeline are detected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline leakage positioning, in particular to a heating pipeline leakage positioning device based on pressure waves. Background Art

[0002] When a sudden leak occurs somewhere on the heating pipeline, a transient pressure drop will occur at the leak point. This negative pressure fluctuation propagates from the leak point to both ends at a certain speed; the pressure sensor captures the waveform of the specific transient pressure, determines the leak point, and obtains the location of the leak point through the receiving time difference.

[0003] For example, a negative pressure wave positioning detection device for gas pipeline leakage with patent number CN219140528U includes a gas pipeline, a first data processing unit and a second data processing unit located outside the gas pipeline and having the same structure, and a first air duct and a second air duct arranged outside the gas pipeline, wherein the internal threaded sleeve at the top end of the first air duct is connected with a first manual valve. The above document still has deficiencies. When in use, the connection between the first manual valve and the external threaded sleeve can be sealed by a sealing sleeve, and at the same time, by applying sealing grease in the annular groove, it is possible to prevent external air from penetrating into the threaded connection, and prevent rust from occurring at the threaded connection, thereby facilitating the installation and disassembly of the pressure sensor. However, when the device in the above document detects and locates the leakage position of the heating pipeline, it can only detect a single position of the heating pipeline, which is not convenient for detecting multiple positions of the heating pipeline. At the same time, the heating pipeline is usually arranged in a round tube structure. When detecting the leakage position of the heating pipeline, it is necessary to continuously rotate and move forward on the outer wall of the heating pipeline to find the leakage position, which is not convenient for quickly locating the leakage position of the heating pipeline. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to detect multiple positions of a heating pipeline, and proposes a heating pipeline leakage locating device based on pressure waves.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pressure wave-based heating pipe leakage positioning device is designed, comprising a frame, the outer wall of the heating pipe is sleeved with the frame, a moving mechanism is arranged inside the frame, a connecting rod is fixedly connected to the outer wall of the frame, a positioning mechanism is arranged at the end of the connecting rod, a data processing unit is fixedly connected to the upper surface of the frame, the data processing unit is fixedly connected to one end of an electric wire, and a pressure sensor is fixedly connected to the other end of the electric wire.

[0007] Preferably, the moving mechanism includes a worm, the outer walls at both ends of the worm are rotatably connected to the frame through bearings, a handle is fixedly connected to the end of the worm, the worm is meshingly connected to two worm wheels, the worm wheel is fixedly connected to one end of a rotating rod, the outer walls at both ends of the rotating rod are rotatably connected to the frame through bearings, the outer wall of the rotating rod is fixedly connected to a roller, and the outer wall of the roller is in contact with the heating pipe.

[0008] Preferably, the positioning mechanism includes a bracket, the bracket is fixedly connected to the end of the connecting rod, a rubber pad is fixedly connected to the inside of the bracket, the rubber pad is slidably connected to the outer wall of the heating pipe, a support rod is fixedly connected to the outer wall of the support rod, a circular ring is fixedly connected to the end of the support rod, a scraper is fixedly connected to the inner wall of the circular ring, and the scraper is in contact with the outer wall of the heating pipe.

[0009] Preferably, a connecting seat is fixedly connected below the pressure sensor, and an air guide tube is fixedly connected below the connecting seat.

[0010] Preferably, the outer wall of the lower end of the air guide tube is fixedly connected to the bracket.

[0011] Preferably, a manual valve is provided on the outer wall of the air duct.

[0012] The utility model proposes a pressure wave-based heating pipe leakage positioning device, which has the beneficial effects of: through the cooperation between the worm, the handle, the worm wheel, the rotating rod and the roller, the handle drives the worm to rotate, the worm drives the two worm wheels to rotate, the worm wheel drives the rotating rod to rotate, the rotating rod drives the roller to rotate, the two rollers roll on the outer wall of the heating pipe, and the positions of the two rollers in the left and right directions change when rolling on the outer wall of the heating pipe, thereby driving the position of the frame to move, thereby changing the positions of the air guide pipe and the pressure sensor, and detecting multiple positions of the outer wall of the heating pipe. When in use, it is convenient to detect multiple positions of the heating pipe.

[0013] Through the cooperation among the bracket, rubber pad, support rod, ring and scraper, the bracket drives the support rod to move, the support rod drives the ring to move, the ring drives the scraper to move, the scraper cleans the impurities attached to the outer wall of the heating pipe to prevent the impurities from damaging the rubber pad, the bracket moves on the outer wall of the heating pipe, the rubber pad increases the sealing between the heating pipe and the bracket, when the leakage position of the heating pipe is inside the bracket, the leaked gas enters the interior of the pressure sensor through the air guide pipe and the connecting seat, the bracket is moved away from the leakage of the heating pipe, the above-mentioned detected position is observed for a week, the leakage position of the heating pipe is quickly located, and when in use, it is convenient to quickly locate the leakage position of the heating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the connection structure of the connection seat, the pressure sensor and the wire;

[0017] Figure 4 This is a schematic diagram of the structure of the connection between the bracket, rubber pad and support rod in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the connection between the circular ring and the scraper blade in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the connection between the worm, the handle and the worm wheel in the utility model.

[0020] In the figure: 1, heating pipe, 2, frame, 3, moving mechanism, 301, worm, 302, handle, 303, worm wheel, 304, rotating rod, 305, roller, 4, positioning mechanism, 401, bracket, 402, rubber pad, 403, support rod, 404, ring, 405, scraper, 5, connecting rod, 6, air guide tube, 7, manual valve, 8, connecting seat, 9, pressure sensor, 10, wires, 11, data processing unit. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6 : In this embodiment, a heat supply pipe leakage positioning device based on pressure wave comprises a frame 2, the outer wall of the heat supply pipe 1 is sleeved with the frame 2, a moving mechanism 3 is arranged inside the frame 2, the moving mechanism 3 facilitates the frame 2 to move on the outer wall of the heat supply pipe 1, a connecting rod 5 is fixedly connected to the outer wall of the frame 2, the frame 2 drives the connecting rod 5 to move, a positioning mechanism 4 is arranged at the end of the connecting rod 5, the positioning mechanism 4 quickly locates the leakage position of the heat supply pipe 1, a data processing unit 11 is fixedly connected to the upper surface of the frame 2, and the internal structure and working principle of the data processing unit 11 and the pressure sensor 9 are the same as those in a gas pipeline leakage negative pressure wave positioning detection device with patent number CN219140528U;

[0023] The data processing unit 11 is fixedly connected to one end of the electric wire 10, and the other end of the electric wire 10 is fixedly connected to a pressure sensor 9, and the pressure sensor 9 provides data to the data processing unit 11 through the electric wire 10. A connecting seat 8 is fixedly connected to the bottom of the pressure sensor 9, and the connecting seat 8 is connected to the data processing unit 11. An air duct 6 is fixedly connected to the bottom of the connecting seat 8, and the connecting seat 8 is connected to the air duct 6. The outer wall of the lower end of the air duct 6 is fixedly connected to the bracket 401, and the air duct 6 is connected to the inside of the bracket 401. A manual valve 7 is provided on the outer wall of the air duct 6, and the manual valve 7 controls the opening and closing of the air duct 6.

[0024] The moving mechanism 3 includes a worm 301, a handle 302, a worm wheel 303, a rotating rod 304 and a roller 305. The outer walls at both ends of the worm 301 are rotatably connected to the frame 2 through bearings. The end of the worm 301 is fixedly connected to the handle 302, and the handle 302 drives the worm 301 to rotate. The threads on both sides of the worm 301 are in opposite directions. The worm 301 is meshed and connected with two worm wheels 303. The worm 301 drives the two worm wheels 303 to rotate. The worm wheel 303 is fixedly connected to one end of the rotating rod 304. The worm wheel 303 drives the rotating rod 304 to rotate. The outer walls at both ends of the rotating rod 304 are rotatably connected to the frame 2 through bearings. The outer wall of the rotating rod 304 is fixedly connected to the roller 305. The rotating rod 304 drives the roller 305 to rotate. The outer wall of the roller 305 fits the heating pipe 1. The roller 305 rolls on the outer wall of the heating pipe 1 to move the frame 2.

[0025] The handle 302 drives the worm 301 to rotate, the worm 301 drives the two worm wheels 303 to rotate, the worm wheel 303 drives the rotating rod 304 to rotate, the rotating rod 304 drives the roller 305 to rotate, and the two rollers 305 roll on the outer wall of the heating pipe 1. When the two rollers 305 roll on the outer wall of the heating pipe 1, the positions of the two rollers 305 in the left and right directions change, thereby driving the position of the frame 2 to move, and then the positions of the air guide pipe 6 and the pressure sensor 9 change, and multiple positions of the outer wall of the heating pipe 1 are detected. When in use, it is convenient to detect multiple positions of the heating pipe 1.

[0026] The positioning mechanism 4 includes a bracket 401, a rubber pad 402, a support rod 403, a ring 404 and a scraper 405. The bracket 401 is fixedly connected to the end of the connecting rod 5, and the connecting rod 5 drives the bracket 401 to move. The rubber pad 402 is fixedly connected to the inside of the bracket 401. The rubber pad 402 increases the sealing between the bracket 401 and the heating pipe 1. The rubber pad 402 is slidably connected to the outer wall of the heating pipe 1. The outer wall of the bracket 401 is fixedly connected to the support rod 403. The bracket 401 drives the support rod 403 to move. The end of the support rod 403 is fixedly connected to the ring 404. The support rod 403 drives the ring 404 to move. The inner wall of the ring 404 is fixedly connected to the scraper 405. The ring 404 drives the scraper 405 to move. The scraper 405 fits the outer wall of the heating pipe 1. The scraper 405 cleans the impurities on the outer wall of the heating pipe 1 to avoid damage to the rubber pad 402.

[0027] The bracket 401 drives the support rod 403 to move, the support rod 403 drives the ring 404 to move, the ring 404 drives the scraper 405 to move, the scraper 405 cleans the impurities attached to the outer wall of the heating pipe 1 to prevent the impurities from damaging the rubber pad 402, the bracket 401 moves on the outer wall of the heating pipe 1, the rubber pad 402 increases the sealing between the heating pipe 1 and the bracket 401, when the leakage position of the heating pipe 1 is inside the bracket 401, the leaked gas enters the inside of the pressure sensor 9 through the air guide pipe 6 and the connecting seat 8, the bracket 401 is moved away from the leakage of the heating pipe 1, the above-mentioned detected position is observed for a week, and the leakage position of the heating pipe 1 is quickly located. When in use, it is convenient to quickly locate the leakage position of the heating pipe 1.

[0028] Working principle:

[0029] When locating the leakage position of the heating pipeline 1 using the heating pipeline leakage locating device based on pressure waves;

[0030] Frame movement phase:

[0031] The frame 2 is sleeved on the outside of the heating pipe 1, and the handle 302 is turned, and the handle 302 drives the worm 301 to rotate, and the worm 301 drives the two worm wheels 303 to rotate, and the worm wheels 303 drive the rotating rod 304 to rotate, and the rotating rod 304 drives the roller 305 to rotate, and the two rollers 305 roll on the outer wall of the heating pipe 1. When the two rollers 305 roll on the outer wall of the heating pipe 1, the positions of the left and right directions change, thereby driving the position of the frame 2 to move, and then the positions of the air guide pipe 6 and the pressure sensor 9 change, and multiple positions of the outer wall of the heating pipe 1 are detected. When in use, it is convenient to detect multiple positions of the heating pipe 1;

[0032] Heating pipeline leakage location positioning stage:

[0033] When the frame 2 moves, the connecting rod 5 moves, the connecting rod 5 drives the bracket 401 to move, the bracket 401 drives the support rod 403 to move, the support rod 403 drives the ring 404 to move, the ring 404 drives the scraper 405 to move, the scraper 405 cleans the impurities attached to the outer wall of the heating pipe 1 to prevent the impurities from damaging the rubber pad 402, the bracket 401 moves on the outer wall of the heating pipe 1, the rubber pad 402 increases the sealing between the heating pipe 1 and the bracket 401, when the leakage position of the heating pipe 1 is inside the bracket 401, the leaked gas passes through the guide The air pipe 6 and the connecting seat 8 enter the interior of the pressure sensor 9, and the pressure sensor 9 transmits data to the data processing unit through the wire 10. When detecting and locating the leakage position of the outer wall of the heating pipe 1, there is no need to rotate the frame 2. When the frame 2 moves, it can detect whether there is a leak around a single position of the heating pipe 1. The bracket 401 is moved away from the leakage point of the heating pipe 1, and the above-mentioned detected position is observed around to quickly locate the leakage position of the heating pipe 1. When in use, it is convenient to quickly locate the leakage position of the heating pipe 1.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A heating pipeline leakage locating device based on pressure waves, comprising a frame (2), wherein the outer wall of the heating pipeline (1) is provided with the frame (2), and characterized in that: A moving mechanism (3) is arranged inside the frame (2); a connecting rod (5) is fixedly connected to the outer wall of the frame (2); a positioning mechanism (4) is arranged at the end of the connecting rod (5); a data processing unit (11) is fixedly connected to the upper surface of the frame (2); the data processing unit (11) is fixedly connected to one end of an electric wire (10); the other end of the electric wire (10) is fixedly connected to a pressure sensor (9); the positioning mechanism (4) comprises a bracket (401); the bracket ( The bracket (401) is fixedly connected to the end of the connecting rod (5), a rubber pad (402) is fixedly connected to the inside of the bracket (401), and the rubber pad (402) is slidably connected to the outer wall of the heating pipe (1), a support rod (403) is fixedly connected to the outer wall of the bracket (401), a circular ring (404) is fixedly connected to the end of the support rod (403), a scraper (405) is fixedly connected to the inner wall of the circular ring (404), and the scraper (405) is in contact with the outer wall of the heating pipe (1).

2. A heating pipeline leakage locating device based on pressure wave according to claim 1, characterized in that: The moving mechanism (3) comprises a worm (301), the outer walls at both ends of the worm (301) are rotatably connected to the frame (2) via bearings, a handle (302) is fixedly connected to the end of the worm (301), the worm (301) is meshedly connected to two worm wheels (303), the worm wheel (303) is fixedly connected to one end of a rotating rod (304), the outer walls at both ends of the rotating rod (304) are rotatably connected to the frame (2) via bearings, the outer wall of the rotating rod (304) is fixedly connected to a roller (305), and the outer wall of the roller (305) is in contact with the heating pipe (1).

3. The device for locating leakage of a heating pipeline based on pressure waves according to claim 2, characterized in that: A connecting seat (8) is fixedly connected below the pressure sensor (9), and an air guide tube (6) is fixedly connected below the connecting seat (8).

4. The device for locating leakage of a heating pipeline based on pressure waves according to claim 3, characterized in that: The outer wall of the lower end of the air guide tube (6) is fixedly connected to the bracket (401).

5. The device for locating leakage of a heating pipeline based on pressure waves according to claim 4, characterized in that: The outer wall of the air guide tube (6) is provided with a manual valve (7).

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