Device for detecting natural gas in natural gas pipeline

Abstract

The invention discloses a device for detecting natural gas in a natural gas pipeline, and relates to the technical field of natural gas pipeline detection.The device comprises a natural gas pipeline and a detection sensor, the outer side of the detection sensor is movably connected with a plurality of supporting frames, the outer sides of the supporting frames are movably connected with transmission tracks, and the detection sensor is provided with a processing assembly; the processing assembly comprises a second rotating rod rotationally connected with the outer side of the detection sensor, a plurality of scraping pieces movably connected with the outer side of the second rotating rod, rotating wheels rotationally connected with the outer sides of the scraping pieces and crushing pieces installed on the side faces of the rotating wheels. According to the device, impurities and the like in a natural gas pipeline are treated, and the situation that the impurities are attached to the surface of a probe of a detection sensor, accurate measurement of the detection sensor on parameters such as natural gas components, pressure and flow is affected, and consequently the detection result is inaccurate is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas pipeline detection, and in particular to a natural gas detection device in a natural gas pipeline. Background Art

[0002] A natural gas pipeline is a system of pipes that transports natural gas (including associated gas from oilfields) from production sites or processing plants to urban distribution centers or industrial users. Primarily composed of steel pipes, pipe fittings, valves, and instruments, it is a specialized pipeline specifically designed for transporting natural gas. Structurally, natural gas pipelines are categorized into different types. These pipelines are classified by their intended use: long-distance pipelines, city gas pipelines, and industrial gas pipelines. Long-distance pipelines are generally used to transport natural gas from gas fields or import ports to city gate stations; city gas pipelines distribute natural gas from gate stations to residential communities and commercial users; and industrial gas pipelines transport natural gas to various gas-consuming equipment within factories. Monitoring the flow and pressure within natural gas pipelines provides information on the delivery status of natural gas. Abnormal flow or pressure may indicate a blockage or leak in the pipeline, impacting the normal supply of natural gas. Timely adjustments and interventions can ensure a stable supply of natural gas to meet user needs.

[0003] Natural gas pipelines are mostly constructed of steel pipes, primarily composed of iron. In humid environments, iron reacts chemically with water and oxygen to form rust (primarily composed of iron oxide). During pipeline construction, impurities such as mud and sand may be introduced during pipeline laying. During mobile testing, these impurities within the pipeline may adhere to the sensor probe surface, affecting the sensor's accurate measurement of natural gas composition, pressure, flow, and other parameters, leading to inaccurate test results. Therefore, a natural gas detection device for natural gas pipelines has been proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that impurities in the natural gas pipeline may adhere to the probe surface of the detection sensor, affecting the sensor's accurate measurement of natural gas composition, pressure, flow and other parameters, resulting in inaccurate detection results. A natural gas detection device in a natural gas pipeline is proposed to solve the problem in the prior art that impurities in the natural gas pipeline may adhere to the probe surface of the detection sensor, affecting the sensor's accurate measurement of natural gas parameters such as natural gas composition, pressure, flow and so on, resulting in inaccurate detection results.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A natural gas detection device in a natural gas pipeline comprises a natural gas pipeline and a detection sensor, characterized in that a plurality of support frames are movably connected to the outer side of the detection sensor, a transmission track is movably connected to the outer side of the support frame, a processing assembly is provided on the detection sensor, the processing assembly comprises a second rotating rod rotatably connected to the outer side of the detection sensor, a plurality of scrapers movably connected to the outer side of the second rotating rod, a rotating wheel rotatably connected to the outer side of the scrapers, and a crushing piece installed on the side of the rotating wheel; when the plurality of transmission tracks drive the detection sensor to move for detection, the second rotating rod rotates, and simultaneously drives the plurality of scrapers and the rotating wheel to rotate; when the rotating wheel rotates, the crushing piece drives the crushing piece to crush impurities on the inner wall of the natural gas pipeline, and the scrapers rotate to scrape off impurities on the inner wall of the natural gas pipeline;

[0007] The detection sensor and the scraper are jointly provided with a collection component, which includes a suction plate installed on the outside of the scraper, a transmission box installed on the outside of the detection sensor, an air pump and a storage box respectively installed on the bottom of the transmission box, and a first crushing roller and a second crushing roller respectively connected to the inside of the storage box. When the scraper and the crushing plate process impurities on the inner wall of the natural gas pipeline, the air pump is started, and the processed impurities are sucked by the suction plate and transmitted to the inside of the storage box through the transmission box. The impurities inside the storage box can be crushed into small particles of impurities by the rotation of the first crushing roller and the second crushing roller, so as to prevent the impurities from adhering to the probe surface of the detection sensor, affecting the detection sensor's accurate measurement of natural gas composition, pressure, flow and other parameters, resulting in inaccurate detection results.

[0008] The above technical solution further includes:

[0009] A plurality of first telescopic rods are installed on the outside of the detection sensor, and one end of the first telescopic rod away from the detection sensor is fixedly connected to the support frame. A transmission device is installed on the side of the support frame, and the transmission belt is movably connected to the output end of the transmission device. The transmission device drives the transmission belt to rotate, and the rotation of the plurality of transmission belts can drive the detection sensor to move in the natural gas pipeline for detection.

[0010] A plurality of second telescopic rods are installed on the outer side of the second rotating rod. One end of the second telescopic rod away from the second rotating rod is fixedly connected to the scraper. When the second rotating rod rotates, the plurality of scrapers are driven to rotate through the plurality of second telescopic rods.

[0011] An annular groove is provided on the side of the second rotating rod, and a plurality of exhaust pipes are installed on the outer side of the second rotating rod. The end of the exhaust pipe away from the second rotating rod is fixedly connected to the suction plate, and the annular groove and the suction plate are both connected to the exhaust pipe.

[0012] A second servo motor is installed on the side of the detection sensor, and a first rotating rod is installed on the end of the output shaft of the second servo motor. The end of the first rotating rod away from the second servo motor is fixedly connected to the inner wall of the annular groove. After the second servo motor is started, the second rotating rod is driven to rotate through the first rotating rod.

[0013] A round rod is installed on the outside of the second telescopic rod. The end of the round rod away from the second telescopic rod is rotatably connected to a rotating wheel. The rotating wheel fits against the inner wall of the natural gas pipeline. When the crushing piece rotates, it can crush impurities inside the natural gas pipeline.

[0014] A third servo motor is installed on the outside of the storage box. The output end of the third servo motor extends to the inside of the storage box and is fixedly connected to the first crushing roller. The first crushing roller and the second crushing roller are respectively installed with a first gear and a second gear at one end outside the storage box. The first gear and the second gear are meshed with each other, and the impurities are crushed by the reverse rotation of the first crushing roller and the second crushing roller.

[0015] Guide blocks are symmetrically installed on the inner side of the storage box, and the guide blocks guide the impurities to between the first crushing roller and the second crushing roller.

[0016] The opening of the annular groove is located on the inner side of the transmission box, and the transmission box and the storage box are connected.

[0017] The scraper blade is in an arc shape and fits in with the inner wall of the natural gas pipeline.

[0018] The present invention has the following beneficial effects:

[0019] In the present invention, by setting up processing components and collection components, impurities in the natural gas pipeline can be processed to prevent impurities from adhering to the probe surface of the detection sensor, affecting the detection sensor's accurate measurement of natural gas parameters such as composition, pressure, and flow, resulting in inaccurate detection results. Reducing impurity accumulation can ensure that the detection sensor is in direct contact with the natural gas and obtain accurate detection signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a natural gas detection device in a natural gas pipeline proposed by the present invention;

[0021] Figure 2 It is a schematic diagram of the overall side sectional structure of the present invention;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure at center A;

[0023] Figure 4 for Figure 1A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point C in the middle;

[0025] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point D in the middle.

[0026] In the figure: 1. Natural gas pipeline; 2. Detection sensor; 3. First telescopic rod; 4. Support frame; 5. Transmission equipment; 6. Transmission crawler; 7. Transmission box; 8. Second servo motor; 9. First rotating rod; 10. Second rotating rod; 11. Annular groove; 12. Second telescopic rod; 13. Scraper; 14. Suction plate; 15. Exhaust pipe; 16. Air pump; 17. Storage box; 18. Round rod; 19. Rotating wheel; 20. Crushing piece; 21. Third servo motor; 22. First crushing roller; 23. Second crushing roller; 24. Guide block; 25. First gear; 26. Second gear. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1 - Figure 6 As shown, a natural gas detection device in a natural gas pipeline proposed by the present invention includes a natural gas pipeline 1 and a detection sensor 2. A plurality of support frames 4 are movably connected to the outer side of the detection sensor 2. A transmission track 6 is movably connected to the outer side of the support frame 4. A processing component is provided on the detection sensor 2. The processing component includes a second rotating rod 10 rotatably connected to the outer side of the detection sensor 2, a plurality of scrapers 13 movably connected to the outer side of the second rotating rod 10, a rotating wheel 19 rotatably connected to the outer side of the scraper 13, and a crushing piece 20 installed on the side of the rotating wheel 19. When the plurality of transmission tracks 6 drive the detection sensor 2 to move for detection, the second rotating rod 10 rotates, and at the same time drives the plurality of scrapers 13 and the rotating wheel 19 to rotate. When the rotating wheel 19 rotates, it drives the crushing piece 20 to crush impurities on the inner wall of the natural gas pipeline 1. The scraper 13 rotates to scrape off the impurities on the inner wall of the natural gas pipeline 1.

[0030] The detection sensor 2 and the scraper 13 are jointly provided with a collection component, which includes a suction plate 14 installed on the outside of the scraper 13, a transmission box 7 installed on the outside of the detection sensor 2, an air pump 16 and a storage box 17 respectively installed on the bottom of the transmission box 7, and a first crushing roller 22 and a second crushing roller 23 respectively connected to the inside of the storage box 17. When the scraper 13 and the crushing plate 20 process impurities on the inner wall of the natural gas pipeline 1, the air pump 16 is started, and the processed impurities are sucked through the suction plate 14 and transmitted to the inside of the storage box 17 through the transmission box 7. The impurities inside the storage box 17 can be crushed into small particles of impurities by the rotation of the first crushing roller 22 and the second crushing roller 23, so as to prevent the impurities from adhering to the probe surface of the detection sensor 2, affecting the accurate measurement of the natural gas composition, pressure, flow and other parameters by the detection sensor 2, resulting in inaccurate detection results.

[0031] A plurality of first telescopic rods 3 are installed on the outside of the detection sensor 2. The end of the first telescopic rod 3 away from the detection sensor 2 is fixedly connected to the support frame 4. A transmission device 5 is installed on the side of the support frame 4. The transmission belt 6 is movably connected to the output end of the transmission device 5. The transmission device 5 drives the transmission belt 6 to rotate. The rotation of the plurality of transmission belts 6 can drive the detection sensor 2 to move in the natural gas pipeline 1 for detection.

[0032] A plurality of second telescopic rods 12 are installed on the outer side of the second rotating rod 10. One end of the second telescopic rod 12 away from the second rotating rod 10 is fixedly connected to the scraper 13. When the second rotating rod 10 rotates, the plurality of scrapers 13 are driven to rotate by the plurality of second telescopic rods 12.

[0033] An annular groove 11 is provided on the side of the second rotating rod 10, and multiple exhaust pipes 15 are installed on the outside of the second rotating rod 10. The end of the exhaust pipe 15 away from the second rotating rod 10 is fixedly connected to the suction plate 14, and the annular groove 11 and the suction plate 14 are both connected to the exhaust pipe 15.

[0034] A second servo motor 8 is installed on the side of the detection sensor 2, and a first rotating rod 9 is installed on the end of the output shaft of the second servo motor 8. The end of the first rotating rod 9 away from the second servo motor 8 is fixedly connected to the inner wall of the annular groove 11. After the second servo motor 8 is started, the second rotating rod 10 is driven to rotate through the first rotating rod 9.

[0035] A round rod 18 is installed on the outside of the second telescopic rod 12. The end of the round rod 18 away from the second telescopic rod 12 is rotatably connected to a rotating wheel 19. The rotating wheel 19 fits against the inner wall of the natural gas pipeline 1. When the crushing piece 20 rotates, it can crush the impurities inside the natural gas pipeline 1.

[0036] The scraper blade 13 is arc-shaped and fits closely to the inner wall of the natural gas pipeline 1 .

[0037] In this embodiment, when natural gas testing is required within the natural gas pipeline 1, the transmission device 5 can be activated to rotate the transmission track 6. The rotation of the multiple transmission tracks 6 can drive the detection sensor 2 to move within the natural gas pipeline 1 for testing. While the detection sensor 2 is moving for testing, the second servo motor 8 can be activated, which drives the first rotating rod 9 to rotate. The rotation of the first rotating rod 9 drives the second rotating rod 10 to rotate. The rotation of the second rotating rod 10 drives the multiple scrapers 13 to rotate via the multiple second telescopic rods 12. Because the rotating wheel 19 is in contact with the inner wall of the natural gas pipeline 1, the rotation of the scrapers 13 drives the rotating wheel 19 to rotate along the inner wall of the natural gas pipeline 1, thereby driving the crushing pieces 20 to rotate. The rotation of the crushing pieces 20 crushes impurities within the natural gas pipeline 1, which are then scraped off by the scrapers 13.

[0038] Example 2

[0039] like Figure 1 - Figure 6 As shown, based on the first embodiment, a third servo motor 21 is installed on the outside of the storage box 17. The output end of the third servo motor 21 extends to the inside of the storage box 17 and is fixedly connected to the first crushing roller 22. The first crushing roller 22 and the second crushing roller 23 are respectively installed with a first gear 25 and a second gear 26 at one end outside the storage box 17. The first gear 25 and the second gear 26 are meshed with each other, and the impurities are crushed by the reverse rotation of the first crushing roller 22 and the second crushing roller 23.

[0040] Guide blocks 24 are symmetrically installed on the inner side of the storage box 17 , and the guide blocks 24 guide the impurities to between the first crushing roller 22 and the second crushing roller 23 .

[0041] The opening of the annular groove 11 is located inside the transmission box 7 , and the transmission box 7 and the storage box 17 are connected.

[0042] In this embodiment, when the scraper 13 and the crushing piece 20 rotate to process the impurities on the inner wall of the natural gas pipeline 1, the air pump 16 can be started at this time, and the air pump 16 can generate a suction force. At this time, the suction plate 14 can generate a suction force through the transmission box 7, the annular groove 11 and the suction pipe 15. The suction plate 14 can suck the impurities processed by the scraper 13 and the crushing piece 20, and then transmit them to the inside of the storage box 17 through the suction pipe 15, the annular groove 11 and the transmission box 7. At the same time, the third servo motor 21 is started, and the third servo motor 21 can drive the first crushing roller 22 to rotate. Since the first gear 25 is engaged with the second gear 26, when the first crushing roller 22 rotates, the second crushing roller 23 can be driven to rotate in the opposite direction through the first gear 25 and the second gear 26. When the impurities enter the inside of the storage box 17, the impurities can be guided to between the first crushing roller 22 and the second crushing roller 23 by the guide block 24, and then crushed by the reverse rotation of the first crushing roller 22 and the second crushing roller 23, and finally fall into the storage box 17 for storage.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas detection device in a natural gas pipeline, comprising a natural gas pipeline (1) and a detection sensor (2), characterized in that: The outer side of the detection sensor (2) is movably connected to a plurality of support frames (4), and the outer side of the support frame (4) is movably connected to a transmission crawler (6). A processing component is provided on the detection sensor (2), and the processing component includes a second rotating rod (10) rotatably connected to the outer side of the detection sensor (2), a plurality of scrapers (13) movably connected to the outer side of the second rotating rod (10), a rotating wheel (19) rotatably connected to the outer side of the scrapers (13), and a crushing piece (20) installed on the side of the rotating wheel (19). When the plurality of transmission crawlers (6) drive the detection sensor (2) to move for detection, the second rotating rod (10) rotates, and at the same time drives the plurality of scrapers (13) and the rotating wheel (19) to rotate. When the rotating wheel (19) rotates, it drives the crushing piece (20) to crush impurities on the inner wall of the natural gas pipeline (1), and the scraper (13) rotates to scrape off impurities on the inner wall of the natural gas pipeline (1); The detection sensor (2) and the scraper (13) are jointly provided with a collection assembly, the collection assembly comprising a suction plate (14) mounted on the outside of the scraper (13), a transmission box (7) mounted on the outside of the detection sensor (2), an air pump (16) and a storage box (17) mounted on the bottom of the transmission box (7), and a first crushing roller (22) and a second crushing roller (23) respectively connected to the inside of the storage box (17) for rotation. When the scraper (13) and the crushing plate (20) process impurities on the inner wall of the natural gas pipeline (1), the air pump (16) is started, and the processed impurities are sucked by the suction plate (14) and transmitted to the inside of the storage box (17) through the transmission box (7). The impurities can be crushed into small particles of impurities inside the storage box (17) by the rotation of the first crushing roller (22) and the second crushing roller (23).

2. A natural gas detection device in a natural gas pipeline according to claim 1, characterized in that: A plurality of first telescopic rods (3) are installed on the outer side of the detection sensor (2); one end of the first telescopic rod (3) away from the detection sensor (2) is fixedly connected to a support frame (4); a transmission device (5) is installed on the side of the support frame (4); and the transmission crawler (6) is movably connected to the output end of the transmission device (5).

3. A natural gas detection device in a natural gas pipeline according to claim 2, characterized in that: A plurality of second telescopic rods (12) are installed on the outer side of the second rotating rod (10), and one end of the second telescopic rod (12) away from the second rotating rod (10) is fixedly connected to the scraper (13).

4. A natural gas detection device in a natural gas pipeline according to claim 1, characterized in that: An annular groove (11) is provided on the side of the second rotating rod (10), and a plurality of exhaust pipes (15) are installed on the outer side of the second rotating rod (10). The exhaust pipes (15) are fixedly connected to the suction plate (14) at one end away from the second rotating rod (10), and the annular groove (11) and the suction plate (14) are both connected to the exhaust pipes (15).

5. A natural gas detection device in a natural gas pipeline according to claim 4, characterized in that: A second servo motor (8) is installed on the side of the detection sensor (2), a first rotating rod (9) is installed on the end of the output shaft of the second servo motor (8), and an end of the first rotating rod (9) away from the second servo motor (8) is fixedly connected to the inner wall of the annular groove (11).

6. A natural gas detection device in a natural gas pipeline according to claim 3, characterized in that: A round rod (18) is installed on the outer side of the second telescopic rod (12); one end of the round rod (18) away from the second telescopic rod (12) is rotatably connected to a rotating wheel (19); and the rotating wheel (19) is in contact with the inner wall of the natural gas pipeline (1).

7. A natural gas detection device in a natural gas pipeline according to claim 1, characterized in that: A third servo motor (21) is installed on the outside of the storage box (17). The output end of the third servo motor (21) extends to the inside of the storage box (17) and is fixedly connected to the first crushing roller (22). The first crushing roller (22) and the second crushing roller (23) are respectively installed with a first gear (25) and a second gear (26) at one end outside the storage box (17). The first gear (25) and the second gear (26) are meshed with each other.

8. The natural gas detection device in a natural gas pipeline according to claim 1, characterized in that: A guide block (24) is symmetrically installed on the inner side of the storage box (17).

9. A natural gas detection device in a natural gas pipeline according to claim 4, characterized in that: The opening of the annular groove (11) is located inside the transmission box (7), and the transmission box (7) and the storage box (17) are connected.

10. A natural gas detection device in a natural gas pipeline according to claim 1, characterized in that: The scraper (13) is arc-shaped, and the scraper (13) fits the inner wall of the natural gas pipeline (1).

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