Natural gas pipeline damage detection device

Abstract

The invention relates to the technical field of pipeline damage detection devices, in particular to a natural gas pipeline damage detection device which comprises a shell, a bottom shell, a detection assembly and a pretreatment assembly, a plurality of sets of rotating rollers are rotationally installed in the shell at equal intervals, and a conveying belt is installed on the outer sides of the rotating rollers in a surrounding mode; a side plate is fixedly mounted at the top of the shell, a top plate is fixedly mounted at the top of the side plate, and a screw motor is fixedly mounted on one side of the top of the top plate; a detection assembly is fixedly installed on one side of the interior of the shell. By detecting the natural gas pipeline in multiple directions, the detected position of the pipeline can be adjusted while detection is carried out, so that comprehensive X-ray detection is carried out on the pipeline, the data precision of pipeline damage detection is improved through mutual comparison of multiple groups of detection data, the error of the natural gas pipeline damage detection device is reduced, and the detection efficiency is improved. And the influence of the hollow part in the pipeline on the detection accuracy is avoided.

Description

Technical Field

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

[0002] With the continuous growth of energy demand, natural gas, as a clean energy, plays an increasingly important role in modern society. Natural gas is flammable and explosive. Once a leak occurs, it will not only cause huge economic losses, but also pose a serious threat to the environment and human safety. In the actual installation and use of natural gas pipelines, short straight pipes and elbows are often used to connect different pipelines. The probability of leakage at the connection between the elbow and the straight pipe is greater. Therefore, higher requirements are placed on the quality of such short straight pipes and elbows. Therefore, in the production process of natural gas pipelines, the integrity of the pipeline needs to be carefully tested.

[0003] The prior art also has the following defects during use: The detection range of the natural gas pipeline damage detection device in the prior art is limited. The pipeline is a hollow circular tube structure. The traditional detection method realizes imaging detection by penetrating ultrasound or X-rays in the pipeline. When ultrasound or X-rays penetrate the hollow part of the pipeline, the propagation effect of ultrasound and X-rays will be affected, thereby affecting the detection effect. In addition, when the three-dimensional pipeline structure is detected, the plane images formed by its upper and lower parts will be superimposed and affect the accuracy of the detection results. When the traditional natural gas pipeline damage detection device detects the pipeline, since the natural gas pipeline is usually made of metal material, some metal chips and solid impurities will remain on its surface. When conducting the detection, it is necessary to judge the detection result based on the data generated by the detection and the experience of the operator, resulting in the detection result being not intuitive enough, affecting the accuracy and detection efficiency of the natural gas pipeline damage detection device.

[0004] In view of this, we propose a natural gas pipeline damage detection device to solve the existing problems. Summary of the invention

[0005] The purpose of the present invention is to provide a natural gas pipeline damage detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a natural gas pipeline damage detection device, comprising a shell, a bottom shell, a detection component and a pre-processing component, wherein a plurality of groups of rollers are rotatably installed at equal intervals inside the shell, a conveyor belt is installed around the outer side of the rollers, a side plate is fixedly installed on the top of the shell, a top plate is fixedly installed on the top of the side plate, and a screw motor is fixedly installed on one side of the top of the top plate; A detection component is fixedly installed on one side of the interior of the shell, and the detection component includes a lifting platform, an X-ray detection unit is fixedly installed on one side of the bottom of the lifting platform, and a camera is fixedly installed on one side of the bottom of the lifting platform away from the X-ray detection unit; A pre-processing component is fixedly installed at the edge of the bottom of the lifting platform close to one side of the camera; A bottom shell is fixedly installed at the bottom of the shell, a recycling box is fixedly installed on one side of the inner part of the bottom shell, and an opening is arranged at the top of the recycling box; A guide plate is fixedly mounted on a side plate close to the back side of the shell, and a first inclined surface is arranged on the front side of the guide plate.

[0007] Preferably, a control box is fixedly installed on the top of the lifting platform, a shielding cover is fixedly installed on the bottom of the lifting platform, the shielding cover is in a twenty-shaped shape, and the inner wall of the shielding cover is set to a black frosted surface, two groups of motors are installed at the central position of the shielding cover through electromagnetic slide rails, and a turning roller is fixedly installed on the output end of the motor, and a plurality of groups of concave surfaces are set on the side of the turning roller; A reciprocating motor is fixedly mounted on one side of the shielding cover away from the pre-processing component, a transmission belt is mounted around the output end of the reciprocating motor, and a marking pen is mounted on the side of the transmission belt away from the reciprocating motor via a rotating shaft; Three limit rods are installed through the interior of the lifting platform, and the top ends of the limit rods extend to the top of the top plate. A spiral rod is installed on one side of the interior of the lifting platform through a threaded structure. The top end of the spiral rod extends to the top of the top plate, and the top end of the spiral rod is fixedly connected to the screw motor.

[0008] Preferably, the pretreatment component comprises a guide cover, a fixing frame is fixedly installed on one side of the guide cover, and the fixing frame is fixedly connected to the lifting platform, a feed port is opened on the top of the guide cover, and an electrostatic brush is fixedly installed inside the feed port, and the electrostatic brushes are connected in series through wires; A scraper is fixedly installed on one side of the interior of the guide cover, the scraper is a curved structure, and the bottom of the scraper is connected to the conveyor belt in contact, a sponge board is fixedly installed on the edge of the interior of the guide cover away from the fixed frame, a cone structure is installed at equal intervals on the bottom of the sponge board, and a drainage pipe extending from the shell is fixedly installed on one side of the sponge board.

[0009] Preferably, a discharge chute is fixedly mounted on the side of the side panel, and a plurality of protective curtains are fixedly mounted on the front and both sides of the side panel.

[0010] Preferably, a conveying motor is fixedly mounted on one side of the back side of the shell, and an output end of the conveying motor is fixedly connected to one end of the rotating roller.

[0011] Preferably, a water pump is fixedly installed inside the bottom shell, a filter cartridge is fixedly installed at the input end of the water pump, and one end of the filter cartridge is fixedly connected to the recovery box, and the output end of the water pump extends out of the bottom shell and is fixedly connected to the drainage pipe.

[0012] Preferably, a plurality of groups of support frames are fixedly mounted on the bottom of the bottom shell, and a bottom plate is fixedly mounted on the bottom of the support frames.

[0013] Preferably, a drainage port is provided on one side of the top of the bottom shell, and the drainage port coincides with the top opening position of the recovery box.

[0014] Preferably, a rotating shaft is rotatably installed on one side of the front side of the side plate, and both ends of the rotating shaft are rotatably connected to the side plate, a material dividing trough is fixedly installed on the front side of the rotating shaft, a material picking plate is fixedly installed on the top of the rotating shaft, and a slope 2 is provided on the side of the material picking plate close to the detection component, and the angle between the material picking plate and the material dividing trough is degrees.

[0015] Preferably, a pneumatic telescopic rod is installed on one side of the bottom of the material distribution trough through a pin, and one end of the pneumatic telescopic rod away from the material distribution trough is connected to the front side of the shell through the pin.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention detects the natural gas pipeline in multiple directions and can adjust the detected position of the pipeline during detection, thereby performing comprehensive X-ray detection of the pipeline, and improving the data accuracy of pipeline damage detection by comparing multiple groups of detection data, reducing the error of the natural gas pipeline damage detection device, and avoiding the influence of the hollow part inside the pipeline on the accuracy of detection.

[0017] 2. The present invention installs a pretreatment component inside the natural gas pipeline damage detection device, thereby removing dust from the surface of the natural gas pipeline before formally inspecting the natural gas pipeline, and transferring metal chips and solid impurities on the pipeline surface from the pipeline surface to the natural gas pipeline damage detection device by electrostatic adsorption, thereby preventing the metal chips and solid impurities from affecting the final detection effect. While inspecting the pipeline, the surface of the transmission structure of the transmission pipeline is continuously cleaned, and a layer of clean water is coated on the surface of the conveyor belt. Water and metal pipes show different colors during X-ray inspection, which makes the contrast effect of the detection image stronger, further avoiding the appearance of noise in the background of the imaging during X-ray inspection, which affects the judgment of the pipeline damage detection result.

[0018] 3. The present invention adopts a flap structure to sort different pipelines, cooperates with the detection results of the detection component, and automatically sorts the qualified and unqualified pipelines. The sorted pipelines are easy for staff to pick up. Compared with traditional pipeline detection devices, the efficiency of the pipeline detection device can be greatly improved, the dependence of the device on manual labor is reduced, and the practicality of the device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first three-dimensional internal structure of the present invention; Figure 2 It is a schematic diagram of the front internal structure of the present invention; Figure 3 It is a schematic diagram of the front external structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 It is a second three-dimensional internal structure schematic diagram of the present invention; Figure 6 It is a schematic diagram of the three-dimensional external structure of the present invention; Figure 7 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 8 It is a schematic diagram of a partial three-dimensional structure of the present invention; Fig. 9 It is a schematic diagram of the first partial structure of the detection component of the present invention; Fig.10 It is a schematic diagram of a second partial structure of the detection component of the present invention; Fig.11 It is a schematic diagram of the local structure of the material distribution trough of the present invention.

[0020] In the figure: 1. Shell; 101. Top plate; 102. Side plate; 103. Discharge chute; 104. Distributor chute; 105. Protective curtain; 106. Screw motor; 107. Roller; 108. Conveyor belt; 109. Conveyor motor; 110. Pneumatic telescopic rod; 111. Rotating shaft; 112. Removal plate; 2. Bottom shell; 201. Support frame; 202. Recovery box; 203. Filter cartridge; 204. Water pump; 3. Guide plate; 4. Detection component; 40 1. Lifting platform; 402. Motor; 403. Flip roller; 404. Marker pen; 405. Transmission belt; 406. Reciprocating motor; 407. Shielding cover; 408. X-ray detection unit; 409. Control box; 410. Limit rod; 411. Camera; 412. Screw rod; 5. Pretreatment component; 501. Fixing frame; 502. Electrostatic brush; 503. Scraper; 504. Drainage tube; 505. Sponge board; 506. Guide cover. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1-Figure 11 As shown, a natural gas pipeline damage detection device proposed by the present invention includes a shell 1, a bottom shell 2, a detection component 4 and a pretreatment component 5. A plurality of groups of rollers 107 are rotatably installed inside the shell 1 at equal intervals, and a conveyor belt 108 is installed around the outer side of the rollers 107. A side plate 102 is fixedly installed on the top of the shell 1, and a top plate 101 is fixedly installed on the top of the side plate 102. A screw motor 106 is fixedly installed on one side of the top of the top plate 101. The screw motor 106 adopts the 1PH8107-1UM22-0LC1-Z-X04 model. The screw motor 106 rotates after being energized. Then, the spiral rod 412 is driven to rotate, and the roller 107 can be driven to rotate by the transmission motor 109. The roller 107 drives several other groups of rollers 107 to rotate synchronously through the conveyor belt 108, so that the conveyor belt 108 rolls, and the pipe fittings falling on the top of the conveyor belt 108 are horizontally transmitted. The side plate 102 and the top plate 101 cooperate to form a closed structure on the top of the shell 1, and the side plate 102 and the top plate 101 adopt a laminated structure containing lead plates, which is used to provide installation positions for surrounding components and avoid radiation damage to workers around the device during X-ray detection; A detection component 4 is fixedly installed on one side of the interior of the shell 1, and the detection component 4 includes a lifting platform 401. An X-ray detection unit 408 is fixedly installed on one side of the bottom of the lifting platform 401. A camera 411 is fixedly installed on the side of the bottom of the lifting platform 401 away from the X-ray detection unit 408. The lifting platform 401 is used to provide an installation position for surrounding components, and through the cooperation of the lifting platform 401, the limit rod 410 and the spiral rod 412, the lifting platform 401 can drive the surrounding components to move vertically, adjust the distance between the detection component 4 and the conveyor belt 108, and then perform local and overall detection on the pipe fittings. The X-ray detection unit 408 adopts the RA1100 type. The X-ray detection unit 408 irradiates the pipe fittings with X-rays so that the X-rays penetrate the pipe fittings to form an image, thereby performing damage detection on the pipe fittings. The camera 411 adopts the MHC600 type. The camera 411 can detect the surface of the pipe fitting after power is turned on, so as to determine whether there are any scratches or damages on the appearance of the detected pipe fittings. A pre-treatment component 5 is fixedly installed at the edge of the bottom of the lifting platform 401 near the camera 411. The pre-treatment component 5 can clean the surface of the pipe and the surface of the conveyor belt 108, so that the conveyor belt 108 and the pipe are kept clean before the formal inspection, so as to avoid the stains on the surface of the pipe and the conveyor belt 108 affecting the final inspection result; A bottom shell 2 is fixedly installed at the bottom of the shell 1, and a recycling box 202 is fixedly installed on one side of the inside of the bottom shell 2. The top of the recycling box 202 is provided with an opening. The bottom shell 2 can provide a location for installing the internal components. The recycling box 202 can store a certain amount of clean water, which is used to provide clean water to the pretreatment component 5, so as to improve the cleaning effect of the pretreatment component 5 on the conveyor belt 108. A number of annular magnets are fixedly installed at the bottom of the recycling box 202. Impurities stripped from the pretreatment component 5 are recovered through the recycling box 202, and solid-liquid separation is performed on the waste liquid with solid impurities, so that the clean water used for cleaning the conveyor belt 108 can be filtered and recycled; A guide plate 3 is fixedly installed on the side plate 102 near the back side inside the shell 1, and a slope 1 is provided on the front side of the guide plate 3. The guide plate 3 is used to limit the pipe fittings on the top of the conveyor belt 108, so that the pipe fittings are guided by the guide plate 3 and move to the side of the material picking plate 112 and move to the top of the material picking plate 112, so that the material picking plate 112 can take the pipe fittings out from the inside of the device.

[0023] Furthermore, a control box 409 is fixedly installed on the top of the lifting platform 401, and a shielding cover 407 is fixedly installed on the bottom of the lifting platform 401. The shielding cover 407 is in a twenty-shaped shape, and the inner wall of the shielding cover 407 is set to a black frosted surface. Two groups of motors 402 are installed at the central position of the shielding cover 407 through electromagnetic slide rails. The output end of the motor 402 is fixedly installed with a flip roller 403, and the side of the flip roller 403 is provided with a plurality of groups of concave surfaces. The control box 409 can be electrically connected to the electronic components such as the X-ray detection unit 408 and the camera 411, so as to control the electronic components to work in coordination with each other. The shielding cover 407 adopts a double-layer structure with a lead plate, and the inner wall of the shielding cover 407 is a black frosted surface, which is used to prevent X-rays from being detected. The radiation emitted by the ray detection unit 408 affects the surrounding environment. On the other hand, it can prevent the camera 411 from being affected by the reflection of the surrounding environment during detection, so as to ensure the accuracy of the device's detection results for pipe fittings. The motor 402 adopts the 9IDGG-180FP model. The motor 402 can rotate after being powered on, thereby driving the flip roller 403 to rotate back and forth. The flip roller 403 can move in the horizontal direction and is driven to rotate by the motor 402, so that the flip roller 403 can cooperate with the pipe fitting to clamp and flip it, and adjust the direction of the pipe fitting, so that the camera 411 and the X-ray detection unit 408 can detect different positions of the pipe fitting, expand the detection area of ​​the device for the pipe fitting, and prevent a large deviation in the detection result; A reciprocating motor 406 is fixedly installed on one side of the shielding cover 407 away from the pre-treatment component 5, a transmission belt 405 is installed around the output end of the reciprocating motor 406, a marking pen 404 is installed on the side of the transmission belt 405 away from the reciprocating motor 406 through a rotating shaft 111, the reciprocating motor 406 adopts the YSD243-ED4 type, the reciprocating motor 406 can rotate after being energized, and then drive the marking pen 404 to reciprocate 180° through the transmission belt 405, the transmission belt 405 can connect the reciprocating motor 406 and the marking pen 404, and then the reciprocating motor 406 drives the marking pen 404 to reciprocate 180°, and the marking pen 404 can mark the damaged position detected by the pipe fitting, so as to facilitate the viewing of the damaged position; Three limit rods 410 are installed throughout the interior of the lifting platform 401, and the top of the limit rod 410 extends to the top of the top plate 101. A spiral rod 412 is installed on one side of the interior of the lifting platform 401 through a threaded structure. The top of the spiral rod 412 extends to the top of the top plate 101, and the top of the spiral rod 412 is fixedly connected to the screw motor 106. The limit rod 410 can limit the lifting platform 401 so that the lifting platform 401 can move vertically. The spiral rod 412 can be driven to rotate by the screw motor 106, so as to drive the lifting platform 401 to move vertically through the threaded structure.

[0024] Furthermore, the pretreatment component 5 includes a guide cover 506, a fixing frame 501 is fixedly installed on one side of the guide cover 506, and the fixing frame 501 is fixedly connected to the lifting platform 401, a feeding port is opened on the top of the guide cover 506, and an electrostatic brush 502 is fixedly installed inside the feeding port, and the electrostatic brushes 502 are connected in series through wires. The guide cover 506 can guide the pipe to move to the top center position of the conveyor belt 108, so that the pipe is located at the top center position of the conveyor belt 108 for detection, and the fixing frame 501 can be fixedly connected to the bottom side of the lifting platform 401, and then when the lifting platform 401 moves vertically, the pretreatment component 5 is driven to move vertically, and the electrostatic brush 502 can be connected to an external power supply, and then the electrostatic brush 502 generates adsorption force on the solid impurities on the surface of the pipe, and the solid impurities on the surface of the pipe are transferred from the pipe to the surface of the electrostatic brush 502, so as to clean the surface of the pipe; A scraper 503 is fixedly installed on one side of the interior of the guide cover 506. The scraper 503 is a curved structure, and the bottom of the scraper 503 is in contact with the conveyor belt 108. A sponge board 505 is fixedly installed on the edge of the side of the guide cover 506 away from the fixed frame 501. Conical structures are installed at equal intervals on the bottom of the sponge board 505, and a drainage pipe 504 extending from the shell 1 is fixedly installed on one side of the sponge board 505. The scraper 503 can clean the surface of the conveyor belt 108, so that the solid dirt attached to the surface of the conveyor belt 108 is peeled off. The sponge board 505 can absorb water and contact the surface of the conveyor belt 108, and then clean the surface of the conveyor belt 108, so that the conveyor belt 108 remains clean before the pipe is transmitted, and the dirt on the surface of the conveyor belt 108 is prevented from sticking to the surface of the pipe and affecting the detection of the pipe.

[0025] Furthermore, a discharge chute 103 is fixedly installed on the side of the side panel 102, and a plurality of protective curtains 105 are fixedly installed on the front and both sides of the side panel 102. The discharge chute 103 can guide the tested pipes to be discharged, and the protective curtain 105 adopts a composite structure with lead sheets clamped inside.

[0026] Furthermore, a transmission motor 109 is fixedly installed on one side of the back of the shell 1, and the output end of the transmission motor 109 is fixedly connected to one end of the roller 107. The transmission motor 109 adopts the XX-70KTYZ type. The transmission motor 109 can rotate after being energized, thereby driving the roller 107 to rotate.

[0027] Furthermore, a water pump 204 is fixedly installed inside the bottom shell 2, a filter cartridge 203 is fixedly installed at the input end of the water pump 204, and one end of the filter cartridge 203 is fixedly connected to the recovery box 202, and the output end of the water pump 204 extends out of the bottom shell 2 and is fixedly connected to the drainage pipe 504. The water pump 204 adopts the UPA90 type. The water pump 204 can suck the water inside the recovery box 202 through the filter cartridge 203, and then transfer the water to the sponge board 505, so that the sponge board 505 can continuously clean the surface of the conveyor belt 108 after absorbing the water.

[0028] Furthermore, a plurality of support frames 201 are fixedly mounted on the bottom of the bottom shell 2, and a bottom plate is fixedly mounted on the bottom of the support frames 201. The support frames 201 can support the components on the top to ensure the overall structural stability of the device.

[0029] Furthermore, a drain port is provided on one side of the top of the bottom shell 2, and the drain port coincides with the top opening position of the recovery box 202. The drain port enables water discharged from the sponge board 505 to flow into the recovery box 202, thereby allowing the water inside the device to be recycled in the recovery box 202.

[0030] Furthermore, a rotating shaft 111 is rotatably installed on one side of the front side of the side plate 102, and both ends of the rotating shaft 111 are rotatably connected to the side plate 102, a dividing trough 104 is fixedly installed on the front side of the rotating shaft 111, and a picking plate 112 is fixedly installed on the top of the rotating shaft 111. A second inclined surface is provided on the side of the picking plate 112 close to the detection component 4, and the angle between the picking plate 112 and the dividing trough 104 is 120 degrees. The rotating shaft 111 can flip the dividing trough 104 and the picking plate 112 to facilitate the removal of the inspected pipe fittings on the top of the conveyor belt 108 from the inside of the device. The dividing trough 104 can cooperate with the picking plate 112 to remove the pipe fittings on the top of the conveyor belt 108, and cooperate with the discharge trough 103 to classify and remove the pipe fittings, thereby using the detection results to realize the screening of the pipe fittings.

[0031] Furthermore, a pneumatic telescopic rod 110 is installed on one side of the bottom of the material dividing trough 104 through a pin shaft, and the end of the pneumatic telescopic rod 110 away from the material dividing trough 104 is connected to the front side of the shell 1 through a pin shaft. The pneumatic telescopic rod 110 can flip the material dividing trough 104 by its own telescopic push and pull, so as to cooperate with the detection component 4 to automatically screen the pipes on the top of the conveyor belt 108.

[0032] Working principle: After the transmission motor 109 is powered on, it rotates and drives the roller 107 to rotate. The roller 107 drives the conveyor belt 108 to roll at a constant speed. The pipes to be tested are placed in the device in sequence. The guide cover 506 guides the pipes to pass through the electrostatic brushes 502. The electrostatic brushes 502 absorb impurities on the surface of the pipes. The pipes cleaned by the electrostatic brushes 502 fall on the top of the conveyor belt 108 and move horizontally with the conveyor belt 108. At the same time, the water pump 204 recovers the water in the recovery cylinder through the filter cylinder 203. The pipe is pulled out to the sponge plate 505, so that the sponge plate 505 expands after absorbing water and contacts the surface of the conveyor belt 108 for wiping. The scraper 503 continues to contact the conveyor belt 108 to remove dirt. The cleaned conveyor belt 108 rolls to the bottom of the guide cover 506 and contacts the pipe fittings to drive the pipe fittings to move horizontally. When the pipe fittings move to the bottom of the camera 411, the pipe fittings are visually inspected to determine whether there is any damage on the appearance of the pipe fittings. Then, the motor 402 drives the flip roller 403 to rotate. At the same time, the motor 402 drives the electromagnetic slide rail to move horizontally, so that the two flip rollers 403 rotate and move horizontally at the same time. After the flip roller 403 drives the pipe fitting to flip, the camera 411 inspects the other side of the pipe fitting. After the visual inspection, the conveyor belt 108 drives the pipe fitting to continue to move to the bottom of the X-ray detection unit 408. The X-rays emitted by the X-ray detection unit 408 penetrate the pipe fittings to perform internal flaw detection of the pipe fittings. After one X-ray inspection, the pipe fittings are flipped by another set of flip rollers 403, and a second X-ray inspection is performed again. The inspection is completed. After that, the test data is generated, and the damaged position detected is marked with a marker pen 404. The conveyor belt 108 drives the pipe to continue to move, and the pneumatic telescopic rod 110 is controlled to extend and retract according to the test data, thereby flipping the material picking plate 112 and the material dividing trough 104. When the pipe is detected to be qualified, the pipe is blocked by the material picking plate 112 and taken out of the material dividing trough 104. When the pipe is detected to be unqualified, the pipe is transported by the conveyor belt 108 and discharged from one side of the discharge trough 103 to realize the screening of qualified and unqualified products.

[0033] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A natural gas pipeline damage detection device, comprising a housing (1), a bottom housing (2), a detection component (4) and a pre-processing component (5), characterized in that: A plurality of groups of rollers (107) are rotatably mounted at equal intervals inside the housing (1), a conveyor belt (108) is mounted around the outer sides of the rollers (107), a side plate (102) is fixedly mounted on the top of the housing (1), a top plate (101) is fixedly mounted on the top of the side plate (102), and a screw motor (106) is fixedly mounted on one side of the top of the top plate (101); A detection component (4) is fixedly mounted on one side of the interior of the shell (1), the detection component (4) comprising a lifting platform (401), an X-ray detection unit (408) is fixedly mounted on one side of the bottom of the lifting platform (401), and a camera (411) is fixedly mounted on a side of the bottom of the lifting platform (401) away from the X-ray detection unit (408); A pre-processing component (5) is fixedly installed at an edge of the bottom of the lifting platform (401) close to the camera (411); A bottom shell (2) is fixedly mounted on the bottom of the shell (1), a recovery box (202) is fixedly mounted on one side of the interior of the bottom shell (2), and an opening is provided on the top of the recovery box (202); A guide plate (3) is fixedly mounted on a side plate (102) close to the back side inside the housing (1), and a first inclined surface is provided on the front side of the guide plate (3).

2. A natural gas pipeline damage detection device according to claim 1, characterized in that: A control box (409) is fixedly mounted on the top of the lifting platform (401), a shielding cover (407) is fixedly mounted on the bottom of the lifting platform (401), the shielding cover (407) is in a twenty-shaped shape, and the inner wall of the shielding cover (407) is provided with a black frosted surface, two groups of motors (402) are mounted at the central position of the shielding cover (407) via electromagnetic slide rails, a turning roller (403) is fixedly mounted on the output end of the motor (402), and a plurality of groups of concave surfaces are provided on the side of the turning roller (403); A reciprocating motor (406) is fixedly mounted on a side of the shielding cover (407) away from the pre-processing component (5); a transmission belt (405) is mounted around the output end of the reciprocating motor (406); and a marking pen (404) is mounted on a side of the transmission belt (405) away from the reciprocating motor (406) via a rotating shaft; Three limit rods (410) are installed through the interior of the lifting platform (401), and the top ends of the limit rods (410) extend to the top of the top plate (101). A screw rod (412) is installed on one side of the interior of the lifting platform (401) via a threaded structure, and the top end of the screw rod (412) extends to the top of the top plate (101), and the top end of the screw rod (412) is fixedly connected to the screw motor (106).

3. A natural gas pipeline damage detection device according to claim 2, characterized in that: The pretreatment component (5) comprises a guide cover (506), a fixing frame (501) is fixedly mounted on one side of the guide cover (506), and the fixing frame (501) is fixedly connected to the lifting platform (401), a feed port is formed at the top of the guide cover (506), and an electrostatic brush (502) is fixedly mounted inside the feed port, and the electrostatic brushes (502) are connected in series via wires; A scraper (503) is fixedly mounted on one side of the interior of the guide cover (506); the scraper (503) is a curved structure, and the bottom of the scraper (503) is in contact with the conveyor belt (108); a sponge plate (505) is fixedly mounted on an edge of the interior of the guide cover (506) away from the fixed frame (501); a conical structure is evenly spaced at the bottom of the sponge plate (505); and a drainage pipe (504) extending out of the shell (1) is fixedly mounted on one side of the sponge plate (505).

4. A natural gas pipeline damage detection device according to claim 1, characterized in that: A material discharge chute (103) is fixedly mounted on the side of the side plate (102), and a plurality of protective curtains (105) are fixedly mounted on the front and both sides of the side plate (102).

5. A natural gas pipeline damage detection device according to claim 1, characterized in that: A conveying motor (109) is fixedly mounted on one side of the back side of the housing (1), and an output end of the conveying motor (109) is fixedly connected to one end of a rotating roller (107).

6. A natural gas pipeline damage detection device according to claim 5, characterized in that: A water pump (204) is fixedly installed inside the bottom shell (2), a filter cartridge (203) is fixedly installed at the input end of the water pump (204), and one end of the filter cartridge (203) is fixedly connected to the recovery box (202), and an output end of the water pump (204) extends out of the bottom shell (2) and is fixedly connected to the drainage pipe (504).

7. A natural gas pipeline damage detection device according to claim 1, characterized in that: A plurality of groups of support frames (201) are fixedly mounted on the bottom of the bottom shell (2), and a bottom plate is fixedly mounted on the bottom of the support frame (201).

8. A natural gas pipeline damage detection device according to claim 1, characterized in that: A drainage outlet is provided on one side of the top of the bottom shell (2), and the drainage outlet coincides with the top opening position of the recovery box (202).

9. A natural gas pipeline damage detection device according to claim 1, characterized in that: A rotating shaft (111) is rotatably mounted on one side of the front face of the side plate (102), and both ends of the rotating shaft (111) are rotatably connected to the side plate (102). A material distribution trough (104) is fixedly mounted on the front face of the rotating shaft (111), and a material picking plate (112) is fixedly mounted on the top of the rotating shaft (111). A second inclined surface is provided on a side of the material picking plate (112) close to the detection component (4), and an angle between the material picking plate (112) and the material distribution trough (104) is 120 degrees.

10. A natural gas pipeline damage detection device according to claim 9, characterized in that: A pneumatic telescopic rod (110) is installed on one side of the bottom of the material distribution trough (104) via a pin shaft, and one end of the pneumatic telescopic rod (110) away from the material distribution trough (104) is connected to the front side of the housing (1) via a pin shaft.

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