Multifunctional pipe cleaning device for natural gas pipeline

Abstract

The utility model relates to the field of petroleum and natural gas engineering, and discloses a multifunctional pipe cleaning device for a natural gas pipeline, which comprises an inner diameter wall, the bottom of the outer wall of the inner diameter wall is fixedly connected with a lower ring gear, the top of the outer wall of the inner diameter wall is rotatably connected with an upper ring gear, and the left side and the right side of the outer wall of the inner diameter wall are rotatably connected with bevel gears. The adjacent sides of the outer wall of the lower ring gear and the outer wall of the upper ring gear are both connected with the two bevel gears in a meshed mode, and the outer side of the upper ring gear is fixedly connected with a first shell. According to the pipe wall cleaning device, the inner lower embedded fan blades and the inner upper embedded fan blades are pushed by a medium in the pipe to rotate to drive the second shell and the third shell to rotate, so that the lower scraping brush and the upper scraping brush clean the pipe wall at the same time, and then the lower scraping brush and the upper scraping brush rotate reversely at the same time through a coaxial reverse rotation structure formed by the lower ring gear, the upper ring gear and the two bevel gears; dust is prevented from accumulating in the same direction to form stubborn dirt due to one-way cleaning.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of petroleum and natural gas engineering, especially to the multifunctional pigging device for natural gas pipeline. BACKGROUND

[0002] The multifunctional pigging device for natural gas pipeline is widely used in the field of petroleum and natural gas engineering, and the main structure comprises a pig body, a pigging and detecting assembly and a power and control device. When running, the device is first put into a launching cylinder of the pipeline, and then pushed into the pipeline by medium pressure and external power. Subsequently, the device advances under the action of the power and control device, the pigging and detecting assembly works and collects data. Finally, the device is captured at the receiving end, and the device is checked and maintained and data is analyzed, thereby providing a basis for pipeline maintenance and management.

[0003] The early multifunctional pigging device for natural gas pipeline has a simple structure, which is composed of a basic power structure, a pig brush head and a detecting element. When running, the device is pushed by the pressure difference of natural gas in the pipeline. The brush head cleans the pipeline, and the detecting element detects basic problems. Because the brush head is single, the cleaning effect is poor. The existing device optimizes the pig brush assembly by optimizing the arrangement of bristles and the structure of the brush body and improving the connection and fixing mode, thereby solving the problem of poor cleaning effect. However, the existing device still has the problem of one-way cleaning. When cleaning, dust accumulates in one direction, and gradually forms stubborn dirt, which affects the cleaning effect of the pipeline and subsequent use. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a multifunctional pigging device for natural gas pipeline, which aims to improve the problem of dirt accumulation caused by one-way cleaning in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: the multifunctional pigging device for natural gas pipeline comprises an inner diameter wall, the outer wall bottom of the inner diameter wall is fixedly connected with a lower ring gear, the outer wall top of the inner diameter wall is rotatably connected with an upper ring gear, the outer wall left and right sides of the inner diameter wall are rotatably connected with bevel gears, the outer wall of the lower ring gear and the outer wall of the upper ring gear adjacent side are rotatably connected with two bevel gears, the outer side of the upper ring gear is fixedly connected with an outer shell one, the inner wall of the outer shell one is rotatably connected with the outer side of the lower ring gear, the outer wall bottom of the outer shell one is fixedly connected with an outer shell two, the inner wall of the outer shell two is fixedly connected with an inner lower embedded fan blade, the outer wall of the outer shell two is fixedly connected with a lower scraping brush, the inner wall upper side of the inner diameter wall is fixedly connected with an outer shell two, the inner wall of the outer shell two is fixedly connected with an inner upper embedded fan blade, the outer wall of the outer shell two is fixedly connected with an upper scraping brush, and the inner wall of the outer shell two is provided with a stabilizing mechanism. The stabilizing mechanism is used for controlling the stable advancement of the device in the high-pressure straight pipeline.

[0006] Further description of the above technical scheme:

[0007] The stabilizing mechanism comprises a cross base frame fixedly connected to the top of the inner wall of the second shell, a vertical rod fixedly connected to the top of the cross base frame, a top block fixedly connected to the top end of the vertical rod, a crank connecting rod rotatably connected to the front and rear sides of the outer wall of the top block, a spring fixedly connected to the bottom of the top block, a sliding block fixedly connected to one end of the spring, the inner wall of the sliding block being slidably connected to the outer wall of the vertical rod, a speed reducer rotatably connected to the bottom of the crank connecting rod, and the outer wall of the sliding block being rotatably connected to the adjacent side of the bottom of the two crank connecting rods.

[0008] As a further description of the above technical solution:

[0009] The bottom of the second shell is fixedly connected with a vertical column on the front and rear sides, and the bottom end of the two vertical columns is fixedly connected with a steel wire screen.

[0010] As a further description of the above technical solution:

[0011] The outer wall right side of the second shell is fixedly connected with a buckle, and the outer wall top of the buckle is slidably connected with a humidity recorder.

[0012] As a further description of the above technical solution:

[0013] The outer wall front side of the second shell is fixedly connected with a laser receiver, and the inner wall front side of the laser receiver is fixedly connected with the laser emitter.

[0014] As a further description of the above technical solution:

[0015] The outer wall rear side of the second shell is fixedly connected with a low-frequency positioner, and the bottom of the low-frequency positioner is threadedly connected with a radio frequency amplifier.

[0016] As a further description of the above technical solution:

[0017] The outer wall left side of the first shell is fixedly connected with an S magnetic pole, and the outer wall right side of the first shell is fixedly connected with an N magnetic pole.

[0018] As a further description of the above technical solution:

[0019] The outer wall right side of the vertical rod is fixedly connected with an infrared recorder, and the bottom of the infrared recorder is fixedly connected with a storage.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, first the medium in the pipe pushes the inner lower embedded fan blade and the inner upper embedded fan blade to rotate, the inner lower embedded fan blade drives the shell no. 2 to rotate, the inner upper embedded fan blade drives the shell no. 3 to rotate, the lower scraping brush and the upper scraping brush clean the pipe wall simultaneously, then through the coaxial reverse structure that the inner upper embedded fan blade and the inner lower embedded fan blade rotate in opposite directions, the lower scraping brush and the upper scraping brush rotate reversely simultaneously through the lower ring gear, the upper ring gear and the two bevel gears, prevent stubborn dirt from accumulating in the same direction caused by one-way cleaning.

[0022] 2. In the utility model, when the device rotates too fast, the shell no. 3 drives the relevant components to operate when rotating, the speed reducer gradually opens under the action of centrifugal force, drives the crank connecting rod to spread on the top block, the sliding block slides on the vertical rod and extrudes the spring, the spring slows down the speed of the speed reducer, when the device reaches the threshold value, the speed reducer and the pipe wall friction slow down the device, until the speed is uniform, the spring force and the friction force of the speed reducer balance the centrifugal force, the device keeps uniform rotation and advances, realizes stable operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective view of the multifunctional pipe cleaning device for natural gas pipeline provided by the utility model;

[0024] Figure 2 It is the right view of the multifunctional pipe cleaning device for natural gas pipeline provided by the utility model;

[0025] Figure 3 It is the left view of the multifunctional pipe cleaning device for natural gas pipeline provided by the utility model;

[0026] Figure 4 It is the sectional view of the multifunctional pipe cleaning device for natural gas pipeline provided by the utility model;

[0027] Figure 5 It is the split view of the multifunctional pipe cleaning device for natural gas pipeline provided by the utility model.

[0028] LEGEND:

[0029] 1, inner diameter wall; 2, stabilizing mechanism; 201, cross base; 202, vertical rod; 203, top block; 204, crank connecting rod; 205, sliding block; 206, spring; 207, speed reducer; 3, lower ring gear; 4, upper ring gear; 5, bevel gear; 6, shell no. 1; 7, shell no. 2; 8, inner lower embedded fan blade; 9, lower scraping brush; 10, inner upper embedded fan blade; 11, shell no. 3; 12, upper scraping brush; 13, steel wire screen; 14, stand column; 15, humidity recorder; 16, laser emitter; 17, laser receiver; 18, N magnetic pole; 19, S magnetic pole; 20, infrared recorder; 21, storage; 22, low-frequency locator; 23, buckle; 24, radio frequency amplifier. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] With reference to Figure 1 , Figure 4 and Figure 5 , the utility model provides a kind of embodiment of multifunctional pigging device for natural gas pipeline, including inner diameter wall 1, inner diameter wall 1 drives lower ring gear 3 rotation, the outer wall bottom of inner diameter wall 1 is fixedly connected with lower ring gear 3, lower ring gear 3 drives bevel gear 5 rotation, the outer wall top of inner diameter wall 1 is rotatably connected with upper ring gear 4, upper ring gear 4 drives shell one 6 rotation, the left and right sides of the outer wall of inner diameter wall 1 are rotatably connected with bevel gear 5, bevel gear 5 drives upper ring gear 4 rotation, the outer wall of lower ring gear 3 and the outer wall of upper ring gear 4 adjacent side are all meshingly connected with two bevel gears 5, to realize the rotation of upper ring gear 3 and lower ring gear 4 towards opposite direction, the outer side of upper ring gear 4 is fixedly connected with shell one 6, shell one 6 is used to protect while driving shell two 7 rotation, the inner wall of shell one 6 is rotatably connected with the outer side of lower ring gear 3, the outer wall bottom of shell one 6 is fixedly connected with shell two 7, shell two 7 drives lower wiper 9 rotation, the inner wall of shell two 7 is fixedly connected with inner lower embedded fan blade 8, inner lower embedded fan blade 8 is blown by pipe medium, rotates towards one direction, the outer wall of shell two 7 is fixedly connected with lower wiper 9, lower wiper 9 carries out first cleaning to natural gas pipeline, the inner wall upper side of inner diameter wall 1 is fixedly connected with shell three 11, inner diameter wall 1 drives shell three 11 rotation, shell three 11 drives upper wiper 12 rotation, the inner wall of shell three 11 is fixedly connected with inner upper embedded fan blade 10, inner upper embedded fan blade 10 is opposite to the orientation of inner lower embedded fan blade 8, and it is oriented rotation under the driving of pipe medium, the outer wall of shell three 11 is fixedly connected with upper wiper 12, upper wiper 12 carries out second cleaning in reverse direction to the pipe wall after first cleaning, to avoid dirt accumulation along the direction of wiper, the inner wall of shell three 11 is provided with stabilizing mechanism 2, and stabilizing mechanism 2 is used to control device to advance stably in high-pressure straight pipeline;

[0032] Specific, the tube medium push inside the lower embedded fan 8 rotation, inside the lower embedded fan 8 drive shell 27 rotation, shell 27 outer wall lower brush 9 on the tube wall for the first time cleaning, while driving shell 6 rotation, shell 6 drive upper ring gear 4 rotation, through two bevel gears 5 make lower ring gear 3 reverse, lower ring gear 3 drive inner diameter wall 1 rotation, inner diameter wall 1 drive shell three 11 rotation, shell three 11 while under the drive of the inner upper embedded fan 10 rotation, make the upper brush 12 on the tube wall for secondary cleaning, because the first cleaning and secondary cleaning direction is opposite, avoid one-way brush cleaning makes dust in the same direction to produce stubborn dirt.

[0033] With reference to Figure 1 , Figure 4 and Figure 5 , the stabilizing mechanism 2 comprises a cross chassis 201, the cross chassis 201 is the bearing structure of the stabilizing mechanism 2, the cross chassis 201 is fixedly connected to the inner wall top of the shell three 11, the top of the cross chassis 201 is fixedly connected with a vertical rod 202, the vertical rod 202 facilitates the sliding of the sliding block 205, the top end of the vertical rod 202 is fixedly connected with a top block 203, the top block 203 is used for limiting the sliding of the sliding block 205, the outer wall front and back sides of the top block 203 are rotatably connected with a crank connecting rod 204, the crank connecting rod 204 is composed of a horizontal rod and a short vertical rod rotatably connected in the middle, the bottom of the top block 203 is fixedly connected with a spring 206, the spring 206 plays a role of buffering and resetting, one end of the spring 206 is fixedly connected with a sliding block 205, the sliding block 205 slidingly drives the crank connecting rod 204, so that the speed reduction block 207 is opened, the inner wall of the sliding block 205 is slidingly connected to the outer wall of the vertical rod 202, the bottom of the crank connecting rod 204 is rotatably connected with a speed reduction block 207, the speed reduction block 207 is in contact with the tube wall, so that the speed of the device tends to be uniform, the outer wall of the sliding block 205 is rotatably connected with the adjacent side of the bottom of the two crank connecting rods 204;

[0034] Specifically, the speed reduction block 207 gradually opens under the action of centrifugal force, when the speed of the device reaches a threshold value, the crank connecting rod 204 drives the bottom sliding block 205 to press the spring 206 upward and slide, so that the crank connecting rod 204 gradually opens, so that the speed reduction block 207 is in friction with the tube wall, until the device is at a uniform speed, when the speed of the device slows down, the spring 206 makes the sliding block 205 move downward to shrink the crank connecting rod 204, so that the speed reduction block 207 is no longer in contact with the tube wall, so as to make the device stably advance in the tube wall.

[0035] With reference to Figure 2 , Figure 3 and Figure 5The bottom of the shell two 7 is fixedly connected with the stand column 14 on the front and rear sides, the stand column 14 is used for fixing the steel wire screen 13, the bottom of the two stand columns 14 is fixedly connected with the steel wire screen 13, the steel wire screen 13 will not be deformed due to the forward movement, at the same time, the dust scraped off will be collected on the steel wire screen 13 through the suction of the inner lower embedded fan blade 8 and the inner upper embedded fan blade 10, the outer wall right side of the shell two 7 is fixedly connected with the buckle 23, the buckle 23 is used for fixing the humidity recorder 15 and facilitating the taking and reading data of the humidity recorder 15, the outer wall top of the buckle 23 is slidably connected with the humidity recorder 15, the humidity recorder 15 is used for recording the content of water vapor in the medium in the pipe, the outer wall front side of the shell two 7 is fixedly connected with the laser receiver 17, the laser receiver 17 is used for receiving the laser emitted by the laser emitter 16, scanning and measuring the distance of the pipe wall, judging whether there is damage in the pipe wall, the inner wall front side of the laser receiver 17 is fixedly connected with the laser emitter 16;

[0036] Specifically, the steel wire screen 13 collects the scraped dust gathered through the inner lower embedded fan blade 8 and the inner upper embedded fan blade 10, the humidity recorder 15 is buckled on the shell two 7 through the buckle 23, records the water vapor content in the pipe, the laser emitted by the laser emitter 16 is reflected and received by the laser receiver 17, the surface of the pipe wall is measured, and the pipe wall gap and loss are investigated.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the outer wall rear side of the shell two 7 is fixedly connected with the low-frequency locator 22, the low-frequency locator 22 can emit low-frequency signals to penetrate the pipe wall, facilitating the confirmation of the position of the device on the pipe wall, the bottom of the low-frequency locator 22 is threadedly connected with the radio frequency amplifier 24, the radio frequency amplifier 24 is used for amplifying the signal of the low-frequency locator 22, the outer wall left side of the shell one 6 is fixedly connected with the S magnetic pole 19, the outer wall right side of the shell one 6 is fixedly connected with the N magnetic pole 18, the S magnetic pole 19 and the N magnetic pole 18 are arranged at electromagnetic accelerating coils at a distance on the outer wall of the natural gas pipe to accelerate the device, the outer wall right side of the stand rod 202 is fixedly connected with the infrared recorder 20, the infrared recorder 20 records the cleaning process and the emergency situation, the bottom of the infrared recorder 20 is fixedly connected with the storage 21, and the storage 21 is used for improving the storage capacity of the infrared recorder 20 and facilitating reading;

[0038] Specifically, the signal of the low-frequency locator 22 is amplified through the radio frequency amplifier 24, so that the signal can penetrate the pipe wall, at the same time, accelerating electromagnetic coils are arranged at a distance on the outer wall of the natural gas pipe, the S magnetic pole 19 and the N magnetic pole 18 accelerate under the electromagnetic coils, and the infrared recorder 20 records the cleaning process and the emergency situation in the pipe.

[0039] Working principle: before using the device, first the medium in the tube pushes the inner lower embedded fan blade 8 and the inner upper embedded fan blade 10 to rotate, the inner lower embedded fan blade 8 drives the shell two 7 to rotate, the inner upper embedded fan blade 10 drives the shell three 11 to rotate, the lower scraping brush 9 and the upper scraping brush 12 clean the pipe wall, at the same time, the inner upper embedded fan blade 10 and the inner lower embedded fan blade 8 are opposite, through the coaxial reverse structure composed of the middle lower ring gear 3, the upper ring gear 4 and the two bevel gears 5, the lower scraping brush 9 and the upper scraping brush 12 rotate reversely at the same time, so that the stubborn dirt is avoided to be formed by one-way cleaning and dust accumulation in one direction;

[0040] Further, under the rotation of the shell three 11, the cross bottom frame 201 is driven to rotate, the deceleration block 207 is gradually opened under the action of centrifugal force, at the same time, the crank connecting rod 204 is expanded on the top block 203, the sliding block 205 is driven to slide on the vertical rod 202 and extrude the spring 206, the spring 206 slows down the expansion speed of the deceleration block 207, until the device rotation speed reaches the threshold value, the deceleration block 207 starts to slow down the device by friction with the pipe wall, until the device rotation speed reaches uniform speed, the spring force, the friction force and the centrifugal force of the deceleration block 207 are balanced, the device keeps rotating forward at uniform speed, so that the stable operation of the device in the pipe wall is achieved.

[0041] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A multi-functional pipeline cleaning device for natural gas pipelines, comprising an inner diameter wall (1), characterized in that: A lower ring gear (3) is fixedly connected to the bottom of the outer wall of the inner diameter wall (1), and an upper ring gear (4) is rotatably connected to the top of the outer wall of the inner diameter wall (1). Bevel gears (5) are rotatably connected to both the left and right sides of the outer wall of the inner diameter wall (1). The outer walls of the lower ring gear (3) and the upper ring gear (4) are meshed with two bevel gears (5) on adjacent sides. A first outer shell (6) is fixedly connected to the outer side of the upper ring gear (4). The inner wall of the first outer shell (6) is rotatably connected to the outer side of the lower ring gear (3). The outer wall of the first outer shell (6)... The bottom is fixedly connected to the outer shell 2 (7), the inner wall of the outer shell 2 (7) is fixedly connected to the inner lower embedded fan blade (8), the outer wall of the outer shell 2 (7) is fixedly connected to the lower scraper (9), the inner wall of the inner diameter wall (1) is fixedly connected to the upper side of the inner wall of the inner diameter wall (1), the inner wall of the outer shell 3 (11) is fixedly connected to the inner upper embedded fan blade (10), the outer wall of the outer shell 3 (11) is fixedly connected to the upper scraper (12), and the inner wall of the outer shell 3 (11) is provided with a stabilizing mechanism (2), which is used to control the device to move forward stably in the high pressure straight pipeline.

2. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: The stabilizing mechanism (2) includes a cross-shaped base frame (201), which is fixedly connected to the top of the inner wall of the outer shell (11). A vertical rod (202) is fixedly connected to the top of the cross-shaped base frame (201). A top block (203) is fixedly connected to the top of the vertical rod (202). A crank connecting rod (204) is rotatably connected to the front and rear sides of the outer wall of the top block (203). A spring (206) is fixedly connected to the bottom of the top block (203). A slider (205) is fixedly connected to one end of the spring (206). The inner wall of the slider (205) is slidably connected to the outer wall of the vertical rod (202). A deceleration block (207) is rotatably connected to the bottom of the crank connecting rod (204). The bottom adjacent sides of the two crank connecting rods (204) are rotatably connected to the outer wall of the slider (205).

3. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: The bottom front and rear sides of the outer shell 2 (7) are fixedly connected with columns (14), and the bottom ends of the two columns (14) are fixedly connected with wire screens (13).

4. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: A buckle (23) is fixedly connected to the right side of the outer wall of the second outer casing (7), and a humidity recorder (15) is slidably connected to the top of the outer wall of the buckle (23).

5. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: A laser receiver (17) is fixedly connected to the front side of the outer wall of the outer shell (7), and a laser emitter (16) is fixedly connected to the front side of the inner wall of the laser receiver (17).

6. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: A low-frequency locator (22) is fixedly connected to the rear side of the outer wall of the second outer shell (7), and a radio frequency amplifier (24) is threadedly connected to the bottom of the low-frequency locator (22).

7. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 1, characterized in that: An S magnetic pole (19) is fixedly connected to the left side of the outer wall of the outer shell (6), and an N magnetic pole (18) is fixedly connected to the right side of the outer wall of the outer shell (6).

8. The multi-functional pipeline cleaning device for natural gas pipelines according to claim 2, characterized in that: An infrared recorder (20) is fixedly connected to the right side of the outer wall of the pole (202), and a storage device (21) is fixedly connected to the bottom of the infrared recorder (20).

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