Gas pipeline purging device

Abstract

The present application belongs to the technical field of gas pipeline cleaning, and relates to a gas pipeline blowing device, which comprises a center support rod, a traveling mechanism, a blowing mechanism, a cleaning mechanism and a slag removal mechanism. The traveling mechanism is used to drive the center support rod to move along the gas pipeline. The blowing mechanism comprises an electric fan. The cleaning mechanism comprises a cleaning motor and a plurality of cleaning rods. The cleaning motor is installed on the center support rod, and the plurality of cleaning rods are arranged around the cleaning motor. The top end of the cleaning rod abuts against the inner wall of the gas pipeline. The slag removal mechanism comprises a dust suction box and a dust suction rod. The dust suction box is fixed on the center support rod, and the dust suction box and the dust suction rod are connected through a hose. The opening of the dust suction rod faces the bottom of the gas pipeline. After the dust and sundries are stripped from the inner wall of the gas pipeline by the cleaning mechanism, the blowing mechanism blows out the lighter dust from the gas pipeline, and the heavier sundries are collected by the slag removal mechanism and then taken out of the gas pipeline, so that the gas pipeline is cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas pipeline cleaning, in particular to a gas pipeline blowing device. BACKGROUND

[0002] After the natural gas pipeline is erected, foreign matter cleaning is needed, if there are still foreign matters in the pipeline, many faults and accidents will be caused in the debugging stage, such as combustion chamber nozzle blockage, damage, debugging delay, etc., the cleaning work of the natural gas pipeline should be carried out by air blowing before the unit operation to remove the foreign matters remaining in the pipeline or entering the system during the pipeline installation process.

[0003] The patent with publication number CN209061766U discloses a blowing device for gas pipeline, which comprises a bottom shell, a connecting column, a brush, an extension slide column, a slide, a rolling pulley, a rotating shaft, a sleeve wheel, a small belt and a fan; four groups of connecting columns are integrally arranged in the middle bottom of the bottom shell, and the top cover is fixed on the top of the bottom shell by inserting the screw through the top cover through hole into the connecting column top screw hole; a storage battery is fixedly arranged in the middle bottom of the bottom shell through clamping, and a remote control switch is fixedly arranged on the top of the storage battery through wiring connection, and the remote control switch is fixedly provided with a signal line through the side of the bottom shell; the arrangement of the cleaning felt and the brush provides good cleaning function for the blowing device, which facilitates the direct cleaning and pushing out of the dust in the pipeline, and the cleaning felt and the brush can be adjusted in working position through the top wire, which is beneficial to the blowing device suitable for pipelines with different diameters. However, this patent still has some deficiencies: dust is easy to accumulate at the brush and the felt, and it is difficult to clean it in time when the dust accumulates too much, which affects the pipeline cleaning effect. SUMMARY

[0004] In order to solve the problem that the dust and debris in the gas pipeline are difficult to clean at one time, the present application provides a gas pipeline blowing device to solve the above problems.

[0005] The technical scheme adopted by the present application to solve its technical problems is: the gas pipeline blowing device, including the center support rod, also including the traveling mechanism, the blowing mechanism, the cleaning mechanism and the slag removal mechanism, the traveling mechanism is fixed on the center support rod near the position of both ends, the traveling mechanism is used to drive the center support rod to move along the gas pipeline, the blowing mechanism includes two electric fans with the same rotating direction, the electric fan is installed on the end of the center support rod, the cleaning mechanism includes a cleaning motor and a plurality of cleaning rods, the cleaning motor is installed on the center support rod and is located between the blowing mechanism and the traveling mechanism, a plurality of the cleaning rods are arranged around the cleaning motor, the cleaning motor is used to drive a plurality of the cleaning rods to rotate around the center support rod as the axis, the top end of the cleaning rod abuts against the inner wall of the gas pipeline, the slag removal mechanism includes a dust suction box and a dust suction rod, the dust suction box is fixed on the center support rod, the dust suction box and the dust suction rod are connected through a hose, and the opening of the dust suction rod faces the bottom of the gas pipeline.

[0006] As preferred, the traveling mechanism includes a mirror-symmetrically arranged base, three legs are fixed at equal intervals around each base, one end of the leg is hinged to the base, the other end of the leg is fixed with an electric wheel, the middle part of the leg is hinged with a spring seat, a pressing spring is fixed between the spring seat and the base, and the pressing spring can push the leg to make the electric wheel abut against the inner wall of the gas pipeline.

[0007] As preferred, the cleaning rod is an elastic telescopic rod, a cleaning brush is fixed at the top end of the cleaning rod, and the cleaning brush abuts against the inner wall of the gas pipeline.

[0008] As preferred, the cleaning mechanism further includes a compressed air bag, the compressed air bag is fixed at the bottom of the cleaning brush, a plurality of air holes are formed at the connection between the cleaning brush and the compressed air bag, the air holes are in communication with the inside of the compressed air bag, an extrusion plate is fixed at the bottom of the compressed air bag, an arc-shaped push block is fixed below the extrusion plate, when the cleaning rod moves, the arc-shaped push block can pass through the upper surface of the leg and extrude the compressed air bag.

[0009] As preferred, the slag removal mechanism further includes a connecting seat and an exhaust fan, the connecting seat is fixed at the bottom of the dust suction box, the upper end of the dust suction rod is hinged to the connecting seat, the exhaust fan is fixed on the outer wall of the dust suction box and is in communication with the inside of the dust suction box, and a filter layer is further fixed at the connection between the dust suction box and the exhaust fan.

[0010] Preferably, two limit wheels are installed on both sides of the opening of the dust collection rod, the limit wheels are rotatably connected with the side wall of the dust collection rod, and the diameter of the limit wheels is greater than the width of the dust collection rod, so that the distance between the opening of the dust collection rod and the inner wall of the gas pipeline remains unchanged when the limit wheels roll along the inner wall of the gas pipeline.

[0011] Preferably, end plates are connected to both ends of the dust collection box, the central support rod passes through and is fixedly connected with the end plates, the connecting seat is fixed on one of the end plates, and the air blower is fixed on the other end plate.

[0012] The present application has the following advantages:

[0013] Firstly, the traveling mechanism and the cleaning mechanism are provided, the cleaning mechanism includes a compressed air bag fixed to the bottom of the cleaning brush, a plurality of air holes are formed at the connection between the cleaning brush and the compressed air bag, the air holes are in communication with the inside of the compressed air bag, an extrusion plate is fixed to the bottom of the compressed air bag, and an arc-shaped push block is fixed below the extrusion plate; when the cleaning rod moves, the arc-shaped push block can pass over the upper surface of the supporting leg and extrude the compressed air bag; each time the arc-shaped push block passes over the supporting leg, the supporting leg pushes the arc-shaped push block to gradually move upwards to compress the compressed air bag; after the compressed air bag is compressed, the airflow is pushed to flow from the air holes to the surface of the cleaning brush to form intermittent airflow, which blows the dirt and dust adsorbed on the cleaning brush down to avoid accumulation of dirt on the cleaning brush; and the dirt and dust falling from the cleaning brush are immediately blown away by the electric fan of the air blowing mechanism to avoid re-adhesion of the dirt and dust to the cleaning brush.

[0014] Secondly, the slag removal mechanism is provided, including a dust collection box and a dust collection rod, the dust collection box is fixed to the central support rod, and the dust collection box and the dust collection rod are connected through a hose; the opening of the dust collection rod faces the bottom of the gas pipeline; when the limit wheels roll along the inner wall of the gas pipeline, the distance between the opening of the dust collection rod and the inner wall of the gas pipeline remains unchanged, and the opening of the dust collection rod and the inner wall of the gas pipeline maintain a certain gap to facilitate smooth airflow, so that the airflow can carry the dirt into the dust collection rod, i.e., after the cleaning mechanism peels off the dust and dirt from the inner wall of the gas pipeline, the air blowing mechanism blows out the lighter dust from the gas pipeline, and the heavier dirt is collected by the slag removal mechanism and then taken out of the gas pipeline to clean the gas pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0016] Figure 1 is the overall structure schematic diagram of the present application;

[0017] Figure 2 is the leg structure schematic diagram of the present application;

[0018] Figure 3 is the compressed air bag structure schematic diagram of the present application;

[0019] Figure 4 is the dust collection box structure schematic diagram of the present application;

[0020] Figure 5 is the dust collection rod structure schematic diagram of the present application.

[0021] The figure mark: 1, center support rod; 2, traveling mechanism; 3, air blowing mechanism; 4, cleaning mechanism; 5, slag removal mechanism; 6, electric fan; 7, cleaning motor; 8, cleaning rod; 9, dust collection box; 10, dust collection rod; 11, base; 12, leg; 13, electric wheel; 14, spring seat; 15, abutting spring; 16, cleaning brush; 17, compressed air bag; 18, extrusion plate; 19, arc push block; 20, connecting seat; 21, air extractor; 22, limiting wheel; 23, end plate; 24, slag removal port. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments.

[0023] As shown in the drawings, Figures 1 to 5 The present application provides a gas pipeline purging device, which comprises a center support rod 1, and further comprises a traveling mechanism 2, an air blowing mechanism 3, a cleaning mechanism 4 and a slag removal mechanism 5. The traveling mechanism 2 is fixed on the center support rod 1 near both ends, and is used to drive the center support rod 1 to move along the gas pipeline. The traveling mechanism 2 comprises mirror-symmetrically arranged bases 11, three legs 12 are fixed around each base 11 at equal intervals, one end of each leg 12 is hinged to the base 11, and an electric wheel 13 is fixed to the other end of each leg 12. A spring seat 14 is hinged to the middle part of each leg 12, and an abutting spring 15 is fixed between the spring seat 14 and the base 11. The abutting spring 15 can push the leg 12 to make the electric wheel 13 abut against the inner wall of the gas pipeline. When cleaning the gas pipeline, the center support rod 1 is sent into the gas pipeline, at this time, the electric wheels 13 at the ends of the plurality of legs 12 abut against the inner wall of the gas pipeline, and the purging device as a whole is driven to move along the gas pipeline by the electric wheels 13, so as to blow away the sundries in the gas pipeline.

[0024] The blower mechanism 3 includes two electric fans 6 that rotate in the same direction, and the airflow generated always flows towards the rear of the purging device as a whole. The electric fans 6 are installed at the end of the central support rod 1. Therefore, the electric fans 6 can always discharge the airflow in the gas pipeline to the outside of the gas pipeline during the forward and backward processes, so as to blow out the small impurities in the gas pipeline through the airflow. The simultaneous rotation of the two electric fans 6 can increase the gas flow speed.

[0025] The cleaning mechanism 4 includes a cleaning motor 7 and multiple cleaning rods 8. The cleaning motor 7 is mounted on the central support rod 1 and located between the blower mechanism 3 and the traveling mechanism 2. The multiple cleaning rods 8 are arranged around the cleaning motor 7. The cleaning motor 7 drives the multiple cleaning rods 8 to rotate around the central support rod 1 as the axis. The cleaning motors 7 located at both ends of the central support rod 1 rotate in opposite directions. Therefore, when the cleaning rods 8 at the front end and the cleaning rods 8 at the rear end are cleaning, the frictional resistance generated by them can cancel each other out, preventing the entire blowing device from rotating inside the gas pipeline and improving the cleaning effect of the cleaning rods 8. The top of the cleaning rod 8 abuts against the inner wall of the gas pipeline. The cleaning rod 8 is an elastic telescopic rod. A cleaning brush 16 is fixed to the top of the cleaning rod 8, and the cleaning brush 16 abuts against the inner wall of the gas pipeline.

[0026] The cleaning mechanism 4 also includes a compressed airbag 17, which is fixed to the bottom of the cleaning brush 16. Multiple air holes are provided at the connection between the cleaning brush 16 and the compressed airbag 17, and the air holes are connected to the inside of the compressed airbag 17. A squeezing plate 18 is fixed to the bottom of the compressed airbag 17, and an arc-shaped push block 19 is fixed below the squeezing plate 18. When the cleaning rod 8 moves, the arc-shaped push block 19 can pass over the upper surface of the support leg 12 and squeeze the compressed airbag 17.

[0027] Each time the arc-shaped pusher 19 passes over the support leg 12, the support leg 12 pushes the arc-shaped pusher 19 to gradually move upward, compressing the airbag 17. After the airbag 17 is compressed, it pushes the airflow from the air hole to the surface of the cleaning brush 16, forming an intermittent airflow that blows off the debris and dust adsorbed on the cleaning brush 16, preventing debris from accumulating on the cleaning brush 16. Furthermore, since the cleaning motor 7 is mounted on the central support rod 1 and located between the blower mechanism 3 and the traveling mechanism 2, the debris and dust falling from the cleaning brush 16 will be immediately blown away by the electric fan 6 of the blower mechanism 3, preventing the debris and dust from adhering to the cleaning brush 16 again.

[0028] The slag removal mechanism 5 includes a dust collection box 9 and a dust collection rod 10. The dust collection box 9 is fixed on the central support rod 1. The dust collection box 9 and the dust collection rod 10 are connected by a hose. The opening of the dust collection rod 10 faces the bottom of the gas pipeline.

[0029] The slag removal mechanism 5 also includes a connecting seat 20 and an exhaust fan 21. The connecting seat 20 is fixed to the bottom of the dust collection box 9, and the upper end of the dust collection rod 10 is hinged to the connecting seat 20. The exhaust fan 21 is fixed to the outer wall of the dust collection box 9 and communicates with the interior of the dust collection box 9. A filter layer is also fixed at the connection between the dust collection box 9 and the exhaust fan 21.

[0030] Limiting wheels 22 are also installed on both sides of the opening of the vacuum cleaner rod 10. The limiting wheels 22 are rotatably connected to the side wall of the vacuum cleaner rod 10. The diameter of the limiting wheels 22 is larger than the width of the vacuum cleaner rod 10. When the limiting wheels 22 roll along the inner wall of the gas pipe, the distance between the opening of the vacuum cleaner rod 10 and the inner wall of the gas pipe remains unchanged. At the same time, a certain gap is maintained between the opening of the vacuum cleaner rod 10 and the inner wall of the gas pipe so that the airflow can flow smoothly and thus allow the airflow to smoothly carry debris into the vacuum cleaner rod 10.

[0031] The dust collection box 9 is connected to end plates 23 at both ends. The central support rod 1 passes through the two end plates 23 and is fixedly connected to the end plates 23. The connecting seat 20 is fixed on one of the end plates 23, and the exhaust fan 21 is fixed on the other end plate 23. The bottom of the dust collection box 9 is also provided with a slag removal port 24. The debris collected in the dust collection box 9 can be poured out from the slag removal port 24. That is, after the cleaning mechanism 4 peels the dust and debris from the inner wall of the gas pipe, the blower mechanism 3 blows the lighter dust out of the gas pipe, and the heavier debris is collected by the slag removal mechanism 5 and carried out of the gas pipe, so that the gas pipe can be cleaned in one go.

[0032] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A gas pipeline purging device comprising a central support rod (1), characterized in that: Further comprising a traveling mechanism (2), a blowing mechanism (3), a cleaning mechanism (4) and a slag removing mechanism (5), the traveling mechanism (2) is fixed on the central support rod (1) near both ends, the traveling mechanism (2) is used to drive the central support rod (1) to move along the gas pipeline, the blowing mechanism (3) comprises two electric fans (6) with the same rotating direction, the electric fan (6) is installed on the end of the central support rod (1), the cleaning mechanism (4) comprises a cleaning motor (7) and a plurality of cleaning rods (8), the cleaning motor (7) is installed on the central support rod (1) and is located between the blowing mechanism (3) and the traveling mechanism (2), a plurality of the cleaning rods (8) are arranged around the cleaning motor (7), the cleaning motor (7) is used to drive a plurality of the cleaning rods (8) to rotate around the central support rod (1) as the axis, the top end of the cleaning rod (8) abuts against the inner wall of the gas pipeline, the slag removing mechanism (5) comprises a dust suction box (9) and a dust suction rod (10), the dust suction box (9) is fixed on the central support rod (1), the dust suction box (9) and the dust suction rod (10) are connected through a hose, the opening of the dust suction rod (10) faces the bottom of the gas pipeline. The traveling mechanism (2) comprises a mirror image symmetrically arranged base (11), three supporting legs (12) are fixed around each base (11) at equal intervals; The cleaning rod (8) is an elastic telescopic rod, the top end of the cleaning rod (8) is fixed with a cleaning brush (16), the cleaning brush (16) abuts against the inner wall of the gas pipeline; The cleaning mechanism (4) further comprises a compressed air bag (17), the compressed air bag (17) is fixed at the bottom of the cleaning brush (16), a plurality of air holes are formed at the connection between the cleaning brush (16) and the compressed air bag (17), the air holes are in communication with the inside of the compressed air bag (17), the bottom of the compressed air bag (17) is fixed with a pressing plate (18), the lower side of the pressing plate (18) is fixed with an arc-shaped push block (19), when the cleaning rod (8) moves, the arc-shaped push block (19) can pass through the upper surface of the supporting leg (12) and press the compressed air bag (17).

2. A gas pipe purging apparatus according to claim 1, characterised in that: One end of the supporting leg (12) is hinged to the base (11), the other end of the supporting leg (12) is fixed with an electric wheel (13), the middle part of the supporting leg (12) is hinged with a spring seat (14), a pressing spring (15) is fixed between the spring seat (14) and the base (11), the pressing spring (15) can push the supporting leg (12) to make the electric wheel (13) abut against the inner wall of the gas pipeline.

3. A gas pipeline purging apparatus according to claim 1, characterised in that: The slag removing mechanism (5) further comprises a connecting seat (20) and an air extractor (21), the connecting seat (20) is fixed at the bottom of the dust suction box (9), the upper end of the dust suction rod (10) is hinged to the connecting seat (20), the air extractor (21) is fixed on the outer wall of the dust suction box (9) and is in communication with the inside of the dust suction box (9), a filter layer is further fixed at the connection between the dust suction box (9) and the air extractor (21).

4. A gas pipe purging apparatus according to claim 3, characterised in that: The opening of the dust absorption rod (10) is also provided with a limiting wheel (22), which is rotationally connected with the side wall of the dust absorption rod (10), and the diameter of the limiting wheel (22) is greater than the width of the dust absorption rod (10), so that the distance between the opening of the dust absorption rod (10) and the inner wall of the gas pipeline remains unchanged when the limiting wheel (22) rolls along the inner wall of the gas pipeline.

5. A gas pipe purging apparatus according to claim 3, characterised in that: The dust absorption box (9) is connected with end plates (23) at both ends, the central supporting rod (1) passes through the two end plates (23) and is fixedly connected with the end plates (23), the connecting seat (20) is fixed on one of the end plates (23), the air extractor (21) is fixed on the other end plate (23), and the bottom of the dust absorption box (9) is also provided with a slag removal opening (24).

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