Cleaning device for tubular air pre-heater

Abstract

A cleaning device for a tubular air pre-heater comprises an end sealing part, a through pipe part, a spraying mechanism, a fixing part and a rope pulling device. The end sealing part is arranged at the end part of the through pipe part; the spraying mechanism is arranged on the through pipe part; the through pipe part penetrates through the fixed part; and the rope pulling device is arranged on the fixed part and is connected with the through pipe part. According to the utility model, the cleaning efficiency of the internal pipeline of the tubular air pre-heater is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning device, especially a device capable of cleaning a tubular air preheater, and belongs to the technical field of air preheater cleaning equipment. BACKGROUND

[0002] In the industrial production process, the air preheater is an important preheating equipment, and its performance directly affects the production efficiency. However, due to long-term operation, dust and impurities are easily accumulated in the internal pipeline of the air preheater, gradually forming scale, which affects the heat exchange effect and operating efficiency. Therefore, cleaning the internal pipeline of the air preheater is an important maintenance measure. At present, the internal cleaning of the air preheater is completed by manual work. The worker holds a long water gun and inserts it into each pipeline to flush and clean the accumulated impurities and dust on the inner wall. Due to the large number of pipelines, the labor intensity of the worker is high. In addition, there is water in the cleaned pipeline, which cannot be put into use immediately, which affects the standby time of the air preheater and the production progress. Therefore, a device capable of efficiently cleaning the pipeline of the air preheater is needed. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art and providing a cleaning device for a tubular air preheater, which can not only reduce the labor intensity of the worker, but also improve the cleaning efficiency of the internal pipeline of the air preheater.

[0004] The problem is solved by the following technical scheme:

[0005] A cleaning device for a tubular air preheater, comprising an end sealing part, a pipe passing part, a spraying mechanism, a fixing part and a pull rope device. The end sealing part is arranged at the end of the pipe passing part. The spraying mechanism is arranged on the pipe passing part. The pipe passing part penetrates the fixing part. The pull rope device is arranged on the fixing part and connected with the pipe passing part.

[0006] The above-mentioned cleaning device for a tubular air preheater, the pipe passing part comprises an air pipe and a water pipe. The side walls of the air pipe and the water pipe are connected, and the axis of the air pipe is parallel to the axis of the water pipe. The first port on the same side of the air pipe and the water pipe is a through hole, the second port of the air pipe is a through hole, and the second port of the water pipe is a closed port. The first end of the air pipe is connected with a high-pressure gas source through a long hose, and the water pipe is connected with a high-pressure water source through a long hose.

[0007] The above-mentioned cleaning device for a tubular air preheater, the fixing part comprises a square plate and a clamping mechanism. The square plate is provided with a clamping mechanism at each corner. The center of the square plate is provided with a hole, and the contour of the hole is consistent with the cross section of the combination of the air pipe and the water pipe. The combination of the air pipe and the water pipe penetrates the center hole of the square plate.

[0008] The cleaning device for the tubular air preheater, the clamping mechanism comprises an electric cylinder, a support plate, a sliding plate and a clamping plate; the electric cylinder is arranged at the corner of the end face of the square plate away from the end seal part; the corner of the end face of the square plate close to the end seal part is provided with a sliding rail along the diagonal line, and the sliding plate is slidingly arranged on the sliding rail along the diagonal line; the end of the piston rod of the electric cylinder is connected with the end of the sliding plate through the support plate; the end of the sliding plate close to the center of the square plate is provided with the clamping plate, and the center line of the clamping plate is perpendicular to the plane of the square plate.

[0009] The cleaning device for the tubular air preheater, the end seal part comprises a cylindrical hollow rubber plug and a hollow disc; the second port of the air pipe is communicated with the end of the cylindrical hollow rubber plug; the outer diameter of the cylindrical hollow rubber plug is smaller than the inner diameter of the inner pipeline of the tubular air preheater; the end of the cylindrical hollow rubber plug away from the air pipe is communicated with the hollow disc; the axis of the cylindrical hollow rubber plug is coincided with the axis of the hollow disc; a circle of air spray heads are arranged on the circumferential side wall of the hollow disc.

[0010] The cleaning device for the tubular air preheater, the spraying mechanism comprises a hollow ring; the hollow ring is arranged on the outer wall of the water pipe and the air pipe combination body through a support, and the water pipe and the air pipe combination body pass through the hollow ring; a circle of water spray heads are arranged on the circumferential outer wall of the hollow ring; the axis of the hollow ring is coincided with the axis of the cylindrical hollow rubber plug; the hollow ring is communicated with the water pipe through a connecting pipe; the hollow ring is located at the second end of the water pipe and the air pipe combination body.

[0011] The cleaning device for the tubular air preheater, the pulling rope device is arranged on the side wall of the square plate; the outer wall of the water pipe and the air pipe combination body is provided with a support plate, and the support plate is located on the side of the hollow ring close to the square plate; the end of the pulling rope of the pulling rope device is connected with the support plate.

[0012] The fixing part can fix the end of the device to the end of the tubular air preheater pipeline to be cleaned, then the spraying mechanism and the end seal part are driven by the pulling rope device to walk in the pipeline to be cleaned, and the pipeline to be cleaned is cleaned during walking, so that the inner wall of the pipeline to be cleaned is efficiently cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is a local enlarged structure schematic diagram of the utility model A;

[0015] Figure 3 It is a local enlarged structure schematic diagram of the utility model B.

[0016] List of reference numerals in the figure: 1. rope puller, 2. air pipe, 3. water pipe, 4. square plate, 5. electric cylinder, 6. sliding plate, 7. clamping plate, 8. cylindrical hollow rubber plug, 9. hollow disc, 10. hollow ring. DETAILED DESCRIPTION

[0017] Referring to Figure 1 , 2 and Figure 3 , the utility model discloses end seal portion, pipe portion, spray mechanism, fixed portion and rope puller 1, end seal portion sets up at the end of pipe portion, and end seal portion is used for discharging cleaning water and blowing dry water and is left when cleaning, spray mechanism sets up on pipe portion, and spray mechanism is used for spraying water flow on the inner wall of the pipe to be cleaned to wash the impurities and dust accumulated on the inner wall of the pipe to be cleaned, pipe portion passes the fixed portion, and fixed portion is used for fixing the device on the end of the pipe to be cleaned, and then end seal portion, pipe portion, spray mechanism move along the pipe to be cleaned under the traction of rope puller 1, rope puller 1 sets up on fixed portion, and it is connected with pipe portion.

[0018] Pipe portion includes air pipe 2 and water pipe 3, the lateral wall of air pipe 2 and water pipe 3 is connected, and the axis of air pipe 2 is parallel with the axis of water pipe 3, the first port of the same side of air pipe 2 and water pipe 3 is through -hole, the second port of air pipe 2 is through -hole, and the second port of water pipe 3 is closed, the first end of air pipe 2 is communicated with high pressure gas source through long hose, and water pipe 3 is communicated with high pressure water source through long hose, air pipe 2 injects high pressure gas into cylindrical hollow rubber plug 8, and water pipe 3 injects high pressure water into hollow ring 10, so that hollow ring 10 can spray high pressure water flow to the periphery, that is, the inner wall of the pipe to be cleaned.

[0019] Fixed portion includes square plate 4 and clamping mechanism, four corners of square plate 4 are all provided with clamping mechanism, four clamping mechanisms cooperate to relatively fix the end of tubular air preheater pipe to be cleaned, ensure that the device can reliably operate without leaving the pipe to be cleaned when cleaning the pipe to be cleaned, the center of square plate 4 is provided with hole, and the contour of hole is consistent with the section of air pipe 2 and water pipe 3 combination, the combination of air pipe 2 and water pipe 3 passes through the center hole of square plate 4, air pipe 2 and water pipe 3 are inserted at the center hole of square plate 4, square plate 4 is stationary relative to the pipe to be cleaned, and air pipe 2 and water pipe 3 move in the pipe to be cleaned, then cooperate end seal portion and spray mechanism to clean the inner wall of the pipe to be cleaned.

[0020] The clamping mechanism comprises an electric cylinder 5, a support plate, a sliding plate 6 and a clamping plate 7; the electric cylinder 5 is arranged at the corner of the end face of the square plate 4 away from the end sealing part; the corner of the end face of the square plate 4 close to the end sealing part is provided with a sliding rail along the diagonal direction, and the sliding plate 6 is slidingly arranged on the sliding rail along the diagonal direction; the end of the piston rod of the electric cylinder 5 is connected with the end of the sliding plate 6 through the support plate; the sliding plate 6 is provided with the clamping plate 7 at one end close to the center of the square plate 4, and the center line of the clamping plate 7 is perpendicular to the plane of the square plate 4; the electric cylinder 5 drives the sliding plate 6 to slide through the support plate, and then drives the clamping plate 7 to move synchronously; when the clamping plates 7 at the four corners move synchronously outward, the end of the inner wall of the pipeline to be cleaned is clamped, and then the relative fixing is realized.

[0021] The end sealing part comprises a cylindrical hollow rubber plug 8 and a hollow disc 9; the second port of the air pipe 2 is in communication with the end of the cylindrical hollow rubber plug 8; the outer diameter of the cylindrical hollow rubber plug 8 is smaller than the inner diameter of the inner pipeline of the tubular air preheater; this enables the cylindrical hollow rubber plug 8 to smoothly enter the inner pipeline of the tubular air preheater, and when high-pressure gas is injected into the cylindrical hollow rubber plug 8, the cylindrical hollow rubber plug 8 expands to a certain extent to block the inner pipeline of the tubular air preheater; the end of the cylindrical hollow rubber plug 8 away from the air pipe 2 is in communication with the hollow disc 9; the axis of the cylindrical hollow rubber plug 8 coincides with the axis of the hollow disc 9; a circle of air nozzles is arranged on the circumferential side wall of the hollow disc 9; after the high-pressure gas flows through the cylindrical hollow rubber plug 8, the high-pressure gas flows into the hollow disc 9, and finally is sprayed from the air nozzles to the surrounding, so as to dry the residual water on the inner wall of the pipeline.

[0022] The spraying mechanism comprises a hollow ring 10; the hollow ring 10 is arranged on the outer wall of the combination of the water pipe 3 and the air pipe 2 through a support, and the combination of the water pipe 3 and the air pipe 2 passes through the hollow ring 10; a circle of water nozzles is arranged on the circumferential outer wall of the hollow ring 10; the axis of the hollow ring 10 coincides with the axis of the cylindrical hollow rubber plug 8; the hollow ring 10 is in communication with the water pipe 3 through a connecting pipe; the hollow ring 10 is located at the second end of the combination of the water pipe 3 and the air pipe 2; high-pressure water is injected into the hollow ring 10 through the water pipe 2, and the high-pressure water is sprayed to the inner wall of the pipeline to be cleaned through the water nozzles around the hollow ring 10 to wash the pipeline.

[0023] The pull rope device 1 is arranged on the side wall of the square plate 4; the outer wall of the combination of the water pipe 3 and the air pipe 2 is provided with a support plate, and the support plate is located at the side of the hollow ring 10 close to the square plate 4; the end of the pull rope of the pull rope device 1 is connected with the support plate; the pull rope device 1 can pull the combination of the water pipe 3 and the air pipe 2 to move away from the pipeline, and then drive the end sealing part and the spraying mechanism to move along the axis direction of the pipeline, and gradually approach the outlet of the pipeline.

[0024] Principle: before using, push the water pipe 3 and the air pipe 2 combination, make the cylindrical hollow rubber plug 8 principle square plate 4, then the end seal part spray mechanism extends into the end of the pipe to be cleaned, and four clamping plates 7 also extend into the end of the pipe, then start each electric cylinder 5 to make four clamping plates 7 away from each other and clamp the port of the pipe, then connect the high pressure gas source and the high pressure water source, make the hollow ring 10 spray high pressure water to all around, and the cylindrical hollow rubber plug 8 slightly expands to block the pipe to a certain extent, and the hollow disc 9 sprays high pressure gas to all around; Then start the pull rope device 1, make the end seal part spray mechanism move towards the outlet of the pipe to be cleaned, in this process, the hollow ring 10 is washed in the moving process to the inner wall of the pipe along the way; The slightly expanded cylindrical hollow rubber plug 8 pushes the accumulated water in the spray out of the pipe, and the last hollow disc 9 blows the residual accumulated water, until moving to the end; Then the electric cylinder 5 resets, removes the device, then moves the device to the next pipe, repeats the above action, so on and so forth until all the pipes are cleaned.

Claims

1. A cleaning device for a tubular air preheater, characterized in that: It includes an end-sealing part, a pipe section, a spraying mechanism, a fixing part, and a rope puller (1); the end-sealing part is located at the end of the pipe section; the spraying mechanism is located on the pipe section; the fixing part passes through the pipe section; the rope puller (1) is located on the fixing part and is connected to the pipe section.

2. The cleaning device for a tubular air preheater according to claim 1, characterized in that: The pipe section includes an air pipe (2) and a water pipe (3); the side walls of the air pipe (2) and the water pipe (3) are connected, and the axis of the air pipe (2) is parallel to the axis of the water pipe (3); the first port on the same side of the air pipe (2) and the water pipe (3) is a through hole, the second port of the air pipe (2) is a through hole, and the second port of the water pipe (3) is a closed port; the first end of the air pipe (2) is connected to a high-pressure air source through a long flexible tube, and the water pipe (3) is connected to a high-pressure water source through a long flexible tube.

3. The cleaning device for a tubular air preheater according to claim 2, characterized in that: The fixing part includes a square plate (4) and a clamping mechanism; the four corners of the square plate (4) are provided with clamping mechanisms; the center of the square plate (4) is provided with a hole, and the outline of the hole is consistent with the cross section of the combination of the air pipe (2) and the water pipe (3); the combination of the air pipe (2) and the water pipe (3) passes through the center hole of the square plate (4).

4. The cleaning device for a tubular air preheater according to claim 3, characterized in that: The clamping mechanism includes an electric cylinder (5), a support plate, a sliding plate (6), and a clamping plate (7); the electric cylinder (5) is located at the corner of the end face of the square plate (4) away from the end seal portion; a slide rail is provided along the diagonal direction at the corner of the end face of the square plate (4) near the end seal portion, and the sliding plate (6) is slidably mounted on the diagonal slide rail; the end of the piston rod of the electric cylinder (5) is connected to the end of the sliding plate (6) through the support plate; a clamping plate (7) is provided at one end of the sliding plate (6) near the center of the square plate (4), and the center line of the clamping plate (7) is perpendicular to the plane of the square plate (4).

5. The cleaning device for a tubular air preheater according to claim 4, characterized in that: The end-sealing part includes a cylindrical hollow rubber plug (8) and a hollow disc (9); the second port of the vent pipe (2) is connected to the end of the cylindrical hollow rubber plug (8); the outer diameter of the cylindrical hollow rubber plug (8) is smaller than the inner diameter of the pipe inside the tubular air preheater; the end of the cylindrical hollow rubber plug (8) away from the vent pipe (2) is connected to the hollow disc (9); the axis of the cylindrical hollow rubber plug (8) coincides with the axis of the hollow disc (9); a ring of air nozzles is provided on the circumferential sidewall of the hollow disc (9).

6. The cleaning device for a tubular air preheater according to claim 5, characterized in that: The spraying mechanism includes a hollow ring (10); the hollow ring (10) is mounted on the outer wall of the water pipe (3) and air pipe (2) assembly by a bracket, and the water pipe (3) and air pipe (2) assembly passes through the hollow ring (10); a ring of water nozzles is provided on the outer circumference of the hollow ring (10); the axis of the hollow ring (10) coincides with the axis of the cylindrical hollow rubber plug (8); the hollow ring (10) is connected to the water pipe (3) through a connecting pipe; the hollow ring (10) is located at the second end of the water pipe (3) and air pipe (2) assembly.

7. The cleaning device for a tubular air preheater according to claim 6, characterized in that: The rope puller (1) is set on the side wall of the square plate (4); a support plate is set on the outer wall of the water pipe (3) and air pipe (2) assembly, and the support plate is located on the side of the hollow ring (10) close to the square plate (4); the rope end of the rope puller (1) is connected to the support plate.

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