Boiler tube type air pre-heater ash removal device

Abstract

The utility model discloses a boiler tube type air pre-heater deashing device, which relates to the air pre-heater deashing field, and comprises a vehicle seat, a linear driving part, a lifting seat, a driving assembly and N groups of deashing units, the bottom of the vehicle seat is provided with a plurality of wheels, the front end and the rear end of the lifting seat are respectively provided with a guide rail, the bottom ends of the guide rails are arranged on the top of the vehicle seat, and the driving assembly is arranged on the vehicle seat. According to the air pre-heater pipeline cleaning device, the multiple brush heads stretch into multiple pipelines of an air pre-heater at the same time, the multiple rotating shafts and the multiple brush heads are driven to rotate through cooperation of the driving motor, the multiple chain wheels and the chain, and the multiple brush heads clean dust in the multiple pipelines at the same time in the synchronous rotating process; by pushing the saddle to move, the brush head slowly moves to the deep position of the pipeline, so that the inner wall of the pipeline is comprehensively cleaned, and the cleaning efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the field of air preheater ash cleaning, and in particular relates to a boiler tubular air preheater ash cleaning device. Background Art

[0002] The main heat transfer component of the tubular air preheater is a thin-walled steel tube. The tubular air preheater is mostly cubic, with the steel tubes arranged vertically and staggered with each other, and the two ends are welded to the upper and lower tube plates.

[0003] The advantages of tubular air preheaters are good sealing, high heat transfer efficiency, and easy manufacturing and processing. Therefore, they are mostly used in power station boilers and industrial boilers. The disadvantages of tubular air preheaters are that the steel pipes are easily blocked by ash and are not easy to clean, which increases the power consumption of the boiler induced draft fan and even forces the boiler to shut down.

[0004] For example, Chinese patent CN218379453U discloses a boiler horizontal air preheater cleaning tool, comprising a base, a first cylinder is fixedly installed in the middle of the base, the piston rod of the first cylinder extends upward and the end is fixedly connected to a mounting plate, a second cylinder and a guide rail are fixedly installed on the mounting plate, a slider is slidably connected to the guide rail, the slider is fixedly connected to the piston rod of the second cylinder, a tube body is fixedly connected to the slider, an air outlet is provided on the tube wall of the tube body at one end away from the second cylinder, and a pressure hose is connected to the end of the tube body close to the second cylinder.

[0005] This tool can only blow away the dust from the inner wall of one pipe at a time. Since there are many pipes in the tubular air preheater, the cleaning efficiency is low.

[0006] Therefore, we propose a boiler tubular air preheater cleaning device to solve the above problems. Utility Model Content

[0007] Aiming at the problem that the tool can only clean the inner wall of one pipe by blowing dust at a time and the cleaning efficiency is low due to the large number of pipes in the tubular air preheater, the utility model provides a boiler tubular air preheater dust cleaning device.

[0008] The utility model solves the technical problem by adopting a solution: a boiler tubular air preheater ash cleaning device, comprising a vehicle seat, a linear drive component, a lifting seat, a drive assembly and N groups of ash removal units, wherein a plurality of wheels are installed at the bottom of the vehicle seat.

[0009] The front and rear ends of the lifting seat are respectively provided with guide rails, the bottom ends of the guide rails are installed on the top of the vehicle seat, and a U-shaped card is installed on the lifting seat;

[0010] The linear drive component is installed between the vehicle seat and the U-shaped card, and can drive the lifting seat to move up and down along the guide rail;

[0011] N groups of dust removal units are arranged on the lifting seat in sequence from front to back, and the dust removal unit includes a guide tube and a rotating shaft arranged in the guide tube, the tail end of the guide tube is fixedly installed on the lifting seat, and a bearing 1 is installed at the front end thereof;

[0012] The front end of the rotating shaft passes through the first bearing and is equipped with a brush head, and the rear end thereof is provided with a second bearing, which is installed on the lifting seat;

[0013] The driving assembly is installed on the lifting seat and can drive the rotating shaft and the brush head to rotate.

[0014] Preferably, the top view of the seat is convex-shaped, and two handles are installed on the left side of the seat.

[0015] Preferably, the linear drive component is a hydraulic rod or an electric push rod.

[0016] Preferably, the driving assembly includes a driving motor and N+1 sprockets, the driving motor is mounted on a lifting seat, the N+1 sprockets are respectively mounted on an output shaft of the driving motor and N rotating shafts, and the N+1 sprockets are mounted with the same chain.

[0017] Preferably, a plurality of dust suction holes are formed around one end of the conduit close to the brush head.

[0018] Preferably, it also includes a dust suction pipe and a vacuum cleaner installed on the vehicle seat, the dust suction end of the vacuum cleaner is connected to the dust suction pipe, N dust suction branch pipes are installed on the top of the dust suction pipe, and the upper end of the dust suction branch pipe is connected to the tail end of the conduit.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model extends multiple brush heads into multiple air preheater pipes at the same time, and drives multiple shafts and multiple brush heads to rotate through the cooperation of a driving motor, multiple sprockets and chains. The multiple brush heads clean the dust in the multiple pipes simultaneously during the synchronous rotation process. By pushing the seat to move, the brush head slowly moves to the deep of the pipe, thereby comprehensively cleaning the inner wall of the pipe with high cleaning efficiency.

[0021] 2. The utility model starts the vacuum cleaner, and the dust swept by the brush head is sucked from the dust suction hole and then sucked into the vacuum cleaner through the guide tube, the dust suction branch pipe and the dust suction main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0023] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model.

[0024] In the figure: 1 a vehicle seat, 2 wheels, 3 a lifting seat, 41 a guide tube, 42 a dust suction hole, 43 a brush head, 44 a rotating shaft, 45 a sprocket, 46 a driving motor, 47 a chain, 51 a guide rail, 52 a hydraulic rod, 53 a U-shaped card, 61 a dust suction branch pipe, 62 a dust suction main pipe, 63 a vacuum cleaner, and 7 a handle. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-2 The utility model provides a technical solution for a boiler tubular air preheater ash cleaning device:

[0027] Embodiment 1:

[0028] according to Figure 1 and Figure 2 As shown, it includes a seat 1, a linear drive component, a lifting seat 3, a drive assembly and N groups of dust removal units. A plurality of wheels 2 are installed at the bottom of the seat 1. There are three wheels 2, which are arranged in a triangle. The top view of the seat 1 is a convex shape. Two handles 7 are installed on the left side of the seat 1, and the handles 7 are used to push the seat 1 to move.

[0029] The front and rear ends of the lifting seat 3 are respectively provided with guide rails 51, the bottom ends of the guide rails 51 are installed on the top of the vehicle seat 1, and the lifting seat 3 is installed with U-shaped clips 53. In this embodiment, there are two U-shaped clips 53.

[0030] In this embodiment, the linear driving component is a hydraulic rod 52. Of course, an electric push rod can also be used. There are two linear driving components. The hydraulic rod 52 is installed between the vehicle seat 1 and the U-shaped card 53. By controlling the extension and retraction of the hydraulic rod 52, the lifting seat 3 is driven to move up and down along the guide rail 51.

[0031] N groups of dust removal units are arranged on the lifting seat 3 in sequence from front to back. The dust removal units include a guide tube 41 and a rotating shaft 44 arranged in the guide tube 41. The tail end of the guide tube 41 is fixedly installed on the lifting seat 3, and a bearing 1 is installed at its front end.

[0032] The front end of the rotating shaft 44 passes through the bearing 1 and is installed with the brush head 43, and the rear end is fitted with the bearing 2, which is installed on the lifting seat 3. The rotating shaft 44 is supported by the bearings 1 and 2 to ensure the stability of the rotating shaft 44 and the brush head 43 during rotation.

[0033] The driving assembly includes a driving motor 46 and N+1 sprockets 45. The driving motor 46 is installed on the lifting seat 3. The N+1 sprockets 45 are respectively mounted on the output shaft of the driving motor 46 and the N rotating shafts 44. The N+1 sprockets 45 are mounted with the same chain 47. The driving motor 46, multiple sprockets 45 and chains 47 cooperate to drive the multiple rotating shafts 44 and multiple brush heads 43 to rotate. The multiple brush heads 43 clean the dust in multiple pipes at the same time during the synchronous rotation process. By pushing the vehicle seat 1 to move, the brush head 43 slowly moves to the deep part of the pipe, thereby comprehensively cleaning the inner wall of the pipe with high cleaning efficiency.

[0034] A plurality of dust suction holes 42 are formed around one end of the duct 41 near the brush head 43, and the duct also includes a dust suction main pipe 62 and a vacuum cleaner 63 installed on the vehicle seat 1. The dust suction end of the vacuum cleaner 63 is connected to the dust suction main pipe 62. N dust suction branch pipes 61 are installed on the top of the dust suction main pipe 62. The upper end of the dust suction branch pipe 61 is connected to the tail end of the duct 41. By starting the vacuum cleaner 63, the dust swept by the brush head 43 is sucked into the dust suction hole 42 and is sucked into the vacuum cleaner 63 through the duct 41, the dust suction branch pipe 61 and the dust suction main pipe 62.

[0035] When used specifically, the utility model is a boiler tubular air preheater ash cleaning device. First, the device is pushed to one side of the tubular air preheater, and then the extension of the hydraulic rod 52 is controlled to move the lifting seat 3 upward, so that the multiple brush heads 43 correspond to the multiple pipes respectively, and then the device is continued to be pushed to extend the multiple brush heads 43 into the pipes of the multiple air preheaters at the same time;

[0036] The driving motor 46 and the dust collector 63 are started, and the driving motor 46, the plurality of sprockets 45 and the chain 47 cooperate to drive the plurality of rotating shafts 44 and the plurality of brush heads 43 to rotate. The plurality of brush heads 43 respectively clean the dust in the plurality of pipes at the same time during the synchronous rotation process. At the same time, the dust swept by the brush heads 43 is sucked into the dust collector 63 through the dust suction hole 42 and the dust suction branch pipe 61 and the dust suction main pipe 62.

[0037] Finally, by pushing the vehicle seat 1 to move, the brush head 43 slowly moves to the deep part of the pipeline to fully clean the inner wall of the pipeline.

Claims

1. A boiler tubular air preheater ash cleaning device, comprising a vehicle seat, a linear drive component, a lifting seat, a drive assembly and N groups of ash removal units, wherein a plurality of wheels are installed at the bottom of the vehicle seat, characterized in that: The front and rear ends of the lifting seat are respectively provided with guide rails, the bottom ends of the guide rails are installed on the top of the vehicle seat, and a U-shaped card is installed on the lifting seat; The linear drive component is installed between the vehicle seat and the U-shaped card, and can drive the lifting seat to move up and down along the guide rail; N groups of dust removal units are arranged on the lifting seat in sequence from front to back, and the dust removal unit includes a guide tube and a rotating shaft arranged in the guide tube, the tail end of the guide tube is fixedly installed on the lifting seat, and a bearing 1 is installed at the front end thereof; The front end of the rotating shaft passes through the first bearing and is equipped with a brush head, and the rear end thereof is provided with a second bearing, which is installed on the lifting seat; The driving assembly is installed on the lifting seat and can drive the rotating shaft and the brush head to rotate.

2. The boiler tubular air preheater ash cleaning device according to claim 1 is characterized in that: The top view surface of the vehicle seat is in a convex shape, and two handles are installed on the left side of the vehicle seat.

3. The boiler tubular air preheater ash cleaning device according to claim 1 is characterized in that: The linear drive component is a hydraulic rod or an electric push rod.

4. The boiler tubular air preheater ash cleaning device according to claim 1 is characterized in that: The driving assembly includes a driving motor and N+1 sprockets. The driving motor is installed on a lifting seat. The N+1 sprockets are respectively mounted on an output shaft of the driving motor and N rotating shafts. The N+1 sprockets are mounted with the same chain.

5. The boiler tubular air preheater ash cleaning device according to claim 1, characterized in that: A plurality of dust suction holes are arranged around one end of the conduit close to the brush head.

6. The boiler tubular air preheater ash cleaning device according to claim 5, characterized in that: It also includes a dust suction pipe and a vacuum cleaner installed on the vehicle seat. The dust suction end of the vacuum cleaner is connected to the dust suction pipe. N dust suction branch pipes are installed on the top of the dust suction pipe. The upper ends of the dust suction branch pipes are connected to the tail end of the guide tube.

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