Dimension-adjustable and automatic-cleaning flow guide device

Abstract

The utility model relates to a size-adjustable and automatic-cleaning flow guide device which comprises a flow guide pipe and a filter screen and further comprises a cleaning assembly arranged at one end of the flow guide pipe, and the cleaning assembly comprises a cleaning piece and a driver for driving the cleaning piece to move back and forth along the surface of the filter screen. The flow guide cover assembly is arranged at the end, opposite to the cleaning assembly, of the flow guide pipe, the flow guide cover assembly comprises a first movable plate, a second movable plate and a driving mechanism, and the first movable plate and the second movable plate are rotationally arranged on the two opposite sides of a pipe opening of the flow guide pipe correspondingly; the first movable plate and the second movable plate form a sealing plate for sealing the flow guide pipe, and the driving mechanism drives the first movable plate and the second movable plate to rotate; large-particle impurities on the filter screen of the flow guide pipe can be automatically cleaned, the filter screen is prevented from being blocked, the size of the air outlet of the flow guide pipe can be flexibly and accurately adjusted, and accurate flow adjustment of the flow guide pipe is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas desulfurization technical field especially is a kind of adjustable size and automatic cleaning's flow guide device. BACKGROUND

[0002] In order to control increasingly severe environmental situation, improve atmospheric air quality, all places require that coal-fired flue gas pollutant emission standard reaches the basic emission requirement of gas turbine unit, among the current numerous coal-fired flue gas desulfurization methods, using desulfurization tower to carry out desulfurization to coal-fired flue gas is one of the most common methods, and in order to ensure that coal-fired flue gas evenly enters desulfurization tower, flow guide device needs to be installed at the gas inlet of desulfurization tower.

[0003] A patent with the patent name of a kind of flue gas flow guide device of desulfurization tower discloses a kind of flue gas flow guide device of desulfurization tower, including pipe body, the top end of the pipe body is connected with desulfurization tower gas inlet, the inside of the pipe body is equipped with gas collecting hood and gas conveying pipe;Coal-fired flue gas is diffused to flow guide pipe after gas collecting hood and gas conveying, and after evenly diffusing from the through-hole of flow guide pipe, ensure that coal-fired flue gas enters desulfurization tower evenly, simultaneously, to make coal-fired flue gas and material mix more evenly, improve desulfurization effect, the patent also sets up filter screen in the inside of filter plate to intercept large particle impurities in coal-fired flue gas, avoid large particle impurities into desulfurization tower after. However, the filter screen of flow guide device is gradually blocked by large particle impurities in the process of use, and the flow guide efficiency of flow guide device gradually decreases. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model lies in overcoming the problems that large particle impurities can block the filter screen of flow guide pipe in prior art, leading to gradually decreasing flow guide efficiency, and the flow of flow guide pipe is difficult to flexibly and accurately adjust, and further, a kind of adjustable size and automatic cleaning's flow guide device can automatically clean large particle impurities of filter screen of flow guide pipe, avoid filter screen from being blocked, and can flexibly and accurately adjust the size of gas outlet of flow guide pipe, realize accurate flow adjustment of flow guide pipe.

[0005] To solve the above technical problems, the utility model provides a kind of adjustable size and automatic cleaning's flow guide device, it includes flow guide pipe and filter screen, the filter screen is set to one end of the flow guide pipe, still includes,

[0006] Cleaning assembly is set to one end of the flow guide pipe, and the cleaning assembly includes cleaning piece and driver that drives the cleaning piece reciprocating movement along the surface of the filter screen, and the cleaning piece cleans the filter screen;

[0007] A fairing assembly is arranged at one end of the fairing pipe relative to the cleaning assembly, the fairing assembly comprising a first movable plate, a second movable plate and a driving mechanism, the first movable plate and the second movable plate are respectively arranged at two sides of the fairing pipe orifice, when the first movable plate and the second movable plate are abutted, the first movable plate and the second movable plate form a closed plate for closing the fairing pipe, wherein the driving mechanism drives the first movable plate and the second movable plate to rotate.

[0008] In an embodiment of the utility model, the driving mechanism comprises a screw rod, a threaded slider threadedly connected with the screw rod, and a telescopic rod connected with the threaded slider, wherein the first movable plate and the second movable plate are respectively connected with the telescopic rod.

[0009] In an embodiment of the utility model, the screw rod is arranged as a reverse screw rod, the reverse screw rod is arranged perpendicularly to the fairing pipe, two threaded segments of the reverse screw rod are respectively threadedly connected with two threaded sliders, and the first movable plate and the second movable plate are respectively connected with the two threaded sliders through the telescopic rod.

[0010] In an embodiment of the utility model, an end of the screw rod is provided with a rotating disc.

[0011] In an embodiment of the utility model, the cleaning assembly comprises a mounting seat, a threaded rod and a sliding rod parallel to the threaded rod, one end of the mounting seat is threadedly connected with the threaded rod through a threaded hole, the other end of the mounting seat is slidingly connected with the sliding rod through a through hole, the cleaning piece is arranged in the mounting seat, and the driver drives the threaded rod to rotate.

[0012] In an embodiment of the utility model, the fairing pipe is arranged as a rectangular fairing pipe, and the first movable plate and the second movable plate are respectively connected to two opposite parallel sides of the rectangular fairing pipe orifice through hinges.

[0013] In an embodiment of the utility model, a rectangular inner hole of the rectangular fairing pipe is matched with the closed plate.

[0014] In an embodiment of the utility model, the utility model further comprises a flow guide assembly provided with an impeller and a motor, the impeller is arranged inside the fairing pipe, and the motor drives the impeller to rotate.

[0015] In an embodiment of the utility model, the impeller comprises a first impeller and a second impeller, the first impeller and the second impeller are distributed along the length direction of the fairing pipe, and the first impeller and the second impeller are driven through a belt.

[0016] In one embodiment of the utility model, the cleaning piece includes a cleaning brush, a jet head and a water gun.

[0017] In one embodiment of the utility model, the rotating shafts of the first and second impellers are rotationally connected to the flow guide pipe, and the end portions of the rotating shafts extend out of the flow guide pipe.

[0018] In one embodiment of the utility model, the motor is arranged on one side of the flow guide pipe, and the motor drives the rotating shaft of the first impeller to rotate.

[0019] In one embodiment of the utility model, the rotating shaft of the first impeller is coaxially connected to a first belt disc, the rotating shaft of the second impeller is coaxially connected to a second belt disc, the first and second belt discs are located outside the flow guide pipe, and the first and second belt discs are driven by a belt.

[0020] In one embodiment of the utility model, four limit sleeves are arranged at the four corners of the pipe opening of the flow guide pipe, the two ends of the slide rod are fixedly connected to two limit sleeves respectively, and the two ends of the threaded rod are rotationally connected to the two limit sleeves respectively.

[0021] In one embodiment of the utility model, the edges of the first and second movable plates are provided with elastic sealing strips.

[0022] The above technical solution of the utility model has the following beneficial effects compared with the prior art.

[0023] The adjustable size and automatic cleaning flow guide device has the following advantages: the cleaning piece is arranged at the filter screen of the flow guide pipe to automatically clean the large-particle impurities on the filter screen; the driving device drives the cleaning piece to reciprocally move on the surface of the filter screen to achieve full coverage of the cleaning piece on the filter screen, thereby avoiding the filter screen from being blocked; the first and second movable plates are arranged at the pipe opening of the flow guide pipe, the diameter of the air outlet of the flow guide pipe is changed by the opening and closing of the first and second movable plates, thereby controlling the flow of the flow guide pipe; the driving mechanism is used to open and close the first and second movable plates, the opening and closing size of the first and second movable plates can be accurately controlled, the flow of the flow guide pipe can be accurately adjusted, and the working intensity is reduced; when the first and second movable plates are rotated to the butt joint state, the closed plate formed by the first and second movable plates can intercept the flow guide pipe. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, in which

[0025] Figure 1 Structure schematic view of the size-adjustable and automatic cleaning flow guide device shown in the preferred embodiment of the present application;

[0026] Figure 2 For Figure 1 Another structure schematic view of the size-adjustable and automatic cleaning flow guide device shown in the preferred embodiment of the present application;

[0027] Figure 3 For Figure 1 Structure schematic view of the flow cover assembly and the flow guide pipe shown in the preferred embodiment of the present application;

[0028] Figure 4 For Figure 1 Structure schematic view of the cleaning assembly and the flow guide pipe shown in the preferred embodiment of the present application;

[0029] Figure 5 For Figure 1 Structure schematic view of the flow guide assembly and the flow guide pipe shown in the preferred embodiment of the present application.

[0030] The description of the reference signs in the drawings is as follows: 1, flow guide pipe; 2, flow cover assembly; 21, hinge; 22, first movable plate; 23, second telescopic rod; 24, first threaded sliding block; 25, rotating disc; 26, reverse screw rod; 27, second movable plate; 28, first telescopic rod; 29, second threaded sliding block; 3, flow guide assembly; 31, motor; 32, first belt disc; 33, first impeller; 34, second belt disc; 35, second impeller; 4, cleaning assembly; 41, filter screen; 42, limiting sleeve; 43, limiting sleeve; 44, driver; 45, threaded rod; 46, first movable sleeve; 47, sliding rod; 48, second movable sleeve; 49, cleaning member. DETAILED DESCRIPTION

[0031] The present application will be further described in conjunction with the drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it, but the embodiments are not intended to limit the present application.

[0032] Referring to Figure 1 and Figure 3 In one embodiment of the present application, a size-adjustable and automatic cleaning flow guide device is disclosed, which comprises a flow guide pipe 1 and a filter screen 41, both ends of the flow guide pipe 1 are provided as an air inlet and an air outlet, coal-fired flue gas enters the flow guide pipe 1 from the air inlet and enters a desulfurization tower from the air outlet, the filter screen 41 is arranged at the air inlet of the flow guide pipe 1 and is used for filtering large-particle impurities in the coal-fired flue gas; the flow guide device further comprises,

[0033] A cleaning assembly 4 is arranged at the air inlet of the flow guide pipe 1, the cleaning assembly 4 comprises a cleaning piece 49 and a driver 44 for driving the cleaning piece 49 to reciprocate along the surface of the filter screen 41, the cleaning piece 49 is located outside the flow guide for cleaning the filter screen 41, and the driver 44 is preferably a servo motor;

[0034] A flow guide cover assembly 2 is arranged at one end of the flow guide pipe 1 relative to the cleaning assembly 4 for adjusting the caliber of the air outlet, specifically, the flow guide cover assembly 2 comprises a first movable plate 22, a second movable plate 27 and a driving mechanism, the first movable plate 22 and the second movable plate 27 are both rotationally arranged on the two sides of the pipe opening of the flow guide pipe 1, and the rotation axes of the first movable plate 22 and the second movable plate 27 are both perpendicular to the axial direction of the flow guide pipe 1, therefore, the first movable plate 22 and the second movable plate 27 can rotate towards the inside of the flow guide pipe 1, when the first movable plate 22 and the second movable plate 27 are parallel to each other, the flow rate of the flow guide pipe 1 is the largest; when the first movable plate 22 and the second movable plate 27 gradually rotate towards the inside, the gap between the first movable plate 22 and the second movable plate 27 gradually decreases, until the end of the first movable plate 22 and the end of the second movable plate 27 are butted; when the first movable plate 22 and the second movable plate 27 are butted, the first movable plate 22 and the second movable plate 27 form a closed plate for closing the flow guide pipe 1, at this time, the flow rate of the flow guide pipe 1 is the smallest, wherein the driving mechanism is used for driving the first movable plate 22 and the second movable plate 27 to rotate, so as to realize the automatic adjustment of the caliber of the air outlet;

[0035] Further, when the first movable plate 22 and the second movable plate 27 are butted, the first movable plate 22 and the second movable plate 27 are both located on a plane.

[0036] Further, in an embodiment of the utility model, the driving mechanism includes two screw rods, threaded blocks connected with the screw rods, and telescopic rods connected with the threaded blocks, the telescopic rods can be telescopic under the action of external force, wherein the first movable plate 22 and the second movable plate 27 are connected with the first threaded block 24 of the first screw rod and the second threaded block 29 of the second screw rod respectively through the telescopic rods; taking the first movable plate 22 as an example, when the flow of the flow guide pipe 1 needs to be increased, the corresponding screw rod is rotated clockwise manually, the first threaded block 24 can move left along the screw rod, the telescopic rod is compressed, the telescopic rod drives one end of the first movable plate 22 to rotate to the outside of the flow guide pipe 1, and the air outlet of the flow guide pipe 1 is increased; when the flow of the flow guide pipe 1 needs to be reduced, the corresponding screw rod is rotated counterclockwise manually, the first threaded block 24 can move right along the screw rod, the telescopic rod is stretched, the telescopic rod drives one end of the first movable plate 22 to rotate to the inside of the flow guide pipe 1, and the air outlet of the flow guide pipe 1 is reduced; the principle of the second movable plate 27 and the first movable plate 22 is identical, and will not be repeated herein; therefore, the two screw rods can be used to drive the first movable plate 22 and the second movable plate 27 to rotate separately and accurately.

[0037] Referring to Figure 1 In an embodiment of the utility model, in order to drive the first movable plate 22 and the second movable plate 27 to rotate synchronously and accurately, the screw rod is provided as a reverse screw rod 26, the reverse screw rod 26 is provided with two thread segments with opposite screw directions, the two thread segments of the reverse screw rod 26 are threadedly connected with the first threaded block 24 and the second threaded block 29 respectively, the first movable plate 22 is connected with the first threaded block 24 through a first telescopic rod 28, and the second movable plate 27 is connected with the second threaded block 29 through a second telescopic rod 23; when the flow of the flow guide pipe 1 needs to be increased, the reverse screw rod 26 can be rotated counterclockwise, so that the first threaded block 24 and the second threaded block 29 are relatively far away along the reverse screw rod 26, the first telescopic rod 28 and the second telescopic rod 23 are synchronously compressed, and the first telescopic rod 28 and the second telescopic rod 23 drive the first movable plate 22 and the second movable plate 27 to rotate to the outside of the flow guide pipe 1 and open respectively; similarly, when the flow of the flow guide pipe needs to be increased, the reverse screw rod 26 can be rotated clockwise.

[0038] Further, the reverse screw rod 26 is vertically arranged with the flow guide pipe 1, so that the deformation amount of the first telescopic rod 28 and the second telescopic rod 23 is equal under the same displacement of the first threaded block 24 and the second threaded block 29, and the rotation angle of the first movable plate 22 and the second movable plate 27 is consistent.

[0039] Referring to Figure 1 As shown in the figure, the end of the screw rod and the reverse screw rod 26 is provided with a rotating disc 25, the rotating disc 25 facilitates the hand of an operator to exert force and rotate the screw rod and the reverse screw rod 26 quickly.

[0040] Referring to Figure 4 As shown, the cleaning assembly 4 comprises a mounting seat, a threaded rod 45, and a sliding rod 47 parallel to the threaded rod 45, one end of the mounting seat is provided with a first movable sleeve 46, the first movable sleeve 46 is threadedly connected to the threaded rod 45 through an internal threaded hole, the other end of the mounting seat is provided with a second movable sleeve 48, the second movable sleeve 48 is sleeved outside the sliding rod 47 through an internal through hole, the cleaning piece 49 can be detachably arranged on the mounting seat, and the cleaning piece 49 can be driven to accurately displace by rotating the threaded rod 45, thereby improving the cleaning effect of the filter screen 41; further, the driver 44 drives the threaded rod 45 to rotate, and the cleaning piece 49 can automatically reciprocate along the threaded rod 45, thereby greatly improving the automation of the cleaning work.

[0041] Further, the threaded rod 45 and the sliding rod 47 are arranged on opposite sides of the air inlet, so that the cleaning piece 49 is always located on one side of the filter screen 41.

[0042] Referring to Figure 3 and Figure 5 As shown, the flow guide pipe 1 is arranged as a rectangular flow guide pipe, the first movable plate 22 and the second movable plate 27 are both arranged as rectangles, one end of the second movable plate 27 is connected to two parallel edges of the rectangular flow guide pipe through hinges 21, specifically, one straight edge of the first movable plate 22 is movably connected to one straight edge of the rectangular flow guide pipe through a hinge 21, and one straight edge of the second movable plate 27 is movably connected to the other straight edge of the rectangular flow guide pipe through a hinge, and the above-mentioned hinges are arranged on the flow guide pipe 1 and the inner wall, therefore, the first movable plate 22 and the second movable plate 27 can be fully rotated without interfering with the flow guide pipe 1.

[0043] Further, the rectangular inner hole of the rectangular flow guide pipe and the closure plate are profile-matched, which can be understood as that the area of the closure plate is equal to the area of the rectangular inner hole, therefore, the closure plate can completely close the air outlet of the flow guide pipe 1, cut off the flow guide pipe 1, and prevent the coal-fired flue gas from leaking through the gap between the first movable plate 22 and the second movable plate 27, the gap between the first movable plate 22 and the edge of the pipe opening of the flow guide pipe 1, and the gap between the second movable plate 27 and the edge of the pipe opening of the flow guide pipe 1.

[0044] Referring to Figure 5 As shown, it further comprises a flow guide assembly provided with an impeller and a motor 31, the impeller is arranged inside the flow guide pipe 1, and the motor 31 drives the impeller to rotate, so that the coal-fired flue gas can be fully stirred, and the density of the coal-fired flue gas is ensured to be uniform.

[0045] Referring to Figure 5As shown, the impeller includes a first impeller 33 and a second impeller 35, which are distributed along the length direction of the flow guide pipe 1, and can accelerate the flow of coal-fired flue gas; the first impeller 33 and the second impeller 35 are driven by belts, thereby reducing the maintenance cost of the flow guide device.

[0046] Referring to Figure 4 As shown, the cleaning member 49 is preferably a cleaning brush, which is in full contact with the surface of the filter screen 41 and can sweep away large-particle impurities; in other embodiments, the cleaning member 49 can also be provided with a gas jet head or a water gun, or a combination of the gas jet head and the cleaning member 49, or the cleaning member 49 and the water gun; the gas jet head and the water gun can remove particles with viscosity by high-pressure gas and liquid.

[0047] Referring to Figure 1 As shown, the flow guide pipe 1 is provided with shaft holes opposite to the two side walls, the rotating shaft of the first impeller 33 and the rotating shaft of the second impeller 35 both pass through the shaft holes and are rotationally connected to the flow guide pipe 1, and the end portions of the rotating shafts extend out of the flow guide pipe 1, so as to drive the first impeller 33 and the second impeller 35 to rotate outside the flow guide pipe 1.

[0048] Referring to Figure 1 As shown, the motor 31 is arranged on one side of the flow guide pipe 1, and drives the rotating shaft of the first impeller 33 to rotate; the motor 31 can accelerate the rotation of the first impeller 33 and the second impeller 35, and is preferably a servo motor.

[0049] Referring to Figure 1 As shown, the rotating shaft of the first impeller 33 is coaxially connected to a first belt pulley 32, and the rotating shaft of the second impeller 35 is coaxially connected to a second belt pulley 34; the first belt pulley 32 and the second belt pulley 34 are both located outside the flow guide pipe 1, and are driven by belts; the first belt pulley 32 and the second belt pulley 34 can reduce the sliding of the belts and improve the transmission efficiency.

[0050] Referring to Figure 4 As shown, in order to improve the stability of the threaded rod 45 and the slide rod 47, the four corners of the pipe opening of the flow guide pipe 1 are provided with limiting sleeves, the two ends of the slide rod 47 are respectively fixedly connected to two limiting sleeves 43, and the two ends of the threaded rod 45 are rotationally connected to two limiting sleeves 42.

[0051] Further, the edges of the first movable plate 22 and the second movable plate 27 are provided with elastic sealing strips, which can reduce the gap between the first movable plate 22 and the second movable plate 27, the gap between the first movable plate 22 and the edge of the flow guide pipe 1, and the gap between the second movable plate 27 and the edge of the flow guide pipe 1, thereby improving the intercepting effect of the closure plate.

[0052] The working principle of the adjustable size and automatic cleaning flow guide device is as follows:

[0053] After being powered on, the motor 31 drives the first impeller 33 and the second impeller 35 to rotate, and sends the coal-fired flue gas in the flow guide pipe 1 into the desulfurization tower. At one end of the flow guide pipe 1, if it is necessary to reduce the flow of the flow guide pipe 1, the rotating disc 25 is manually rotated clockwise to drive the reverse screw rod 26 to rotate, the first threaded sliding block 24 and the second threaded sliding block 29 move away from each other, the first telescopic rod 28 and the second telescopic rod 23 are retracted, and the first telescopic rod 28 and the second telescopic rod 23 drive the first movable plate 22 and the second movable plate 27 to gradually rotate inward of the flow guide pipe 1, so as to adjust the size and flow of the flow guide pipe 1. Conversely, the rotating disc 25 is rotated counterclockwise. At the other end of the flow guide pipe 1, when the large-particle impurities on the filter screen 41 accumulate to a certain extent, the driver 44 is turned on, the driver 44 drives the threaded rod 45 to rotate, the mounting seat moves along the threaded rod 45 and the sliding rod 47 to reciprocate, and the cleaning brush reciprocally sweeps the surface of the filter screen 41 to sweep off the large-particle impurities.

[0054] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A size-adjustable and self-cleaning flow guide device comprising a flow guide pipe and a filter screen, the filter screen being arranged at one end of the flow guide pipe, characterized in that, Further comprising, a cleaning assembly arranged at one end of the flow guide pipe, the cleaning assembly comprising a cleaning member and a driver driving the cleaning member to reciprocate along the surface of the filter screen, the cleaning member cleaning the filter screen; a flow guide cover assembly arranged at the other end of the flow guide pipe relative to the cleaning assembly, the flow guide cover assembly comprising a first movable plate, a second movable plate, and a driving mechanism, the first movable plate and the second movable plate being respectively arranged at opposite sides of the opening of the flow guide pipe, the first movable plate and the second movable plate forming a closed plate closing the flow guide pipe when abutting, wherein the driving mechanism drives the first movable plate and the second movable plate to rotate.

2. The size-adjustable and self-cleaning flow guide device according to claim 1, characterized in that, The driving mechanism comprises a screw rod, a threaded slider threadedly connected to the screw rod, and an extension rod connected to the threaded slider, wherein the first movable plate and the second movable plate are respectively connected to the extension rod.

3. The size-adjustable and self-cleaning flow guide device according to claim 2, characterized in that, The screw rod is arranged as a reverse screw rod, the reverse screw rod being arranged perpendicularly to the flow guide pipe, two threaded segments of the reverse screw rod being respectively threadedly connected to two threaded sliders, the first movable plate and the second movable plate being respectively connected to the two threaded sliders through the extension rod.

4. The size-adjustable and self-cleaning flow guide device according to claim 2, characterized in that, An end of the screw rod is provided with a rotating disc.

5. The size-adjustable and self-cleaning flow guide device according to claim 1, characterized in that, The cleaning assembly comprises a mounting seat, a threaded rod, and a sliding rod parallel to the threaded rod, one end of the mounting seat being threadedly connected to the threaded rod through a threaded hole, the other end of the mounting seat being slidingly connected to the sliding rod through a through hole, the cleaning member being arranged in the mounting seat, the driver driving the threaded rod to rotate.

6. The size-adjustable and self-cleaning flow guide device according to claim 1, wherein, The flow guide pipe is arranged as a rectangular flow guide pipe, the first movable plate and the second movable plate being respectively connected to opposite parallel sides of the opening of the rectangular flow guide pipe through hinges.

7. The size-adjustable and self-cleaning flow guide device according to claim 6, characterized in that The rectangular inner hole of the rectangular flow guide pipe and the closed plate are conformally matched.

8. The size-adjustable and self-cleaning flow guide device according to claim 1, characterized in that, Further comprising a flow guide assembly provided with an impeller and a motor, the impeller being arranged inside the flow guide pipe, the motor driving the impeller to rotate.

9. The size-adjustable and self-cleaning flow guide device according to claim 8, characterized in that The impeller comprises a first impeller and a second impeller, the first impeller and the second impeller being distributed along the length direction of the flow guide pipe, the first impeller and the second impeller being driven by a belt.

10. The size-adjustable and self-cleaning flow guide device according to claim 1, characterized in that, The cleaning member comprises a cleaning brush, an air jet head, and a water jet gun.

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