Self-maintenance method for high and large stainless steel chimney

Abstract

The invention discloses a high and large stainless steel chimney self-maintenance method which comprises the following steps: installing a hollow spiral pipeline on a chimney, installing a hose and an air pipe in the hollow spiral pipeline, and installing a nozzle on the hollow spiral pipeline; the cleaning liquid container, the anti-rust paint container, the hose and the air pipe are connected with a control box; the working states of the spray head, the hose, the air pipe, the cleaning liquid container and the anti-rust paint container are controlled through the control box so that the surface of the chimney can be automatically cleaned, and anti-rust paint can be automatically sprayed on the surface of the chimney. According to the self-maintenance method of the high and large stainless steel chimney, the spray head can slide up and down along the hollow spiral pipeline wound on the surface of the chimney, and the cleaning liquid and the antirust paint are sprayed on the surface of the chimney in the sliding process; the working states of the nozzle, the cleaning liquid container and the anti-rust paint container are controlled through the control box, so that automatic cleaning of the chimney and automatic spraying of anti-rust paint are achieved, and automatic paint spraying maintenance can be conducted through production gaps.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic painting, and more specifically, to a self-maintenance method for a tall stainless steel chimney. Background Art

[0002] Currently, the requirements for environmental protection are becoming increasingly strict, and the national regulation stipulates that the emission standard for chimneys less than 35 meters above the ground is 6000 (dimensionless). Therefore, production enterprises adopt the method of increasing the height of the chimney to solve this problem.

[0003] The national regulation stipulates that the emission standards for chimneys more than 35 meters above the ground meet the requirements, but this brings great difficulties to the maintenance of the chimney. For example, for stainless steel chimneys with a diameter greater than 1000 mm, the anti-rust paint is sprayed once a year, which not only poses safety hazards but also maintenance deficiencies, resulting in greater usage risks.

[0004] Therefore, there is an urgent need for a self-maintenance method for tall stainless steel chimneys. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-maintenance method for a tall stainless steel chimney to solve the above problems in the prior art, which can realize the automatic painting function of the tall stainless steel chimney, complete the maintenance of the stainless steel chimney, and ensure the safe and normal use of the stainless steel chimney.

[0006] The present invention provides a self-maintenance method for a tall stainless steel chimney, which includes: installing a hollow spiral pipe on the chimney, installing a hose and an air pipe inside the hollow spiral pipe, and installing a nozzle on the hollow spiral pipe;

[0007] Connecting a cleaning liquid container, an anti-rust paint container, the hose, and the air pipe to a control box respectively;

[0008] Controlling the working states of the nozzle, the hose, the air pipe, the cleaning liquid container, and the anti-rust paint container through the control box to automatically clean the surface of the chimney and automatically spray anti-rust paint on the surface of the chimney.

[0009] The self-maintenance method for a tall stainless steel chimney as described above, wherein preferably, the installing a hollow spiral pipe on the chimney, installing a hose and an air pipe inside the hollow spiral pipe, and installing a nozzle on the hollow spiral pipe includes:

[0010] Wrapping a hollow spiral pipe around the chimney;

[0011] Inserting the hose and the air pipe into the hollow spiral pipe from the lower end of the hollow spiral pipe, extending upward along the spiral direction of the hollow spiral pipe, and passing out from the top end of the hollow spiral pipe;

[0012] Install a spray head that can slide along the hollow spiral pipe on the hollow spiral pipe.

[0013] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, winding the hollow spiral pipe on the chimney includes:

[0014] Wind the hollow spiral pipe on the surface of the chimney;

[0015] Set up a column on one side of the chimney;

[0016] Connect the column and the hollow spiral pipe through a plurality of fixed support rods distributed vertically.

[0017] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, inserting the hose and the air pipe into the hollow spiral pipe from the lower end of the hollow spiral pipe, extending upward along the spiral direction of the hollow spiral pipe, and passing out from the top end of the hollow spiral pipe includes:

[0018] Integrate the hose and the air pipe into a cable at the entrance of the hollow spiral pipe;

[0019] Insert the cable into the hollow spiral pipe from the lower end of the hollow spiral pipe, extend upward along the spiral direction of the hollow spiral pipe, and pass out from the top end of the hollow spiral pipe.

[0020] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, installing a spray head that can slide along the hollow spiral pipe on the hollow spiral pipe includes:

[0021] Open an opening groove along the spiral direction on the surface of the hollow spiral pipe;

[0022] Set tracks on both sides of the opening groove;

[0023] Install the spray head on the track.

[0024] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, connecting the cleaning liquid container, the anti-rust paint container, the hose and the air pipe to the control box respectively includes:

[0025] Connect the air pipe to the control box;

[0026] Set valves on the cleaning liquid container and the anti-rust paint container respectively;

[0027] Connect the valves corresponding to the cleaning liquid container and the anti-rust paint container to the control box respectively;

[0028] A pump is provided between the cleaning liquid container and the rust preventive paint container and the hose.

[0029] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, the control box controls the working states of the spray head, the hose, the air pipe, the cleaning liquid container and the rust preventive paint container to automatically clean the surface of the chimney and automatically spray rust preventive paint on the surface of the chimney, including:

[0030] Set the starting and ending positions, moving speed and number of round trips of the spray head through the control box;

[0031] Control the connection between the hose and the cleaning liquid container through the control box;

[0032] Control the spray head to move up and down along the hollow spiral pipe through the control box;

[0033] During the up and down movement of the spray head, control the spray head to spray cleaning liquid through the control box to clean the surface of the chimney;

[0034] After the cleaning is completed, switch the connection between the hose and the rust preventive paint container through the control box;

[0035] Control the spray head to move up and down along the hollow spiral pipe through the control box;

[0036] During the up and down movement of the spray head, control the spray head to spray rust preventive paint through the control box to perform spray painting maintenance on the surface of the chimney;

[0037] Judge whether the number of round trips of the spray head meets the end condition. If it meets, end the automatic spraying work; if it does not meet, repeat the steps of spraying cleaning liquid first and then spraying rust preventive paint.

[0038] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, both the initial position and the stop position of the spray head are at the lowermost end of the chimney.

[0039] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, during the up and down movement of the spray head, control the spray head to spray cleaning liquid through the control box to clean the surface of the chimney, including:

[0040] Preset a cleaning time threshold through the control box;

[0041] Control the valve corresponding to the cleaning liquid container to open through the control box, so that the cleaning liquid in the cleaning liquid container is sprayed onto the surface of the chimney through the hose, the hollow spiral pipe and the spray head;

[0042] After reaching the cleaning time threshold, the control box controls the valve corresponding to the cleaning liquid container to close and controls the valve corresponding to the air pipe to open, so as to spray compressed air from the air pipe to dry the surface of the chimney.

[0043] The self-maintenance method of the tall stainless steel chimney as described above, wherein, preferably, during the up and down movement of the nozzle, the control box controls the nozzle to spray anti-rust paint to perform spray paint maintenance on the surface of the chimney, including:

[0044] Preset a maintenance time threshold through the control box;

[0045] The control box controls the valve corresponding to the cleaning liquid container to close and controls the valve corresponding to the anti-rust paint container to open, so that the anti-rust paint in the anti-rust paint container is sprayed onto the surface of the chimney through the hose, the hollow spiral pipe and the nozzle;

[0046] After reaching the maintenance time threshold, the control box controls the valve corresponding to the anti-rust paint container to close and controls the valve corresponding to the air pipe to open, so as to spray compressed air from the air pipe to dry the surface of the chimney.

[0047] The present invention provides a self-maintenance method for a tall stainless steel chimney. The nozzle can slide up and down along a hollow spiral pipe wound around the surface of the chimney, and spray cleaning liquid and anti-rust paint on the surface of the chimney during the sliding process; the control box controls the working states of the nozzle, the cleaning liquid container and the anti-rust paint container to realize automatic cleaning of the chimney and automatic spraying of anti-rust paint, and automatic spray paint maintenance can be carried out during the production gap; it can efficiently and automatically complete the self-cleaning and spray paint maintenance of the tall chimney, ensuring personal safety and the safe operation of equipment, so as to solve the problems of personnel safety and equipment operation safety faced by production enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the drawings, wherein:

[0049] Figure 1 It is a flowchart of an embodiment of the self-maintenance method for a tall stainless steel chimney provided by the present invention;

[0050] Figure 2 It is a schematic structural diagram of an embodiment of the self-maintenance method for a tall stainless steel chimney provided by the present invention;

[0051] Figure 3 It is a schematic diagram of the relative positional relationship of the hollow spiral pipe, the nozzle, the track and the opening groove in an embodiment of the self-maintenance method for a tall stainless steel chimney provided by the present invention.

[0052] Description of the reference numerals in the drawings: 1 - vertical column, 2 - fixed support rod, 3 - hollow spiral pipe, 4 - nozzle, 5 - hose, 6 - air pipe, 7 - control box, 8 - cleaning liquid container, 9 - anti-rust paint container, 10 - pump, 11 - opening groove, 12 - track, 13 - chimney, 14 - rain cap, 15 - cable. Detailed implementation manners

[0053] Now, various exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0054] The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "comprising" or "including" mean that the elements before the term cover the elements listed after the term and do not exclude the possibility of also covering other elements. Terms such as "upper" and "lower" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0055] In the present disclosure, when it is described that a specific component is located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components and have an intermediate component.

[0056] All terms used in the present disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary such as should be construed as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0057] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.

[0058] As Figure 2 AndFigure 3 As shown in Figure 3 , the self-maintenance device for a tall stainless steel chimney adopted by the self-maintenance method for a tall stainless steel chimney provided in this embodiment includes: a hollow spiral pipe 3 wound around the chimney 13, a nozzle 4 slidable along the hollow spiral pipe 3 provided on the hollow spiral pipe 3, a hose 5 and an air pipe 6 provided inside the hollow spiral pipe 3, the hose 5 being connected to a cleaning liquid container 8 and an anti-rust paint container 9, the air pipe 6 being connected to a control box 7, and the control box 7 being further connected to the cleaning liquid container 8, the anti-rust paint container 9 and the nozzle 4.

[0059] Among them, the chimney 13 is formed by connecting multiple sections of 304 stainless steel cylinders together through flanges and is fixed by a fixing frame and a foundation.

[0060] As Figure 1 shown in Figure 1 , in the actual implementation process of the self-maintenance method for a tall stainless steel chimney provided in this embodiment, it specifically includes the following steps:

[0061] Step S1: Install the hollow spiral pipe 3 on the chimney 13, install the hose 5 and the air pipe 6 inside the hollow spiral pipe 3, and install the nozzle 4 on the hollow spiral pipe 3.

[0062] Among them, the nozzle 4 can spray cleaning liquid or anti-rust paint. Among them, the nozzle 4 adopts a magnetic adsorption brake or an electromagnetic brake, so that it can be automatically locked when power is off to prevent falling. A rain cap 14 is provided at the top of the chimney 13.

[0063] In an implementation manner of the self-maintenance method for a tall stainless steel chimney of the present invention, the step S1 may specifically include:

[0064] Step S11: Wind the hollow spiral pipe 3 on the chimney 13.

[0065] In an implementation manner of the self-maintenance method for a tall stainless steel chimney of the present invention, the step S11 may specifically include:

[0066] Step S111: Wind the hollow spiral pipe 3 on the surface of the chimney 13.

[0067] Step S112: Set up a column 1 on one side of the chimney 13.

[0068] Step S113: Connect the column 1 and the hollow spiral pipe 3 through multiple fixing support rods 2 distributed vertically.

[0069] Among them, the upright column 1 is made of stainless steel material, and multiple fixed support rods 2 are parallel to each other. In an embodiment of the present invention, the multiple fixed support rods 2 are arranged horizontally. It should be noted that the present invention does not specifically limit the material, size, installation position of the upright column 1, the number, distribution method, installation method, etc. of the fixed support rods 2.

[0070] Step S12: Insert the hose 5 and the air pipe 6 into the hollow spiral pipe 3 from the lower end of the hollow spiral pipe 3, extend upward along the spiral direction of the hollow spiral pipe 3, and penetrate out from the top end of the hollow spiral pipe 3.

[0071] Among them, compressed air is connected to the air pipe 6. In an embodiment of the self-maintenance method of the tall stainless steel chimney of the present invention, the step S12 may specifically include:

[0072] Step S121: Integrate the hose 5 and the air pipe 6 into the cable 15 at the entrance of the hollow spiral pipe 3.

[0073] Step S122: Insert the cable 15 into the hollow spiral pipe 3 from the lower end of the hollow spiral pipe 3, extend upward along the spiral direction of the hollow spiral pipe 3, and penetrate out from the top end of the hollow spiral pipe 3.

[0074] Specifically, the cable 15 is arranged in the hollow spiral pipe 3 and is connected to the control box 7. In an embodiment of the present invention, both the cable 15 and the air pipe 6 are led out from the control box 7, and at the entrance of the hollow spiral pipe 3, the air pipe 6 and the hose 5 are integrated into the cable 15.

[0075] Step S13: Install a spray head 4 that can slide along the hollow spiral pipe 3 on the hollow spiral pipe 3.

[0076] In an embodiment of the self-maintenance method of the tall stainless steel chimney of the present invention, the step S13 may specifically include:

[0077] Step S131: Open an opening groove 11 along the spiral direction on the surface of the hollow spiral pipe 3.

[0078] Step S132: Set tracks 12 on both sides of the opening groove 11.

[0079] In an embodiment of the present invention, the track 12 can be welded to the hollow spiral pipe 3 through the opening groove 11.

[0080] Step S133: Install the spray head 4 on the track 12.

[0081] The nozzle 4 can slide up and down along the track 12, thereby facilitating the spraying of cleaning liquid and anti-rust paint on the surface of the chimney 13 during the sliding process of the nozzle 4.

[0082] Step S2: Connect the cleaning liquid container 8, the anti-rust paint container 9, the hose 5, and the air pipe 6 to the control box 7 respectively.

[0083] Among them, a PLC controller is provided in the control box 7. In an embodiment of the present invention, the model of the PLC controller is S7-300. It should be noted that the present invention does not specifically limit the type and model of the controller in the control box 7. In an embodiment of the self-maintenance method for a tall stainless steel chimney of the present invention, the step S2 may specifically include:

[0084] Step S21: Connect the air pipe 6 to the control box 7.

[0085] Step S22: Set valves on the cleaning liquid container 8 and the anti-rust paint container 9 respectively.

[0086] Among them, the cleaning liquid container 8 is used to hold the cleaning liquid. In an embodiment of the present invention, the cleaning liquid is water. In other embodiments of the present invention, the cleaning liquid is alcohol. It should be noted that the present invention does not specifically limit the composition of the cleaning liquid. The anti-rust paint container 9 is used to hold the anti-rust paint.

[0087] Step S23: Connect the valves corresponding to the cleaning liquid container 8 and the anti-rust paint container 9 to the control box 7 respectively.

[0088] Specifically, when it is necessary to clean with the cleaning liquid, the control box 7 is used to control the valve of the cleaning liquid container 8 to open and close the valve of the anti-rust paint container 9; when painting for maintenance, the control box 7 is used to control the valve of the anti-rust paint container 9 to open and close the valve of the cleaning liquid container 8.

[0089] Step S24: Set a pump 10 between the cleaning liquid container 8 and the anti-rust paint container 9 and the hose 5.

[0090] Among them, the pump 10 is connected to the control box 7. The cleaning liquid in the cleaning liquid container 8 or the anti-rust paint in the anti-rust paint container 9 can be pumped through the pump 10, and the control box 7 can control the operation of the pump 10.

[0091] Step S3: Control the working states of the nozzle 4, the hose 5, the air pipe 6, the cleaning liquid container 8, and the anti-rust paint container 9 through the control box 7 to automatically clean the surface of the chimney 13 and automatically spray and brush anti-rust paint on the surface of the chimney 13.

[0092] Through the control box 7, the connection state between the hose 5 and the cleaning liquid container 8 and the anti-rust paint container 9 can be switched. When the hose 5 is connected to the cleaning liquid container 8, the nozzle 4 can spray the cleaning liquid to clean the chimney 13. When the hose 5 is connected to the anti-rust paint container 9, the nozzle 4 can spray the anti-rust paint to spray and brush the anti-rust paint on the surface of the chimney 13. In an embodiment of the self-maintenance method for the tall stainless steel chimney of the present invention, the step S3 may specifically include:

[0093] Step S31: Set the starting and ending positions, moving speed, and number of round trips of the nozzle 4 through the control box 7.

[0094] Among them, both the initial position and the stop position of the nozzle 4 are at the lowermost end of the chimney 13.

[0095] Step S32: Control the connection between the hose 5 and the cleaning liquid container 8 through the control box 7.

[0096] Step S33: Control the nozzle 4 to move up and down along the hollow spiral pipe 3 through the control box 7.

[0097] Among them, the nozzle 4 is connected with a driving device, and the driving device is connected with the control box 7. By controlling the driving device to work through the control box 7, the nozzle 4 is driven to slide up and down along the hollow spiral pipe 3. The driving device includes a hydraulic press or a motor. It should be noted that the present invention does not specifically limit the type of the driving device.

[0098] Step S34: During the up and down movement of the nozzle 4, control the nozzle 4 to spray the cleaning liquid through the control box 7 to clean the surface of the chimney 13.

[0099] In an embodiment of the self-maintenance method for the tall stainless steel chimney of the present invention, the step S34 may specifically include:

[0100] Step S341: Preset the cleaning time threshold through the control box 7.

[0101] Step S342: Control the opening of the valve corresponding to the cleaning liquid container 8 through the control box 7, so that the cleaning liquid in the cleaning liquid container 8 is sprayed onto the surface of the chimney 13 through the hose 5, the hollow spiral pipe 3, and the nozzle 4.

[0102] Step S343: After reaching the cleaning time threshold, the control box 7 controls the closing of the valve corresponding to the cleaning liquid container 8 and controls the opening of the valve corresponding to the air pipe 6 to spray compressed air from the air pipe 6 to dry the surface of the chimney 13.

[0103] Step S35: After the cleaning is completed, switch the connection between the hose 5 and the rust-proof paint container 9 through the control box 7.

[0104] Step S36: Control the spray head 4 to move up and down along the hollow spiral pipe 3 through the control box 7.

[0105] Step S37: During the up-and-down movement of the spray head 4, control the spray head 4 to spray rust-proof paint through the control box 7 to perform spray painting maintenance on the surface of the chimney.

[0106] In an implementation manner of the self-maintenance method for the tall stainless steel chimney of the present invention, step S37 may specifically include:

[0107] Step S371: Preset a maintenance time threshold through the control box 7.

[0108] Step S372: Control the valve corresponding to the cleaning liquid container 8 to close and the valve corresponding to the rust-proof paint container 9 to open through the control box 7, so that the rust-proof paint in the rust-proof paint container 9 is sprayed onto the surface of the chimney 13 through the hose 5, the hollow spiral pipe 3 and the spray head 4.

[0109] Step S373: After reaching the maintenance time threshold, the control box 7 controls the valve corresponding to the rust-proof paint container 9 to close and the valve corresponding to the air pipe 6 to open to spray compressed air from the air pipe 6 to dry the surface of the chimney 13.

[0110] In summary, referring to step S343 and step S373, when the spray head 4 sprays the cleaning liquid or the rust-proof paint, the spray head 4 needs air to eject and atomize the cleaning liquid or the rust-proof paint. Therefore, after the spray head 4 works, the air pipe 6 also works to spray compressed air from the air pipe 6. As long as the hose 5 finishes working, that is, after completing the transportation of the cleaning liquid or the rust-proof paint, the air pipe 6 then enters the working state and starts to transport compressed air to achieve the function of atomizing the cleaning liquid or the rust-proof paint.

[0111] Step S38: Determine whether the number of round trips of the spray head 4 meets the end condition. If it meets, end the automatic spraying and brushing work; if it does not meet, repeat the steps of first spraying the cleaning liquid and then spraying the rust-proof paint.

[0112] In an embodiment of the present invention, the control box 7 first controls the cleaning liquid container 8 to open and sets the cleaning time. The chimney 13 is cleaned with the cleaning liquid. When the set cleaning time arrives, pressurized air starts to be ejected from the air pipe 6 to dry the surface of the chimney 13. Then, the control box 7 controls the anti-rust paint container 9 to open and starts to automatically spray paint on the chimney 13. When the set cleaning time arrives, pressurized air starts to be ejected from the air pipe 6 to dry the surface of the chimney 13. It works according to the set speed and reciprocating times until completion and stops.

[0113] The self-maintenance method for a tall stainless-steel chimney provided by the embodiment of the present invention has a nozzle that can slide up and down along a hollow spiral pipe wound around the surface of the chimney, and sprays cleaning liquid and anti-rust paint on the chimney surface during the sliding process. By controlling the working states of the nozzle, the cleaning liquid container, and the anti-rust paint container through the control box, automatic cleaning of the chimney and automatic spraying of anti-rust paint can be achieved. Automatic painting maintenance can be carried out during production breaks. It can efficiently and automatically complete the self-cleaning and painting maintenance of tall chimneys, ensuring personal safety and the safe operation of equipment, so as to solve the problems of personal safety and equipment operation safety faced by production enterprises.

[0114] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0115] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A self-maintenance method for a tall stainless steel chimney, characterized in that: include: A hollow spiral pipe is installed on the chimney, a hose and an air pipe are installed in the hollow spiral pipe, and a nozzle is installed on the hollow spiral pipe; Connecting the cleaning liquid container, the anti-rust paint container, the hose and the air pipe to the control box respectively; The control box controls the working states of the nozzle, the hose, the air pipe, the cleaning liquid container and the anti-rust paint container to automatically clean the chimney surface and automatically spray anti-rust paint on the chimney surface.

2. The self-maintenance method for a tall stainless steel chimney according to claim 1, characterized in that: The method of installing a hollow spiral pipe on the chimney, installing a hose and an air pipe in the hollow spiral pipe, and installing a nozzle on the hollow spiral pipe comprises: Winding a hollow spiral pipe around the chimney; Inserting the hose and the air pipe into the hollow spiral pipe from the lower end thereof, extending the hose and the air pipe upward along the spiral direction of the hollow spiral pipe, and passing through the top end of the hollow spiral pipe; A nozzle which can slide along the hollow spiral pipe is installed on the hollow spiral pipe.

3. The self-maintenance method for a tall stainless steel chimney according to claim 2 is characterized in that: The method of winding the hollow spiral pipe on the chimney comprises: Winding a hollow spiral pipe on the surface of the chimney; A column is arranged on one side of the chimney; The column and the hollow spiral pipe are connected via a plurality of fixed support rods distributed along the vertical direction.

4. The self-maintenance method for a tall stainless steel chimney according to claim 2 is characterized in that: The step of inserting the hose and the air pipe into the hollow spiral pipe from the lower end of the hollow spiral pipe, extending the hose and the air pipe upward along the spiral direction of the hollow spiral pipe, and passing through the top end of the hollow spiral pipe comprises: At the inlet of the hollow spiral pipe, the hose and the air pipe are integrated into the cable; The cable is inserted into the hollow spiral pipe from the lower end of the hollow spiral pipe, extends upward along the spiral direction of the hollow spiral pipe, and passes through the top end of the hollow spiral pipe.

5. The self-maintenance method for a tall stainless steel chimney according to claim 2, characterized in that: The nozzle installed on the hollow spiral pipe and capable of sliding along the hollow spiral pipe comprises: An open groove is provided on the surface of the hollow spiral pipe along the spiral direction; Tracks are arranged on both sides of the opening groove; The spray head is installed on the track.

6. The self-maintenance method for a tall stainless steel chimney according to claim 1, characterized in that: The method of connecting the cleaning liquid container, the anti-rust paint container, the hose and the air pipe to the control box respectively comprises: Connecting the air pipe to the control box; Valves are respectively provided on the cleaning liquid container and the anti-rust paint container; Connect the valves corresponding to the cleaning liquid container and the anti-rust paint container to the control box respectively; A pump is provided between the cleaning liquid container, the anti-rust paint container and the hose.

7. The self-maintenance method for a tall stainless steel chimney according to claim 1, characterized in that: The control box controls the working states of the nozzle, the hose, the air pipe, the cleaning liquid container and the anti-rust paint container to automatically clean the chimney surface and automatically spray anti-rust paint on the chimney surface, including: The start and end positions, movement speed and number of round trips of the nozzle are set through the control box; Controlling the hose to be connected to the cleaning liquid container through the control box; The control box controls the nozzle to move up and down along the hollow spiral pipe; During the process of the nozzle moving up and down, the control box controls the nozzle to spray cleaning liquid to clean the surface of the chimney; After the cleaning is completed, the control box is used to switch the hose to be connected to the anti-rust paint container; The control box controls the nozzle to move up and down along the hollow spiral pipe; During the process of the nozzle moving up and down, the control box controls the nozzle to spray anti-rust paint to perform spray paint maintenance on the surface of the chimney; It is determined whether the number of reciprocating times of the nozzle meets the termination condition. If so, the automatic spraying operation is terminated; if not, the steps of first spraying the cleaning liquid and then spraying the anti-rust paint are repeated.

8. The self-maintenance method for a tall stainless steel chimney according to claim 7, characterized in that: The initial position and the stop position of the nozzle are both at the lowermost end of the chimney.

9. The self-maintenance method for a tall stainless steel chimney according to claim 7, characterized in that: In the process of the nozzle moving up and down, the control box controls the nozzle to spray cleaning liquid to clean the surface of the chimney, including: Presetting a cleaning time threshold by means of the control box; The control box controls the valve corresponding to the cleaning liquid container to open, so that the cleaning liquid in the cleaning liquid container is sprayed onto the chimney surface via the hose, the hollow spiral pipe and the nozzle; After reaching the cleaning time threshold, the control box controls the valve corresponding to the cleaning liquid container to close, and controls the valve corresponding to the air pipe to open, so as to spray compressed air from the air pipe to dry the chimney surface.

10. The self-maintenance method for a tall stainless steel chimney according to claim 7, characterized in that: In the process of the nozzle moving up and down, the control box controls the nozzle to spray anti-rust paint to perform paint spraying maintenance on the surface of the chimney, including: Presetting a maintenance time threshold by means of the control box; The control box controls the valve corresponding to the cleaning liquid container to be closed, and controls the valve corresponding to the anti-rust paint container to be opened, so that the anti-rust paint in the anti-rust paint container is sprayed onto the chimney surface via the hose, the hollow spiral pipe and the spray head; After reaching the maintenance time threshold, the control box controls the valve corresponding to the anti-rust paint container to close, and controls the valve corresponding to the air pipe to open, so as to spray compressed air from the air pipe to dry the chimney surface.

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