A method and device for corrosion protection of a fan impeller

Abstract

The application relates to the technical field of fan impellers, in particular to a fan impeller anti-corrosion treatment method and device, which comprises a handle, a connecting frame, a rotating frame, a mounting head, a spray head, a spraying pipe, a torsional spring, a connecting rope, a rotating buckle, a clamping block, a first spring and a pull rod, and the handle is provided with a rotating groove; the connecting rope is used for pulling the rotating frame to deflect by a certain angle, so that the back of the fan impeller can be sprayed conveniently; the rotating buckle can be pulled to directly adjust the angle of the rotating frame at the handle, the device can enable a cleaning personnel to directly enter the inside of the fan from a check window or a ventilation window of the fan and spray rust removal anticorrosive agent on the surface and the back of the impeller; meanwhile, the device is simple in structure, low in manufacturing cost, does not need to completely disassemble the fan, is simple, fast, low in cost, high in efficiency and capable of solving the problems of high replacement and maintenance cost and difficult rust removal and corrosion prevention after the existing fan impeller is worn, aged and rusted.

Description

Technical Field

[0001] This invention relates to the field of wind turbine impeller technology, and in particular to a method and apparatus for anti-corrosion treatment of wind turbine impellers. Background Technology

[0002] Fans are used to pressurize and transport gas, and are widely used in factories, mines, tunnels, and buildings for ventilation, dust removal, and cooling. However, fans often operate in high-temperature and high-humidity environments, making fan impellers prone to corrosion and rust, requiring anti-corrosion treatment. Existing anti-corrosion treatments for fan impellers mostly involve coating the outer surface of the impeller with an anti-corrosion film to improve its resistance. However, with long-term use, the fan impeller will still wear down and age, leading to rust. Replacing the impeller or undergoing professional anti-corrosion and rust removal requires a significant amount of money, which is too high for some enterprises and factories using small and medium-sized fans, and anti-corrosion and rust removal is also difficult. Summary of the Invention

[0003] The purpose of this invention is to provide a method and apparatus for anti-corrosion treatment of wind turbine impellers, which aims to solve the problems of high replacement and maintenance costs and difficulty in anti-corrosion and rust removal after existing wind turbine impellers have worn, aged and rusted.

[0004] To achieve the above objectives, the present invention provides a device for anti-corrosion treatment of wind turbine impellers, comprising a handle, a connecting frame, a rotating frame, a mounting head, a nozzle, a spray pipe, a torsion spring, a connecting rope, a rotating buckle, a locking block, a first spring, and a pull rod. The handle has a rotating groove; the connecting frame is disposed on the side of the handle; the rotating frame is rotatably disposed on the connecting frame; the mounting head is fixed on the rotating frame; the nozzle and the mounting head are threadedly connected; the spray pipe communicates with the nozzle; the torsion spring is fixedly connected to the rotating frame and also to the connecting frame; the rotating buckle is rotatably disposed in the rotating groove of the handle; the connecting rope is fixedly connected to the rotating frame and also to the rotating buckle; the locking block is slidably disposed in the handle; the first spring is fixedly connected to the locking block and also to the handle; and the pull rod is fixed to the side of the locking block away from the handle.

[0005] The device for anti-corrosion treatment of wind turbine impellers further includes a plug rod, a second spring, and a U-shaped block. The connecting frame has multiple fixing holes, and the plug rod is disposed in the handle. The second spring is fixedly connected to the plug rod and to the handle. The U-shaped block is fixedly connected to the handle and rotatably connected to the connecting frame.

[0006] The device for anti-corrosion treatment of wind turbine impellers further includes a slider, which is fixedly connected to the insertion rod and slidably connected to the handle.

[0007] The device for anti-corrosion treatment of wind turbine impellers also includes a wire brush, which is fixed to one side of the mounting head.

[0008] The device for anti-corrosion treatment of wind turbine impellers further includes multiple clamping rings, which are arranged above the connecting frame.

[0009] The device for anti-corrosion treatment of wind turbine impellers further includes a limiting plate with a through hole, and the limiting plate is fixed to one side of the connecting frame.

[0010] On the other hand, a method for anti-corrosion treatment of wind turbine impellers, employing the aforementioned anti-corrosion treatment device for wind turbine impellers, includes: opening the wind turbine inspection window or wind turbine casing to expose the impeller; connecting the spray pipe to a rust remover bottle and a corrosion inhibitor bottle, and then installing the spray nozzle onto the mounting head to complete the device assembly; extending one side of the spray nozzle and the connecting frame through the wind turbine inspection window into the wind turbine to perform rust removal and anti-corrosion spraying on the outer surface of the impeller; turning the rotating buckle to pull back the connecting rope, causing the rotating frame to deflect 90°, and then spraying the back of the impeller from below or above the side to perform rust removal and anti-corrosion treatment on the back, thereby completing one anti-corrosion treatment.

[0011] This invention discloses a method and apparatus for anti-corrosion treatment of wind turbine impellers. The handle is for easy gripping by cleaning personnel. The connecting frame has a small diameter and is relatively long, facilitating insertion into the wind turbine. The rotating frame connects to the mounting head and, under the action of the torsion spring, remains aligned with the connecting frame. The mounting head mounts the spray nozzle, which is connected to a rust remover or corrosion inhibitor via a spray pipe. The spray nozzle can be quickly disassembled for easy replacement. The connecting rope pulls the rotating frame, causing it to deflect at a certain angle for easy spraying onto the back of the wind turbine impeller. By turning the rotating buckle, the impeller can be accessed from the... The angle of the rotating frame can be adjusted directly at the handle. The locking block remains popped out under the action of the first spring, locking the rotating buckle and fixing it in place. When adjusting the rotating buckle, the locking block can be pulled back by the pull rod. This device allows cleaning personnel to directly enter the fan from the inspection window or ventilation window and spray rust remover and anti-corrosion agent on both the impeller surface and back. At the same time, this device has a simple structure, low manufacturing cost, and does not require complete disassembly of the fan. It is simple, quick, low-cost, and efficient, thus solving the problem of high replacement and maintenance costs and difficulty in corrosion prevention and rust removal after the existing fan impeller is worn, aged, and rusted. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of a corrosion protection device for a wind turbine impeller according to the first embodiment of the present invention.

[0014] Figure 2 This is a top view of a wind turbine impeller anti-corrosion treatment device according to the first embodiment of the present invention.

[0015] Figure 3 This is a cross-sectional view of a wind turbine impeller anti-corrosion treatment device according to the first embodiment of the present invention.

[0016] Figure 4 This is a first embodiment of the anti-corrosion treatment device for wind turbine impellers. Figure 3 A magnified view of detail A.

[0017] Figure 5 This is a flowchart of a method for anti-corrosion treatment of a wind turbine impeller according to the second embodiment of the present invention.

[0018] Figure 6 This is a schematic diagram of a corrosion protection device for a wind turbine impeller according to the third embodiment of the present invention.

[0019] 101-Handle, 102-Connecting bracket, 103-Rotating bracket, 104-Mounting head, 105-Spray nozzle, 106-Spray tube, 107-Torsion spring, 108-Connecting rope, 109-Rotating buckle, 110-Clip block, 111-First spring, 112-Pull rod, 113-Rotating groove, 114-Insertion rod, 115-Second spring, 116-U-shaped block, 117-Fixing hole, 118-Slider, 119-Wire brush, 120-Clamping ring, 121-Limiting plate, 122-Through hole, 201-Reflector, 202-Transparent film, 203-Miniature lamp. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] For the first embodiment, please refer to... Figures 1-4 , Figure 1 This is a schematic diagram of a corrosion protection device for a wind turbine impeller according to the first embodiment of the present invention; Figure 2 This is a top view of a wind turbine impeller anti-corrosion treatment device according to the first embodiment of the present invention; Figure 3 This is a cross-sectional view of a wind turbine impeller anti-corrosion treatment device according to the first embodiment of the present invention; Figure 4This is a first embodiment of the anti-corrosion treatment device for wind turbine impellers. Figure 3 A magnified view of detail A.

[0022] This invention provides a method and apparatus for anti-corrosion treatment of wind turbine impellers: including a handle 101, a connecting frame 102, a rotating frame 103, a mounting head 104, a spray nozzle 105, a spray pipe 106, a torsion spring 107, a connecting rope 108, a rotating buckle 109, a locking block 110, a first spring 111, a pull rod 112, an insert rod 114, a second spring 115, a U-shaped block 116, a slider 118, a wire brush 119, multiple clamping rings 120, and a limiting plate 121. The handle 101 has a rotating groove 113; the connecting frame 102 has multiple fixing holes 117; and the limiting plate 121 has a through hole 122.

[0023] The aforementioned solution addresses the problems of high replacement and maintenance costs and difficulties in corrosion prevention and rust removal when existing fan impellers are worn, aged, and rusted. Understandably, the aforementioned solution can quickly spray rust remover and anti-corrosion agent on both the surface and back of the impeller without completely disassembling the fan, making the process simple, fast, low-cost, and efficient.

[0024] In this embodiment, the connecting frame 102 is disposed on the side of the grip 101; the rotating frame 103 is rotatably disposed on the connecting frame 102; the mounting head 104 is fixed on the rotating frame 103; the spray nozzle 105 and the mounting head 104 are threadedly connected; the spray tube 106 communicates with the spray nozzle 105; the torsion spring 107 is fixedly connected to the rotating frame 103 and to the connecting frame 102; the rotating buckle 109 is rotatably disposed in the rotating groove 113 of the grip 101; the connecting rope 1... 08 is fixedly connected to the rotating frame 103 and the rotating buckle 109; the locking block 110 is slidably disposed in the handle 101; the first spring 111 is fixedly connected to the locking block 110 and the handle 101; the pull rod 112 is fixed to the side of the locking block 110 away from the handle 101; the handle 101 is used for easy gripping by cleaning personnel; the connecting frame 102 has a small diameter and is relatively long, making it easy to extend into the fan; the rotating frame 103 is used to connect the mounting head 104, and Under the action of the torsion spring 107, it remains in the same straight line as the connecting frame 102; the mounting head 104 is used to install the spray head 105, and the spray head 105 is connected to the rust remover or corrosion inhibitor through the spray tube 106. The spray can be quickly disassembled and easily replaced; the connecting rope 108 is used to pull the rotating frame 103 to deflect it at a certain angle, so as to facilitate spraying onto the back of the fan impeller; by turning the rotating buckle 109, the angle of the rotating frame 103 can be directly adjusted from the handle 101, and the locking block 110 is located on the first spring 11 The device keeps the pop-out mechanism in place, locking the rotating buckle 109 in place. When adjusting the rotating buckle 109, the locking block 110 can be pulled back using the pull rod 112. This device allows cleaning personnel to directly enter the fan from the inspection window or ventilation window and spray rust remover and anti-corrosion agent on both the impeller surface and back. Furthermore, this device has a simple structure, low manufacturing cost, and does not require complete disassembly of the fan. It is simple, quick, low-cost, and efficient, thus solving the problems of high replacement and maintenance costs and difficulty in corrosion prevention and rust removal after existing fan impellers wear, age, and rust.

[0025] The insertion rod 114 is disposed in the handle 101; the second spring 115 is fixedly connected to the insertion rod 114 and the handle 101; the U-shaped block 116 is fixedly connected to the handle 101 and rotatably connected to the connecting frame 102; the insertion rod 114 pops out under the action of the second spring 115 and can be inserted into the fixing hole 117 of the connecting frame 102. The connecting frame 102 has the fixing hole 117 on both the bottom and side sides. When inserted into the bottom side, the connecting frame 102 and the handle 101 are in a straight line. Pulling back the insertion rod 114 rotates the connecting frame 102 90° relative to the U-shaped block 116, and then inserts the insertion rod 114 into the fixing hole 117, so that the connecting frame 102 and the handle 101 are perpendicular, thereby making the connecting frame 102 more flexible and able to spray to more concealed positions inside the fan.

[0026] Secondly, the slider 118 and the insertion rod 114 are fixedly connected and slidably connected to the grip 101; the slider 118 is used to pull the insertion rod 114 from the outside for easy adjustment.

[0027] Furthermore, the wire brush 119 is fixed to one side of the mounting head 104; the wire brush 119 is located on the outermost side of the mounting head 104, and can directly brush the fan impeller, and directly brush away rust after spraying rust remover and anti-corrosion agent.

[0028] Then, a plurality of clamping rings 120 are disposed above the connecting frame 102; the plurality of clamping rings 120 are arranged on the connecting frame 102 to assist in fixing the spray pipe 106 and prevent it from getting stuck in the impeller.

[0029] Finally, the limiting plate 121 is fixed to one side of the connecting frame 102; the limiting plate 121 is used to limit the maximum rotation angle of the rotating frame 103, and the through hole 122 of the limiting plate 121 is used to limit the connecting rope 108 to prevent the connecting rope 108 from getting stuck on the impeller.

[0030] During use, the handle 101 is for easy gripping by cleaning personnel; the connecting frame 102 has a small diameter and is relatively long, facilitating insertion into the blower; the rotating frame 103 connects to the mounting head 104 and, under the action of the torsion spring 107, remains aligned with the connecting frame 102; the mounting head 104 mounts the spray nozzle 105, which is connected to the rust remover or corrosion inhibitor via the spray tube 106; the spray nozzle can be quickly disassembled for easy replacement; the connecting rope 108 pulls the rotating frame 103, causing it to deflect at a certain angle, facilitating spraying onto the back of the blower impeller; turning the rotating... The rotating buckle 109 allows the angle of the rotating frame 103 to be adjusted directly from the handle 101. The locking block 110, under the action of the first spring 111, remains popped out, locking the rotating buckle 109 in place. To adjust the rotating buckle 109, the locking block 110 can be pulled back using the pull rod 112. The insertion rod 114 pops out under the action of the second spring 115 and can be inserted into the fixing hole 117 of the connecting frame 102. The connecting frame 102 has fixing holes 117 on both its bottom and side sides. When inserted into the bottom side, the connecting frame 102 and the handle 101 are in a straight line. Pulling it back... The insertion rod 114 rotates the connecting frame 102 90° relative to the U-shaped block 116, and then inserts the insertion rod 114 into the fixing hole 117. This allows the connecting frame 102 to be perpendicular to the handle 101, making the connecting frame 102 more flexible and able to spray more concealed positions inside the fan. The slider 118 is used to pull the insertion rod 114 from the outside for easy adjustment. The wire brush 119 is located on the outermost side of the mounting head 104 and can directly brush the fan impeller, removing rust and corrosion after spraying the rust remover and anti-corrosion agent. Multiple clamping rings 120 are arranged on the connecting frame 102 to assist in fixing the device. The spray pipe 106 is designed to prevent it from getting stuck in the impeller; the limiting plate 121 is used to limit the maximum rotation angle of the rotating frame 103, and the through hole 122 of the limiting plate 121 is used to limit the connecting rope 108, preventing the connecting rope 108 from getting stuck in the impeller; this device allows cleaning personnel to directly enter the fan from the inspection window or ventilation window and spray rust remover and anti-corrosion agent on both the surface and back of the impeller; at the same time, this device has a simple structure, low manufacturing cost, and does not require complete disassembly of the fan, making the process simple, quick, low-cost, and efficient, thus solving the problem of high replacement and maintenance costs and difficulty in corrosion prevention and rust removal after existing fan impellers wear, age, and rust.

[0031] For the second embodiment, please refer to... Figure 5 , Figure 5 This is a flowchart of a method for corrosion protection of a wind turbine impeller according to the second embodiment of the present invention.

[0032] Based on the first embodiment, the present invention provides a method for anti-corrosion treatment of a fan impeller, which employs the aforementioned anti-corrosion treatment device for a fan impeller, including: opening the fan inspection window or the fan casing to expose the impeller; this device can perform anti-corrosion and rust removal treatment on the fan impeller without disassembling the entire device.

[0033] Connect the spray tube 106 to the rust remover bottle and the corrosion inhibitor bottle, and then install the spray head 105 onto the mounting head 104 to complete the device assembly; the spray head 105 and the spray tube 106 can be replaced according to the rust removal and corrosion prevention treatment to avoid clogging caused by mixing them.

[0034] One side of the nozzle 105 and the connecting frame 102 are inserted into the fan through the fan inspection window to perform rust removal and anti-corrosion spraying on the outer surface of the impeller; this step is to spray the outer surface of the impeller.

[0035] Pull the rotating buckle 109 to pull back the connecting rope 108, causing the rotating frame 103 to deflect 90°. Then, spray the back of the impeller from below or above the side to remove rust and prevent corrosion, thus completing the first anti-corrosion treatment. This step sprays the inner surface of the impeller to complete the overall anti-corrosion and rust removal treatment of the impeller.

[0036] Third embodiment, please refer to Figure 5 , Figure 5 This is a schematic diagram of a corrosion protection device for a wind turbine impeller according to the third embodiment of the present invention.

[0037] Based on the second embodiment, the anti-corrosion treatment device for wind turbine impellers of the present invention further includes a reflector 201, a transparent film 202, and a miniature lamp 203.

[0038] The radiating mirror is fixed below the mounting head 104; the transparent film 202 is disposed on the reflector 201; the reflector 201 is used to facilitate observation of the back of the impeller and to facilitate targeted spraying of severely corroded areas; the transparent film 202 is used to protect the reflector 201 and facilitates multiple uses.

[0039] The miniature lamp 203 is fixed above the rotating frame 103; the miniature lamp 203 is used to provide a light source inside, making it easier to observe the internal corrosion and rust.

[0040] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A device for corrosion protection of wind turbine impellers, characterized in that, The device includes a handle, a connecting frame, a rotating frame, a mounting head, a spray nozzle, a spray tube, a torsion spring, a connecting rope, a rotating buckle, a locking block, a first spring, and a pull rod. The handle has a rotating groove; the connecting frame is disposed on the side of the handle; the rotating frame is rotatably disposed on the connecting frame; the mounting head is fixed on the rotating frame; the spray nozzle and the mounting head are threadedly connected; the spray tube communicates with the spray nozzle; the torsion spring is fixedly connected to the rotating frame and also to the connecting frame; the rotating buckle is rotatably disposed in the rotating groove of the handle; the connecting rope is fixedly connected to the rotating frame and also to the rotating buckle; the locking block is slidably disposed in the handle; the first spring is fixedly connected to the locking block and also to the handle; the pull rod is fixed to the side of the locking block away from the handle. By flipping the rotating buckle, the angle of the rotating frame can be adjusted directly from the handle. The locking block, under the action of the first spring, remains popped out and locks the rotating buckle in place. The device for anti-corrosion treatment of wind turbine impellers further includes a plug rod, a second spring, a U-shaped block, a slider, and a wire brush. The connecting frame has fixing holes on its bottom and sides. The plug rod is disposed in the handle. The second spring is fixedly connected to the plug rod and also to the handle. The U-shaped block is fixedly connected to the handle and rotatably connected to the connecting frame. The slider is fixedly connected to the plug rod and slidably connected to the handle. The wire brush is fixed to one side of the mounting head. When the insert rod is inserted into the fixing hole at the bottom side of the connecting frame, the connecting frame and the handle are in a straight line. Pull the insert rod back, rotate the connecting frame 90° relative to the U-shaped block, and then insert the insert rod into the fixing hole on the side of the connecting frame. The connecting frame and the handle are perpendicular.

2. The anti-corrosion treatment device for wind turbine impellers as described in claim 1, characterized in that, The device for anti-corrosion treatment of wind turbine impellers also includes multiple clamping rings, which are arranged above the connecting frame.

3. The anti-corrosion treatment device for wind turbine impellers as described in claim 2, characterized in that, The device for anti-corrosion treatment of wind turbine impellers further includes a limiting plate with a through hole, the limiting plate being fixed to one side of the connecting frame; the through hole of the limiting plate is used to restrict the connecting rope.

4. A method for corrosion protection of wind turbine impellers, employing a corrosion protection device for wind turbine impellers as described in any one of claims 1 to 3, characterized in that, include: Open the fan inspection window or fan casing to expose the impeller; Connect the spray pipe to the rust remover bottle and the corrosion inhibitor bottle, and then install the spray nozzle onto the mounting head to complete the device assembly; One side of the nozzle and the connecting frame are inserted into the fan through the fan inspection window to perform rust removal and anti-corrosion spraying on the outer surface of the impeller. Pull the rotating buckle to pull back the connecting rope, causing the rotating frame to deflect 90°. Then, spray the back of the impeller from below or above the side to remove rust and prevent corrosion, thus completing the first anti-corrosion treatment.

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