Cleaning device for fan unit protecting net, fan unit and transformer

Abstract

The utility model relates to a cleaning device for a fan unit protection net, a fan unit and a transformer, the cleaning device is used for being arranged on the fan unit, the cleaning device comprises a fixing seat, the fixing seat is used for extending in the length direction of the fan unit protection net and is movably arranged in the height direction of the fan unit protection net, and the fixing seat is used for fixing the fan unit protection net; the two ends of the fixing base are used for being connected to the two sides of the fan unit protection net in the length direction. The cleaning part comprises a cleaning brush extending in the length direction of the fan unit protecting net, the two ends of the cleaning brush are connected with the two ends of the fixing base respectively, and the cleaning brush is used for making contact with the fan unit protecting net; and the lifting part is connected with the fixed seat and can drive the fixed seat to move in the height direction of the fan unit protecting net. The fixing base is driven by the lifting part, the fan unit protecting net can be comprehensively cleaned through single-time lifting, sweeping is rapid, automatic sweeping can be achieved without repeated manual work, and risks occurring in the sweeping process are reduced.

Description

Technical Field

[0001] This disclosure relates to transformer cleaning technology, and more specifically, to a cleaning device for a wind turbine unit guardrail, a wind turbine unit, and a transformer. Background Technology

[0002] Transformers are typically used in environments exposed to the elements and are greatly affected by environmental factors. For example, in spring, strong winds from the transformer's cooling fans can cause large amounts of willow catkins to enter the transformer's radiators and adhere to their internal surfaces, severely impacting the transformer's heat dissipation and ventilation, and in severe cases, even affecting the normal operation of the equipment. Daily cleaning is necessary. Because transformers are high-voltage, live-line equipment, daily live-line maintenance requires specialized tools and carries significant risks. Frequent cleaning and monitoring require several people, which is not only time-consuming and labor-intensive, but also exponentially increases the risks in adverse weather conditions, posing a significant safety hazard. Current technologies for cleaning transformer protective netting rely on manual labor using cleaning equipment carried on the back, failing to completely solve the problem of repetitive manual labor. Since large transformers in real-world applications are typically over 5 meters tall with large protective netting areas, and the cleaning equipment carried by hand is relatively small, the aforementioned designs can only clean lower areas of dirt and are unsuitable for large transformer coolers in power plants. Furthermore, they cannot achieve rapid or automatic cleaning functions. Utility Model Content

[0003] The purpose of this disclosure is to provide a cleaning device for wind turbine unit guardrails, wind turbine units, and transformers to solve the problems of the prior art being unable to quickly clean large areas and being unable to automatically clean.

[0004] To achieve the above objectives, this disclosure provides a cleaning device for a wind turbine unit protective screen, the cleaning device being installed on the wind turbine unit, the cleaning device comprising:

[0005] A fixing base is provided, which extends along the length of the wind turbine unit guardrail and is movably disposed along the height of the wind turbine unit guardrail, and the two ends of the fixing base are used to connect to both sides of the wind turbine unit guardrail along its length.

[0006] The cleaning section includes a cleaning brush extending along the length of the fan unit guardrail, with both ends of the cleaning brush connected to both ends of the mounting base, and the cleaning brush is used to contact the fan unit guardrail; and

[0007] The lifting unit is connected to the fixed base and can drive the fixed base to move along the height direction of the fan unit's protective net.

[0008] Optionally, the cleaning unit includes:

[0009] A roller brush shaft, the cleaning brush covering the outside of the roller brush shaft, the roller brush shaft being connected to the fixed base and rotating relative to the fixed base; and

[0010] A first power component is mounted on the fixed base and is capable of driving the brush shaft to rotate.

[0011] Optionally, the cleaning unit further includes a first transmission member, which is connected to the first power member and the roller brush shaft respectively. The first transmission member includes:

[0012] The first gear is connected to the output end of the first power component; and

[0013] The second gear is connected to one end of the brush shaft, and the first gear and the second gear mesh with each other.

[0014] Optionally, the lifting unit includes:

[0015] The second transmission component is fixedly mounted on the fan unit. The second transmission component is located at the edge of the fan unit's protective net along its length and extends along the height of the fan unit's protective net.

[0016] The second power component is connected to the fixed base; and

[0017] The third transmission component is connected to the second power component and the second transmission component respectively, and is used to enable the second power component to drive the cleaning part to move along the height direction of the fan unit guard net.

[0018] Optionally, the second transmission component comprises two racks, with the two racks located on opposite sides of the length of the wind turbine unit's protective mesh. The third transmission component includes:

[0019] The third gear is connected to the output end of the second power component;

[0020] Two fourth gears, one of which meshes with the third gear and a rack respectively, and the other fourth gear meshes with the other rack; and

[0021] A drive shaft is connected to the fixed base and rotates relative to the fixed base. Two fourth gears are connected to each end of the drive shaft.

[0022] Optionally, the mounting base is a protective cover, which covers the cleaning brush.

[0023] Optionally, the fixed base is also provided with a limit switch to limit the movement path of the lifting part.

[0024] According to a second aspect of this disclosure, a fan unit is provided, the fan unit comprising:

[0025] Two racks are arranged at an interval;

[0026] A wind turbine unit protective net, wherein the two ends of the wind turbine unit protective net along its length are respectively installed on the two frames;

[0027] Slides, the slides being respectively disposed on the frame; and

[0028] The cleaning device for the wind turbine unit guardrail described above is mounted on the frame. The fixed base has movable frames at both ends, and the movable frames have sliders at both ends, with the sliders cooperating with the sliding grooves.

[0029] According to a third aspect of this disclosure, a transformer is provided, the transformer comprising:

[0030] Multiple of the aforementioned wind turbine units; and

[0031] A controller, which is connected to multiple cleaning devices.

[0032] The above technical solution involves installing cleaning brushes extending along the length of the wind turbine unit's protective mesh. A lifting mechanism drives a fixed base, enabling a single lift to thoroughly clean the mesh. This rapid and automated cleaning eliminates the need for repetitive manual labor, reducing the risks associated with the cleaning process. Furthermore, the lifting mechanism allows for cleaning of high areas inaccessible to manual labor, making it suitable for large transformer coolers exceeding 3 meters in height within power plants.

[0033] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of a fan unit according to one embodiment of the present disclosure.

[0036] Figure 2 This is a schematic diagram of a fan unit according to another embodiment of this disclosure.

[0037] Figure 3This is a side view of the cleaning section in a cleaning device for a transformer guardrail according to one embodiment of the present disclosure.

[0038] Explanation of reference numerals in the attached figures

[0039] 1-Fixed base; 11-Moving frame; 111-Slider; 2-Fan unit guard net; 31-Cleaning brush; 32-Roller brush shaft; 33-First power component; 41-Second transmission component; 42-Second power component; 431-Third gear; 432-Fourth gear; 433-Transmission shaft; 5-Frame; 6-Slide groove. Detailed Implementation

[0040] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0041] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined in relation to the outline of the corresponding components. The terms "first," "second," etc., are used to distinguish different components and are not sequential or significant. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0042] According to one embodiment of this disclosure, such as Figures 1 to 3 As shown, a cleaning device for a fan unit guardrail can be provided. The cleaning device is installed on the fan unit and includes a mounting base 1, a cleaning section, and a lifting section. The mounting base 1 extends along the length of the fan unit guardrail 2 and is movably installed along the height of the fan unit guardrail 2. Both ends of the mounting base 1 are connected to both sides of the fan unit guardrail 2 along its length. The cleaning section includes a cleaning brush 31 extending along the length of the fan unit guardrail 2. The length of the cleaning brush 31 is the same as the length of the fan unit guardrail 2. Both ends of the cleaning brush 31 are connected to both ends of the mounting base 1 and are used to contact the fan unit guardrail 2. The lifting section is connected to the mounting base 1 and can drive the mounting base 1 to move along the height of the fan unit guardrail 2. It should be noted that the fan unit guardrail 2 is a mesh structure vertically placed in front of the radiator fins of the fan unit, with its height direction being vertical and its length direction being its horizontal extension direction, as shown in the figure. Figure 1 The direction indicated by the symbol in the middle.

[0043] Through the above technical solution, a cleaning brush 31 extending along the length of the wind turbine unit protective net 2 is installed. Driven by a lifting mechanism, the fixed base 1 can be raised and lowered simultaneously to thoroughly clean the wind turbine unit protective net 2. This method is fast, automatic, and eliminates the need for repetitive manual labor, reducing the risks associated with the cleaning process. Furthermore, the lifting mechanism allows for cleaning of high areas inaccessible to manual labor, making it suitable for large transformer coolers exceeding 3 meters in height within power plants.

[0044] Furthermore, such as Figures 1 to 3 As shown, the cleaning unit may include a roller brush shaft 32 and a first power component 33. The cleaning brush 31 may cover the outside of the roller brush shaft 32. The roller brush shaft 32 is connected to the fixed base 1 and rotates relative to the fixed base 1. The roller brush shaft 32 can be connected to the fixed base 1 via a bearing seat or via a gear and sprocket structure; this disclosure does not limit the connection. The first power component 33 is mounted on the fixed base 1 and can drive the roller brush shaft 32 to rotate. The first power component 33 may be a motor. The direction of the bristles of the cleaning brush 31 may form an angle of 0-45° with the tangential direction of the roller brush shaft 32, so that when the roller brush shaft 32 drives the cleaning brush 31 to rotate, the bristles can better clean the willow catkins and other dirt adhering to the fan unit guardrail 2.

[0045] Furthermore, such as Figures 1 to 3 As shown, the cleaning unit may further include a first transmission component, which is connected to the first power component 33 and the roller brush shaft 32 respectively, so as to change the installation direction and position of the first power component 33 and prevent the overall length of the cleaning unit from being too long and interfering with other structures of the fan unit. The first transmission component can be a reducer or a gear transmission structure, and the transmission ratio can be set as needed to adjust the rotation speed of the roller brush shaft 32.

[0046] Furthermore, such as Figures 1 to 3 As shown, the first transmission component may include a first gear and a second gear. The first gear is connected to the output end of the first power component 33, and the second gear is connected to one end of the brush shaft 32, with the two gears meshing with each other.

[0047] According to one embodiment of this disclosure, such as Figure 1 and Figure 2As shown, the lifting unit may include a second transmission component 41, a second power component 42, and a third transmission component. The second transmission component 41 can be fixedly mounted on the fan unit and can be located at the edge of the fan unit's protective net 2 along its length. The second transmission component 41 extends along the height direction of the fan unit's protective net 2. The second power component 42 is connected to the fixed base 1. The third transmission component is connected to both the second power component 42 and the second transmission component 41, enabling the second power component 42 to drive the cleaning unit to move along the height direction of the fan unit's protective net 2. The second power component 42 can be a motor, a hydraulic cylinder, or a ball screw structure. The second transmission component 41 and the third transmission component can be a gear and rack structure or a wire rope pulley structure. This disclosure does not limit the specific configuration. The second power component 42 can be arranged in the same direction as the extension direction of the fixed base 1 on the fixed base 1, or it can be arranged perpendicular to the direction of the fixed base 1. This disclosure does not limit the specific configuration.

[0048] Furthermore, such as Figure 1 and Figure 2 As shown, the second transmission component 41 can be two racks, and the two racks are located on both sides of the length direction of the wind turbine unit guard 2. The third transmission component can include a third gear 431, two fourth gears 432 and a transmission shaft 433. The third gear 431 is connected to the output end of the second power component 42. One of the fourth gears 432 can mesh with the third gear 431 and one rack respectively, and the other fourth gear 432 can mesh with the other rack. The two fourth gears 432 can be connected to the two ends of the transmission shaft 433 respectively. The transmission shaft 433 is connected to the fixed base 1 and rotates relative to the fixed base 1. The transmission shaft 433 can be connected to the fixed base 1 through a bearing seat or through a gear and sprocket structure. This disclosure does not limit this. The second power component 42 can drive the third gear 431 to rotate. The third gear 431 meshes with a fourth gear 432. At this time, the fourth gear 432 can drive the fourth gear 432 at the other end to rotate synchronously through the transmission shaft 433. The two fourth gears 432 can move along the rack by meshing with the rack, so as to drive the fixed seat 1 to move along the height direction of the wind turbine unit guard net 2.

[0049] According to one embodiment of this disclosure, such as Figure 3 As shown, the mounting base 1 is a protective cover that covers the cleaning brush 31. The protective cover can be a U-shaped structure and fastens to the outside of the cleaning brush 31. Simultaneously, the first power component 33 and the second power component 42 mentioned above can also be integrated into the outer side of the bottom end of the U-shaped structure. The roller brush shaft 32 and the drive shaft 433 can be fastened inside the U-shaped structure. This design protects the cleaning brush 31 while improving the overall integration of the cleaning device and reducing space occupation.

[0050] According to one embodiment of this disclosure, a limit switch is also provided on the fixed base 1 to limit the movement path of the lifting part. The limit switch can be an electrical switch that records the travel distance. When the lifting part moves the cleaning part to the top of the fan unit guard net 2, the limit switch can limit it to prevent it from moving further upward, and can feed the signal back to the controller. The controller can control the lifting part to move in the opposite direction. When the cleaning brush 31 covers the roller brush shaft 32, the controller can also simultaneously control the roller brush shaft 32 to rotate in the opposite direction to prevent the willow catkins removed from the fan unit guard net 2 by the cleaning brush 31 from re-adhering to the fan unit guard net 2.

[0051] According to a second aspect of this disclosure, a fan unit is provided, which may include a fan unit guard 2, two frames 5, a slide 6, and the aforementioned cleaning device for the fan unit guard. The two frames 5 may be spaced apart, and the two ends of the fan unit guard 2 along its length may be respectively mounted on the two frames 5. The slide 6 is respectively mounted on the frames 5. The cleaning device may be mounted on the frames 5. Movable frames 11 are formed at both ends of the fixed base 1. The two ends of the fixed base 1 may be located at both ends along the length of the fan unit guard 2. When frames 5 are also provided at both ends along the height of the fan unit guard 2, the two ends may also be located at both ends along the length of the fan unit guard 2; this disclosure does not limit this. When the movable frames 11 are located at the two ends of the fixed base 1 along the length of the fan unit guard 2, sliders 111 are formed at both ends of the movable frames 11, and the sliders 111 cooperate with the slide 6. When the fixed base 1 is the protective cover mentioned above, the structure of the single-sided movable frame 11 may include two L-shaped rod-shaped structures extending from the side wall of the protective cover, and the other ends of the two L-shaped rod-shaped structures are connected to a long strip-shaped structure, with sliders 111 formed at both ends of the long strip-shaped structure.

[0052] In addition, a drag chain cable and its corresponding cable tray can be installed on one side of the fan unit. The combination of the drag chain cable and the cable tray can make the movement of the lifting unit more stable. One end of the drag chain cable can be connected to the controller mentioned below, and the other end can be connected to the first power component 33, the second power component 42 and the limit switch mentioned above. While the controller can control and adjust the lifting unit, the cleaning unit and the limit switch, it can also adjust the other two according to the real-time status of one of them.

[0053] According to a third aspect of this disclosure, a transformer is provided, which includes a plurality of the aforementioned fan units and a controller. The controller can be connected to a plurality of cleaning devices so that the cleaning devices on the plurality of fan units can be started and stopped simultaneously. The controller can also operate each cleaning device individually. When the degree of dirtiness of the fan unit guards 2 on different fan units of the same transformer is different, different cleaning devices can be set separately to set the cleaning speed of the cleaning part or the moving speed of the lifting part, etc., according to the different fan unit guards 2.

[0054] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0056] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A cleaning device for a wind turbine unit protective screen, characterized in that, The cleaning device is used to install on the fan unit, and the cleaning device includes: A fixing base is provided, which extends along the length of the wind turbine unit guardrail and is movably disposed along the height of the wind turbine unit guardrail, and the two ends of the fixing base are used to connect to both sides of the wind turbine unit guardrail along its length. The cleaning section includes a cleaning brush extending along the length of the fan unit guardrail, with both ends of the cleaning brush connected to both ends of the mounting base, and the cleaning brush is used to contact the fan unit guardrail; and The lifting unit is connected to the fixed base and can drive the fixed base to move along the height direction of the fan unit guardrail.

2. The cleaning device for the protective screen of a wind turbine unit according to claim 1, characterized in that, The cleaning unit includes: A roller brush shaft, the cleaning brush covering the outside of the roller brush shaft, the roller brush shaft being connected to the fixed base and rotating relative to the fixed base; and A first power component is mounted on the fixed base and is capable of driving the brush shaft to rotate.

3. The cleaning device for the protective screen of a wind turbine unit according to claim 2, characterized in that, The cleaning unit further includes a first transmission component, which is connected to the first power component and the roller brush shaft respectively. The first transmission component includes: The first gear is connected to the output end of the first power component; and The second gear is connected to one end of the brush shaft, and the first gear and the second gear mesh with each other.

4. The cleaning device for the protective screen of a wind turbine unit according to claim 1, characterized in that, The lifting unit includes: The second transmission component is fixedly mounted on the fan unit. The second transmission component is located at the edge of the fan unit's protective net along its length and extends along the height of the fan unit's protective net. The second power component is connected to the fixed base; and The third transmission component is connected to the second power component and the second transmission component respectively, and is used to enable the second power component to drive the cleaning part to move along the height direction of the fan unit guard net.

5. The cleaning device for the protective screen of a wind turbine unit according to claim 4, characterized in that, The second transmission component consists of two racks, with the two racks located on opposite sides of the length of the wind turbine unit's protective mesh. The third transmission component includes: The third gear is connected to the output end of the second power component; Two fourth gears, one of which meshes with the third gear and a rack respectively, and the other fourth gear meshes with the other rack; and A drive shaft is connected to the fixed base and rotates relative to the fixed base. Two fourth gears are connected to each end of the drive shaft.

6. The cleaning device for the protective screen of a wind turbine unit according to claim 1, characterized in that, The mounting base is a protective cover, which is placed over the cleaning brush.

7. The cleaning device for the protective screen of a wind turbine unit according to claim 1, characterized in that, The fixed base is also equipped with a limit switch to limit the movement path of the lifting part.

8. A fan unit, characterized in that, The fan unit includes: Two racks are arranged at an interval; A wind turbine unit protective net, wherein the two ends of the wind turbine unit protective net along its length are respectively installed on the two frames; Slides, the slides being respectively disposed on the frame; and The cleaning device for the wind turbine unit guardrail according to any one of claims 1-7, wherein the cleaning device is disposed on the frame, and a movable frame is formed at both ends of the fixed base, and a slider is formed at both ends of the movable frame, and the slider cooperates with the slide groove.

9. A transformer, characterized in that, The transformer includes: The fan unit as described in claims 8; and A controller, which is connected to multiple cleaning devices.

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