Automatic catkin cleaning device for transformer cooler

Abstract

The invention relates to an automatic catkin cleaning device for a transformer cooler, and provides a mechatronics solution for solving the problems that existing catkin cleaning depends on manpower, efficiency is low, coverage is incomplete, and secondary pollution is caused. The device comprises a transformer cooler main body and an automatic cleaning device, an electric rolling brush mechanism is cooperatively driven through a first electric sliding table and a second electric sliding table which are distributed in parallel, and a 1200 * 3000mm core area is covered; the design that the anti-static nylon fiber brush is combined with the rolling brush with the diameter of 210 mm is adopted, the dust screen is automatically cleaned in the whole process, the cleaning efficiency is improved, meanwhile, workers do not need to climb or make close contact with electrified equipment, and the electric shock risk in traditional manual cleaning is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of transformer cooler cleaning, in particular to an automatic catkin cleaning device for a transformer cooler. Background Art

[0002] As the core equipment of the power system, the cooler of the transformer is exposed to the outdoor environment for a long time. Especially in the season when poplar and willow catkins are prevalent, catkins are easy to adhere to the dustproof net and the surface of the heat sink. The traditional cleaning method has the following pain points:

[0003] Manual cleaning is inefficient: it requires climbing equipment after a power outage, a single operation takes 2-4 hours, and there is a risk of falling from a height or electric shock;

[0004] Limitations of water washing: High-pressure water guns can easily cause metal parts to rust, and they are prone to freezing in the northern winter. In addition, the water consumption per wash is 1-2 tons, which does not meet the requirements of water conservation.

[0005] Insufficient coverage of fixed devices: the existing mechanical cleaning mechanism has a short stroke (generally <2 meters), cannot adapt to large coolers (1200×3600mm), and the cleaning rate of the middle area is less than 60%;

[0006] Hidden danger of secondary pollution: Traditional brushes are prone to generate static electricity and absorb catkins. After cleaning, 30% of the catkins will float to surrounding equipment, posing a fire risk.

[0007] The above defects lead to a decrease in the heat dissipation efficiency of the cooler, which seriously threatens the insulation life of the transformer. The present invention solves the above industry problems through electromechanical coordinated control and modular design. Summary of the invention

[0008] In order to solve the problems of the prior art, the present invention provides a device for automatically cleaning catkins of a transformer cooler.

[0009] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a transformer cooler automatic catkin cleaning device, comprising a transformer cooler body and an automatic cleaning device, one side of the transformer cooler body is fixedly connected with a dustproof net, and one side of the transformer cooler body is fixedly connected with the automatic cleaning device;

[0010] The automatic cleaning device consists of a first electric slide, a second electric slide, a motor and an electric roller brush mechanism. The first electric slide and the second electric slide are distributed in parallel and are respectively fixedly connected to the transformer cooler body. One end of the first electric slide is fixedly connected to the motor, and the output end of the motor is transmission-connected to the first electric slide. The output end of the motor is fixedly connected to a motor connecting rod, and the motor connecting rod is transmission-connected to the second electric slide. The side of the first electric slide is transmission-connected to the first slide, and the side of the second electric slide is transmission-connected to the second slide. The first slide and the second slide are fixedly connected to the electric roller brush mechanism, and the electric roller brush mechanism is energized and rotates to further clean the dust net.

[0011] In this application, the first electric slide and the second electric slide are distributed in parallel and are fixedly connected to the transformer cooler body. According to actual measurements, the size of the transformer cooler is approximately length × height = 1320 × 3600 mm. In order to avoid upper and lower interference and clean the main area of ​​the middle 1200 × 3000 mm, the effective stroke of the first electric slide and the second electric slide is planned to be 3 meters, and the slide is expected to bear 15 kg to adapt to the cleaning area in the middle of one side of the transformer cooler body;

[0012] One end of the first electric slide is fixedly connected to the motor, the output end of the motor is transmission-connected to the first electric slide, the output end of the motor is also fixedly connected to a motor connecting rod, and the motor connecting rod is transmission-connected to the second electric slide, thereby realizing the coordinated operation of the two electric slides;

[0013] The first electric slide is connected to the first slide seat on the side of the first electric slide, and the second electric slide is connected to the second slide seat on the side of the second electric slide. The electric roller brush mechanism is fixedly connected between the first slide seat and the second slide seat. The electric roller brush mechanism rotates after being powered on to clean the dustproof net.

[0014] Preferably, one side of the first electric slide and the second electric slide are both fixedly connected to a slide bracket by bolts, and the slide bracket is fixedly connected to the transformer cooler body by bolts.

[0015] Preferably, a fan is provided on one side of the transformer cooler body, a pipeline is provided on the outside of the transformer cooler body, and main body brackets are fixedly connected to both sides of the transformer cooler body for supporting and fixing the transformer cooler body as a whole.

[0016] Preferably, the electric roller brush mechanism is composed of a rotating motor, a glue injection layer and a brush. The brush and the glue injection layer are fixedly connected by bolts and can be disassembled and replaced during later maintenance. The brush is made of antistatic nylon fiber.

[0017] Preferably, the electric roller brush mechanism has a diameter of 210 mm, which is composed of a 60 mm motor diameter, a 30 mm glue injection radius on both sides and a 45 mm single-side brush length.

[0018] Preferably, the effective stroke of the first electric slide and the second electric slide is 3 meters, and the load-bearing capacity is not less than 15 kg, which is suitable for the cleaning area of ​​1200×3000 mm in the middle of one side of the transformer cooler body.

[0019] Preferably, a drag chain is also provided on one side of the first electric slide, which adopts a segmented fixed structure, with both ends respectively connected to the top and bottom of the transformer cooler body, and the cable path is synchronized with the movement trajectory of the first slide.

[0020] Preferably, a power box is also included to control the start and stop of the motor and the transformer cooler body. The power box has 8 circuit breakers inside, which respectively control the motors and electric roller brushes of the electric slides of the 4 groups of coolers, and the power cable is quickly connected by an air plug.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention realizes full-process automatic cleaning of the dustproof net through the coordinated movement of the first electric slide and the second electric slide, combined with the rotation of the electric roller brush mechanism, thereby improving the cleaning efficiency. At the same time, there is no need for manual climbing or close contact with live equipment, thus avoiding the risk of electric shock in traditional manual cleaning;

[0023] 2. Use anti-static nylon fiber brush and high-frequency cleaning at 1500 revolutions per minute to quickly peel off catkins and dust attached to the surface of the heat sink to prevent blockage and reduce heat dissipation efficiency; regular cleaning can reduce corrosion and scaling on the cooler surface, avoid abnormal transformer oil temperature due to poor heat dissipation, and extend the overall service life of the cooler and transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall front schematic diagram of the present invention.

[0025] Figure 2 It is an overall back schematic diagram of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the automatic cleaning device of the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the first electric slide and the second electric slide of the present invention.

[0028] Figure 5 It is a schematic diagram of the electric roller brush mechanism of the present invention.

[0029] Figure 6 It is a control circuit diagram of the present invention.

[0030] Figures 1 to 6In: 1. Transformer cooler body; 2. Automatic cleaning device; 11. Fan; 12. Pipeline; 13. Main body bracket; 14. Dust net; 21. First electric slide; 211. First slide seat; 22. Second electric slide; 221. Second slide seat; 23. Slide bracket; 24. Motor; 241. Motor connecting rod; 25. Electric roller brush mechanism; 251. Rotating motor; 252. Glue injection layer; 253. Brush. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 6 The transformer cooler automatic catkin cleaning device shown in the figure comprises a transformer cooler body 1 and an automatic cleaning device 2, one side of the transformer cooler body 1 is fixedly connected with a dustproof net 14, and one side of the transformer cooler body 1 is fixedly connected with the automatic cleaning device 2; the automatic cleaning device 2 is composed of a first electric slide 21, a second electric slide 22, a motor 24 and an electric roller brush mechanism 25, the first electric slide 21 and the second electric slide 22 are distributed in parallel and are respectively fixedly connected to the transformer cooler body 1, and one end of the first electric slide 21 is connected to the second electric slide 22. The motor 24 is fixedly connected, and the output end of the motor 24 is transmission-connected to the first electric slide 21. The output end of the motor 24 is fixedly connected to a motor connecting rod 241. The motor connecting rod 241 is transmission-connected to the second electric slide 22. The side of the first electric slide 21 is transmission-connected to the first slide 211. The side of the second electric slide 22 is transmission-connected to the second slide 221. The first slide 211 and the second slide 221 are fixedly connected to an electric roller brush mechanism 25. The electric roller brush mechanism 25 is energized and rotates to further clean the dustproof net 14.

[0033] One side of the first electric slide 21 and the second electric slide 22 are both fixedly connected with a slide bracket 23 by bolts, and the slide bracket 23 is fixedly connected with the transformer cooler body 1 by bolts. A fan 11 is arranged on one side of the transformer cooler body 1, and a pipeline 12 is arranged on the outside of the transformer cooler body 1. Both sides of the transformer cooler body 1 are fixedly connected with a main body bracket 13, which is used to support and fix the transformer cooler body 1 as a whole. The electric roller brush mechanism 25 is composed of a rotating motor 251, a glue injection layer 252 and a brush 253. The brush 253 is fixedly connected with the glue injection layer 252 by bolts, and can be disassembled and replaced during later maintenance. The brush 253 is made of antistatic nylon fiber.

[0034] The diameter of the electric roller brush mechanism 25 is 210mm, consisting of a 60mm motor diameter, a 30mm injection radius on both sides, and a 45mm single-side brush length. The effective stroke of the first electric slide 21 and the second electric slide 22 is 3 meters, and the load-bearing capacity is not less than 15kg, which is suitable for the cleaning area of ​​1200×3000mm in the middle of one side of the transformer cooler body 1. A drag chain is also provided on one side of the first electric slide 21, which adopts a segmented fixed structure, and the two ends are respectively connected to the top and bottom of the transformer cooler body 1, and the cable path is synchronized with the movement trajectory of the first slide 211.

[0035] A power supply box is also included for controlling the start and stop of the motor 24 and the transformer cooler body 1 .

[0036] Motor 24, model: a servo motor may be used, such as Panasonic A5 series servo motor, model MHMD022P1U.

[0037] Specifications: power 200W, rated speed 3000r / min, torque 0.64N·m, which can meet the requirements of driving the first electric slide 21 and the second electric slide 22 to run smoothly, and has high control accuracy and stability.

[0038] Rotating motor 251, model: brushless DC motor, such as one of the TBLDC-42BYG series produced by Shenzhen Topband Co., Ltd.

[0039] Specifications: motor diameter 60mm, rated power 100W, rated speed 1500r / min, output torque can satisfy the electric roller brush mechanism 25 to drive the brush 253 to rotate at a suitable speed to effectively clean the catkins.

[0040] The first electric slide 21 and the second electric slide 22

[0041] Model: HIWIN MG15C electric slide.

[0042] Specifications: effective stroke 3 meters, screw lead 10mm, load capacity up to 20kg (meeting the requirement of load-bearing capacity not less than 15kg), repeat positioning accuracy ±0.05mm, able to achieve smooth linear motion, driving the slide and electric roller brush mechanism 25 to slide up and down.

[0043] Power Box

[0044] Model: Customized non-standard power box, the brand can be assembled with Schneider Electric related accessories.

[0045] Specification:

[0046] Size: Designed according to the actual installation space, for example, length × width × height is 600mm × 400mm × 200mm.

[0047] Weight: Approx. 30kg.

[0048] Internal circuit breaker: Schneider C65N series miniature circuit breakers are used, with 8 circuit breakers, 4 of which are used to control the motors of the first electric slide 21 and the second electric slide 22 (one for each motor), 2 for the motor of the electric roller brush mechanism 25 (taking into account factors such as motor starting current, dual power supply control may be required), and the other 2 are spare or used for other possible auxiliary equipment.

[0049] Power connection method: The power cable is connected through an aviation plug. The aviation plug uses TE Connectivity's AMPLIMITE series, with a 16-core model, which can ensure the reliability and stability of the power connection.

[0050] Drag chain, model: igus E4.1 series drag chain.

[0051] Specifications: The inner height is determined according to the total outer diameter of the cable, with an inner height of 50 mm, an inner width of 80 mm, and a pitch of 50 mm, which is suitable for the cable laying requirements on one side of the first electric slide 21. It adopts a segmented fixed structure, with both ends respectively connected to the top and bottom of the transformer cooler body 1 to ensure that the cable path is synchronized with the moving trajectory of the first slide 211.

[0052] Slide bracket 23, model: custom-made, made of Q235 carbon steel.

[0053] Specifications: Designed according to the installation dimensions of the first electric slide 21 and the second electric slide 22, the length is 200 mm, the width is 150 mm, the thickness is 10 mm, and it is firmly connected to the electric slide and the transformer cooler body 1 by bolts.

[0054] Brush 253, model: customized, brand can be DuPont.

[0055] Specifications: The material is antistatic nylon fiber, the length of the single-sided brush is 45mm, the length of the roller brush is 1050mm, and it is fixedly connected to the injection layer 252 by bolts to ensure that the catkins can be effectively brushed off during the cleaning process and it is convenient for later maintenance and replacement.

[0056] Glue injection layer 252, model: customized, material is epoxy resin.

[0057] Specifications: The radius of the glue injection on both sides is 30 mm, which can firmly fix the brush 253 and ensure the overall structural strength and stability of the electric roller brush mechanism 25.

[0058] In summary, the present invention has the following working principle: the device is intended to efficiently clean the catkins attached to the transformer cooler to ensure the normal operation of the cooler. The following is its detailed working process:

[0059] This device is designed to efficiently clean the catkins attached to the transformer cooler to ensure the normal operation of the cooler. The following is its detailed working process:

[0060] 1. Startup Preparation

[0061] Check the power box: Before starting the automatic cleaning device, first check the power box next to the transformer. Check whether the appearance of the power box is damaged and whether the 8 circuit breakers inside are in a normal closed state to ensure that it can provide stable power to the entire cleaning device. The power box weighs about 30kg, and the power cable connected by the aviation plug should be firmly connected without any signs of looseness.

[0062] Appearance inspection of equipment: Perform an appearance inspection on each component of the automatic cleaning device to check whether the first electric slide 21, the second electric slide 22 and the slide bracket 23 connected to them are stable and whether the bolts are loose. Observe the electric roller brush mechanism 25 to ensure that the rotating motor 251, the injection layer 252 and the brush 253 are tightly connected, the brush has no obvious deformation or damage, and the material is antistatic nylon fiber, which can effectively reduce the adsorption of catkins. At the same time, check whether the drag chain is fixed on one side of the first electric slide 21, and whether its two ends are firmly connected to the top and bottom of the transformer cooler body 1 to ensure the stability of the cable during the cleaning process.

[0063] 2. Start operation

[0064] Turn on the power: close the corresponding circuit breaker of the power box to supply power to the motors of the first electric slide 21, the second electric slide 22 and the electric roller brush mechanism 25. At this time, the entire automatic cleaning device enters the standby state.

[0065] Slide start: The motor 24 starts, and its output end is connected to the first electric slide 21 to drive the first electric slide 21 to operate, and at the same time drives the second electric slide 22 to operate synchronously through the motor connecting rod 241. Since the effective stroke of the first electric slide 21 and the second electric slide 22 is 3 meters, the load-bearing capacity is not less than 15kg, and it can adapt to the cleaning area of ​​1200×3000mm in the middle of one side of the transformer cooler body 1, the two slides move in parallel, driving the first slide 211 and the second slide 221 connected to the side thereof to slide up and down smoothly.

[0066] Roller brush operation: The electric roller brush mechanism 25 fixed between the first slide 211 and the second slide 221 is started and rotates after power is turned on. The electric roller brush mechanism 25 has a diameter of 210mm, and is composed of a 60mm motor diameter, a 30mm injection radius on both sides, and a 45mm single-side brush length. The roller brush length is 1050mm. During the rotation process, the brush 253 uses its antistatic properties to brush off the catkins attached to the dustproof net 14 and the surface of the cooler. As the slide moves up and down, the roller brush can fully cover the set cleaning area, achieving efficient cleaning of one side of the transformer cooler body 1.

[0067] 3. Operation Monitoring

[0068] Real-time observation: During the operation of the automatic cleaning device, the staff needs to observe in real time on site. Check whether the electric slide moves smoothly, whether there is any jamming or abnormal shaking; pay attention to whether the rotation of the electric roller brush mechanism 25 is normal, whether the cleaning effect of the brush 253 is good, and if any part of the catkins is not thoroughly cleaned, record it in time for subsequent inspection and adjustment.

[0069] Cable status check: At the same time, pay attention to the status of the cables in the drag chain to ensure that the cables can be smoothly extended and retracted with the movement of the first slide 211, and that there are no problems such as the cables being stuck in the drag chain or the outer skin being worn, thereby ensuring the continuity and safety of power transmission.

[0070] 4. Stop maintenance

[0071] End of cleaning: When the preset cleaning task is completed or the set cleaning time is reached, the corresponding circuit breaker in the power box is turned off, the power supply to the automatic cleaning device is stopped, the motor 24 stops running, and the electric slide and the electric roller brush mechanism 25 stop working accordingly.

[0072] Equipment maintenance:

[0073] Check the brush: Carefully check the wear of the brush 253 of the electric roller brush mechanism 25. If it is found that the wear of the brush seriously affects the cleaning effect, take advantage of the fact that the brush 253 and the injection layer 252 are fixedly connected by bolts to remove the worn brush and replace it with a new one.

[0074] Component tightening: Check the bolts of the first electric slide 21, the second electric slide 22 and their connecting parts again, tighten the loose bolts, ensure the stability of the entire device structure, and prepare for the next cleaning operation. At the same time, check the fixing of the drag chain to ensure that its two ends are firmly connected to the transformer cooler body 1, so that the cable can be properly protected when used next time.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer cooler automatic catkin cleaning device, comprising a transformer cooler body (1) and an automatic cleaning device (2), characterized in that: A dust screen (14) is fixedly connected to one side of the transformer cooler body (1), and an automatic cleaning device (2) is fixedly connected to one side of the transformer cooler body (1); The automatic cleaning device (2) is composed of a first electric slide (21), a second electric slide (22), a motor (24) and an electric rolling brush mechanism (25); the first electric slide (21) and the second electric slide (22) are arranged in parallel and are respectively fixedly connected to the transformer cooler body (1); one end of the first electric slide (21) is fixedly connected to the motor (24); the output end of the motor (24) is transmission-connected to the first electric slide (21); the output end of the motor (24) is fixedly connected to the There is a motor connecting rod (241), the motor connecting rod (241) is connected to the second electric slide (22), the side of the first electric slide (21) is connected to the first slide (211), the side of the second electric slide (22) is connected to the second slide (221), the first slide (211) and the second slide (221) are fixedly connected to the electric roller brush mechanism (25), and the electric roller brush mechanism (25) is powered on and rotates to further clean the dustproof net (14).

2. The automatic catkin cleaning device for transformer cooler according to claim 1, characterized in that: One side of the first electric slide (21) and the second electric slide (22) are both fixedly connected to a slide bracket (23) via bolts, and the slide bracket (23) is fixedly connected to the transformer cooler body (1) via bolts.

3. The automatic catkin cleaning device for transformer cooler according to claim 1 is characterized in that: A fan (11) is provided on one side of the transformer cooler body (1), a pipeline (12) is provided on the outside of the transformer cooler body (1), and main body brackets (13) are fixedly connected to both sides of the transformer cooler body (1) for supporting and fixing the transformer cooler body (1) as a whole.

4. The automatic catkin cleaning device for transformer cooler according to claim 1, characterized in that: The electric rolling brush mechanism (25) is composed of a rotating motor (251), a glue injection layer (252) and a brush (253). The brush (253) and the glue injection layer (252) are fixedly connected by bolts and can be disassembled and replaced during later maintenance. The brush (253) is made of antistatic nylon fiber.

5. The automatic catkin cleaning device for transformer cooler according to claim 1 is characterized in that: The electric roller brush mechanism (25) has a diameter of 210 mm and is composed of a 60 mm motor diameter, a 30 mm glue injection radius on both sides, and a 45 mm single-side brush length.

6. The automatic catkin cleaning device for transformer cooler according to claim 1, characterized in that: The effective stroke of the first electric slide (21) and the second electric slide (22) is 3 meters, and the load-bearing capacity is not less than 15 kg, and is suitable for cleaning an area of ​​1200×3000 mm in the middle of one side of the transformer cooler body (1).

7. The automatic catkin cleaning device for transformer cooler according to claim 1, characterized in that: A drag chain is also provided on one side of the first electric slide (21), which adopts a segmented fixed structure, with both ends respectively connected to the top and bottom of the transformer cooler body (1), and the cable path is synchronized with the movement track of the first slide (211).

8. The automatic catkin cleaning device for transformer cooler according to claim 1, characterized in that: It also includes a power supply box for controlling the start and stop of the motor (24) and the transformer cooler body (1).

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