Maintenance device for liftable aerators

Abstract

This utility model provides a maintenance device for liftable aerators, which can move on a horizontal aeration branch pipe, covering all aerator locations, greatly reducing the difficulty of maintenance work and improving maintenance efficiency, while saving sewage treatment operating costs. The maintenance device is movable on the horizontal aeration branch pipe and includes a maintenance trolley and a suspended maintenance platform. The maintenance trolley includes a body, main wheels, auxiliary wheels, and a drive mechanism. The main wheels are installed at the bottom of the trolley body and on the horizontal aeration branch pipe. The auxiliary wheels are installed at the bottom of the trolley body and on both sides of the horizontal aeration branch pipe. The trolley body has hook holes, and the top of the suspended maintenance platform has hooks installed in the hook holes, allowing the suspended maintenance platform to suspend below the trolley body. The drive mechanism on the trolley body drives the trolley to move.

Description

Technical Field

[0001] This utility model relates to a maintenance device for liftable aerators. Background Technology

[0002] As a new type of energy-saving aeration equipment, the liftable aerator has been widely used in industrial wastewater treatment plants such as chemical, textile printing and dyeing, and papermaking industries, as well as urban sewage treatment plants in recent years due to its modular design and the ability to complete cleaning and replacement without emptying the aeration tank. However, the following difficulties still exist: (1) The tank area is large, and the maintenance channel cannot be fully covered. The distance between the aeration pipe in the middle and the channel is large, making it impossible to disassemble directly; (2) The aeration branch pipes in the aeration tank are densely distributed, making it difficult to use a small maintenance boat to travel on the water, which affects the maintenance efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a reasonably designed maintenance device for liftable aerators. It can move on the horizontal aeration branch pipe, cover all aerator positions, greatly reduce the difficulty of maintenance work and improve maintenance efficiency, and save sewage treatment operation costs.

[0004] The technical solution adopted by this utility model to solve the above problems is: a maintenance device for a liftable aerator, wherein the liftable aerator is installed in an aeration tank, and a horizontal aeration branch pipe is provided at the top of the liftable aerator, the horizontal aeration branch pipe being higher than the surface of the aeration tank; characterized in that: the maintenance device is movably installed on the horizontal aeration branch pipe, including a maintenance trolley and a suspended maintenance platform; the maintenance trolley includes a body, main wheels, auxiliary wheels, and a drive mechanism; the main wheels are installed at the bottom of the body and are located on the horizontal aeration branch pipe; the auxiliary wheels are installed at the bottom of the body and are located on both sides of the horizontal aeration branch pipe; the body is provided with a hook hole, and the top of the suspended maintenance platform is provided with a hook, the hook being installed in the hook hole, so that the suspended maintenance platform is suspended below the body; the body is provided with a drive mechanism to drive the body to move.

[0005] The vehicle body described in this utility model is equipped with guardrails, and safety chains are installed on the guardrails.

[0006] The bottom of the vehicle body described in this utility model is fixed with an auxiliary wheel bracket, and the auxiliary wheel bracket is provided with mounting holes, in which the auxiliary wheel is installed.

[0007] The mounting hole described in this utility model is a waist-shaped hole.

[0008] This utility model is equipped with a brake on the main wheel.

[0009] This utility model includes a brake handle on the brake.

[0010] The hook hole described in this utility model is oblong.

[0011] The driving mechanism described in this utility model is a traction rope; traction rope loops are fixed on both sides of the vehicle body, and the traction rope is installed in the traction rope loops.

[0012] Compared with the prior art, this utility model has the following advantages and effects:

[0013] (1) Taking into full account the planar and three-dimensional relationship between the underwater aeration components and the above-water branch pipes, the horizontal aeration branch pipes distributed on the top of the pool are used as the leverage point, so that the maintenance device can form a maintenance platform at any position of the branch pipe. Taking into full account that the maintenance position is located at a low position, the suspended maintenance platform will lower the operating position of the maintenance personnel, so that they can maintain the components within the ergonomic scale during operation, which greatly reduces the difficulty of maintenance work.

[0014] (2) This device can be used to disassemble and repair the liftable aerator in the aeration tank of the sewage treatment plant on site without interrupting water supply, thus truly realizing the convenience of maintenance of the liftable aerator.

[0015] (3) The maintenance device is lightweight and has a high load capacity. It can move back and forth on the horizontal aeration branch pipe, and can achieve full coverage of maintenance of the aeration tank and the aerator. It does not require additional cranes and small boats on the water, which greatly reduces the difficulty of maintenance and reduces the operating maintenance cost. Attached Figure Description

[0016] Figure 1 This is a plan view of the aeration tank in an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional schematic diagram of the aeration tank in an embodiment of this utility model.

[0018] Figure 3 This is a plan view of the maintenance device according to an embodiment of the present utility model.

[0019] Figure 4 This is a side view of the maintenance device according to an embodiment of the present invention. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0021] See Figure 1 and Figure 2 The liftable aerators 14 are arranged in the aeration tank 13. Due to the large surface area of ​​the tank, the liftable aerators 14 are often arranged in an array to ensure uniform aeration. A horizontal aeration branch pipe 12 is provided on the top of the liftable aerators 14, and the horizontal aeration branch pipe 12 is higher than the surface of the aeration tank 13.

[0022] See Figures 1-4 The maintenance device is mounted on the horizontal aeration branch pipe 12 and moves back and forth on the horizontal aeration branch pipe 12 by means of wheels. The spacing between the horizontal aeration branch pipes 12 is generally 1500mm. The maintenance device is installed on two sets of horizontal aeration branch pipes 12 and includes a maintenance trolley 1 and a suspended maintenance platform 2.

[0023] The maintenance trolley 1 includes a body 15, main wheels 3, brakes 4, auxiliary wheels 5, safety chains 8, guardrails 9, and a drive mechanism.

[0024] The vehicle body 15 is made of stainless steel or fiberglass. A guardrail 9 is installed on the vehicle body 15, and a safety chain 8 is installed on the guardrail 9.

[0025] The main wheel 3 is installed at the bottom of the vehicle body 15 and is positioned on the horizontal aeration branch pipe 12. The main wheel 3 is a curved nylon roller with a large concave design, allowing it to roll more smoothly on the horizontal aeration branch pipe 12. Auxiliary wheels 5 are installed at the bottom of the vehicle body 15 and are positioned on both sides of the horizontal aeration branch pipe 12. The auxiliary wheels 5 are also made of nylon and are primarily used to prevent the main wheel 3 from shifting. An auxiliary wheel bracket 16 is fixed to the bottom of the vehicle body 15. The auxiliary wheel bracket 16 has mounting holes, and the auxiliary wheels 5 are installed in these holes. These mounting holes are oblong, allowing for fine-tuning of the auxiliary wheel 5's position. The center of the main wheel 3 is aligned with the center of the horizontal aeration branch pipe. Two auxiliary wheels are fixed to both sides of the horizontal aeration branch pipe, creating a triangular contact point on the aeration branch pipe. The other side is fixed in the same way.

[0026] A brake 4 is provided on the main wheel 3, and a brake handle 6 is provided on the brake 4. When the wheel is in place and moves to the designated maintenance position, it can be manually braked to stop.

[0027] The vehicle body 15 is provided with hook holes 7, and the top of the suspended maintenance platform 2 is provided with hooks 17. The hooks 17 are installed in the hook holes 7, so that the suspended maintenance platform 2 is suspended below the vehicle body 15. There are a total of 8 hook holes 7, which are oblong in shape, to facilitate the adjustment of the installation position of the hooks 17. The hooks 17 are made of stainless steel round steel with a diameter of not less than 16. There are no hooks on the short sides of the suspended maintenance platform 2. The bottom surface of the suspended maintenance platform 2 is about 600mm lower than the surface of the vehicle body 15, so that maintenance personnel can manually remove the bolts of the aeration riser flange 11.

[0028] A drive mechanism is installed on the vehicle body 15 to drive the vehicle body 15 to move. Considering the large coverage area of ​​the pool top and the inconvenience of connecting to electricity, this design adopts a manual type. Considering that maintenance inside the pool requires no less than two people to work at the same time, a rope pulling method is adopted. Therefore, in this embodiment, the drive mechanism is a traction rope 10. Specifically, traction rope loops are fixed on both sides of the vehicle body 15, and the traction rope 10 is installed in the traction rope loops. After the device is in place, it can be pulled from one side of the horizontal aeration branch pipe 12 to the other side by the traction rope 10, which can realize reciprocating movement on the horizontal aeration branch pipe 12, achieving the purpose of full coverage for maintenance. The design takes into account the installation position of the lithium battery + slow motor drive mode in the future, and it can also be upgraded to an electric drive mode in the future. The power supply uses a 12V safe voltage and a removable rechargeable lithium battery, which can further reduce labor intensity.

[0029] The working process of this utility model is as follows:

[0030] After the maintenance device is in place and brake 4 is tightened, maintenance personnel install and secure the suspended maintenance platform 2. The safety spring on guardrail 9 is released, opening it to a 90-degree angle. Maintenance personnel, wearing life jackets, climb onto the suspended maintenance platform 2 and are then secured to guardrail 9 via safety chain 8. By pulling the traction rope 10, the maintenance trolley 1 moves axially along the horizontal aeration branch pipe 12 to the location requiring maintenance (e.g., at the aeration riser flange 11), and brake 4 is activated to stop the device in the designated position.

[0031] After the maintenance work is completed, the reverse operation can restore the maintenance device for easy storage. The maintenance device can accommodate one worker operating on the platform.

[0032] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent.

Claims

1. A maintenance device for a liftable aerator, wherein the liftable aerator is installed in an aeration tank, and a horizontal aeration branch pipe is provided at the top of the liftable aerator, the horizontal aeration branch pipe being higher than the surface of the aeration tank; characterized in that: The maintenance device is movable on the horizontal aeration branch pipe and includes a maintenance trolley and a suspended maintenance platform. The maintenance trolley includes a body, main wheels, auxiliary wheels, and a drive mechanism. The main wheels are installed at the bottom of the body and on the horizontal aeration branch pipe. The auxiliary wheels are installed at the bottom of the body and on both sides of the horizontal aeration branch pipe. The body has hook holes, and the top of the suspended maintenance platform has hooks installed in the hook holes, so that the suspended maintenance platform is suspended below the body. The body has a drive mechanism to drive the body to move.

2. The maintenance device for a liftable aerator according to claim 1, characterized in that: The vehicle body is equipped with guardrails, and safety chains are installed on the guardrails.

3. The maintenance device for a liftable aerator according to claim 1, characterized in that: The bottom of the vehicle body is fixed with an auxiliary wheel bracket, and the auxiliary wheel bracket is provided with mounting holes, in which the auxiliary wheel is installed.

4. The maintenance device for a liftable aerator according to claim 3, characterized in that: The mounting hole is a slotted hole.

5. The maintenance device for a liftable aerator according to claim 1, characterized in that: Brakes are installed on the main wheels.

6. The maintenance device for a liftable aerator according to claim 5, characterized in that: A brake lever is provided on the brake.

7. The maintenance device for a liftable aerator according to claim 1, characterized in that: The hook hole is oblong.

8. The maintenance device for a liftable aerator according to claim 1, characterized in that: The driving mechanism is a traction rope; traction rope loops are fixed on both sides of the vehicle body, and the traction rope is installed in the traction rope loops.

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