Long-period running petrochemical sewage push-flow device

Abstract

The utility model relates to petrochemical sewage treatment equipment technical field discloses a long -period operation's petrochemical sewage plug -flow device, the sewage plug -flow device includes the drive motor of setting at the sewage pool top surface, the axle extension end transmission of drive motor connects the speed reducer, the axle extension end of speed reducer passes through the transmission shaft transmission connection and is arranged at the sewage pool bottom surface commutator, the drive end fixed setting of commutator pushes the flow vane, be equipped with cross axle type rigid universal joint on the transmission shaft, cross axle type rigid universal joint is located above the sewage pool top surface. The utility model discloses drive motor is outside sewage pool top surface, solved the traditional integrated propeller motor poor heat dissipation problem. Through the split type structure design makes the motor, speed reducer etc. core components convenient maintenance, need not integral replacement plug -flow device.

Description

Technical Field

[0001] This utility model relates to the technical field of petrochemical wastewater treatment equipment, specifically to a petrochemical wastewater propulsion device with a long operating cycle. Background Technology

[0002] In petrochemical wastewater treatment, the wastewater temperature in the wastewater tanks is high, and existing technologies primarily use integrated propellers. Because these propellers operate at the bottom of the wastewater tank, they cannot be equipped with cooling structures such as fan blades. During long-term operation, their drive motors are prone to overload or overheating, leading to frequent malfunctions and severely impacting the long-term stable operation of the wastewater treatment plant. Furthermore, the integrated structure of existing propellers ensures sealing, but once a malfunction occurs, repaired propellers generally suffer from poor sealing. This makes the drive motor highly susceptible to short-circuiting and burning out due to water ingress, rendering it unrepairable. Since the cost of a single propeller is high, frequent replacement cycles would significantly increase the operating costs of the wastewater treatment plant.

[0003] Therefore, in order to solve the above-mentioned technical problems, this application proposes a petrochemical wastewater propulsion device with long-cycle operation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a petrochemical wastewater propulsion device with a long operating cycle.

[0005] To achieve the above objectives, the technical solution of this utility model is: a long-cycle petrochemical wastewater propulsion device. The device includes a drive motor mounted on the top surface of a wastewater tank. The shaft extension of the drive motor is connected to a reducer, and the shaft extension of the reducer is connected via a drive shaft to a commutator mounted on the bottom surface of the wastewater tank. A propulsion blade is fixedly mounted on the drive end of the commutator. A cross-shaped rigid universal joint is mounted on the drive shaft, located above the top surface of the wastewater tank. By mounting the drive motor on the top surface of the wastewater tank, it is isolated from the high-temperature wastewater, preventing direct contact between the drive motor and the wastewater, effectively reducing the heat dissipation pressure on the drive motor. Furthermore, this split design allows the core components, such as the drive motor and reducer, to be located on the top surface of the wastewater tank, eliminating the need for complete disassembly of the propulsion device during maintenance, significantly reducing maintenance difficulty and cost.

[0006] By incorporating a cross-shaped rigid universal joint, two key advantages are achieved: First, it effectively solves the installation problem when the reducer's shaft extension end and the drive shaft's axis are misaligned. In actual assembly, due to machining errors, installation space limitations, or accumulated assembly errors, it's difficult to ensure the reducer's shaft extension end and the drive shaft's axis are perfectly coaxial. The cross-shaped rigid universal joint can achieve power transmission between different axes within a certain angle range. Even with some axis deviation, it ensures smooth installation and stable transmission, significantly reducing the assembly precision requirements and installation difficulty. Second, when the propeller blades are operating, the reaction force of the water flow and the propeller blades' own rotational imbalance cause a lateral displacement in the drive shaft. The cross-shaped rigid universal joint can promptly compensate for this lateral displacement, preventing it from being transmitted to the reducer and preventing excessive wear or damage to internal parts due to additional lateral forces, thus ensuring the smooth operation of the entire transmission system.

[0007] Furthermore, a sealing sleeve is fitted around the drive shaft. The bottom end of the sealing sleeve is sealed to the commutator housing, and the top end of the sealing sleeve is flush with the top surface of the sewage tank. By installing the sealing sleeve, high-temperature sewage can be effectively prevented from seeping into the transmission system, ensuring the normal operation of the device.

[0008] Furthermore, a fixed bracket is provided below the reducer, which is fixed to the top surface of the sewage tank to support and fix the reducer and the drive motor above the reducer, ensuring the installation stability of the reducer and the drive motor.

[0009] Furthermore, the commutator is provided with a slide block at the other end relative to the propeller blade, and the slide block is slidably connected to a slide rail vertically arranged in the sewage tank. The slide block is used to fix the commutator and the propeller blade while guiding the commutator and the propeller blade to slide in the set direction of the slide rail, ensuring the stability of the propeller blade during operation and avoiding mechanical wear caused by shaking.

[0010] Furthermore, a limiting seat is provided below the slide block, the limiting seat is fixedly sleeved with the slide rail, the top of the limiting seat is an inclined surface, and the bottom of the slide block is parallel to the top of the limiting seat. The limiting seat is used to cooperate with the slide block to limit the position of the propeller blade and prevent the propeller blade from shifting position during operation.

[0011] Furthermore, a support rod is also provided below the slide rail, and the support rod is fixed to the bottom surface of the sewage tank. The support rod is used to further improve the stability of the slide rail and ensure the reliability of the entire flow propulsion device.

[0012] Furthermore, the sealing sleeve is made of fiberglass. This material is lightweight and corrosion-resistant, which can significantly extend the service life of the sealing sleeve.

[0013] The beneficial effects of this utility model are: This invention solves the problem of poor heat dissipation in traditional integrated propeller motors by placing the drive motor externally on the top surface of the sewage tank. The split-type structural design facilitates the maintenance of core components such as the motor and reducer, eliminating the need for complete replacement of the propulsion device. Optimization of structures such as the sealing sleeve and slide rail improves the device's sealing performance and stability, enhancing the reliability of long-term operation and reducing the likelihood of motor damage due to seal failure after maintenance, thus significantly lowering maintenance costs. This utility model adopts a cross-shaped rigid universal joint on the drive shaft. Firstly, it can effectively solve the installation problem when the shaft extension end of the reducer is misaligned with the axis of the drive shaft. Secondly, it can promptly compensate for some of the lateral displacement of the drive shaft caused by the reaction force of the water flow and the rotational imbalance of the propeller blades during operation. This avoids the displacement being transmitted to the reducer and prevents excessive wear or damage to the internal parts of the reducer due to additional lateral forces, thereby ensuring the smooth operation of the entire transmission system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of part A; Figure 3 yes Figure 1 Enlarged view of part B; Figure 4 yes Figure 1 Enlarged view of part C.

[0015] In the diagram: 1. Drive motor; 2. Reducer; 3. Drive shaft; 4. Commutator; 5. Flow propeller; 6. Sealing sleeve; 7. Fixed bracket; 8. Slide block; 9. Slide rail; 10. Limit seat; 11. Support rod; 12. Cross-shaft rigid universal joint. Detailed Implementation

[0016] Example

[0017] like Figures 1 to 4 As shown, a long-cycle petrochemical wastewater propulsion device includes a drive motor 1 mounted on the top surface of a wastewater tank. A reducer 2 is connected to the shaft extension of the drive motor 1. A fixed bracket 7 is located below the reducer 2 and is fixed to the top surface of the wastewater tank. The shaft extension of the reducer 2 is connected to a commutator 4 mounted on the bottom surface of the wastewater tank via a drive shaft 3. A propulsion blade 5 is fixedly mounted on the drive end of the commutator 4. A cross-shaped rigid universal joint 12 is mounted on the drive shaft 3 and is located above the top surface of the wastewater tank.

[0018] The drive shaft 3 is fitted with a sealing sleeve 6, which is made of fiberglass. The bottom end of the sealing sleeve 6 is sealed to the outer shell of the commutator 4, and the top end of the sealing sleeve 6 is flush with the top surface of the sewage tank.

[0019] The commutator 4 has a slide 8 at the other end relative to the propeller blade 5. The slide 8 is slidably connected to a slide rail 9 vertically arranged in the sewage tank. A limit seat 10 is provided below the slide 8, and the limit seat 10 is fixedly sleeved on the slide rail 9. The top of the limit seat 10 is an inclined surface, and the bottom of the slide 8 is parallel to the top of the limit seat 10. A support rod 11 is also provided below the slide rail 9, and the support rod 11 is fixed to the bottom surface of the sewage tank.

[0020] In practical applications: First, a drive motor 1 is installed on the top surface of the sewage tank, and a reducer 2 is securely supported below the drive motor 1 by a fixed bracket 7. A drive shaft 3 is passed through the sewage tank, with one end connected to the shaft extension of the reducer 2 via a cross-shaped rigid universal joint 12, and the other end connected to a commutator 4 located on the bottom surface of the sewage tank. A fiberglass sealing sleeve 6 is fitted over the drive shaft, ensuring a sealed connection between the bottom end of the sealing sleeve 6 and the outer shell of the commutator 4. A propeller blade 5 is fixedly installed at the drive end of the commutator 4. A slide block 8 is installed at the other end of the commutator 4 relative to the propeller blade 5, and it slides against a vertically positioned slide rail 9 within the sewage tank. A limit seat 10 and a support rod 11 are installed below the slide rail 9 to ensure the stability of the propeller blade 5 during operation. Through the above-described embodiments, the petrochemical wastewater propulsion device of this utility model, which operates for a long period of time, can effectively solve the problems existing in the prior art, achieve stable operation over a long period of time, reduce the cost of use, and has good application prospects. The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

[0021] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A petrochemical wastewater propulsion device with a long operating cycle, characterized in that: The sewage propulsion device includes a drive motor (1) installed on the top surface of the sewage tank. The shaft extension end of the drive motor (1) is connected to a reducer (2). The shaft extension end of the reducer (2) is connected to a commutator (4) installed on the bottom surface of the sewage tank via a drive shaft (3). The drive end of the commutator (4) is fixedly equipped with a propulsion blade (5). A cross-shaped rigid universal joint (12) is provided on the drive shaft (3). The cross-shaped rigid universal joint (12) is located above the top surface of the sewage tank.

2. The petrochemical wastewater propulsion device for long-cycle operation according to claim 1, characterized in that: The drive shaft (3) is fitted with a sealing sleeve (6), the bottom end of which is sealed to the outer shell of the commutator (4), and the top end of which is flush with the top surface of the sewage tank.

3. The petrochemical wastewater propulsion device for long-cycle operation according to claim 1, characterized in that: The reducer (2) is provided with a fixed bracket (7) below it, and the fixed bracket (7) is fixed to the top surface of the sewage tank.

4. The petrochemical wastewater propulsion device for long-cycle operation according to claim 1, characterized in that: The commutator (4) has a slide (8) at the other end relative to the propeller blade (5), and the slide (8) is slidably connected to the slide rail (9) vertically set in the sewage tank.

5. The petrochemical wastewater propulsion device for long-cycle operation according to claim 4, characterized in that: A limiting seat (10) is provided below the slide (8). The limiting seat (10) is fixedly sleeved on the slide rail (9). The top of the limiting seat (10) is an inclined surface, and the bottom of the slide (8) is parallel to the top of the limiting seat (10).

6. The petrochemical wastewater propulsion device for long-cycle operation according to claim 4, characterized in that: A support rod (11) is also provided below the slide rail (9), and the support rod (11) is fixed to the bottom of the sewage tank.

7. The petrochemical wastewater propulsion device for long-cycle operation according to claim 2, characterized in that: The sealing sleeve (6) is made of glass fiber.

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