Durable water pump for sewage treatment

Abstract

The utility model relates to water treatment technical field, and disclose a kind of durable water pump for sewage treatment, including support base, motor structure, shaft coupling sealing box, rotating shaft fixed structure, water pump and sewage inlet and outlet structure, motor is stably installed by motor support frame, output shaft is connected rotating shaft through shaft coupling, rotating shaft is supported by high-precision ball bearing, drive wear-resistant impeller in water pump rotation, water pump adopts side water inlet, top water outlet design, cooperate with self-cleaning grid filter screen and gradually expanding flow channel, effectively reduce blockage and energy loss, shaft coupling sealing box uses anticorrosive sealing structure, rotating shaft support system is equipped with heat dissipation channel and split type maintenance design, water pump support frame uses modular damping structure, overall rigidity installation ensures operating stability.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically a durable water pump for sewage treatment. Background Technology

[0002] Wastewater treatment is a process of purifying domestic sewage and industrial wastewater through physical, chemical, and biological means to remove pollutants and improve water quality. In wastewater treatment systems, water pumps, as the core fluid transport equipment, undertake the critical task of lifting and transporting wastewater. Since wastewater often contains complex components such as suspended solids, acidic and alkaline substances, and microorganisms, and the treatment process often requires water pumps to operate continuously for a long time, extremely high requirements are placed on the wear resistance, corrosion resistance, stability, and service life of water pumps. A reliable wastewater treatment water pump can not only ensure the smooth operation of the wastewater treatment process, but also reduce equipment maintenance costs and improve overall treatment efficiency, making it an indispensable infrastructure in wastewater treatment processes.

[0003] Traditional sewage treatment pumps have revealed numerous shortcomings during long-term use. On the one hand, impellers and pump bodies made of ordinary materials are easily worn by particulate impurities in sewage or corroded by corrosive components, leading to leaks, reduced efficiency, and even equipment failure. Frequent replacement of parts increases maintenance costs and downtime. On the other hand, traditional structural designs often fail to fully consider the complexity of sewage. For example, impeller clogging is frequent, requiring regular manual cleaning, which is not only labor-intensive but may also affect the sewage treatment progress if cleaning is not timely. In addition, some traditional pumps have high energy consumption, resulting in significant energy waste during long-term operation, which is inconsistent with the current trend of energy conservation and environmental protection in industrial development. These technical bottlenecks not only restrict the stability and economy of sewage treatment systems but also make it difficult to meet the increasingly stringent environmental standards for high-efficiency treatment equipment. Therefore, we propose a durable pump for sewage treatment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a durable water pump for sewage treatment, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a durable water pump for sewage treatment, comprising a support base and mounting plates. Mounting plates are fixedly installed on both sides of the support base, and mounting holes are provided on the top of the mounting plates. A motor structure is provided on one side of the top of the support base. A coupling housing base is fixedly installed on the side of the top of the support base corresponding to the motor structure. A connecting structure is provided on the top of the coupling housing base. A rotating shaft housing support frame is fixedly installed on the side of the coupling housing base. A rotating shaft fixing structure is provided on the top of the rotating shaft housing support frame. A connecting housing is fixedly connected to the side of the rotating shaft fixing structure. A water pump is fixedly connected to the side of the connecting housing. A support structure is provided at the bottom of the water pump, and a sewage inlet / outlet structure is provided on the side of the water pump.

[0008] Preferably, the motor structure includes a motor support frame and a motor, the motor support frame is fixedly installed on the top of the support base, and the motor is fixedly installed on the top of the motor support frame.

[0009] Preferably, the connection structure includes a coupling housing and a coupling. The bottom of the coupling housing is fixedly installed on the top of the coupling housing base. The side of the coupling housing is fixedly connected to the motor. A coupling is provided inside the coupling housing. A coupling is fixedly installed at the end of the output shaft of the motor.

[0010] Preferably, the rotating shaft fixing structure includes a rotating shaft housing fixing seat, a rotating shaft housing support, a rotating shaft, and ball bearings. The rotating shaft housing fixing seat is fixedly installed on the top of the rotating shaft housing support frame, and the rotating shaft housing support is fixedly installed on the top of the rotating shaft housing fixing seat. One side of the rotating shaft housing support is fixed to the coupling housing, and the other side of the rotating shaft housing support is fixedly connected to a connecting housing. A set of parallel ball bearings is fixedly installed inside the rotating shaft housing support, and the rotating shaft is rotatably installed inside the ball bearings. One end of the rotating shaft is fixedly connected to the coupling.

[0011] Preferably, the support structure includes a water pump support frame and a water pump mounting base. A set of parallel water pump support frames is fixedly installed on the top of the support base on the other side corresponding to the side where the motor support frame is installed. A water pump mounting base is fixedly installed on the top of the water pump support frame. A water pump is fixedly installed on the top of the water pump mounting base. An impeller is provided inside the water pump. The impeller is fixedly installed on the other end of the rotating shaft.

[0012] Preferably, the sewage inlet / outlet structure includes an inlet, an inlet connecting plate, an outlet, and an outlet connecting plate. The inlet is provided on the side of the water pump, and the inlet connecting plate is fixedly installed on the outer side of the inlet. The outlet is provided on the top of the water pump, and the outlet connecting plate is fixedly installed on the outer side of the outlet.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a durable water pump for sewage treatment, which has the following advantages:

[0015] 1. This durable water pump for sewage treatment uses high-precision ball bearings in its rotating shaft fixing structure. By reducing frictional losses between the rotating shaft and the supporting structure, it avoids operational instability caused by wear. The impeller inside the pump can be fitted with wear-resistant materials. Combined with the stable transmission of the rotating shaft, it effectively resists the impact and wear of suspended solids in sewage. In addition, the sealed connection between the coupling housing and the motor, as well as the precision design of the inlet and outlet connection plates, further enhance the overall structural sealing and reduce the risk of leakage of corrosive liquids.

[0016] 2. This durable wastewater treatment pump features a side inlet and a top outlet that, together with the impeller, create a smoother wastewater flow path, reducing the probability of impurity buildup. The parallel support design of the pump support frame and pump mounting base ensures the pump remains stable during high-speed operation, preventing impurity accumulation caused by vibration. Furthermore, the rigid connection between the rotating shaft and the impeller provides stronger driving force. Even if a small amount of larger particles are sucked in, the high-speed rotation of the impeller can break them up or push them away, reducing the risk of clogging.

[0017] 3. This durable water pump for sewage treatment has a motor that is securely mounted on a support base via a motor support frame. Its output shaft is rigidly connected to the rotating shaft via a coupling, forming a short path. The multi-layer support structure of the rotating shaft housing fixing seat and the rotating shaft housing support, combined with the low friction characteristics of the ball bearings, significantly reduces rotational resistance. The motor's kinetic energy can be more efficiently converted into the impeller's mechanical energy. The rigid fixing design of the support base and mounting plate, combined with the precision assembly between various components, effectively suppresses the vibration amplitude during operation, thereby avoiding seal failure or component loosening caused by vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the impeller of this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting shell of this utility model;

[0021] Figure 4This is a cross-sectional view of the present invention.

[0022] In the diagram: 1. Support base; 2. Mounting plate; 3. Motor support frame; 4. Motor; 5. Coupling housing base; 6. Coupling housing; 7. Rotary shaft housing support frame; 8. Rotary shaft housing fixing seat; 9. Rotary shaft housing support; 10. Connecting housing; 11. Water pump support frame; 12. Water pump fixing seat; 13. Inlet; 14. Inlet connecting plate; 15. Water pump; 16. Outlet; 17. Outlet connecting plate; 18. Rotary shaft; 19. Ball bearing; 20. Impeller; 21. Coupling. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A durable water pump for sewage treatment includes a support base 1 and a mounting plate 2. The mounting plate 2 is fixedly installed on both sides of the support base 1. The top of the mounting plate 2 has a mounting hole. A motor structure is provided on one side of the top of the support base 1. A coupling housing base 5 is fixedly installed on the side of the top of the support base 1 corresponding to the motor structure. A connecting structure is provided on the top of the coupling housing base 5. A rotating shaft housing support frame 7 is fixedly installed on the side of the coupling housing base 5. A rotating shaft fixing structure is provided on the top of the rotating shaft housing support frame 7. A connecting housing 10 is fixedly connected to the side of the rotating shaft fixing structure. A water pump 15 is fixedly connected to the side of the connecting housing 10. A support structure is provided at the bottom of the water pump 15. A sewage inlet / outlet structure is provided on the side of the water pump 15.

[0025] Furthermore, the motor structure includes a motor support frame 3 and a motor 4. The motor support frame 3 is fixedly installed on the top of the support base 1, and the motor 4 is fixedly installed on the top of the motor support frame 3. The bottom is rigidly connected to the support base 1 by high-strength bolts. Rubber damping pads are embedded in the contact surface between the top and the motor 4. This design can not only absorb the vertical vibration generated when the motor 4 is running at high speed, but also suppress horizontal displacement through the lateral limiting groove, so that the motor 4 can maintain stable operation during startup and load changes. In addition, the height of the motor support frame 3 is adjustable, which makes it easy to align with the central axis of the coupling 21 and reduce radial deviation during power transmission.

[0026] Furthermore, the connection structure includes a coupling housing 6 and a coupling 21. The bottom of the coupling housing 6 is fixedly installed on the top of the coupling housing base 5. The side of the coupling housing 6 is fixedly connected to the motor 4. The coupling 21 is installed inside the coupling housing 6. The output shaft of the motor 4 is fixedly installed with the coupling 21. The housing of the coupling housing 6 is made of 304 stainless steel lined with polytetrafluoroethylene coating, which can resist acid and alkali corrosion in the sewage environment. The wear of the coupling 21 can be checked regularly through the detachable observation window on the top of the housing. The coupling 21 itself is an elastic plum blossom coupling. Its internal nylon buffer block can absorb the instantaneous impact load of the motor 4 and prevent the rotating shaft 18 from bearing sudden torque. The bottom of the coupling housing 6 is also provided with a drain hole to drain any accidentally seeping liquid.

[0027] Furthermore, the rotating shaft fixing structure includes a rotating shaft housing fixing seat 8, a rotating shaft housing support 9, a rotating shaft 18, and ball bearings 19. The rotating shaft housing fixing seat 8 is fixedly installed on the top of the rotating shaft housing support frame 7, and the rotating shaft housing support 9 is fixedly installed on the top of the rotating shaft housing fixing seat 8. One side of the rotating shaft housing support 9 is fixed to the coupling housing 6, and the other side of the rotating shaft housing support 9 is fixedly connected to a connecting housing 10. A set of parallel ball bearings 19 are fixedly installed inside the rotating shaft housing support 9, and a rotating shaft is rotatably mounted inside the ball bearings 19. Shaft 18, one end of which is fixedly connected to coupling 21. The rotating shaft housing mounting base 8 is designed with an annular heat dissipation channel. The rotation of the rotating shaft 18 drives airflow circulation, which dissipates the heat generated by the ball bearing 19 from the heat dissipation fins. The rotating shaft housing support 9 adopts a split structure. The upper and lower housings are precisely connected by positioning pins, which facilitates the disassembly and maintenance of the ball bearing 19. In particular, the ball bearing 19 is a double-row angular contact bearing, which can not only withstand radial force, but also offset the axial movement of the rotating shaft 18 through the preload spring, ensuring that the gap between the impeller 20 and the pump housing is constant.

[0028] Furthermore, the support structure includes a water pump support frame 11 and a water pump mounting base 12. A set of parallel water pump support frames 11 is fixedly installed on the top of the support base 1 on the other side where the motor support frame 3 is installed. The water pump mounting base 12 is fixedly installed on the top of the water pump support frame 11, and the water pump 15 is fixedly installed on the top of the water pump mounting base 12. An impeller 20 is provided inside the water pump 15, and the impeller 20 is fixedly installed on the other end of the rotating shaft 18. The modular design of the water pump support frame 11 has special advantages. Each set of support frames is composed of interchangeable standardized units. By changing the number of units, water pumps 15 with different power can be adapted. The contact surface between the water pump mounting base 12 and the water pump 15 is machined with a sealing groove. After the sealing ring is embedded, it can prevent the bolts from loosening due to vibration. In addition, a vibration sensor mounting position is pre-embedded inside the support frame, which can monitor the operating status of the water pump 15 in real time.

[0029] Furthermore, the sewage inlet and outlet structure includes an inlet 13, an inlet connecting plate 14, an outlet 16, and an outlet connecting plate 17. The pump 15 has an inlet 13 on its side, and the inlet connecting plate 14 is fixedly installed on the outer side of the inlet 13. The pump 15 has an outlet 16 on its top, and the outlet connecting plate 17 is fixedly installed on the outer side of the outlet 16. The inlet connecting plate 14 contains a rotatable screen filter, driven by a small gear extending from the rotating shaft 18, achieving a self-cleaning function. The outlet connecting plate 17 adopts a gradually expanding flow channel design, converting turbulence into laminar flow, which reduces outlet kinetic energy loss. All flange faces of the connecting plate use a raised-face sealing structure.

[0030] Structural Description:

[0031] Support base 1: Support base 1 is the basic load-bearing structure of the water pump. It has fixed mounting plates 2 on both sides, and a motor support frame 3 and a water pump support frame 11 on the top. The overall stability is ensured by rigid connection, and the mounting holes at the bottom are used to fix the equipment.

[0032] Mounting plate 2: Mounting plate 2 is symmetrically distributed on both sides of support base 1. Mounting holes are opened on the top for fixing the water pump system. Its thickness and material design can effectively absorb operating vibration.

[0033] Motor support frame 3: The motor support frame 3 adopts a double-layer buffer structure. The bottom is rigidly connected to the support base 1, and the top is embedded with a rubber shock-absorbing pad. The height is adjustable to align with the axis of the coupling 21.

[0034] Motor 4: Motor 4 is fixed by motor support frame 3, and the output shaft is connected to coupling 21. It adopts a sealed design to prevent sewage corrosion and provides stable power output.

[0035] Coupling housing base 5: The coupling housing base 5 is fixed to the top of the support base 1 and is used to support the coupling housing 6. It is made of corrosion-resistant material and has drainage holes.

[0036] Coupling housing 6: The coupling housing 6 is made of 304 stainless steel lined with polytetrafluoroethylene coating, and has a removable observation window on the top to seal and protect the internal coupling 21.

[0037] Rotary shaft housing support frame 7: The rotary shaft housing support frame 7 is fixed to the side of the coupling housing base 5, and the top is equipped with a rotary shaft fixing structure to support the operation of the rotary shaft 18;

[0038] Rotary shaft housing mounting base 8: The rotating shaft housing mounting base 8 is provided with an annular heat dissipation channel inside, and the heat of the bearing is dissipated through heat dissipation fins to ensure stable operation of the rotating shaft 18;

[0039] Rotary shaft housing support 9: The rotary shaft housing support 9 adopts a split structure, with a double row angular contact ball bearing 19 installed inside, and axial movement is controlled by a preload spring;

[0040] Connecting housing 10: Connecting housing 10 connects the rotating shaft housing support 9 and the water pump 15, and the inner wall is coated with tungsten carbide to resist sewage erosion;

[0041] Water pump support frame 11: The water pump support frame 11 is a modular design, composed of standardized units, which can be adapted to water pumps 15 with different power, and has a pre-embedded vibration sensor mounting position inside;

[0042] Water pump mounting bracket 12: Water pump 15 is fixed on the top of water pump mounting bracket 12, and a sealing groove is machined on the contact surface and a sealing ring is embedded to prevent vibration from causing the bolts to loosen;

[0043] Inlet 13: Inlet 13 is located on the side of water pump 15 and is connected to self-cleaning bar screen to optimize the water flow path and reduce impurity accumulation;

[0044] Inlet connecting plate 14: The inlet connecting plate 14 adopts a concave-convex sealing flange, and the internal grid filter screen is driven to rotate by the rotating shaft 18 to achieve a self-cleaning function;

[0045] Water pump 15: The water pump 15 is equipped with a wear-resistant impeller 20 and adopts a side water inlet and top water outlet design to improve the sewage transportation efficiency;

[0046] Outlet 16: The outlet 16 is located on the top of the water pump 15 and is connected to the gradually expanding flow channel outlet connecting plate 17 to convert turbulence into laminar flow to reduce energy loss.

[0047] Outlet connecting plate 17: The outlet connecting plate 17 adopts a gradually expanding flow channel design and the flange face has a concave-convex sealing structure to reduce the loss of kinetic energy at the outlet.

[0048] Rotating shaft 18: The rotating shaft 18 is supported by ball bearing 19, one end is connected to coupling 21, and the other end drives impeller 20. The surface is treated with anti-corrosion.

[0049] Ball bearing 19: The ball bearing 19 is a double-row angular contact design, which is installed in parallel inside the rotating shaft housing support 9 to reduce friction loss and withstand radial and axial forces;

[0050] Impeller 20: The impeller 20 is made of high-hardness wear-resistant material, three-dimensional dynamic balance correction, and is fixed to the end of the rotating shaft 18 by rigid connection;

[0051] Coupling 21: Coupling 21 is a flexible plum blossom coupling with a built-in nylon buffer block to absorb impact loads and realize a flexible connection between motor 4 and rotating shaft 18;

[0052] Working Principle: Motor 4 is the core power source of the water pump, fixedly mounted on motor support frame 3. When motor 4 starts, its output shaft begins to rotate at high speed, and the coupling 21 installed at the end of the output shaft rotates accordingly. Coupling 21 transmits power to the rotating shaft 18 through rigid connection. The design of motor support frame 3 ensures the stability of motor 4 during operation, avoiding a decrease in power transmission efficiency due to vibration. Coupling 21 is sealed inside coupling housing 6, which is fixed on coupling housing base 5. This sealing design effectively prevents sewage or external impurities from entering the coupling area, avoiding failure of coupling 21 due to corrosion or contamination. Simultaneously, the coupling... The fixed connection between the sealing box 6 and the motor 4 further enhances the overall structure and ensures the continuity of power transmission. The rotating shaft 18 is mounted inside the rotating shaft housing support 9 via a set of parallel ball bearings 19. The high-precision design of the ball bearings 19 significantly reduces the frictional loss between the rotating shaft 18 and the support structure, enabling the rotating shaft 18 to rotate at high speed with lower resistance. The rotating shaft housing support 9 is fixed to the rotating shaft housing support frame 7 via the rotating shaft housing fixing seat 8, forming a multi-layer support structure that further enhances the stability of the rotating shaft 18. This design not only extends the service life of the rotating shaft 18 but also avoids operational instability caused by vibration or misalignment. The other end of shaft 18 extends into the pump 15 and is fixedly mounted with an impeller 20. When shaft 18 rotates, impeller 20 rotates at high speed, creating negative pressure in the pump chamber. Sewage is drawn into the pump 15 through inlet 13. The blades of impeller 20 push the sewage from inlet 13 to outlet 16, completing the sewage transport. Impeller 20 is made of wear-resistant material, effectively resisting the impact and wear of suspended particles in the sewage, extending the service life of impeller 20. Inlet 13 is located on the side of pump 15, and outlet 16 is located at the top. This design forms a smooth sewage flow path. Inlet connecting plate 14 and outlet connecting plate 17 are also included. Through precise design and connection with external pipelines, airtightness is ensured to prevent sewage leakage. The side-inlet and top-outlet structure reduces the probability of impurities accumulating inside the water pump 15, lowering the risk of blockage. At the same time, the rigid fixing design of the connecting plate avoids loosening of the connection due to vibration. The water pump 15 is fixed to the water pump support frame 11 through the water pump fixing seat 12. The water pump support frame 11 is installed parallel to the other side of the support base 1. This symmetrical support design ensures the stability of the water pump 15 during high-speed operation and avoids loosening of components or failure of seal due to vibration. The mounting plates 2 on both sides of the support base 1 are fixed to the ground or base through mounting holes, further enhancing the rigidity of the entire device.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A durable water pump for sewage treatment, comprising a support base (1) and a mounting plate (2), characterized in that: Mounting plates (2) are fixedly installed on both sides of the support base (1). Mounting holes are provided on the top of the mounting plates (2). A motor structure is provided on one side of the top of the support base (1). A coupling sealing base (5) is fixedly installed on the side of the top of the support base (1) corresponding to the motor structure. A connecting structure is provided on the top of the coupling sealing base (5). A rotating shaft housing support frame (7) is fixedly installed on the side of the coupling sealing base (5). A rotating shaft fixing structure is provided on the top of the rotating shaft housing support frame (7). A connecting housing (10) is fixedly connected to the side of the rotating shaft fixing structure. A water pump (15) is fixedly connected to the side of the connecting housing (10). A support structure is provided at the bottom of the water pump (15). A sewage inlet / outlet structure is provided on the side of the water pump (15).

2. The durable water pump for sewage treatment according to claim 1, characterized in that: The motor structure includes a motor support frame (3) and a motor (4). The motor support frame (3) is fixedly installed on the top of the support base (1), and the motor (4) is fixedly installed on the top of the motor support frame (3).

3. A durable water pump for sewage treatment according to claim 2, characterized in that: The connection structure includes a coupling housing (6) and a coupling (21). The bottom of the coupling housing (6) is fixedly installed on the top of the coupling housing base (5). The side of the coupling housing (6) is fixedly connected to the motor (4). The coupling (21) is provided inside the coupling housing (6). The coupling (21) is fixedly installed at the end of the output shaft of the motor (4).

4. A durable water pump for sewage treatment according to claim 3, characterized in that: The rotating shaft fixing structure includes a rotating shaft housing fixing seat (8), a rotating shaft housing support (9), a rotating shaft (18), and a ball bearing (19). The rotating shaft housing fixing seat (8) is fixedly installed on the top of the rotating shaft housing support frame (7). The rotating shaft housing support (9) is fixedly installed on the top of the rotating shaft housing fixing seat (8). One side of the rotating shaft housing support (9) is fixed to the coupling housing (6). The other side of the rotating shaft housing support (9) is fixedly connected to a connecting housing (10). A set of parallel ball bearings (19) is fixedly installed inside the rotating shaft housing support (9). The rotating shaft (18) is rotatably installed inside the ball bearings (19). One end of the rotating shaft (18) is fixedly connected to the coupling (21).

5. A durable water pump for sewage treatment according to claim 1, characterized in that: The support structure includes a water pump support frame (11) and a water pump mounting base (12). A set of parallel water pump support frames (11) is fixedly installed on the top of the support base (1) on the other side where the motor support frame (3) is installed. A water pump mounting base (12) is fixedly installed on the top of the water pump support frame (11). A water pump (15) is fixedly installed on the top of the water pump mounting base (12). An impeller (20) is provided inside the water pump (15). The impeller (20) is fixedly installed on the other end of the rotating shaft (18).

6. A durable water pump for sewage treatment according to claim 1, characterized in that: The sewage inlet and outlet structure includes an inlet (13), an inlet connecting plate (14), an outlet (16), and an outlet connecting plate (17). The water pump (15) has an inlet (13) on its side. The inlet connecting plate (14) is fixedly installed on the outer side of the inlet (13). The water pump (15) has an outlet (16) on its top. The outlet connecting plate (17) is fixedly installed on the outer side of the outlet (16).

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