A vertical centrifugal pump with filtration function

By introducing dual filter plates and installation components into the vertical centrifugal pump, the problem of filter clogging was solved, enabling quick disassembly and cleaning of impurities, thus improving filtration efficiency and work efficiency.

CN224432941UActive Publication Date: 2026-06-30YANCHENG HAIHE PUMP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG HAIHE PUMP CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing vertical centrifugal pumps suffer from filter screen blockage due to impurities accumulating during use, which affects the normal flow of water and requires frequent disassembly and cleaning, reducing work efficiency.

Method used

The design incorporates a dual-filter plate structure and installation components, including a bidirectional threaded screw and gear drive, to enable quick assembly and disassembly of the filter plates. It is also equipped with a guide plate and discharge pipe to support the cleaning of impurities without shutting down the machine.

Benefits of technology

It improves filtration efficiency, reduces maintenance time, extends the clogging cycle of filter plates, and enhances the working efficiency and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224432941U_ABST
    Figure CN224432941U_ABST
Patent Text Reader

Abstract

This utility model provides a vertical centrifugal pump with filtration function, including a vertical centrifugal pump body. A fixing pipe is fixedly installed on the front side of the vertical centrifugal pump body near the bottom. A filter box is fixedly installed at the front end of the fixing pipe. A connecting pipe is fixedly installed at the front end of the filter box. Filter plates are snapped together on the inner side of the filter box near the front and rear sides. A mounting bracket is fixedly installed on the top of the filter plate. Positioning holes are opened on the left and right sides of the mounting bracket. An installation component is provided inside the filter box. The double filter plate design enhances the filtration effect. At the same time, the installation component enables quick installation and removal of the filter plates. Compared with traditional fixed filter screens, it significantly shortens maintenance time and reduces the impact of downtime for cleaning on work efficiency. The guide plate inside the filter box can guide impurities to settle. With the help of the discharge pipe, preliminary cleaning can be performed without stopping the machine, extending the clogging cycle of the filter plates.
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Description

Technical Field

[0001] This utility model relates to the field of vertical centrifugal pump technology, and in particular to a vertical centrifugal pump with a filtration function. Background Technology

[0002] A vertical centrifugal pump is a type of centrifugal pump in which the motor is located above the pump body, which is placed vertically with its axis pointing up and down. The motor shaft is directly connected to the pump shaft through a coupling. The impeller guide vanes are made of stainless steel plate by stamping and welding or stainless steel by precision casting. The pump inlet and outlet are on the same straight line at the bottom of the pump. This design makes vertical centrifugal pumps particularly suitable for situations with limited space, especially in machine rooms or pump rooms with dense equipment.

[0003] In the use of vertical centrifugal pumps, filters are used to filter impurities. However, over time, more and more impurities accumulate on the filter screen, causing blockage of the filter screen pores, affecting the normal flow of water. It is necessary to stop the use of the vertical centrifugal pump and disassemble and clean the filter screen, which wastes time, reduces the working efficiency of the vertical centrifugal pump, and affects the normal use of the vertical centrifugal pump.

[0004] Therefore, this utility model proposes a vertical centrifugal pump with filtration function to solve the problems existing in the prior art. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a vertical centrifugal pump with a filtration function. This solves the problem that in existing vertical centrifugal pumps, filter screens are used for impurity filtration. However, over time, more and more impurities accumulate on the filter screens, causing blockages and affecting the normal flow of water. This necessitates stopping the vertical centrifugal pump to disassemble and clean the filter screen, wasting time, reducing the pump's efficiency, and impacting its normal operation.

[0006] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a vertical centrifugal pump with filtration function, including a vertical centrifugal pump body, a fixing pipe fixedly installed on the front side of the vertical centrifugal pump body near the bottom, a filter box fixedly installed at the front end of the fixing pipe, a connecting pipe fixedly installed at the front end of the filter box, a filter plate snapped into place on the inner side of the filter box near the front and rear sides, a mounting bracket fixedly installed on the top of the filter plate, a handle fixedly installed at the center of the top of the mounting bracket, positioning openings on the left and right sides of the mounting bracket, an installation groove adapted to the mounting bracket on the top of the filter box, and an installation component provided inside the filter box for fixing the mounting bracket.

[0007] The installation assembly includes a bidirectional threaded screw, the left and right ends of which are rotatably connected to the inside of the filter box. An adjusting plate is fitted on the surface of the bidirectional threaded screw near the left and right ends and is threadedly connected to it. The side of the adjusting plate away from the bidirectional threaded screw passes through the inside of the filter box and is fixedly installed with a positioning plate. A positioning block that matches the positioning port is fixedly installed on the side of the positioning plate near the filter box.

[0008] A further improvement is that a mounting base is fixedly installed at the bottom of the vertical centrifugal pump body, and mounting holes are provided on the inner side of the mounting base near the four corners.

[0009] A further improvement is that a guide plate is fixedly installed at the bottom of the inner side of the filter box and between the two filter plates, and a discharge pipe is fixedly installed on the left side of the filter box near the bottom end, with an adjustment valve provided on the surface of the discharge pipe.

[0010] A further improvement is that: a first gear is sleeved on the surface of the bidirectional threaded screw near the center and fixedly connected thereto; a fixed frame is fixedly installed on the top of the filter box; a second gear that meshes with the top of the first gear is rotatably connected to the inner side of the fixed frame; and an adjusting block that drives the second gear to rotate is rotatably connected to the left side of the fixed frame.

[0011] A further improvement is that: the top of the filter box has a rotating opening for the second gear to rotate, the left and right sides of the filter box have connecting openings for the positioning block to pass through, and the inner side of the filter box has an adjusting groove for the adjusting plate to slide left and right.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The dual filter plate design enhances the filtration effect, while the installation components enable quick installation and removal of the filter plates, significantly reducing maintenance time compared to traditional fixed filters and minimizing the impact of downtime for cleaning on work efficiency.

[0014] 2. The baffle plate inside the filter box can guide the deposition of impurities, and together with the discharge pipe, it can perform preliminary cleaning without stopping the machine, extending the clogging cycle of the filter plate and further improving the overall efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a side sectional view of the filter box and mounting components of this utility model.

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a side view of the filter box and guide plate of this utility model.

[0019] Figure 5 This is a side view of the filter plate and mounting bracket of this utility model.

[0020] The components include: 1. Vertical centrifugal pump body; 2. Fixed pipe; 3. Filter box; 4. Connecting pipe; 5. Filter plate; 6. Mounting bracket; 7. Positioning port; 8. Mounting base; 9. Guide plate; 10. Discharge pipe; 11. Double-ended threaded screw; 12. Adjusting plate; 13. Adjusting groove; 14. Positioning plate; 15. Positioning block; 16. First gear; 17. Fixed frame; 18. Second gear; 19. Adjusting block. Detailed Implementation

[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0022] according to Figure 1-5 As shown, this embodiment proposes a solution: a vertical centrifugal pump with filtration function, including a vertical centrifugal pump body 1, a fixed pipe 2 fixedly installed on the front side of the vertical centrifugal pump body 1 near the bottom, a filter box 3 fixedly installed at the front end of the fixed pipe 2, a connecting pipe 4 fixedly installed at the front end of the filter box 3, a filter plate 5 snapped together on the inner side of the filter box 3 near the front and rear sides, a mounting bracket 6 fixedly installed on the top of the filter plate 5, a handle fixedly installed at the center of the top of the mounting bracket 6, positioning holes 7 opened on the left and right sides of the mounting bracket 6, an installation groove adapted to the mounting bracket 6 opened on the top of the filter box 3, and an installation component provided inside the filter box 3 for fixing the mounting bracket 6.

[0023] In this implementation case, the liquid enters the filter box 3 through the connecting pipe 4, and after being filtered by two filter plates 5 in sequence, the clean liquid enters the vertical centrifugal pump body 1 through the fixed pipe 2. The mounting bracket 6 is fixed in the mounting slot of the filter box 3 by the mounting components. The filtration effect can be enhanced by the filtration of the two filter plates 5, and the filtration effect of the device can be improved. The cooperation between the mounting bracket 6 and the mounting components makes it easier to disassemble and clean the filter plates 5. Compared with the traditional fixed filter screen, it can shorten the disassembly and assembly time and reduce the impact of downtime maintenance on work efficiency.

[0024] The mounting assembly includes a bidirectional threaded screw 11, with its left and right ends rotatably connected to the inside of the filter box 3. Adjusting plates 12 are fitted onto the surface of the bidirectional threaded screw 11 near its left and right ends and are threadedly connected to it. The side of the adjusting plate 12 away from the bidirectional threaded screw 11 passes through the inside of the filter box 3 and is fixedly mounted with a positioning plate 14. A positioning block 15, which is adapted to the positioning port 7, is fixedly mounted on the side of the positioning plate 14 near the filter box 3. When the bidirectional threaded screw 11 starts to rotate, the left and right adjusting plates 12 move synchronously in opposite directions, causing the positioning block 15 to insert into or disengage from the positioning port 7, thereby achieving quick fixing or loosening of the mounting bracket 6. This operation is more labor-saving and efficient. Compared with traditional bolt fixing, it can significantly shorten the disassembly and assembly time of the filter plate 5, reduce equipment downtime for maintenance, and improve work efficiency.

[0025] A mounting base 8 is fixedly installed at the bottom of the vertical centrifugal pump body 1. Mounting holes are opened on the inner side of the mounting base 8 near the four corners. The mounting base 8 is fixed to the foundation through the mounting holes at the four corners, so that the vertical centrifugal pump body 1 maintains a stable installation state and avoids structural loosening due to vibration during equipment operation.

[0026] A guide plate 9 is fixedly installed at the bottom of the inner side of the filter box 3 and between the two filter plates 5. A discharge pipe 10 is fixedly installed on the left side of the filter box 3 near the bottom. A regulating valve is provided on the surface of the discharge pipe 10. The guide plate 9 guides the flow of liquid in the filter box 3, so that impurities are collected at the bottom of the filter box 3 under the action of gravity and liquid flow. The deposited impurities can be discharged by opening the regulating valve of the discharge pipe 10. Preliminary cleaning can be performed without disassembling the filter plates 5.

[0027] A first gear 16 is fitted onto the surface of the bidirectional threaded screw 11 near the center and is fixedly connected to it. A fixed frame 17 is fixedly installed on the top of the filter box 3. A second gear 18 is rotatably connected to the inner side of the fixed frame 17 and meshes with the top of the first gear 16. An adjusting block 19 that drives the second gear 18 to rotate is rotatably connected to the left side of the fixed frame 17. Rotating the adjusting block 19 drives the second gear 18 to rotate, thereby driving the first gear 16 and the bidirectional threaded screw 11 to rotate through gear meshing.

[0028] The top of the filter box 3 has a rotating opening for the second gear 18 to rotate. The left and right sides of the filter box 3 have connecting openings for the positioning block 15 to pass through. The inside of the filter box 3 has an adjusting groove 13 for the adjusting plate 12 to slide left and right. The rotating opening provides rotation space for the second gear 18. The connecting opening allows the positioning block 15 to pass through the side wall of the filter box 3. The adjusting groove 13 restricts the sliding direction of the adjusting plate 12, making it slide stably and ensuring that all components of the installation assembly work together.

[0029] The above embodiment discloses a vertical centrifugal pump with filtration function. The filter plate 5 is engaged inside the filter box 3, and the mounting bracket 6 is installed inside the mounting groove. Rotating the adjusting block 19 drives the second gear 18 to rotate, which in turn drives the first gear 16 and the bidirectional threaded screw 11 to rotate. This causes the left and right adjusting plates 12 to move synchronously in opposite directions, causing the positioning block 15 to insert into or disengage from the positioning port 7. This allows for quick fixing or loosening of the mounting bracket 6, making operation more labor-saving and efficient. Compared to traditional bolt fixing, this significantly shortens the disassembly and assembly time of the filter plate 5, reduces equipment downtime for maintenance, and improves work efficiency. Liquid enters the filter box 3 through the connecting pipe 4 and is filtered sequentially by the two filter plates 5. The clean liquid then enters the vertical centrifugal pump body 1 through the fixing pipe 2. The mounting bracket 6 is fixed in the mounting groove of the filter box 3 by the mounting assembly. The filtration effect is enhanced by the two filter plates 5, improving the overall filtration efficiency of the device.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vertical centrifugal pump with filtering function, characterized in that: The system includes a vertical centrifugal pump body (1), a fixed pipe (2) is fixedly installed on the front side of the vertical centrifugal pump body (1) near the bottom, a filter box (3) is fixedly installed at the front end of the fixed pipe (2), a connecting pipe (4) is fixedly installed at the front end of the filter box (3), a filter plate (5) is snapped on the inner side of the filter box (3) near the front and rear sides, a mounting bracket (6) is fixedly installed on the top of the filter plate (5), a handle is fixedly installed at the center of the top of the mounting bracket (6), positioning holes (7) are opened on the left and right sides of the mounting bracket (6), an installation groove adapted to the mounting bracket (6) is opened on the top of the filter box (3), and an installation component is provided inside the filter box (3) for fixing the mounting bracket (6). The installation assembly includes a bidirectional threaded screw (11), the left and right ends of which are rotatably connected to the inside of the filter box (3). An adjusting plate (12) is fitted on the surface of the bidirectional threaded screw (11) near the left and right ends and is threadedly connected to it. The adjusting plate (12) extends through the inside of the filter box (3) on the side away from the bidirectional threaded screw (11) and is fixedly installed with a positioning plate (14). A positioning block (15) that matches the positioning port (7) is fixedly installed on the side of the positioning plate (14) near the filter box (3).

2. A vertical centrifugal pump with filtration function according to claim 1, characterized in that: The bottom of the vertical centrifugal pump body (1) is fixedly installed with a mounting base (8), and mounting holes are opened on the inner side of the mounting base (8) near the four corners.

3. A vertical centrifugal pump with filtration function according to claim 1, characterized in that: A guide plate (9) is fixedly installed on the bottom inner side of the filter box (3) and between the two filter plates (5). A discharge pipe (10) is fixedly installed on the left side of the filter box (3) near the bottom end. An adjustment valve is provided on the surface of the discharge pipe (10).

4. A vertical centrifugal pump with filtration function according to claim 1, characterized in that: The first gear (16) is sleeved on the surface of the bidirectional threaded screw (11) near the center and is fixedly connected to it. A fixed frame (17) is fixedly installed on the top of the filter box (3). A second gear (18) that meshes with the top of the first gear (16) is rotatably connected to the inside of the fixed frame (17). An adjusting block (19) that drives the second gear (18) to rotate is rotatably connected to the left side of the fixed frame (17).

5. A vertical centrifugal pump with filtration function according to claim 4, characterized in that: The filter box (3) has a rotating opening at the top for the second gear (18) to rotate, and the filter box (3) has a connecting opening on the left and right sides for the positioning block (15) to pass through. The filter box (3) has an adjusting groove (13) on the inside for the adjusting plate (12) to slide left and right.