Filtering device of vertical pump

Abstract

The utility model discloses a filter device of a vertical pump, which comprises a filter screen plate arranged in a water inlet of the vertical pump, the water inlet of the vertical pump is as high as a water outlet, the water inlet of the vertical pump is curved, the side wall of the water inlet of the vertical pump is provided with a mounting hole site, and the filter screen plate is connected with a sealing cover plate. The filter screen plate goes deep into the water inlet of the vertical pump through the mounting hole site and abuts against the inner side wall of the water inlet of the vertical pump, and the sealing cover plate seals the mounting hole site. Water entering the water inlet of the vertical pump is filtered by the filter screen plate and then passes through the impeller, and impurities in the water are filtered by the filter screen plate, so that the impeller is prevented from being abraded by the impurities. A worker can take out the filter screen plate from the water inlet of the vertical pump by detaching the sealing cover plate, and the filter screen plate is convenient to mount and replace.

Description

Technical Field

[0001] This utility model relates to vertical pumps, specifically to filtration devices. Background Technology

[0002] A vertical pump is a type of water pump installed perpendicular to the pipeline. It transports liquids by changing the water flow velocity within the pipeline through impeller rotation. Vertical pumps used in natural lakes and deep wells are prone to impurities in the pipeline causing impeller wear, necessitating periodic impeller replacement. Utility Model Content

[0003] The technical problem solved by this utility model is: how to filter impurities in the pipeline to prevent them from causing wear on the impeller.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a filtration device for a vertical pump, including a filter screen plate disposed in the inlet of the vertical pump, the inlet of the vertical pump being at the same height as the outlet, the inlet of the vertical pump being curved, and mounting holes being provided on the side wall of the inlet of the vertical pump, the filter screen plate being connected to a sealing cover plate, the filter screen plate being inserted into the inlet of the vertical pump through the mounting holes and pressing against the inner side wall of the inlet of the vertical pump, and the sealing cover plate sealing the mounting holes.

[0005] According to the above technical solution, the water entering the vertical pump inlet is filtered by the filter screen before passing through the impeller. The filter screen filters impurities in the water, preventing them from wearing down the impeller. Since the filter screen is connected to the sealing cover, workers can easily remove the filter screen from the vertical pump inlet by disassembling the sealing cover; therefore, the installation and replacement of the filter screen are convenient. Furthermore, workers can use the mounting holes to clean the filtered impurities out of the vertical pump inlet. In addition, the mounting holes also serve as drain outlets.

[0006] The curved vertical pump inlet has a trough, with the filter screen located on the upper left of the trough and the sealing cover on the upper right. Impurities filtered by the filter screen settle precisely in the trough, which concentrates and holds more impurities, preventing them from scattering and facilitating easy cleaning. When the filter screen is removed, it passes through the trough, scraping impurities from the trough out of the mounting holes – this is how impurities are cleaned.

[0007] The filter screen is connected to the sealing cover by a pair of connecting strips. The connecting strips can be spring-loaded to ensure that the positions of the filter screen and the sealing cover are properly adjusted.

[0008] A connecting plate is welded to the filter screen. One end of the connecting strip is welded to the connecting plate, and the other end of the connecting strip is provided with a bending structure. The bending structure is connected to the sealing cover plate by a threaded connector.

[0009] The filter plate includes a filter screen and an annular component surrounding the filter screen. A first sealing ring is wrapped around the annular component. The first sealing ring is in close contact with the inner wall of the vertical pump inlet.

[0010] A second sealing ring is bonded to the inner wall of the sealing cover plate, and the second sealing ring fits into the mounting hole. The sealing cover plate is installed on the outer wall of the vertical pump inlet through a threaded connector.

[0011] This new type of filter screen is easy to replace and can clean impurities deposited in the inlet of a vertical pump. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the filter device 200 installed in a vertical pump;

[0014] Figure 2 for Figure 1 Schematic diagram of the intermediate filter device 200;

[0015] Figure 3 for Figure 2 View from direction A.

[0016] Explanation of symbols in the diagram:

[0017] 10. Vertical pump inlet; 11. Drain outlet; 12. Mounting hole; 13. Low point; 14. Impeller; 15. Main shaft;

[0018] 200. Filter device; 20. Filter screen; 21. Connecting plate; 22. Filter screen; 23. Annular component; 24. First sealing ring;

[0019] 30. Sealing cover plate; 31. Connecting strip; 32. Bending structure; 33. Second sealing ring. Detailed Implementation

[0020] Combination Figures 1 to 3 A filtration device for a vertical pump includes a filter screen 20 disposed in the inlet 10 of the vertical pump. The inlet 10 and the outlet 11 of the vertical pump are at the same height. The inlet 10 is curved. Mounting holes 12 are provided on the side wall of the inlet 10. The filter screen is connected to a sealing cover 30. The filter screen extends into the inlet 10 through the mounting holes and presses against the inner side wall of the inlet 10. The sealing cover seals the mounting holes.

[0021] The curved vertical pump inlet 10 has a trough 13, the filter screen 20 is located on the upper left of the trough, and the sealing cover 30 is located on the upper right of the trough.

[0022] The filter screen 20 is connected to the sealing cover 30 by a pair of connecting strips 31.

[0023] A connecting plate 21 is welded onto the filter screen 20. One end of the connecting strip 31 is welded to the connecting plate, and the other end of the connecting strip is provided with a bending structure 32. The bending structure is connected to the sealing cover plate 30 through a threaded connector.

[0024] The filter plate 20 includes a filter screen 22 and an annular member 23 surrounding the filter screen. A first sealing ring 24 is wrapped around the annular member.

[0025] A second sealing ring 33 is bonded to the inner wall of the sealing cover plate 30. The second sealing ring fits in the mounting hole 12. The sealing cover plate is installed on the outer wall of the vertical pump inlet 10 through a threaded connector.

[0026] refer to Figure 1 Water entering the vertical pump inlet 10 is filtered by the filter screen 20 and then passes through the impeller 14. The filter screen 20 filters impurities in the water, preventing them from wearing down the impeller. The impeller 14 is driven by the main shaft 15, which is connected to the motor shaft. The motor is mounted above the vertical pump. The filter screen 20 is positioned to the upper left of the trough 13, where impurities filtered by the filter screen 20 are deposited. The trough 13 can hold a larger amount of impurities.

[0027] Since the filter screen 20 and the sealing cover 30 are connected by a connecting strip 31, workers can remove the filter screen 20 from the vertical pump inlet 10 by disassembling the sealing cover 30. Therefore, the installation and replacement of the filter screen 20 are convenient. When the filter screen 20 is removed, it passes through the trough 13, which can scrape impurities in the trough out of the mounting hole 12.

[0028] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A filtration device for a vertical pump, comprising a filter screen (20) disposed in the inlet (10) of the vertical pump, wherein the inlet (10) and outlet (11) of the vertical pump are at the same height, and the inlet (10) of the vertical pump is curved, characterized in that: An installation hole (12) is opened on the side wall of the vertical pump inlet. The filter screen is connected to the sealing cover (30). The filter screen extends into the vertical pump inlet through the installation hole and presses against the inner side wall of the vertical pump inlet. The sealing cover seals the installation hole.

2. The filtration device for the vertical pump as described in claim 1, characterized in that: The curved vertical pump inlet (10) has a trough (13), the filter screen (20) is located on the upper left of the trough, and the sealing cover (30) is located on the upper right of the trough.

3. The filtration device for the vertical pump as described in claim 1, characterized in that: The filter screen (20) is connected to the sealing cover (30) by a pair of connecting strips (31).

4. The filtration device for the vertical pump as described in claim 3, characterized in that: A connecting plate (21) is welded onto the filter screen (20). One end of the connecting strip (31) is welded to the connecting plate, and the other end of the connecting strip is provided with a bending structure (32). The bending structure is connected to the sealing cover plate (30) by a threaded connector.

5. The filtration device for the vertical pump as described in claim 1, characterized in that: The filter plate (20) includes a filter screen (22) and an annular member (23) surrounding the filter screen. A first sealing ring (24) is wrapped around the annular member.

6. The filtration device for the vertical pump as described in claim 1, characterized in that: A second sealing ring (33) is bonded to the inner wall of the sealing cover (30). The second sealing ring fits in the mounting hole (12). The sealing cover is installed on the outer wall of the vertical pump inlet (10) through a threaded connector.

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