CN220185468U

CN220185468U - Multistage centrifugal pump

Info

Publication number: CN220185468U
Application number: CN202321196846.8U
Authority: CN
Inventors: 周金兆
Original assignee: Jiangsu Beiyuan Pump Industry Co ltd
Current assignee: Jiangsu Beiyuan Pump Industry Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-12-15
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a multistage centrifugal pump, which relates to the technical field of centrifugal pumps and comprises a bottom plate, wherein a centrifugal pump body is arranged above the bottom plate, a filter cartridge is arranged on one side of the centrifugal pump body, a filter plate is fixedly connected to the inside of the filter cartridge, a plurality of first filter holes are formed in the filter plate, a rotating shaft is arranged on one side, facing away from the centrifugal pump body, of the filter plate, the rotating shaft is rotationally connected to the filter plate, a slot is formed in one end, close to the filter plate, of the rotating shaft, an insert block is inserted into the slot, and the insert block is fastened in the slot through a screw. This multistage centrifugal pump, the pivot drives scrapes the box and scrapes the strip and pushes away the filter surface and scrape, pushes away the in-process of scraping, and the impurity gets into the inside of scraping the box by the long mouth, and gets into the inside water of scraping the box and flows out by the second filtration pore. Set up to scrape the box and scrape the strip and push away the filter, collect impurity simultaneously, prevent that the filter from appearing blockking up, improve the availability factor of centrifugal pump body.

Description

Multistage centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a multistage centrifugal pump.

Background

Multistage centrifugal pumps are suitable for delivering thin clean, nonflammable liquids that do not contain solid particles or fibers, and are widely used in domestic, industrial, agricultural and water treatment facilities. When the multistage centrifugal pump works, the motor drives the multistage impeller to rotate at a high speed, liquid filled in the first-stage impeller receives the action of the blades of the first-stage impeller, so that the pressure and the speed are increased simultaneously, the liquid is led to the impeller of the next stage through the flow channel of the guide shell, so that the pressure energy of the liquid is increased gradually through all impellers and the guide shell, when the liquid flows out from the water outlet of the pump body, vacuum or low pressure is formed at the inlet of the impeller due to the discharge of the liquid, the subsequent liquid is continuously pressed into the inlet of the impeller, and then the rotating multistage impeller continuously sucks and discharges the liquid.

The current multistage centrifugal pump is in the use, sets up the filter screen generally and carries out filtration to the impurity in the aquatic, and just set up the filter screen at the water inlet of the pump body and nevertheless can play the effect of filtration impurity, but the impurity is blocked on the mesh of filter screen easily, along with the piling up of impurity, can make the centrifugal pump take place to block up, finally leads to the unable normal work of centrifugal pump.

Therefore, it is necessary to invent a multistage centrifugal pump to solve the above problems.

Disclosure of Invention

The present utility model is directed to a multistage centrifugal pump to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multistage centrifugal pump, includes the bottom plate, the top of bottom plate sets up the centrifugal pump body, one side of centrifugal pump body is provided with the cartridge filter, the inside fixedly connected with filter of cartridge filter, a plurality of first filtration pore has been seted up to the inside of filter, one side that the filter was back to the centrifugal pump body is provided with the pivot, the pivot rotates to be connected on the filter, the slot has been seted up to the one end that the pivot is close to the filter, the inside grafting of slot has the inserted block, the inserted block passes through the screw fastening in the slot, be provided with the clearance subassembly of scraping the filter on the inserted block.

Preferably, the cleaning assembly comprises a scraping box and a scraping strip, the scraping box is fixedly connected to the inserting block, the scraping strip is fixedly connected to the outer wall of the scraping box, and the scraping strip and the scraping box are in sliding fit on the filter plate.

Preferably, a long opening is formed in a side wall body, close to the scraping strip, of the scraping box, and the long opening is distributed along the length direction of the scraping strip.

Preferably, a side wall body of the scraping box far away from the long opening is provided with a plurality of second filtering holes.

Preferably, the one end fixedly connected with paddle that the filter was kept away from to the pivot, the paddle sets up to three, and three paddle are around the outside evenly distributed at the pivot.

Preferably, a square opening is formed in the top of the filter cartridge, a cover plate is connected to the square opening in a clamping mode, and a handle is fixedly connected to the outer wall of the cover plate.

Preferably, the one end intercommunication that cartridge filter is close to the centrifugal pump body has first inlet tube, the one end intercommunication that cartridge filter was kept away from to first inlet tube is on the centrifugal pump body water inlet end, the one end intercommunication that cartridge filter kept away from first inlet tube has the second inlet tube.

Preferably, the upper surface fixedly connected with first base of bottom plate, centrifugal pump body fixed connection is at the top of first base, the upper surface fixedly connected with second base of bottom plate, cartridge filter fixed connection is at the top of second base.

The utility model has the technical effects and advantages that:

1. under the suction effect of the centrifugal pump body, when water flows through the paddles, the paddles drive the rotating shaft to rotate, the rotating shaft rotates to drive the scraping box and the scraping strip to push and scrape the surface of the filter plate, impurities enter the scraping box through the long opening in the pushing and scraping process, and water entering the scraping box flows out of the second filtering holes. The scraping box and the scraping strip are arranged to push and scrape the filter plate, and meanwhile impurities are collected, so that the filter plate is prevented from being blocked, and the service efficiency of the centrifugal pump body is improved;

2. the cover plate is pulled by the handle, the square opening is opened, and then the scraping box and the scraping strip are detached for impurity treatment or replacement.

Drawings

Fig. 1 is a schematic view of the multistage centrifugal pump according to the present utility model.

Fig. 2 is a schematic view showing the structure of the filter cartridge, the filter plate, the first filter hole and the rotating shaft according to the present utility model.

FIG. 3 is a schematic view of the structure of the scraping box, the long opening, the scraping strip and the inserting block of the utility model.

FIG. 4 is a schematic view of the slot, shaft and blade structure of the present utility model.

In the figure: 1. a bottom plate; 2. a centrifugal pump body; 3. a first base; 4. a second base; 5. a filter cartridge; 6. a filter plate; 7. a first filter aperture; 8. a rotating shaft; 9. a paddle; 10. a slot; 11. inserting blocks; 12. scraping a box; 13. a long opening; 14. scraping the strip; 15. a second filter aperture; 16. a screw; 17. a square opening; 18. a cover plate; 19. a handle; 20. a first water inlet pipe; 21. and a second water inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present utility model will be made clear below in conjunction with the drawings in the embodiments of the present utility model; it will be apparent that the embodiments described are only some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a multistage centrifugal pump as shown in fig. 1-4, which comprises a bottom plate 1, wherein a centrifugal pump body 2 is arranged above the bottom plate 1. One side of the centrifugal pump body 2 is provided with a filter cartridge 5, and the filter cartridge 5 is arranged to filter water entering the centrifugal pump body 2, so that the service efficiency of the centrifugal pump body 2 is improved. The inside fixedly connected with filter cartridge 5 is filtered board 6, and a plurality of first filtration pore 7 has been seted up to the inside of filter board 6, and under centrifugal pump body 2 suction effect, when rivers pass through filter board 6, first filtration pore 7 carries out filtration treatment to the impurity in the aquatic. A rotating shaft 8 is arranged on one side of the filter plate 6, which is away from the centrifugal pump body 2, and the rotating shaft 8 is rotationally connected to the filter plate 6. One end of the rotating shaft 8, which is far away from the filter plate 6, is fixedly connected with three paddles 9, and the three paddles 9 are uniformly distributed around the outer part of the rotating shaft 8. Under the suction effect of the centrifugal pump body 2, when water flows through the blades 9, the blades 9 drive the rotating shaft 8 to rotate. A slot 10 is formed in one end, close to the filter plate 6, of the rotating shaft 8, an inserting block 11 is inserted into the slot 10, and the inserting block 11 is fastened in the slot 10 through a screw 16. The insert 11 and the insert 11 are arranged to facilitate the disassembly and replacement of the scraper box 12 and the scraper bar 14. The insert block 11 is provided with a cleaning component for pushing and scraping the filter plate 6, and the cleaning component is used for cleaning impurities on the surface of the filter plate 6.

During operation, under the suction effect of the centrifugal pump body 2, when water flows through the blades 9, the rotating shaft 8 is driven to rotate through the blades 9, the rotating shaft 8 rotates to drive the scraping box 12 and the scraping strip 14 to push and scrape the surface of the filter plate 6, impurities enter the scraping box 12 through the long opening 13 in the pushing and scraping process, and water entering the scraping box 12 flows out through the second filtering holes 15. The scraping box 12 and the scraping strip 14 are arranged to push and scrape the filter plate 6, meanwhile, impurities are collected, the filter plate 6 is prevented from being blocked, and the service efficiency of the centrifugal pump body 2 is improved.

In particular arrangements, the cleaning assembly includes a scraper box 12 and a scraper bar 14. The scraping box 12 is fixedly connected to the inserting block 11, the scraping strip 14 is fixedly connected to the outer wall of the scraping box 12, and the scraping strip 14 and the scraping box 12 are both in sliding fit with the filter plate 6. The scraping strip 14 is positioned at the front end of the scraping box 12 in the rotating direction, and the rotating shaft 8 rotates to drive the scraping box 12 and the scraping strip 14 to push and scrape the surface of the filter plate 6.

A long opening 13 is formed in a side wall body of the scraping box 12, which is close to the scraping strip 14, and the long openings 13 are distributed along the length direction of the scraping strip 14. A side wall body of the scraping box 12 far away from the long opening 13 is provided with a plurality of second filtering holes 15. During pushing and scraping, impurities enter the inside of the scraping box 12 through the long opening 13, and water entering the inside of the scraping box 12 flows out through the second filtering holes 15. During rotation, when the long opening 13 faces downwards, impurities in the scraping box 12 still stay in the scraping box 12 due to resistance of water flow and cannot fall off due to the fact that the rotating speed of the scraping box 12 is high.

Considering the impurity to scrape the inside of box 12 and handling, square mouth 17 has been seted up at cartridge filter 5's top, and the inside block of square mouth 17 is connected with apron 18, fixedly connected with handle 19 on the outer wall of apron 18. When the sealing device is particularly used, sealing strips are arranged on the periphery of the cover plate 18, so that the sealing effect of the opposite opening 17 is improved.

The cover plate 18 is pulled by the handle 19 to open the square opening 17, so that the scraping box 12 and the scraping strip 14 are detached for impurity treatment or replacement.

The one end intercommunication that cartridge filter 5 is close to centrifugal pump body 2 has first inlet tube 20, and the one end intercommunication that cartridge filter 5 was kept away from to first inlet tube 20 is on centrifugal pump body 2 water inlet. The end of the filter cartridge 5 remote from the first inlet conduit 20 is connected to a second inlet conduit 21. The water enters the filter cartridge 5 from the second water inlet pipe 21 for filtering treatment, and then enters the centrifugal pump body 2 from the first water inlet pipe 20.

The upper surface fixedly connected with first base 3 of bottom plate 1, centrifugal pump body 2 fixed connection is at the top of first base 3. The upper surface fixedly connected with second base 4 of bottom plate 1, cartridge filter 5 fixed connection is at the top of second base 4.

Claims

1. Multistage centrifugal pump, comprising a bottom plate (1), characterized in that: the centrifugal pump is characterized in that a centrifugal pump body (2) is arranged above the bottom plate (1), a filter cartridge (5) is arranged on one side of the centrifugal pump body (2), a filter plate (6) is fixedly connected to the inside of the filter cartridge (5), a plurality of first filter holes (7) are formed in the filter plate (6), a rotating shaft (8) is arranged on one side, opposite to the centrifugal pump body (2), of the filter plate (6), the rotating shaft (8) is rotationally connected to the filter plate (6), a slot (10) is formed in one end, close to the filter plate (6), of the rotating shaft (8), an inserting block (11) is inserted into the slot (10), the inserting block (11) is fastened in the slot (10) through a screw (16), and a cleaning assembly for pushing and scraping the filter plate (6) is arranged on the inserting block (11).

2. A multistage centrifugal pump according to claim 1, wherein: the cleaning assembly comprises a scraping box (12) and a scraping strip (14), the scraping box (12) is fixedly connected to the inserting block (11), the scraping strip (14) is fixedly connected to the outer wall of the scraping box (12), and the scraping strip (14) and the scraping box (12) are all in sliding fit with each other on the filter plate (6).

3. A multistage centrifugal pump according to claim 2, wherein: a long opening (13) is formed in one side wall body, close to the scraping strip (14), of the scraping box (12), and the long openings (13) are distributed along the length direction of the scraping strip (14).

4. A multistage centrifugal pump according to claim 2, wherein: a plurality of second filtering holes (15) are formed in a side wall body, far away from the long opening (13), of the scraping box (12).

5. A multistage centrifugal pump according to claim 1, wherein: one end of the rotating shaft (8) far away from the filter plate (6) is fixedly connected with paddles (9), the paddles (9) are three, and the three paddles (9) are uniformly distributed around the outside of the rotating shaft (8).

6. A multistage centrifugal pump according to claim 1, wherein: square mouth (17) has been seted up at the top of cartridge filter (5), the inside block of square mouth (17) is connected with apron (18), fixedly connected with handle (19) on the outer wall of apron (18).

7. A multistage centrifugal pump according to claim 1, wherein: the one end intercommunication that cartridge filter (5) are close to centrifugal pump body (2) has first inlet tube (20), the one end intercommunication that cartridge filter (5) were kept away from to first inlet tube (20) is on centrifugal pump body (2) water inlet end, the one end intercommunication that cartridge filter (5) were kept away from first inlet tube (20) has second inlet tube (21).

8. A multistage centrifugal pump according to claim 1, wherein: the centrifugal pump is characterized in that a first base (3) is fixedly connected to the upper surface of the bottom plate (1), the centrifugal pump body (2) is fixedly connected to the top of the first base (3), a second base (4) is fixedly connected to the upper surface of the bottom plate (1), and the filter cartridge (5) is fixedly connected to the top of the second base (4).