Anti-blocking device for inlet of slurry submerged pump

Abstract

The utility model relates to a slurry submerged pump inlet anti-blocking device which comprises a cylindrical filter screen and an upper cover body arranged on the cylindrical filter screen, the cylindrical filter screen is provided with an inner ring plate, an outer ring plate and a bottom plate, the inner ring plate, the outer ring plate and the bottom plate are provided with a plurality of feeding holes, the inner ring plate is further provided with a plurality of flushing holes, and the upper cover body is arranged on the cylindrical filter screen. The cylindrical filter screen is further connected with a flushing pipe, and the flushing pipe is communicated with the flushing holes through a plurality of liquid cavities formed between the inner ring plate and the outer ring plate. The washing function can be achieved, accumulated materials can be cleaned according to needs, and the blocking problem is solved.

Description

Technical Field

[0001] The utility model relates to a fluid pump, in particular to an anti-blocking device for preventing the inlet of a slurry submerged pump from being blocked. Background Art

[0002] When the slurry submersible pump is sucking slurry materials, it often causes the pump to jump or be damaged due to the accumulation of granular materials on the inlet filter. Especially when the density difference of the slurry objects is large and the sedimentation is stratified, the inlet of the submersible pump is blocked by material particles when it is working, filling the inlet and impeller flow channel, causing blockage, which is a problem that troubles the normal operation of the equipment. In order to deal with the blockage, the industry usually adds a filter screen at the inlet, but a single filter screen can easily cause the inlet filter screen to block the pump and cause the pump to run empty. Therefore, effectively solving the blockage of the inlet of the slurry submersible pump is a problem that urgently needs to be solved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a slurry submersible pump inlet anti-blocking device, which has an integrated filter screen, can realize the flushing function, can clean up the accumulated materials as needed, and solve the blockage problem.

[0004] In order to solve the above technical problems, the technical solution adopted for the utility model is: a slurry submersible pump inlet anti-blocking device, comprising a cylindrical filter screen and an upper cover body arranged thereon, the cylindrical filter screen having an inner ring plate, an outer ring plate and a bottom plate, the inner ring plate, the outer ring plate and the bottom plate having a plurality of feed holes, characterized in that the inner ring plate also has a plurality of flushing holes, the cylindrical filter screen is also connected to a flushing pipe, and the flushing pipe is connected to the flushing holes through a plurality of liquid cavities arranged between the inner ring plate and the outer ring plate.

[0005] Furthermore, the anti-blocking device is connected to the slurry submersible pump through the upper cover body. The diameter of the flushing hole is smaller than the diameter of the feed hole. The feed hole and the flushing hole are evenly arranged.

[0006] The beneficial effects that the utility model can achieve are:

[0007] 1. The anti-blocking device of the utility model has an integrated structural design, which is convenient and quick to disassemble and assemble.

[0008] 2. The utility model can adjust the flushing water volume according to the content of particles in the slurry material, dilute the material, and effectively solve the problem of blockage of the pump inlet due to the accumulation of particles.

[0009] 3. The flushing water of the utility model is evenly distributed in the liquid cavity, ensuring the flushing effect of the evenly distributed flushing holes.

[0010] In order to solve the above technical problems, the technical solution adopted by the utility model is: BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Stereogram of a slurry submerged pump with an anti-blocking device according to an embodiment of the present utility model;

[0012] Figure 2 Schematic diagram of an anti-blocking device for the inlet of a slurry submerged pump according to an embodiment of the present utility model;

[0013] Figure 3 Cross-sectional view of an anti-blocking device for the inlet of a slurry submerged pump according to an embodiment of the present utility model;

[0014] Figure 4 is Figure 3 enlarged view of part A in

[0015] Description of reference numerals:

[0016] 1 filter screen; 10 upper cover body; 100 threaded hole; 11 inner ring plate; 110 flushing hole; 12 outer ring plate; 13 bottom plate; 14 flushing pipe; 140 flange; 15 liquid cavity; 16 feed hole; 2 slurry submerged pump; 20 motor; 21 machine base; 22 upper connecting pipe; 23 lower connecting pipe; 24 pump cover; 25 pump body; 250 pump body flange; 2500 bolt hole; 26 discharge pipe; 27 water pipe; 270 flange; 30 single-headed bolt; 31 stud; 32 hexagon nut; 4 gasket. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0018] As Figures 1-4 shown, it is an embodiment of an anti-blocking device for the inlet of a slurry submerged pump of the present utility model. Refer to Figure 1 , the anti-blocking device for the inlet of the slurry submerged pump in this embodiment includes a cylindrical filter screen 1, on which there is an upper cover body 10. The cylindrical filter screen 1 includes an inner ring plate 11, an outer ring plate 12 and a bottom plate 13. A flushing pipe 14 is also provided on the side of the cylindrical filter screen 1. The slurry submerged pump 2 is successively from top to bottom a motor 20, a machine base 21, an upper connecting pipe 22, a lower connecting pipe 23, a pump cover 24, a pump body 25, and a water pipe 27 and a discharge pipe 26 are arranged on the side. Below the pump body 25 is a pump body flange 250, and a flange 270 is provided at the lower end of the water pipe 27.

[0019] Further refer to Figure 2 , Figure 3 , Figure 4As shown in the figure, evenly distributed bolt holes 2500 are provided on the pump body flange 250, and evenly distributed threaded holes 100 are provided on the upper cover body 10 of the cylindrical filter screen 1. A single-headed bolt 30 passes through the bolt holes 2500 of the pump body flange 250 and is fastened in the threaded holes 100 of the upper cover body 10 to connect and fix the pump body 25 to the cylindrical filter screen 1.

[0020] The outer ring plate 12, the inner ring plate 11 and the bottom plate are evenly provided with feed holes 16. The inner ring plate 11 is circumferentially provided with evenly distributed flushing holes 110, and the diameter of the flushing holes 110 is smaller than the diameter of the feed holes 16. A liquid chamber 15 is also provided between the inner ring plate 11 and the outer ring plate 12 and communicates with each flushing hole 11. The other end of the liquid chamber 15 communicates with the flushing pipe 14. A flange 140 provided above the flushing pipe 14 and a flange 270 below the water pipe 27 are connected by bolts 31 and hexagon nuts 32. A gasket 4 is provided between the lower flange 270 of the water pipe and the upper flange 140 of the flushing pipe. The lower end of the flushing pipe 14 is connected to the outer ring plate 12. The flushing liquid entering from the water pipe 27 will flow through the flushing pipe 14 into the liquid chamber 15 for distribution and finally spray out through the flushing holes 110.

[0021] The working principle of the present utility model is as follows. In combination with Figures 1-4 , when the slurry submerged pump 2 is working, the material continuously surges into the pump inlet. When the particulate content is too high, a blockage phenomenon will occur. At this time, it is necessary to turn on the flushing water so that the flushing water is evenly distributed in the liquid chamber 15 and sprays out through the flushing holes 110 of the inner ring plate 11, diluting the particulate slurry to a certain proportion and solving the blockage problem caused by the accumulation of particulate materials at the pump inlet.

[0022] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A slurry submersible pump inlet anti-blocking device, comprising a cylindrical filter screen and an upper cover body arranged thereon, wherein the cylindrical filter screen has an inner ring plate, an outer ring plate and a bottom plate, and the inner ring plate, the outer ring plate and the bottom plate have a plurality of feed holes, characterized in that: The inner ring plate is also provided with a plurality of flushing holes, and the cylindrical filter screen is also connected with a flushing pipe, which is connected with the flushing holes through a plurality of liquid chambers arranged between the inner ring plate and the outer ring plate.

2. The anti-blocking device for the inlet of a slurry submersible pump according to claim 1 is characterized in that: The anti-blocking device is connected to the slurry submersible pump through the upper cover body.

3. A slurry submersible pump inlet anti-blocking device according to claim 2, characterized in that: The flushing hole diameter is smaller than the feed hole diameter.

4. The anti-blocking device for the inlet of a slurry submersible pump according to claim 1, characterized in that: The feed holes and flushing holes are evenly arranged.

Images