CN219472364U

CN219472364U - Anti-backflow submersible pump

Info

Publication number: CN219472364U
Application number: CN202320168251.5U
Authority: CN
Inventors: 郑军; 黄林
Original assignee: Nanjing Lanying Environmental Technology Co ltd
Current assignee: Nanjing Lanying Environmental Technology Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-08-04
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a backflow-preventing submersible pump which comprises a pump body, wherein the bottom end of the pump body is fixedly connected with a working shell, the bottom end of the working shell is fixedly connected with a supporting shell, the bottom end of the supporting shell is fixedly connected with a filter screen, one side of the outer surface of the working shell is fixedly connected with a water outlet pipe, one end of the water outlet pipe is fixedly connected with a control box, and the top end of the control box is fixedly connected with a connecting pipe in a penetrating manner. According to the utility model, through the control box and the automatic closing mechanism, when the submersible pump stops working, the water outlet pipe can be automatically plugged, so that liquid is prevented from flowing back into the submersible pump, damage to the inside is avoided, the service life is prolonged, and through the backflow mechanism and the cleaning mechanism, the backflow liquid can be sprayed out into the filter screen in a rotating way, so that the filter screen is washed from inside to outside, and the plugging condition of the filter screen is reduced.

Description

Anti-backflow submersible pump

Technical Field

The utility model relates to the technical field of submersible pumps, in particular to a backflow-preventing submersible pump.

Background

The submersible pump is an important device for deep well water extraction. When in use, the whole electric submersible pump unit is immersed into water to work, extracts groundwater to the ground surface, is domestic water, mine emergency, industrial cooling, farm irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscapes, and the electric submersible pump unit consists of: the water pump, the submersible motor (comprising a cable), the water pipe and the control switch are composed of four parts;

the existing submerged pump structure is fixed, liquid backflow is easy to occur during use, water with larger pressure enters the submerged pump, damage is caused to the submerged pump, corresponding backflow prevention devices are arranged for avoiding backflow, backflow liquid is led out, and backflow liquid cannot be well utilized, so that waste is caused.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a backflow-preventing submersible pump.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a backflow preventing immersible pump, includes the pump body, the bottom fixedly connected with work shell of the pump body, the bottom fixedly connected with of work shell supports the shell, the bottom fixedly connected with filter screen of support shell, surface one side fixedly connected with outlet pipe of work shell, the one end fixedly connected with control box of outlet pipe, the top of control box runs through fixedly connected with connecting pipe, the internally mounted of control box has automatic closing mechanism, the surface one side of control box runs through fixedly connected with backflow mechanism, support the internally mounted of shell have with filter screen matched with clearance mechanism, just clearance mechanism cooperatees with backflow mechanism.

Further, the inside of the pump body is fixedly provided with a controller and a driving motor in sequence, the inside of the working shell is rotationally connected with an impeller, and the impeller is fixedly connected with an output shaft of the driving motor.

Further, the automatic closing mechanism comprises two sealing plates, the two sealing plates are respectively connected with two sides of the inner wall of the control box in a rotating mode, a supporting pipe communicated with the water outlet pipe is fixedly connected to the inner bottom of the control box, a sealing pad contacted with the sealing plates is fixedly connected to the top end of the supporting pipe, and torsion springs are fixedly connected between the two ends of the sealing plates and the inner wall of the control box.

Further, the backflow mechanism comprises a mounting plate fixedly connected with the outer surface of the water outlet pipe, a conveying pump is fixedly arranged on one side of the mounting plate, a backflow pipe is fixedly connected between the input end of the conveying pump and the control box, a conveying pipe is fixedly connected between the output end of the conveying pump and the supporting shell, one end of the conveying pipe is obliquely arranged, and a control valve is fixedly arranged on the outer surface of the backflow pipe.

Further, the cleaning mechanism comprises a supporting ring which is rotationally connected with the inner wall of the supporting shell, an annular groove which is communicated with the conveying pipe is formed in the outer surface of the supporting ring, a turbine blade is fixedly connected with the inner wall of the annular groove, a U-shaped pipe is fixedly connected with the lower surface of the supporting ring, and a plurality of water outlets are sequentially formed in the outer surface of the U-shaped pipe.

Further, the upper surface and the lower surface of the support ring are both in sealing sliding connection with a sealing ring, and the outer surface of the sealing ring is fixedly connected with the inner wall of the support shell.

Further, one end fixedly connected with flange of connecting pipe, a plurality of connecting holes have been seted up to flange's surface.

The utility model has the beneficial effects that:

when the anti-backflow submersible pump is used, the control box and the automatic closing mechanism are arranged, so that the water outlet pipe can be automatically plugged when the submersible pump stops working, liquid is prevented from flowing back into the submersible pump, damage to the inside is avoided, the service life is prolonged, and the backflow liquid can be rotated and sprayed into the filter screen through the arranged backflow mechanism and the cleaning mechanism, so that the filter screen is washed from inside to outside, and the plugging condition of the filter screen is reduced.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the support shell and the filter screen of the present utility model;

fig. 4 is a schematic structural view of the support ring and turbine blade of the present utility model.

Legend description:

1. a pump body; 2. a working shell; 3. a support case; 4. a filter screen; 5. a water outlet pipe; 6. a control box; 7. a connecting pipe; 8. a sealing plate; 9. a support tube; 10. a mounting plate; 11. a transfer pump; 12. a return pipe; 13. a delivery tube; 14. a control valve; 15. a support ring; 16. an annular groove; 17. turbine blades; 18. a U-shaped tube; 19. a water outlet hole; 20. a seal ring; 21. and (5) connecting the flanges.

Detailed Description

Fig. 1 to 4 show, relate to a backflow-preventing submersible pump, including pump body 1, the bottom fixedly connected with working shell 2 of pump body 1, the bottom fixedly connected with supporting shell 3 of working shell 2, the bottom fixedly connected with filter screen 4 of supporting shell 3, surface one side fixedly connected with outlet pipe 5 of working shell 2, the one end fixedly connected with control box 6 of outlet pipe 5, fixedly connected with connecting pipe 7 is run through on the top of control box 6, the internally mounted of control box 6 has automatic closing mechanism, the surface one side of control box 6 runs through fixedly connected with backflow mechanism, the internally mounted of supporting shell 3 has the clearance mechanism with filter screen 4 matched with, and clearance mechanism cooperatees with backflow mechanism.

The inside of the pump body 1 is fixedly provided with a controller and a driving motor in sequence, the inside of the working shell 2 is rotationally connected with an impeller, the impeller is fixedly connected with an output shaft of the driving motor, and the driving motor rotates to drive the impeller to rotate, so that the pumping function of the submersible pump is realized conveniently.

The automatic closing mechanism comprises two sealing plates 8, the two sealing plates 8 are respectively connected with two sides of the inner wall of the control box 6 in a rotating way, a supporting pipe 9 communicated with the water outlet pipe 5 is fixedly connected to the inner bottom of the control box 6, a sealing pad contacted with the sealing plate 8 is fixedly connected to the top end of the supporting pipe 9, torsion springs are fixedly connected to the two ends of the sealing plate 8 and the inner wall of the control box 6, when the submersible pump stops working, liquid in the pipeline flows back, at the moment, the two sealing plates 8 are enabled to rotate under the impact of the torsion springs and the liquid, the water outlet pipe 5 is blocked by the cooperation of the supporting pipe 9, backflow of the submersible pump is avoided, and the effect of preventing the internal backflow of the submersible pump is achieved.

The backflow mechanism comprises a mounting plate 10 fixedly connected with the outer surface of the water outlet pipe 5, a conveying pump 11 is fixedly arranged on one side of the mounting plate 10, a backflow pipe 12 is fixedly connected between the input end of the conveying pump 11 and the control box 6, a conveying pipe 13 is fixedly connected between the output end of the conveying pump 11 and the support shell 3, one end of the conveying pipe 13 is obliquely arranged, a control valve 14 is fixedly arranged on the outer surface of the backflow pipe 12, the control valve 14 is opened, the conveying pump 11 is started at the moment, and the conveying pump 11 can convey liquid flowing back in a pipeline to the inside of the support shell 3 sequentially through the backflow pipe 12 and the conveying pipe 13.

The cleaning mechanism comprises a supporting ring 15 rotationally connected with the inner wall of the supporting shell 3, an annular groove 16 communicated with the conveying pipe 13 is formed in the outer surface of the supporting ring 15, turbine blades 17 are fixedly connected to the inner wall of the annular groove 16, a U-shaped pipe 18 is fixedly connected to the lower surface of the supporting ring 15, a plurality of water outlet holes 19 are formed in the outer surface of the U-shaped pipe 18 in sequence, reflux liquid enters the annular groove 16 and impacts the turbine blades 17, at the moment, the turbine blades 17 and the supporting ring 15 are driven to rotate, the U-shaped pipe 18 at the bottom is driven to rotate, and liquid entering the annular groove 16 is sprayed out through the water outlet holes 19 in the U-shaped pipe 18, so that the filter screen 4 is impacted and cleaned, and the blocking condition of the filter screen 4 is reduced.

The upper surface and the lower surface of the support ring 15 are both in sealing sliding connection with the sealing ring 20, and the outer surface of the sealing ring 20 is fixedly connected with the inner wall of the support shell 3, so that the tightness of the support ring 15 can be improved, and liquid leakage is avoided.

One end of the connecting pipe 7 is fixedly connected with a connecting flange 21, and a plurality of connecting holes are formed in the outer surface of the connecting flange 21 so as to be convenient to connect with an external pipeline.

When the anti-backflow submersible pump is used, when the submersible pump stops working, liquid in an external pipeline flows back at the moment, two sealing plates 8 rotate under the impact of torsion springs and liquid, thereby the water outlet pipe 5 is blocked by the cooperation supporting pipe 9, the situation of backflow of the submersible pump is avoided, the effect of preventing the backflow of the inside of the submersible pump is achieved, then the control valve 14 and the conveying pump 11 are started, the conveying pump 11 can convey the liquid flowing back in the pipeline to the inner part of the annular groove 16 on the supporting ring 15 sequentially through the backflow pipe 12 and the conveying pipe 13, the backflow liquid enters the annular groove 16 and impacts the turbine blade 17, at the moment, the turbine blade 17 and the supporting ring 15 are driven to rotate, the U-shaped pipe 18 at the bottom is driven to rotate, and the liquid entering the annular groove 16 is sprayed out through the water outlet hole 19 on the U-shaped pipe 18, so that the filter screen 4 is impacted and washed, and the blocking situation of the filter screen 4 is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides an anti-reflux immersible pump, includes the pump body (1), its characterized in that: the utility model discloses a pump body, including pump body (1), work shell (2), the bottom fixedly connected with of work shell (2) supports shell (3), the bottom fixedly connected with filter screen (4) of support shell (3), surface one side fixedly connected with outlet pipe (5) of work shell (2), the one end fixedly connected with control box (6) of outlet pipe (5), the top through fixedly connected with connecting pipe (7) of control box (6), the internally mounted of control box (6) has automatic closing mechanism, the surface one side through fixedly connected with return mechanism of control box (6), the internally mounted of support shell (3) has the clearance mechanism with filter screen (4) matched with, just clearance mechanism cooperatees with return mechanism.

2. A backflow prevention submersible pump according to claim 1, wherein: the inside of the pump body (1) is fixedly provided with a controller and a driving motor in sequence, the inside of the working shell (2) is rotationally connected with an impeller, and the impeller is fixedly connected with an output shaft of the driving motor.

3. A backflow prevention submersible pump according to claim 1, wherein: the automatic closing mechanism comprises two sealing plates (8), the two sealing plates (8) are respectively connected with two sides of the inner wall of the control box (6) in a rotating mode, a supporting pipe (9) communicated with the water outlet pipe (5) is fixedly connected to the inner bottom of the control box (6), a sealing gasket contacted with the sealing plates (8) is fixedly connected to the top end of the supporting pipe (9), and torsion springs are fixedly connected between the two ends of the sealing plates (8) and the inner wall of the control box (6).

4. A backflow prevention submersible pump according to claim 3, wherein: the backflow mechanism comprises a mounting plate (10) fixedly connected with the outer surface of the water outlet pipe (5), a conveying pump (11) is fixedly arranged on one side of the mounting plate (10), a backflow pipe (12) is fixedly connected between the input end of the conveying pump (11) and the control box (6), a conveying pipe (13) is fixedly connected between the output end of the conveying pump (11) and the supporting shell (3), one end of the conveying pipe (13) is obliquely arranged, and a control valve (14) is fixedly arranged on the outer surface of the backflow pipe (12).

5. The backflow prevention submersible pump of claim 4 wherein: the cleaning mechanism comprises a supporting ring (15) rotationally connected with the inner wall of a supporting shell (3), an annular groove (16) communicated with a conveying pipe (13) is formed in the outer surface of the supporting ring (15), a turbine blade (17) is fixedly connected with the inner wall of the annular groove (16), a U-shaped pipe (18) is fixedly connected with the lower surface of the supporting ring (15), and a plurality of water outlet holes (19) are sequentially formed in the outer surface of the U-shaped pipe (18).

6. The anti-reflux submersible pump of claim 5, wherein: the upper surface and the lower surface of the support ring (15) are respectively connected with a sealing ring (20) in a sealing sliding manner, and the outer surface of the sealing ring (20) is fixedly connected with the inner wall of the support shell (3).

7. A backflow prevention submersible pump according to claim 1, wherein: one end of the connecting pipe (7) is fixedly connected with a connecting flange (21), and a plurality of connecting holes are formed in the outer surface of the connecting flange (21).