CN216554478U

CN216554478U - Sand-proof check valve for deep well submersible pump

Info

Publication number: CN216554478U
Application number: CN202123378290.8U
Authority: CN
Inventors: 赵贵忠; 张婷婷; 李开铭; 韩文玺
Original assignee: Shenyang Zhongchuang Gaoke Energy Saving Motor Technology Co ltd
Current assignee: Shenyang Zhongchuang Gaoke Energy Saving Motor Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-17
Anticipated expiration: 2031-12-30

Abstract

A sand prevention check valve for a deep well submersible pump belongs to the technical field of deep well submersible pumps. The sand removing device comprises a shell and is characterized in that the shell is of a cylindrical structure, the upper end and the lower end of the shell are both flange structures, a water inlet pipe is arranged at the lower end of the shell, a sand discharge hole is formed in the middle lower portion of the shell, a support is mounted on the middle upper portion in the shell, a hole is formed in the middle of the support, a piston is arranged in the shell, a handle is arranged at the upper end of the piston and correspondingly penetrates through the hole, the piston can move up and down along the hole, a sand removing frame is further arranged in the shell and is of a cylindrical structure and can be wrapped outside the water inlet pipe, and the sand removing frame is connected with the piston and can move simultaneously. The utility model can effectively protect the deep well submersible pump from being blocked by mud and sand impurities in the return water, and prolong the service life of the water pump.

Description

Sand-proof check valve for deep well submersible pump

Technical Field

The utility model belongs to the technical field of deep well submersible pumps, and particularly relates to a sand-proof check valve of a deep well submersible pump.

Background

The deep well submersible pump is installed in a deep well of a water source and is used for taking water from the deep well underground. The deep well submersible pump is of a vertical structure, the bottom of the pump is a water inlet, the top of the pump is a water outlet, the water outlet is connected with a water raising pipe, and well water extracted by the pump is transmitted to a ground pool or a water using terminal through the water raising pipe. When the deep well submersible pump is stopped, water in the pumping pipe, which is higher than the water well level, flows back to the water well, the backflow water flows through the deep well submersible pump, and impurities such as mud and sand in the backflow water may be embedded into a gap between a pump shaft and a bearing of the deep well submersible pump, so that the water pump is difficult to start, and the service life of the water pump is shortened.

Disclosure of Invention

Aiming at the problems, the utility model makes up the defects of the prior art and provides a sand-proof check valve for a deep well submersible pump; the utility model can effectively protect the deep well submersible pump from being blocked by mud and sand impurities in the return water, and prolong the service life of the water pump.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a sand-proof check valve for a deep well submersible pump, which comprises a shell and is characterized in that the shell is of a cylindrical structure, the upper end and the lower end of the shell are both of flange structures, a water inlet pipe is arranged at the lower end of the shell, a sand discharge hole is formed in the middle lower part of the shell, a support is installed at the middle upper part in the shell, a hole is formed in the middle of the support, a piston is arranged in the shell, a handle is arranged at the upper end of the piston and correspondingly penetrates through the hole, so that the piston can move up and down along the hole, a sand removing frame is further arranged in the shell and is of a cylindrical structure, the sand removing frame can be wrapped outside the water inlet pipe, and the sand removing frame is connected with the piston and can move simultaneously.

Furthermore, the circumference of the upper end of the sand removing frame is provided with a plurality of inner claws, the piston is provided with a plurality of grooves, and the inner claws are correspondingly clamped in the grooves to connect the sand removing frame with the piston.

Furthermore, the upper surface and the lower surface of the piston are both of an outer arc structure.

The utility model has the beneficial effects.

According to the utility model, through the piston and the desanding frame, the backflow water in the pumping pipe is discharged through the sand discharge hole, so that the deep well submersible pump is effectively protected from being blocked by mud and sand impurities in the backflow water, and the service life of the water pump is prolonged.

Drawings

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Fig. 1 is a perspective cross-sectional view of the present invention.

Fig. 2 is a side sectional view of the present invention.

The labels in the figure are: 1 is a shell, 2 is a water inlet pipe, 3 is a sand discharge hole, 4 is a bracket, 5 is a hole, 6 is a piston, 7 is a handle, 8 is a sand removing frame, 9 is an inner claw and 10 is a groove.

Detailed Description

Combine the figure shown, this embodiment provides a deep well immersible pump sand control check valve, including shell 1, shell 1 is cylindric structure, and the upper and lower both ends of shell 1 are flange structure, and the lower extreme of shell 1 is provided with

inlet tube

2, and 1 lower extreme of shell passes through the flange to be connected with the deep well immersible pump, and 1 upper ends of shell pass through the flange to be connected with the lifting pipe.

The middle lower part of the shell 1 is provided with a sand discharge hole 3 for discharging impurities such as mud and sand.

Support 4 is installed on well upper portion in the shell 1, the middle part of support 4 is provided with hole 5, be provided with piston 6 in the shell 1, the upper end of piston 6 is provided with handle 7, handle 7 corresponds and passes hole 5, make piston 6 can be along the up-and-down motion of hole 5, the upper and lower two sides of piston 6 are outer circular arc structure, can reduce the resistance to water, and be convenient for let silt particle impurity flow to the inboard edge of shell 1, flow out from sand discharge hole 3 smoothly.

Still be provided with the desanding frame 8 in the shell 1, the desanding frame 8 is cylindric structure, and desanding frame 8 can wrap in inlet tube 2 outsidely, and the upper end circumference of desanding frame 8 is provided with a plurality of interior claws 9, is provided with a plurality of recesses 10 on the piston 6, and interior claw 9 corresponds the card and is connected desanding frame 8 and piston 6 in recess 10, makes desanding frame 8 and piston 6 can remove simultaneously.

The principle of use is as follows.

In the operation process of the deep well submersible pump, well water enters the water inlet pipe 2 at the lower end of the sand prevention check valve through the water pump, the piston 6 moves upwards under the pressure action of the well water, so that the sand removing frame 8 is driven to move upwards, the cylindrical lower part of the sand removing frame 8 covers the sand discharge hole 3 in the shell 1, and the well water flows through the piston 6 from the outer side to the upper end of the shell 1, flows out from the upper end of the shell 1 and flows into the water raising pipe.

After the deep well submersible pump stops operating, well water in the pumping pipe flows in from the upper end of the shell 1, the piston 6 moves downwards under the pressure action of the well water to cover the upper end of the water inlet pipe 2, the piston 6 drives the sand removing frame 8 to move downwards, the sand discharging hole 3 in the shell 1 is exposed, and the well water and sediment impurities are discharged through the sand discharging hole 3.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.

Claims

1. The deep well submersible pump sand control check valve comprises a shell (1) and is characterized in that the shell (1) is of a cylindrical structure, the upper end and the lower end of the shell (1) are both flange structures, a water inlet pipe (2) is arranged at the lower end of the shell (1), a sand discharge hole (3) is formed in the middle lower portion of the shell (1), a support (4) is installed on the middle upper portion in the shell (1), a hole (5) is formed in the middle of the support (4), a piston (6) is arranged in the shell (1), a handle (7) is arranged at the upper end of the piston (6), the handle (7) correspondingly penetrates through the hole (5), the piston (6) can move up and down along the hole (5), a sand removing frame (8) is further arranged in the shell (1), the sand removing frame (8) is of a cylindrical structure, and the sand removing frame (8) can be wrapped outside the water inlet pipe (2), the sand removing frame (8) is connected with the piston (6) and can move simultaneously.

2. The sand control check valve for the deep well submersible pump according to claim 1, characterized in that a plurality of inner claws (9) are arranged on the circumference of the upper end of the sand removing frame (8), a plurality of grooves (10) are arranged on the piston (6), and the inner claws (9) are correspondingly clamped in the grooves (10) to connect the sand removing frame (8) with the piston (6).

3. The sand control check valve for the deep well submersible pump according to claim 1, wherein the upper surface and the lower surface of the piston (6) are both of an outer arc structure.