WO2022116019A1

WO2022116019A1 - Low-vibration-type submersible pump for deep well

Info

Publication number: WO2022116019A1
Application number: PCT/CN2020/133200
Authority: WO
Inventors: 袁丹青; 丛小青
Original assignee: 江苏江大流体技术有限公司
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-06-09
Also published as: DE212020000332U1

Abstract

A low-vibration-type submersible pump for a deep well, comprising a machine body (1), a flow guide cover (2) is connected to the lower end of the machine body (1), the machine body (1) is connected to the flow guide cover (2) by means of a lower connecting component (4), and the lower connecting component (4) comprises a clamping block (41) and a buckle (42), the clamping block (41) is connected to the machine body (1), the buckle (42) is connected to the flow guide cover (2), an expansion ring (43) is arranged on an inner wall of the clamping block (41), and the outer surface of the expansion ring (43) abuts against the outer wall of the buckle (42). The submersible pump uses the cooperative manner of the expansion ring (43) and the buckle (42) to replace a traditional bolt connection manner, and after encountering water, the expansion ring (43) expands and squeezes the buckle (42), thereby ensuring that the buckle (42) is always tightly attached to a clamping groove in the clamping block (41), so as to ensure that the flow guide cover (2) and the machine body (1) do not loosen. By means of the foregoing arrangement, shaking generated during subsequent use can be reduced, thereby reducing the noise and vibration of the submersible pump.

Description

A low-vibration submersible pump for deep wells

technical field

The utility model particularly relates to a low-vibration submersible pump for deep wells.

Background technique

Submersible pumps are mainly used in petroleum, chemical, coal mining and other industries. For example, submersible pumps can be used to pump liquids containing flammable gases in the medium, or to pump liquids with flammable gases in the workplace.

After the submersible pump is used for a long time, there will be a gap between the shroud at the lower end and the pump body, and due to the high-speed rotation of the submersible pump, there will be relative movement between the shroud and the pump body, resulting in a larger noise. .

The common connection method between the shroud and the pump body is generally welded or bolted. However, after long-term use, the surface of the bolt is rusted, which causes the shroud to loosen. The loose shroud will cause certain noise pollution, and in severe cases, it will even cause the whole submersible pump to vibrate.

Utility model content

The purpose of the utility model is to provide a low-vibration submersible pump for deep wells in order to solve the deficiencies of the existing problems.

A low-vibration submersible pump for deep wells, comprising a body, the lower end of the body is connected with a shroud, the body and the shroud are connected by a lower connecting part, and the lower connecting part includes a clamping block and a clamping block. The clip is connected to the body, the clip is connected to the shroud, the inner wall of the clip is provided with an expansion ring, and the outer surface of the expansion ring abuts on the outer wall of the clip.

The interior of the clamping block is provided with a clamping slot matched with the clamping buckle, and the clamping buckle is clamped in the clamping slot, thereby completing the connection between the body and the air guide cover. At the same time, an annular groove is arranged on the inner wall of the clamping block, and an expansion ring is arranged in the groove. When the expansion ring is expanded by water, it can ensure that there will be no shaking between the buckle and the clamping block.

Preferably, the expansion ring is a water-expandable rubber strip.

Preferably, a motor is also included, and the motor is connected to the body through the upper connecting part.

Preferably, the shape of the shroud is a trumpet shape.

Preferably, a guide tube is connected to the side wall of the body, and the end of the guide tube is provided with threads.

Preferably, the material of the shroud is hard aluminum alloy.

Beneficial effects:

In this device, the traditional bolt connection method is replaced by the combination of expansion ring and buckle. After encountering water, the expansion ring expands and squeezes the buckle, so as to ensure that the buckle is always tightly attached to the groove inside the card block. to ensure that there is no looseness between the shroud and the body.

Description of drawings

Fig. 1 is the structural representation of a kind of low vibration type submersible pump for deep well;

Fig. 2 is the structural representation of connecting part;

Figure 3 is a partial schematic view of the card slot;

1. Body 2. Air shroud 3. Air guide tube 4. Lower connecting part 5. Upper connecting part 41. Block 42. Buckle 43. Expansion ring.

specific implementation

In order to deepen the understanding of the present utility model, the present utility model will be described in further detail below with reference to the embodiments and the accompanying drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

As shown in Figure 1, a low-vibration submersible pump for deep wells comprises a body 1, the lower end of the body 1 is connected with a shroud 2, and the body 1 and the shroud 2 are connected by a lower connecting member 4.

As shown in FIG. 2-3 , the lower connecting part 4 includes a clamping block 41 and a buckle 42 . The clamping block 41 is connected with the body 1 , and the buckle 42 is connected with the air duct 2 . The inner wall of the clamping block 41 An expansion ring 43 is provided thereon, and the outer surface of the expansion ring 43 abuts on the outer wall of the buckle 42 .

The interior of the clamping block 41 is provided with a clamping slot matching the buckle 42 , and the buckle 42 is clamped in the clamping slot, thereby completing the connection between the body 1 and the air duct 2 . At the same time, an annular groove is provided on the inner wall of the clamping block 41, and an expansion ring 43 is arranged in the groove.

The expansion ring 43 adopts a water-expandable rubber ring.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the within the scope of protection of the present invention.

Claims

A low-vibration submersible pump for deep wells, characterized in that it comprises a body, the lower end of the body is connected with a shroud, the body and the shroud are connected by a lower connecting part, and the lower connecting part comprises A clamping block and a buckle, the clamping block is connected with the body, the buckle is connected with the air guide cover, an expansion ring is arranged on the inner wall of the clamping block, and the outer surface of the expansion ring abuts on the outer wall of the buckle superior.
The low-vibration submersible pump for deep wells according to claim 1, wherein the expansion ring is a water-expandable rubber strip.
A low-vibration submersible pump for deep wells according to claim 1, further comprising a motor, and the motor is connected to the body through an upper connecting part.
A low-vibration submersible pump for deep wells according to claim 1, characterized in that the shape of the diversion cover is a trumpet shape.
A low-vibration submersible pump for deep wells according to claim 1, characterized in that a guide tube is connected to the side wall of the body, and the end of the guide tube is provided with threads.
The low-vibration submersible pump for deep wells according to claim 1, wherein the material of the diversion cover is a hard aluminum alloy.