Sand prevention submersible electric pump

Abstract

The utility model relates to the technical field of fluid electromechanical equipment, in particular to a sand prevention submersible electric pump. Comprising an electric pump body and a supporting mechanism, the supporting mechanism comprises a base, a filtering cover, an inclined cylinder, a supporting rod, a stainless steel pull rod and a protection device, and during use, the bottom of the electric pump body can be supported through the inclined cylinder, the supporting rod and the stainless steel pull rod, so that a water inlet of the electric pump body can be located below the water surface; furthermore, a filter cover is mounted below the water inlet in the bottom of the electric pump body, so that the sand prevention capability of the electric pump body is enhanced, mud and sand in water can be prevented from entering the electric pump body, and the water inlet of the electric pump body can be far away from the silt at the bottom of the water source; finally, the amount of silt entering the electric pump body along with water flow can be reduced, abrasion of parts in the electric pump body is reduced, and the service life of the electric pump body is prolonged.

Description

A sand-proof submersible pump Technical Field

[0001] This utility model relates to the field of fluid electromechanical equipment technology, specifically to a sand-proof submersible electric pump. Background Technology

[0002] A submersible pump is a type of water pump where both the pump body, impeller, and the motor driving the impeller are submerged in water. There are two types: those for deep wells and those for working surfaces. Deep well submersible pumps supply power to the motor via a cable extending into the well, eliminating the need for a long drive shaft. This results in a compact structure, light weight, and convenient installation, use, and relocation. Traditional submersible pumps use a single-piece cast metal base, with bolts connecting the upper and lower parts via two flanges. This design results in a higher manufacturing cost for the intermediate base.

[0003] A search revealed that prior art CN219345001 U discloses a submersible pump, belonging to the field of submersible pump technology. It solves the problem of high production costs associated with existing pump bases made of integral metal casting. This submersible pump includes a top base, a base, and a bottom base. The base includes a base end cover and an inner body. The base end cover is located inside the upper part of the inner body. A first flange and a second flange are formed on the outer walls of the upper and lower ends of the inner body, respectively. The corresponding screw holes on the first and second flanges are connected by connecting ribs. The first flange, the second flange, and the connecting ribs are integrally injection molded and formed with the inner body. This utility model has the advantages of reducing material costs and improving processing efficiency.

[0004] However, the above-mentioned submersible pumps have the following problems when in use: During use, the submersible pump will sink into the water and come into contact with the bottom of the water source. However, there is often a lot of silt at the bottom of the water source. During the operation of the submersible pump, there is no filter mechanism at its inlet, which is easily submerged by silt. A large amount of silt can easily enter the submersible pump with the water flow, which will cause friction with the internal parts of the submersible pump, thereby accelerating the wear of the submersible pump, making the submersible pump easy to damage, and ultimately reducing the service life of the submersible pump. Summary of the Invention

[0005] The purpose of this utility model is to provide a sand-proof submersible electric pump that can make the water inlet of the electric pump body far away from the mud and sand at the bottom of the water source, thereby reducing the amount of mud and sand entering the electric pump body with the water flow, reducing the wear of the internal parts of the electric pump body, and improving the service life of the electric pump body.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a sand-proof submersible electric pump, including an electric pump body and a support mechanism;

[0007] The support mechanism includes a base, a filter cover, tilting cylinders, a support rod, a stainless steel tie rod, and a protective device. The base is detachably connected to the electric pump body and is located at the bottom of the electric pump body. An installation part is provided on the bottom water passage side of the base. The filter cover is installed below the installation part. The water inlet of the electric pump body is located above the installation part. Multiple tilting cylinders are welded to the base. The support rod is fixed to the tilting cylinders by the stainless steel tie rod. The protective device is located on the upper side of the base and on the outside of the electric pump body.

[0008] The outer surface of the filter cover is coated with a KNM22 metal anti-corrosion and wear-resistant coating, and multiple water passage holes are provided. The diameter of the water passage holes is smaller than the diameter of the water inlet hole on the bottom water inlet of the electric pump body.

[0009] The electric pump body has a water outlet pipe on its side and a connection part on its top.

[0010] The protective device includes a top plate and a support frame. The top plate is located on the top of the electric pump body and has a clearance cavity. The top of the support frame is welded and fixed to the top plate, and the bottom is detachably connected to the base and is arranged in a ring at uniform intervals.

[0011] The end surface of the support frame away from the electric pump body has an arc-shaped structure.

[0012] The sand-proof submersible pump also includes an isolation mechanism, which includes a plastic sleeve and a locking ring. The plastic sleeve is detachably connected to the top plate and is located inside the water pipe through hole of the top plate. The locking ring is threadedly connected to the plastic sleeve and abuts against the top plane of the top plate.

[0013] This utility model discloses a sand-proof submersible electric pump. During use, the bottom of the pump body is supported by an inclined cylinder, support rod, and stainless steel tie rod structure. This ensures that the pump inlet is both below the water surface and a certain distance from the sediment at the bottom of the water source. Furthermore, by installing a filter cover below the inlet at the bottom of the pump body, the sand-proof capability of the pump body is enhanced, thereby reducing the amount of sediment entering the pump body. This further ensures that the inlet of the pump body is far from the sediment at the bottom of the water source, ultimately reducing the amount of sediment entering the pump body with the water flow, reducing wear on internal parts, and extending the service life of the pump body. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0015] Figure 1 is a schematic diagram of the overall structure of the sand-proof submersible electric pump according to the first embodiment of this utility model.

[0016] Figure 2 is a schematic diagram of the installation position of the filter cover according to the first embodiment of this utility model.

[0017] Figure 3 is a cross-sectional view of the filter cover of the first embodiment of this utility model.

[0018] Figure 4 is a schematic diagram of the overall structure of the sand-proof submersible electric pump according to the second embodiment of this utility model.

[0019] In the diagram: 101-Pump body, 102-Base, 103-Mounting part, 104-Filter cover, 105-Inclined cylinder, 106-Support rod, 107-Stainless steel tie rod, 108-Outlet pipe, 109-Connecting part, 110-Top plate, 111-Support frame, 201-Plastic sleeve, 202-Locking ring. Detailed Implementation

[0020] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1:

[0022] As shown in Figures 1 to 3, where Figure 1 is a schematic diagram of the overall structure of the sand-proof submersible pump, Figure 2 is a schematic diagram of the installation position of the filter cover 104, and Figure 3 is a cross-sectional view of the filter cover 104, this utility model provides a sand-proof submersible pump: including a pump body 101 and a support mechanism. The support mechanism includes a base 102, a filter cover 104, an inclined cylinder 105, a support rod 106, a stainless steel tie rod 107, and a protective device. The protective device includes a top plate 110 and a support frame 111. Through the aforementioned solution, the inlet of the pump body 101 can be positioned further away from the sediment at the bottom of the water source, ultimately reducing the amount of sediment entering the pump body 101 with the water flow, reducing wear on the internal parts of the pump body 101, and extending the service life of the pump body 101. It can be understood that the aforementioned solution can improve the service life of the pump body 101.

[0023] In this embodiment, a water inlet is provided at the bottom of the electric pump body 101.

[0024] The base 102 is detachably connected to the electric pump body 101 and is located at the bottom of the electric pump body 101. A mounting part 103 is provided on the bottom water passage side of the base 102. The filter cover 104 is installed below the mounting part 103. The water inlet of the electric pump body 101 is located above the mounting part 103. Multiple inclined cylinders 105 are welded to the base 102. The support rod 106 is fixed to the inclined cylinder 105 by the stainless steel tie rod 107. The protective device is located on the upper side of the base 102 and on the outside of the electric pump body 101. The base 102 is connected to the electric pump body 101 by T-shaped stainless steel screws and nuts. The bottom of the electric pump body 101 is connected to the end. Four water channels are provided on the side of the base 102, and the mounting part 103 is located on one side of the internal water channel. Multiple inclined cylinders 105 are welded to the base 102, each with a non-penetrating mounting cavity. Rectangular grooves are symmetrically arranged on the lower side of the mounting cavity, and these grooves slide against rectangular protrusions on the support rod 106. The support rod 106 is fixed by a stainless steel pull rod 107. The stainless steel pull rod 107 passes through the top through-hole of the inclined cylinder 105, and its external threaded end connects with the top threaded hole of the support rod 106. The protective device is used to protect the electric pump body 101 when it is placed inside the circular cavity. The filter cover 104 has a double-layer filter structure with reinforcing rods between the filter screens to improve stability. The double-layer filter structure improves stability, meaning that even if the bottom filter screen is damaged, the upper filter screen can continue filtering, and the filter holes between the filter screens are of the same size.

[0025] The outer surface of the filter cover 104 is coated with a KNM22 metallic anti-corrosion and wear-resistant coating, and multiple water passage holes are provided. The diameter of the water passage holes is smaller than the diameter of the water inlet hole on the bottom water inlet of the electric pump body 101. KNM22 metallic anti-corrosion and wear-resistant coating is a high-performance coating widely used in metal pipelines and underwater machinery. The coating application method includes pretreatment of the substrate; for example, carbon steel substrates require degreasing, pickling, and phosphating, followed by sandblasting and cleaning; stainless steel substrates require sandblasting and cleaning. Coating methods include flame spraying, high-voltage electrostatic spraying, and fluidized bed coating. The coating has excellent adhesion, outstanding elasticity and flexibility, and excellent properties such as water resistance, impact resistance, low coefficient of friction, and wear resistance, which can improve the service life and operational stability of machinery. Compared with existing powder coatings, KNM22 metallic anti-corrosion and wear-resistant coating overcomes the shortcomings of sensitivity to high humidity environments and high price. For post-processing, after high-pressure electrostatic spraying or fluidized bed coating, the parts are placed in an oven and kept at 210-250℃ for 0.2-1.0 hours to obtain a uniform coating. The outer surface of the filter cover 104 is coated with a KNM22 metal anti-corrosion and wear-resistant coating to improve its service life. The surfaces of the support rod 106, the base 102, and the stainless steel pull rod 107 can also be coated with a KNM22 metal anti-corrosion and wear-resistant coating.

[0026] Secondly, the electric pump body 101 has a water outlet pipe 108 on its side and a connecting part 109 on its top. The water outlet pipe 108 can be connected to an external soft water pipe, and the connecting part 109 is used to cooperate with a suspension rope.

[0027] Then, the top plate 110 is disposed on top of the electric pump body 101 and has a clearance cavity; the top of the support frame 111 is welded and fixed to the top plate 110, and the bottom is detachably connected to the base 102, and they are arranged in a ring at even intervals. The top plate 110 is welded to the top of the support frame 111, and the bottom is connected and fixed to the base 102 by stainless steel bolts. The clearance cavity is used for the passage of the hoisting rope and the working cable of the electric pump body 101. When the electric pump body 101 is placed into the circular water well, during the lowering process, the electric pump body 101 can reduce the friction between the pump body surface and the well wall by setting the top plate 110 and the support frame 111, which can improve safety.

[0028] Finally, the end surface of the support frame 111 away from the electric pump body 101 has an arc-shaped structure. This structure facilitates the sliding contact between the support frame 111 and the well wall.

[0029] When using this utility model to improve the service life of the electric pump body 101, during use, the bottom of the electric pump body 101 is supported by the inclined cylinder 105, the support rod 106, and the stainless steel tie rod 107. This allows the water inlet of the electric pump body 101 to be both below the water surface and at a certain distance from the sediment at the bottom of the water source. Furthermore, by installing the filter cover 104 below the water inlet at the bottom of the electric pump body 101, the sand-proof capability of the electric pump body 101 is enhanced, thereby reducing the amount of sediment entering the electric pump body 101. This further ensures that the water inlet of the electric pump body 101 is far from the sediment at the bottom of the water source, ultimately reducing the amount of sediment entering the electric pump body 101 with the water flow, reducing the wear of the internal parts of the electric pump body 101, and improving the service life of the electric pump body 101.

[0030] Example 2:

[0031] As shown in Figure 4, which is a schematic diagram of the overall structure of the sand-proof submersible pump, this utility model provides a sand-proof submersible pump based on the first embodiment. The sand-proof submersible pump also includes an isolation mechanism, which includes a plastic sleeve 201 and a locking ring 202.

[0032] The plastic sleeve 201 is detachably connected to the top plate 110 and is located inside the water pipe through hole of the top plate 110; the locking ring 202 is threadedly connected to the plastic sleeve 201 and abuts against the top plane of the top plate 110. The plastic sleeve 201 has a T-shaped structure, passes through the mounting hole on the top plate 110, and is fixed by the locking ring 202.

[0033] In this embodiment, by providing the plastic sleeve 201 and the locking ring 202, the water pipe passing through the top plate 110 can be protected from external damage to the surface of the water pipe by the edge of the water passage hole on the top plate 110.

[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sand-proof submersible electric pump, comprising a pump body, characterized in that: It also includes a support mechanism; the support mechanism includes a base, a filter cover, tilting cylinders, support rods, stainless steel tie rods, and a protective device. The base is detachably connected to the electric pump body and is located at the bottom of the electric pump body. An installation part is provided on one side of the bottom water passage of the base. The filter cover is installed below the installation part. The water inlet of the electric pump body is located above the installation part. Multiple tilting cylinders are welded to the base. The support rod is fixed to the tilting cylinders by the stainless steel tie rods. The protective device is located on the upper side of the base and on the outside of the electric pump body. The outer surface of the filter cover is provided with a KNM22 metal anti-corrosion and wear-resistant coating and is provided with multiple water passage holes. The diameter of the water passage holes is smaller than the diameter of the water inlet holes on the bottom water inlet of the electric pump body.

2. The sand-proof submersible electric pump as described in claim 1, characterized in that: The electric pump body has a water outlet pipe on its side and a connection part on its top.

3. The sand-proof submersible electric pump as described in claim 1, characterized in that: The protective device includes a top plate and a support frame. The top plate is located on the top of the electric pump body and has a clearance cavity. The top of the support frame is welded and fixed to the top plate, and the bottom is detachably connected to the base and is arranged in a ring at uniform intervals.

4. The sand-proof submersible electric pump as described in claim 3, characterized in that: The end surface of the support frame away from the electric pump body has an arc-shaped structure.

5. The sand-proof submersible electric pump as described in claim 3, characterized in that: The sand-proof submersible pump also includes an isolation mechanism, which includes a plastic sleeve and a locking ring. The plastic sleeve is detachably connected to the top plate and is located inside the water pipe through hole of the top plate. The locking ring is threadedly connected to the plastic sleeve and abuts against the top plane of the top plate.

Images