Self-control corrosion-resistant deep-well submersible pump

Abstract

The utility model relates to deep well submersible pump technical field discloses an automatic control corrosion -resisting deep well submersible pump, including deep well submersible pump main part, the outer surface screw thread connection of deep well submersible pump main part has upper thread cover, the bottom fixedly connected with swivel ring of upper thread cover, the bottom rotationally connected with upper pressure ring of swivel ring, the outer surface screw thread connection of deep well submersible pump main part is located below the upper thread cover and has lower thread cover. The utility model discloses through upper thread cover, swivel ring and expansion assembly cooperation, when lowering deep well submersible pump main part, rotates swivel ring and extrudes expansion assembly, makes elastic pad and well wall contact to support pump body and keep perpendicular, avoids pump body to incline and to hit well wall, reduces the hidden danger, prevents the abrasion of impeller, pump shell and pump body jam, simultaneously, elastic wear -resistant cover can reduce friction, prolongs the life of expansion assembly, and the epoxy glass flake coating of pump body surface can improve corrosion resistance, guarantees equipment stable operation.

Description

Technical Field

[0001] This utility model relates to the field of deep well submersible pump technology, and more specifically to an automatically controlled corrosion-resistant deep well submersible pump. Background Technology

[0002] The automatic control corrosion-resistant deep well submersible pump is a deep well pumping equipment that integrates automatic control technology and corrosion-resistant material technology. It is mainly used to extract liquids (such as water, corrosive liquids, etc.) from deep wells and is suitable for scenarios that require long-term, stable, and automated operation and where the medium is corrosive.

[0003] A search revealed a utility model patent with publication number CN220134309U, which discloses an automatic control corrosion-resistant deep well submersible pump. The pump body includes a submersible pump body with four positioning blocks symmetrically fixed on the surface of the inlet. Each positioning block has a locking hole on its surface. Two matching semi-circular filter screens are tightly fitted to the surface of the inlet of the pump body. Each of the two semi-circular filter screens has two positioning holes symmetrically opened on its surface, which are adapted to the positioning blocks. The positioning blocks pass through the corresponding positioning holes.

[0004] In the deep well submersible pump lowering operation of this patent and existing technologies, the pump body is generally placed into the well by hand-connecting the pipeline. If the well is deep, the pulling force generated by the drooping pipeline will increase with the depth, making it difficult to maintain the balance of the equipment by hand. This may cause the equipment to tilt and hit the well wall, resulting in safety hazards such as leakage and mechanical failure. In addition, when lowering the pipeline by hand, it is impossible to ensure that the pump body is precisely perpendicular to the center of the well. This can easily cause the pump body to rub against the well wall, accelerate the wear of components such as impeller and pump casing, and even cause the pump body to get stuck in the well. For multi-stage pumps, the vibration caused by the eccentric force on the shaft system can easily lead to bearing damage and shaft breakage during long-term operation. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatically controlled corrosion-resistant deep well submersible pump to solve the problems existing in the background art.

[0006] The utility model provides the following technical solution: an automatic control corrosion-resistant deep well submersible pump, including a deep well submersible pump body, an upper threaded sleeve threadedly connected to the outer surface of the deep well submersible pump body, a rotating ring fixedly connected to the bottom of the upper threaded sleeve, an upper pressure ring rotatably connected to the bottom of the rotating ring, a lower threaded sleeve threadedly connected to the outer surface of the deep well submersible pump body below the upper threaded sleeve, a lower pressure ring fixedly connected to the top of the lower threaded sleeve, and an expansion component installed between the upper pressure ring and the lower pressure ring.

[0007] Furthermore, the expansion assembly includes an arc-shaped airbag fixedly connected to the bottom of the upper pressure ring. A groove is provided at the center of the arc-shaped airbag, and an elastic wear-resistant sleeve is fixedly connected to the inner wall of the groove. An elastic pad is integrally fixedly connected to the center of the outer surface of the arc-shaped airbag.

[0008] Furthermore, the arc-shaped airbag is sleeved onto the outer surface of the deep well submersible pump body through a slot, and the outer surface of the deep well submersible pump body is provided with threads that match the inner walls of the upper and lower threaded sleeves.

[0009] Furthermore, a protrusion is fixedly connected to the top of the rotating ring, and a slot is opened through the surface of the protrusion. The outer surface of the deep well submersible pump body is sprayed with a corrosion-resistant coating, which is an epoxy glass flake coating.

[0010] Furthermore, a connecting ring is fixedly connected to the top of the upper pressure ring, and a limiting ring is fixedly connected to the top of the connecting ring. The limiting ring is rotatably connected inside the rotating ring, and the top of the connecting ring extends into the interior of the rotating ring.

[0011] Furthermore, the outer diameter of the limiting ring is larger than the outer diameter of the connecting ring, and the inner diameters of the limiting ring and the connecting ring are equal.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, through the cooperation of the upper threaded sleeve, swivel ring, upper pressure ring, lower threaded sleeve, lower pressure ring and expansion component, when lowering the main body of the deep well submersible pump, the expansion component can be squeezed by rotating the swivel ring, so that the elastic pad expands to contact the well wall, thereby supporting the pump body and keeping it perpendicular to the center of the well. It can effectively avoid the problem of the pump body tilting and hitting the well wall due to the large well depth and pipeline tension, reduce safety hazards such as leakage and mechanical failure, and at the same time prevent impeller and pump casing wear caused by friction between the pump body and the well wall, and prevent the pump body from getting stuck in the well.

[0014] 2. In this utility model, the elastic wear-resistant sleeve in the expansion assembly can reduce the friction between the arc-shaped airbag and the pump body surface, extending the service life of the expansion assembly. The epoxy glass flake coating sprayed on the outer surface of the deep well submersible pump body can effectively resist the erosion of corrosive liquids and improve the corrosion resistance of the equipment. The rotating connection structure between the rotating ring and the upper pressure ring can flexibly adjust the position during the pump body lowering process, and work with the expansion assembly to keep the pump body in the center, reducing the vibration caused by the eccentric force on the shaft system, reducing the probability of bearing damage, shaft breakage and other problems, and ensuring the long-term stable operation of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a schematic diagram showing the connection between the upper pressure ring, the expansion assembly, and the lower pressure ring in this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the upper pressure ring, the connecting ring, and the limiting ring in this utility model;

[0018] Figure 4 This is a cross-sectional view of the expansion component in this utility model.

[0019] The attached diagram is labeled as follows: 1. Deep well submersible pump body; 2. Upper threaded sleeve; 3. Rotary ring; 31. Protrusion; 32. Slot; 4. Upper pressure ring; 41. Connecting ring; 42. Limiting ring; 5. Expansion assembly; 51. Arc-shaped airbag; 52. Through groove; 53. Elastic pad; 54. Elastic wear-resistant sleeve; 6. Lower pressure ring; 7. Lower threaded sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0022] An automatic control corrosion-resistant deep well submersible pump includes a deep well submersible pump body 1. An upper threaded sleeve 2 is threadedly connected to the outer surface of the deep well submersible pump body 1. A rotating ring 3 is fixedly connected to the bottom of the upper threaded sleeve 2. An upper pressure ring 4 is rotatably connected to the bottom of the rotating ring 3. A lower threaded sleeve 7 is threadedly connected to the outer surface of the deep well submersible pump body 1 below the upper threaded sleeve 2. A lower pressure ring 6 is fixedly connected to the top of the lower threaded sleeve 7. An expansion assembly 5 is installed between the upper pressure ring 4 and the lower pressure ring 6.

[0023] In this embodiment, the upper threaded sleeve 2, the swivel ring 3 and the expansion component 5 cooperate. When the deep well submersible pump body 1 is lowered, rotating the swivel ring 3 can squeeze the expansion component 5, so that the elastic pad 53 contacts the well wall, thereby supporting the pump body and keeping it vertical, avoiding the pump body tilting and hitting the well wall, reducing safety hazards, and preventing impeller and pump casing wear and pump body jamming.

[0024] Specifically, the expansion assembly 5 includes an arc-shaped airbag 51 fixedly connected to the bottom of the upper pressure ring 4. A through groove 52 is provided at the center of the arc-shaped airbag 51. An elastic wear-resistant sleeve 54 is fixedly connected to the inner wall of the through groove 52. The elastic wear-resistant sleeve 54 is made of polytetrafluoroethylene. An elastic pad 53 is integrally fixedly connected to the center of the outer surface of the arc-shaped airbag 51.

[0025] In this embodiment, the elastic pad 53 can make close contact with the well wall after expansion, playing a supporting and buffering role. The elastic wear-resistant sleeve 54 is made of polyurethane. The elastic wear-resistant sleeve 54 can reduce the friction between the arc-shaped airbag 51 and the pump body surface, and extend the service life of the expansion component 5.

[0026] Specifically, the arc-shaped airbag 51 is sleeved on the outer surface of the deep well submersible pump body 1 through the through groove 52, and the outer surface of the deep well submersible pump body 1 is provided with threads that match the inner walls of the upper threaded sleeve 2 and the lower threaded sleeve 7.

[0027] In this embodiment, the arc-shaped airbag 51 is sleeved on the pump body through the slot 52, which can ensure a stable connection between the expansion component 5 and the pump body; the threads on the surface of the pump body match the inner walls of the upper threaded sleeve 2 and the lower threaded sleeve 7, which makes it easy to squeeze the expansion component 5 by rotating the threaded sleeve to achieve the expansion function.

[0028] Specifically, a protrusion 31 is fixedly connected to the top of the rotating ring 3, and a slot 32 is opened through the surface of the protrusion 31. The outer surface of the deep well submersible pump body 1 is sprayed with a corrosion-resistant coating, which is an epoxy glass flake coating.

[0029] In this embodiment, the protrusion 31 and the slot 32 facilitate the insertion of the tool to rotate the rotating ring 3, making the operation more convenient; the epoxy glass flake coating can effectively resist the erosion of corrosive liquids and improve the corrosion resistance of the equipment.

[0030] Specifically, a connecting ring 41 is fixedly connected to the top of the upper pressure ring 4, and a limiting ring 42 is fixedly connected to the top of the connecting ring 41. The limiting ring 42 is rotatably connected inside the rotating ring 3, and the top of the connecting ring 41 extends into the interior of the rotating ring 3.

[0031] In this embodiment, the connecting ring 41 and the limiting ring 42 form a rotating connection structure between the upper pressure ring 4 and the rotating ring 3. During the lowering of the pump body, the upper pressure ring 4 can rotate flexibly relative to the rotating ring 3, and together with the expansion component 5, the pump body is kept in the center, reducing the vibration caused by the eccentric force on the shaft system.

[0032] Specifically, the outer diameter of the limiting ring 42 is larger than the outer diameter of the connecting ring 41, and the inner diameters of the limiting ring 42 and the connecting ring 41 are equal.

[0033] In this embodiment, the outer diameter of the limiting ring 42 is larger than the outer diameter of the connecting ring 41, which can prevent the connecting ring 41 from falling out of the rotating ring 3 and ensure the stability of the connection between the upper pressure ring 4 and the rotating ring 3. The inner diameters of the two are equal, which does not affect the installation and use of the pump body.

[0034] The working principle and usage process of this utility model are as follows: During use, after connecting the pipeline to the output end of the deep well submersible pump body 1, before placing the deep well submersible pump body 1 into the well, insert the metal rod into the slot 32. The protrusion 31 drives the rotating ring 3 to rotate, which in turn drives the upper threaded sleeve 2 to rotate and causes the upper pressure ring 4 to slide downwards. The upper pressure ring 4 and lower pressure ring 6 compress the arc-shaped airbag 51, causing it to deform. Since the elastic pad 53 is more flexible than the arc-shaped airbag 51, the elastic pad 53 expands, increasing the overall diameter of the expansion component 5. When the diameter is slightly smaller than the wellhead, stop rotating the rotating ring 3, and then place the deep well submersible pump body 1 into the well. The connection between the elastic pad 53 and the well wall prevents collisions between the deep well submersible pump body 1 and the well wall. Simultaneously, after the deep well submersible pump body 1 is placed in the appropriate position, it will also be located at the center of the well.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An automatically controlled corrosion-resistant deep well submersible pump, comprising a deep well submersible pump body (1), characterized in that: The outer surface of the deep well submersible pump body (1) is threaded with an upper threaded sleeve (2), the bottom of the upper threaded sleeve (2) is fixedly connected with a swivel ring (3), the bottom of the swivel ring (3) is rotatably connected with an upper pressure ring (4), the outer surface of the deep well submersible pump body (1) is threaded with a lower threaded sleeve (7) below the upper threaded sleeve (2), the top of the lower threaded sleeve (7) is fixedly connected with a lower pressure ring (6), and an expansion assembly (5) is installed between the upper pressure ring (4) and the lower pressure ring (6).

2. The automatically controlled corrosion-resistant deep well submersible pump according to claim 1, characterized in that: The expansion assembly (5) includes an arc-shaped airbag (51) fixedly connected to the bottom of the upper pressure ring (4). A through groove (52) is provided at the center of the arc-shaped airbag (51). An elastic wear-resistant sleeve (54) is fixedly connected to the inner wall of the through groove (52). An elastic pad (53) is integrally fixedly connected to the center of the outer surface of the arc-shaped airbag (51).

3. The automatically controlled corrosion-resistant deep well submersible pump according to claim 2, characterized in that: The arc-shaped airbag (51) is sleeved on the outer surface of the deep well submersible pump body (1) through a groove (52). The outer surface of the deep well submersible pump body (1) is provided with threads that match the inner walls of the upper threaded sleeve (2) and the lower threaded sleeve (7).

4. The automatically controlled corrosion-resistant deep well submersible pump according to claim 1, characterized in that: The top of the rotating ring (3) is fixedly connected to a protrusion (31), and a slot (32) is opened through the surface of the protrusion (31). The outer surface of the deep well submersible pump body (1) is sprayed with a corrosion-resistant coating, which is an epoxy glass flake coating.

5. The automatically controlled corrosion-resistant deep well submersible pump according to claim 1, characterized in that: The top of the upper pressure ring (4) is fixedly connected to a connecting ring (41), and the top of the connecting ring (41) is fixedly connected to a limiting ring (42). The limiting ring (42) is rotatably connected inside the rotating ring (3), and the top of the connecting ring (41) extends into the interior of the rotating ring (3).

6. The automatically controlled corrosion-resistant deep well submersible pump according to claim 5, characterized in that: The outer diameter of the limiting ring (42) is greater than the outer diameter of the connecting ring (41), and the inner diameters of the limiting ring (42) and the connecting ring (41) are equal.

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