High-lift immersed pump
By designing a high-lift submersible pump and adopting a multi-stage step-by-step work and self-lubricating structure, the problem of insufficient head in small-diameter submersible pumps is solved, and the effects of high speed and high head are achieved.
Patent Information
- Application Number
- CN202510943369.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-10-14
AI Technical Summary
Existing small-diameter submersible pumps are difficult to meet the use requirements of up to 1000m in terms of lift.
It adopts high-lift submersible pump design, including cylinder, pump shaft, guide piece, partial flow impeller, hard graphite sliding bearing and hard alloy shaft sleeve. It realizes high speed and high lift through multi-stage step-by-step work and self-lubrication function.
It enables a small diameter pump to generate a head of more than one kilometer at high speed, with a compact structure and high reliability.
Smart Images
Figure CN120777201A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of centrifugal pumps, in particular to a high-lift submerged pump. BACKGROUND
[0002] In some special working conditions, the pump is required to be small in diameter and light in weight, and the liquid is required to be boosted to a high pressure. The lift of a conventional small-diameter submerged pump is as high as 1000m, which cannot meet the use requirements in terms of lift.
[0003] Therefore, there is an urgent need for a high-lift submerged pump to solve the above problems. SUMMARY
[0004] The purpose of the present application is to provide a high-lift submerged pump to solve the problems existing in the prior art.
[0005] To achieve the above purpose, the present application provides the following solution: the present application provides a high-lift submerged pump, comprising:
[0006] A cylinder is provided with an inlet section, an adjusting section and an outlet section from one end to the other end, a pump shaft is rotatably connected in the cylinder, and one end of the pump shaft is fixedly connected with the output end of an external motor outside the inlet section;
[0007] A plurality of flow guides are located in the adjusting section and are installed on the pump shaft in the axial direction, and the external medium enters from the inlet section, is guided by the plurality of flow guides and is discharged from the outlet section.
[0008] According to the high-lift submerged pump provided by the present application, the flow guide comprises a partial flow impeller, the partial flow impeller is fixedly connected to the pump shaft, a plurality of intermediate bodies are fixedly connected to the inner side wall of the cylinder in the axial direction, radial guide vanes are arranged between adjacent two intermediate bodies, and the partial flow impeller is guided by the radial guide vanes outside.
[0009] According to the high-lift submerged pump provided by the present application, a plurality of backflow holes are formed in the bottom of the blade of the partial flow impeller.
[0010] According to the high-lift submerged pump provided by the present application, shaft sleeves are fixedly connected to both ends of the pump shaft, bearing seats are fixedly connected to the inner walls of the inlet section and the outlet section, and sliding bearings are arranged between the shaft sleeves and the bearing seats.
[0011] According to the high-lift submerged pump provided by the present application, the sliding bearings are made of hard graphite, and the shaft sleeves are made of hard alloy.
[0012] According to the high-lift submerged pump provided by the present application, thrust discs are arranged at both ends of the pump shaft, and the thrust discs are located between the partial flow impeller and the bearing seat.
[0013] According to the high-lift submerged pump provided by the application, a plurality of liquid inlet holes are formed on the inlet section shell.
[0014] According to the high-lift submerged pump provided by the application, a plurality of liquid inlet holes are formed on the inlet section shell.
[0015] Compared with the prior art, the application has the following advantages and technical effects:
[0016] The high-lift submerged pump provided by the application has the following advantages: when used, the pump shaft rotates under the drive of the motor, the impeller rotates to work, the deep well medium is sucked into the flow guide from the inlet section, and flows step by step until it flows out from the outlet section, because the impeller adopts a partial flow impeller, the outlet angle is large, and the single-stage lift is relatively high; the hard graphite sliding bearing and the hard alloy shaft sleeve friction pair are adopted, have self-lubricating function and good wear resistance, can bear a high-speed and high-power rotor of ≥10000r / min, and the multi-stage impeller works step by step, so that the lift generated is high. The submerged pump of the application has the advantages of small diameter, high speed, compact structure, and high reliability, and the lift can reach more than one kilometer. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only represent some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings:
[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0019] Among them, 1, pump shaft; 2, inlet section; 3, shaft sleeve; 4, bearing seat; 5, cylinder; 6, sliding bearing; 7, thrust disc; 8, adjusting section; 9, intermediate body; 10, radial guide vane; 11, partial flow impeller; 12, outlet section; 13, liquid inlet hole; 14, flow hole. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.
[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0022] Referring to Figure 1 The application provides a high-lift submerged pump, comprising:
[0023] A cylinder body 5 is sequentially provided with an inlet section 2, an adjusting section 8 and an outlet section 12 from one end to the other end, and a pump shaft 1 is rotatably connected in the cylinder body 5, and one end of the pump shaft 1 extends out of the inlet section 2 and is fixedly connected with an output end of an external motor.
[0024] A plurality of flow guides are located in the adjusting section 8 and are mounted on the pump shaft 1 in the axial direction, and external medium enters from the inlet section 2, is guided by the plurality of flow guides and is discharged from the outlet section 12.
[0025] In an embodiment of the application, the pump shaft 1 rotates under the drive of the motor, the flow guides rotate to work, deep-well medium is sucked into the flow guides from the inlet section 2 and flows step by step until it flows out of the outlet section 12, and since the rotation speed of the flow guides is high, the outlet angle is large, and the plurality of stages are distributed and work step by step, the generated lift is high.
[0026] As an optional implementation, the flow guides comprise a partial flow impeller 11 fixedly connected on the pump shaft 1, a plurality of intermediate bodies 9 are fixedly connected on the inner side wall of the cylinder body 5 in the axial direction, radial guide vanes 10 are arranged between adjacent two intermediate bodies 9, and the outer side of the partial flow impeller 11 is guided by the radial guide vanes 10.
[0027] In an embodiment of the application, the outer side of the partial flow impeller 11 is guided by the radial guide 10, and the radial force is balanced.
[0028] As an optional implementation, a plurality of backflow holes are formed in the bottom of the blade of the partial flow impeller 11.
[0029] In an embodiment of the application, the partial flow impeller 11 suitable for high rotation speed is adopted, a plurality of backflow holes are formed in the bottom of the blade of the partial flow impeller 11, so as to reduce the axial force on both sides of the impeller and automatically balance the axial force.
[0030] As an optional implementation, the pump shaft 1 is fixedly connected with a shaft sleeve 3 at both ends, a bearing seat 4 is fixedly connected on the inner wall of the inlet section 2 and the outlet section 12, and a sliding bearing 6 is arranged between the shaft sleeve 3 and the bearing seat 4.
[0031] In an embodiment of the application, the sliding bearing 6 is made of hard graphite material, and the shaft sleeve 3 is made of hard alloy material.
[0032] In an embodiment of the application, the shaft sleeve 3 is connected through the bearing seat 4 arranged, and since the external force borne by the sliding bearing 6 is small, the safety and reliability of the pump are improved.
[0033] As an optional implementation, the pump shaft 1 is provided with a thrust disc 7 at both ends, and the thrust disc 7 is located between the partial flow impeller 11 and the bearing seat 4.
[0034] In one embodiment of the present application, the partial flow impeller 11 and the bearing seat 4 are provided with a thrust disc 7.
[0035] As an optional implementation, a plurality of liquid inlet holes 13 are formed on the casing of the inlet section 2.
[0036] In one embodiment of the present application, the external medium enters the inlet section 2 from the mine through the liquid inlet hole 13.
[0037] As an optional implementation, a flow hole 14 is formed on the bearing seat 4.
[0038] In one embodiment of the present application, the medium flows through the flow hole 14 on the bearing seat 4.
[0039] Working process of the present application: in use, the pump shaft 1 rotates under the drive of the motor, the partial flow impeller 11 rotates and works, the deep well medium is sucked from the liquid inlet hole 13 and enters the partial flow impeller 11 from the flow hole 14, and then enters the radial guide vane 10 after being pressurized, and then enters the next stage of partial flow impeller 11 and the next stage of radial guide vane 10, and finally flows out from the outlet section 12. Since the partial flow impeller has high rotating speed and large outlet angle, and the multi-stage partial flow impeller works step by step, the generated lift is high.
[0040] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0041] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.
Claims
1. A high-lift submersible pump, characterized in that: include: A cylinder (5), wherein the cylinder (5) is provided with an inlet section (2), an adjustment section (8) and an outlet section (12) in sequence from one end to the other end, a pump shaft (1) is rotatably connected inside the cylinder (5), and one end of the pump shaft (1) extends out of the inlet section (2) and is fixedly connected to the output end of an external motor; A plurality of flow guides are located in the regulating section (8) and are axially mounted on the pump shaft (1). External media enters from the inlet section (2), is guided by the plurality of flow guides, and is discharged from the outlet section (12).
2. A high-lift submersible pump according to claim 1, characterized in that: The flow guide member comprises a partial flow impeller (11), the partial flow impeller (11) is fixedly connected to the pump shaft (1), a plurality of intermediate bodies (9) are fixedly connected along the axial direction on the inner side wall of the cylinder (5), radial guide vanes (10) are provided between two adjacent intermediate bodies (9), and the outer side of the partial flow impeller (11) is guided by the radial guide vanes (10).
3. A high-lift submersible pump according to claim 2, characterized in that: A plurality of return flow holes are provided at the bottom of the blades of the partial flow impeller (11).
4. A high-lift submersible pump according to claim 2, characterized in that: Both ends of the pump shaft (1) are fixedly connected to shaft sleeves (3), the inner walls of the inlet section (2) and the outlet section (12) are fixedly connected to bearing seats (4), and a sliding bearing (6) is provided between the shaft sleeves (3) and the bearing seats (4).
5. A high-lift submersible pump according to claim 4, characterized in that: Thrust discs (7) are provided at both ends of the pump shaft (1), and the thrust discs (7) are located between the partial flow impeller (11) and the bearing seat (4).
6. The high-lift submersible pump according to claim 1, characterized in that: A plurality of liquid inlet holes (13) are provided on the outer shell of the inlet section (2).
7. The high-lift submersible pump according to claim 4, characterized in that: The bearing seat (4) is provided with a flow hole (14).
8. The high-lift submersible pump according to claim 4, characterized in that: The sliding bearing (6) is made of hard graphite, and the shaft sleeve (3) is made of hard alloy.