High-quality mechanical seal for submerged pump
By designing a high-quality mechanical sealing structure including a lower connector, a spring, a rotor and an ear-shaped part, the upper and lower sealing problems of liquid lower pump are solved, and stable sealing effect and power transmission are achieved.
Patent Information
- Application Number
- CN202422175312.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When the existing liquid lower pump is not isolated from the upper part and the lower part, the material is prone to enter the upper part of the pump body, damage the power components, and the conventional sealing ring effect is limited.
A high-quality mechanical seal structure including a lower connector, a spring, a rotor, a follower and an ear-shaped part is designed, and the combination of the ear-shaped part and the lower connector is ensured that the material does not enter the upper part of the pump body through the combination of the ear-shaped part and the lower connector.
Effectively prevent materials from entering the upper part of the pump body, ensure sealing effect, protect power components, and provide a stable rotational power foundation.
Smart Images
Figure CN223062721U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of submersible pumps, and specifically relates to a high-quality mechanical seal for submersible pumps. Background Technique
[0002] A submersible pump is a widely used pump. During the working process, its impeller, housing and other flow-through components are immersed in the material, so that the material enters from the lower part and is output from the side outlet, thus completing the transportation of the material. Although in an ideal situation, the material will not flow through the upper part of the pump body, in actual applications, if no isolation measures are taken between the upper and lower parts of the pump body, it is very easy for the material to enter the upper part of the pump body and damage structures such as power components. To solve this problem, relevant technicians have set conventional sealing rings between the upper and lower parts of the pump body. Although this can achieve a certain sealing effect, the situation where the material enters the upper part of the pump body at the gap still occurs from time to time. Based on this situation, how to ensure the sealing effect between the upper and lower parts of the submersible pump and prevent the material from entering the upper part of the pump body and damaging relevant structures has increasingly become an urgent problem for relevant technicians to solve. Content of the Utility Model
[0003] In order to solve the above technical problems, the utility model provides a high-quality mechanical seal for submersible pumps.
[0004] A high-quality mechanical seal for submersible pumps includes a lower connector, and is characterized in that: a spring is arranged at the central position inside the lower connector, a rotator is fixedly arranged above the spring, a follower is arranged inside the upper part of the rotator, an upper connector is arranged above the follower, an ear-shaped part is arranged on the upper part of the rotator, the cross-sectional shape of the ear-shaped part is an inverted U shape, and the upper part of the lower connector is slidably inserted into the inner side of the ear-shaped part and abuts against the top of the ear-shaped part.
[0005] Further, a protruding part is arranged on the periphery of the follower, and the outer diameter of the protruding part is larger than the inner diameter of the ear-shaped part.
[0006] Further, the number of both the ear-shaped parts and the protruding parts is 3, and the ear-shaped parts and the protruding parts are arranged alternately.
[0007] Further, an inner sealing ring is arranged between the follower and the rotator, and the inner sealing ring is in contact with the lower surface of the follower and the inner wall of the rotator.
[0008] Further, an outer washer is fixedly arranged inside the lower part of the lower connector, the lower part of the spring is fixedly connected to the outer washer, an inner washer is arranged inside the outer washer, and the inner washer is in the shape of an open ring.
[0009] Further, an outer sealing ring is arranged on the periphery of the upper part of the upper connector, and the outer sealing ring is in contact with the outer wall of the upper connector.
[0010] The beneficial effects of a high-quality mechanical seal for a submersible pump of the present utility model are as follows:
[0011] 1. In the installed state, the upper connector is fixedly connected to the pump body, and the central position of the lower connector is fixedly connected to the main shaft of the submersible pump. Against this background, the design where the ear-shaped part is inverted U-shaped and the upper part of the lower connector is slidably inserted into the inner side of the ear-shaped part provides a good static structural basis for preventing materials from entering the upper part of the pump body through this mechanical seal. The inner gasket, inner sealing ring, and outer sealing ring provide a further static structural basis for preventing materials from entering the upper part of the pump body through this mechanical seal. The spring presses on the rotator to make the follower fit with the upper connector, providing a good dynamic structural basis for preventing materials from entering the upper part of the pump body through this mechanical seal. The rotator drives the follower to rotate relative to the upper connector, providing a further dynamic structural basis for preventing materials from entering the upper part of the pump body through this mechanical seal. Thus, the sealing effect between the upper and lower parts of the submersible pump is effectively ensured, and it is effectively avoided that materials enter the upper part of the pump body and damage related structures;
[0012] 2. The upper part of the lower connector is slidably inserted into and abuts against the inner side of the ear-shaped part, providing a good structural basis for the rotator to obtain rotational power. The design where the outer diameter of the protruding part is larger than the inner diameter of the ear-shaped part effectively ensures the pushing of the ear-shaped part on the protruding part. The three ear-shaped parts and the protruding parts are arranged alternately, effectively ensuring the stability of the ear-shaped part pushing the protruding part. Thus, a good structural basis is provided for the rotator to drive the follower to rotate stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art, but it is not a limitation to the protection scope of the present utility model.
[0014] Figure 1 It is a schematic structural diagram (one) of the present utility model;
[0015] Figure 2 It is a schematic structural diagram (two) of the present utility model;
[0016] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.
[0017] Among them, 1 - upper connector, 2 - follower, 3 - lower connector, 4 - spring, 5 - rotator, 6 - outer sealing ring, 7 - protruding part, 8 - ear-shaped part, 9 - outer gasket, 10 - inner gasket, 11 - inner sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] For the sake of clearer description, in combination with the accompanying drawings of the specification, a high-quality mechanical seal for a submersible pump of the present utility model will be further described.
[0019] A high-quality mechanical seal for a submersible pump, including a lower connector 3, is characterized in that: a spring 4 is arranged at the central position inside the lower connector 3, a rotator 5 is fixedly arranged above the spring 4, a follower 2 is arranged inside the upper part of the rotator 5, an upper connector 1 is arranged above the follower 2, an ear-shaped part 8 is arranged on the upper part of the rotator 5, the cross-sectional shape of the ear-shaped part 8 is an inverted U shape, and the upper part of the lower connector 3 is slidably inserted into the inner side of the ear-shaped part 8 and abuts against the top of the ear-shaped part 8.
[0020] Furthermore, a protruding part 7 is arranged on the periphery of the follower 2, and the outer diameter of the protruding part 7 is larger than the inner diameter of the ear-shaped part 8.
[0021] Furthermore, the number of both the ear-shaped parts 8 and the protruding parts 7 is 3, and the ear-shaped parts 8 and the protruding parts 7 are arranged alternately.
[0022] Furthermore, an inner sealing ring 11 is arranged between the follower 2 and the rotator 5, and the inner sealing ring 11 is in contact with both the lower surface of the follower 2 and the inner wall of the rotator 5.
[0023] Furthermore, an outer washer 9 is fixedly arranged inside the lower part of the lower connector 3, the lower part of the spring 4 is fixedly connected to the outer washer 9, an inner washer 10 is arranged inside the outer washer 9, and the inner washer 10 is in the shape of an open ring.
[0024] Furthermore, an outer sealing ring 6 is arranged on the periphery of the upper part of the upper connector 1, and the outer sealing ring 6 is in contact with the outer wall of the upper connector 1.
[0025] The working principle of a high-quality mechanical seal for a submersible pump of the present utility model is as follows: The upper connector 1 is fixedly connected to a designated position of the pump body. At this time, the outer sealing ring 6 fits with the pump body. The central position of the lower connector 3 is fixedly connected to the main shaft of the submersible pump. At this time, the inner washer 10 fits with the main shaft of the submersible pump. The upper part of the lower connector 3 is slidably inserted into the inner side of the ear-shaped part 8 and abuts against the ear-shaped part 8. The spring 4 provides an upward pressure to the rotator 5, so that the follower 2 fits with the upper connector 1. At this time, the inner sealing ring 11 fits with both the follower 2 and the rotator 5, and the inner washer 10 fits with the main shaft of the submersible pump, so that the material will not enter the upper part of the pump body through this mechanical seal at the position of the inner washer 10. The upper part of the lower connector 3 abuts against the ear-shaped part 8 and combines with the inner sealing ring 11, so that the material will not enter the upper part of the pump body through this mechanical seal at the positions of the rotator 5 and the follower 2. The outer sealing ring 6 makes the material not enter the upper part of the pump body through this mechanical seal at the position of the outer sealing ring 6. The main shaft of the submersible pump drives the lower connector 3 fixedly connected thereto to rotate. The lower connector 3 drives the rotator 5 to rotate through abutting against the ear-shaped part 8. The ear-shaped part 8 pushes the protruding part 7, thereby causing the follower 2 to rotate. The follower 2 rotates relatively while fitting with the upper connector 1. This relative rotation makes the material not enter the upper part of the pump body through this mechanical seal between the follower 2 and the upper connector 1. In this way, the sealing effect can be ensured.
[0026] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative labor should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims
1. A high-quality mechanical seal for a submerged pump, comprising a lower connector, characterized in that: A spring is arranged at the central position inside the lower connector. A rotator is fixedly arranged at the upper part of the spring. A follower is arranged at the inner side of the upper part of the rotator. An upper connector is arranged above the follower. An ear-shaped part is arranged at the upper part of the rotator. The cross-sectional shape of the ear-shaped part is an inverted U shape. The upper part of the lower connector is slidably inserted into the inner side of the ear-shaped part and abuts against the top of the ear-shaped part.
2. The high-quality mechanical seal for a submerged pump according to claim 1, characterized in that, A protruding part is arranged on the periphery of the follower. The outer diameter of the protruding part is larger than the inner diameter of the ear-shaped part.
3. The high-quality mechanical seal for a submerged pump according to claim 2, characterized in that, The number of the ear-shaped parts and the protruding parts is 3 each, and the ear-shaped parts and the protruding parts are arranged alternately.
4. A high-quality mechanical seal for a submerged pump according to claim 1, characterized in that, An inner sealing ring is arranged between the follower and the rotator. The inner sealing ring is in fit with the lower surface of the follower and the inner wall of the rotator.
5. A high-quality mechanical seal for a submersible pump according to claim 1, characterized in that, An outer washer is fixedly arranged on the inner side of the lower part of the lower connector. The lower part of the spring is fixedly connected with the outer washer. An inner washer is arranged on the inner side of the outer washer. The inner washer is in the shape of an open ring.
6. A high-quality mechanical seal for a submerged pump according to claim 1, characterized in that, An outer sealing ring is arranged on the periphery of the upper part of the upper connector. The outer sealing ring is in fit with the outer wall of the upper connector.