Mechanical seal anti-winding structure of sewage pump
By installing a raised rib plate on the pump cover and impeller of the sewage pump, the fibers are prevented from being wound on the mechanical seal and discharged, the mechanical seal damage caused by the fiber material is solved and the pump group leakage problems are improved, and the reliability and stability of the equipment are improved.
Patent Information
- Application Number
- CN202422586809.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
When the sewage pump transports a medium containing solid particles or fiber substances, the fiber substances are easily wrapped around the mechanical seal, resulting in damage to the mechanical seal and leakage of the pump group, and the on-site working conditions limit regular cleaning.
Protruding rib plates are provided on the pump cover and impeller. The rib plates on the pump cover prevent the fibers from rotating and wrapping on the machine seal. The rib plates on the impeller discharge the fibers out of the mechanical seal chamber to prevent the fibers from being wound in the mechanical seal.
Effectively prevent fibers from wrapping around the mechanical seal, reducing the risk of mechanical seal damage and reducing pump set failure and leakage.
Smart Images
Figure CN223136404U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sewage pump, and more specifically, to a mechanical seal anti-winding structure of a sewage pump. Background Art
[0002] The medium transported by the sewage pump often contains solid particles or fibrous substances. These fibrous substances are easily wound around the mechanical seal, resulting in damage to the mechanical seal and thus causing leakage of the pump unit.
[0003] Due to the limitation of the on-site working conditions, there is basically no regular cleaning. When the fibrous substances are wound to a certain extent, in most cases, the winding causes damage to the mechanical seal and pump unit failure. Summary of the Utility Model
[0004] Aiming at the above defects existing in the prior art, the purpose of the utility model is to provide a mechanical seal anti-winding structure of a sewage pump. By providing a plurality of raised rib plates on the pump cover, it is possible to prevent fibrous substances from rotating and winding around the mechanical seal. At the same time, through the raised rib plates provided on the impeller, the fibrous substances can be discharged to prevent the fibrous substances from winding inside the mechanical seal.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A mechanical seal anti-winding structure of a sewage pump, including a volute. A pump cover is provided at the top of the volute, and an impeller is provided inside the volute;
[0007] A plurality of first rib plates are provided on the pump cover close to the mechanical seal cavity side;
[0008] One ends of the first rib plates all face the center position of the pump cover, and the other ends all face the edge position of the pump cover;
[0009] A plurality of second rib plates are provided on the impeller close to the edge position side;
[0010] One ends of the second rib plates all face the center position of the impeller, and the other ends all face the edge position of the impeller.
[0011] Preferably, 4 to 6 first rib plates are provided and are evenly arranged around the center position of the pump cover;
[0012] The height of the first rib plate is 5 to 10 mm.
[0013] Preferably, 8 to 12 second rib plates are provided and are evenly arranged around the center position of the impeller;
[0014] The height of the second rib plate is 8 to 10 mm.
[0015] A mechanical seal anti-winding structure of a sewage pump provided by the utility model prevents fibrous substances from rotating and winding around the mechanical seal by providing several raised rib plates on the pump cover, and at the same time, the fibrous substances can be discharged through the raised rib plates provided on the impeller, preventing the fibrous substances from winding in the mechanical seal. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the sewage pump;
[0017] Figure 2 is a schematic diagram of the pump cover in the mechanical seal anti-winding structure of the utility model, (a) is the front view, and (b) is the side view;
[0018] Figure 3 is a schematic diagram of the impeller in the mechanical seal anti-winding structure of the utility model, (a) is the front view, and (b) is the side view;
[0019] Figure 4 is a schematic diagram of the working principle of the mechanical seal anti-winding structure of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] In order to better understand the above technical solutions of the present utility model, the technical solutions of the present utility model will be further described below with reference to the drawings and embodiments.
[0021] Combined with Figure 1 As shown, a mechanical seal anti-winding structure of a sewage pump provided by the present utility model includes a volute 1, a pump cover 2 is arranged at the top of the volute 1, and an impeller 3 is arranged inside the volute 1.
[0022] Combined with Figure 2 As shown, in order to prevent fibrous substances from winding around the mechanical seal, a plurality of first rib plates 4 are arranged on the circular pump cover 2 on the side close to the mechanical seal cavity, and are evenly arranged around the center position of the pump cover 2.
[0023] One end of each first rib plate 4 faces the center position of the pump cover 2, and the other end faces the edge position of the pump cover 2, and is arranged in a radial shape.
[0024] Combined with Figure 3 As shown, a plurality of second rib plates 5 are arranged on the circular impeller 3 on the side close to the edge position, and are evenly arranged around the center position of the impeller 3.
[0025] One end of each second rib plate 5 faces the center position of the impeller 3, and the other end faces the edge position of the impeller 3, and is arranged in a radial shape.
[0026] There are 4 to 6 first rib plates 4, and the raised height is 5 to 10 mm.
[0027] There are 8 to 12 second rib plates 5, and the raised height is 8 to 10 mm.
[0028] Combined Figure 4 As shown, when the sewage pump is running, when fibrous materials enter the mechanical seal cavity 6 of the sewage pump, due to the obstruction of the first rib plate 4 on the pump cover 2, the fibrous materials will not rotate with the liquid and wind around the mechanical seal 7 in the mechanical seal cavity 6. In addition, when the impeller 3 rotates, the fibrous materials are easily introduced into the second rib plate 5 on the back of the impeller 3. Under the action of the rotating force of the impeller 3, these fibrous materials will be discharged from the mechanical seal cavity 6 along the second rib plate 5, thus achieving the effect of preventing fiber winding. The first rib plate 4 on the pump cover 2 plays a role in preventing the fibrous materials from rotating in the mechanical seal cavity 6, facilitating discharge and reducing the risk of winding. The second rib plate 5 on the impeller 3 plays a role in discharging the fibrous materials from the mechanical seal cavity 6, and the two rib plates cooperate with each other.
[0029] Those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention and are not used to limit the present invention. As long as within the scope of the essential spirit of the present invention, changes and modifications to the above-described embodiments will fall within the scope of the claims of the present invention.
Claims
1. A mechanical seal anti-winding structure for a sewage pump, including a volute casing, a pump cover is provided at the top of the volute casing, and an impeller is provided inside the volute casing, characterized in that: A plurality of first rib plates are provided on the pump cover near the mechanical seal cavity side; One end of each of the first rib plates faces the center position of the pump cover, and the other end faces the edge position of the pump cover; A plurality of second rib plates are provided on the impeller near the edge position side; One end of each of the second rib plates faces the center position of the impeller, and the other end faces the edge position of the impeller.
2. The mechanical seal anti-winding structure of the sewage pump according to claim 1, characterized in that: There are 4 to 6 first rib plates, which are evenly arranged around the center position of the pump cover; The height of the first rib plate is 5 to 10 mm.
3. The mechanical seal anti-winding structure of the sewage pump according to claim 1, characterized in that: There are 8 to 12 second rib plates, which are evenly arranged around the center position of the impeller; The height of the second rib plate is 8 to 10 mm.