一种卧螺离心机罩壳密封结构
By designing water-blocking components and water-slinging rings, the problem of labyrinth seals being unable to effectively seal viscous fluids is solved, achieving effective sealing of viscous fluids, improving the durability and stability of the sealing structure, and ensuring the efficient operation of the centrifuge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HIGH SEPARATION CENTRIFUGE CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing labyrinth seal structures cannot effectively seal viscous fluids, which tend to adhere to the seal gaps, reducing the sealing effect.
A sealing structure for the casing of a horizontal screw centrifuge was designed, including a water-blocking component and a water-throwing ring. The water-throwing ring is connected to the journal, and the liquid is thrown out through the stepped hole. Combined with the double sealing design of the sealing component, sealing gasket, and sealing ring, the sealing performance is enhanced.
It achieves effective sealing of viscous fluids, improves the durability and stability of the sealing structure, prevents liquid leakage, and ensures efficient operation of the centrifuge.
Smart Images
Figure CN224507322U_ABST
Abstract
Claims
1. A seal structure for a bowl of a decanter centrifuge, the seal structure (1) being arranged between a shaft journal (3) of the decanter centrifuge and an end plate (5) of a bowl housing (4), characterized in that: The sealing structure (1) includes a water-blocking component (6) and a water-throwing ring (12); The water baffle (6) is connected to the end plate (5) of the cover (4), and a stepped hole (15) is provided in the middle of the water baffle (6). The water-throwing ring (12) is connected to the journal (3). The journal (3) passes through the stepped hole (15), and the water-throwing ring (12) is located inside the stepped hole (15); the water-blocking part (6) is provided with a drain port (10) on the bottom side, and the drain port (10) is connected to the stepped hole (15).
2. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: A ring-shaped sealing element (8) is connected inside the stepped hole (15) of the water-blocking component (6).
3. A seal for a bowl of a decanter centrifuge as defined in claim 2, wherein: The inner side of the seal (8) is provided with a sealing groove, and the outer side is provided with an installation groove. A sealing gasket (9) is provided in the sealing groove, and a sealing ring (7) is provided in the installation groove.
4. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: The outer side of the seal (8) is provided with two mounting grooves, and a sealing ring (7) is provided in each mounting groove.
5. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: The cross-section of the water-throwing ring (12) is L-shaped. A water-throwing area is formed between the end of the water-throwing ring (12) and the end of the water-blocking component (6). The water-throwing area is connected to the drain port (10).
6. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: The water-slinging ring (12) is connected to the journal (3) by screws.
7. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: The end face of the water-throwing ring (12) is provided with four spiral blades (14).
8. A seal for a bowl of a decanter centrifuge as defined in claim 1, wherein: An extension (13) is fixedly connected to the side of the water baffle (6) near the drain port (10). The extension (13) is connected to the end plate (5) of the cover (4) and a drain channel (11) is formed between the extension (13) and the end plate (5) of the cover (4). The drain channel (11) is connected to the drain port (10).