Integrated Seal Cartridge Assembly for Centrifugal Separators
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Solution Overview
Problem
Existing centrifugal separators face challenges in ensuring easy and correct assembly of sealing arrangements between stationary and rotatable components, leading to potential faulty installations.
Innovation Solution
A seal cartridge is introduced, comprising a first and second sealing unit that form a single module, with the first unit connected to the stationary structure and the second unit connected to the rotatable system, ensuring proper alignment and assembly, and can be handled as a single entity during installation and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing arrangement is provided as two separate parts (first sealing unit and second sealing unit) that need to be assembled, then the seal can be installed in a centrifugal separator, but the risk of faulty assembly increases and installation complexity increases
Solution Approach 1:
The patent combines the first sealing unit and second sealing unit into a single integrated seal cartridge assembly. The first sealing unit (stationary) and second sealing unit (rotatable) are pre-assembled with their respective mounting features (first mounting feature and second mounting feature) in a fixed spatial relationship, forming one cohesive unit that eliminates assembly errors while maintaining sealing effectiveness.
2Adaptability or versatility
If the first and second sealing units are assembled separately in the centrifugal separator, then flexibility in installation is provided, but the risk of incorrect assembly increases
Solution Approach 1:
The seal cartridge is pre-assembled at the manufacturing stage with the first and second sealing units positioned in their correct spatial relationship. The first mounting feature and second mounting feature are pre-configured on the respective sealing units, ensuring that when the entire seal cartridge is installed in the centrifugal separator, the sealing surfaces align perfectly without requiring precise field assembly.
3Reliability
If the seal cartridge forms one integrated entity, then faulty assembly is prevented, but the device complexity increases
Solution Approach 1:
The sealing system is segmented into two functional units (first sealing unit and second sealing unit) that are integrated within a single seal cartridge. This segmentation allows each sealing unit to be optimized for its specific function (stationary vs. rotatable) while maintaining their correct spatial relationship through the shared first and second mounting features, preventing assembly errors without over-complicating the overall design.
Data Source
Figure 1
Figure 2~3b
Figure 4a~4c
AI summary
The disclosure concerns a seal cartridge (14) for a centrifugal separator (2). The seal cartridge (14) comprises a first sealing unit (20) and a second sealing unit (22). The first sealing unit (20) is connectable to a stationary structure (13) of the centrifugal separator (2) and the second sealing unit (22) is connectable to a rotatable system (9) of the centrifugal separator (2). At least a portion of a first fluid flow path (16) extends through the first and second sealing units (20, 22) and the first and second sealing units (20, 22) are arranged in sealing abutment to seal the first fluid flow path (16). The first sealing unit (20) is arranged in a first casing portion (24), and the second sealing unit (22) is secured in relation to the first casing portion (24) such that the seal cartridge (14) forms one entity.