Piston Compressor Throttle Ring Structure for Durable Dynamic Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing throttle rings in piston compressors are ineffective in sealing dynamic pressure components, leading to rapid wear of actual sealing elements and a reduced sealing function over time.
Innovation Solution
A throttle arrangement featuring a plurality of annular sealing discs and a sealing disc holder with an L-shaped radial section, allowing for axial clearance and gas passage openings to manage pressure and wear, thereby enhancing sealing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If frictionless sealing elements are used for throttle rings, then wear is reduced, but sealing effectiveness deteriorates
Solution Approach 1:
The throttle ring is designed with a frictionless sealing element that can dynamically adapt its sealing surface through controlled wear. The sealing element is replaceable and can be worn in a controlled manner to create an optimal sealing geometry, combining the benefits of low friction with effective sealing through the dynamic adjustment of contact surfaces.
Solution Approach 2:
The sealing characteristics are changed by controlling the wear process itself. The frictionless element is allowed to wear in a controlled fashion to achieve the desired sealing geometry, transforming the initial poor sealing condition into an optimal sealing state through parameter change over time.
2Duration of action of moving object
If throttle rings are designed as frictionless sealing elements, then wear is minimized, but sealing function is lost over time
Solution Approach 1:
The frictionless sealing element performs self-service by creating its own sealing geometry through controlled wear. The element is designed to wear in a specific pattern that establishes the optimal sealing surface, eliminating the need for external adjustment mechanisms while maintaining both low friction and effective sealing.
3Reliability
If contact between throttle ring and mating partner occurs during operation, then sealing is improved, but wear increases gap size
Solution Approach 1:
The sealing system is segmented into a replaceable frictionless sealing element and a stationary mating partner. The sealing element can be worn and replaced independently, allowing the gap to be reset to its original dimensions without replacing the entire throttle ring assembly, thus maintaining sealing effectiveness while managing wear.
Data Source
AI summary
A throttle arrangement for sealing a sliding surface of a body in a piston compressor the throttle arrangement having annular sealing discs and a sealing disc holder having an L-shaped radial section having a first leg running in the axial direction and a second leg running transversely, the second leg being annular and having a bearing surface pointing in the direction of the high-pressure side, the sealing discs are stacked one on top of one another axially, the first leg being cylindrical extending from the bearing surface toward the high-pressure side, the axial height of the first leg H4 allow bearing surface to have axial play, the first leg gas passage openings, the first leg having a boundary surface facing in the sealing discs, aligned coaxially with the first limb and the body, a first annular gap RS1 is formed between the boundary surface and the sealing discs.