Sealing Plug Assembly With Guide Ring to Prevent Seal Ring Wear
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Solution Overview
Problem
Existing sealing plug assemblies for high-pressure processing tanks face challenges in maintaining effective sealing and longevity due to high-pressure liquid-induced stress and potential rotation of sealing components, leading to premature wear and leakage.
Innovation Solution
A sealing plug assembly comprising a plug body, a guide ring with a first inclined surface, a first sealing ring with a matching second inclined surface, and an elastic component, where the first sealing ring is positioned to be uniformly pushed by high-pressure liquid along the inclined surface, preventing rotation and reducing abrasion, and the elastic component aids in easy unplugging by storing resilience force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing plug assembly is used to seal a pressure tank for high-pressure processing, then the sealing effectiveness is improved, but the sealing components are subjected to high-pressure liquid-induced stress and rotation leading to premature wear and leakage
Solution Approach 1:
The sealing plug assembly is divided into multiple functional components: a plug body, a guide ring, a first sealing ring, and a second sealing ring. Each component performs a specific sealing function, distributing the high-pressure stress across multiple elements rather than concentrating it on a single sealing component, thereby extending the overall lifespan while maintaining sealing effectiveness.
Solution Approach 2:
The guide ring acts as an intermediary component between the plug body and the sealing rings. It guides the sealing rings to move along a predetermined path, preventing rotation and misalignment that would cause premature wear. This intermediary structure protects the sealing rings from direct rotational stress while maintaining sealing contact.
2Reliability
If sealing components are designed to withstand high-pressure stress, then sealing reliability is improved, but the components become more complex and harder to assemble
Solution Approach 1:
The sealing components are nested within each other in a compact arrangement: the first sealing ring and second sealing ring are positioned within the plug body, with the guide ring surrounding them. This nested structure achieves complex sealing functionality through concentric arrangement rather than through complex individual component designs, simplifying manufacturing while maintaining high-pressure reliability.
Solution Approach 2:
The guide ring features an asymmetric cross-sectional shape with a first inclined surface and a second inclined surface at different angles. This asymmetric design allows the guide ring to effectively guide the sealing rings in one direction while providing structural support, achieving reliable high-pressure sealing without requiring additional symmetric components that would increase complexity.
3Reliability
If the first sealing ring is positioned closer to the exposed side to improve sealing, then sealing effectiveness is improved, but the sealing ring is more exposed to high-pressure liquid and experiences greater wear
Solution Approach 1:
The guide ring serves as a protective intermediary between the high-pressure liquid environment and the first sealing ring. It shields the sealing ring from direct exposure to the harshest conditions while maintaining the sealing contact necessary for effectiveness, thereby reducing abrasion and stress on the sealing ring.
Solution Approach 2:
The guide ring is positioned to provide protective coverage over the first sealing ring before the sealing ring is directly exposed to high-pressure liquid impact. This beforehand protection reduces the abrasive effects of the liquid on the sealing ring while maintaining sealing functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures a tighter seal, extends the lifespan of sealing components by minimizing abrasion and stress, and facilitates easy assembly and disassembly by utilizing the stored resilience force of the elastic component.
Implementation Method 1
an elastic component sleeved on the first sealing ring
Implementation Method 2
the elastic component aids in easy unplugging by storing resilience force
Implementation Method 3
the first sealing ring is positioned to be uniformly pushed by high-pressure liquid along the inclined surface
Implementation Method 4
pushed by high-pressure liquid along the inclined surface
Data Source
AI summary
The disclosure provides a sealing plug assembly including a plug body, a guide ring, a first sealing ring and an elastic component. The plug body has an annular outer surface having a plug side and an exposed side opposite each other and a first annular recess located at the annular outer surface and located between the plug side and the exposed side. The guide ring is sleeved on the plug body and located in the first annular recess. The guide ring has a first inclined surface. The first sealing ring is sleeved on the plug body and located in the first annular recess. The first sealing ring is located farther away from the exposed side of the annular outer surface than the guide ring. The first sealing ring has a second inclined surface matching the first inclined surface. The elastic component is sleeved on the first sealing ring.