Cryogenic Tank Membrane Anchor With Interposition Part
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Solution Overview
Problem
The existing membrane anchor mechanisms for cryogenic tanks are limited in their ability to maintain sealing when the membrane surface is not flat, as the pressing parts do not effectively come into surface-contact with the membrane, leading to decreased sealing performance.
Innovation Solution
Incorporating an interposition part with a first abutment surface for contact with the pressing part and a second abutment surface for contact with the membrane, allowing for surface-contact regardless of the membrane shape, thereby preventing a decrease in sealing between the pressing part and the membrane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pressing part is installed directly on a non-flat membrane surface, then the membrane anchor mechanism can press arbitrary positions of the membrane, but the pressing part and membrane cannot come into surface-contact, decreasing sealing
Solution Approach 1:
An interposition part is introduced as a mediator between the pressing part and the membrane. This interposition part includes a first abutment surface that contacts the pressing part and a second abutment surface that contacts the membrane, enabling surface-contact sealing even when the membrane surface is non-flat. The interposition part resolves the contradiction by providing an adaptive interface that maintains reliable sealing while allowing the pressing mechanism to function on arbitrary membrane positions and shapes.
2Adaptability or versatility
If the membrane has a non-flat shape, then the membrane can be installed in corner portions with various shapes, but the pressing part cannot come into surface-contact with the membrane, decreasing sealing
Solution Approach 1:
The interposition part serves as an intermediary component that adapts to non-flat membrane shapes while maintaining surface-contact sealing. The second abutment surface of the interposition part conforms to the membrane's shape, allowing the system to accommodate various membrane configurations including corner portions with different shapes, while the first abutment surface maintains contact with the pressing part to ensure reliable sealing.
Solution Approach 2:
The interposition part is designed with different surface characteristics: the first abutment surface is configured to contact the pressing part, while the second abutment surface is configured to contact the membrane. This local differentiation of surface properties allows the single component to adapt to various membrane shapes while maintaining effective sealing at the membrane interface.
Data Source
AI summary
A cryogenic tank includes a membrane anchor mechanism which fixes a membrane provided on an inner wall surface side of a concrete wall via a heat insulating material to the concrete wall, a pressing par which is provided by the membrane anchor mechanism and presses the membrane from the inside of the cryogenic tank, and an interposition part which is interposed between the pressing part of the membrane anchor mechanism and the membrane, and includes a first abutment surface coming into surface-contact with the pressing part and a second abutment surface coming into surface-contact with the membrane.