Composite Gasket Seal for Marine Hatch Durability
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Solution Overview
Problem
Current hatch seal systems in water vessels are prone to failure due to rotting rubber seals and loose adhesion in extreme weather conditions, leading to water ingress and potential vessel sinking.
Innovation Solution
A flush mount deck hatch seal system featuring a frame with a gasket assembly composed of an elongate strip of metal material surrounded by synthetic rubber, providing a watertight seal that remains secure under extreme conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural rubber is used for the seal, then the seal provides good initial sealing performance, but the seal is prone to rotting and degradation over time
Solution Approach 1:
The seal is constructed as a composite structure with an inner core of rot-resistant material (metal, plastic, or composite) surrounded by an outer layer of sealing material (natural or synthetic rubber). This composite design allows the seal to maintain both initial sealing performance and long-term durability, as the rot-resistant core prevents degradation while the outer layer provides the necessary sealing function.
2Ease of manufacture
If glue is used for adhering the seal to the frame, then the seal can be easily installed, but the seal frequently comes loose from the frame in extreme weather conditions
Solution Approach 1:
The seal is divided into two functional segments: an inner core that provides structural integrity and rot resistance, and an outer sealing layer that provides the waterproof function. This segmentation allows each component to be optimized independently - the core for durability and the outer layer for sealing - while together they solve the adhesion problem by providing a more robust attachment system.
Solution Approach 2:
The composite seal structure with its rot-resistant core and sealing outer layer creates a more reliable attachment system that resists loosening in extreme weather conditions while maintaining ease of installation.
3Reliability
If the seal freezes to the hatch cover in extreme cold, then the seal maintains contact with the frame, but the seal comes detached from the frame when the hatch cover is pried open
Solution Approach 1:
The composite seal with its rot-resistant core and sealing outer layer provides both maintained contact during freezing conditions and sufficient attachment strength to prevent detachment when the hatch is opened, solving the contradiction between reliability and strength.
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 system effectively prevents water from entering the vessel, even in extreme weather, thereby ensuring the longevity and integrity of the hatch seal and preventing potential sinking.
Implementation Method 1
an edge of the peripheral lip may be pressed into the synthetic rubber material, causing the synthetic rubber material to surround the edge of the peripheral lip and thereby creating a watertight seal
Data Source
AI summary
A hatch seal system for a hatch opening of a water vessel deck includes a frame, a gasket assembly and a hatch cover. Particularly, the gasket assembly is disposed within the frame and includes an elongate strip of metal material, such as a strip of wire mesh, and a synthetic rubber material surrounding the elongate strip of metal material. The gasket system, along with the hatch cover, provide a watertight seal that will not dislodge from the frame under extreme weather conditions, thereby providing longevity and preventing sinking of a vessel on which the flush mount deck hatch seal system is installed.