Jacketed Foam Exclusion Plug for High-Temperature Debris Sealing
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Solution Overview
Problem
Existing foreign material exclusion devices are not adequately suited for high temperature environments and lack a resilient foam body encased in a heat-resistant jacket to prevent debris contact, posing risks in power generation and maintenance.
Innovation Solution
A high temperature resistant foreign material exclusion device featuring a compressible and re-expandable resilient foam body encased in a flexible, flame-resistant jacket, designed for use in tubes or cavities, with a handle and optional device identifier, ensuring debris exclusion and thermal stability up to 300° F (149° C).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If existing foreign material exclusion devices are used in high temperature environments, then they can provide basic debris exclusion, but they cannot withstand temperatures of 300° F. (149° C.) or higher and may deform or fail
Solution Approach 1:
The device combines heat-resistant foam material with a protective jacket made of heat-resistant fabric or涂层, creating a composite structure that maintains both the sealing function of the foam and the thermal stability of the jacket, enabling operation at temperatures of 300° F. (149° C.) or higher without deformation or failure
Solution Approach 2:
The patent specifies that the foam body and jacket materials must have a maximum continuous use temperature of at least 300° F. (149° C.), changing the material parameter threshold to ensure high-temperature reliability. This parameter specification ensures the device maintains its structural integrity and sealing capability in high-temperature environments
2Ease of operation
If a resilient foam body is used for foreign material exclusion, then it can be compressed and re-expanded for installation and removal, but the foam is vulnerable to damage from debris contact and cannot withstand high temperatures
Solution Approach 1:
The protective jacket acts as a flexible shell that fully encases the foam body, allowing the foam to maintain its compressible and re-expandable properties for easy installation and removal while the jacket shields it from debris contact and thermal damage
Solution Approach 2:
The protective jacket serves as an intermediary between the foam body and the external environment, absorbing the harmful effects of debris contact and high temperatures while allowing the foam to perform its sealing function without direct exposure to damaging factors
3Object-affected harmful factors
If the foam body is fully encased in a protective jacket, then debris contact is prevented, but the device complexity increases and installation becomes more difficult
Solution Approach 1:
The flexible protective jacket fully encases the foam body in a simple yet effective design that prevents debris contact while maintaining ease of installation. The flexibility of the jacket allows it to conform to the foam during compression for insertion and to expand with the foam during removal, avoiding complex fastening or assembly mechanisms
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 device effectively seals off sensitive areas from debris, maintains thermal integrity, and reduces radiation exposure, while being metal-free and easy to install, thus enhancing safety and efficiency in high-temperature environments.
Implementation Method 1
a body (30) comprising a resilient foam... wherein the body is compressible and re-expandable
Implementation Method 2
wherein the jacket comprises a flame resistant material, wherein the jacket has a maximum continuous use temperature of at least 300° F. (149° C.)
Data Source
AI summary
Foreign material exclusion devices that are particularly suited for use in high temperature environments, but can also be used at ambient room temperature or below as well. The devices include a shaped resilient body comprising heat-resistant foam fully encased in a heat resistant jacket.