Flame Arrestor Screw Structure for Easier Valve Leak Detection
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Solution Overview
Problem
Existing solenoid operated gas admission valves (SOGAVs) face challenges with cumbersome assembly and maintenance of sintered metal plugs used for flame arrestion and leak detection, which are prone to clogging.
Innovation Solution
A flame arrestor screw with an extended diameter and a through hole is introduced, providing a simple design with fewer components that allows for easy installation, removal, and cleaning, while effectively arresting flames and detecting leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sintered metal plug is used for flame arrestion and leak detection, then flame propagation is arrested and leak detection is enabled, but assembly becomes cumbersome and maintenance becomes difficult due to multiple components and small size
Solution Approach 1:
The patent combines the flame arrestion function and leak detection function into a single integrated sintered metal plug component. The plug simultaneously acts as a flame arrester and a leak detection element, eliminating the need for separate components and simplifying assembly while maintaining both safety functions.
Solution Approach 2:
The patent utilizes the porous structure of sintered metal to achieve flame arrestion. The porous material allows gas passage for leak detection while its pore structure prevents flame propagation, providing both required functions through the material's inherent properties.
2Reliability
If a sintered metal plug is used for flame arrestion, then flame propagation is prevented, but removal and cleaning become difficult due to the porous structure and small size
Solution Approach 1:
The patent segments the flame arrestion system into a removable sintered metal plug that can be independently accessed and replaced. The plug is designed as a separate component that can be removed from the housing without damaging other parts, facilitating maintenance and cleaning operations.
3Reliability
If a sintered metal plug with small clearance gap is used, then flame propagation is mitigated, but the assembly process becomes more difficult due to precise fitting requirements
Solution Approach 1:
The patent optimizes the clearance gap dimensions of the sintered metal plug to achieve effective flame arrestion. By carefully controlling the gap size within specific parameter ranges, the design ensures flame propagation prevention while maintaining ease of assembly through standard manufacturing tolerances.
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 flame arrestor screw simplifies the assembly and maintenance process, prevents flame propagation, and ensures reliable leak detection, addressing the limitations of sintered metal plugs.
Implementation Method 1
The resulting diametral clearance gap also mitigates flame propagation, making this an effective flame arrestor
Implementation Method 2
a through hole, that may be a cylindrical orifice, is in fluid communication with the gap. The cylindrical orifice passes completely through the flame arrestor transverse to and in fluid communication with a gas passage within the flame arrestor screw
Data Source
AI summary
A flame arrestor screw for a solenoid operated gas admission valve. The flame arrestor screw may include a screw body having a first end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.