Pressurized Gas Tank Head Leak Detection via Segmented Sealing
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Solution Overview
Problem
Existing methods for detecting leaks in pressurized gas tank heads with integrated components are intrusive and cannot be used during operation, making it difficult to ensure the tightness of all components, especially when the gas is hydrogen and the tank is in use.
Innovation Solution
A pressurized gas tank head design with integrated components featuring upstream and downstream sealing devices, a common space connected to intermediate spaces between these devices, and a detection device that measures gas presence, allowing for leak detection during operation without needing to check each component separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional leak detection methods (wrapping with film or using bell) are used, then the tightness of all components can be checked, but the detection cannot be performed during operation and requires intrusive procedures
Solution Approach 1:
The detection system is segmented by creating separate detection zones for each component's intermediate space, allowing individual component monitoring while maintaining overall system operation. Each component's sealing integrity is independently assessed through its dedicated tapping pipe and detection path.
Solution Approach 2:
A common space acts as an intermediary chamber that collects gas from multiple intermediate spaces through tapping pipes. This intermediary structure enables centralized detection of leaks from various components without requiring direct access to each component during operation.
2Reliability
If each component is checked separately for leaks, then the tightness of individual members can be verified, but the system becomes complex and time-consuming
Solution Approach 1:
Multiple intermediate spaces from different components are merged into a single common detection space through tapping pipes. This consolidation allows the detection system to monitor all components simultaneously through one unified detection device, reducing overall system complexity while maintaining comprehensive coverage.
Solution Approach 2:
The common space serves multiple functions: it acts as a collection chamber for gas from various components, a distribution point for detection, and a centralized monitoring location. This multi-functionality eliminates the need for separate detection systems for each component.
3Reliability
If traditional detection methods are used, then leak detection is possible, but it cannot be performed during gas distribution operation
Solution Approach 1:
The detection system operates continuously during gas distribution by maintaining constant monitoring of the common space and intermediate spaces. The tapping pipes continuously sample gas from component intermediate spaces, enabling uninterrupted leak detection throughout the operational cycle without requiring shutdowns or interruptions.
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
Ensures the security of the surrounding atmosphere by detecting leaks in real-time, preventing gas escape into confined spaces like aircraft or underground construction machines, and evacuating any leakage to a secure zone if detected.
Implementation Method 1
an orifice communicates the common space with a device for measuring the presence of the gas
Data Source
AI summary
The invention relates to a head (2) for a tank (1) used to store pressurised gas, comprising, in an integrated manner: at least two components (131, 132) for treating, distributing and/or shutting off the gas; an upstream connector (20) suitable for being removably attached in a boss (4) of the tank (1); and downstream outlet pipes (211, 212) suitable for connecting the head (2) to any system using said gas by means of the aforementioned components (131, 132). According to the invention, each component (131, 132) comprises at least two sealing devices (141, 142) defining an intermediate space therebetween, and at least one pipe (12), called tapping pipe, connects each of the intermediate spaces and a common space (8) into which ail the tapping pipes (12) emerge, with an orifice (15) providing a connection between the common space (8) and a gas-detection device (16).