Hydrogen Station Safety Evaluation for High-Pressure Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current systems lack an objective and accurate method to evaluate the safety and performance of hydrogen stations, particularly in controlling high-pressure hydrogen charging, storage, and release, which poses risks of safety accidents due to rapid pressure and temperature changes in hydrogen storage vessels.
Innovation Solution
A system and method for evaluating the safety of hydrogen stations, which includes performing a charging operation, evaluating charging safety based on preset criteria, and releasing hydrogen if the operation does not meet the criteria, thereby ensuring safe operation and preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-pressure hydrogen charging operation is performed without a separate safety evaluation system, then charging speed and productivity are improved, but safety risk increases due to rapid pressure and temperature changes
Solution Approach 1:
The patent implements preliminary safety evaluation by assessing pressure and temperature conditions before hydrogen charging begins. The system checks whether the pressure vessel is in a safe state to receive hydrogen, preventing charging operations that could lead to safety accidents. This preliminary assessment ensures that only safe charging operations proceed, resolving the contradiction between rapid charging and safety.
Solution Approach 2:
The system continuously monitors pressure and temperature during hydrogen charging operations and provides real-time feedback. When abnormal conditions are detected (such as rapid temperature increase or pressure exceeding limits), the system automatically stops the charging operation. This feedback mechanism enables safe high-speed charging by dynamically adjusting operations based on real-time safety conditions.
2Measurement precision
If multiple repeated charging operations are performed for evaluation, then measurement accuracy is improved, but time consumption increases
Solution Approach 1:
The patent performs preliminary safety assessment using data from a single charging operation rather than requiring multiple repeated tests. By evaluating pressure and temperature changes during one charging cycle and comparing them against predetermined safety thresholds, the system achieves accurate safety evaluation without time-consuming repeated operations. This single-test evaluation method maintains measurement precision while significantly reducing evaluation time.
3Device complexity
If safety evaluation system is not implemented, then device complexity is reduced, but harmful factors increase due to inability to control pressure and temperature
Solution Approach 1:
The safety evaluation system is segmented into distinct functional modules: pressure sensing, temperature sensing, data processing, and control execution. Each module performs a specific function - sensors collect data, the processor evaluates safety based on predetermined criteria, and the controller executes appropriate actions. This segmentation manages system complexity while effectively preventing safety accidents through coordinated operation of specialized components.
Solution Approach 2:
The safety evaluation system acts as an intermediary between the hydrogen charging operation and the pressure vessel. It monitors critical parameters (pressure and temperature) and mediates by automatically stopping charging when safety thresholds are exceeded. This intermediary function prevents direct harmful interactions between high-pressure hydrogen and unsafe vessel conditions, eliminating safety accidents while maintaining manageable system complexity.
Data Source
AI summary
An embodiment of the present invention provides a system for evaluating the safety of a hydrogen station and an evaluation method using the same, which evaluate the performance and safety of the hydrogen station in which hydrogen charging takes place, so that hydrogen charging can be done more safely and smoothly.