Gas Supply System Valve Control for Noise Reduction
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Solution Overview
Problem
Gas supply systems from high-pressure tanks often experience vibrations and noise transmission due to pressure differences, which existing systems fail to effectively mitigate.
Innovation Solution
A gas supply system with high-pressure tanks of varying longitudinal lengths, where solenoid valves are controlled based on pressure sensor readings to prioritize opening the valve corresponding to the tank with the largest ratio of longitudinal length to short-side width, reducing noise and vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gas is supplied from high-pressure tanks through solenoid valves, then gas supply function is achieved, but vibrations and noise are generated and transmitted to the outside
Solution Approach 1:
The control device determines the opening order of solenoid valves in advance based on tank characteristics (longitudinal length to short-side width ratio) before gas supply begins. This preliminary planning ensures that tanks less likely to amplify vibrations open first, preventing noise generation at the source while maintaining efficient gas supply.
Solution Approach 2:
The patent applies different opening sequences to different high-pressure tanks based on their individual geometric characteristics. Tanks with larger longitudinal length to short-side width ratios are opened first as they are less prone to vibration amplification, while tanks with smaller ratios are opened later. This differentiated approach optimizes noise suppression for each specific tank configuration.
2Speed
If solenoid valves are opened simultaneously, then gas supply speed is improved, but vibrations and noise are amplified
Solution Approach 1:
The control device pre-determines the opening sequence of solenoid valves based on tank characteristics before gas supply begins. This preliminary action allows for optimized noise suppression while maintaining efficient gas supply through controlled sequential opening rather than simultaneous opening.
Solution Approach 2:
The solenoid valves are opened in a controlled sequential manner rather than simultaneously, creating a periodic opening pattern. This staged approach reduces vibration amplification and noise generation while still achieving rapid gas supply by opening multiple valves in quick succession based on their vibration characteristics.
3Speed
If the high-pressure tank with the smallest longitudinal length to short-side width ratio is opened first, then gas supply response is improved, but vibrations and noise are significantly amplified
Solution Approach 1:
Instead of opening the tank with the smallest longitudinal length to short-side width ratio first (which would maximize gas supply response but amplify noise), the patent inverts this approach by opening the tank with the largest ratio first. This reverse strategy prioritizes noise suppression while still achieving effective gas supply through subsequent opening of remaining tanks.
Data Source
AI summary
A gas supply system includes: high-pressure tanks having at least different longitudinal lengths; supply pipes each connected to corresponding one of the high-pressure tanks; a supply-side manifold to which the supply pipes are connected; solenoid valves disposed in the respective supply pipes; a first pressure sensor configured to acquire a pressure related to an internal pressure of the high-pressure tanks; a second pressure sensor configured to acquire a pressure at the supply-side manifold; and a control device that controls the solenoid valve corresponding to the high-pressure tank, among the high-pressure tanks, having the largest ratio of the longitudinal length to a short-side width, to open first when a value obtained by subtracting the pressure detected by the second pressure sensor from the pressure detected by the first pressure sensor is larger than a threshold at the time of activation of the gas supply system.