Hydrogen Supply Combination Valve for Stable Pressure and Flow Regulation
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Solution Overview
Problem
Existing hydrogen supply combination valves fail to simultaneously achieve stable output pressure and hydrogen flow regulation, leading to potential safety hazards due to complex pipeline configurations and increased connections.
Innovation Solution
A hydrogen supply combination valve with a two-stage pressure reduction system, comprising a first-stage pressure reduction valve and a second-stage pressure reduction and flow regulation valve, which includes a pressure regulating hydrogen storage flow channel and a controllable sliding piston to stabilize outlet pressure and regulate hydrogen flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If dual pressure reducing valves are used to reduce hydrogen pressure, then the output pressure is stable, but flow regulation cannot be performed while maintaining the same pressure
Solution Approach 1:
The patent combines a pressure reducing valve and a flow regulation valve into a single integrated combination valve body. The pressure reducing valve reduces hydrogen pressure from high pressure to medium pressure, while the flow regulation valve simultaneously controls the flow rate. This merging eliminates the need for separate dual pressure reducing valves and enables both pressure stability and flow regulation functions within one device.
Solution Approach 2:
The combination valve is designed to perform multiple functions: pressure reduction from high to medium pressure, flow rate regulation, and maintaining stable output pressure. The integrated design allows the valve to adapt to different operating conditions by coordinating the pressure reducing mechanism and flow regulation mechanism, providing universal applicability for hydrogen supply systems requiring both pressure control and flow control.
2Adaptability or versatility
If multiple valves and connections are used to achieve pressure reduction and flow regulation, then the functions are comprehensive, but the pipeline complexity increases and safety hazards increase
Solution Approach 1:
The patent integrates the pressure reducing valve and flow regulation valve into a single combination valve body with internally connected flow channels. This eliminates the need for multiple separate valves and external piping connections, significantly reducing pipeline complexity while maintaining comprehensive pressure reduction and flow regulation functions. The internal flow channels provide direct communication between components without requiring external pipe connections.
3Device complexity
If a single pressure reducing valve is used, then the device complexity is low, but the outlet pressure cannot be stabilized while achieving flow regulation
Solution Approach 1:
The combination valve integrates a pressure reducing mechanism with a flow regulation mechanism in one device. The pressure reducing mechanism includes a piston and spring system that reduces pressure from high to medium, while the flow regulation mechanism includes a movable bottom base that controls flow rate. This integration maintains relative structural simplicity compared to multiple separate valves while achieving both pressure stability and flow regulation capabilities.
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 solution stabilizes outlet pressure while allowing for accurate hydrogen flow regulation, reducing pressure fluctuations and ensuring the hydrogen pressure is reduced to the required range for on-board hydrogen fuel cells, thereby enhancing safety and efficiency.
Implementation Method 1
The first-stage pressure reduction valve is used to connect an external hydrogen source and perform first-stage pressure reduction on hydrogen input and input into the first-stage outlet flow channel
Implementation Method 2
The second-stage pressure reduction and flow regulation valve is used to perform second-stage pressure reduction and flow regulation on hydrogen received from the first-stage outlet flow channel
Implementation Method 3
The second-stage pressure reduction and flow regulation valve is used to perform second-stage pressure reduction and flow regulation on hydrogen received from the first-stage outlet flow channel
Implementation Method 4
The second-stage pressure reduction and regulation valve is used to perform second-stage pressure reduction on hydrogen received from the first-stage outlet flow channel
Data Source
AI summary
A hydrogen supply combination valve having flow regulation and pressure stabilization functions includes a first-stage pressure reduction valve, a second-stage pressure reduction and flow regulation valve, and a second-stage pressure reduction and regulation valve. The first-stage pressure reduction valve realizes main throttling and pressure reduction effects, and performs first-stage pressure reduction on high-pressure hydrogen. The second-stage pressure reduction and flow regulation valve can further perform second-stage pressure reduction on the hydrogen after first-stage pressure reduction, and can realize flow regulation. The second-stage pressure reduction and regulation valve can further perform second-stage pressure reduction on the hydrogen after first-stage pressure reduction.