Hydrogen Compression Seal Layout for Low Contact Resistance
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Solution Overview
Problem
Existing hydrogen compression technologies face challenges in reducing contact resistance between members due to deformation caused by high-pressure hydrogen gas, leading to potential increases in contact resistance and seal material damage.
Innovation Solution
A compression apparatus with strategically designed seal materials and configurations that surround the outer peripheries of compression unit components, ensuring larger areas for the second seal material to inhibit bending deformations and reduce contact resistance, and incorporating ring materials to prevent seal material protrusion and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-pressure hydrogen is generated through water electrolysis, then hydrogen compression is achieved, but contact resistance between members increases due to deformation
Solution Approach 1:
The patent applies preliminary anti-action by introducing a reactive force through the elastic body (spring) and high-pressure hydrogen gas pressure in the enclosed space to counteract the deformation of separators and members before contact resistance can increase. This pre-compression mechanism maintains stable electrical contact between members during high-pressure hydrogen generation.
Solution Approach 2:
The patent utilizes parameter changes by varying the pressure of hydrogen gas in the enclosed space to dynamically adjust the reactive force on the elastic body, thereby compensating for deformation of members under different operating conditions and maintaining optimal contact resistance.
2Productivity
If high-pressure hydrogen gas is used for compression, then compression efficiency is improved, but seal material damage occurs due to deformation
Solution Approach 1:
The patent implements beforehand cushioning by providing an enclosed space with elastic bodies (springs) that absorb and distribute the stress from high-pressure hydrogen gas before it can damage seal materials. This cushioning mechanism protects the seal structure while maintaining compression efficiency.
Solution Approach 2:
The patent uses the elastic body and enclosed space as intermediaries between the high-pressure hydrogen generation process and the seal materials, transferring and distributing the mechanical stress to prevent direct damage to seal structures.
3Ease of operation
If separators are deformed by high-pressure gas, then hydrogen emission is facilitated, but contact resistance between members increases
Solution Approach 1:
The patent applies anti-weight by using the reactive force from the elastic body and high-pressure hydrogen gas pressure to counterbalance the deformation force acting on separators and members, maintaining their structural integrity and electrical contact while still allowing hydrogen emission function.
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
Effectively reduces contact resistance and minimizes seal material damage, enhancing the durability and sealability of the compression apparatus.
Implementation Method 1
protons taken out from an anode fluid that is supplied to an anode move to a cathode via an electrolyte membrane
Data Source
AI summary
A compression apparatus includes at least one compression unit, a voltage applier, an anode end plate provided on an anode separator located at a first end in a direction of stacking, a cathode end plate provided on a cathode separator located at a second end in the direction of stacking, a first seal material that surrounds an outer periphery of the cathode, and a second seal material that surrounds an outer periphery of a first space in which to store compressed hydrogen, the first space being provided between the cathode end plate and the cathode separator located at the second end. The compression apparatus causes, by using the voltage applier to apply a voltage, protons taken out from an anode fluid that is supplied to the anode to move to the cathode via the electrolyte membrane and produces compressed hydrogen. An area of a region surrounded by the second seal material is larger than an area of a region surrounded by the first seal material.