Flow Meters: The “Pulse Monitors” of the New Energy Industry

Behind the explosive growth of the new energy industry, flow meters are becoming indispensable “sensory nerves” in key links such as fuel cell manufacturing, lithium-ion battery production, and photovoltaic silicon material processing.

I. Key Application Scenarios and Technological Breakthroughs

1. Hydrogen energy industrial chain

Hydrogen production stage ：
- Flow control of a 30% KOH solution in an alkaline electrolyzer (with an accuracy of ±1.5%), dependent on... Anti-corrosion electromagnetic flowmeter (Hastelloy electrode + PTFE lining) to prevent electrode corrosion from causing a drop in hydrogen purity (hydrogen below 99.97% is considered scrap).
- PEM electrolysis pure water supply: Flow meter specifically for ultrapure water (Conductivity < 0.1 μS/cm), using capacitive non-contact measurement to ensure ion contamination is close to zero.
Storage and Transportation Link ：
- Liquid hydrogen fueling station: Low-temperature Coriolis flowmeter (Operates in a -253℃ environment), with a mass flow error of ≤ ±0.2%, preventing “underweight” caused by vaporization losses.
- Hydrogen pipeline: Ultrasonic Flowmeter Sound Velocity Tracking Technology Real-time correction of the hydrogen compression factor (Z-value) to ensure fairness in trade handover.

2. Photovoltaics and Wind Power

Polycrystalline silicon deposition ：
- Gas flow control for SiHCl₃ (thermal mass flow meter), with a purity grade of 99.9999%. A flow deviation of just 1% can lead to a 0.8% reduction in conversion efficiency.
Leaf resin impregnation ：
- Two-component epoxy resin-curing agent ratio control (linked with Coriolis flow meters): Mixing ratio error ≤ ±0.1%, preventing delamination of composite materials.