The Hydrogen Production by Water Electrolysis Testing Platform series is a testing platform designed for hydrogen production electrolysis cells, suitable for performance evaluation of hydrogen production electrolysis cells with a rated power range of 100kW to 1MW.
The electrolysis cell testing system can perform performance testing, sensitivity testing, component selection, life assessment, and theoretical basic research functions of the electrolysis cell according to user operating conditions.
By operating the software in real time, it controls, monitors, and displays various parameters and working states during the operation of the electrolysis cell, including the temperature, pressure, and flow rate of water, voltage, current, cooling water temperature, and the temperature, pressure, dew point, and purity of the produced hydrogen, to achieve the operation of the electrolysis cell under various working conditions.
Main Functions:
l Data Acquisition and Storage: Capable of real-time collection and storage of signals such as water flow, gas flow, temperature, pressure, current, and voltage of the electrolyzer.
l Back Pressure Function: Automatic (manual) back pressure control for hydrogen and oxygen, meeting the control functions of even pressure and differential pressure of anodes and cathodes from atmospheric pressure to high pressure range.
l Gas Drying and Purging Function: Equipped with gas-liquid separation, gas cooling/drying and purging/filtering, and precise measurement of gas flow.
l Automatic Nitrogen Purging Function: In case of fault or shutdown, automatic nitrogen (high pressure/low pressure) purging is used to replace the hydrogen in the hydrogen pipeline.
l Deionized Water Control Function: Precise adjustment of temperature and flow rate, electrolyte recovery, online monitoring of conductivity, and automatic water replenishment.
l Safety Interlocking and Protection Functions: Multi-level safety protection strategies and functions in both software and hardware.
l Performance testing of the electrolyzer (voltage-current characteristic curve), sensitivity testing, component selection, and life assessment functions.
l Equipment Stability and Reliability: Capable of 24/7 unattended fully automatic operation.
System Main Component Module Introduction:
l Deionized Water Supply Module: This module is composed of liquid interfaces, filters, shut-off valves, flow meters, temperature and pressure detection for the liquid supply, water pumps, etc. It ensures precise control of liquid flow, guarantees liquid supply, controls the temperature and flow at the liquid inlet, and can automatically replenish water.
l Back Pressure Control Module: This module is composed of automatic back pressure valves for anodes and cathodes (manual back pressure valves), gas-liquid separators, and pressure detection at the gas outlet. The function of this module is to precisely control the pressure at the outlet of the reaction gas through automatic back pressure valves, meeting the control functions of even pressure and differential pressure of anodes and cathodes from atmospheric pressure to medium pressure range.
l Nitrogen Purging Module: Nitrogen is used as a protective gas. In normal or fault parking, the system will default to nitrogen purging (high pressure/low pressure), replacing the hydrogen in the electrolyzer anodes and cathodes and the pipeline, playing a role in protection and safety.
l Gas Drying and Purging Module: The module consists of a temperature swing adsorption unit, temperature sensors, pressure sensors, point sensors, and flow meters. It uses temperature swing adsorption to dry the produced hydrogen and oxygen, and to monitor the flow, point, hydrogen in oxygen, and oxygen in hydrogen in real time.
l DC Power Supply Module: This module is composed of a DC power supply, data communication acquisition module, load management software, cooling water pipeline, and throttling valve. Its main function is to provide loading mode and load control for the operation of the PEM (AEM) electrolyzer. For ease of operation and program control, the load design of this testing platform is directly controlled by the upper computer. By setting the load operation mode through the software interface, such as constant current, constant voltage, constant power, etc., the load control program supports continuous operation of the PEM (AEM) electrolyzer. After the user inputs the operating conditions for the PEM (AEM) electrolyzer, the control program will automatically control the DC power supply to operate according to the user's requirements.
l Data Acquisition and Control Module: The module consists of a computer, acquisition and control core components, sensor transmitter modules, flow control modules, and actuating organizations. In the design of the testing platform, all sensor transmitters are selected from internationally renowned brands. A signal conditioning module is added between the sensor transmitters and the acquisition system. The sensor modules are powered by a power supply with a small ripple coefficient, and all sensors use a two-wire current signal output to improve the stability of the collected signal. In conjunction with PLC, it can perform online detection and precise control of parameters such as temperature and pressure during the operation of the PEM (AEM) electrolyzer.
l Safety Control and Interlocking Module: The testing platform has multiple safety considerations in its design, including setting load switches, emergency stop buttons, hydrogen alarms, software and hardware safety interlocks, nitrogen purging protection, and automatic alarm parking.
Model | 500W | 10kW | 50kW | 100kW | 200kW | 500kW | 1MW |
Water Flow Rate | 0.01-0.3L/min | 1-10L /min | 6-50L/min | 10-100L/min | 20-200L/min | 50-500L/min | 10-100Nm3/h |
Electrical Conductivity | 0.05-20us/cm | ||||||
Temperature Control | R.T+10℃℃-90℃ | ||||||
Temperature Control Accuracy Oxygen Flow Rate | ±1℃ (Steady State) | ||||||
Hydrogen Flow Rate | 2SLPMM | 2Nm³/h | 10N m³/h | 20N m³/h | 40N m³/h | 100N m³/h | 200N m³/h |
Oxygen Flow Rate | 1SLPMM | 1Nm³/h | 5N m³/h | 10N m³/h | 20N m³/h | 50N m³/h | 100N m³/h |
Hydrogen Treatment | Condensation, Drying | ||||||
Oxygen Treatment Method | Customer Option | ||||||
Hydrogen Flow Rate Detection | Equipped | ||||||
Oxygen Flow Rate Detection | Customer Option | ||||||
Hydrogen in Oxygen Detection | Customer Option | 0-5%VOL ,+1%FS | |||||
Oxygen in Hydrogen Detection | |||||||
Back Pressure Method | Automatic/Manual | ||||||
Back Pressure Level | 3MPa/2bar | 4MPa | 4MPa | 4MPa | 4MPa | 4MPa | 4MPa |
Inspection Range | —— | -4v~4v | -4v~4v | -4v~4v | -4v~4v | -4v~4v | -4v~4v |
Inspection Routes | —— | 40 | 40/Single module, number of blocks is optional. | ||||
Current | 200A | User-specified | |||||
Voltage | 10V | User-specified |