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ALK Electrolyzer Test Bench

The GR-WETS-ALK-S10K series electrolytic water hydrogen production tank testing equipment is designed to provide an accurate and reliable testing platform for electrolytic water hydrogen production tanks. It can be used for testing the performance, functionality, and coordination of ALK electrolytic cells, meeting the testing needs of electrolytic cells. The system consists of the tested electrolytic cell, gas-liquid separator, heating tank, water replenishment pump, cooling system, control power supply, and more. All subsystems are integrated into a single testing system that meets hydrogen safety system requirements, equipped with corresponding hydrogen concentration monitoring devices, and features appropriate safety interlock functions.

Classification:

Water Electrolysis Hydrogen Test System

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Product Details

ALK Electrolyzer Test Bench Product Power Level Overview

Serial Number	Number	Name	Model
1	1	500W ALK Electrolyzer Test Bench	GR-WETS-ALK-SC500
2		1kW ALK Electrolyzer Test Bench	GR-WETS-ALK-S1K
3		5kW ALK Electrolyzer Test Bench	GR-WETS-ALK-S5K
4		25kW ALK Electrolyzer Test Bench	GR-WETS-ALK-S25K
5		100kW ALK Electrolyzer Test Bench	GR-WETS-ALK-S100K
6		500kW ALK Electrolyzer Test Bench	GR-WETS-ALK-S500K
7		1MW ALK Electrolyzer Test Bench	GR-WETS-ALK-S1M
8		5MW ALK Electrolyzer Test Bench	GR-WETS-ALK-S5M
9	2 (Multi-channel)	4-channel 100W ALK Electrolyzer Test Bench (Fully Independent)	GR-WETS-ALK-SC100X4D
10	2 (Multi-channel)	4-channel 100W ALK Electrolyzer Test Bench (Fully Shared)	GR-WETS-ALK-SC100X4G

ALK Electrolyzer Test Bench Product Overview

1.1 Product Images

Serial Number	Type	Image	Image
1	ALK Electrolyzer Test Bench
2	ALK Electrolyzer Test Bench
3	Multi-channel ALK Electrolyzer Test Bench

1.2 Product Overview

The GR-WETS-ALK series electrolyzer test bench is designed to provide an accurate and reliable testing platform for electrolyzers. This test bench has undergone multiple upgrades and optimizations based on the performance of existing products in the industry. It consists of an electrolyte circulation system, nitrogen purging unit, gas-liquid separation unit, gas analysis pretreatment unit, PLC acquisition and control unit, human-machine operation unit, and safety monitoring unit, and uses the company's self-developed system testing software to meet the testing needs for polarization curves, hydrogen production energy consumption efficiency, hydrogen quality testing, and product lifespan.

1.3 Product Functions

Nitrogen Purging: Automatic nitrogen purging function before and after testing, and during equipment failure/shutdown.

Electrolyte Control: Wide range, high precision, and stable control of circulating electrolyte flow to meet various testing needs; includes alkaline solution concentration monitoring; features heating, liquid level monitoring, and automatic water replenishment for circulating electrolyte.

Gas-Water Separation: Efficient gas-water separation design, including gas-liquid separation, washing, condensation dehumidification, and drying devices.

Pressure Control: Automatic back pressure control for anode/cathode.

Flow Detection: High precision online measurement of gas flow.

Data Acquisition and Storage: Real-time acquisition and monitoring of data such as current, voltage, temperature, pressure, and circulating electrolyte flow.

Safety Interlock and Protection: Dual safety protection strategy with software settings for three-level alarm parameters.

Performance Testing: Testing functions for electrolyzer polarization curve, small chamber consistency, durability, sensitivity, etc.

Stability and Reliability: 24-hour unattended operation capability.

1.4 Product Advantages

High control stability: Steady-state temperature control ±1℃; pressure control ±0.5%F.S.; electrolyte flow control ±1%F.S.

High measurement accuracy: Temperature ±0.5℃; pressure ±0.5%F.S.; circulating electrolyte flow ±1%F.S.; gas flow ±0.8%RD+0.2%F.S.

High integration level: Highly integrated equipment, compact layout, aesthetically pleasing design, convenient operation, and complete interface functions.

Strong data processing capability: Able to automatically collect, analyze, and process data, generating detailed test results, including charts and data lists.

High equipment safety: Complete safety protection and interlock functions, with three-level safety alarm limits settable via the upper computer.

Strong equipment reliability: Equipment has various automatic condition testing functions, capable of 7×24 hours unattended operation.

Multiple functional expansion capabilities: Can integrate with electrochemical workstations for electrochemical testing; can expand to achieve electrolyzer polarization loss decomposition, EIS data analysis functions, etc.

1.5 Product Parameters

1.5.1 ALK Electrolyzer Test Bench

Model		GR-WETS-ALK-SC500	GR-WETS-ALK-S1K	GR-WETS-ALK-S5K	GR-WETS-ALK-S25K	GR-WETS-ALK-S100K	GR-WETS-ALK-S500K	GR-WETS-ALK-S1M	GR-WETS-ALK-S5M
Rated Power		500W	1kW	5kW	25kW	100kW	500kW	1MW	5MW
Electrolyzer Type		ALK Electrolyzer
System Module	Technical Indicators	Specific Parameters
Electrolyte Circulation Module	Medium	30% KOH Solution
	Circulation Mode	Dual-side Supply
	Alkaline Solution Concentration	Equipped with alkaline solution concentration detection function; detection range: 0~40%; accuracy: ±1%F.S.
	Alkaline Solution Flow	1L/min	2L/min	10L/min	50L/min	160L/min	560L/min	800L/min	4000L/min
	Temperature Control	RT~90℃; steady-state temperature control accuracy: ±1℃; heating rate: 1~4℃/min
	Automatic Water Replenishment	Equipped with
Hydrogen/Oxygen System Module	Hydrogen Flow	2.5SLPM	5SLPM	25SLPM	125SLPM	500SLPM	2500SLPM	5000SLPM	25000SLPM
	Back Pressure Range	0~1.6MPa; control accuracy: ±1%F.S.; equipped with pressure difference and liquid level difference adjustment functions.
	Dehydration function	Equipped with gas-liquid separation, washing, condensation dehumidification, drying
Nitrogen purging	Purging function	Equipped with automatic/manual nitrogen purging function before/after testing, customizable purging time
Gas analysis	Hydrogen in oxygen	Range: 0~4% VOL; Accuracy: ±2% F.S. (calibration available in the range of 0~5% VOL)
Power module	Operating mode	Constant pressure, constant current, constant power, programmable automatic operation
	Voltage	Custom services provided based on actual needs
	Current	Custom services provided based on actual needs
Voltage inspection	Voltage inspection	Equipped with individual voltage inspection function; Number of channels: customizable; Range: ±3V; Accuracy: ±1mV; Alarm limit can be set
Whole system	Controller	PLC
	Upper computer	Optional C# or Labview
	Communication interface	LAN
	Power supply	AC220V/50Hz or AC380V/50Hz
	Overall structure	Bench type			Cabinet/container type/skid-mounted type
Optional functions		Oxygen flow detection; Oxygen detection in hydrogen; Dew point detection; Electrochemical testing; Polarization loss decomposition and EIS data analysis functions

Note: Upgrades or downgrades can be made as required.

1.5.2 Multi-channel ALK electrolyzer test bench

Model		GR-WETS-ALK-SC100X4D	GR-WETS-ALK-SC100X4G
Single channel rated power		100W
Electrolyzer Type		ALK Electrolyzer
Channel form		4 independent channels	4 shared channels
System Module	Technical Indicators	Specific Parameters
Electrolyte Circulation Module	Medium	30% KOH Solution
	Circulation Mode	Dual-side liquid supply, 4 independent channels
	Alkaline Solution Concentration	All 4 channels equipped with alkali liquid concentration detection function Detection range: 0~40%; Accuracy: ±1% F.S.	Shared 1 set of alkali liquid concentration detection function Detection range: 0~40%; Accuracy ±1% F.S.
	Alkaline Solution Flow	0.05~0.5L/min
	Temperature Control	RT~90℃; steady-state temperature control accuracy: ±1℃; heating rate: 1~4℃/min
	Automatic Water Replenishment	Equipped with
Hydrogen/Oxygen System Module	Hydrogen Flow	Single channel 0~0.5SLPM	0~2SLPM
	Back Pressure Range	4 independent channel back pressure, 0~1.6MPa	4 shared channel back pressure, maximum 0~1.6MPa
	Dehydration function	All 4 channels equipped with gas-liquid separation, washing, condensation dehumidification, drying	Shared 1 set of gas-liquid separation, washing, condensation dehumidification, drying
Nitrogen purging	Purging function	Equipped with automatic/manual nitrogen purging function before/after testing, customizable purging time
Gas analysis	Hydrogen in oxygen	Range: 0~4% VOL; Accuracy: ±2% F.S. (calibration available in the range of 0~5% VOL)
Single channel power module	Operating mode	Constant pressure, constant current, constant power, programmable automatic operation
	Voltage	0~20V
	Current	0~100A
Voltage inspection	Voltage inspection	Equipped with individual voltage inspection function; Number of channels: customizable; Range: ±3V; Accuracy: ±1mV; Alarm limit can be set
Whole system	Controller	PLC
	Upper computer	Optional C# or Labview
	Communication interface	LAN
	Power supply	AC220V/50Hz
	Overall structure	Bench type
Optional functions		Independent detection/switching inspection of oxygen flow; Switching inspection of hydrogen in oxygen; Independent detection/switching inspection of oxygen in hydrogen; Dew point detection; Electrochemical testing; Polarization loss decomposition and EIS data analysis functions

Note: Upgrades or downgrades can be made as required.

Key words:

Fuel Cell Stack Test Equipment丨Fuel Cell丨Control

PEM Electrolyzer Test Bench

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Production Base: 6 Zone Graphene Science and Technology Industrial Park, No.8 Lanxiang Road, Wujin Economic Development District,Jiangsu Province,Changzhou City

Tel:86-0519-88852198

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