Introduction 乙二醇小循环系统可以在低温冷启动测试过程中为燃料电池提供温度、流量、压力可控的冷却循环回路，使燃料电池能够在低温环境下安全启动，从而评估燃料电池的性能。燃料电池的冷启动性能、稳定性和可靠性。 Application Cooling stack: 低温冷启动时，电堆通常处于较低温度状态，需要快速升温至正常工作温度范围内。乙二醇小循环系统使冷却剂（通常是乙二醇水溶液）循环通过燃料电池堆，以加速其加热并防止过热保护。 Temperature and related parameter control: The ethylene glycol small circulation system can control the temperature (flow rate, pressure) of the ethylene glycol solution entering the stack within the specified temperature range according to user needs, and then perform reliability verification or research and development data verification on the stack at different temperatures. Composition & Control The system components include: liquid storage container, high and low temperature circulation pump, pressure control device, pressure sensor, solenoid valve, temperature sensor, refrigeration heat exchanger, three-way directional valve, SUS316 pipeline system, and other multiple components. Before the low-temperature cold start, the storage container is located in the environmental chamber and is used to pre cool ethylene glycol to a temperature that matches the temperature of the environmental chamber. During the cold start process, the system precisely controls the flow rate, pressure, and temperature of ethylene glycol. When the coolant temperature rises to room temperature (a temperature that can be set), the system will automatically switch to the large circulation system at the end of the fuel cell stack for control.  

JEG系列乙二醇冷却循环器
冷却介质	50%乙二醇水溶液
湿度范围	-40 ℃~room temperature
流量控制范围	0升/分钟~50升/分钟
快速冷却能力（可选功能）	With rapid cooling capability, it can reduce the temperature of the glycol solution in the system from high temperature to the target setting temperature within a specified time, shortening the cold soak time and improving the testing efficiency.