Application of Shanghai Fengshen Fluid Controllers in Liquid Cooling Energy Storage
Shanghai Fengshen fluid controllers are extensively used in liquid cooling thermal management systems for energy storage. As the energy storage industry evolves toward larger capacity and higher energy density, liquid cooling has become the mainstream thermal management solution for energy storage systems. Fengshen products are suitable for core segments including refrigeration cycles and coolant circulation in liquid cooling energy storage thermal management units. By precisely controlling fluid pressure, flow, and temperature, they contribute to the safe, efficient, and long-lasting operation of energy storage systems.
Contact Us
Core products and their applications are as follows:
1. Pressure Controllers (P/PC/PX/PS/PED Series)
As core protective components in the refrigeration systems of liquid cooling energy storage thermal management units, pressure controllers monitor compressor suction and discharge pressures to ensure the safe operation of liquid cooling units. Core applications:
• High-pressure protection: Monitor the high discharge pressure of liquid cooling unit compressors. When the pressure exceeds the safe set range, the power to the control circuit is automatically cut off to prevent compressor overload and damage, suitable for both high and low pressure operating conditions of energy storage thermal management units.
• Low-pressure protection: Monitor the compressor suction pressure. When the suction pressure falls too low, the system automatically shuts down to prevent equipment failures caused by refrigerant leakage or system blockage.
• The products have obtained CE, RoHS, and other certifications. The PX series features mechanical durability of 300,000 cycles and repeatability accuracy of ≤5%, satisfying the long-term operational demands of energy storage thermal management units.
2. Differential Pressure Controllers (FSD Series)
Suitable for compressor oil circuit protection and coolant pipeline differential pressure monitoring in liquid cooling energy storage thermal management units. Core applications:
• Compressor oil pressure protection: The FSD series differential pressure controllers monitor compressor lubricant oil pressure differential. When the oil pressure is too low, a delayed shutdown is triggered to prevent compressor wear due to insufficient lubrication, suitable for energy storage thermal management operating conditions.
• Coolant pipeline differential pressure control: Monitor the differential pressure in coolant circulation pipelines to prevent insufficient flow caused by filter blockage or pipeline anomalies, ensuring heat exchange efficiency.
3. Flow Switches
Applied in the coolant circulation loops of liquid cooling energy storage thermal management systems. Core functions:
• Coolant flow monitoring: Monitor the circulation flow rate of coolant (such as water-glycol mixtures). When the flow deviates from the set value, a signal is triggered to prevent abnormal conditions such as coolant pump dry running or insufficient heat exchange, ensuring the heat dissipation safety of battery modules.
• System interlock protection: Interlocked with the liquid cooling unit control system. When coolant flow is abnormal, alarms are triggered or the system shuts down promptly to prevent battery pack temperature from exceeding limits due to insufficient heat dissipation.
4. Solenoid Valves (SV, NSV Series)
Suitable for refrigerant pipeline on/off control in liquid cooling energy storage thermal management units. Core applications:
• Refrigerant on/off control: The SV series (diaphragm type) features fully encapsulated coils, offering waterproofing and vibration resistance. The NSV series (piston type) features long service life and zero pressure differential opening capability. Both series work with liquid cooling thermal management units to realize refrigeration cycle start/stop control.
• Liquid slugging protection: Installed between the condenser outlet and the expansion valve. When the liquid cooling unit shuts down, the valve automatically closes to prevent liquid refrigerant from flowing back into the compressor and causing liquid slugging.
5. Condensing Pressure Regulating Valves & Temperature/Water Flow Regulating Valves
Suitable for precise regulation of pressure and temperature in liquid cooling energy storage thermal management systems, ensuring system efficiency and stability:
• Condensing pressure regulating valves: Regulate the condensing pressure of liquid cooling thermal management units. Since energy storage containers are mostly deployed in outdoor environments where ambient temperature varies greatly, condensing pressure regulating valves can adapt to different ambient temperatures, preventing excessively low or high condensing pressure from affecting refrigeration efficiency.
• Temperature/water flow regulating valves: Precisely control the temperature and water flow rate of the coolant in liquid cooling thermal management units, improving heat exchange efficiency and stably maintaining the battery pack temperature within the optimal operating range of 15–35°C, contributing to the safe operation of energy storage systems.
6. Thermostatic Expansion Valves & Liquid Injection Valves
As core components of the refrigeration cycles in liquid cooling energy storage thermal management units, they regulate refrigerant flow and provide precise temperature control. Core applications:
• Thermostatic expansion valves: Covering multiple refrigerants, they are suitable for the varying cooling capacity requirements of liquid cooling energy storage thermal management units, regulating refrigerant supply through superheat to achieve precise temperature control.
• Liquid injection valves (WTVAB2 series): When the compressor discharge temperature of liquid cooling energy storage thermal management units is too high, an appropriate amount of liquid refrigerant is injected into the compressor suction end to reduce the discharge temperature, preventing compressor overheating and damage, and ensuring reliable operation of the liquid cooling thermal management unit in high-temperature environments.
7. Overall Application Advantages and Scenario Coverage
Fengshen products are certified to ISO 9001, CE, CQC, RoHS, and other standards, with some products also holding UL certification, ensuring reliable quality.
Leveraging over twenty years of product development experience in the fluid control field, the products feature waterproofing, vibration resistance, high and low temperature tolerance, and long service life, making them suitable for the operating conditions of energy storage liquid cooling thermal management systems.
The products cover various liquid cooling application scenarios including grid-side large-scale energy storage stations, commercial and industrial energy storage, and distributed energy storage. From refrigeration cycle control of liquid cooling units to coolant circulation protection, they provide core automatic control component support, contributing to the efficient, safe, and stable operation of liquid cooling energy storage thermal management systems.
Your information is being protected. 