Sequence Control Panel

Summary

 

The sequence control panel is primarily used to connect the compressor skid, hydrogen storage tank, and hydrogen dispenser. It supports the direct charging mode of the compressor and can automatically detect actual demand and pressure changes, enabling automatic switching of the corresponding valve operations.

 

Main function

Box-structured design for connecting the compressor skid, hydrogen storage tank, and hydrogen dispenser

Three-stage filling mode, allowing hydrogen storage tanks to be filled at high, medium, and low levels

Pneumatic valve control for sequential operation, enabling remote control and easy configuration

Direct compressor charging capability

Integration with the station control system for centralized management

Electrical components meet national explosion-proof standards

 

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Functions and Roles

Connection and Transmission: The sequence control panel is a key component in hydrogen refueling stations. It primarily connects the compressor, hydrogen storage tank, and hydrogen dispenser, providing a pathway for hydrogen transfer between different equipment. This ensures the smooth operation of the refueling station.

Support for Direct Compression Mode: The control panel supports a direct compression mode, allowing the compressor to directly fill the hydrogen storage tank or dispenser. This enhances efficiency and flexibility in hydrogen refueling.

Automatic Valve Switching: The system automatically detects real-time demand and pressure variations, enabling automatic switching of relevant valves. For example, during refueling, it adjusts valve operations based on the pressure conditions of the storage tank and dispenser, ensuring optimal hydrogen distribution and injection

Working Principle

The sequence control panel typically consists of a main control unit, input/output module, and execution unit:

Main Control Unit: Receives input signals from various sensors, including pressure values from pressure sensors and hydrogen flow data from flow sensors. It processes these signals and sends corresponding control commands based on pre-programmed instructions.

Input/Output Module: Facilitates data exchange with external devices, transmitting sensor-detected signals to the main control unit while delivering control commands from the main control unit to the execution unit and other related equipment.

Execution Unit: Carries out control commands by regulating the opening and closing of valves, ensuring precise control over hydrogen flow.

Application Scenarios

Hydrogen Refueling Stations: The sequence control panel is a critical device for hydrogen storage and refueling, ensuring safe and efficient hydrogen transfer from the compressor to the storage tank and dispenser. It meets the hydrogen refueling needs of fuel cell vehicles and other hydrogen-powered equipment.

Other Hydrogen Energy Applications: The system is also used in industrial settings requiring hydrogen storage and distribution, such as hydrogen production plants and chemical enterprises utilizing hydrogen. It enables structured hydrogen supply and efficient utilization.

Parameter Data

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