☆ EDI devices can include all equipment, pipes, valves, control systems and measuring instruments necessary for the system.
☆ EDI membrane components are installed on the combination frame, which shall be equipped with all pipes and joints, as well as all supports, fasteners, clamps and other accessories;
☆ The performance, configuration points and quantity of instruments and meters equipped with EDI system will meet the requirements of safe, stable and reliable operation of the system.
☆ EDI equipment is assembled on a frame by several membrane blocks and supplied in complete sets. The device is equipped with all modules, rectifiers, instruments, controls, pipes, valves, etc. that meet the requirements of effluent quality and quantity.
☆ The design of EDI composite frame shall meet the seismic intensity of the plant site and the expansion requirements of components. EDI device shall be designed to avoid concentrated water pressure higher than fresh water pressure.
☆ EDI concentrated water discharge is equipped with a flow control valve to control the recovery rate of EDI, and the concentrated water returns to the intermediate water tank.
☆ The product water pipe and concentrated water pipe of EDI device are equipped with sampling points. The number and location of sampling can effectively diagnose and determine the operating conditions of the system.
☆ EDI outlet is equipped with online resistance (conductivity) meter and permeate flow meter (with cumulative and instantaneous values and zero return function), and all online instruments are imported from ELFIN; The effluent recovery rate of EDI device in operation is above 90%.
☆ EDI device is equipped with a local instrument panel to display relevant process parameters of EDI on the local panel. The flow meter, pressure gauge, resistivity meter, etc. and valves configured for EDI device can meet the requirements of EDI for automatic control.
☆ Each EDI membrane block is equipped with a completely independent DC power control box, which can ensure that any membrane block will automatically cut off its power supply in case of overheating due to operation, while other modules in the system can still operate normally.
☆ EDI device adopts unit membrane block assembly, which is convenient for maintenance and replacement.