Then fully open the pressure gauge switch and the main water inlet valve, concentrated water discharge valve and produced water discharge valve. Start the pretreatment equipment and adjust the water supply to be greater than the total water inflow of the equipment. It is also necessary to backwash and clean the sand carbon filter until the effluent becomes clear. Then start the high-pressure pump, slowly open the total water inlet valve of the device, control the total water inlet pressure of the device to be less than 0.5Mpa, and flush for 5 minutes to check whether the high and low pressure pipelines and instruments are normal. Adjust the inlet valve and concentrated water discharge valve to make the inlet pressure reach 1.0 ~ 1.4 MPa.
Finally, the conductivity of the produced water is detected, and when it meets the requirements, the produced water outlet valve is opened and the produced water discharge valve is closed. RO device is debugged into manual single-step Cao group, which can only be switched to automatic state after normal operation, and the operation is automatically controlled by online instrument and PLC. Start the regeneration system again to see if it works normally.