How maintenance should be maintained during the decommissioning of the reverse osmosis equipment system.

Once the reverse osmosis system is running, it should be as stable as possible, and every start-up and stop of the system involves changes in flow and pressure, which cause mechanical stress on membrane componentstherefore, if necessary, to minimize the system start-stop frequency, normal start and stop should also be smoothSo when reverse osmosis water treatment equipment needs to be used normally for a period of time, how should it be maintained and maintained? The length of the outage varies, and the maintenance measures are different, the normal shutdown step of the system to open the water discharge valve, open the high-pressure pump bypass control valve, reduce the system's inlet flow, while slowly opening the thick water control valve, reduce the pressure to about 30?40psi, close the corresponding drug adder, maintain this low-pressure flushing until the thick hydropower guide and into the water and electricity guide consistent, low-pressure flushing 5?10min, the system shut downtwo, the short-term stop can be carried out in accordance with the normal shutdown procedure, but must be low-pressure flushing, and in order to prevent the growth of bacteria, need to be flushed every 24 hours3Stop operation 2-25 days 1Ensure that the pressure vessel is filled with pure water produced by R0 and close all inlet, thick water valves and water-producing valves to prevent drying of membrane elements and the growth of microorganisms; 2When the temperature is greater than 20 degrees C, repeated flushing every 12 hours; For surface water or the presence of high microbial contamination of water, must be formulated with R0 water preparation containing 1.0% sodium sulphate solution to rinse the reverse osmosis system, if the same solution soaked membrane elements, the effect is better, repeated flushing cycle will be correspondingly extended;4, long-term suspension of 25 days 1Refer to the normal shutdown procedure, and use the product water low pressure flushing system, while a chemical cleaning and sterilization treatment, after cleaning with R0 water low-pressure flushing system, until the thick hydropower guide and into the water guide consistent; With reverse osmosis pure water preparation containing 1.0% sodium sulphate protection liquid, relying on chemical cleaning system to recycle the membrane elements, eliminate the air in the pressure vessel, the membrane elements are completely soaked in the protective liquid, prevent the membrane elements from drying, close all incoming valves, thick water valves and water-producing valves, prevent air from entering the protection fluid failure; The pH of the weekly inspection protection fluid, when the pH is less than 3, need to replace the protective fluid in time, 4During the system shutdown, the temperature is kept between 5 degrees C?45 degrees C, the low temperature is conducive to the preservation of membrane elements, but at the same time should prevent the system ice freezing.