1, regular inspection, timely replacement of the precision filter cartridge, to prevent the cartridge due to installation or quality problems caused by leakage of pure water equipment reverse osmosis membrane particle contamination.
2, pure water equipment mechanical filter regular backwash. Backwash compressed air gas friction, backwash qualified to stand for about 10min and then wash, wash the water qualified before being put into use, do not bring air into the reverse osmosis membrane.
3, high-pressure pump inlet pressure should be at least greater than 0.05MPa, to prevent air or precision filters before the retention of high-pressure pump pump into the reverse osmosis membrane of pure water equipment. In order to ensure long-term, safe and stable operation of pure water equipment, we must do a good job in the management of pure water equipment, timely detection of changes in operating parameters and adjust the operating conditions of the equipment.
4, regular laboratory analysis of water quality of pure water equipment, according to the actual situation and timely adjustment of flocculants, biocides, reducing agents and scale inhibitors dosage.
5, when compared with the initial commissioning state, the standardized pure water equipment reverse osmosis device water production decreased by 10, or under certain conditions of the produced water salinity increased significantly, or the differential pressure increased by 15, the reverse osmosis membrane should be cleaned in a timely manner.
6, out of service of pure water equipment reverse osmosis membrane should be regularly low-pressure flushing, especially in summer, it should be done once per shift flushing. If the out-of-service time is greater than 7 days, should be used 0.5 ~ 1 of sodium bisulfite or 0.5 ~ 1 of formaldehyde solution for pure water equipment reverse osmosis membrane protection. And the pH value and concentration of the protective solution should be tested in a timely manner.
7, should be adjusted in a timely manner the amount of concentrated water to maintain the recovery rate of 75 or so, should not make the concentration of microsoluble salts in concentrated water more than the solubility of the product and scaling, but also should not be a waste of water, that is, it should be to achieve the economic state of operation.
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