What daily maintenance needs to be paid attention to in medical purified water equipment?

medical purified water equipment needs regular care during daily operation including regular flushing of medical purified water equipment and daily operation and maintenanceThe following is Nanjing Tianshui for everyone to share the medical purified water equipment day long maintenance:1, low-pressure flushingregularly on the RO device for large flow, low pressure, low ph value of flushing is conducive to peeling off the dirt attached to the surface of the RO membrane, maintain membrane performance, or when the incoming water sdi suddenly rose more than 5.5, should carry out low-pressure flushing, waiting for the sdi value to be adjusted before booting2, stop-service protectiondue to fluctuations in production, RO devices inevitably have to be frequently discontinued, RO short-term or long-term deactivation must be protective measures, inappropriate treatment will lead to membrane performance degradation and irresusshort-term preservation is suitable for the shutdown of 15d or less RO system, can be used per 1 to 3d low-pressure flushing method to protect the RO devicePractice has found that when the water temperature is more than 20 degrees C, the water storage in the RO device will smell and deteriorate, there are a large number of bacteria breedingTherefore, it is recommended that the water temperature is higher than 20 degrees C, every 2d or 1d low-pressure flushing, water temperature below 20 degrees C, can be flushed every 3d low pressure once, after each flushing need to close the reverse osmosis device on all import and export valveslong-term deactivation protection is applicable to systems that are more than 15d suspended, when the protective fluid (microbicide) must be filled with an anti-osmosis device for protectionCommon fungicide formulations (composite membranes) are 10% formaldehyde (mass fraction), isopyride 20mg/l, sodium sulphate 1% (mass score)the previous commonly used fungicide formula is formaldehyde, because it has cheap, easy-to-get advantages, but recently out of environmental protection and human health considerations, isocyanone gradually attention, but its application in reverse osmosis protection has not been reported3, chemical cleaningunder normal operating conditions, reverse osmosis membrane may also be inorganic scale, colloidal, microorganisms, metal oxides and other pollution, these substances deposited on the membrane surface will cause the reverse osmosis device output decline or desalinated rate decreased, pressure difference increased, and even cause irreparable damage to the membrane, therefore, in order to restore good water permeability and desalting properties, the film needs to be chemically cleanedgenerally 3 to 12 months cleaning, if you have to clean once a month, this indicates that the RO should be improved pre-processing system, adjust the operating parameters of ROIf you need to clean once in 1 to 3 months, you need to improve the operation level of the equipment, whether to improve the pre-processing system is difficult to judge