List of cleaning principles of reverse osmosis system of ultrapure water machine

   Nowadays, the application of ultrapure water machine has been very extensive. It not only meets the application requirements of spectral analysis, chromatographic analysis, cell culture, protein purification, molecular biological pool, etc., but also is widely used in chemistry, biology, pharmacy, medicine, microelectronics, semiconductor, etc. and other fields. The device supports multi-user use, independent pricing, factory and customer secondary passwords, system settings are protected by passwords to prevent unauthorized changes, abnormal operation of the whole system, source water, pre-purified water, ultra-pure water quality and quantity, Online self-diagnosis, warning or automatic system stop operation, intelligent fault judgment of important system components, solenoid valves, booster pumps, UV lamps, sensors, etc., online replacement instructions. In order to make the equipment better use, the daily cleaning of its reverse osmosis system is very important, let's talk about it in detail.

The reverse osmosis system of the ultrapure water machine needs to be cleaned if the following cleaning occurs:

1. Water production decreases under standard pressure.

2. The pressure difference between the influent and concentrated water increases, and the desalination rate increases or decreases greatly.

3. The weight of the membrane element of the reverse osmosis system of the ultrapure water machine increases.

4. The color of the membrane element of the reverse osmosis system of the ultrapure water machine has changed significantly, and there is foreign matter or odor.

The cleaning points of the reverse osmosis system of the ultrapure water machine:

1. Choose a suitable cleaning agent. At the beginning of cleaning, follow the manufacturer's recommendations and use one or more chemicals for cleaning.

2. When preparing the cleaning solution, pure water and deionized water are preferred, followed by soft water.

3. In order to avoid damage to the membrane element, the pH value of the cleaning solution should be between 4 and 10.

4. The scale can be removed with a cleaning solution with a lower pH, and the organic matter can be removed with a cleaning solution with a higher pH. If oily soils are present, remove the oily soils first with a higher pH cleaning fluid. Before adding the next cleaning solution, the previous cleaning solution should be drained and rinsed, and the acid and alkali should not be mixed.

5. If offline cleaning is used, it is recommended to push the membrane element from the water inlet and take it out at the concentrated water outlet when disassembling. When installing after cleaning, attention should be paid to pushing the membrane shell from the inlet end to the concentrated water end. Offline cleaning is more thorough, but it takes a long time.

The above is the cleaning principle of the reverse osmosis system of the ultrapure water machine. Only by correctly grasping the cleaning method can the working performance of the reverse osmosis system of the ultrapure water machine be restored better.