The membrane separation technologies used in water treatment equipment mainly include reverse osmosis (RO), ultrafiltration (UF), and electrodialysis (ED), so the application of permeation technology is becoming increasingly widespread. The water treatment equipment factory will explain how to select and maintain the membrane after it is closed.

In recent years, nanofiltration (NF) and microfiltration (MF) have also been applied in various fields of water treatment. Reverse osmosis membranes mainly include cellulose and non cellulose. Among them, cellulose membranes include cellulose acetate membranes; Non cellulose membranes are mainly aromatic polyamide membranes. Reverse osmosis uses a semi permeable membrane, which has a high selective permeability to water but low permeability to most solutes in water. When using reverse osmosis membranes, they should be made into component devices, including vortex type, tube type, plate and frame type, hollow fiber type, and strip type, with membrane thickness ranging from a few micrometers to about 0.1mm.

The water treatment equipment factory explains what maintenance work should be done after the equipment is shut down:

1. Shutdown: Record the operating parameters of the refrigerator before shutting down.

2. Collect oil samples and analyze them in the laboratory designated by Party A.

3. Check or replace the refrigeration oil to the required level.

4. Replace the oil filter, check or replace the pressure sensor, temperature sensor, and water flow switch.

5. Check the refrigeration system, replace the drying filter, and check the refrigerant consumption.

6. Check the pressure reducing valve and pipeline, perform pressure testing, and check for system leaks.

7. Remove the back cover of the condenser and evaporator, check for any abnormalities, and clean the pipes of the condenser and evaporator.

8. Check the oil/condenser pressure converter.

9. Check the electrical wiring connections inside the startup cabinet and control cabinet for firmness, and ensure stable and clean contact of contactors and relays.

10. Check and control the system; Adjust system settings as needed to maintain normal machine operation.

The above is the relevant content explained by the water treatment equipment factory about the selection of membranes and maintenance work after closure. If you want to learn more information, you can consult us, and we will be happy to serve you.

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