How to maintain small and medium seawater desalination equipment when it is out of service?

How to maintain small and medium seawater desalination equipment when it is out of service? Author: When any device will appear disabled, small and medium sized desalination equipment is, if small and medium sized desalination equipment outage over 30 days belong to long-term outage, membrane elements installed in the pressure vessel is still in reverse osmosis desalination systems If you need to maintain the equipment, how to maintain the small and medium-sized desalination equipment that is out of service?　　1. Cleaning the membrane elements in small and medium-sized seawater desalination equipment systems.　　2. Use reverse osmosis produced water to prepare a sterilization solution, and use the sterilization solution to flush the reverse osmosis seawater desalination system. For the selection of bactericide and the preparation method of bactericidal liquid, please refer to the corresponding technical documents of the membrane company or contact the local representative office of the membrane company for technical advice.　　3. After filling the reverse osmosis seawater desalination system with the sterilizing liquid, close the relevant valves to keep the sterilizing liquid in the system. At this time, confirm that the system is completely full. 4. If the temperature of the small and medium-sized seawater desalination equipment is lower than 27°C, the first two steps should be performed with a new sterilization solution every 30 days. If the system temperature is higher than 27°C, the protection solution should be replaced every 15 days (sterilization). liquid).　　5. Before the reverse osmosis seawater desalination system is put into use again, flush the system with low-pressure feed water for 1 hour, and then flush the system with high-pressure feed water for 5-10 minutes. Regardless of low-pressure flushing or high-pressure flushing, the system's product water discharge valve should be opened. Before restoring the system to normal operation, check and confirm that the product water does not contain any fungicides.