How to protect large-scale industrial reverse osmosis water purification equipment after the reverse

How to protect large-scale industrial reverse osmosis water purification equipment after the reverse osmosis system is out of service?

by:Ocpuritech     2021-05-10
How to protect large-scale industrial reverse osmosis water purification equipment after the reverse osmosis system is out of service? Author: After large industrial reverse osmosis water purification equipment running for some time, for some reason need outages for maintenance. After the equipment is out of service, proper protection must be carried out to ensure that there is no problem when the equipment is used again. Then how to protect the reverse osmosis system of large-scale industrial reverse osmosis water purification equipment after it is out of service?    There are two types of outage protection for reverse osmosis systems. , One is the short-term outage, and the other is the long-term outage. Different outage periods have different protection methods for the reverse osmosis system.  1. Short-term outage storage. The short-term storage method is suitable for those reverse osmosis membrane systems that are out of service for 5-30 days. At this time, the reverse osmosis membrane element is still installed in the pressure vessel of the reverse osmosis system. The specific steps of the preservation operation are as follows:    1. Feed the water flushing membrane system, and pay attention to completely eliminate the gas from the system. Flushing the membrane system with membrane system water will help prevent pollution.  2. After filling the pressure vessel and related pipelines with water, close the related valves to prevent gas from entering the system.  3. Rinse as above every 5 days.   2. Long-term shutdown storage    The long-term shutdown protection method is suitable for stopping use for more than 30 days, and the reverse osmosis membrane element is still installed in the pressure vessel of the system. The specific steps of preservation are as follows:   1, chemically clean the membrane element.  2. Use the membrane system to produce water to prepare a suitable bactericide, and circulate and flush the membrane device.  3. When the biocide is full of the membrane system, close the valve and pump to keep the biocide in the reverse osmosis membrane system. At this time, confirm that the system is completely full.  4. If the temperature is lower than 27 degrees Celsius, the b-c steps should be performed with a new fungicide every 30 days; if the temperature is lower than 27 degrees Celsius, the fungicide should be renewed every 15 days.  5. Before the membrane system is flushed and put into use, use low-pressure technology to flush the system for 1 hour, and then flush the system with high-pressure water for 5-10 minutes. Regardless of low-pressure flushing or high-pressure flushing, the production water discharge valve of the system should all be opened. Before restoring the system to normal operation, check and confirm that the product water does not contain any fungicides. The above is the introduction of how to protect the reverse osmosis system after the shutdown of large-scale industrial reverse osmosis water purification equipment. The reverse osmosis system is an important component of the water purification equipment, so we must pay attention to the protection of the reverse osmosis system. Improper protection may cause ultra-pure The performance of the reverse osmosis membrane of water equipment is reduced, and there are other reasons that will affect the performance of the reverse osmosis membrane, which are all factors that need to be paid attention to.
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