How to clean and maintain the food industry pure water equipment system when it is shut down-Ocpurit

How to clean and maintain the food industry pure water equipment system when it is shut down?

by:Ocpuritech     2021-05-07
How to cleaning and maintenance in the food industry pure water equipment system downtime author of the article:? In the food industry pure water equipment, pure water equipment downtime if the food industry, it is necessary to reverse osmosis systems food industry pure water equipment is cleaned, washed The operation is the impurities and scale inhibitors on the side of the concentrated water. The following editor will introduce how to flush the pure water equipment of the food industry when it is shut down. You can use qualified pretreatment to rinse with water. The advantage of this method is that it eliminates the need for flushing pumps, security filters, etc., and does not waste fresh water or demineralized water, and is easy to program control and relatively simple. The only way of flushing is to stop the high-pressure pump and the antiscalant dosing pump, and the reverse osmosis can be flushed by the pressure of the incoming water from the pretreatment. The disadvantage is that if the reverse osmosis needs to be shut down due to unqualified pretreatment water, such as SDI, turbidity, temperature, pH, ORP, etc., then the reverse osmosis will not be able to be flushed, and the non-existent in the reverse osmosis device Qualified water cannot be drained in time; sometimes, reverse osmosis needs to be shut down for a few days, and the pretreatment system must be started for daily flushing, and the water can be flushed until the water is qualified, which is troublesome and wastes electricity. The flushing pump is specially designed to flush with demineralized water. This has the advantage that the flushing system is independent, avoiding the inability to flush due to unqualified pre-treated water, and the filtration system before reverse osmosis does not need to be started. The disadvantage is precisely because the flushing system is independent. There are dead corners and dead water pipe sections in the interface with the reverse osmosis system and the flushing pipeline. These parts are prone to microorganisms. When the system is shut down for flushing, these microorganisms will be flushed into the reverse osmosis device. In the membrane, it may pollute the membrane, increase equipment investment (washing pump, security filter, electric valve, etc.), and waste a lot of desalinated water. In addition, after the system shuts down, it must be flushed immediately, and it is required that the flushing procedure should also be included in the reverse osmosis operation control. In this way, there is a problem of the connection between the start-up of the flushing system and the reverse osmosis system. The outlet of the high-pressure pump generally has an electric slow-opening door. When the system is stopped, the electric slow-opening door takes a period of time to be completely closed before starting the flushing system, so that the time connection is not tight. On the other hand, the flushing pump outlet should also be installed. Set the electric slow opening door to prevent the impact of the reverse osmosis membrane after the flushing pump is started. The two electric doors are closed and opened, and the total time is about one minute. Although the time is very short, it may also cause concentrated scale inhibitors. Pollution to the reverse osmosis membrane. That's it for the introduction of how to flush the food industry pure water equipment when it is shut down. In the actual working process of the food industry pure water equipment, the reverse osmosis shutdown caused by the unqualified pretreatment water can be avoided, for example, it can be more conservative Set the alarm points for SDI, turbidity, temperature, pH, ORP, etc., and eliminate the unqualified factors within the buffer time before the real unqualified water enters the reverse osmosis. The reverse osmosis is unnecessary to stop; moreover, even if it needs to be stopped As long as measures are taken in time, the flushing process can be ended before the truly unqualified water enters the reverse osmosis.
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