What should you pay attention to when changing the operation of ultrapure water equipment?
Ultra-pure water equipment has its own suitable conditions. Only under these conditions will the water from the ultra-pure water equipment be normal and the operation will be more stable, but there are four seasons in a year, and the temperature will change every season. So what are the precautions for changing the operation of ultrapure water equipment in the season? 1. Pay attention to the height: It is required to pay attention to the need to take water on the height. In summer, there may be a drop in the water level line. 2, pay attention to temperature: For the use of ultra-pure water equipment, the focus on the season, the first thing to pay attention to is the concern of temperature, in the winter need to pay attention to avoid the possibility of low temperature caused by the equipment water pipe cracking, but also in the summer To avoid sun exposure, the pipe will also cause some cracking. 3. For the use of ultrapure water equipment, it is necessary to pay attention to the problem of electricity consumption. It is very necessary to pay attention to electricity consumption. It is necessary to pay attention to regular inspection to avoid the corrosion of rainwater caused by ultrapure water equipment, resulting in rust. . 4. When the amount of sodium hypochlorite injected is insufficient to make the free chlorine in the feed water undetectable, there will be sludge on the membrane module of the reverse osmosis device, and the pressure difference of the reverse osmosis device will increase. However, for polyamide membranes, the amount of free chlorine entering the membrane module must be strictly controlled, and exceeding the specified value will result in oxidative decomposition of the membrane. 5. Excessive feed water flow will cause the membrane module to deteriorate in advance, so the feed water flow rate cannot exceed the design standard value. In addition, the flow rate of concentrated water should be avoided as much as possible below the design standard value. When the flow rate of concentrated water is too small, uneven flow in the pressure vessel of the reverse osmosis device and fouling on the membrane module due to excessive concentration may occur. 6. When the reverse osmosis device of the ultrapure water equipment stops, the low pressure feed water is used to replace the water in the reverse osmosis device. This is to prevent the precipitation of silica during shutdown (the temperature of the water drops during the winter). 7, always pay attention to the pressure difference of the security filter. The reason for the sharp rise in pressure differential is mainly the leakage of the turbidity of the security filter. On the contrary, the cause of the sharp drop in the pressure difference is the damage of the precision filter element and the loosening of the fastening screw of the security filter element. The introduction of the precautions about the operation of the ultra-pure water equipment for seasonal changes is here. I hope that it will be helpful to everyone. Pay more attention to the above points when the season changes, so that the equipment can work normally.
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