Control requirements for two stage reverse osmosis purified water distribution system
This equipment is made by Wenzhou Haidoneng Environmental Protection Equipment Technology Co., Ltd. It is a one-ton automatic two-stage reverse osmosis water purification equipment, equipped with pasteurization system and purified water distribution system.
1. Purified water distribution system must ensure that the flow rate of purified water distribution: 1.5~3.0m/s. When the system is used at the same time, the pressure of the water point of the multi-effect distilled water machine is greater than 0.2Mpa and the flow rate can not be less than 1.5m/s.The total backwater flow rate of purified water at ordinary times is 1.5m/s.
2. Frequency conversion control of circulating pump: frequency conversion control of the pump is carried out according to the backwater flow, and the pump is stopped at low liquid level and the alarm protection function is also provided.
3, system water temperature control: in the process of pasteurization, the water temperature of the purified water system is automatically controlled, which can realize the automatic control and regulation of the system heat exchanger heating, so that the water temperature is within the set range.
4, the distribution system needs to monitor the backwater temperature, pressure, electrical conductivity, flow and other parameters, and automatic record, and has a trend and history record, with over-limit alarm function.Key parameters (such as conductivity, return water temperature, sterilization temperature, return water flow rate, etc.) can be set.
5, can automatically control the cleaning, sterilization operation.
6, with unqualified water automatic discharge and alarm function.Alarm the abnormal liquid level and compressed air pressure.
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