I. Process selection for pure water equipment:

According to the water quality requirements of customers, appropriate water production processes can be selected.

If the water quality requirement is less than 10us and the pure water flow rate is greater than 3T, it is necessary to choose a reverse osmosis pure water equipment.At this time, if an ion exchange pure water equipment is selected, the cost of use will be too high.

If the water quality requirement is less than 5us, regardless of the flow rate, a two-stage reverse osmosis process is required.

If the PH value is required to be high, it is recommended not to use ion exchange, as the PH value will change with the increase of use time.Reverse osmosis does not have this problem.

II.Precautions for selecting pure water equipment after determining the process

1. If you choose the reverse osmosis process or two-stage reverse osmosis process, you should pay attention to the configuration of the pre-treatment and the selection of the reverse osmosis membrane.The flow rate of the pre-treatment needs to be twice as high as the flow rate of the pure water output, and the membrane element needs to be imported, such as Dow membrane.

If the ion exchange process is selected, it is necessary to choose good resins and a resin collection device to prevent leakage of the regenerated resins.

pure water equipment

Three, the main characteristics of two kinds of water production technology:

1. Reverse osmosis mainly uses physical methods to produce pure water.To put it simply, it is just a filtering device.The pore size of the reverse osmosis membrane allows only water molecules, while other impurities are isolated on the other side of the membrane and discharged with the concentrated water.

2. Ion exchange mainly uses chemical methods to produce pure water.Resins react with various ions in water, and when the resins become saturated, they need to be cleaned with hydrochloric acid and caustic soda.This is cumbersome to use.

Among the two processes, reverse osmosis is the most advanced water production process, which is simple to operate and has stable water quality.It is our first choice.

Fourth, the main process flow of pure water equipment:

1. Process flow of reverse osmosis pure water equipment

Tap water tank--lift pump--multi-media filtration--active carbon filtration--soft water filtration--reverse osmosis host--pure water tank

2. Two-stage reverse osmosis pure water equipment process:

Tap water tank--lift pump--multi-media filtration--active carbon filtration--soft water filtration--primary reverse osmosis host--intermediate water tank--high pressure pump--secondary reverse osmosis host--pure water tank

3. Process of ion exchange pure water equipment:

Tap water tank--lift pump--multi-media filtration--active carbon filtration--cation bed--anion bed--pure water tank

The above process is not completely fixed, and it also needs to be flexibly changed according to the quality of the water source.