Desalination plants around the world generally use polyamide membranes to filter salt from seawater. Polyamide film is an artificially synthesized polymer covered with small pores that allow water molecules to be squeezed out instead of sodium ions. Currently, designed and produced by Shanghai Yidong ElectricDemineralized water filtration electric control systemSuccessfully exported to Laos.

Process of desalination water filtration system

1. Ion exchange desalination water filtration

Raw water → raw water booster pump → multi-media filter → activated carbon filter → water softener → precision filter → cation resin filter bed → anion resin filter bed → cation anion resin mixed bed → microporous filter → water point.

2. Reverse osmosis+mixed bed method for desalination water filtration

3. EDI based desalination water filtration

Raw water → Raw water booster pump → Multi medium filter → Activated carbon filter → Softener → Precision filter → Primary reverse osmosis machine → Intermediate water tank → Intermediate water pump → EDI system → Microporous filter → Water point.

Demineralized water filtration electric control system

The saltwater filtration automatic control system uses a PLC control cabinet in conjunction with Yidong Electric's water treatment automatic control system to achieve the goal of saltwater filtration.

PLC control cabinet can realize machine equipment automation and whole process automatic operation, complete sound Internet function, and have stable characteristics Scalable Strong anti-interference ability and other characteristics are the key and life of industrialization. Capable of designing PLC control cabinets according to customer specific requirements Variable frequency control cabinet Soft start cabinets and other components meet user requirements and can be paired with industrial touch screens for easy use. The machine equipment can also transmit data through communication protocols such as modbus-profibus with the DCS system bus upper computer software; Industrial control computer Adjustment and supervision of Ethernet interfaces, etc.

Common faults of desalination water filtration equipment

The decrease in desalination rate and water production is a common fault in reverse osmosis and nanofiltration systems. The blockage of the inlet channel of the membrane element accompanied by an increase in component pressure difference is another typical fault. If the desalination rate and water production decrease smoothly, it indicates that the system has normal fouling, which can be treated by appropriate and regular cleaning. And sudden performance decline indicates system defects or misoperation, and it is necessary to take corresponding corrective measures as soon as possible, because any delay in processing will lose the opportunity to restore system performance, and at the same time, extremely low water production and water salt content TDS will also occur.

Salt water filtration automatic control system ordering service and ordering

Yidong Electric's hazardous wastewater self-control system provides comprehensive technical support services during use. Yidong Electric has established a professional customer service for marketing services, providing free pre-sales, in sales, and after-sales technical consultation and maintenance guidance to solve problems raised by users.

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Ordering Notice: Due to different product usage scenarios and user requirements, please contact the electrical engineer of Yidong Electric to customize according to the requirements.