Control system of purified water equipment
Release date: November 27, 2019 11:53:58
1、 Electric control system of purified water equipment
The system is equipped with power distribution cabinet to meet the needs of electric equipment such as pumps. In order to ensure the safety of the motor, each pump and other electrical equipment are equipped with air switch, AC contactor, thermal relay, etc.
Local control panel shall be set according to the layout of system equipment to facilitate local control of equipment.
2、 Automatic control system of purified water equipment
This set of chemical water system adopts automatic program control, and adopts PLC produced by Siemens company to realize manual and automatic operation. At the same time, it is equipped with electronic display screen to facilitate human-computer communication. Moreover, an alarm device is installed on the disk to realize the self diagnosis ability of the system.
After 8 hours of backwashing, the concentrated water side module can be closed automatically by PLC, and the reverse osmosis valve can work normally after 8 hours.
A low pressure switch is installed at the inlet of each group of high-pressure pumps. When the pump inlet pressure is lower than 0.05Mpa, the pressure controller acts to stop the equipment and ensure the safety of the high-pressure pump.
Slow opening electric valve and high pressure switch are installed at the outlet of each group of high-pressure pumps. When the outlet pressure is higher than 2.0MPa, the pressure controller will act to stop the equipment and ensure the safety of high-pressure pump, membrane module and membrane shell.
The pre membrane dosing system and high pressure pump interlock start / stop.
The operation status of the system can be displayed on the operation interface, and the conductivity, temperature and pH value of RO water can be displayed on the main controller to realize the high automation of water preparation and ensure the stable operation of the system. It can store, read, print and print the running parameters and test records of the equipment. PLC system shall have access control and assignment function (code or other identification mode).
The corresponding program of each liquid level detection instrument can be automatically controlled, and the corresponding device can be opened or closed.
Hierarchical management of water making equipment system. The software can generate historical curve and export data with USB interface, which is easy to print and save.
2、 Characteristics of automatic control system for purified water equipment ：
Siemens color touch screen panel or equivalent shall be selected for touch screen;
Other components such as relay, contactor, switch, etc. are used;
Equipped with independent operation control cabinet, installed on the body, PLC and LCD touch screen, as well as electrical switches and electrical components are concentrated in the control cabinet. The power switch is dustproof, waterproof, fast in heat dissipation and easy to install. The cabinet is made of 304 stainless steel with strong and weak electric control.