chlorine solenoid valve
here is the project report , i hope it helps
thanks for your reply
link for the schematic is:
working of the project
1. First in the given figure, solenoid valve A opens and the tank A filled with water. When tank A is filled, solenoid valve B opens and respectively tank B filled with chlorine. Both the solenoid valves open by the help of a optocoupler
2. Once, both the tanks are filled to a given level, and then we manually start both the submersible water pumps.
3. At this point, both valve A and valve B are open.
4. Both water and chlorine is filled in reservoir C till level reaches let say “ 10 Litres”.
5. When the liquid level reached above the 10 mark, then the pressure transducer will send signal to the microcontroller to close valves A and B
6. We put a conductance probe in reservoir C and we set it to a point say “5”.
7. If the conductance is above “5”, then valve A opens and water is filled in the reservoir C till it matches the set point.
8. If the conductance is below “5”, then valve B opens and chlorine is filled in the reservoir C till it reaches its set point.
9. Let’s assume now that the liquid in reservoir C is 20 litres due to the control actions taking place.
10. If the industry requires a certain amount of liquid let’s say “15” litres from the reservoir, then we set the required set point for the microcontroller.
11. Now pressure transducer is giving a reading of 20 litres to the controller which results in the opening of the valve
12. Valve C closes when the pressure transducer gives a reading which matches the microcontroller set point.