Zhejiang University Zhongkong
Thread Content
I currently have a reaction kettle, and it’s necessary to implement interlocking for the mixing agitator and the feeding ball valve. That is, when the agitator is in operation, the feeding ball valve must not open; whereas when the agitator stops, the feeding ball valve can be opened and closed freely. How should this interlock be implemented? I previously had an interlock between the feed ball valve and the mixer: when the mixer started, the feed ball valve would open; when the mixer stopped, the feed ball valve would not open. This interlock function worked as intended. The interlock mechanism above me is the exact opposite of one below; I’ve tried several methods but nothing works. I hope experts can offer some guidance
Here’s a tip: when the pump is running, this operation signal can be used to disconnect the output of this ball valve.
Send an electrical operation signal; invert it and insert it before the ball valve control circuit
I couldn’t resist reading it to the end; you’ll have to figure it out on your own.
Just use the operation signal of the mixer as the switching point, apply inverse logic, and connect it in series to the control valve’s output – that should do it