Temperature control of the reaction vessel
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This post was last edited by Tuna Clothes on 2018-2-3 at 15:41. Is it possible to maintain a stable temperature by creating an interlock using the temperature of the reactor, along with the control valves for the jacket cooling water and the dosing control valve? Furthermore, the dosing control valve is interlocked with the dosing flow meter. What type of control is this?
We generally use control valves or flow-limiting orifice plates to regulate the dripping rate, and control the reactor temperature with jacket water while ensuring stable dripping. When the boiler temperature reaches the high alarm level, the feed is cut off via interlock, and the chilled water valve is opened fully; we usually install a shut-off valve next to the water valve for emergency cooling
The more complex it is, the harder it is to control, and the more likely problems will arise. Temperature control is simply temperature control. Controlling the quantity means controlling the quantity. A chain is just a chain. Finally, I’d like to say that a high level of automation isn’t necessarily a good thing; there needs to be some tasks left for the operators to carry out. Otherwise, they’ll either be sleeping or looking at their phones, and it’s unlikely nothing will go wrong.
Interlocks cannot maintain temperature stability; they are meant for emergency intervention in dangerous situations.
I’m not quite sure – isn’t temperature control simply an interlock system that uses a thermometer and a control valve to implement PID regulation?
Adjustment and interlocking are two different things, as mentioned in the control scheme on the second floor. In some applications where high temperature control is required, a temperature is also set for the jacket, enabling cascade control.