Please help, it’s urgent
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As the title suggests, how to solve it? Thank you.
I don’t have a professional background in this field, so it seems quite difficult
Cascade control: the primary variable is the temperature of the reactor liquid, while the secondary variable is the temperature of the cooling water; it operates in a positive manner, with air-actuated valves. I’ll add it later; if it’s not right, just take a photo! !
This post was last edited by jsf60780 on 2017-3-12 at 11:03; some content was added for reference. Please point out any errors.
A gas shut-off valve should be selected; in the event of a failure, the valve should remain fully open to prevent danger caused by excessive tank temperature.
In cascade control, the primary variable is the temperature at the bottom of the tower, while the secondary variable is the jacket valve; in the event of a fault, the valve operates in such a way that the higher the temperature, the greater the degree of opening of the valve
Thank you all for your detailed and thorough answers.
You’re right, I didn’t think things through properly:(
With so many enthusiastic sea friends here, let’s all improve together