Catalyst unit main fan switched! Please ask an expert to explain!
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The catalytic unit is equipped with two main fans, each with a different load. Currently, the fan with the lower load is in operation; it is now necessary to switch in the fan with the higher load. How should this be done? They are all centrifugal compressors! I hope the expert can give some guidance
The last edit to this post was made by Feilongzaiyou on 2017-8-10 at 07:44: 1. First, adjust the outlet pressure of the larger unit to be 5~10 kPa higher than that of the smaller unit； (Adjust using an anti-surge valve.) 2. Slowly open the outlet valve of the large unit, and check whether the flow rate at the main air outlet increases; if it does, fully open the outlet valve of the large unit. Start the wind; close the anti-surge valve of the larger unit while opening the anti-surge valve of the smaller unit to maintain a stable flow rate ； 3. Once the anti-surge valve of the small unit is fully open, reduce the outlet flow of the small unit to maintain the main air flow rate ； 4. Slowly turn off the anti-surge function of the host and adjust its speed, operating in accordance with the process requirements.
It seems it’s been catalyzed before: lol