Valve switching rate
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What does it mean that the three-way valve in the adsorption tank has a valve opening/closing rate of 0.83? When the punching valve punches the adsorption tank, it opens pre-gradually at a rate of 2% to 40 degrees, and after 120 seconds, it automatically reaches the maximum value in a cascade manner. How to understand it.
Is the first one a control valve? If so, it should be 0.83%/second, that is, the valve is opened and closed at a rate of 0.83% per second ； For the second one, the control loop should be the auxiliary tuning loop. A 2% rate specifies the opening speed of the valve, to prevent issues arising from too rapid opening at the beginning. The opening speed is 2% per second; that is, the valve opens at a rate of 2% per second until it reaches 40% openness, which takes 20 seconds. After waiting another 100 seconds, or in other words, 120 seconds after the valve start to open, it is set to automatic mode, with the set value being determined through cascade writing in the main control loop.
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