Questions regarding the calculation of instrument air volume
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I would like to ask the experts: If there are currently 200 pneumatic cut-off valves and 60 pneumatic control valves, with 50 of the cut-off valves and 30 of the control valves operating simultaneously each minute, and assuming there are no other gas-consuming devices, how should the total amount of gas used be calculated? I know there are formulas for calculating this. Could you list them specifically so that I can plug in the values and get the result? I’m a complete beginner; I’ve never dealt with this before. I hope some expert can help me out. Thank you again!
Estimate the gas consumption of different types of instruments, calculate the total gas demand, and then design a margin. For details, refer to HGT 20510-2014 Design Code for Instrument Air Supply and SH 3020-2013 Design Code for Instrument Air Supply in the Petrochemical Industry
Thank you, I’ve learned from this sharing. Also, are there any public websites where I can look up similar design standards?
It is necessary to refer to the capacity, stroke, and switch time of the valve’s pneumatic actuator; the air consumption varies depending on the pipe diameter, but the requirements for a single valve can generally be estimated.
The valve manufacturer needs to specify the cylinder size.
I have this. Could you provide an example based on this standard? For example, there are 100 pneumatic valves now.
Could you give an example to illustrate? For example, with 100 valves, could you provide an estimation by showing the calculation process?