Vacuum evaporation, tube diameter selection
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Crystallizer, evaporation rate of 400 kg/h, medium: water, vacuum level of -95 kPa, temperature around 35°C; the length to the condenser is approximately 13 m. What diameter is suitable for the pipes?
What calculation is this? Hu Qiu’s “estimate” is complete nonsense.............. . . .
You think everyone is as ignorant as you are……
First, select the pumping speed of the vacuum pump, then calculate the pipe resistance using the Reynolds number, next choose an economical flow rate, and finally determine the pipe diameter……
You’re not “ignorant”, right? Then you, kid, come up with an equation! Haiyou said, regarding DN65, how was that figure determined? Damn it, show us how you calculated it! If you can’t do that, then DN65 is the standard used by Caomama, right? :P
Call everyone ‘dad’ and I’ll tell you……
You idiot, get lost! You worthless foreign fool who can’t make any sense – what nonsense are you talking about?! Get lost, go away! The farther you go, the better. :lol
Everyone has their strengths and weaknesses! If Haiyou knows, it would be great if he could let me know; it’s fine if he doesn’t. In many cases, it is based on empirical data obtained through years of work experience, with a margin added to ensure optimal performance. But there’s really no need to argue over who’s right or wrong on issues like this. ——————————————This is my personal opinion and does not represent the forum; it is for reference only.