Calculation of the discharge pipe diameter for reaction vessels
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The 4300L of liquid contained in the 6300L glass-lined reactor needs to be pumped out within half an hour. The viscosity of the liquid is not high; the reactor operates at atmospheric pressure, and the density of the liquid is slightly higher than that of water. What diameter should the discharge pipe have?
According to you, the flow rate is 8.6 m3/h. For a liquid with normal viscosity that flows by gravity at the bottom of the tank, a pipe flow velocity of around 1–1.5 m/s can be chosen; this results in a pipe diameter of DN50 mm after rounding.
If it is flowing by gravity, the flow rate can be kept relatively low; personally, I think around 0.5–1 m/s is sufficient, for a pipe diameter of DN80
To reduce non-process time, DN80 is recommended
DN80 is better; even if the diameter is larger, it’s difficult for operators to handle it
It is recommended that LZ check for himself the selection of the diameter for HGT 20570.6; there are calculation methods available there. DN80~~Take the exam by yourself from now on