Problems with the connection between the heat exchanger tube sheet and the tube box
Thread Content
As shown in the figure below, how is the length of the studs used to connect the heat exchanger tube sheet to the tube box flanges determined? What is an appropriate length for the protrusion of the studs beyond the nuts, that is, what should be the value of h in the figure?
This is how we calculate it: the length of the container flange studs and shoulder studs = the actual distance between the outer edges of the two flanges + 3 times the bolt diameter (MXX)
The thickness is generally T1 + T2 + gasket thickness + washer thickness + 0.88d (nut thickness) + 0.3d (overhang length), and then rounded according to the standards. Generally, once the nut is installed, an extension of 0.2~0.5d is sufficient
3 times the bolt diameter (MXX); if it’s M20, does that mean 30 mm of overhang on each side?
It extends by 10, with another nut on each side as well
;P, yes, I was wrong.
Based on empirical calculations, after adding up the thicknesses of all gaskets, nuts, etc., 3 turns of thread remain. For reference only