The distillation column, the steam heating, the negative pressure 0.9 MP, is the pressure vessel? The distillation column, the steam heating, the constant pressure, is the pressure vessel? Air pressure foam of air compressor, size 0.5 cubic, pressure 0.3 MP, is a pressure vessel? Vacuum pump vacuum bubble, size 0.5 cubic, pressure-0.1 MP, is a pressure vessel?
It's good to have a good look at the spline, TSR0004-2009 No class, no rules.
Maybe the pressure vessel, but not the class
To differs from general containers (pressure vessels), only the container at the same time satisfy the following three conditions, is called: (1) the pressure vessels working pressure is greater than or equal to 0.1 Mpa (work pressure refers to the pressure vessels under normal working condition, the top can reach the highest pressure (pressure)); (no liquid static pressure) (2) the diameter of the inner diameter (for the non-circular section, the width of the width of the diagonal, or the diagonal of the diagonal) is not less than 150mm (3) the working medium is a liquid with gas, liquefied gas or temperature above the standard boiling point; See if your distillation column meets the above criteria
