Cylindrical Vacuum Chamber Wall Thickness

Radial stresses are ignored which is considered reasonable given that the maximum.

Cylindrical vacuum chamber wall thickness.

This paper gives the methodology methods and hints for designing vacuum chambers. Any bulk container will naturally try to form a spherical shape under sufficient internal pressure. Producing a vacuum chamber means de fining the boundary conditions inner and outer envelopes operational constraints etc choosing the material designing the parts manufacturing and assembling these parts together and putting them under vacuum. A main flange with fitting lid allows access to the chamber a door hinge increases ease of use.

Thicker walled material should be specified for chambers with ports having angular tolerances of less than 1 2º or for processes that require large mass for vibration dampening. The pressure and the temperature i want to work at are in the range of 0 1 0 07 mbar and 200 350 degree of centigrade. Pressure vessels calculates the wall thickness of plain spheres of same material and equal wall thickness throughout. The d shape chamber when viewed from above combines the thin wall of the cylindrical chamber with the volume and large o ring sealed access door of the box chamber making it appropriate for high vacuum applications.

The material for both systems is black iron sheet. Chamber diameter of 600 mm requires a flat bottom about three times the wall thickness as of a dished end. Asme viii only considers membrane stresses circumferential in a spherical vessel i e. Chamber diameter wall thickness under 17 inches.