Prestressed vessel for compressed air - has walls made from segments with ribs having stress relief grooves

摘要

A pre-stressed metal pressure vessel or container for gases or gaseous mixtures, particularly air, has ribs insides aligned along its longitudinal axis. These ribs have one or more stress relieving grooves cut into them. The mid planes of the rib lie parallel to the meridional plane of symmetry of the sector elements which make up the vessel wall. In one design, a set of ribs is incorporated in a frame around the sector. These ribs improve the heat absorbing capacity.