A LPG CONTAINER HAVING A WELDED PORTION AND ROUNDED LOWEST BOTTOM GEOMETRY STRUCTURE FOR IMPROVE INTERNAL PRESSURE PERFORMANCE OF SMALL PRESSURE VESSELS

摘要

[0001] The present invention relates to a welding part for improving the internal pressure performance of a small-sized pressure vessel and a container having a round bottom shape. More particularly, the present invention relates to an elastomeric container having a welded part and a lower- And a through hole is formed at the center of the upper end plate having a curved shape so that the durability can be maintained by uniformly dispersing the pressure due to the inner gas in the cylindrical shape opened with the inner body. A lower end plate welded to the cylindrical lower body of the container body; And a neck ring provided with a valve which is welded to the through hole formed in the upper end plate so as to allow injection and discharge of the elasti into the inner space of the container body. . According to the present invention, there is provided a weld portion for improving the pressure resistance performance of a small-sized pressure vessel and a container having a round bottom structure, wherein the container body, the lower end plate and the neck ring are constituted. The torso of the main body of the container body is welded to the lower end plate at the position of the welding portion for changing the position of the stress concentrating portion where the rupture occurs so that the pressure resistance can be sufficiently maintained even when filling the high- So that the risk of explosion of the container is low, so that it can be used safely. In addition, according to the present invention, it is possible to recharge gas through a valve installed in a neck ring to prevent environmental pollution and to reduce the cost of users, and it is relatively inexpensive And can be easily processed and supplied.