文档介绍：chapter one
Overview of pressure
vessels
Contents
Introduction.................................................................................................
Development of pressure vessel construction codes...........................
References .............................................................................................................
Introduction
Vessels, tanks, and pipelines that carry, store, or receive fluids are called
pressure vessels. A pressure vessel is defined as a container with a pressure
differential between inside and outside. The inside pressure is usually
higher than the outside, except for some isolated situations. The fluid inside
the vessel may undergo a change in state as in the case of steam boilers, or
bine with other reagents as in the case of a chemical reactor.
Pressure vessels often have bination of high pressures together with
high temperatures, and in some cases flammable fluids or highly radio-
active materials. Because of such hazards it is imperative that the design be
such that no leakage can occur. In addition these vessels have to be
designed carefully to cope with the operating temperature and pressure. It
should be borne in mind that the rupture of a pressure vessel has a potential
to cause extensive physical injury and property damage. Plant safety and
integrity are of fundamental concern in pressure vessel design and these of
course depend on the adequacy of design codes.
When discussing pressure vessels we must also consider tanks. Pressure
vessels and tanks are significantly different in both design and construction:
tanks, unlike pressure vessels, are limited to atmospheric pressure; and
pressure vessels often have internals while most tanks do not (and those
that do are limited to heating coils or mixers).
Copyright 2005 by CRC Press, Inc. All Rights Reserved.
Pressure vessels are used in a number of industries; for example, the
power genera