Abstract
This paper is intended to be of a practical nature and deals with the various aspects and problems which require to be considered and dealt with by a project engineer responsible for the layout, design, and engineering of a main steam piping system.
Two types of installation are considered:
Main steam piping for power station plants operating within a temperature range of 482°C (900°F) and 568°C (1055°F), and Long steam distribution lines operating up to a temperature of 468°C (875°F).
Although many of the problems are common to both types of installation such as pressure drops, terminal reactions on plant, expansion, layout, etc., these in both cases are discussed and procedures proposed for the preliminary and final stages of design, in order to arrive at a reliable and economic installation.
The necessity of preliminary and final detailed analysis is shown and the importance of considering the various types of supports, guides, and restraints in conjunction with this work.
Other features dealt with are the drainage of steam lines, cleanliness during erection, clean service conditions, lagging, and their contribution to satisfactory operation of the piping systems.
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