METHODS AND DEVICES FOR HEATING DEAD-END STEAM LINE OFFTAKES IN HIGH POWER GENERATING UNITS

摘要

This is a comparative analysis of the operation of devices for heating dead-end offtakes of lines for live steam and hot intermediate heating steam in 300 - 800 MW power units. The operating efficiencies of pressure pipes for live steam and intermediate heating steam are estimated for various operating modes. The most efficient schemes for heating of dead-end pipes for live steam and intermediate heating steam are developed. A specific device is proposed based on the conditions for ensuring heating of the dead-end pipelines.