STEAM STOP VALVE, STEAM LEAKAGE MONITORING SYSTEM AND MONITORING METHOD OF STEAM STOP VALVE

摘要

PROBLEM TO BE SOLVED: To provide a steam stop valve, its steam leakage monitoring system, and its monitoring method that can quantitatively detect steam leakage, its area, and its degree of the steam stop valve with high accuracy.;SOLUTION: A steam stop valve is provided in a steam pipe, and the steam stop valve comprises a valve body 12 provided with a valve seat 11 in a steam flow passage 10. A sound collecting rod 24 for detecting steam leakage is provided on the downstream side of a steam flow from the valve seat 11 on an outer peripheral surface of the valve body 12.;COPYRIGHT: (C)2014,JPO&INPIT