System and method for detecting pipe breakage of steam generator of high temperature gas-cooled reactor

• Main Authors: SUN YANFEI, LI XIANFA, ZHONG SHUOPING
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2010
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a system for detecting pipe breakage of a steam generator of a high temperature gas-cooled reactor. The system is characterized by comprising a flow sensor, a differential pressure transmitter and a single-chip, wherein the flow sensor is arranged in a cold helium gas rising pipe for measuring the helium gas flow of a loop; the differential pressure transmitter receives a differential pressure signal inside and outside the flow sensor obtained by pressure guide pipes which are arranged inside and outside the flow sensor; the single-chip is connected with the output end of the differential pressure transmitter through an analogue/digital conversion input end, and the output end of the differential pressure transmitter is connected with a relay. The system has a simple structure and high reliability, and can run continuously for a long time under maintenance-free condition; due to the adoption of a noninvasive measurement technique, no additional resistance loss is caused to the loop; an