How to reduce rupture of steam generator pipe with automatic safety device in pressurized water reactor

摘要

The effect of the rupture of the steam generator tube 21 on the pressurized water reactor 1 is through the heat exchanger 37, which is an automatic heat removal device immersed in the coolant storage tank 35 for the containment fuel, the steam generator 11 It is reduced by reducing the pressure in the primary loop by converting the reactor coolant in response to high feed water levels in the reactor. In addition, the proper amount of reactor coolant is maintained in response to the steam generator high level, which supplies the coolant from the core make-up tank 43 into the primary loop at the pressure in the pressurizer 31 of the reactor coolant system. The steam generator high level is also used to shut off the starting feed water device 81 and the chemical and volume control 85 to prevent flooding into the steam header 27.