THE SURGE LINES TO REDUCE HEAT LOSS OF THE PRESSURIZER IN AN INTEGRAL REACTOR

摘要

Surge lines for reducing a heat loss of a pressurizer in an integral reactor is provided to increase a power production quantity and to extend a life span of a heater by reducing a power consumption of the heater. Surge lines for reducing a heat loss of a pressurizer in an integral reactor include a pressurizer(30), and surge lines(70). The pressurizer has a coolant space of the pressurizer which the coolant of a high temperature is filled in. The surge lines are installed to penetrate an upper barrel of an upper guide structure and an insulated material to connect to a circulation fluid path of a reactor coolant. The surge lines have a predetermined length downward and upward from the insulated material and the upper barrel of the upper guide structure in a length direction. The surge lines are formed to have a line type of a cylindrical shape.