REACTOR CORE SIMULATION BODY FOR OVERALL EFFECT THERMAL HYDRAULIC TEST

摘要

A reactor core simulation body for an overall effect thermal hydraulic test, comprising a pressure-bearing barrel body (110), a nacelle (120), a filling body (130), a reactor core fuel simulation body (140) and a copper rod (150). The pressure-bearing barrel (110) has a hollow structure, and the upper and lower ends are respectively connected with a flange cover (160) and a spherical seal head (170) in a sealing manner. The nacelle (120) of a hollow structure is suspended in the pressure-bearing barrel (110) and has a certain gap from an inner wall thereof. The filling body (130) is provided within the nacelle (120) and is enclosed to form a required passageway (131). The reactor core fuel simulation body (140) is fixed within the passageway (131) and has a certain gap from the inner wall of the filling body (130). The copper rod (150) is fixed to the flange cover (160) and is sealed by an insulating material along with the flange cover, and the two ends of the copper rod (150) are respectively electrically connected to an external electrical power system and the reactor core fuel simulation body (140). The reactor core simulation body provides an electrical power input interface above the reactor core simulation body, which solves the problem of loose sealing caused by bottom heating, and ensures the convenience of electrical power distribution, and has a simple structure, a small volume, high security and good economic efficiency.