REACTOR CORE HAVING COMMON HEXAGONAL FLOW TUBE IN A RESEARCH REACTOR HAVING ROD-TYPE FUEL ASSEMBLIES

摘要

A reactor core having a common hexagonal flow tube in a research reactor having a rod-type nuclear fuel is provided to improve density of the reactor core and speed of a neutron by minimizing a space between the common flow tube and a neutron absorption body. A reactor core having a common hexagonal flow tube in a research reactor having a rod-type nuclear fuel includes a core housing, a grid plate(114), a plurality of hexagonal type nuclear fuel collecting bodies(40a), a plurality of bottom support mechanisms(130), and a common hexagonal type flow tube(120). The core housing has a pipe shape penetrated upward/downward by an inner wall of a reflective vessel. The grid plate(114) is provided in a bottom part of the core housing. The plurality of hexagonal type nuclear fuel collecting bodies(40a) have a plurality of rod type nuclear fuels which are connected to a central rod and a circumference of the rod. The plurality of bottom support mechanisms(130) are supported by the grid plate(114) to receive a lower part of the hexagonal type nuclear collecting body(40a). The common hexagonal flow pipe(120) has a plurality of hexagonal type receiving spaces to receive the hexagonal type nuclear fuel collecting body(40a).