Porous cooling block and cooling apparatus of corium having the same and the cooling method using it

摘要

The present invention relates to a porous cooling block for cooling a core melt, a core melt cooling apparatus using the same, and a method for cooling a core melt using the same, wherein the core is aligned in a direction crossing one direction and one direction, And a second channel communicating with a first channel and a second channel communicating with the first channel and the side surface of the fiducial portion, the first channel extending inwardly from one side of the one side and the other side of the fiducial portion, Cooling block, a cooling water supply unit mounted on the plurality of porous cooling blocks to supply cooling water to the sacrificial portion and the porous cooling block covering the exposed upper surface of the porous cooling blocks, , The core melt being capable of melting the sacrificial portion and simultaneously cooling the plurality of porous cooling blocks And cooling the core melt by discharging water vapor or cooling water from the porous cooling block, the core melt can be cooled and solidified in the form of pores, and the cooling water can be uniformly supplied to the entire surface of the cooling block So that the cooling water can be easily supplied to the core melt. In addition, the porous cooling block can be easily manufactured in units of a plurality of brick structures and arranged in a position where the core melt is discharged, thereby improving the workability and obtaining a uniform quality block. In addition, it is easy to manufacture and install, so it can be easily applied to a reactor facility already in operation, and it can be detachably installed, so it is possible to replace only the cooling block in the area where maintenance is required, so that maintenance is easy and maintenance cost is reduced can do.