NUCLEAR REACTOR WALL COOLING SYSTEM Russian patent published in 2020 - IPC G21C15/00 

FIELD: means of heat removal.

SUBSTANCE: invention relates to a means of removing heat in thermonuclear reactors of the tokamak type. System comprises heat flow reception surface 1 and adjacent to it at least two layers 2 of spherical elements 3, cooling water channels 4, originating from common collector 5 and even elements of layers 2 passing through spherical elements 3, counting from heat receiving surface 1, and ending with nozzles 6 at outlet of spherical element 3 of second of layers, heat flow receiving surface 1 together with casing 7 forms steam collection chamber 8 connected to steam outlet branch pipe 9. Heat flux emitted by the high-temperature plasma is received by surface 1 and heats spherical elements 3 of the first of layers 2 due to thermal conductivity. Note here that heat flow receiving surface 1 and spherical elements 3 of the first of layers 3 have maximum temperature. Heat flow is distributed on spherical elements 3 due to heat conduction mechanism along parallel heat exchange path. When water is supplied via channels 4, water boils in a thin layer of contact with hot surface. Process is explosive in which a part of the microdroplets is dropped from the hot surface and picked up by the flow of the formed steam, a part of the microdroplets falls on the other spherical element 3, where the processes are repeated.

EFFECT: technical result is improvement of cooling efficiency of tokamak walls.

1 cl, 1 dwg