The invention relates to radiating technology applied to fully sealed electronic cabinets, in particular to a radiating method and a radiating device applied to high power
electronic equipment required to be fully sealed in outdoor severe environment. By adopting a Carnot
refrigeration cycle principle, a low temperature and low pressure liquid
cooling medium enters a
cold plate radiator (also called internal
heat exchanger) arranged in a sealed cabinet through a sealed
pipe, absorbs heat generated when calorific electronic elements arranged on the
cold plate radiator work, and is evaporated into low temperature and low pressure
superheated steam; the low temperature and low pressure
superheated steam passes through a liquid-vapor separator, and dried superheated gas is sent into a compressor, and compressed into high temperature and
high pressure gas; the high temperature and
high pressure gas is sent into a condenser to release heat, and is condensed into supercooled liquid; the supercooled liquid is subjected to
pressure reduction by resistance of capillarity tubes into low temperature and low pressure two-phase fluid; and the fluid passes through a filter and a
pipe, and is sent into the
cold plate radiator, and the heat of the fluid is absorbed by the cold plate radiator to realize circulation, wherein an electronic mainframe adopts a fully sealed cabinet structure so as to achieve the waterproof, dampproof, dustproof and
electromagnetic shielding aims. The device adopting the radiating technology has the advantages of high power, small volume, easy control of temperature,
low noise, low cost,
high heat exchange efficiency and the like.