FIELD: thermal engineering.
SUBSTANCE: invention relates to thermal engineering and can be used for effective cooling of electronic components of equipment under various temperature conditions. The power control of an electric heating boiler is performed by connecting or disconnecting heating thermoelectric elements, which in boilers with a modern electronic control system is performed using triacs. Triacs are placed on cooling radiators mounted on low-temperature pipelines of the return coolant line of an electric heating boiler, as elements with the lowest temperature of the coolant circulation circuit or on the supply pipeline cold water from electric running water heaters. This possibility is ensured by the fact that the temperature of the coolant of the return line of the electric heating boiler or the temperature of the cold water supply of the electric running water heater is significantly lower than the recommended maximum operating temperature of the triac equal to 150 degrees Celsius.
EFFECT: technical result is to ensure stable and reliable operation of electronic control units, namely switching triacs of electric heating elements, by ensuring a constant operating temperature range in all modes of operation of electric heating devices.
2 cl, 1 dwg
