SOLAR HEATING APPARATUS

摘要

PURPOSE: A solar energy accumulating apparatus is provided to prevent the frost break by circulating the thermal medium of a thermal medium circulating pipe according to the outdoor temperature. CONSTITUTION: A solar energy accumulating apparatus is composed of a heat accumulator tank(110), a solar energy collector(120), a first pump(128), an outdoor temperature sensor(191), and a control unit(170). The heat accumulator tank has an air-tight water storing space inside. The solar energy accumulating apparatus circulates a heat medium flow heated by solar energy through a heat medium circulating pipe(124). A heat medium circulating pipe is able to exchange heat with the hot-water of the heat accumulator tank via the inside of the heat accumulator tank. The first pump is installed in the heat medium circulating pipe. The outdoor temperature sensor detects the temperature of the outdoor space in which the solar energy collector is installed. If the temperature detected in the outdoor temperature sensor is less than the pre-set temperature, the frost break of the thermal medium circulating pipe is prevented by operating the control unit.