DEVICE FOR PREVENTING BOILING IN SOLAR HEAT COLLECTOR

摘要

PURPOSE:To provide an efficient prevention of boiling by a method wherin inclination of a mounting block for varying an inclination angle of a heat collector is controlled by a boiling preventive controller. CONSTITUTION:A mounting block 11 of which inclination angle can be varied is composed of an axis of rotation 12 of a heat collector connecting the heat collector 1 and the upper and of the mounting block 11, a heat collector fixing pin 13 and a pin rotation device 14. When a value t1 of the sensor 4 exceeds a desired value t0 for preventing boiling which is defined in advance in a controller 10, the controller 10 issues an operation command for the pin rotation device 14. The pin rotation device 14 rotates the fixed pin 13. The heat collector 1 is rotated around the axis of rotation 12 from a position a to a position b under its weight due to a fall of the fixed pin 13 and so an inclination angle theta is increased from thetaa to thetab. Amount of collected heat is controlled directly by varying the inclination angle of the heat collector and providing a boiling preventive arrangement.