| 摘要 |
PURPOSE:To prevent the interior of a heat releasing cylinder from being overheated due to the dry burning of the titled heat collector by a method wherein in the solar heat collector provided with the heat rediating cylinder connected with a heat pipe, the heat pipe is made to be of controllable type and provided in such a manner that the heating section of the heat pipe is arranged within the heat releasing cylinder while the cooling section thereof is arranged outside the cylinder. CONSTITUTION:The heat pipe 3 is provided within a light transmissive vacuum glass tube 1 with one end of the heat pipe 3 projecting outside the glass tube 1 and the heat releasing cylinder 10 enclosing a heat medium pipe 11 is connected to the heat pipe 3. In the heat collector of the above structure, the variable inductance type heat pipe 18 having an operation liquid and a non-condensable gas sealed therein at the ambient temperature and under the atmospheric pressure is attached to the heat collector in such a manner that the heating section 181 is received within the heat radiating section 10 and the cooling section 183 thereof connected to the heating section 181 through the intermediate section 184 is arranged outside the cylinder 10. Conseqently, when the heat collector is burned dry, the operation liquid 13A within the heating section 181 is vaporized and transferred to the cooling section 183 and the operation liquid condensed at the cooling section 183 is dropped down on the heating section 181 to thereby prevent the interior of the heat releasing cylinder 10 from being overheated. |
