| 摘要 |
PURPOSE:To simplify the temperature control of an evaporator and prevent the abnormal heating of an evaporating wall by a method wherein an operating body, operated to contact a radiator to the evaporating wall when the environmental temperature of the evaporating wall has exceeded an allowable value, is provided between the radiator and the evaporator. CONSTITUTION:A radiator 12 is supported so as to be contacted with and separated from an evaporating wall 7a, while an operating body 15 made of a shape memory alloy and operated when the environmental temperature of the evaporating wall has exceeded an allowable value to contact the radiator 12 with the evaporating wall 7a is provided between the radiator 12 and the evaporator 7. When the amount of heat transferred to the evaporating wall 7a has exceeded an allowable value due to abnormal combustion or the like which is caused in an evaporating tube 10, the radiator 12 is controlled with the evaporating wall 7a to release a part of the heat, transferred to the evaporating wall, to the outside of the titled burner whereby the abnormal heating of the evaporating wall 7a, in which the melting point of the evaporator 7 exceeds Leidenfrost point, may be prevented. |
