| 摘要 |
<p>PURPOSE:To perform heating in accordance with the necessary amount to improve economy of a titled device by preventing power from being supplied to the heating device when it is detected from signals from a plurality of temperature detecting elements on the side of the boiler body that a fluid heated within the boiler body amounts to a quantity more than a predetermined residual quantity. CONSTITUTION:The heating device 6 is provided within the boiler body 1 having a fluid inlet port 13 and a fluid outlet port 12, and a plurality of temperature detecting elements 2-4 for detecting the temperature of the fluid are disposed in the vertical direction on the side wall of the boiler body 1. When it is detected from signals from the plurality of temperature detecting elements 2-4 that the heated fluid within the boiler body 1 amounts to a quantity more than the predetermined residual quantity, power supply to the heating device 6 is stopped. Further, when it is detected that the fluid amounts to a quantity less than a predetermined quantity, power is supplid to the heating device 6. In the above described manner, the fluid is heated in accordance with the necessary quantity, and radiation loss is reduced to obtain an economical effect.</p> |
