| 摘要 |
PURPOSE:To enable to continuously operate a thermocouple generator even when a pipe line is failed by normally using gas fuel and automatically switching to liquid fuel when gas pressure decreases. CONSTITUTION:A gas fuel supply port 1 is connected to a gas tube, and normally receives gas fuel under the prescribed pressure. When the fact that the pressure of the gas fuel decreases lower than the preset pressure is detected by a gas pressure detector 3, a switch 4 is switched to a liquid fuel supply port 2 and a pressure pump 5 side. The fuel is supplied from the switch 5 through an evaporator 6 to a gas burner 9. Electric power is supplied due to Seebeck effect by the heat form a combustion chamber 7 from a power unit 10. |
