| 摘要 |
PURPOSE:To terminate a supplying of kerosene to a kerosene gasification device when a pressure loss becomes a certain specified value by a method wherein a pressure sensing means is provided at an oil supplying pipe, a signal from this pressure sensing means is connected to a control circuit together with a signal from a kerosene pump, an output from the control circuit is connected to the kerosene pump and then the kerosene pump is controlled in response to signals from the pressure sensing means and the kerosene pump. CONSTITUTION:Kerosene within a kerosene storage tank 2 is supplied to a kerosene gasification device 5 through an oil supplying pipe 4 by a kerosene pump 3, a pressure sensing means 22 is arranged in the midway part of the oil supplying pipe. A pressure sensing means 22 may detect a pressure within the oil supplying pipe 4 and convert it into an electrical signal. A control circuit 20 may count an operating time of the kerosene pump 3, calculate a total combustion time and then a pressure loss caused by the pressure sensing means 22 is also calculated. Even if a certain time elapses and the pressure loss is less than a reference value, the control circuit 20 may continue combustion. In case that a certain time elapses and the pressure loss is less than a reference value, the control circuit 20 may judge it as an abnormal state to stop operation of the kerosene pump 3 and diminishe the combustion. Sensing of the abnormal kerosene is displayed on a displaying unit 21. |
