| 摘要 |
PROBLEM TO BE SOLVED: To provide an economical automatic liquid exhaust device without flowing the liquid backward to a liquid storage tank even when the operation of a forced liquid exhausting means is stopped. SOLUTION: An automatic liquid exhaust device comprises a liquid storage tank 4, a liquid exhaust pipe 12 extending upward from the liquid storage tank 4 and then extending downward, a forced liquid exhaust means 7 for forcedly exhausting the liquid in the liquid storage tank 4 through the liquid exhaust pipe 12 and a control circuit 19 for controlling the forced liquid exhaust means 7 to be started when liquid level in the liquid storage tank 4 reaches a prescribed level L1 and to be stopped after the liquid begins to flow out from the outer end part 14 of the liquid exhaust pipe 12. Even after the stop of the forced liquid exhaust means 7, the liquid is continuously exhausted in accordance with with the siphon action of the liquid exhaust pipe 12. |
