| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid force feed device capable of reducing a working steam quantity entering all the way into the upstream side of an inflow side check valve before closing the inflow side check valve, when opening an air supply valve by closing an exhaust valve. SOLUTION: The air supply valve 20 is arranged in a working steam introducing port 11, and is arranged from the exhaust valve 21 in a working steam discharge port 13. The inflow side check valve 62 allowing only a flow of liquid to a sealed vessel 2, is arranged in a liquid inflow port 16, and a force feed side check valve 63 allowing only a flow of fluid to a liquid force feed destination, is arranged in a liquid discharge port 17. Opening-closing of the air supply valve 20 and the exhaust valve 21 is switched by operating a snap mechanism 5 in response to lifting of a float 3 arranged in the sealed vessel 2. The inside of the sealed vessel 2 is separated into the working steam introducing port 11 side and the liquid inflow port 16 side, and an upper part has a ventilation small hole 66, and the lower end is provided with a partition cylinder 65 extending below a water level in the sealed vessel 2 when closing the exhaust valve 21 and opening the air supply valve 20. COPYRIGHT: (C)2011,JPO&INPIT |
