| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a breakage accident of a cylinder. SOLUTION: This safety device is provided with an upper lid 3 with an air inlet 2 provided in one end of a vessel 1, a feed/exhaust cylinder 5 with a liquid exit/entrance 4 provided in the other end of the vessel, a cylinder 6 projected inside the feed/exhaust cylinder and projected to a gas chamber 11, a stopper 20 provided in the upper end of the cylinder, a piston 7 inserted into the cylinder and partitioning the liquid chamber from the cylinder chamber. A communication port 12 communicating the gas chamber 11 with the liquid chamber is provided in the piston 7 and a safety valve 14 is provided in the communication hole.</p> |
