发明名称 |
Pressure vessel fill protective device |
摘要 |
A method and apparatus for preventing over-pressurization of vessel during filling with a fluid where temperature of the vessel would cause the fluid to flash or rapidly expand on contact. A shut off device is placed in a conduit between the fluid source and the vessel being filled, the shut off device including a flow control piston that is held in position to permit fluid flow. Fluid pressure from the displacement space in the vessel is provided on both end of the piston. When a condition of over-pressurization occurs in the vessel a rupture disc associated with one end of the piston fails and causes a depressurization on that end of the piston causing it to move to a position where further filling of the vessel is prevented. The piston is positioned by a buckling pin and can be reset after over-pressurization of the vessel is connected and filling can resume. |
申请公布号 |
US5810057(A) |
申请公布日期 |
1998.09.22 |
申请号 |
US19950550140 |
申请日期 |
1995.10.30 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
WESTMAN, MARTIN ALFRED |
分类号 |
F17C13/04;(IPC1-7):B65B1/04 |
主分类号 |
F17C13/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|