| 摘要 |
A fast opening, stand alone pressure relief valve (200) for providing pressure relief for a vessel in which the valve (200) is installed. The valve has an ejector (216) and a sleeve structure (210) in which the ejector (216) moves. The ejector (216) is constructed of a material that will expand outward slightly upon pressurization to increase friction between staging glands (202) provided on the sleeve structure (210) and buckling glands (206) provided on the ejector (216). Also, as pressure on the ejector (216) increases, the buckling rings (206) deform slightly allowing them to release their grip on the staging glands (202) and move past them. Once the buckling rings (206) move past the staging glands (202), the pressurized ejector (216) quickly moves to its open position, i.e. opening within 2 and 3 milliseconds, thereby releasing the pressure on the vessel.
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