| 摘要 |
<p>A self-sealing and self-positioning replaceable rupture disc cartridge arrangement includes a cartridge receptacle mounted in a pressure relief vent having spaced apart opposite end walls with circumferential positioning grooves on respective internal surfaces thereof and a cartridge assembly having a rupture disc mounted therein for removable placement within the cartridge receptacle. The cartridge assembly includes an annular cartridge body having a cylindrical passage therethrough with a shoulder at one end thereof to retain disc seat rings, having the rupture disc placed therebetween, within the cartridge body. The cartridge includes seal mounting rings which have circumferential seals thereon, which are resiliently retractable into circumferential channels at opposite ends of the cartridge body, and which cooperate with the positioning grooves on the cartridge receptacle walls whereby upon placement of the cartridge within the receptacle, the seal rings snap into the positioning grooves. At least one of the seal rings acts as a piston such that when the pressure vessel is pressurized, a surface of the seal ring is exposed to gas pressure to forcefully urge the seal ring against an internal surface of the associated end wall of the receptacle to positively seal therebetween.</p> |
