| 摘要 |
Coupling device for sealingly axially interconnecting two pressure vessel portions (1, 6) having a circular cross-section and annular coupling flanges (4, 5). On the surfaces facing away from each other the coupling flanges are provided with frusto-conical coupling surfaces for cooperation with corresponding coupling surfaces in two semicircular coupling ring halves (8, 9) gripping said coupling flanges (4, 5), said coupling ring halves by being tightened towards each other, via said coupling flanges sealingly locking both pressure vessel portions (1, 6) with respect to each other. The frusto-conical coupling surfaces (13) of said coupling flanges (4, 5) are directed obliquely upwards-outwards. Each coupling ring half (8, 9) is provided with an annular recessed groove (21), the limiting surfaces (22) facing each other having frusto-conical form with the same conicity as the coupling surfaces (13) of the coupling flanges (4, 5). One of the pressure vessel portions (6) is on the inside of adherent coupling flange (5) provided with a tubular, axially protruding coupling sleeve (15) sealing against the inner surface thereof. The protruding portion of the coupling sleeve (15) is provided externally with peripheral grooves (19) for a gasket (20) of the O-ring type. During interconnection of the pressure vessel portions the coupling sleeve (15) protrudes into the coupling flange (4) of the opposite pressure vessel portion and provides a seal against the inner surface thereof. |
