摘要:
A closure for a pressure vessel that includes a neck with a groove defined in the inner diameter, and a door assembly that pivots between opened and closed positions. The door assembly includes a door portion sized to be received in an opening of the neck, a guide plate connected to the door portion and rotatable between locked and unlocked positions, a first lock ring segment positioned radially outwardly of the guide plate and a handle. The guide plate includes a first cam path defined therein that receives a cam member of a first lug assembly that extends inwardly from the first lock ring segment. Rotation of the handle (and guide plate) from the unlocked to the locked position moves the first lock ring segment from a locked to an unlocked position. In the locked position, the first lock ring segment is received in the groove of the neck.
摘要:
A device for a tight connection between a first housing (1) having a wall (3), an opening (4), a flange (5) and a door (6), and a second housing (2) having a wall (7), an opening (8), a flange (9) and a door (10). The flanges are complementary, and elements are used to displace the door (6). Elements are used to hold the two doors against each other, and the housings communicate between each other via a communication space (13). There is an inner annular critical line on the door (6) and an outer annular critical line of risk of contamination on the flange (9). The device includes elements (25 and/or 26) that are structurally integrated into the door (6) and/or the flange (9) and can form a separation between the communication space and the inner annular critical line and/or the outer annular critical line, when the doors are open.
摘要:
A locking cover assembly has a cover supporting base containing an opening circumferentially surrounded by a cover seat, and a cover movable to and from a closed position on the base in which the cover engages the cover seat to close the base opening. A cover locking mechanism on the cover includes cover locking levers mounted on the inner side of the cover, and a lock actuator movable through the cover and connected to the locking members for moving the levers between cover locking positions in which the levers are extended to engage the base about the base opening and clamp the cover to the base and cover unlocking positions in which the levers are retracted from the base to permit removal of the cover from the base.
摘要:
The cover is fixed without the use of bolts. On each side thereof, an almost closed groove is defined in one half by the peripheral portion of the cover and in the other half by the peripheral portion of the body. This groove extends only in a part of the major length of the valve and receives two round locking bars which are inserted in the groove by way of a center cavity. An outer sealing element hermetically closes the gap between the cover and the body and the two cavities. Application of the device in buried valves exposed to corrosive atmospheres.
摘要:
A folded gasket formed of a length of flexible fabric-like material is disclosed as being disposed between juxtaposed surfaces at the juncture of the lid periphery to a container mouth to adapt the container to withstand the rigors of transport, storage and burial as in the case of the nuclear waste material and the like.
摘要:
Cylindrical cavities of nuclear reactors and the like, containing a fluid under pressure, are closed by a plug consisting of a shell and a counter shell in prestressed condition.
摘要:
A lid catch on a container driven with superpressure is disclosed. A prestressed spring catch bolt is held in an engaged position due to the pressure exerted on an inner lid of the container which is transmitted by a counterpoise to the bolt. Therefore, releasing of the lid when the container is pressurized is impossible.
摘要:
An adjustable shim in combination with the door closing apparatus of sterilizer or other pressure vessel doors. The shim carried by the door is adjustable longitudinally of the toggle or locking bar to raise or lower each bar for providing a uniform sealing force about the periphery of the door.
摘要:
A PRESTRESSED CONCRETE PRESSURE VESSEL COMPRISES A CONCRETE VESSEL, AXIAL PRESTRESSING CABLE AND CIRCUMFERENTIAL PRESTRESSING CABLES. THE VESSEL HAS A LID AND AN INNER STEEL LINING. THE UPPER PORTION OF THE STEEL LINING IS DESIGNED AS A COMPARATIVELY RIGID STEEL STRUCTURE HAVING A SHOULDER FOR SUPPORTING THE LID AND SHOULDERS FOR FASTENING THE UPPER ENDS OF THE AXIAL PRESTRESSING CABLES.