초록 ▼

A closure (10) for sealing fluid within a pressure vessel having a hub (70) with an opening therein includes a door (12) and a plurality of clamp ring segments (14) for fitting over an exterior portion of both the closed door and the hub. A plurality of interconnecting members (18) connect ends of a

A closure (10) for sealing fluid within a pressure vessel having a hub (70) with an opening therein includes a door (12) and a plurality of clamp ring segments (14) for fitting over an exterior portion of both the closed door and the hub. A plurality of interconnecting members (18) connect ends of adjacent clamp ring segments, and an actuator mechanism (20) moves the plurality of clamp ring segments into and out of engagement with the door.

대표청구항 ▼

1. A closure for sealing fluid within a pressure vessel having a hub with an opening therein, the closure comprising: a door for fitting over the opening in the hub and having a central axis;a plurality of curved circumferentially-spaced clamp ring segments, each clamp ring segment having a groove t

1. A closure for sealing fluid within a pressure vessel having a hub with an opening therein, the closure comprising: a door for fitting over the opening in the hub and having a central axis;a plurality of curved circumferentially-spaced clamp ring segments, each clamp ring segment having a groove therein extending along an interior of the curved clamp ring segment, each clamp ring segment being radially inwardly movable relative to the central axis of the door from a door open position, with the groove of each clamp ring segment disengaged from the door and the hub, to a door closed position for fitting the groove of each clamp ring segment over an outer exterior portion of both the door and the hub;a plurality of interconnecting members for connecting circumferential ends of adjacent each clamp ring segment; andan actuator mechanism rotatable about the central axis of the door for radially inwardly moving each of the plurality of clamp ring segments from the door open position to the door closed position to dispose the outer exterior portions of both the door and the hub within the groove of each of the plurality of clamp ring segments. 2. The closure of claim 1, wherein the actuator mechanism includes a pivot mechanism rotatable to move the plurality of clamp ring segments to receive the outer exterior portions of both the door and the hub within the groove of each of the plurality of each clamp ring segment. 3. The closure of claim 1, further comprising: the actuator mechanism including a plurality of radially extending members each interconnected to a respective one of the plurality of clamp ring segments; anda guide block mounted to the door for guiding movement of each of the radially extending members while moving the plurality of clamp ring segments to the door closed position. 4. The closure of claim 1, further comprising: a first seal sealing between an axially inner face of the hub and an axially outer face of the door; anda second seal sealing, between a radially outer face of the hub and a radially inner face of the door. 5. The closure of claim 1, wherein the plurality of clamp ring segments are supported on the door and move with the door. 6. The closure of claim 1, wherein three or more clamp ring segments are circumferentially-spaced about the central axis of the door, each of the plurality of clamp ring segments securing a radially exterior portion of the door proximal to a radially exterior portion of the hub. 7. The closure of claim 1, wherein the plurality of interconnecting members includes two or more bolts each for connecting adjacent ends of adjacent clamp ring segments. 8. The closure of claim 1, wherein an outer face of each of the plurality of clamp ring segments in the door closed position is substantially parallel to an outer face of the door. 9. The closure of claim 1, wherein the actuator mechanism includes a sleeve for receiving a torque member to rotate the actuator mechanism about the central axis of the door. 10. The closure of claim 1, further comprising: a pressure plug removably connected to the door to prevent the actuator member from moving the plurality of clamp ring segments from the door closed position to the door open position when the pressure vessel is pressurized, and removable from the door to allow the actuator member to move the plurality of clamp ring segments to the door open position when the pressure in the pressure vessel is substantially at atmospheric pressure. 11. A closure for sealing fluid within a pressure vessel having a hub with an opening therein, the closure comprising: a door for fitting over the opening in the hub and having a central axis,a plurality of curved circumferentially-spaced clamp ring segments supported on the door, each clamp ring segment having a groove therein extending along an interior of the curved each clamp ring segment and each clamp ring segment being radially inwardly movable relative to the central axis of the door from a door open position, with the groove of each clamp ring segment disengaged from the door and the hub, to a door closed position in which the groove of each of the plurality of clamp segments is fitted over radially outer exterior portions of both the door and the hub:a plurality of interconnecting members for connecting circumferential ends of adjacent each clamp ring segment in the door closed position; andan actuator mechanism rotatable about the central axis of the door for radially inwardly moving each of the plurality of clamp ring segments from the door open position to the door closed position to dispose the outer exterior portions of both of the door and the hub within the groove of each of the plurality the actuator mechanism including a plurality of radially extending members each coupled to a respective one of the plurality of clamp ring segments. 12. The closure of claim 11, further comprising: the actuator mechanism includes a pivot mechanism rotatable to move the plurality of each clamp ring segment to receive with the outer exterior portions of both of the door and the hub within the groove of each of the plurality of clamp ring segments; anda guide block mounted to the door for guiding movement of each of the radially extending members while moving the plurality of clamp ring segments to the door closed position. 13. The closure claim 11, further comprising: a first seal sealing between an axially inner face of the hub and an axially outer face of the door; anda second seal sealing between a radially outer face of the hub and a radially inner face of the door. 14. The closure of claim 11, wherein three or more clamp ring segments are circumferentially-spaced about the radially exterior portion of the door, each of the plurality of clamp ring segments securing a radially exterior portion of the door proximal to a radially exterior portion of the hub. 15. The closure of claim 11, wherein an outer face of each of the plurality of clamp ring segments in the door closed position is substantially parallel to an outer face of the door. 16. The closure of claim 11, wherein the actuator mechanism includes a sleeve for receiving a torque member to rotate the actuator mechanism about the central axis of the door. 17. A closure for sealing fluid within a pressure vessel having a hub with an opening therein, the closure comprising: a door for fitting over the opening in the hub and having a central axis;a plurality of curved circumferentially-spaced clamp ring segments supported on the door, each clamp ring segment having a groove extending along an interior of the each clamp ring segment, and each radially inwardly movable relative to the central axis of the door from a door open position, with the move of each clamp ring segment disengaged from the door and the hub, to a door closed position for fitting an outer exterior portion of both the door and the hub within he groove of each of the plurality of clamp ring segments:a plurality of interconnecting members for connecting circumferential ends of adjacent each clamp ring segments; andan actuator mechanism rotatable about the central axis of the door for radially inwardly moving each of the plurality of clamp ring segments from the door open position to the door closed position to dispose outer exterior portions of both the door and the hub within the groove of each of the plurality of clamp ring segments, the actuator mechanism including a pivot mechanism rotatable to inwardly move the plurality of clamp ring segments into engagement with both the closed door and the hub. 18. The closure of claim 17, further comprising: the actuator mechanism including a plurality of radially extending members each coupled to a respective one of the plurality of clamp ring segments; anda guide block mounted to the door for guiding movement of each of the radially extending members while moving the plurality of clamp ring segments to the door closed position. 19. The closure of claim 17, further comprising: a first seal sealing between an axially inner face of the hub and an axially outer face of the door; anda second seal sealing between a radially outer face of the hub and a radially inner face of the door. 20. The closure of claim 17, wherein an outer face of each of the plurality of clamp ring segments is substantially parallel to an outer face of the closed door; and the actuator mechanism includes a sleeve for receiving a torque member to rotate the actuator mechanism about the central axis of the door.