Low pressure actuator for dry sprinkler system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/12
F16K-021/04
A62C-035/00
A62C-037/36
출원번호
US-0810631
(2001-03-16)
발명자
/ 주소
Reilly, William Joseph
출원인 / 주소
Victaulic Company of America
대리인 / 주소
Synnestvedt & Lechner LLP
인용정보
피인용 횟수 :
18인용 특허 :
18
초록▼
Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism, which requires that two separate events, such as discharging air pressure from the sprinkler system, an
Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism, which requires that two separate events, such as discharging air pressure from the sprinkler system, and an electrical detection, must occur in order for the sprinkler check valve to be activated, thereby allowing water into the sprinkler system, are disclosed. In certain embodiments, a low-pressure actuator is utilized in series with a liquid flow valve equipped with a solenoid and an electrical detector/sensor for detecting an event such as the occurrence of smoke, heat, or a high rate of temperature rise. In alternative embodiments, the low-pressure actuator itself is equipped with the solenoid and detector/sensor.
대표청구항▼
Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism, which requires that two separate events, such as discharging air pressure from the sprinkler system, an
Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism, which requires that two separate events, such as discharging air pressure from the sprinkler system, and an electrical detection, must occur in order for the sprinkler check valve to be activated, thereby allowing water into the sprinkler system, are disclosed. In certain embodiments, a low-pressure actuator is utilized in series with a liquid flow valve equipped with a solenoid and an electrical detector/sensor for detecting an event such as the occurrence of smoke, heat, or a high rate of temperature rise. In alternative embodiments, the low-pressure actuator itself is equipped with the solenoid and detector/sensor. is carried in the outer member; and a set of threads on the inner member that engages a set of threads on the latch to exert an outward force on the latch and a downward force on the outer member as the inner member is rotated relative to the outer member. 10. The apparatus according to claim 7, wherein the upper member comprises: an annular outer member that carries the latch and lands on the hanger; a tubular inner member adapted to be joined to a conduit extending upward from the inner member, the inner member being located in the outer member and having a bore that is substantially the same diameter as a bore of the hanger, the hanger having an internal shoulder in the bore of the hanger that is located adjacent a lower end of the inner member; and a seal that extends between the lower end of the inner member and the bore of the hanger. 11. The apparatus according to claim 7, wherein the supporting shoulder of the hanger comprises a locking member that is outward biased. 12. The apparatus according to claim 7, wherein the upper and lower shoulders in the receptacle comprise grooved profiles. 13. The apparatus according to claim 7, wherein the latch comprises: a split ring: and a plurality of segments on an outer diameter of the ring. 14. The apparatus according to claim 7, wherein the latch comprises: a split ring: and a plurality of segments carried on an outer diameter of the ring for radial movement relative to the receptacle; and wherein the tensioner comprises: a set threads on an outer diameter of the ring; and an inner member that has a conical surface with a set of threads that engage the threads on the ring, so that rotational movement of the inner member advances the threads and moves the ring and segments radially outward. 15. An apparatus for supporting an upper end of a subsea riser at a surface platform, comprising: a receptacle adapted to be mounted to a platform, the receptacle having upper and lower grooved profiles therein; a hanger adapted to be connected to the upper end of a riser; a hanger latch that engages the lower grooved profile in the receptacle to resist downward pull of the riser; an outer member that lands on the hanger; an outer member latch carried by the outer member that engages the upper grooved profile; an inner member that is carried in the outer member; and a locking surface on the inner member that cooperates with a locking surface on the outer member latch to exert an outward force on the outer member latch, the engagement of the latch with the upper grooved profile creating a downward force on the outer member as the inner member is moved downward relative to the outer member. 16. The apparatus according to claim 15, wherein the locking surfaces comprise threads. 17. The apparatus according to claim 15, wherein the outer member latch comprises: a split ring having an outer diameter and an inner diameter; and a plurality of segments carried on the outer diameter of the ring for radial movement relative to the outer member between engaged and disengaged positions with the upper grooved profile in the receptacle; and wherein the locking surfaces comprise: a set of threads on the inner diameter of the ring; and a set of threads on an outer diameter of the inner member. 18. The apparatus according to claim 15, wherein the locking surface on the outer member latch comprises a conical annular inner surface, and the locking surface on the inner member comprises a mating conical outer surface. 19. The apparatus according to claim 15, wherein outer member latch comprises: a split ring having an outer surface; and a plurality of segments carried on the outer surface of the ring for radial movement relative to the outer member between engaged and disengaged positions with the upper grooved profile in the receptacle; and wherein the locking surfaces comprise: a tapered inner surface on the ring having a set of threads; and a tapered outer s urface on the inner member having a set of threads. 20. The apparatus according to claim 15, wherein the inner member is adapted to be joined to a conduit extending upward from the inner member, the inner member having a bore that is substantially the same diameter as a bore of the hanger, the hanger having an internal shoulder in the bore of the hanger that is located adjacent a lower end of the inner member; and wherein the apparatus further comprises: a seal that extends between the lower end of the inner member and the bore of the hanger. 21. An apparatus for supporting an upper end of a subsea riser on a surface platform, comprising: a receptacle adapted to be mounted to a platform, the receptacle having upper and lower grooved profiles therein; a hanger adapted to be connected to the upper end of a subsea riser; a hanger latch that is outward biased and which engages the lower grooved profile in the receptacle to resist downward pull of the riser; an outer member that has a generally downward facing shoulder that lands on the hanger; an outer member latch carried by the outer member, the outer member latch having an outer portion that engages the upper grooved profile and an inner portion having an inner surface containing a set threads formed along a tapered surface; an inner member that is carried in the outer member, the inner member having a set of threads on a tapered outer surface portion of the inner member that engages the set of threads on the inner portion of the outer member latch to exert an outward force on the outer member latch as the inner member is rotated relative to the outer member; and the outer member latch being dimensioned to be located slightly out of alignment with the upper grooved profile when the outer member initially lands on the hanger, so that outward movement into the upper grooved profile causes a downward preload force to be exerted through the outer member, hanger and hanger latch into the receptacle. 22. The apparatus according to claim 21, wherein the hanger has an upper rim onto which the outer member lands. 23. The apparatus according to claim 21, wherein the inner member is adapted to be joined to a conduit extending upward from the inner member, the inner member having a bore that is substantially the same diameter as a bore of the hanger, the hanger having an internal shoulder in the bore of the hanger that is located adjacent a lower end of the inner member; and wherein the apparatus further comprises: a seal that extends between the lower end of the inner member and the bore of the hanger. 24. An apparatus for supporting a subsea riser at a surface platform, comprising: a receptacle adapted to be mounted to a platform, the receptacle having a generally upward facing load shoulder; a hanger adapted to be connected to a subsea riser; a supporting shoulder carried by the hanger that engages the load shoulder to resist downward pull of the riser; and a downward extending lip mounted to an exterior surface of the hanger below the supporting shoulder, the lip being spaced radially outward from the exterior surface and engaging an inside surface of the receptacle in radial interference fit. 25. The apparatus according to claim 24, further comprising: a wedge member mounted to the hanger for axial movement relative to the riser between an engaged position wedging between the lip and the exterior surface of the riser and a disengaged position. 26. The apparatus according to claim 25, further comprising: a rod extending downward from the wedge member; and a jack mechanism connected between the rod and the hanger for moving the rod axially to move the wedge member between the engaged and disengaged positions. 27. The apparatus according to claim 25, further comprising: a rod extending downward from the wedge member; and a hydraulic cylinder assembly connected between the rod and the hanger for moving the rod axially to move the wedge member
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이 특허에 인용된 특허 (18)
Reilly William Joseph ; Thomas Philip M., Actuator for check valve.
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