公开(公告)号：US3651869A

公开(公告)日：1972-03-28

申请号：US3651869D

申请日：1969-10-08

Applicant: FACTORY MUTUAL RES CORP

Inventor： LIVINGSTON WILLIAM L ,  TINE SEBASTIAN DAVID

IPC: A62C35/60 ,  A62C37/08

CPC classification number: A62C35/605

Abstract: A fire extinguishing sprinkler head for use with a wide range of extinguishants, such as water and hydrolized ablative gel, which has an expellable plug retained in a discharge opening in the sprinkler head by fire-responsive release means. Upon actuation of the release means, the plug is expelled from the sprinkler head by the pressure of the extinguishant to clear the discharge opening of obstacles which could affect the spray pattern of the extinguishant emitted from the sprinkler head. The plug is released at a predetermined inlet head pressure so that the sprinkler head will not provide the extinguishant to the fire at a pressure which will materially affect the spray pattern from the sprinkler head or adversely influence the spray pattern of other sprinkler heads in the system. The sprinkler head also includes means for modulating the flow of extinguishant in response to the inlet pressure of the extinguishant to retain a predetermined extinguishant spray pattern and to maintain the extinguishant supply pressure to the system at a higher level.

Abstract translation: 一种灭火喷头，用于广泛的灭火剂，如水和水解消融凝胶，其具有通过防火释放装置保持在喷洒头的排放口中的可驱动塞子。 在释放装置的启动时，塞子被灭火剂的压力从喷洒头排出，以清除可能影响从喷洒头发射的灭火剂的喷雾模式的障碍物的排放口。 塞子以预定的入口头压力被释放，使得喷洒头不会以将对实际上影响喷洒头的喷雾模式的压力向灭火器提供灭火剂，或不利地影响系统中其他喷洒头的喷雾模式 。 喷洒头还包括用于响应于灭火剂的入口压力调节灭火剂的流动以保持预定的灭火剂喷雾模式并且将系统的灭火剂供应压力保持在更高水平的装置。