| 摘要 |
A fire protection sprinkler head construction comprises a frame having at one end a water passage therethrough which normally is closed by a seal maintained in passage sealing position by a thermally sensitive strut which collapses in response to a predetermined increase in its temperature and enables water to flow through the passage. At the other end of the frame is a deflector against which water flowing through the passage impinges and is deflected outwardly in a spray. Encircling the deflector is an annular distributor having a plurality of circumferentially spaced apart blades which intercept water deflected outwardly by the deflector. The blades are twisted at their root ends and bent at their free ends to cause water impinging upon the blades to be divided into relatively large droplets and distributed circumferentially. |
