Shower nozzle for deck

Abstract

The invention provides a shower nozzle for a deck. The shower nozzle adopts the design of three sleeves, the principles of hydraulic jacking and spring return, and a water distribution structure that multiple water flows splash back through impact, belongs to the field of fire control, and solves the problems that a conventional shower nozzle interfere with the operation of an aircraft and a vehicle, the foam expansion is low, the foam stability is poor, and the coverage is small. A swirler is plugged in an inner sleeve hole. A water distribution plate and an inner sleeve are fastened by a screw. The springs are arranged between a middle sleeve and the inner sleeve. The middle sleeve is screwed in an outer sleeve hole. At ordinary times, the water distribution plate are pushed by the springs, so that the water distribution plate maintains a level with the deck. In spraying, a fire fighting medium enters the swirler, and is sprayed out from a double-ring water outlet in the top of the inner sleeve; besides, the water distribution plate and the inner sleeve compress the springs to move up and come out from the deck under the hydraulic action, and after splashing back through impact of the water distribution plate, the fire fighting medium covers protection areas in a lotus leaf shape; and the shower nozzle comprises an outer sleeve, the inner sleeve, seal gaskets, a snap spring, the swirler, locking buttons, locking nuts, the springs, the middle sleeve, a seal ring and the water distribution plate. The shower nozzle is suitable for protecting flight decks of naval ships, hangars, dangerous cargo wharfs and trestles.

Description

technical field [0001] The invention relates to a deck sprinkler used in the fire protection industry, which covers the fire extinguishing medium to the protected area in the shape of a lotus leaf, adopts the design of three casings, the principle of hydraulic jacking and spring reset, and multiple streams of water flow impact the backsplash cloth. The water structure belongs to the field of fire extinguishing and fire control. Background technique [0002] The water mist nozzles in the current national standard GB5135.5-2003 have spray angles of 90° and 120°, and the spraying of fire extinguishing medium is relatively high, which is greatly affected by wind force and covers a small area. [0003] There is no cyclone in the flow channel of the current deck nozzle, and the foam mixture is not pre-stirred and mixed, the foaming ratio is low, and the fluidity and stability of the foam are poor; there is no jacking and reset mechanism; the nozzle is protruding, which is not suit...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the conventional water mist nozzle is protruding, which hinders the daily operation of deck aircraft and vehicles, the coverage area is small, the foaming ratio is low, and the foam stability is poor

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