In addition, according to the size of the caliber, it can be divided into ordinary and expanded types, open and closed types, side wall types, water curtain types, water nozzles and other nozzles.
Swing sprinkler is the most widely used sprinkler. It is installed on the water supply branch pipe in a swinging way, and sprinkles water in a parabolic way, spraying 80 ~ 100% of the total water to the ground. Protect rooms with ceilings, and arrange sprinklers under the ceilings. Drip or ceiling sprinklers should be used.
Extended data:
Four key points in the installation of fire sprinklers: the installation spacing of sprinklers is generally 3.6m in diameter and1.8m in radius; The maximum protection area in the sprinkler is 12.5 square meters; Nozzle not less than 300mm away from the wall; When the distance between the nozzle and the ceiling is more than 80m, and there are combustible materials in the ceiling, it is necessary to spray up and down.
Under the action of heat, the sprinkler automatically retreats according to the predetermined temperature range or is controlled by the fire signal, and the equipment retreats and sprinkles water according to the designed sprinkler shape and flow. The splash plate is installed at the top of the nozzle, which can divide the water flow into the specified nozzle shape. Frame refers to the support arm of sprinkler and its connecting part.
References:
Baidu Encyclopedia-Fire Control spray head