Rotary screen type big-flow fire extinguishing sprayer

Abstract

The invention provides a rotary screen type big-flow fire extinguishing sprayer, which comprises a tube socket, a support bracket, a flow divider, a shaft bearing water dividing wheel, and vortex current blades, the upper tube socket is connected and fixed with the fire extinction water supply pipe, the lower portion is in running fit with the shaft bearing, the water dividing wheel is provided with a cone shaped flow divider over the center and is mounted and fixed with the support bracket, the water dividing wheel is provided with a plurality of bar-shaped sieving ports radially outwards from the axes. The sprayer can be in combination control with high altitude flame detector and solenoid valve, which solves the problem of small radius of fire extinction sprayer sprinkling and delayed unlatching.

Description

technical field

[0001] The invention relates to a fire extinguishing device accessory for fire fighting, in particular to a rotary sieve type large flow fire extinguishing nozzle device used in a structure, which is suitable for being installed in a structure with a large space and used as a fire sprinkler for fire extinguishing . Background technique

[0002] The fire extinguishing nozzles being used in the market now include old-fashioned temperature-sensitive closed nozzles and open centrifugal nozzles. The temperature-sensitive closed nozzle uses a glass bubble of 68 degrees to absorb the temperature of the fire combustion airflow, so that when the liquid in the bubble expands to a critical point, it begins to explode and open the valve plug to spray water to extinguish the fire. Its disadvantage is that the bubble explosion time lags behind obviously. Fire; the Achilles’ heel of the open centrifugal sprinkler head is that the torque of the two side thrust nozzles of th...

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