DEVICE TO GENERATE GAS LIQUID MIXTURE AND FIRE EXTINGUISHING PLANT SPRAYER Russian patent published in 2011 - IPC B05B7/08 A62C31/02 

FIELD: fire safety.

SUBSTANCE: in the device for generation of a gas liquid mixture in a fire extinguishing plant the body is equipped additionally with an attachment in the form of a cylindrical bushing with a central hole for installation of a siphon tube and an external thread for its fixation in the neck of the reservoir with fire extinguishing liquid. In the attachment there are through inclined holes, which pass from one end surface to the other with arrangement at one end of inlet holes that communicate with the inlet chamber. At the other end there are outlet holes that ensure swirling of the working gas. Diameters of attachment holes ensure total volume of gas passing through them equal to the volume of gas passing through an inclined hole, which communicates the gas chamber with the inlet chamber. Besides, in the sprayer of the fire extinguishing agent the body is made as a cylindrical staged body. Nozzles are formed by channels made in the form of a truncated cone with D_in= 1.3 D_in with arrangement of its top in direction of the fire extinguishing agent flow with arrangement of channels at the end and side surfaces of the body. Axes of coupled pairs of nozzles are arranged at the angle (90±1)°. Number of pairs of nozzles is less or equal to 12 with their arrangement in the quantity of ≤6 at two opposite sides of the body. The angle of nozzles inclination relative to the axis of the body symmetry makes (20±3)°. The point of nozzle channel axes meeting is selected at the distance of 3.4±0.4 of the outer diameter of the nozzle from the outer side wall of the body.

EFFECT: higher extent of fire extinguishing liquid spraying to form a more finely dispersed gas liquid mixture, which accelerates fire extinguishing as the fire extinguishing mixture components consumption reduction.

2 cl, 4 dwg