CENTRIFUGAL DRENCHER NOZZLE Russian patent published in 2022 - IPC A62C31/02 

FIELD: fire protection.

SUBSTANCE: centrifugal drencher nozzle belongs to fire-fighting equipment and can be used in fire extinguishing installations for fire protection in residential premises, ensuring uniform distribution of the liquid flow at an operating pressure of 0.05 MPa. The centrifugal drencher nozzle is made in the form of a hollow housing, which has an inlet lower part with an external connecting thread, has an outlet part inside the housing made in the form of a diffuser, while inside the housing the inlet lower part is made in the form of a confuser, in which a cast swirler with a cast insert placed in it is located concentrically relative to the axis of the housing, above the swirler, a chamber is made in the housing, the exit from the chamber is made through the neck, which is characterized by a ratio of the neck height to its diameter equal to 1:5, the neck is smoothly coupled with the diffuser, the cast swirler is made in the form of a hollow cast sleeve, which has a left trapezoidal four-way thread on the outer lower cylindrical part, the lower cylindrical part of the cast swirler smoothly passes into the upper spherical part, which is mated with the upper cylindrical part, inside the lower cylindrical part of the cast swirler is a cylindrical cavity, passing into the middle part of the cast swirler into a cavity made in the form of a truncated cone, the upper part of this cone-shaped cavity is connected to the chamber by means of a diffuser, a cast insert is installed in the cylindrical cavity of the cast swirler, made in the form of a central two-way guide part with the right direction for the flow of the fire extinguishing agent, while each stroke of the guide part is made in the form of a lower inclined plane, passing into a horizontal step, which passes into the upper inclined plane.

EFFECT: expansion of the range of fire extinguishing means.

1 cl, 5 dwg