NOZZLE FOR SPRAYING LIQUID, ESPECIALLY WATER IN A SNOW PRODUCTION CANNON

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The invention relates to a nozzle for spraying liquid, especially water in a snow production cannon. The nozzle consists of a cylindrical body (1) and a cap nut (2) having an axial spraying hole (5) connected from inside by means of an inlet cone (6) to a vortex chamber (7). Between the body (1) and the nut (2) a swirl insert (4) is mounted. The insert divides a fluid supply channel (9) having a partition wall (8) with at least two vortex channels (10). The swirl insert (4) has a flange (11) which fixes the insert axially between the nut (2) and the body (1) through a front (12) and a rare (13) sealing rings, and both of said rings have circular cross-sections. The front sealing ring (12) is mounted in a rectangular groove made on the face of the swirl insert (4) tangent to the face of the nut (2). The rear sealing ring (13) is mounted in a semicircular socket (15) made at the inner corner of the rear surface of the flange (11). From the side of the body (1) the rear sealing ring (13) is encircled by a quadrant-of-a-circle socket having a cone input. In the position of full tightening of the nut (2) an axial deformation of the rear sealing ring (13) is from (20) to 40% of the diameter of its cross-section, and the dimension of the gap between the face of the flange (11) and the face of the body (1) is no greater than the deformation. The rear sealing ring (13) is made of elastomer having hardness of 60 - 90 IRHD and its hardness is greater than the hardness of the front sealing ring (12).