RU2545256C1 - Centrifugal wide-flare sprayer - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: centrifugal wide-flare sprayer comprises a casing with a vortex chamber and a sprayer insert, at that the casing is made with an inlet pipe having a hole, with an inlet cylindrical chamber coaxial to the pipe, a vortex chamber installed coaxially with the inlet chamber and made in the form of a cylindrical cup provided with at least three tangentially located holes on the side surface, their axes are tangential to the vortex chamber; the sprayer insert out of hard materials is installed coaxially with the vortex chamber, inside the insert there are two calibrated holes located in series and coaxial to each other and to the cylindrical surface of the vortex chamber: cylindrical hole and cone hole acting as diffuser increasing cone angle at the flare top of liquid spraying; to the bottom of the cylindrical sleeve in the vortex chamber from the side of the sprayer insert the screw feed with screw blade is secured axisymmetric and coaxially, the blades are directed opposite to direction of the flow vortex in the vortex chamber.

EFFECT: higher efficiency of spraying.

2 dwg

Description

The invention relates to means for sawing liquids, solutions.

The closest technical solution to the claimed object is the nozzle according to the patent of the Russian Federation No. 2500482, F02C 7/24, comprising a housing with a swirl chamber and a nozzle insert (prototype).

A disadvantage of the known nozzle is that it does not provide a wide spray pattern due to the weak swirl of the fluid inlet.

The technical result is an increase in spraying efficiency by increasing the spray pattern.

This is achieved by the fact that in a wide-flange centrifugal nozzle containing a housing with a swirl chamber and a nozzle insert, the housing is made with an inlet pipe having an opening coaxial with it of the inlet cylindrical chamber, a swirl chamber located coaxially with respect to the inlet chamber and made in in the form of a cylindrical glass having at least three tangentially located openings on the side surface, the axes of which are located tangentially with respect to the swirl chamber, coaxially with the swirl chamber The nozzle insert made of solid materials is located, and inside the insert there are two calibrated holes sequentially arranged and coaxial to each other and to the cylindrical surface of the turbulence chamber: a cylindrical hole and a conical hole that functions as a diffuser, increasing the cone angle at the top of the liquid spray, to the bottom a cylindrical glass of the swirl chamber, from the nozzle insert side, axisymmetrically and coaxially, a screw with screw blades is attached, the direction of which is s back in the flow direction of twist swirl chamber.

In FIG. 1 shows a general view of a nozzle for spraying liquids; FIG. 2 - section of the turbulence chamber along the tangential multichannel input.

A wide-angle centrifugal nozzle consists of a housing 1 with an inlet pipe 4 having an opening 3, an inlet cylindrical chamber 9 coaxial with it, a swirl chamber 8 located coaxially with respect to the inlet chamber 9 and made in the form of a cylindrical cup 2 having, on the side surface, at least three tangentially located holes 10, the axes of which are located tangentially with respect to the swirl chamber 2, i.e. there is a multi-channel tangential input.

Coaxial to the swirl chamber 2 is a nozzle insert 5 made of solid materials: tungsten carbide, ruby, sapphire. Inside the insert there are two calibrated openings arranged in series and aligned with each other and the cylindrical surface of the turbulence chamber 8: a cylindrical hole 6 and a conical hole 7, which serves as a diffuser that increases the cone angle at the apex of the liquid spray. To the bottom of the cylindrical cup 2 of the swirl chamber 8 from the side of the nozzle insert 5, axisymmetrically and coaxially, a screw 11 is attached with screw blades 12, the direction of which is back to the direction of the flow twist in the swirl chamber 8.

Wide-angle centrifugal nozzle for spraying liquids works as follows.

The fluid is fed through the inlet 3, then passes into the inlet cylindrical chamber 9 and enters through a multi-channel tangential input into the swirl chamber 8, made in the form of a cylindrical cup 2. A rotating fluid flow from the swirl chamber 8 passes through a calibrated cylindrical hole 6 of the nozzle insert 5, conical hole 7, resulting in the formation of a spray of liquid, the root angle of which is determined by the angle at the apex of the cone of the conical hole 7, which performs the function d ffuzora. The screw 11 with screw blades 12 increases the fineness and size of the spray torch.

Claims (1)

A wide-angle centrifugal nozzle containing a housing with a swirl chamber and a nozzle insert, the housing being made with an inlet pipe having an opening coaxial with it of the inlet cylindrical chamber, a swirl chamber located coaxially with respect to the inlet chamber and made in the form of a cylindrical glass having the lateral surface of at least three tangentially located holes, the axes of which are located tangentially with respect to the swirl chamber, and nozzles are located coaxially with the swirl chamber insert made of solid materials, inside the insert there are two calibrated openings arranged consecutively and coaxial to each other and to the cylindrical surface of the swirl chamber: a cylindrical hole and a conical hole that acts as a diffuser, increasing the cone angle at the top of the spray jet, characterized in that towards the bottom a cylindrical glass of the swirl chamber, from the nozzle insert side, axisymmetrically and coaxially, a screw with screw blades is attached, the direction of which is about in the direction of the twist of the flow in the swirl chamber.

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