RU2489648C1 - Vortex nozzle - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: vortex nozzle comprises a vessel with an auger, coaxially installed in the lower part of the body, and a socket piece arranged in the upper part of the vessel with a cylindrical hole for liquid supply connected with a diffuser, which is axisymmetric to the vessel and the socket piece, the auger is pressed into the vessel to form a conical chamber arranged above the auger, in alignment with the diffuser, and connected to it in series, besides, the auger is made as solid, and the outer surface of the auger represents at least a single-stage helical groove with the right or left thread. The end surface of the auger either matches with the end surface of the lower part of the vessel or protrudes beyond the end surface of the lower part of the vessel. The nozzle auger is made up of solid materials: tungsten carbide, ruby or sapphire.

EFFECT: increased efficiency of spraying and simplified design.

4 cl, 2 dwg

Description

The invention relates to means for spraying liquids and solutions and can be used in engine building, chemical and food industries.

The closest technical solution to the claimed object is the nozzle according to the patent of Russian Federation No. 2339875, F02C 7/24 from 2007, comprising a housing with a screw coaxially located in the lower part of the housing and located in the upper part of the housing, a fitting with a cylindrical hole for supply fluid connected to the diffuser, axisymmetric body and fitting (prototype).

A disadvantage of the known nozzle is the relatively low degree of atomization and design complexity.

EFFECT: increased spraying efficiency and simplified design.

This is achieved by the fact that in a vortex nozzle containing a housing with a screw coaxially located in the lower part of the housing and located in the upper part of the housing, a nozzle with a cylindrical fluid inlet connected to a diffuser, an axisymmetric housing and fitting, the screw is pressed into the housing with the formation of a conical chamber located above the screw, coaxial to the diffuser, and connected with it in series, moreover, the screw is made continuous, and the outer surface of the screw is at least a single-entry screw channel ku right or left-threaded, the end surface of the screw coincides with the end surface of the lower housing.

Figure 1 shows a General view of the nozzle for spraying liquids, figure 2 is a variant of the nozzle with the screw extended beyond the end of the housing.

The vortex nozzle (Fig. 1) contains a housing 1 with a screw 7 coaxially located in the lower part of the housing and located in the upper part of the housing, a nozzle 2 with a cylindrical hole 3 for supplying fluid connected to a diffuser 4, an axisymmetric body 1 and a nozzle 2. For tight connection of the housing 1 with the fitting 2, a sealing gasket 5 is provided. The screw 7 is pressed into the housing with the formation of a conical chamber 6 located above the screw 7, coaxially with the diffuser 4, which is connected in series with it. The screw 7 is made continuous, and the outer surface of the screw is at least a single-pass screw groove 8 with right or left thread, and the end surface of the screw 7 coincides with the end surface of the lower part of the housing 1.

A variant of the nozzle, in which the end surface of the screw 7 protrudes beyond the end surface of the lower part of the housing 1 (figure 2). The screw 7 in this case can be fixed in the housing by means of screws 9. The screw 7 of the nozzle is made of solid materials: tungsten carbide, ruby, sapphire.

Vortex nozzle for spraying liquids works as follows.

The fluid is supplied through a cylindrical hole 3 into the diffuser 4, and from it into the conical chamber 6, from which it flows under pressure into the screw external cavity of the screw 7. A rotating fluid flow in the external screw cavity of the screw forms a vortex movement, with additional crushing of liquid drops due to turbulization of the outlet stream, and a finely divided rotating stream exits the nozzle with a wide rotating torch of the atomized liquid (solution).

When the pressure supplied through the cylindrical hole 3 of the liquid in the range of 6 ÷ 9 MPa provides spraying from 400 to 1000 kg / h of liquid. The nozzle is easy to manufacture and maintain.

Claims (4)

1. A vortex nozzle comprising a housing with a screw coaxially located in the lower part of the housing and a nozzle located in the upper part of the housing with a cylindrical fluid inlet connected to the diffuser, an axisymmetric housing and fitting, characterized in that the screw is pressed into the housing to form a conical chamber located above the screw, coaxial to the diffuser, and connected in series with it, moreover, the screw is solid, and the outer surface of the screw is at least a single-screw helical groove with right or left thread. 2. The vortex nozzle according to claim 1, characterized in that the end surface of the screw coincides with the end surface of the lower part of the housing. 3. The vortex nozzle according to claim 1, characterized in that the end surface of the screw protrudes beyond the end surface of the lower part of the housing. 4. The vortex nozzle according to claim 1, characterized in that the nozzle screw is made of solid materials: tungsten carbide, ruby or sapphire.

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