RU2544626C1 - 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, i.e. there is a multi-channel tangential input; the sprayer insert with the outer diameter D₁ is installed coaxially with the vortex chamber, inside the insert there are three calibrated holes located in series and coaxial to each other and to the cylindrical surface of the vortex chamber: a conical hole with the diameter D of the bottom base of truncated cone, a central cylindrical hole with the diameter d₂ and an output conical hole with the diameter d₃ of the bottom base of the truncated cone, at that diameter d₂ of the central cylindrical hole of the sprayer insert is equal to the diameter of top base of the truncated cone of the conical hole and to the diameter of the top base of the truncated cone of the output conical hole. It is additionally equipped by a filter to clean water from mechanical impurities which is made as a ring and set coaxially to the cylindrical surface of the vortex chamber and adjoins its outer cylindrical surface without gaps closing the holes provided tangentially in the vortex chamber. The filter can be fastened by a yoke or the filter is made as a cup put-on on the outer surface of the vortex chamber without gaps.

EFFECT: higher efficiency of spraying.

2 dwg

Description

The invention relates to means for spraying liquids, solutions.

The closest technical solution to the claimed object is the nozzle according to the patent of the Russian Federation No. 2497043, 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 insufficient degree of twist of the input fluid stream.

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 nozzle having an opening coaxial with 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 holes on the side surface, the axes of which are located relative to the swirl chamber, i.e. there is a multi-channel tangential input, and a nozzle insert with an external diameter D ₁ is located coaxial with the swirl chamber, three calibrated holes are made sequentially located and coaxial with each other and the cylindrical surface of the swirl chamber: a conical hole with a diameter D of the lower base of the truncated cone, a central cylindrical hole with a diameter d ₂ and an outlet tapered bore diameter d ₃ of the lower base of the truncated cone, the diameter d ₂ of the central cylindrical otve The nozzle insert is equal to the diameter of the upper base of the truncated cone of the conical hole and the diameter of the upper base of the truncated cone of the outlet conical hole, it is additionally equipped with a filter for purifying water from mechanical impurities, which is made in the form of a ring and is located coaxially to the cylindrical cylindrical surface of the swirl chamber and adheres without gaps to its outer cylindrical surface, overlapping the openings tangentially located in the swirl chamber, while attaching the filter can tsya clamp means or filter is shaped as a sleeve, worn without gaps to the outer surface of the swirl chamber.

Figure 1 shows a General view of the nozzle for spraying liquids, figure 2 is a cross section of the swirl chamber along the tangential multi-channel input.

A centrifugal wide-torch 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 11 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 one-channel tangential input.

Coaxial to the swirl chamber 11 is a nozzle insert 5 with an outer diameter D ₁ made of solid materials: tungsten carbide, ruby, sapphire. Three calibrated holes are made sequentially located and coaxial to each other and to the cylindrical surface of the turbulence chamber 11 inside the insert: a conical hole 6 with a diameter D of the lower base of the truncated cone, a central cylindrical hole 7 with a diameter of d ₂ and an exit conical hole 8 with a diameter of d _{3 of the} lower base of the truncated cone. The diameter d _{2 of the} central cylindrical hole 7 of the nozzle insert 5 is equal to the diameter of the upper base of the truncated cone of the conical hole 6, and also the diameter d _{2 of the} central cylindrical hole of the nozzle insert is equal to the diameter of the upper base of the truncated cone of the conical hole 6 and the diameter of the upper base of the truncated exit cone tapered bore 8.

Inside the liner 5, three calibrated holes are made sequentially located and aligned with each other and the cylindrical surface of the swirl chamber: a conical hole with a diameter D of the lower base of the truncated cone, a central cylindrical hole 7 with a diameter of d ₂ and an outlet conical hole 8 with a diameter of d _{3 of the} lower base of the truncated cone, while the diameter d ₂ of the central cylindrical hole of the nozzle insert is equal to the diameter of the upper base of the truncated cone of the conical hole 6 and the diameter of the upper wasps Hovhan frustoconical tapered outlet opening 8.

For the operation of the nozzle in optimal mode, the following ratios of its parameters are provided:

the ratio of the diameter d _{3 of the} outlet conical hole 8 of the nozzle insert 5 to the diameter d _{2 of the} central cylindrical hole 7 lies in the optimal range of values: d ₃ / d ₂ = 1.5 ÷ 2.5;

the ratio of the outer diameter D _{1 of the} nozzle insert 5 to the diameter D of the lower base of the truncated cone of the conical hole 6 of the insert 5 lies in the optimal range of values: D ₁ / D = 1.2 ÷ 1.8.

The nozzle is additionally equipped with a filter 12 for purifying water from mechanical impurities, which is made in the form of a ring (not shown in the drawing) and is located coaxially to the cylindrical surface of the swirl chamber 11 and adjoins without gaps to its outer cylindrical surface, blocking the openings 10 located tangentially in the swirl chamber 11.

In this case, the filter 12 can be fastened by means of a clamp (not shown in the drawing) or the filter is made in the form of a cup worn without gaps on the outer surface of the swirl chamber 11.

Centrifugal wide-angle 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 inlet through the openings 10 into the swirl chamber 11, made in the form of a cylindrical cup 2. A rotating fluid flow from the swirl chamber 11 passes through a calibrated conical hole 6 of the nozzle insert 5, the central cylindrical hole 7 and the exit conical hole 8 of the nozzle insert 5, as a result of which a spray of liquid is formed, the root angle of which is determined are the value of the angle at the apex of the cone of the outlet conical opening 8 of the nozzle insert 5.

The proposed design of a wide-torch nozzle with a central cylindrical hole diameter of 7 equal to 9 mm at a working fluid pressure of 150 ... · 250 kPa provides an opening angle of the water plume up to 150 ° and preserves the plume stability at a liquid pressure in front of nozzles of 40 kPa and higher, while the nozzle depends on the fluid pressure at the inlet inlet.

Claims (1)

A centrifugal wide-torch nozzle containing a housing with a swirl chamber and a nozzle insert, the housing being made with an inlet nozzle having an opening coaxial with 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 lateral surface, at least three tangentially located holes, the axes of which are located tangentially with respect to the swirl chamber, i.e. there is a single-channel tangential input, and a nozzle insert with an external diameter D ₁ is located coaxially with the swirl chamber, three calibrated holes are made sequentially located and coaxial with each other and the cylindrical surface of the swirl chamber: a conical hole with a diameter D of the lower base of the truncated cone, a central cylindrical hole with a diameter d ₂ and an outlet tapered bore diameter d ₃ of the lower base of the truncated cone, the diameter d ₂ of the central cylindrical otve The nozzle insert is equal to the diameter of the upper base of the truncated cone of the conical hole and the diameter of the upper base of the truncated cone of the outlet conical hole, characterized in that it is additionally equipped with a filter for purifying water from mechanical impurities, which is made in the form of a ring and is located coaxially to the cylindrical surface of the swirl chamber and fits without gaps to its outer cylindrical surface, overlapping the openings tangentially located in the swirl chamber, while fixing fi tra can be performed by a clamp or the filter is shaped as a sleeve, worn without gaps to the outer surface of the chamber swirls.

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