SU1321475A1 - Centrifugal-jet nozzle - Google Patents

Abstract

The invention relates to devices for dissolving liquids into which a liquid is supplied under pressure, and can be used in heat and mass transfer processes, for washing surfaces, and also for evaporation by evaporation of solvent from a superheated solution. The goal is to expand technological capabilities. For this, the centrifugal jet nozzle is equipped with primary and secondary end disks (TD) with sector leads and primary and secondary fixed disks (LP) with holes. Additional TD and ND installed on the opposite main TD and ND side. The nozzle body is made with tangential holes of separate fluid supply to the ends of the impeller blades, and the body cavity is made of variable section. NDs are side Kirskuyu the number of holes which corresponds to the number of tangential holes of the separate supply of fluid, while the sector cuts on the TD are shifted by 50-70 relative to one another. The presence of several outlet openings on the two sides of the nozzle allows to significantly reduce the hydraulic resistance, while maintaining a high dispersion and uniform spray pattern. 4 il. with fO (L with

Description

The invention relates to devices for squeezing liquids under pressure and can be used, for example, in heat and mass transfer processes, to evaporate a solvent from a superheated solution, as well as to wash surfaces.

The aim of the invention is the expansion of technological capabilities.

This goal is achieved by reducing the hydraulic resistance of the nozzle, as well as by creating a torch pulsing in longitudinal and transverse sections.

Figure 1 shows the scheme of the nozzle; figure 2 - section aa in figure 1; on fig.Z - view B in figure 2; Fig. 4 is the same, the disks are in different working positions with the end caps removed.

The nozzle contains a hollow body 1, a tangential pipe 2 of fluid injection connected with it, an impeller 3 with radial blades 4 and an end disk 5 with sector notches 6 in it, while the impeller 3 is rotatably mounted in the housing 1. In addition, the nozzle contains a fixed disk 7 with holes 8, installed with a minimum gap between the front disk 5, and an additional end disk 9 with pieces 10 and a stationary disk 11 with holes 12 installed from the opposite side of the disks 5 and 7. The body 1 of the barrel is made with tangential openings 13 for separately supplying fluid to the ends of the radial blades -4 of the impeller 3, and the cavity 14 of the housing 1 is made of variable section, the fixed discs 7 and 11 being lateral cracks, and the number of holes 8 and 12 they correspond to the number of tangential holes 13 in the housing 1, while the sector cuts 6 and 10 of the end disks 5 and 9 are offset by 50-70 relative to one another.

The nozzle works as follows.

Fluid (or overheated fluid enters the tangential nozzle 2 of the fluid inlet into the variable section cavity 14 associated with the internal volume of the impeller 3 nozzles tangential holes 13. The tip 3 rotates under the action of the injected fluid and rotates the end 5 disks attached to the impeller 5

and 9 with sector cuts 6 and 10. When rotating, disks 5 and 9 periodically block the outlet openings 8 and 12 in the fixed disks 7 and 11, closing the nozzle body and being traction cranks, due to the sector cuts, resulting in a pulsating multijet torch finely dispersed liquid.

Offset sector cuts 6 and 10 on rotating 3 with the impeller 3 disks 5 and 9 on 50-70 on one of them relative to the other allows to ensure uniform spray on both

nozzle side. The angle of sector cuts 6 and 10 is chosen in the range of 50–70, since at less than 50

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five

its capacity decreases at the corners, and for large 70 values.

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The dispersion of the particle is deteriorated due to a decrease in the pulse frequency of the flame.

As a result of the arrangement of the rotating disks 5 and 9 with minimum gaps relative to the disks 7 and 11, hydraulic losses due to friction, rotation and mixing of the liquid are reduced. The torch of the sprayed liquid at the same time has a pulsating character in both the longitudinal and transverse section of the fc.

The presence of several outlet openings 8 and 12 in the disks 7 and 11 provides an increase in the flow capacity of the nozzle, which is especially important when spraying overheated liquids.

Such a design of the jet centrifugal nozzle allows to significantly reduce its hydraulic resistance and to ensure high dispersion and uniformity of dispersion.

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Claims (1)

Formula invented and Jet-centrifugal nozzle containing a hollow body, tangential inlet of the void input connected to it, rotatably located inside the body of the impeller, having radial blades and face disc with sector cuts and fixed with a minimum clearance relative to the face disk a fixed disk with holes, o t is characterized by the fact that, with the aim of expanding technological capabilities, it is equipped with additional 3132U an end disc with sector angular and stationary disc with holes installed on the side opposite to the main discs, the nozzle body being made with tangent 5 separate apertures of fluid supply to the ends of the blades of the impeller, the cavity of the body upper 754 on a variable section, and the stationary discs are side covers, the number of openings of which corresponds to the number of tangential openings of the separate fluid supply, while the sector cuts on the front discs are offset by 50-70 relative to one another. u 2 12 FIG L. Editor A.Vorovich Compiled by Y. Kovalevsky Tehred L. Oliyn with V. Corrector, But ha Order 2698/5 Circulation 645Subscription VNIISH USSR State Committee on rGzobreteniya and discoveries 113035, Moscow, -35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, Projecto st., 4