SU1498897A1 - Apparatus for atomizing liquid in gas flow - Google Patents

Abstract

The invention relates to the field of inkjet technology, mainly to devices for spraying various liquids in a gas stream. The aim of the invention is to reduce the energy costs of spraying a liquid by reducing hydrodynamic losses. The device contains a gas pipeline 1 with a radial channel (K) 2 in its wall for supplying liquid and a protective element in the form of a notch in the wall of pipeline 1, the rear surface (TP) 3 of which from the K 2 side is flat, oriented perpendicular to the longitudinal axis 4 pipeline 1 and is displaced from the axis K 2 against the gas flow to a distance L equal to 0.5-1.0 diameters D 2. One of the boundaries of the TP 3 is located at the level of the output section K 2 of the other, opposite to it, removed from the output sections K 2 in the direction perpendicular to the axis 4 of the pipe of the gage 1 at a distance H equal to 0.8 of the diameter D К 2. The axis of the latter is located in the plane intersecting TP 3, and the distance between the borders of the latter, lying on opposite sides of the intersection line, is equal to two diameters D К 2. By pipeline 1 gas is supplied. The gas flow, around the TP 3, forms behind it a zone of aerodynamic shading where a liquid is injected through K 2. Thus, by preventing the jet of the injected fluid from deforming upon exiting K 2, by making the security element in the form of a notch, a reduction in the energy costs of spraying the liquid in the gas stream is achieved. 1 il.

Description

The TP 3 forms behind it an aerodynamic shading zone where liquid is injected through K 2. Thus, by preventing the jet of fluid being injected from deforming

at the exit from K 2 due to the implementation of the protective element in the form of a notch, a reduction in the energy consumption for spraying the liquid in the gas stream is achieved. 1 il.

The invention relates to inkjet technology, mainly to devices for spraying various liquid media in gas pipelines.

The purpose of the invention is to reduce the energy costs of splashing the liquid by reducing hydrodynamic losses.

The drawing shows devices for spraying a liquid in a gas stream, a longitudinal section.

The device comprises a gas pipeline 1 with a radial channel 2 supplying liquid in its wall and a protected element whose rear surface 3 on the channel 2 side is flat, oriented perpendicular to the longitudinal axis 4 of pipeline 1 and shifted from the axis of channel 2 against the direction of gas flow 1, equal to 0.5-1.0 diameters d of channel 2. One of the boundaries of the solid surface 3 is located at the level of the output section of channel 2, the other opposite to it, is removed about the first output section of channel 2 in the direction perpendicular to 4 th axis of duct 1, by a distance equal to the diameter d of 0.8 channel 2. The axis of the latter is located in a plane intersecting the back surface of the i 3, and the distance; between the borders of the latter, lying on opposite sides of its intersection line with the plane, is equal to two diameters d of channel 2. The protective element is designed as a notch 5 in the wall of pipeline 1.

During operation of the device, pipeline 1 supplies gas, and the gas flow, flowing around the back surface 3 of the recess 5, forms behind it an aerodynamic shadow zone, where fluid is injected through channel 2. In this case, the cylindrical root section of the jet of fluid is protected from the force effect of the gas flow, which prevents the jet from deforming

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when leaving channel 2 and, therefore, reducing the effective area of channel 2, which determines the decrease in fluid flow. The implementation of the protective element in the form of a notch 5 in the wall of the pipeline 1 reduces the hydrodynamic resistance to the gas flow.

Thus, by making the security element in the form of a notch 5 in the wall of the pipeline 1, a reduction in the energy expenditure for mixing the liquid in the gas stream is achieved.

Claims (1)

Invention Formula A device for spraying a liquid in a gas stream, comprising a gas pipeline with a radial liquid supply channel formed in its wall and a protective element whose rear surface on the channel side is flat, oriented perpendicular to the longitudinal axis of the pipeline and displaced from the channel axis against the gas flow direction A distance equal to 0.5-1.0 channel diameter, one of the boundaries of the back side is located at the level of the output section of the channel, the other, opposite to it, is removed from the output section to in the direction perpendicular to the axis of the pipeline, for a distance equal to 0.8 of the channel diameter, the axis of the latter is located in a plane intersecting the back surface, and the distance between the borders of the latter, lying on opposite sides of its intersection line with the plane channel diameters, characterized in that, in order to reduce the energy costs of spraying a liquid by reducing hydrodynamic losses, the protective element is designed as a recess in the wall of the pipeline.