SU1253237A1 - Atomizer - Google Patents

Description

The invention relates to devices for squeezing liquid, mainly fuel in the combustion chambers of heat and power units, and can be used to incinerate the organic heat carrier from a nuclear heating plant.

The aim of the invention is to improve the quality of lumping and reduce energy consumption.

.-Figure 1 shows the proposed nozzle, a longitudinal section; Figure 2 shows a puck with guide channels, a longitudinal section; FIG. 3 shows the guide channels, top view.

The nozzle contains a cylindrical body 1 and a central fuel pipe 2 connected to the coaxial insert 3, which forms with the case 1 an annular gap 4 for supplying a sprayer and having an input 5 at the entrance with guide channels 6 for feeding fuel into the cavity of the insert 3, made in an Archimedes spiral and at the outlet there is a nozzle 7, and between the nozzle 7 and the said washer 5 additional shields 8 and 9 are placed, equipped with guide channels 10 and 11, made in an Archimedes spiral and connected to the annular gap 4. The side walls of the washers 5, 8 and 9 about generators of guide channels 6, 10 and 11 are formed with varying radius adjustment channels, increasing in the direction of the nozzle 7.

The operation of the nozzle is carried out as follows.

The fuel through the central pipe 2 is fed into the guide channels 6 shtya

50

five

5 and a swirling flow after it enters the cavity of the insert 3. The atomizer from the source enters the annular gap 4, where it is divided into two streams, one of which enters the cavity of the insert 3 through the guide channels 10 of the washer 8 and the other through the guide channels 11 9, the nebulizer flow in the channels 10 may twist or in the same direction as the fuel flow, and in the channels 11 in the opposite direction, or both streams may be twisted in the same direction. When the insert 3 enters the cavity, the fuel and atomizer flows create pulsations leading to the occurrence of ultrasonic vibrations. At the exit of the insert 3, the gas-fuel stream is additionally dispersed by the second stream of the atomizer, and a higher-frequency and high-quality atomization and formation of supercritical flow rates occur. The shape of the side walls of the washers 5, 8 and 9, which form the guide channels 6, 10 and 11, is made with a variable height of the channels 10 and 11 with a radius increasing in the direction of the nozzle 7, provides the jets at a small angle and at the same time It does not give the mixture an axial component of velocity, and these processes occur simultaneously, with this, at the exit of the nozzle 7, both the further propagation of ultrasonic vibrations and the spread of the spray pattern occur.

Rig. 2

VNIIPI Order 4939

Random polygons pr-tie, Uzhgorod, st. Project, 4

(Rae.Z

Circulation 494

Subscription

Claims (1)

An INJECTOR containing a cylindrical housing and a central fuel pipe connected to a coaxial insert forming an annular gap with the housing for supplying a spray atom and having a washer at the inlet with guide channels for supplying fuel to the insert cavity, made in an Archimedes spiral, and an nozzle at the exit, wherein between the nozzle and said washer there are additional washers equipped with guide channels made in a spiral of Archimedes and connected to the annular gap, about. characterized in that, in order to improve the quality of sawing and reduce energy consumption, the side walls of the washers that form the guide channels are made with a radius-variable radius of channels increasing in the direction of the nozzle. £ SU .... 1253237 A1 Spray Figure 1