SU1666199A1 - Swirler for nozzle - Google Patents

Abstract

The invention relates to a technique for spraying liquid and other media and can be used for spray drying in the building materials industry, the chemical industry and other fields for burning liquid and pulverized fuels in the power industry and other fields. The goal is to increase the life of the swirl. For this, adjacent channels in the nozzle swirler are made open at opposite ends. After the working channels are worn, the swirler is turned over by 180 °, for which the nozzle is disassembled. This operation is combined with a regular replacement of the nozzle, which wears out 5 to 10 times faster than the swirler channels. As a result, backup channels occupy a working position, i.e. All channels do not work simultaneously, but in turn. 4 il.

Description

The invention relates to a technique for spraying liquid and other media, especially those with abrasive inclusions, and can be used for spray drying in the building materials industry, the chemical industry and other industries, for burning liquid and dusty fuels in the power industry and other industries.

The purpose of the invention is to increase the service life of the swirler.

FIG. 1 shows the nozzle swirler, general view; figure 2 is the same, top view; on fig.Z - scan the side surface of the swirl; Fig. 4 shows a centrifugal mechanical nozzle with a swirler (the channels are conventionally developed in the section plane), a longitudinal section.

Swirl 1 nozzle is made in the form of a cylinder and contains 2 inclined channels 3 and 4 located on its lateral surface, open from the ends 5. Moreover, adjacent channels 3 and 4 are made open with

opposite ends 5. The total number of channels 3 and 4 is twice as large as the worker, i.e. half of channels 3 and 4 are backup (channels 4).

The swirler 1 is located n the axis of the mechanical centrifugal nozzle 6 (Fig. 4) in front of the swirl chamber 7 and the nozzle 8 (in the direction of the sprayed material). The swirler 1 is fixed by a nut 9 between the sleeves 10 and 11. The sleeves 10 and 11 serve to protect the body 12 of the nozzle or abrasive wear. In the sleeve 10, covering the swirl 1, from the side of the nut 9 is made inside the end recess

-13, and at the end of the nut 9 adjacent to the vortex of section 1, slots 14 are made. By means of the recess 13 and slots 14, the working channels 3 opened into the swirl chamber 7 are connected to the supply pipe 15. The spare channels 4 are not connected with camera 7

turbulence and therefore do not participate in the nozzle.

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The mechanical centrifugal nozzle with the witness 1 operates as follows.

The sprayed medium, for example, a clay slip, under a pressure of 1.7 MPa flows through pipe 15. slots 14 and undercut 13 into working channels 3. Of these, the slip enters chamber 7 of the vortex, where, due to the inclination of channels 3, it acquires a rotating motion then exits through nozzle 8, sprayed.

After the working channels 3 are worn, the swirler 1 is turned over 180 °, for which the nozzle 6 is disassembled. This operation is combined with the regular replacement of the nozzle 8, which wears out 5-10 times faster than

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FIG. 2

Editor A. Casard

Compiled by A. Chal-Boru Tehred M. Morgenthal

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channels 3 swirl 1. As a result, backup channels 4 occupy the working position.

Due to the fact that the neighboring channels of the swirler are open from its opposite ends, all the channels do not operate simultaneously, but in turn. Therefore, the life of the swirler on abrasive media is increased.

Claims (1)

Claims of the Invention A swirl nozzle containing channels open at the ends, characterized in that, in order to increase the swirling life, the adjacent channels are made open at opposite ends. J 15 FIG L Proofreader O. Kundrik