SU1215446A1 - Electro-gas burner - Google Patents

Description

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The invention relates to the energy industry; p can be used to produce a high-temperature jet of combustion products, for example, for treating metals.

The aim of the invention is to increase reliability.

Fig. 1 shows an electric steering burner, longitudinal section; in fig. 2 is a cross section of LL in FIG. .

The electrostatic torch contains a vortex chamber 1 with an air breather 2, which forms a sonlo 3, an electrode 4, connected with an electric source. current, while the electrode is made in the form of a perforated cylinder 6, with one side of which there is a copus 7 with a central hole 8 with:) osio tbopt-Jiipyiou CMy coimy 3, a. with a friend; sides 6 cTJ on insulator 9 smothyroiana cover 0 s. nozzle I n candle eagi-h 12-, vortex chamber I ustrgovleia U housing 13 with a flange 14 and fitting 15 15 gud, under the compressed oxidant, and behind the nozzle 3 an anode 16 is installed.

The vortex chamber 1 is made conical, and its equiration 2 is positioned and removed. B. the cross section of the vortex chamber 1, and the forming nozzle 3 are located at a distance of 2.

The vortex chamber 1 is made with the angle of opening 7-14. In the direction of the electrode 4, the length of the windows from the section of the chamber vortex to the electrode is .2-6 diameters of this section, the swirler 2 is located in the smaller section of the BiixpeBoii camera and The bore of its bore is 0.07-0.11 of the area of the smaller cross section of the vortex chamber, (| OP UFORA SILO 3 is coaxially vortexed) 2, and the pancake of its bore is 0.25-0.5 the area of the smaller cross section of the vortex chamber 1, the area of the transverse section is perfused th schshindra 6 is 2.5-3 mepshego square cross section of the vortex chamber 1J and its length is 1,5g2 smaller cross-sectional diameter of the vortex chamber

The electrogas burner works as follows.

The compressed oxidant enters through the fitting 15 into the cavity formed by the vikrevo chamber f and the housing 13, then through the swirler 2 into the vortex

5446 2

where two swirling PIs with a radial gradient of static pressure are formed, moving in the direction of electrode 4. In the next

A peripheral stream is generated in the vortex chamber, moving in the direction of the perforated cylinder 6, through the openings of which enters the inside of the electrode 4, and the axial flow moves in the direction of

forming nozzle 3.

By means of the nozzle 11, liquid or gaseous fuel is fed into the internal cavity formed by the lid 10 and the inner surface of the perforation of the cylinder b. The high degree of swirling of the oxide oxide body is responsible for the occurrence of latent-1pl of radial pressure gradients.

0 In the process of turbulent mass transfer in a field with a high pressure gradient. Energy transfer from the near-axis vortex to the peripheral one occurs. The near-wall layers significantly heat up 5 s, which leads to O (} x1) effective evaporation of elements of liquid fuel or heating of gaseous elements located in this zone. The prepared combustible mixture under) 1O1 is emitted by electric light 401: 12 installed in valve 10. As a result of the combustion process, 1 second: the mixture at the exit of the cone 7 te of the combustion products reaches 2000-3000 s B depending on the type of fuel and oxidizer. With such a nonsure, dissociation of the products of the combustion occurs with the formation of charged particles. Ianrimer, the dissociation of CO stapopits noticeable at a temperature of 1500 s, was 0.8%, then it quickly grows, reaching 4% at a temperature of 19% - at a temperature of 2500 ° C.

Further, anode 16 and electrode 4 are supplied with an electrical voltage. The dissociation of products 1 of the axis of the axial vortex, which plays the role of a conductor, is electric current, resulting in ionization of the combustion components, leading to an increase in the conductivity of the axial vortex and a high temperature of the low-temperature plasma. Through the forming nozzle 3

5, a plasma with a critical speed of the order of 1000 m / s or more is ejected onto the workpiece, the manufacturing process.

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Compiled by Yu, Sukov Editor L, Orlova Tehred O.Bashnshina Corrector M. Samborska

Order 1898 Circulation 353, Subscription

, VNIIPI USSR State Committee for Inventions and Discoveries

113035, Moscow, F-35, Raushsk Pub., A / 5

Filial SHP Patent, g, Uzhgorod, st. Project) 1, i

Claims (1)

ELECTRO-GAS BURNER, containing successively installed ignition chamber with fuel supply unit, pilot light and electrode and vortex chamber with collector for auxiliary gas supply, at the outlet, which, in order to increase reliability, the electrode is made in the form of perforated cylinder located around the chamber of ignition, and is equipped with a conical nozzle, facing the top of the vortex chamber. -and about" ι 12