SU883598A2 - Radiation burner - Google Patents

Description

I

The invention relates to devices for burning gaseous fuels and can be used for heating metal in furnaces for various purposes in the metallurgical, chemical, oil refining and other industries.

According to the main auth. No. 777355, a radiation burner is known, comprising a housing with a tangential air inlet body with a diffuser outlet section, adjacent to the toroidal embrasure, and an axially installed gas inlet pipe with radial nozzles.

The burner is equipped with an additional air supply tangential pipe that is connected to the case diametrically available and directed counter to the last l.

A disadvantage of the bitter bitch is the impossibility of creating a combined torch to control

the amount of heat flow to the metal.

The purpose of the invention is to expand the range of adjustment of parameters (.

This goal is achieved by the fact that the radiation burner is equipped with an additional burner device installed along the axis of the gas supply pipe and made in the form of a cylindrical casing with a tangential air supply pipe, a central fuel supply pipe at the inlet and a confusion-diffuser output. At the outlet, moreover, distributing vanes were installed along the periphery of the aforementioned central fuel supply pipe, and the front end of the confuser-diffuser nozzle was located outside the toroidal embrasure.

Figure 1 shows a radiation burner, a longitudinal cut; 2 a top view; on fig.Z - the same, nd j: 6oKy,

The radiation burner includes a housing 1 equipped with a tangential air inlet pipe 2. A diffusion outlet section 3 of the housing

1 is adjacent to the toroidal embrasure 4. The axis of the housing 1 is equipped with a gas supply pipe 5 with radial nozzles 6. Diametrically the nozzle

2 to housing 1, in addition, connect the tangential air supply pipe 7, which is directed opposite to pipe 2. The pipes 2 and 7 are connected to the air line.

The radiation burner is equipped with an additional burner device installed along the axis of the gas supply pipe 5 and made in the form of a cylindrical case 8 with a tangential air supply pipe 9, a central fuel supply pipe 10 at the inlet and a confuser-diffuser nozzle 11 at the outlet, and along the periphery of the said central fuel supply the pipes 10 are additionally fitted with ml of the scapula 12, and the front end of the confused diffuse nozzle 11 is located outside the toroidal embrasure 4,

The radiation burner works as follows.

Dp of creating the main heating torch, gas through the gas supply pipe 5 through radial nozzles 6 enters the toroidal embrasure 4, where it mixes with the swirling air flow. Air from the fan through the pipe 2 enters the burner body 1 and moves along the spiral trajectory to the toroidal embrasure 4..

Dp creating an auxiliary cell of gas through the central fuel supply pipe 10 goes into the inner part of the cylindrical casing 8,

in which it mixes with the air flow. The air enters through the nozzle 9 into the inner part of the casing 8, and the passage through the spraying vanes 12 loses rotational movement and acquires considerable turbulence, which promotes good mixing of gas and air. The gas-air mixture is ready to go through the confused-diffuser nozzle II to form a closed torch.

A radiation torch with a combined torch allows you to create streams of different chemical composition in the furnace working space. The main torch creates an intense heat flux to the metal, while the auxiliary torch creates a stream above the metal with the protective composition of the atmosphere.

Claims (1)

1. The author's certificate of the USSR in application number 2528556, cl. F 23 D 13/12, 1977. U Fy R | li 2 d) igz