SU1087748A1 - Heat generator - Google Patents

Abstract

1. HEAT GENERATOR containing an air duct with a tangential inlet nozzle and successively a grrpr m-sr. . jnJ3 fivif:,. Fig. 1 placed in a box with the formation of annular gaps a burner with a burner fixed at the end of the box and an annular channel for supplying primary air located around it, a flame tube and a mixer with radial windows and swirlers installed in the annular gaps, characterized in that In order to increase durability, inside the duct, in the annular primary air supply channel, there is additionally placed an air flow divider, the end portion of which is located equidistantly to the end of the duct to form the gap divided by radial ribs into channels. 2. A heat generator according to claim 1, characterized in that the tangential inlet pipe is provided with guide longitudinal partitions.

Description

The invention relates to energy and can be used as a heat generator operating on liquid or gaseous fuels during heat treatment of products and. materials, in particular, with railway cars. A heat generator is known that contains a tangential inlet duct for air supply, in which a fuel supply unit, a heat pipe and a mixing shell are installed successively to form an annular gap between them, and a swirler 1 is installed in the annular gap between the fuel supply unit and the fire tube. low reliability Also known is a heat generator containing an air duct with a tangential inlet nozzle and successively placed in a duct to form annular gaps a burner with a torch mounted on the duct face and an annular primary air supply channel located around it, a flue pipe and a mixer with radial windows and installed there are swirlers in the annular gaps 2. The disadvantage of this burner is also low reliability due to poor cooling conditions of the flame tube at its high heat p field intensity. The aim of the invention is to increase durability. This goal is achieved by the fact that in a heat generator containing an air duct with a tangential inlet duct and successively placed in a duct with the formation of annular gaps a burner with a torch fixed at the end of the duct and an annular primary air supply channel located around it, a flame tube and a mixer with radial windows and swirlers installed in the annular gaps, inside the duct an air flow divider is additionally placed in the annular primary air supply channel, then The rts site of which is located equidistantly to the end of the box with the formation of a gap divided by radial ribs into channels. In addition, the tangential inlet is provided with guide longitudinal baffles. FIG. 1 shows a heat generator, a longitudinal section; in fig. 2 is a section AA in FIG. one; in fig. 3 shows a section BB in FIG. 1. The heat generator contains an air duct 1 with a tangential inlet nozzle 2 and a burner 3 with a burner 4 mounted on the end 5 of the duct 1 and the primary air supply channel 6 located around it, the flame tube 7 and a mixer 8 with radial windows 9 and swirlers 10 installed in the annular gaps 10. Inside the duct 1 in the annular channel 6 of the primary air supply there is additionally placed a divider 11 of the air flow, the end section 12 of which It is located equidistantly to the end face 5 of the box 1 with the formation of a gap 13 divided by radial ribs 14 into channels 15. The tangential inlet 2 is equipped with guide longitudinal partitions 16. The heat generator operates as follows. The air entering the duct 1 through the tangential inlet nozzle 2 is divided into several streams. A part of it (secondary air) rushes to the swirlers 10 and the radial windows 9, washes the outside of the flame tube 7 and the mixer 8 and enters the heat generator, where it participates in the combustion process. The other part (primary air) rushes towards the burner 3, where, in turn, it is divided into two streams. One stream in the form of a tangentially swirling jet moves along the periphery of the annular channel 6 for supplying primary air, washing from the external side the divider 11 of the air flow. The second stream is aligned with the ribs 14 in the channels 15 of the gap 13 and in the form of an uncirculated stream enters the channel inside the divider 11 for combustion. Such a structure of air movement contributes to the improvement of the combustion process, creating a uniform torch, and reduces the intensity of the heat flow near the wall of the flame tube, which reduces its temperature and increases the durability of the heat generator.

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Claims (2)

1. A HEAT GENERATOR containing an air box with a tangential inlet pipe and sequentially placed in the box with the formation of ring gaps, a burner device with a burner mounted on the end of the box, and an annular primary air supply channel located around it, a heat pipe and a mixer with radial windows and swirlers installed in the annular gaps, characterized in that, in order to increase durability, an air divider is additionally placed inside the duct in the annular primary air supply channel Nogo stream socket portion of which is located equidistantly end box to form a gap, the radial ribs divided into channels. 2. The heat generator according to π. 1, characterized in that the tangential inlet pipe is provided with guide longitudinal partitions.