SU877226A1 - Burner - Google Patents

Description

I

The invention relates to energy and energy and may be Hcno; ii; i () iuiHo in fluidized bed bottles.

A known burner containing a gas supply pipe with nozzles at the outlet end, filled with refractory granules placed in two layers, the granule size of the lower layer exceeding 3-5 times the size of the granules of the upper layer | 1}.

A disadvantage of the known device is low reliability due to the overheating of the upper part of the burner and the inability to self-regulate fuel consumption.

The purpose of the invention is to increase reliability by cooling the upper part of the burner and controlling fuel consumption.

This goal is achieved by the fact that the burner is provided with an additional refractory filling, the granule size of which is 5 to 18 times smaller than the granule size of the upper layer.

The drawing shows the proposed burner.

The burner contains a gas supply pipe I with nozzles 2 at the outlet end, filled (H) 4) MINER

granules placed in the lower layer 4, as well as backfilling 5.

In the upper part of the burner in front of the nozzles 2 installed grid 6.

When the burner is operating, the gas-air mixture first passes the lower layer of the granules 3 and causes the backfill 5 to become fluidized. Next, the backfill 5 passes the top layer of granules 4, rises above the latter and fills the upper part of the burner, intensively cooling its walls. With an increase in gas flow rate, backfilling 5 rises to the net-,

10 ке 6 and gfikryvaet it, reducing the amount of fuel "falling into the nozzle 2, thus reducing self-regulation of the flow. In the proposed construction, the regulation of the hydraulic resistance is also very simple. For this

IS only need to vary the amount of zasypya 5.

Claims (1)

Invention Formula 20 A burner containing a gas inlet pipe with nozzles at the exit end, filled with two refractory granules placed in two layers, the granule size of the lower layer being 3-5 times larger than the Grailul dimension of the upper layer, characterized in that, in order to increase reliability by cooling the upper parts of the burner and regulated fuel consumption, it is equipped with additional refractory filling, the size of the granules is 5-18 times smaller than the size of the granules of the upper layer. Sources of information taken into account in the examination 1. Patent of England No. 1036890, class .. F 4 X, publ. 197.