SU819498A1 - Boiler furnace - Google Patents

Description

(54) BOILER CUTTER

I

The invention relates to energy and can be used in boiler building.

Closest to the invention is a boiler box containing a combustion chamber fitted with a coping grill connected in series with the convective gas duct and a gas-tight transverse tubular partition located in the chamber forming the afterburner zone of the chamber. Disadvantages of the known boiler furnace are reduced efficiency fuel use, associated with the reflux of the latter in the afterburning zone, and reduced reliability of operation, due to frequent outages return fly ash.

The aim of the invention is to increase fuel efficiency and increase reliability.

This goal is achieved by the transverse partition in the lower part

has a festoon bent toward the afterburning zone, and the upper end of the partition is made tightly adjacent to the ceiling of the combustion chamber, and the grate is mounted on the entire length of the latter.

Hia FIG. I shows the boiler furnace, general view; in fig. 2 is a section of the section A-A in FIG. I; FIG. 3 - section cut BB in FIG. 2

The furnace contains a chamber 2 equipped with a grate t connected in series with the convective gas duct, 3. In chamber 2 there is a gas-directional transverse partition 4 forming from the back wall 5 of chamber 2 of the afterburning zone. The transverse partition 4 in the lower part has a scallop 6, bent toward the afterburning zone. The upper end face of the village 4 is made tightly adjacent to the ceiling.

0 7 cameras 2, and the grate 1 is installed along the entire length of the latter. In the front wall 8 of the chamber 2 is the fuel spreader 9. With convective

gas duct 3 camera 2 is connected through the afterburning zone and the festoon Yu.

Large pieces of coal flying out of the spreader 9 reach the gas-tight partition 4 mainly in the area of the festoon 6 and, striking the last 6 pipes, hit the grate I. Individual pieces of coal that have flown through the festoon 6 hit the back wall 5 of chamber 2, also fall on the grate I.

The flue gases, having made a turn in a vertical plane, in the zone of the chamber 2 located between its front wall 8 and the partition 4, get through the festoon 6 into the afterburner zone of the chamber 2, and then go through the festoon Yu to the convective gas flue 3.

Thus, in the proposed fire chamber, there is no transfer of coal into the afterburning zone, which leads to a decrease in heat loss from underburning and an increase in the efficiency of fuel use. In addition, the absence of coal reflow into the afterburning zone of chamber 2 improves the reliability of the ablation return system.

Claims (1)

Invention Formula The boiler furnace, containing a combustion chamber fitted with a grate, connected in series with the convective gas duct, and a gas-tight transverse tubular partition located in the chamber, forming an afterburning zone with the rear wall of the chamber that is effective in order to increase. use of fuel and increase reliability of operation, the transverse partition in the lower part has a festoon bent toward the afterburning zone, and the upper end of the partition is made tightly adjacent to the ceiling of the chamber, and the grate is installed along the entire length of the latter. Sources of information taken into account in the examination I. USSR author's certificate № 20892 1 cell. G24 N 1/44, 1966.