SU1714293A1 - Furnace - Google Patents

Abstract

The invention relates to the combustion of fuel and makes it possible to increase the economy by burning underburning. This is achieved by those. that the walls, on which the burners and air nozzles are placed, are made in the form of corrugations, and in front of the air nozzles are placed corner beaters. 4 il.

Description

The invention relates to a power system and can be used for burning coal with a prolonged combustion phase.

A known furnace containing a shielded vertical combustion chamber, on two opposite walls of which are arranged in alternate order and in the counter burner.

A known furnace containing a shielded vertical combustion chamber, on two opposite walls of which there are burners and air nozzles alternating in the rear panel.

The disadvantage of the known furnaces is that the ejection of the flue gases into the root of the flame is weak, which does not reduce the underburning.

... n. .

Known fireboxes containing twirls; the prismatic burners, on 4 opposite walls of which are located} | in alternating order and oppositely at the same level, horizontal

equal-pitch burners and air nozzles.

A disadvantage of the known furnaces is reduced combustion efficiency, which does not reduce underburning.

The purpose of the invention is to increase efficiency by reducing underburning.

The goal is achieved by those. that in a furnace containing a shielded vertical unequal combustion chamber, on two opposite large walls of which the burners and air nozzles are alternately arranged and opposing each other, the large walls of the combustion chamber, and the burners are located on the outer vertices of the corrugations, and the nozzles are internal and they are equipped with corner baffles that form slotted channels with the corrugations.

Making large walls of the combustion chamber in the form of corrugations, with burners on the outer vertices of the corrugations, and air nozzles on the inner ones and supplying them with corner chippers forming the slotted channels with the edge of the corrugated channels allows the circulation of fuel to be completely burning out, which reduces underburning. This is achieved by means of corner beaters that provide a wall-mounted supply of air transporting dust to the root of the torch of the oncoming burner. Organized by two-stage combustion, reducing the formation of nitrogen oxides. The execution of walls in the form of corrugations increases the surface of the beam-like view of the firebox without additional double-light shields.

FIG. 1 shows the proposed furnace, a longitudinal section; FIP 2 is a section in FIG. one; in fig. 3 shows the node I in FIG. 2, vertical section: in FIG. 4 shows a section BB in FIG. 3

The furnace contains a shielded vertical unequal combustion chamber 1, on two large opposite walls 2 and 3 of which are arranged in alternating order and oppositely to each other at the same level by horizontal rows of burner 4 and air nozzles 5 in the form of vertical slits of rectangular section. The large walls 2 and 3 of the combustion chambers are made in the form of corrugations, the burners 4 being located on the outer vertices of the corrugations, and the air nozzles 5 on the inner ones and equipped with angular bumpers 6, forming with faces

corrugated slotted channels 7. Corner bumpers 6 are connected to nozzles by 5 horizontal plates 8. Convective gas ducts can be connected from the side of smaller

the walls of the combustion chamber 1.

The furnace works as follows. Dust is supplied to burner 4 with insufficient air. The passage between walls 2 and 3. The dust is heated and dissected by the baffle plates into two streams that are laid on the air flow from the nozzles 5. The underburner falls into the root of the torch of the burners 4 and the cycle repeats until the dust burns out completely, which reduces the underburning.

Two-stage dust combustion reduces the release of nitrogen oxides, and making walls 2 and 3 in the form of corrugations increases the radiation surface of the heat sprit without increasing the height of the furnace.

FORUMUA AND 3 ABOUT AND

A firebox containing a shielded vertical unequal combustion chamber, on two b ({of which have fallen opposite walls, are alternately arranged and opposed to

each other's burners and air nozzles, of which there is. which, in order to increase

economy by reducing underburning.

The large walls of the combustion chamber are made in the form of corrugations, and the heaters are located on the outer vertices of the corrugations, and the air nozzles are inner / gray and they are equipped with angular bumpers that form the slot channels with the edges of the corrugations.

one.

Claims (1)

Claim A furnace containing a shielded vertical non-uniform combustion chamber, on two large opposing walls of which are arranged in alternating order and opposite to each other, burners and air nozzles, is similar. that, in order to increase profitability by reducing the underburning, the large walls of the combustion chamber are made in the form of corrugations, with the burners located on the outer vertices of the corrugations, and the air nozzles on the inner corrugations are equipped with corner chippers forming slotted channels with the corrugation faces. Figure 1 4-D Fie. 2 B'B