SU1395897A1 - Method of burning up gas - Google Patents

Abstract

Invention m. used in fuel combustion units and reduces the content of toxic impurities in the combustion products. At the same time, sprayed water is injected into the flow of the fuel-air mixture in the amount of 2-3% of the fuel consumption at a ratio of the average diameter of the drop to the diameter of the spray jet 0,011-0,016. This embodiment eliminates the excessively rapid evaporation of water, cooling down the root of the torch and the leakage of droplets through the zone of active destruction of carcinogens. A portion of the secondary air stream is fed over the impact zone in a quantity of 20-22%, and another portion is served in a quantity of 8-14% of the total air flow above the impact zone, which allows reducing the concentration of nitrogen oxides. 1 il. o (I

Description

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as compared with the optimal mode, in which fine water dispersed with a dispersed characteristic equal to 0.011-0.016, is injected in the amount of 2-3% of the fuel consumption. When water is supplied with a lower dispersion characteristic, excessively rapid evaporation of water and cooling of the root part of the torch occur. When supplying water with a higher dispersion characteristic

The invention relates to the power industry and can be used in the furnaces of boilers and other fuel burners, their units.

The aim of the invention is to reduce the content of toxic impurities in the combustion products.

The drawing shows a boiler furnace, in which the described method of gas combustion can be implemented.

The boiler furnace includes a housing 1, burners 2 for supplying an air-fuel mixture, Yu dropping through the zone of active section (3 for supplying oncoming air — carcinogen discharges, which results in a reduction of the impact area and splines 4 for supplying burning efficiency. above the impact zone, the amount of water injected from the point of water injection apparatus 5. The view of effectively reducing cancer is 2–3% when supplying the opposing casing through genes. happening an increase in the concentration of nitrogen oxides as compared with the mode of rotybiometric combustion, although the amount of cancers of cancer substances is lower than that of stoichiometric combustion.

4in an amount less than 20–22% of the proiz-method of gas combustion by supplying a fuel with a significant increase in the air-to-air mixture concentration and secondary inflation of nitrogen oxides compared with the optimum counter-current flows with the formation of the ibiM mode, as well as 25 impact zones, characterized in that, with | 1 the emission of carcinogenic substances. to reduce the toxic content

with a larger mass, a greater amount of whey water is required (more than 5%), which leads to a decrease in boiler efficiency.

Claims (1)

Invention Formula When supplying oncoming air above the Impact zone through the slots 4 in an amount, an increase in the formation of {and both nitrogen oxides and carcinogens is observed impurities in the combustion products, sprayed water is introduced into the flow of the air-fuel mixture in the amount of 2-3% of the fuel consumption at the ratio of the average diameter compared to the optimal mode. 30 meters of droplets to the diameter of the spray Three supply of the same oncoming air through the slots 3 and 4 in the amount of 20-22%, including 8-14% of the total air flow above the impact zone through the slots 4, without water injection, significant 0,011-0,016, and the secondary air stream is divided, a part of it is introduced and fed over the impact zone, while the amount of secondary air supplied to the impact zone is 20-22%, and Reducing the concentration of oxides of nitrogen, one part of it, 8-14% of the total consumption of air, increases the discharge of the perfume. as compared with the optimal mode, in which fine water dispersed with a dispersed characteristic equal to 0.011-0.016, is injected in the amount of 2-3% of the fuel consumption. When water is supplied with a lower dispersion characteristic, excessively rapid evaporation of water and cooling of the root part of the torch occur. When supplying water with a higher dispersion characteristic leakage of droplets through the zone of active destruction of carcinogens, which leads to a decrease in combustion efficiency. At the same time, the amount of injected water in terms of effective reduction of carcinogens is 2-3%. When supplying water with a larger mass, a larger amount of scrubbed water is required (more than 5%), which leads to a decrease in boiler efficiency. Invention Formula impurities in the combustion products, sprayed water is injected in the amount of 2-3% of the fuel consumption at the ratio of the average diameter of the drop to the spray diameter meter drops to the diameter of the spray 0,011-0,016, and the secondary air stream is divided, a part of it is introduced and fed over the impact zone, while the amount of secondary air supplied to the impact zone is 20-22%, and its part is 8-14% of the total air flow.