SU1250774A1 - Combustion apparatus - Google Patents

Description

The invention relates to the power industry and can be used, for example, in high-pressure steam generators of low power, operating under pressure.

The aim of the invention is to improve the economy.

FIG. 1 schematically shows a block with the proposed tlpochochnoy camera; in fig. 2 - furnace chamber, longitudinal section.

The unit contains a combustion chamber 1, a turbocharger 2, a rotary vane machine 3 and an additional compressor A. The combustion chamber 1 has an outer and inner casing 5 and 6, flue pipes 7, a combustion chamber 8, a flue gas collector 9 and a register housing 10. A nozzle 11 and a heating nozzle 12, as well as a pilot light 13 are installed at the upper end of the combustion chamber 1. The nozzle 11 is located at the end of the displacement chamber 1A having perforations 15 for supplying recirculation gases, an outlet nozzle 16 and poultry air supply. Channels 18 serve for supplying secondary air.

The device works as follows.

When the furnace chamber is in operation, the turbocharger 2, depending on the operating mode, autonomously or jointly, with a rotary vane machine 3, takes air, compresses and delivers it through perforations 17 of the nozzle 16 and channels 18 into the combustion chamber 8. The nozzle 11 feeds sprayed fuel into the mixing chamber 14. In this part) Move 1P} GC gas after the turbocharger

2 is pressed by co-stressor 4 and

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It is given through perforations 15 into the mixing chamber 14, in which the fuel is heated to a temperature above the fuel saturation temperature of 350-400 ° C, which allows not only the evaporation of the fuel, but also the symmetric decomposition of hydrocarbons. From the chamber 14, the evaporated fuel is directed by the pressure difference to the nozzle 16, where it mixes with the primary air and acquires an increased flow rate. Further, the stream enters the combustion chamber 8, where it is additionally mixed with the secondary air entering through the channel 18 and burns to form a torch. Such preparation of the fuel before it after mixing with the oxidizer and nozzle 16 makes it possible to increase the burning time of the resulting soot and coke particles and, therefore, to reduce the amount of deposits on surfaces 6 and 7 and the blades of the turbine 2. In addition, Combustion in chamber 14 in the initial period of fuel preparation contributes to a reduction in the content of nitrogen oxides in the leaving ghats. At the same time, the heat of the torch and flue gases are radiating - and the HF.iM radiation surfaces. Next, the products of combustion are collected in the gas, ohm collector 10 and enter the turbocharger 2, rotating it. Exhaust combustion products are sent to the outlet path, from where part of them is emitted into the atmosphere, and part is directed to suction of an additional compressor 4, where they are pressed to a pressure higher than the pressure in chamber 8, and enter chamber 14 through perforation 15.

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Editor Y. Sereda

Compiled by E. Languages Tehred M. Khodanych

Order 4391/30

Circulation 514

VI of the USSR State Committee

for inventions and discoveries 13035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

tffue.Z

Proofreader M. Sharoshi

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Claims (1)

A PRECISION DEVICE containing a mixing chamber with a front nozzle and channels for supplying primary air and recirculation gases and a combustion chamber connected to the mixing chamber, characterized in that, in order to increase economy, the mixing chamber has a diffuser-outlet nozzle, and supply channels primary air and recirculation gases are made in the form of perforations in its side walls. SU,, 1250774