SU1437631A1 - Boiler - Google Patents

Abstract

Invention m. used in heat supply .. The purpose of the invention is to increase the efficiency of the boiler. In the combustion chamber 1 with an arched vault 2, heat exchange sections 3 are fan-shaped, having a trapezoid shape in cross section and forming between them gas ducts 4 of variable flow section, decreasing along the dB combustion gases of combustion products. In the lower part of chamber 1 along its axis, an air supply box 6 is installed, communicated by air with burners 5, Г arranged symmetrically to the axis of the chamber inside it. Section 3 is connected by nozzles to the distributing and collecting collectors. Such an implementation and placement of the heat exchange sections improves heat removal. 2 Il.

Description

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S

 & d

with

Phys./

The invention relates to heat and power engineering and the market has to be used in boiler rooms; installations of power supply systems;

The aim of the invention is to improve the economy by improving heat generation.

FIG. 1 shows a schematic cross-sectional view of FIG. 2, the same, top view.

The boiler contains a combustion chamber 1 with an arched vault 2 "In the chamber 1, the heat-milling section 3j is fanned and has a cross section of a trapezoid shape and between them are flues A of variable cross section 5 decreasing along the movement of the combustion products. burner 5, and in the lower part of chamber 1 along its axis there is an air-guiding box 6s communicating with the burners 5 by air. Section 3 is connected by nozzles 7 and 8 to the dispenser and collecting: collectors 9 and 10 respectively etstvenno, in the upper part of the chamber 1 vsholnen channel 1 of the combustion products outlet

The boiler works as follows. The burner 5 is supplied with gaseous fuel, which is mixed at the outlet with air that is preheated in the air inlet duct 6.

Formed during the burning of a fuel-carrying vehicle - es chopper, a duct is installed in a mixture of combustion products is sent to the ducts 4 and intensively

wash the surfaces of sections 3 through which the working medium circulates, for example water which is supplied through. the collector 9, and is led through the collector 0

Fan-shaped placement of heat exchange sections 3, having a trapezoid shape in cross section and the formation between 3 adjacent sections of gas ducts A of variable cross section, decreasing in the course of movement of combustion products, allows to improve the heat removal, increase eco-log: 1 minute operation of the boiler:

P o rm o l a

The boiler containing the combustion chamber with an arched vault, in which the heat exchange sections are installed, is sub-reinforced (go to the dispensing unit and collector collectors, 5 as well as the burner axis located inside the chamber, symmetrically to its axis, and the air duct, In order to increase efficiency by improving heat removal, the heat exchange sections are placed in the combustion chamber in a vertical shape and form a trapezoid in cross section, forming trapeziums, forming between them ducts of variable cross section 5 and products of combustion, and the rising part of the furnace chamber along its axis and communicated by air with the burners.

- €

/ 7

Neither 1141

ten

Compiled by A. Shikov Editor Y. Sereda Tekhred L. Serdyukova Proofreader S. Cherni

Order 5876/37

Circulation 663

BNIIPI USSR State Committee

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

ff

and AND II 111

Phage. 2

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Claims (1)

Claim A boiler containing a combustion chamber with an arcuate arch, in which heat-exchange sections are connected to the distributing and collecting manifolds, as well as located inside the chamber symmetrically to its axis of the burner. and an air supply duct, characterized in that, in order to increase efficiency by improving heat removal, the heat exchange sections are fan-shaped and have a trapezoidal cross-sectional shape, forming between them gas ducts of variable flow cross-section, decreasing along the course of the combustion products, and an air supply duct installed in the lower part of the combustion chamber along its axis and communicated through the air with the burners.