SU900072A1

SU900072A1 - Combination burner

Info

Publication number: SU900072A1
Application number: SU762356164A
Authority: SU
Inventors: Алихан Рахматович Атаджанов; Дильшад Мирзаевич Ахмедов; Александр Анатольевич Абрамов; Альберт Юхаевич Сакаев; Виктор Исаакович Кацман; Василий Григорьевич Булгаков
Priority date: 1976-05-10
Filing date: 1976-05-10
Publication date: 1982-01-23

Description

Изобрете1ше относитс к сжиганию тойлива и может быть использовано преимущественно дл мощных парогенераторов в энергетике, а также в нефтехимической и металлургической отрасл х промышленности.The invention relates to fuel burning and can be used mainly for powerful steam generators in the power industry, as well as in the petrochemical and metallurgical industries.

Известна газомазутна горелка, содержаща корпус с коаксиально установленными центральной форсункой, кольцевым газовым коллектором с соплами и размещенной между ними обечайкой, раздел ющей корпус на периферий- д ный и центральный каналы. В периферийном канале установлен кольцевой завихритель 1.A gas-oil burner is known, comprising a housing with coaxially mounted central nozzle, an annular gas manifold with nozzles and a shell between them that separates the housing into peripheral and central channels. An annular swirler 1 is installed in the peripheral channel.

Недостатком этой горелки вл етс низка эффективность сжигани за счет плохого смесеобразовани , что объ сн етс т1зкой турбулентностью потока на выходе из горелки.The disadvantage of this burner is the low burning efficiency due to poor mixing, which is explained by the usual turbulence of the flow at the burner outlet.

Наиболее близким к предлагаемому техническим решением вл етс газомазутна горелка , содержаща корпус с коаксиально установленными центральной форсункой, кольцевым газовым коллектором с соплами и размещенной между ними обечайкой, раздел ющей корпус на периферийный и центральный каналы, в последнем из которых установлен лопаточный завихритель 2. .Closest to the proposed technical solution is a gas-oil burner, comprising a housing with coaxially mounted central nozzle, an annular gas manifold with nozzles and a shell between them that separates the housing into peripheral and central channels, in the latter of which there is a blade vortex 2..

Недостаток известной горелки заключаетс также в низкой эффективности сжигани , обусловленной плохим смесеобразованием.A disadvantage of the known burner is also low combustion efficiency due to poor mixing.

Цель изобретени - повышение эффективности сжигани путем улучшени смесеобразовани за счет обеспечени условий наибольшей турбулентности потока на выходе из горелки.The purpose of the invention is to increase the combustion efficiency by improving the mixture formation by providing the conditions for the most turbulent flow at the exit of the burner.

Указанна цель достигаетс тем, что лопатки завихрител установлены под углом 32-43° к оси корпуса, поперечное сечение газового коллектора имеет форму треугольника , основание которого обращено к выходу из корпуса, сопла коллектора расположены параллельно боковым сторонам упом нутого треугольника, а отношение площадей поперечных сечений центрального н периферийного каналов составл ет 0,42-0,35.This goal is achieved by the fact that the swirler blades are installed at an angle of 32-43 ° to the axis of the body, the cross section of the gas collector has the shape of a triangle, the base of which is facing the exit from the body, the collector nozzles are parallel to the sides of the said triangle the central n peripheral channel is 0.42-0.35.

Claims

FIG. 1 shows a burner, a longitudinal section; in fig. 2 - the same, front view; in fig. 3- node 1 in FIG. 1. 39 The burner includes a housing 1 with a central nozzle 2 and a gas ca. 3 which is coaxial with the housing and an annular shell 4 that separates the housing into the central 5 and peripheral b channels. A channel swirler 7 is installed in the central channel of channel 5, and a conical swirler 8 is installed in the peripheral channel 6, which has an actuator 9 for its movement. Nozzles 10 connected parallel to the gas collector 3 are connected to a gas collector having a triangular cross-sectional section. Gas is supplied to collector 3 through pipes 12. The best combustion efficiency is achieved by installing swirl blades 7 at an angle of 32-43 ° and area ratio cross sections of the central 5 and peripheral 6 channels constituting 0.42-0.35. This achieves maximum turbulization of the output pa and the best conditions (mixing). The proposed burner operates with a combined supply of gas through the gas collector 3, fuel oil through the central nozzle 2 and air through the central channel 5 and peripheral channel 6. Degree of twist the air flow can be adjusted by rotating the drive 9 with a conical opacifier 8. The use of the proposed burner will reduce the underburning of fuel and the concentration of harmful impurities in the combustion products. Claim 1. Combined burner containing case with coaxially mounted central nozzle, annular gas manifold with nozzles and shell between them separating the case into peripheral and central channels, in the latter of which there is a blade swirl, characterized in that in order to increase combustion efficiency by improving the mixture formation, the swirler blades are set at an angle of 32-43 ° to the axis of the body, the cross-section. The gas manifold has a triangle shape, the base of which is facing the exit from the housing, and the manifold nozzles are arranged parallel to the sides of the said triangle. 2. A burner according to claim 1, characterized in that the ratio of the cross-sectional areas of the central and peripheral channels is 0.42-0.35. Sources of information taken into account in the examination 1. USSR author's certificate number 334436, cl. F 23 D 17/00, 1969.

2. USSR author's certificate number 354222, cl. F 23 O 17/00, 1970.

YU

FIG. 2

11 W