SU787792A1

SU787792A1 - Injection burner

Info

Publication number: SU787792A1
Application number: SU772438127A
Authority: SU
Inventors: Владимир Валентинович Бондаренко; Владимир Георгиевич Лисиенко
Original assignee: Пермский политехнический институт
Priority date: 1977-01-03
Filing date: 1977-01-03
Publication date: 1980-12-15

Description

(54) ИНЖЕКЦИОННАЯ ГОРЕЛКА(54) INJECTION BURNER

Изобретение относитс к устройствам дл сжигани горючих газов в теплотехнических агрегатах и может быть использовано в энергетической , металлургической и других отрасл х народного хоз йства.The invention relates to devices for the combustion of combustible gases in heat engineering units and can be used in the energy, metallurgical and other sectors of the national economy.

Наиболее близкой к изобретению по тех-- , нической сущности вл етс инжекционна горелка, содержаща цилиндрически корпус с центральной трубой, подключенной к источнику воздуха, по периферии которой размещен газовый коллектор с соплами . Центральна труба установлена с воз- 10 можностью поворота вокруг продольной оси и имеет отверсти , выполненные наклонно к продольной, оси корпуса в виде веерообразных групп 1.Closest to the invention in its technical essence is an injection burner, comprising a cylindrical body with a central tube connected to an air source, on the periphery of which a gas collector with nozzles is placed. The central tube is installed with the possibility of rotation around the longitudinal axis and has openings made obliquely to the longitudinal axis of the body in the form of fan-shaped groups 1.

Недостатками известной горелки вл ютс узкие пределы регулировани коэффициента эжекции, а также невозможность обеспечени плавного регулировани .The disadvantages of the known burner are the narrow limits of regulation of the ejection coefficient, as well as the impossibility of ensuring smooth control.

Цель изобретени -обеспечение плавного регулировани коэффициента эжекции в щироких пределах при периферийной мно- 20 гоструйной подаче эжектирующего газа.The purpose of the invention is to provide a smooth adjustment of the ejection coefficient within wide limits in the case of a peripheral multi-purpose supply of ejecting gas.

Указанна цель достигаетс тем, что центральна труба установлена с возможностью аксиального перемещени и размещена воThis goal is achieved by the fact that the central tube is installed with the possibility of axial movement and is placed in

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входном участке корпуса, выполненном в зоне ее выходного среза с коническим сужением коллектор расположен перед последним и на выходе снабжен фигурными клинь ми уменьщающегос по ходу потока сечени , образующим с коническим сужением корпуса сопла и служащими направл ющими дл трубы.The inlet section of the housing, made in the area of its exit slice with a conical taper, is located in front of the latter and is equipped with shaped wedges of a section that decreases along the flow, which form a conical taper of the nozzle and serve as pipe guides.

На фиг. 1 схематически представлена инжекционна горелка, продольный разрез; на фиг. 2 - сечение А-А на фиг. 1; на фиг. 3- сечение Б-Б на фиг. 1; на фиг. 4 - объединение нескольких инжекционных горелок в блок.FIG. 1 shows a schematic representation of an injection burner, longitudinal section; in fig. 2 is a section A-A in FIG. one; in fig. 3- section BB in FIG. one; in fig. 4 - combining several injection burners into a block.

Claims

The burner comprises a cylindrical housing 1 with a central tube installed with the possibility of axial movement and connected to an air source. The housing 1 in the exit section of the pipe 2 is made with a conical taper 3, dividing the housing 1 into two sections, with a gas collector 4 formed by the housing 1 and the central pipe 2 located on the larger diameter section, and the smaller diameter section acts as a mixing chamber 5 The nozzles 6 of the gas manifold 4 are formed by shaped wedges 7 of a downstream section that serves as guides during axial movement of the pipe 2. The pipe 2 is moved by the body 1 through the threaded connection of these elements. At the same time, the gas collector is sealed with a cap nut 8, a seal 9 and a washer 10. The number of nozzles 6 of a gas collector 4 can be taken up to 6-8 with a significant diameter of the mixing chamber 5. The burner works as follows When supplying gas to the collector 4, it is through nozzles 6 enters the mixing chamber 5 in the form of separate jets inclined to the axis of the burner. Gas jets eject atmospheric air entering the mixing chamber 5 through the central tube

2. The change in the ejection coefficient is provided by turning a certain angle of the central pipe 2, which consequently moves along the threads in the housing 1 and along the shaped wedges 7 to one side or the other, changing the incoming section of the nozzles 6. It is possible to combine several injection burners into a block, In this way, the operation of each individual burner is carried out in a similar way. An injection burner with a peripheral fuel supply allows smooth adjustment of the ejection coefficient over a wide range up to ± (10I 15)% when setting up the operating mode of the fuel combustion units, which makes it possible to burn fuel more economically with an optimal air excess factor. In addition, the design of the burner allows for the assembly of gas burner blocks from similar burners of small dimensions. Invention burner comprising a cylindrical body with a central tube connected to an air source, on the periphery of which a gas manifold with nozzles is placed, characterized in that, in order to adjust the ejection coefficient over wide limits, the central tube is axially displaceable and placed in the entrance section of the housing, made in the area of its output slice with a conical narrowing, the collector is located in front of the latter and is equipped with figure wedges reducing axes of section downstream, forming a conical constriction of the nozzle body and serving to guide the tube. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 388171, cl. F 23 D 13/00, 1971.

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