SU775517A1

SU775517A1 - Gas burner

Info

Publication number: SU775517A1
Application number: SU772533508A
Authority: SU
Inventors: Геннадий Михайлович Барахтенко; Виктор Александрович Ширинкин
Original assignee: Запорожский индустриальный институт
Priority date: 1977-10-03
Filing date: 1977-10-03
Publication date: 1980-10-30

Description

Изобретение относится к области печной теплотехники, в частности к сжигающим устройствам - газовым горелкам, работающим в условиях высокого разрежения и атмосфере водяных паров.The invention relates to the field of furnace heating technology, in particular to combustion devices - gas burners operating in conditions of high vacuum and an atmosphere of water vapor.

Известна газовая горелка, содержащая ⁵инжекционный смеситель с Газовым соплом и соосно установленную по периферии смесителя обечайку с конфузорным соплом, сообщенную на входе с атмосферой tilA gas burner is known, comprising a ⁵ injection mixer with a gas nozzle and a casing with a confuser nozzle coaxially mounted around the periphery of the mixer, communicated at the inlet with the atmosphere til

Конструкция такой газовой горелки не обеспечивает устойчивый процесс горения, а следовательно, и сжигание газа в среде с высоким разрежением и атмос— фере водяных паров, поскольку не происходит полного перемешивания вторичного воздуха с газовой смесью, и инжектирующий поток вторичного воздуха отрывает факел от горелки, _м The design of such a gas burner does not provide a stable combustion process, and consequently, the combustion of gas in a medium with a high vacuum and the atmosphere of water vapor, since there is no complete mixing of the secondary air with the gas mixture, and the injecting stream of secondary air detaches the torch from the burner, _m

Целью изобретения является повышение эффективности сжигания.The aim of the invention is to increase combustion efficiency.

$то достигается тем, что предлагаемая газовая горелка снабжена цилиндрической огневой головкой, установленной на выходном участке смесителя за стабилизатором, выполненным в виде перфорированной поперечной перегородки, и расположенной от выходных срезов головки и сопла обечайки соответственно на расстояниях, равных одному и полутора диаметрам огневой головки.This is achieved by the fact that the proposed gas burner is equipped with a cylindrical firing head mounted on the output section of the mixer behind the stabilizer, made in the form of a perforated transverse partition, and located from the output sections of the head and the nozzle of the shell, respectively, at distances equal to one and a half diameters of the firing head.

На фиг.1 представлена предлагаемая головка, общий вид: на фиг.2 - разрез А-А на фиг.1.Figure 1 presents the proposed head, General view: figure 2 - section aa in figure 1.

Газовая горелка содержит сопло 1, ввинченное в инжекционный смеситель 2 с цилиндрической огневой головкой 3 на выходном его участке. Внутри огневой головки 3 установлен стабилизатор 4 горения, выполненный в виде перфорированной поперечной перегородки. По периферии смесителя 2 соосно установлена обечайка с конфузорным соплом 5, имеющая сообщение на входе с атмосферой. Для фиксации смесителя 2 в обечайке с конфузорным соплом 5 служат центрирующие пластины 6. Регулирование расхода первичного и вторичного воздуха осуществляется регулирующими заслонками 7 и 8.The gas burner contains a nozzle 1 screwed into the injection mixer 2 with a cylindrical firing head 3 at its output section. Inside the fire head 3, a combustion stabilizer 4 is installed, made in the form of a perforated transverse partition. On the periphery of the mixer 2 coaxially mounted shell with confuser nozzle 5, which has a message at the entrance to the atmosphere. For fixing the mixer 2 in the casing with the confuser nozzle 5, centering plates 6 are used. The flow rate of the primary and secondary air is controlled by the control flaps 7 and 8.

Горелка работает следующим образом.The burner operates as follows.

Газовой струей, истекающей из сопла 1, инжектируется первичный воздух через отверстая регулирующей заслонки 7. Поступающий газ н первичный воздух смешиваются в смесителе 2. Образованная газовоздушная смесь из смесителя 2 поступает через стабилизатор 4 в цилиндрическую ₁₀огневую головку 3, внутри которой газовоэдушная смесь воспламеняется.Primary air is injected with a gas stream flowing from nozzle 1 through the opening of the control damper 7. The incoming gas and primary air are mixed in the mixer 2. The air-gas mixture formed from the mixer 2 enters through the stabilizer 4 into the cylinder ₁₀ fire head 3, inside which the gas-air mixture is ignited.

Недостающий воздух для полного сжигания газа инжектируется за счет разрежения топочного устройства через регули- ₁₅рукяцую заслонку 8 и поступает в факел через соосно установленную по периферии смесителя 2 обечайку с конфузорным соплом 5.Missing air for complete combustion of the gas injected by the vacuum apparatus through the flue ₁₅ rukyatsuyu regulated valve 8 and enters the torch through coaxially mounted around the periphery of shroud mixer 2 with convergent nozzle 5.

Наличие в цилиндрической огневой голов₂₀ке стабилизатора обеспечивает устойчивое горение газа в среде с высоким разрежением и концентрацией водяных паров.The presence of a stabilizer in a cylindrical fire head ₂₀ ke ensures stable gas combustion in an environment with a high vacuum and a concentration of water vapor.

Выбранные конструктивные параметры цилиндрической огневой головки обеспечи- 25 вают надежную работу горелки в условиях сжигания газа в среде с высоким, разрежением и концентрацией водяных паров.The selected design parameters of the cylindrical firing head 25 ensure reliable operation of the burner under conditions of gas combustion in a medium with high, rarefaction and concentration of water vapor.

Claims

(54) GAS BURNER The invention relates to the field of furnace heat engineering, in particular, to burning gas devices — gas burners operating under high vacuum conditions and an atmosphere of water vapor. A gas burner is known, contains an injection mixer with an aao nozzle and a shell with a confusing nozzle coaxially mounted around the periphery of the mixer, communicating at the inlet with the atmosphere. The design of such a gas burner does not ensure a steady burning process and, consequently, gas burning in a medium with high rarefaction and atmosphere vapors, since there is no complete mixing of the secondary air with the gas mixture, and the injecting flow of secondary air removes the torch from the burner. The aim of the invention is to increase the efficiency of P1BH (x; incineration. This is achieved by the fact that the proposed gas burner is equipped with a cylindrical firing head mounted on the outlet section of the mixer behind the stabilizer, which is in the form of 1yur (transducer) and stretched from the outside. sections of the head and the nozzle of the shell, respectively, at distances equal to one and one and a half diameters of an ogvevoy head. At the | mg, 1 the proposed head is presented, general view: in Fig. 2 - section A-A va of Fig. 1. The gas burner contains a nozzle 1 vvin Burner in ishkektsiony mixer 2 with a cylindrical fire head 3 in its output section. Inside stabilizer head 3 there is a stabilizer 4 for burning, which is right in the form of a perforated transverse partition. Atmosphere. For fi & san mix 2 in the shell with a cowhide blast 5th school 5 serve the ventilation stitches 6. The primary and secondary air flow is controlled by control valves 7 and 8. The burner works with following way. Primary air is injected through the orifices of the regulating valve 7 by the gas jet emanating from CTA 1. I shift the gas and the primary air in the mixer

2. Formed gas-air mixture from mixer 2 flows. through a stabilizer 4 into a cylindrical firing head 3 within which the gas-air mixture is replaced. The missing air for tulle gas combustion is injected due to the dilution of the nauseous device through the regulating flap 8 and enters the flare through a coaxially mounted on the periphery of the mixer 2 a shell with a confusing nozzle 5. The stabilizer in the cylindrical ronO ke ke ensures a stable gas burning in the medium high vacuum and water vapor concentration. The chosen design parameters of the cylindrical fire head pave the ball for reliable operation of the burner under the conditions A I F A I i h H / 7 d of gas combustion in a medium with high rarefaction and concentration of water vapor. Claims of the invention: Gas burner, containing an injecting mixer with a gas soip and a combustion stabilizer and a shell coaxially mounted on the periphery of the mixer with a confusing nozzle. Provided at the inlet with the atmosphere, characterized in that, in order to increase the combustion efficiency, it is equipped with a cylindrical firing head mounted on the exit section of the mixer behind the stabilizer, made in the form of a perforated transverse partition, and located from the output sections of the head and the nozzle of the shell, respectively distances of one and one and a half times the diameter of the fire head. Sources of information, tfinstvu into account during extrusion 1. Arseev A.V. Combustion of natural gas. M., Metallurgizdat, 1963, p. 217, fig. 9-2.