SU861850A1

SU861850A1 - Injection nozzle

Info

Publication number: SU861850A1
Application number: SU792852982A
Authority: SU
Inventors: Дмитрий Александрович Шатровский; Михаил Иванович Сидоров
Original assignee: Предприятие П/Я А-3513
Priority date: 1979-12-14
Filing date: 1979-12-14
Publication date: 1981-09-07

Description

Изобретение относится к распиливающим устройствам и может быть использовано для сжигания отходов целлюлозно-бумажной промышленности.The invention relates to sawing devices and can be used for burning waste from the pulp and paper industry.

Наиболее близкой по технической сущности и достигаемому результату к описываемой является форсунка, содержащая снабженный выходным соплом корпус с цилиндрическим завихрителем, выходные участки дна винтовых каналов которого выполнены с уклоном в сторону продольной оси корпуса (1 ].The closest in technical essence and the achieved result to the described one is a nozzle containing a housing equipped with an output nozzle with a cylindrical swirler, the outlet sections of the bottom of the screw channels of which are made with a slope towards the longitudinal axis of the housing (1].

Недостаток такой форсунки заключается в низком качестве сжигания из-за неравномерности распределения ₁₅жидкости по сечению факела.The disadvantage of this nozzle is the low quality of combustion due to the uneven distribution of ₁₅ liquids over the cross section of the torch.

Целью изобретения является улучшение качества сжигания путем повышения равномерности распределения топлива.The aim of the invention is to improve the quality of combustion by increasing the uniformity of fuel distribution.

Эта цель достигается тем, что уклон выходных участков дна винтовых каналов в продольном их сечении выполнен по дуге окружности, описанной радиусом, равным (D-2h), из точки, ² /равноудаленной от переднего торца завихрителя и дна винтовых каналов на расстояние, равное упомянутому радиусу, где D - наружный диаметр завихрителя, h - высота винтовых каналов .This goal is achieved by the fact that the slope of the exit sections of the bottom of the screw channels in their longitudinal section is made along an arc of a circle described by a radius equal to (D-2h) from a point ² / equidistant from the front end of the swirl and the bottom of the screw channels by a distance equal to the aforementioned radius, where D is the outer diameter of the swirl, h is the height of the screw channels.

На фиг. 1 изображена предлагаемая форсунка, продольный разрез; на фиг. 2 - завихритель; на фиг. 3 вид А фиг.2;. на фиг. 4 - вид Б фиг. 2; на &иг. 5 - сечение В-В фиг.З (развертка по винтовой линии завихрителя) .In FIG. 1 shows the proposed nozzle, a longitudinal section; in FIG. 2 - swirl; in FIG. 3 view A of figure 2 ;. in FIG. 4 is a view B of FIG. 2; on & ig. 5 is a cross-section BB of FIG. 3 (swirl scan along a helix).

Форсунка содержит снабженный выходным соплом 1 корпус 2 с цилиндрическим завихрителем 3, выходные участки дна 4 винтовых каналов которого выполнены с уклоном в сторону продольной оси корпуса 2. Уклон выход· ных участков дна 4 винтовых каналов в продольном их сечении выполнен по дуге окружности, описанной радиусом, равным (D-2h), из точки, равноудаленной от певеднего торца завихрителяThe nozzle contains a housing 2 equipped with an outlet nozzle 1 with a cylindrical swirler 3, the outlet sections of the bottom 4 of the screw channels of which are sloped towards the longitudinal axis of the housing 2. The slope of the output sections of the bottom of the 4 screw channels in their longitudinal section is made along an arc of a circle described by a radius equal to (D-2h), from a point equidistant from the singing end of the swirl

3,и дна 4 винтовых каналов на расстояние, равное упомянутому радиусу, где D - наружный диаметр завихрителя, h - высота винтовых каналов. Распиливаемая жидкость подается в корпус 2, проходит цилиндрический завихритель 3 и выходит через сопло 1. По уклону в выходном участке дна 4 часть жидкости направляется в сторону оси форсунки, обеспечивая тем самым равномерное распределение жидкости по сечению факела. Благодаря выполнению уклона по указанному выше радиусу, обеспечивается безотрывное течение жидкости по винтовым каналам завихрителя 3 и равномерное распределение по сечению факела.3, and the bottom 4 of the screw channels at a distance equal to the radius, where D is the outer diameter of the swirl, h is the height of the screw channels. The liquid to be sawed is fed into the housing 2, the cylindrical swirler 3 passes and exits through the nozzle 1. On the slope in the outlet section of the bottom 4, a part of the liquid is directed towards the axis of the nozzle, thereby ensuring uniform distribution of liquid over the cross section of the torch. Due to the slope along the radius indicated above, an uninterrupted fluid flow through the screw channels of the swirler 3 and a uniform distribution over the cross section of the torch are ensured.

Claims

The invention relates to dispensing devices and can be used for burning pulp and paper waste. The nozzle is the closest to the technical essence and the achieved result. over the torch section. The aim of the invention is to improve the quality of combustion by increasing the uniform distribution of fuel. This goal is achieved by the fact that the slope of the output sections of the bottom of the screw channels in their longitudinal section is drawn along the arc of a circle described by a radius equal to (D-2h) from a point. equidistant from the front end of the swirler and the bottom of the screw channels for a distance equal to the said radius, where D is the outer diameter of the swirler, h is the height of the screw channels. FIG. 1 depicts the proposed nozzle, a longitudinal section; in fig. 2 - swirl; in fig. 3 view A f.2; „in FIG. 4 - view B of FIG. 2 | on ig. 5 - section bb of FIG. 3 (sweep along a helix swirl). The nozzle contains a body 2 provided with an output nozzle J with a cylindrical swirl 3, the bottom bottom sections 4 screw channels of which are made with a bias towards the longitudinal axis of the body

2. The slope of the output sections of the bottom of 4 screw channels in their longitudinal section is made along the arc of a circle described by a radius equal to (D-2h) from a point equidistant from the single end of the swirler 3 and the bottom 4 screws of the channel to a distance equal to radius, where D is the outer diameter of the swirler, h is the height of the screw channels. The sprayed liquid is fed into the housing 2, a cylindrical swirl 3 passes and exits through the nozzle 1. On a slope in the outlet section of the bottom 4, a part of the liquid is directed towards the nozzle axis, ensuring that most equal molecular weight distribution of the liquid over the cross section of the torch. Due to the inclination along the radius indicated above, a continuous flow of fluid through the screw channels of the curl 3 and a uniform distribution over the cross section of the torch is ensured. Invention Nozzle comprising a housing equipped with an output nozzle with a cylindrical swirler, the output sections of the bottom of screw channels of which are made with a slope towards the longitudinal axis of the housing, which is so that, in order to improve the quality of combustion by increasing the uniformity of fuel distribution, the slope of the output the sections of the bottom of the screw channels in their longitudinal section are made along an arc of a circle described by a radius equal to (D-2h) from a point equidistant from the front end of the swirler and the bottom of the screw channels on a distance equal to the radius mentioned, where D is the outer diameter of the snagging, h is the height of the screw channels. Sources of information taken into account in the examination of 1, Carabin A, I, and others. Combustion of liquid fuel in industrial installations, M ,, Metaplurgi, J966, s, 143, fig. 55. Axis / хх о / п and Фие.2.

Phi.

Bb

FIG.