SU1003918A2

SU1003918A2 - Air-type power injection nozzle

Info

Publication number: SU1003918A2
Application number: SU813354147A
Authority: SU
Inventors: Петр Александрович Вешкурцев
Original assignee: Усольское производственное объединение "Химпром"
Priority date: 1981-11-13
Filing date: 1981-11-13
Publication date: 1983-03-15

Description

. (54) ВОЗДУШНО-МЕХАНИЧЕСКАЯ ФОРСУНКА. (54) AIR MECHANICAL SPRAYER

Изобретение относитс к устройствам дл тонкодисперсного растЕыпивани больг ших количеств малов зких жидкостей, может быть использовано в химической, пище вой, строительной, энергетической и других отрасл х промышленности дл тонкодисперсного распыливани нев зких жидкостей и растворов.The invention relates to devices for the fine dispensing of large amounts of low-viscosity liquids, can be used in the chemical, food, construction, energy, and other industries for finely dispersed non-viscous liquids and solutions.

По основному авт. св. № 640758 известгаа воздушно механич:еска форсунл fo ка, содержаща охватывающую корпус жидкостную центробежную насадку с выходным каналом, размещенную в корпусе цилиндрическую вставку с утогацением на конце, образующую с ним кольцевой канал is дл выхода возлуха, расположенный на выходном торце вставки насадок, имеющийAccording to the main author. St. No. 640758 airborne mechanically mechanized: ses foil nozzle containing a centrifugal liquid nozzle with an output channel, a cylindrical insert at the end located in the case, forming an annular air outlet channel with it, located at the exit end of the nozzle insert,

кольцевую камеру в форме полого тора, переход щего на выходе в плоский диск, перпендикул рный оси форсунки Г 1 ). J an annular chamber in the form of a hollow torus, which, at the exit, transforms into a flat disk perpendicular to the axis of the nozzle (T 1). J

Однако, несмотр на простое конструктивное всполнение. Высокую производительность при хорошем качестве распыла.However, despite the simple constructive completion. High performance with good spray quality.

в процессе работы форсунки возникают конвенционные потоки распыленных частиц жидксхп-и, вызванные эжекцнонным эффектом воздушного сопла форсунки. При этом происходит постепенный нарост распыливаемого вещества на нижнюю часть форсунки. Это приводит к снижению качества распыла , что в свою очередь требует остановки форсунки и ее чистки.during the operation of the nozzles, conventional flows of sputtered particles of liquid-xcr arise, caused by the ejector effect of the air nozzle of the nozzle. When this occurs, the gradual growth of the sprayed substance on the lower part of the nozzle. This leads to a decrease in spray quality, which in turn requires stopping the nozzle and cleaning it.

Цель изобретени - улучшение эксплуатационных качеств форсунки.The purpose of the invention is to improve the performance of the nozzle.

Поставленна цель цосгигаегс гем, что воздушно-механическа форсунка снабжена расположенным во вставке и образующем кольцевой канал с ней и насадком обтекателем с отверсти ми, сообщающимис с полостью вставки, npibчем последн выполнена с осевым отверстием дл прохода сжатого воздуха.The aim of the patient is that the air-mechanical nozzle is provided with an inlet and forming an annular channel with it and a nozzle with a nozzle that communicates with the cavity of the insert, the latter being made with an axial hole for the passage of compressed air.

На чертеже изображена воздушномеханическа форсунка, разрез.The drawing shows the air nozzle section.

Claims

The nozzle has a liquid centrifugal nozzle 2 enclosing the body i with an output channel 3 and a cylindrical insert 4 with a thickening at the end disposed in the body 1 forming an annular channel 5 with it for output, and the air ending with a nozzle 6, In addition, the nozzle is equipped with an outlet an end face of an insert 4 by a nozzle 7, having an annular chamber 8 in the form of a hollow torus, passing at the exit to a flat disk 9, a perpendicular to the nozzle axis. Nozzle 2 has two tangential inlets 10 for a sprayed liquid. In addition, the nozzle is provided with a channel 11 with it and a nozzle 7 with a fairing 12 with holes 13 communicating with the cavity of the insert 4, which is connected with the cavity of the insert 4, the latter being made with an axial hole 14 for the passage of compressed air. 20 Air-mechanical nozzle em as follows. Compressed air from the annular channel 5 enters the annular chamber 8, where, making a loop-like movement and crossing the inlet stream, it is intensively turbulized and rushes out of the air annular nozzle 6 as a flat disk from the nozzle. At this time, the fluid in two tangential DZ calibrated inputs 10 under the action of 1-3 MPa is fed into the liquid nozzle 2, where it twists and from the output channel 3 in the form of a thin film with a greater speed at an angle of 40-45 is directed to the air flow, where there is a further atomization of the liquid and the entrainment of the smallest droplets into the surrounding volume. Compressed air through the hole 14 of the insert 4 flows through the holes 13 of the flap 12 into the annular channel 11, securing the SVP 6 and the nozzles 7 from sticking to the pouring medium. The proposed design improves the performance of the nozzle, increases its run time, eliminates the build-up of sprayed air on the outer surface of the nozzle of the air nozzle. The invention of the air-mechanical nozzle according to ed. St. No. 640758, excellent. so that, in order to improve the performance of the nozzle, it is equipped with an located one; in the insert and forming an annular channel with it and a nozzle a fairing with holes communicating with the cavity of the insert, the latter being provided with an axial hole for the passage of compressed air. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 640758, cl. B O5 B, 7/10, 1977 (prototype).