SU538939A1

SU538939A1 - Air Spray Method

Info

Publication number: SU538939A1
Application number: SU2125484A
Authority: SU
Inventors: Дмитрий Георгиевич Скалов
Priority date: 1975-04-16
Filing date: 1975-04-16
Publication date: 1976-12-15

Description

Пример осуществлени предлагаемого способа . Проведен летный эксперимент на самолете Ан-2 с серийным опрыскивателем; распыливалась окрашенна вода. Распределение плотности покрыти по поперечному сечению полосы опрыскивани определ лось по методике ВНИИ СХСП ГА: Рабочий отрезок полета выполн лс курсом 220°. Ветер имел направление 230-240° при скорости 3- 3,5 -м/сек. Таким образом имела место бокова составл юща скорости ветра 0,5- 1,2 м/сек, слева по курсу. Эксперимент включал два полета. В первом полете в обеих щтангах были установлены сопла диаметром 9 мм, ц жидкость подавалась в щтанги поровну; общий расход был равен 4 л/сек. Во втором полете в левую штангу было поставлено сопло диаметром 5 мм; в результате отношение расходов через левую и правую штанги составило 1:2.An example of the proposed method. A flight experiment was carried out on an An-2 aircraft with a serial sprayer; sprayed colored water. The distribution of the coating density over the cross section of the spraying strip was determined according to the method of the All-Union Scientific Research Institute of the KhSAPSA GA: the working section of the flight was performed by a course of 220 °. The wind had a direction of 230-240 ° at a speed of 3-3.5 m / s. Thus, there was a lateral component of the wind speed of 0.5-1.2 m / s, on the left along the course. The experiment included two flights. In the first flight, nozzles with a diameter of 9 mm were installed in both shtangs; the fluid was evenly distributed to the threes; total flow was 4 l / s. In the second flight, a nozzle with a diameter of 5 mm was delivered to the left boom; as a result, the cost ratio across the left and right rods was 1: 2.

На фиг. 1 изображено распределение жидкости при равномерной подаче ее в обе штанги (первый полет); на фиг. 2 распределение жидкости при неравномерной подаче жидкости в обе штанги (второй полет).FIG. 1 shows the distribution of fluid with a uniform supply of it in both rods (first flight); in fig. 2 distribution of fluid with an uneven flow of fluid in both rods (second flight).

Как видно из графиков, предлагаемый способ обеспечивает существенное повышение равномерности распределени .As can be seen from the graphs, the proposed method provides a significant increase in the uniformity of distribution.

Claims

1.Air spray method by discharging liquid on both sides of

the plane of symmetry of the aircraft, characterized in that, in order to increase the uniformity of the distribution of the liquid across the width of the spray spraying of the lateral wind

and the leeward side is redistributed depending on the magnitude of the lateral component of the wind speed, reducing the flow rate on the leeward side and increasing it on the leeward side with a constant total flow rate.

2. A method according to claim 1, characterized in that the flow of fluid from the windward and leeward sides is carried out in a ratio, for example, from 1.0 to 0.26 and from 0.26 to 0.5 at

a change in the lateral component of the wind speed from 0 to 1.5 m / s and from 1.5 to 5.0 m / s, respectively.

The source of information taken into account in the examination:

1. I. V. Radchenko and others. “Aircraft AN-2, publishing house“ Transport, Moscow, 1969, p. 377382 (prototype).

Distance Phi.1. I