SU1596182A1

SU1596182A1 - Floor-mounted arrangement for distribution of influent air

Info

Publication number: SU1596182A1
Application number: SU884441379A
Authority: SU
Inventors: Вольдемар Робертович Таурит; Светлана Викторовна Баканова
Original assignee: Ленинградский инженерно-строительный институт
Priority date: 1988-06-14
Filing date: 1988-06-14
Publication date: 1990-09-30

Abstract

Изобретение позвол ет стабилизировать скоростное поле истекающего потока воздуха при раздаче его в насыпной слой. Выпускное окно 2 выполнено в подпольном патрубке (П) 1 на уровне пола 3 помещени . Верхние основани 5 распределительной решетки 4, выполненной в П 1, размещены в плоскости окна 2. Центральна горизонтальна квадратна пластина 6 установлена в П 1 под решеткой 4 с возможностью осевого перемещени . Решетка 4 выполнена в виде концентрично усановленных с шагом между ними равносторонних усеченных пирамид. Меньшие основани пирамид размещены в П 1 с образованием пирамиды с углом при вершине, расположенным в плоскости окна 2 и равным 50-70°. Шаг между пирамидами и сторона пластины 6 составл ют соответственно 0,1-0,15 и 0,2-0,3 ширины окна 2. Пластина 6, перемеща сь вдоль центральной оси, регулирует количественное соотношение воздуха между центральными и периферийными каналами. При увеличении доли общего расхода, направл емого в периферийные каналы, соответственно возрастает скорость фильтрации у основани насыпи. Это позвол ет получить практически равномерное поле скоростей у основани насыпи и исключить застойные зоны. 2 ил.The invention makes it possible to stabilize the velocity field of the outflowing air stream when dispensing it into the bulk layer. The exhaust port 2 is made in the underground socket (P) 1 at floor level 3 of the room. The upper bases 5 of the distribution grid 4, made in II, are located in the plane of the window 2. A central horizontal square plate 6 is installed in II 1 under the grid 4 with the possibility of axial displacement. Lattice 4 is made in the form of equilateral truncated pyramids arranged concentrically with a step between them. The smaller bases of the pyramids are placed in P 1 with the formation of a pyramid with an apex angle located in the plane of window 2 and equal to 50-70 °. The step between the pyramids and the side of the plate 6 are respectively 0.1-0.15 and 0.2-0.3 width of the window 2. The plate 6, moving along the central axis, controls the quantitative ratio of air between the central and peripheral channels. With an increase in the proportion of the total flow directed to the peripheral channels, the filtration rate at the bottom of the embankment accordingly increases. This makes it possible to obtain a practically uniform velocity field at the base of the embankment and to exclude stagnant zones. 2 Il.

Description

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Claims

Claim

A device for floor distribution of fresh air in a room containing an underground pipe with an exhaust window made in the pipe at the floor level of the room, a distribution grid located in the pipe, the upper bases of which are placed in the window plane, characterized in that * in order to stabilize the speeding field the air flow during the distribution of air in the bulk layer, the device further comprises a central horizontal square plate installed in the pipe under the grid with the possibility of axial moving, while the lattice is made in the form of equilateral truncated pyramids, which are concentrically arranged with a pitch between them, the smaller bases of which are placed in the nozzle with the formation of a pyramid with an apex angle located in the plane of the window and equal to 50-70 ?, and the step between the truncated pyramids and the side of the plate is respectively 0.1 - —0.15 and 0.2—0.3 window widths.

1596182