SU907357A1 - Apparatus for feeding forced air - Google Patents

Description

(54) DEVICE FOR FEEDING SUPPLY

AIR

one

The invention relates to the technique of ventilation and air conditioning and can be used in rooms for various purposes.

A device for supplying fresh air is known, comprising a housing with inlet and outlet windows, made in its opposite walls, and a movable valve 1 overlapping the outlet window.

However, this device does not provide automatic regulation of air flow.

The purpose of the invention is automatic regulation of air flow.

This goal is achieved by the fact that one of the walls of the body is made of elastic material and is kinematically connected to the gate.

The drawing shows a device for supplying fresh air, a general view.

The device comprises a housing 1 with inlet and outlet windows 2 and 3, made in its opposite walls, and a movable valve 4 overlapping the output 3, one of the walls of the housing 1 made of elastic material and kinematically connected with the valve 4.

The principle of operation of the device is as follows.

When changing the air flow from Gmin

up to Gmax air velocity respectively

varies from Vmin to. but in order to

air velocity in the working area

5 remained approximately constant, it is necessary to maintain a constant speed on the expiration of the device, which can be achieved by changing the area of the output window 3.

The supply air at the flow rate п ах ° ° рез cut the inlet window 2 enters the housing 1, while the elastic wall of the housing 1 under the action of the excess air pressure generated in the housing 1 expands, thereby raising the kinematically connected damper 4 and opening the exit window 3 as much as possible. A decrease in the air flow rate to Gmin leads to a drop in overpressure in the housing 1 and the elastic wall takes up the position at which the damper is lowered, leaving the exit window 3 minimally open.

Thus, when the supply air flow varies, the area of the exit window automatically changes, and this ensures that the air velocity is controlled to flow out.

Claims (1)

The proposed device allows to improve the technical and economic performance of the air distribution system and improve the quality of maintaining the parameters of the air in the room served by the ventilation and air conditioning systems with quantitative regulation. Invention Formula A device for supplying fresh air, comprising a housing with inlet and outlet windows made in its opposite walls, and a movable valve overlying the outlet window, characterized in that, in order to automatically control the air flow, one of the housing walls is made of elastic material and is kinematically connected with flap. Sources of information taken into account in the examination 1. USSR Author's Certificate no. 577367, cl. F 24 F 13/08, 1975. / 2