SU1672148A1 - Device to control flow rate of air - Google Patents

Abstract

The invention relates to ventilation and serves to dispense and automatically control the flow of air. The purpose of the invention is to improve performance. The device for controlling the flow of air comprises a housing 1 and a self-closing valve arranged therein, made in the form of a rotary flap 2 mounted on an axis 3 fixed to wall 4 of housing 1. The wall 5 is curved, movable and equipped with a curvature change mechanism. The device is provided with a curved shape case 6 with inlets 7 and a drainage pipe 8 located on the outside of the wall 5. The mechanism is made in the form of a bimetallic actuator 9 with levers 11, and 11 on the periphery of the wall 5. 1 hp f-ly, 1 ill.

Description

The invention relates to ventilation and serves for the distribution and automatic control of air flow.

The circuit of the invention is an increase in performance.

The drawing shows the device, a general view.

The device for controlling the flow of air comprises a housing 1 and a self-closing valve arranged therein, made in the form of a rotary flap 2 mounted on an axis 3 fixed to wall 4 of the housing 1 Wall 5 is curved, movable and equipped with a curvature change mechanism.

The device is also equipped with a curved casing 6 with inlets 7 and a drainage pipe 8 located on the outside of the curvilinear wall 5, the mechanism being designed as a bimetallic actuator 9 with levers 10, and holes 11 are made on the periphery of the curvilinear wall 5.

The device is two-way with respect to the plane passing through the mechanism of curvature change. The shutter 2 rests on the stopper 12, the casing 6 is fixed to the wall 5 with screws 13

Between the stitch 5 and the flap 2, in the normal position, a hole 14 is formed for the passage of air, which can vary depending on the position of the flap on the magnitude I. cto of i and 2. x sash 2 and wall 5. Sash 2 is equipped with two counterweights 15 and 16, located at 90 ° relative to each other.

The device works as follows.

When there is no air supply through the housing 1, the flap 2 rests on the restrictor 12, the value of the AND channel 14 is maximum for the passage of air. When serving

air, depending on its quantity, the speed increases, and therefore, the dynamic pressure on the flap 2 increases, it deviates from the horizontal position

at a certain angle, while the living section of the air passage 14 is reduced, which leads to stabilization of the air flow. When the supply air temperature changes, the bimetallic actuator 9 - pr starts to operate and when the temperature decreases, it compresses and through the levers 10 changes the radius of curvature of the wall 5, thereby changing the living section of the hole 14 - the air consumption decreases.

To increase the uniformity of the temperature field in the casing 6 of the device, there are openings 7 for supplying recirculated air, which, under the influence of a jet of air leaving channel 14, is sucked into the main through openings 11. There is an outlet 8. devices.

Claims (2)

A device for controlling the flow of air, comprising a housing and a self-closing valve arranged therein, made in the form of a swing flap. mounted on an axis fixed to one of the walls of the body, with the opposite wall being curved, mounted for movement and equipped with a mechanism curvature changes, characterized in that, in order to improve performance, it is provided with a curvilinear casing with inlets and a drain pipe located on the outside of the curvilinear wall, wherein the mechanism is made in the form of a bimetallic actuator, and on the periphery of the curvilinear wall there are holes . five 2. Device pop. 1, characterized in that it is made two-way with respect to the plane passing through the curvature change mechanism.