SU1295161A1 - Ventilation device - Google Patents

Abstract

The invention relates to a technique of ventilation and allows to increase the efficiency of air supply to the working area. In the chamber 6 of the supply air at the wall opposite to the vertical channel (VK) 7, the air heater 9 is located. The cross-sectional area of the VK 7, having a common wall with a vertical duct 2, is less than 1/5 of the cross-sectional area of the chamber 6. On the wall of the VK 7, the curvilinear visor 10 is installed, which is turned with a concave surface toward the working area and located above the chamber 6 As a result of the movement of the preheated air through the VC 7, the gravitational pressure is increased to overcome the azrodynamic resistance, the drying of the overlap 5 is ensured and the heating of the cold air in the duct 2 is enhanced. (L

Description

The invention relates to ventilation and can be used to supply fresh air to rooms for various purposes.

The purpose of the invention is to increase the efficiency of air supply to the work area.

The drawing shows the device, a longitudinal section.

ruzhu. Through the walls of the exhaust air ducts 11, made of heat-conducting air, there is an intensive transfer of heat from the exhaust air to the outside supply air, which enters the vertical duct 2. At the same time, heat transfer occurs through the walls of the vertical duct 7, which also has a heat propeller abundant condensation in the air intake G of external air, a vertical box 2 communicating with it, connected to it, communicated respectively with working 3 and upper 4 zones in of the fitted room 5, the supply air chamber 6 and the vertical channel 7, which have a common wall 8 with the duct 2, an air heater 9 and a curved visor 10, facing a concave surface towards the working zone 3 and located above the fresh air chamber 6, the air heater 9 is located in the supply air chamber 6 at its wall opposite to the vertical channel 7, the visor 10 is mounted on the wall of the vertical channel 7 with the possibility of rotation, and the vertical channel 7 has an area. F of the cross section is less than 1/5 of the area f of the cross section of the supply air chamber 6. Air ducts 11 of exhaust air from room 5 are placed in a vertical duct 2, the walls of which are heat conductive, combined in the upper part of room 5 with each other with a collector 12 connected to exhaust vent 13. Under duct air exhaust ducts 11 are installed condensate.

The device works as follows.

Under the action of wind and gravitational pressure, the outside air enters through the air intake 1 into the vertical duct 2, where it is moved from top to bottom between the air ducts 11 of the exhaust air. Under the action of gravitational pressure and dilution created by the deflector 13, the internal air of room 5, withdrawn from the lower zone of room 5, where the highest concentrations of gases and moisture are observed, moves upward through the exhaust air ducts 11 and is thrown out.

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gs on the outer surface of the vertical duct 2, since the greatest amount of condensate is falling out of humid air on a cold surface with a decrease in air velocity.

During condensation, heat of vaporization is released, which increases the heating of the supply air. The abundant moisture condensation on the outer surface of the vertical duct 2 reduces the possibility of moisture condensation on the inner surface of the air extractor 11g 11, which prevents the danger of their blockage when the condensate freezes. Condensed moisture on the outer surface of the vertical box 2 flows

in tray 14. 30 I

Further, the outside air is heated.

using the preheater 9 and through the curved visor 10, it is directed to the working zone 3 of the room 5. A part of the heated air enters the vertical channel 7 and under the action of convective currents moves to the upper zone 4 of the room 5, providing ventilation to the upper zone 4. As a result movement of the heated air through the vertical channel 7 increases the gravitational pressure to overcome the aerodynamic drag, 45 provides drying of the room 5 and increases the heating of the cold in Air in a vertical box 2.

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Claims (2)

Invention Formula A ventilation device containing an air intake for external air, a vertical duct communicated with it, connected to the latter and communicated respectively to the working and upper zones of the ventilated room, the fresh air chamber and ruzhu. Through the walls of the exhaust air ducts 11, made of heat conducting air, there is an intensive transfer of heat from the exhaust air to the outside supply air coming in along the vertical duct 2. At the same time, heat transfer occurs through the walls of the vertical channel 7, which are also heat-conducting with abundant condensation of moisture. 0 g on the outer surface of the vertical duct 2, since the greatest condensate loss from humid air on a cold surface decreases the speed of air movement. During condensation, heat of vaporization is released, which increases the heating of the supply air. The abundant condensation of moisture on the outer surface of the vertical duct 2 reduces the possibility of condensation of moisture on the inner surface of the air of the outlet breeders 11, which prevents the danger of their blockage when the condensate freezes. Condensed moisture on the outer surface of the vertical box 2 flows in tray 14. 0 I Further, the outside air is heated. using the preheater 9 and through the curved visor 10, it is directed to the working zone 3 of the room 5. A part of the heated air enters the vertical channel 7 and under the action of convective currents moves to the upper zone 4 of the room 5, providing ventilation to the upper zone 4. As a result the movement of heated air through the vertical channel 7 increases the gravitational pressure to overcome the aerodynamic drag, 5 provides drying of the room 5 and increases the heating of the cold in zduha vertical duct 2. five 0 50 Invention Formula A ventilation device containing an external air intake, a vertical duct with it, connected to the latter and communicated respectively with the working and upper zones of the ventilated room, the fresh air chamber and 312951614 a vertical channel that has a common wall in the chamber of the bom; a common wall, an air heater at its wall, an air duct and a curved curved direction opposite to the vertical channel; a specimen facing the concave surface is installed on the wall with a final to the working area and is located 5 with the possibility of rotation, and above the fresh air chamber, the ticalp channel has an area different from that in the river section less than 1/5 of the area in order to increase the efficiency of the cross section no camera pritochno- duhopodachi in the work area, podogre- of air.