SU1079962A1 - Air-thermal curtain - Google Patents

Abstract

1. AIR HEAT CURTAIN, containing fan devices with air outlets placed on both sides of the opening with air outlets oriented at the opening plane with their outlet openings, with the aim being to increase the opening the efficiency of the air curtain, each fan device is equipped with a double suction fan with two impellers divided by a hollow disk mounted on the same shaft and a hollow partition, placed in the plane of the disk, the outlet openings are made in the form of slots, and the air exhaust device is equipped with an internal hollow V-shaped partition, dividing it into channels for the passage of warm and cold air, the channel of warm air is oriented inside the room, and cold air - outside. The veil according to claim I, characterized in that the internal cavities in the disk and partitions are filled with thermal insulation. (Lfig. 1 ^ coCD Gito

Description

The invention relates to a technique of ventilation and can be used to protect technological openings from blowing cold air flows and to protect rooms from overcooling. The air-heat-air curtain is known, which contains fan-mounted devices on both sides of the air outlet with devices that are oriented by their outlet openings at an angle to the aperture plane, while the fan devices are displaced by the height of the aperture 1. A disadvantage of the known curtain is low efficiency, caused by excessive heat consumption when supplying only warm air, and insufficient protection of openings against the penetration of cold air by the wind. The purpose of the invention is to increase the efficiency of the curtain. The goal is achieved by the fact that in an air-heat curtain containing fan devices located on both sides of the aperture with air outlet devices oriented by their outlet openings at an angle to the plane of the aperture, the fan devices are displaced along the height of the aperture, each fan The device is equipped with a double suction fan with two impellers divided by a hollow disk mounted on the same shaft and a hollow partition placed in the plane of the disk e apertures formed as slits, and an air tool provided with the inner wall of the hollow V-shaped dividing it into channels for the passage of hot and cold air, the warm air path of oriented indoors, and the cold air channel - to the outside. Internal cavities in the disk and partitions can be filled with thermal insulation. FIG. 1 shows the scheme of release of jets in a vertical plane; in fig. 2 - the same in terms of; in fig. 3 - option layout of the veil; in fig. 4 - curtain, general view; in fig. 5 - curtain, side view. The device comprises fan devices 2 and 3 placed on both sides of opening 1 with air outlet devices 4 oriented by their outlets 5 in the form of slots at an angle to the plane of opening 1, while fan devices 2 and 3 are displaced along the height of opening 1. Each fan device 2 and 3 is equipped with a double-sided suction fan b with two impellers 7 divided by a hollow disk 8 mounted on one shaft 9 and a hollow partition 10 placed in the plane of the disk 8. The air outlet The hub 4 is provided with a V-shaped inner hollow partition 11, dividing it into channels 12 and 13 for the passage of warm and cold air. The warm air duct 12 is oriented inside the room, and the cold air channel 13 is facing out. The internal cavities in the disk 8 and partitions 10 and 11 are filled with thermal insulation 14. A heat exchanger 16 with a soft insert 17 is connected to the fan 6 through the confuser 15. The curtain is assembled with the supporting frame 18 on which acoustic panels (not shown) are mounted. The motor 19 and the fan 6 itself are mounted on vibration bases (not shown). The holes 20 serve to take in cold air. Air jets 21 restrict a certain amount of air between them, which serves as air tambour 22. The device operates as follows. When the fan 6 is operating, two air streams having different temperatures are sucked. For this, a heat exchanger 16 is installed on one side of the fan, and the other is open to cold air. In the fan, these streams are divided between each other by a disk 8 and an internal partition 10 mounted on one shaft 9. To reduce heat loss and reduce heat exchange between the flows transported, the disk 8 and the partition 10 are hollow and filled with thermal insulation 14. Venti, 1 tor pumps these streams into the air outlet device 4, in which the V-shaped inner partition 11 is installed, filled with thermal insulation 14. This partition 11 is a continuation of the partition 10 mounted on the shaft 9 of the fan 6, therefore The sound streams, which are not in contact with each other, are distributed through the outlet openings 5 to the zone of the protected opening 1, while the cold air jet 21 is directed at some angle to the plane of the opening 1 outside and serves to protect the jet from the cold outside air. The cold jet is directed with the calculation of the emission of cold air from the displacement. The stream of warm air is directed at a certain angle to the aperture plane inside the room and is intended for external heating of the air that has broken through the external stream of cold air. Besides . of this, the air-thermal curtain is designed in such a way that the air jets 21 of the opposite curtains are directed diagonally in the plane of the serviced shrinkage opening 1 towards each other, limiting among themselves some air volume serving as an air tambour 22. The air tambour 22 is additional barrier to the wind and serves to increase the protective properties of the veil, since in a small volume of air vestibule 22 an artificial pressure is created by overpressure due to the pressure of the injected jets 21. At the same time e jet 21 protivolezhashih curtains you

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being dropped - each in his zone and not interfering with one another.

The advantage of the proposed device is to save heat due to the fact that air is supplied through two channels and the cold stream prevents the penetration of cold air into the room, and the stream of warm air is directed into the interior of the room, preventing the release of heat from it.

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Claims (2)

1. AIR-HEAT CURTAIN containing fan devices located on both sides of the opening with air outlet devices oriented by their outlet openings at an angle to the opening plane, while the fan devices are offset along the opening height, characterized in that, in order to increase the curtain operation efficiency, each fan unit is equipped with a double-suction fan with two impellers, separated by a hollow disk mounted on one shaft, and a hollow partition placed In the plane of the disk, the outlet openings are made in the form of slots, and the air outlet device is equipped with a V-shaped internal hollow partition dividing it into channels for the passage of warm and cold air, the warm air channel being oriented inside the room and the cold air channel outward. 2. The curtain according to π. 1, characterized in that _ the internal cavities in the disk and partitions sg are filled with thermal insulation. SU „„ 1079962> ί