SU1216576A1 - Arrangement for heat-and-moisture treatment of air - Google Patents

Description

one

The invention relates to the technique of ventilation and air conditioning.

The purpose of the invention is to increase the efficiency of air treatment by reducing the aerodynamic resistance to air flow.

FIG. 1 shows a device for heat and air humidity treatment | in fig. 2 shows section A-A in FIG. 1 in FIG. 3 - rotor visors.

The device comprises a housing 1 with inlet and outlet air nozzles 2 and 3 and a pallet 4 filled with liquid, having pipes 5 and 6 for feeding the liquid and otBo and its excess, and located in housing 1 a rotor 7 with drive 8, consisting of mounted on a horizontal shaft 9 of flat parallel-mounted disks 10, the shaft 9 of the rotor 7 is located at the level of the liquid. The rotor 7 is mounted for rotation along the air flow, horizontal separation plates 11 and 12 are installed above the liquid surface at the inlet and outlet zduha, and the rotor 7 is provided with curved at its diameter protective visors 13 and 14, installed in the area of the peripheral disks and adjacent to the horizontal plates 11 and 12.

In order to reduce the leakage of untreated air, a protective visor 15 is installed in front of the rotor 7 in the upper part of the housing 1.

Studs 16 and washers 17 are provided to provide a predetermined gap between the disks 10.

Water is used as a fluid in this device.

The device works as follows.

The processed air enters through the inlet 2 into the housing 1 in the radial direction to the rotary knobs with the disks 10 and passes into the slotted channels between them to exit through the connecting rod 3. When the disks 10 are rotated by the actuator 8, their lower part is constantly water, due to which their surface is wetted, and the air interacts with a thin film of water. The disks 10 must be made of a well-wetted material, such as duralumin or plastic with rough

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with a thickness of 0.5-1 mm. The efficiency of air treatment is influenced by the rotor speed, the air velocity in the slot channels 5 and the surface area of the discs per unit of processed air, which depends on the gap between the discs and on the living section for the passage of air. Equal to 10 dimensional wetting of the disk surface is provided at a speed of 3–20 rpm. The air velocity in the living section of the rotor 7 is limited by the condition of dropping the droplets from the surface of the disks 10 and their removal outside the rotor. It was established experimentally that the air velocity may increase with a decrease in the melody gap by discs due to a decrease in 20 turbulence of the air flow.

and when the rotor 7 rotates through the air flow, as this contributes to the spreading of the film over the surface of the disks. To obtain the values of the coefficient of efficiency 25 0.8 - 0.9 should

use disks with a diameter of 450 mm and more, installed with a gap of 2 - 3 mm. To increase the specific heat transfer from the surface unit of the disks, from the air flow side and

increase the productivity of the apparatus with the same dimensions and lower metal consumption, it is advisable to significantly raise the axis of the shaft 9 above the level of water and the level of water at which the liquid film spreads

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over the entire surface of the disks and there is no decrease in the efficiency of air treatment, to take in accordance with the SRI with experimental data within 20–70 mm from the bottom of the disks. However, at the indicated positions of the rotor axis and the water level, an intensive formation of

45 waves on the surface of the water, which is accompanied by disruption and removal of droplets, therefore, two horizontal visors 13 and 14 are installed at the air inlet and outlet in the pan.

 The lower visors are located directly above the surface of the water. And reduce the wave formation in the sump, and the upper goats, which are located 40-50 mm above the lower ones, prevent air from moving in the lower part of the rotor and prevent dripping from the surface of the water. According to the conditions of manufacturing technology, the gap

31

between the outermost discs and the side walls of the casing is larger than the gap between the discs, which leads to a sharp increase in air turbulence in this zone and the disruption of the droplets from the outermost discs. Therefore, the upper and side gaps overlap with a visor 15 and curved in diameter / 10 10 / / /

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The rotor arms with protective visors 13 and 14, which closely but not touch, adjoin the extreme plates of the rotor, closing them from the air flow, and lower part slightly lower than the water surface, which level is maintained by pipelines 5 and 6.

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VNIIPI Order 988/48 Circulation 650 Subscription Branch ShSh Patent, Uzhgorod, ul. Project, 4

FIG. 3

Claims (1)

A device for heat and moisture treatment of air, comprising a housing with inlet and outlet air nozzles and a tray filled with liquid, having a piping rotor with an actuator, consisting of flat parallel mounted disks mounted on a horizontal shaft, wherein the rotor shaft is located above the liquid level, characterized in that that, in order to increase processing efficiency by reducing aerodynamic resistance to air flow, the rotor is mounted to rotate in the air flow above the surface dkosti horizontal separation plate installed on the air inlet and outlet, and the rotor is provided on its diameter curved visors, mounted in the area i_ _t> 1216576 peripheral rows adjacent discs and for feeding and discharging the fluid 1;