Arrangement for thermo moist air processing

FIELD: the invention refers to technique of ventilation and air conditioning.

SUBSTANCE: arrangement for thermo moist air processing has a sprinkler chamber with a tray for water based in air channel with ventilator, its discriminator is a cross turbine with blades out of hydroscopic material having contact with liquid mirror in the tray. It is located in the sprinkler chamber transversely to the flow on the horizontal shaft. At that segments out of hydroscopic material are located in parallel to the air flow on the blades of the cross turbine at the distance of 10-20 centimeters from each other and the horizontal shaft of turbine has a breaking arrangement for regulating promptness in accordance with the time.

EFFECT: simplification of construction.

 

The invention relates to a technique, ventilation, and air conditioning and can be used for humidification and air cooling in adiabatic conditions.

Known contact apparatus for heat-moisture treatment of air, in particular irrigation nozzle chamber (TFR). Structurally it is in the form of a rectangular parallelepiped (box), inside are the horizontal and vertical piping (risers), the last mounted injector. The lower part of the chamber is made in the form of a tray and serves as a sink for water. The camera is equipped with a centrifugal fan for air supply and a pump for supplying water.

When the adiabatic humidification uses recycled water. Water from the sump is drawn by the pump under pressure ˜150...300 kPa is served piping to the nozzles in a spray form is introduced into the air stream. About ˜3% of the sprayed moisture evaporates in the air and moisturizes it, and the bulk ˜97% served down, flows back into the sump, where again is routed by using a mechanical pump to the nozzles for spraying, etc.

The disadvantage of this design is the increased consumption of electricity. She takes on the fan drive, and the drive of the water pump.

Water line characterswithspaces hydraulic resistance, due to the large number of mechanical injectors. Their number may be closer to ˜700 pieces.

Also known for the construction of the contact device - horizontal mechanical absorber with the spray rolls [2, s]. The apparatus may be made in the form of a horizontal rectangular or cylindrical body with caps on the ends, in which are mounted the bearings for the shaft, and connections for inlet and outlet gas (air). On a horizontal shaft mounted rollers vane type or disks. When applying rolls their shaft is located across the axis of the device, when using a drive shaft is mounted along the axis of the apparatus. Rollers (wheels) of the lower part partially immersed in the liquid, which is filled with part of the housing, when the shaft they capture the fluid and sprayed it on the volume of the apparatus. The shaft is driven by an electric motor through V-belt transmission. Gas (air)which is subject to moisture and can be cleaned through the nozzle passes along the body where contact with the sprayed liquid. This can cause the moisture of the air (gas) and clean it from getpriority impurities.

The disadvantages of mechanical absorbers are:

1. The design complexity, increased intensity.

2. High consumption of electricity, which is consumed as a circulation who is ear thread and the rotating shaft with blades.

Also known construction contact heat and mass transfer apparatus with irrigated nozzle of a thin hygroscopic materials [1, s-200]. Nozzle (cassette with aspen shavings or corrugated sheets of cardboard, canvas fabric, etc. is placed in the air flow and wetted by water, which is supplied at its top by means of a pump. The surface of the nozzle is quickly becoming wet even in case of incomplete wetting her irrigating water. However, this design also uses a pump to supply water for humidification, i.e. electricity is consumed for water recycling. Another disadvantage is the large aerodynamic resistance of the air channel, which leads to increased energy consumption during fan operation.

The invention solves the problem of preserving the health of the device for heat-moisture treatment of air while simplifying the structure, in particular the possibility of moisture air under adiabatic conditions in the absence of water lines, pump for water supply and drive mechanism in it.

To achieve the technical result in irrigation camera is positioned perpendicular to the flow on a horizontal shaft without driving mechanism crosswise turbine with blades of hygroscopic material available and contact with the mirror of the liquid in the pan, on the cruciform blades of the turbine are segments of the hygroscopic material parallel to the flow of air at a distance of 10-20 cm from each other, and a horizontal shaft turbine has a brake device for adjusting the number of turns in time.

Also the blades of the turbine can be deployed along a helical line and their contact with the liquid mirror corresponds to this line. This allows to reduce the length of the simultaneous contact of the blade with mirror liquid.

The rotation of the turbine provides apparatus moving along the air due to the dynamic pressure developed radial fan.

Contact of the turbine blades with mirror liquid in the pan when the rotation of the turbine provides the liquid spray in the air flow and constant humidity hygroscopic her blade.

Due to the presence of splashes and droplets wet the surface of the turbine blades in the air stream, the air is subjected to heat and moisture treatment. Because the camera uses recycled water, the air and o adiabatically get damp and cool.

Humidification of the air, such as moisture content and relative humidity can be adjusted by changing the number of revolutions of the turbine (with brakes), changes in surface area of the turbine (by changing Chi the La segments of hygroscopic material, located parallel to the flow of air at a distance of 10-20 cm from each other).

Closest to the claimed invention is an irrigation chamber, described above.

Position in the drawing represent:

1 - air channel; 2 - body; 3 - blade turbine; 4 - turbine shaft; 5 - pan; 6 - float; 7 - guide plate; 8 - eliminator; 9 - sockets; 10 - flexible insert; 11 is a radial fan.

Device for heat-moisture treatment of air contains placed in the air duct 1 case 2 with the pallet 5, where with the help of the float 6 is maintained at a constant water level. Inside the housing is perpendicular to the side walls of the chamber cross flow turbine on a horizontal shaft 4, consisting of the blades 3 of the hygroscopic material (for example, gauze, canvas etc). The turbine blades are perpendicular to their surfaces are segments of the same hygroscopic material at a distance of 10...20 cm from each other.

The lower part of the blade is immersed in water for a few mm At the entrance to the building (the camera) are the guide plate 7 that allows you to change the direction of air flow against the turbine blades, the output is the drip pan 8 to eliminate entrainment of liquid droplets from the air stream. On the face of the camera are the pipes 9 the La connection to air ducts.

To the inlet pipe through a flexible insert 10 is attached to the radial fan 11.

Device for the heat and humidity of the air handling works as follows.

The air by means of a radial fan 11 flows into the air channel 1 camera 2. This cross-shaped turbine blades of the hygroscopic material 3 is driven into rotation due to the dynamic pressure of the air flow and friction forces. During the rotation of the lower part of the turbine blade is immersed for a few mm down from the mirror of liquid (water) in the pan 5, and the output from it ejects the liquid in the air stream and the neighboring blades, that is, the water spray in the air and at the same time the moisture absorbent material (gauze) blades. When this air is humidified by the evaporation of some of the droplets of the sprayed water and the film by contact of the air stream with wet hygroscopic material cruciform blades of the turbine.

Not evaporated water droplets circulate back down into the sump, i.e. in the chamber recycling of the aqueous phase. Its temperature will stabilize at the temperature of the wet thermometer air. Heat-moisture treatment of air under these conditions corresponds to the regime of adiabatic humidification and cooling of air. It occurs when the horizontal movement of air is Otok along the camera due to the work of the radial fan. The number of revolutions of the turbine is adjusted (reduced) by means of a braking device on its shaft (the drawing is not specified).

Another modification of cross turbine can be a design in which the blades have a spiral shape, i.e. they are deployed along a helical line and their contact with the liquid mirror match this line. This design of the turbine can increase its speed at a constant flow rate and air flow rate in the chamber due to the timing of input (contact) line the bottom edge of the blade into the water.

Thus, the advantages of the claimed invention is a device for heat-moisture treatment of air are as follows:

1. Reducing energy costs for spraying liquid into the air stream due to the exclusion of the drive mechanism to rotate the shaft of the turbine.

2. Reducing weight and material consumption of the device.

3. Reducing the cost of the device.

Sources of information

1. Vonsovskii, Oyakodon, Lvitra air Conditioning and refrigeration. - M.: stroiizdat, 1985. - 368 S.

2. The equipment for cleaning gases: a Handbook /edited Ihekwaba. - Kyiv: Tekhnika, 1989. - 304 S.

1. Device for heat-moisture treatment of air containing placed in the air duct with fan irrigation camera with pan in the water, characterized in that the irrigation camera is positioned perpendicular to the flow on a horizontal shaft without driving mechanism crosswise turbine with blades of hygroscopic material in contact with the mirror of the liquid in the pan, with the cruciform blades of the turbine are segments of the hygroscopic material parallel to the flow of air at a distance of 10...20 cm from each other, and a horizontal shaft turbine has a brake device for regulating the speed of time.

2. The device according to claim 1, characterized in that the turbine blades are deployed along a helical line and their contact with the liquid mirror corresponds to this line.



 

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