SU1203225A1 - Inflatable building - Google Patents

Description

The invention relates to construction, in particular, to mobile pneumatic shelters that need to reduce radiation overheating in hot weather.

The purpose of the invention is to increase the efficiency and effectiveness of air cooling in the structure.

The drawing shows a pneumatic structure with an air-injection system, a part.

In the suction pipe 1 of the fan 2, the nozzle 3 is fixed, water is supplied from the pump or from the water supply system to the nozzle 3 through the tube 4. To the diffuser 5 of the fan 2, an air duct 6 is tilted in the direction of the fan. The upper horse of the duct 6 is attached to the shell 7 of the pneumatic structure. In the duct 6 closer to the shell 7 installed grid 8 of absorbent material. A fabric pocket 9 is attached to the inner side of the shell 7 (at the point of attachment of the air duct 6), which serves as a drip tray. A drainage pipe is laid along the air duct 6. The chuck tube 10 connects the lower zone of the pocket 9 to the suction pipe 1 of the fan 2 or to the collection tank (not shown). On the outer side of the shell 7, an inclined drainage fabric pocket 11 is strengthened. The water flowing down the rain cover 7 or sprayed to cool the structure along the drainage tube 12 is directed into the water collecting basin.

The proposed design of a pneumatic structure allows, with a small flow of water, to significantly lower the temperature of the internal air, increase the humidity of the air to optimum values and clean the forced air from dust.

Radiation overheating of pneumatic devices is accompanied by a decrease in humidity under the shells. On summer days, relative humidity drops to 20–25%. Such dryness

air has a negative effect on people's well-being, so that air humidification is also required by sanitary standards.

Depending on the temperature and humidity of the ambient air and the temperature of the supplied water, the heat exchange in the air-injection system can be regulated,

by changing the flow rate of water, air, and the degree of dispersal of water in the nozzles. The process of heat transfer is polytropic in nature. Experiments have shown that with

outside temperature and water temperature 2b-30 ° C air enters the structure with a temperature of 18-, 20 ° C and a relative humidity of 70-80%. With a water flow of 40 kg / h

and six times air exchange in a pneumatic structure with a volume of 1360 m, overheating is reduced by 6 °, and the relative humidity of the air in the working area under the shell does not exceed 60%.

The same decrease in the internal air temperature by irrigating the casing 7 outside requires a water flow of 1.5 t / h.

The proposed design solution, providing high heat transfer efficiency, has low water consumption, creates a slight aerodynamic resistance

operating fan, so that the electricity consumption on the fan drive is almost not increased.

An increase in the heat exchange efficiency of approximately two times compared with the known one allows it to be used to reduce the air temperature in the building

fewer air- and water-injection devices, and halving the energy consumption by dp to achieve the same effect. In addition, the design of the duct is reduced, and the presence of

the pocket on the casing for collecting water allows you to create its reserves.

Claims (1)

AIR CONSTRUCTION STRUCTURE, including a casing with air ducts _f fans, a pump, a water supply device providing humidification of the injected air, and drainage systems, characterized in that, in order to increase the cost-effectiveness and efficiency of cooling the air in the building, the water supply device is installed in the suction nozzles of the fans, the ducts are inclined to the fans and are equipped with hygroscopic grids, and the structure is made with a spray catcher in the form of a fabric pocket mounted on the inside of the shell glasses opposite the duct, and the irrigation coefficient of the injected air by the water supply device does not exceed 0.01.