SU933903A1 - Arrangement for protecting outer walls of building from corrosion - Google Patents

Description

(54) DEVICE FOR PROTECTION AGAINST CORROSION OF EXTERNAL WALLS OF BUILDINGS

one

The invention relates to the building structures of buildings and can be used to protect exterior walls from corrosion in rooms with high moisture deposition.

A device for corrosion protection of external walls of buildings is known, which includes channels for supplying heated air with openings in the upper and lower parts 1 located in the external walls.

The disadvantage of this device is the inefficient heating of the air passing through the channels (only due to heat transfer through the walls from the side of the room),. however, the temperature of the inner surface of the wall is often kept below the dew point of the inside air and moisture condenses on its surface causing corrosion.

The closest in technical essence and the achieved effect to the proposed is a device for protection against corrosion of external walls of buildings, including channels located in external walls for supplying heated air and openings in them 2.

A disadvantage of this device is the preheating of the air passing through the channels by mixing with the air of the room drawn through the holes in the tees, as a result of which the air inside the channels is moistened, moisture condenses on the walls of the channels and penetrates into the wall; where it alternately freezes and thaws creates destruction.

) 0 The purpose of the invention is to increase the effectiveness of protection and reduce energy consumption. The goal is achieved by the fact that a device for protecting the exterior walls of buildings from corrosion, including channels located in 1 outer walls

5 is equipped with an air exhaust system from the room and a surface heat exchanger with an injection and exhaust fan, the pressure fan connected sequentially to the surface heat exchanger and channels for supplying heated air, and the exhaust fan is connected in series with the surface heat exchanger and a system for extracting air from a room.

The air exhaust system from the room is made in the form of exhaust channels located inside the room along the external walls in the areas between the channels for supplying heated air.

The air exhaust system from the room is made in the form of plafonds, and the channels for supplying heated air are made in the form of a common channel located along the entire length of the outer wall.

FIG. I shows a schematic diagram of a device for protecting the exterior walls of buildings from corrosion; in fig. 2 and 3 are various options for positioning the air exhaust system from the room and channels for supplying heated air.

A device for corrosion protection of exterior walls of buildings includes main ducts 1 and distributing ducts 2 for supplying heated air, located in walls 3, an air intake device 4 for outside air, air intakes 5-7 from a room, exhaust ventilation systems with exhaust air channels 8, a surface heat exchanger 9, an external air injection fan 10 connected in series with a surface heat exchanger and channels 2 for supplying heated air, an exhaust fan 11 connected through edovatelno with a surface heat exchanger and the air draw-rods system of ducts 12 and placing.

The device works as follows.

External air is fed through the air intake device 4 by the fan W to the surface heat exchanger 9, where it is heated by the heat of the exhaust air removed from the room, and from there through the main channels 1 enters the divorcing channels 2, thereby increasing the temperature of the walls 3 and preventing it from falling out condensation on the surface of the walls.

Exhaust air through the air intake devices 5 enters through channels into the surface heat exchanger 9, where it transfers excess heat, through the air ducts 12 by the fan 11 is blown out.

The air from the premises can be removed through the air intake devices 6 with exhaust channels 8 located along

external walls in the areas between the channels 2 for supplying sub-primary air or through the air intake devices 7 made in the form of plafonds. Channels 2 for supplying heated air can be made as a common channel located along the entire length of the outer wall.

The economic effect of using the proposed device to protect the exterior walls of buildings from corrosion is expressed in reducing the cost of repairs due to the increased durability of the walls.

Claims (3)

1. A device for corrosion protection of external walls of buildings, including channels for supplying heated air in external walls, characterized in that, in order to increase efficiency protection and reduction of energy consumption, the device is equipped with a system for extracting air from the room and a surface heat exchanger with heating and exhaust fans, the pressure fan connected in series with the surface heat exchanger and channels for supplying heated air, and the exhaust fan connected in series with. surface heat exchanger and air exhaust system from the room. 2. An apparatus according to claim 1, characterized in that the system for extracting air from the room is designed as exhaust channels located inside the room along the external walls in the areas between the channels for supplying heated air. 3. The device according to claim 1, characterized in that the system for extracting air from the room is made in the form of plafonds, and the channels for supplying heated air are made in the form of a common channel located along the entire length of the outer wall. Sources of information taken into account in the examination I. Review "The walls of industrial buildings with wet operating conditions, TsINIS, M., 1977. 2. Patent of France No. 2228914, cl. E 04 B 1/70, 1974. . fff // ff fug. f