FI83263C - FOERFARANDE FOER ATT KANALISERA AVLUFT I RUM. - Google Patents

Description

83263

METHOD FOR DUCTING EXHAUST AIR IN ROOMS

This invention relates to a method for ducting exhaust air along the suction piping of a central vacuum cleaner.

5 The currently commonly used solutions for ventilation and related functions, as well as vacuuming, are based on separately installed and used solutions, in which separate units are installed for each function.

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Ventilation is generally provided by a state-of-the-art vacuum cleaner, whereby air is sucked out of the room by means of a vacuum cleaner, which is led out and replacement air flows from the cracks of structures such as windows into the room. When enhanced ventilation 15 is desired, the window is opened and the outside air is allowed to flow in place of the exhaust air, so that due to the reduced flow resistances: · *: the amount of air to be exchanged increases.

....: If it is desired to utilize the heat content of the exhaust air to heat the fresh air, a heat exchanger located in connection with the inlet and outlet ducts is used to recover the heat of the exhaust air.

Filters, which may be of the mechanical, electrical or chemical type, are used to purify the exhaust air. These filters are also generally installed as separate components in connection with an air conditioning system.

Vacuuming is generally arranged with portable, rotating *! *. With mobile vacuum cleaners, from which exhaust air · .: is returned to the room. Another less used solution is to place the vacuum unit, e.g. in a closet or garage, and in the room itself, for example, suction pipes are placed in the wall structures, to which the suction hose is connected.

The disadvantage of the current solutions is that energy is wasted when removing air with a top extractor, as the replacement air to be replaced is at outdoor temperature.

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In the event that replacement air enters the room from the cracks in windows and other structures, dust and other airborne contaminants such as traffic contaminants, lead and soot, and heavy metals enter the interior. When using filtered 5 replacement air, the filters have to be installed in connection with the air inlet-piping as separate units and this structure increases the cost. The uneven distribution of heat causes discomfort due to the feeling of traction. With regard to vacuuming, a separate central vacuum system 10 takes up space, and the use of a separate wheeled vacuum cleaner has the disadvantage of returning air to the room, not all dust particles remaining in the vacuum cleaner filter but the smallest particles most harmful to the human respiratory tract. Finally, when using separate machine units, they all require their own enclosure to prevent noise nuisance.

The system according to the invention provides a decisive improvement in the above-mentioned drawbacks. To achieve this, the invention is characterized by what is set forth in the characterizing part of claim 1.

The main advantage of the invention is that the suction pipes of the central vacuum cleaner can be used as deaeration ducts and the suction points of the central vacuum cleaner can be used as deaeration valves.

In the following, the invention will be explained in detail with reference to the accompanying drawing.

Figure 1 shows an air conditioning, air purification, heat recovery and vacuum cleaning system.

Figure 1, which comprises all the components contained in the central unit, shows diagrammatically the operation of the air conditioning, air purification, heat recovery and vacuum cleaning unit. The fresh air (1) to be taken out is led to a heat equalizer (3), where it is mixed with circulating air (2) controlled by a control thermostat (5) so that the temperature of the fresh air entering the heat exchanger (13) never falls below 0 ° C. The fresh air mixed with the recirculated air (2) is passed through a filter (12) through a plate heat exchanger, where the exhaust air (10) purified by the filter (11) is used to raise the fresh air temperature. The exhaust air (10) is sucked from the toilet, sauna and washing rooms by a vacuum cleaner (18) and led from the heat exchanger (13) via a duct (24) to the outside air (9). From the heat exchanger (13) the mixture of fresh air and recirculated air is led to the water coil module (22), where the mixture of fresh air and recirculated air and the rest of the recirculated air are mixed and can be heated if desired. and by means of a fan (17) the blowing of air (8) into the air spaces is led. The air (14) sucked by the vacuum cleaner (15) by the vacuum cleaner (19) is led out (9) down the exhaust duct.

Furthermore, Fig. 1 shows how the suction piping (16) of the central vacuum cleaner (15) installed in the room can also be used as the air conditioning exhaust air piping, and the suction point (23) of the central vacuum (15) can then be used as a ventilation suction point.

____ Figure 2 shows a pipe and duct connection piece (25) which can be pre-installed during construction on the upper or intermediate floor and below which a central unit can be subsequently installed, whereby duct and pipe connections between them can be easily made using duct and pipe quick connection methods.

In particular, it should be noted that the invention has been described above with reference to only one preferred embodiment thereof.

However, this is in no way intended to limit the invention to this example only, but many modifications are possible within the scope of the inventive idea defined by the following claim.

Claims (2)

4 83263 PATENT CLAIM