Currently, residential buildings are primarily channel ventilation. Inflow of air from the street and outflow of exhaust air passes through special channels and openings. The air in these ventilation systems moves due to the difference in air pressure from the outside and inside. Resistance, which promotes air through the channels, due to the amount of pressure, so insignificant that the inhabitants additionally install a fan, to accelerate the flow of air. So why does such a ventilation scheme not work well enough? Let's figure it out.
Conventional ducted exhaust ventilation is constructed according to the principle of vertical channels that run inside walls, or channels with windows. The windows, in turn, are covered with metal grilles, assembled from air outlets that are located horizontally, and a vertically placed shaft. In the apartment, to strengthen the air suction capacity in the mine, a deflector is installed. The exhaust air comes from the apartment through the vent to the channel and rises, and is vented out of the shaft through the air outlets.
In the event that the air flow has ceased and the ventilation is not working, there is a reverse thrust, it is necessary to improve the situation and eliminate possible causes. Something breaks the operation of the ventilation system. First of all, you need to make sure of the cleanliness of the system, check if any foreign objects have entered the ventilation duct - eliminate them, if any. If the elimination does not work, the problem remains, it is worth finding a solution. And it's very simple to solve the problem.
The movement of air in the ventilation system is due to the presence of one important detail. In the apartment, when entering the canal, there must be a stub. The essence of her work is to give the direction of air only upwards. If such a stub is not worth, then the air will move along the vent channel downwards, and the ventilation system will not work in the proper mode, and no service will help. The only solution in the case where the ventilation duct is open, there will be a decision to close it down at the bottom.
From this problem I suffer all apartment houses, regardless of the year of construction, whether a brick house or a panel house. The question is that the design of the ventilation system and the specificity of the concrete ventilation units, from which it is built up, are disrupted. In the usual scheme of all apartments that are connected to a common ventilation duct, enter the riser through the floor in the ventilation hole, alternating - the left channel, the right channel.
At the manufacturer, make a hole for connecting horizontal channels with a distance of 2.5 meters. Then the ventilation system will work fine, providing airflow from the apartment to the vent and up the canal. Air, getting into the channel, will collide with the plug, coming through the hole in the collection valve, and out. Thus, the absence of plugs is a major shortcoming in the operation of ventilation ducts.
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