RU2439440C2 - Plenum ventilation device - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: in plenum ventilation device the heating of the supplied air is performed owing to air flow supplied to finned nozzle from material with high heat conductivity, which is fixed on heating radiator above which a screen from heat-insulating plate material is installed with the slots made in it, and finned nozzle elements pass through them. Air flow contacts the earthed electrically conducting surface of air duct and saturates the air with negative ions. The device is also equipped with a tray from stainless material and a condensate discharge pipe.

EFFECT: maintaining serviceability of the device at ambient air temperatures below zero; improving plenum air quality.

Description

The invention relates to the field of ventilation, in particular to supply devices for natural ventilation.

Supply air ventilation valves are known and widely used, for example, the Air-box, Unit-air, and other models (see Internet addresses: http://www.air-box.ru, http: //www.unit-air. ru). These valves allow the so-called micro-ventilation. However, they have a complex configuration and low noise absorption and do not provide filtering. In addition, at a negative outside temperature, cold air enters through the valve.

Also known is a ventilation device (RF patent 2364800, bull. No. 23, published. 08.20.2009). The device contains an intake pipe installed in the hole in the wall and closed from the outer end of the intake grille. The device is equipped with an air duct connected to the intake pipe, installed along the inner side of the building wall and located in the immediate vicinity of the heater. The incoming air is heated by supplying an air flow to the heating radiator. The disadvantage of this design is the danger of freezing of the heater at low outdoor temperatures and the low quality of the supply air.

The invention is aimed at maintaining the operability of the device at negative outside temperatures, as well as improving the quality of the supply air.

The result is achieved in that in the supply ventilation device including an air intake pipe with a filter, a muffler and a damper with air heating by a heating radiator, according to the invention, the radiator is equipped with a finned nozzle made of a material with high thermal conductivity, the nozzle ribs are located in the grooves of the heat insulation screen installed above the heating radiator , the air inlet is equipped with a stainless steel tray with a condensate drain pipe.

The result is also achieved by the fact that to improve the microclimate in the room, the air intake pipe is grounded.

Figure 1, 2 shows the proposed device. Figure 1 shows a top view, figure 2 is a view from the side of the room.

The supply ventilation device includes a pipe 1 installed in the wall 2, in which there is an intake grill 3 on the outside. In the pipe 1, a filter 4, a silencer 5 are arranged in series. The pipe 1 is made with the possibility of its grounding 7. To regulate the amount of supply air at the outlet of the pipe 1, a shutter is installed 8. The heating radiator 9 is equipped with a finned nozzle 10. Above the radiator 9 a screen 11 is installed, through the grooves of which the ribbed elements of the nozzle 10 pass.

The device operates as follows.

External air through the intake grill 3 enters the intake pipe 1 installed in the wall 2, passes through the filter 4, where it is cleaned from dust and biological contaminants and enters the muffler 5. In the muffler 5, the air flow changes the direction of movement, which reduces noise. The resulting condensate flows onto a stainless steel tray and is removed through a condensate drain pipe 6.

When the air contacts the surface of the grounded 7 electrically conductive material of the duct, air is saturated with negative ions. An electrically conductive surface can be created by making an air intake pipe of metal or by applying an electrically conductive layer to the inner surface of a plastic air intake pipe. The amount of incoming air is regulated by a shutter 8.

Further, the supply air passing through the finned nozzle 10 from a material with high thermal conductivity, mounted on a heating radiator 9, is heated and enters the room. To protect the heating radiator 9 from freezing above it, a screen is made of sheet heat-insulating material 11 with grooves made in it to accommodate the ribbed elements of the nozzle 10.

Thus, the ventilation device provides an organized natural flow of outdoor air into the room, eliminates the danger of freezing of the heater, creates a normal microclimate in the room, reduces the penetration of dust and noise, eliminates the formation of condensation on the interior surfaces of the room. The air stream, in contact with the grounded electrically conductive surface of the duct, saturates the air with negative ions.

Claims (2)

1. Supply ventilation device, including an intake pipe with a filter, a muffler and a damper, with heating the air with a heating radiator, characterized in that the radiator is equipped with a finned nozzle made of a material with high thermal conductivity, the nozzle ribs are located in the grooves of the heat shield installed above the heating radiator, and are air intake the nozzle is equipped with a stainless steel tray with a condensate drain pipe. 2. The device according to claim 1, characterized in that to improve the microclimate in the room, the air intake pipe is grounded.

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