RU2761505C2 - Exhaust shaft - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: invention relates to the field of ventilation; it can be used to remove polluted air from livestock or industrial premises. An exhaust shaft includes an air duct of rectangular cross-section made of heat-insulating walls and a panel with an air layer transparent to solar radiation located on the south side, a screen made of heat-conducting material installed in the middle of the shaft parallel to the transparent panel, the surface of which, facing the panel, is covered with a light-absorbing layer, and a rotary valve. The screen and the rotary valve are made of heat-conducting material and are overlapped with the possibility of opening the rotary valve to close contact with the screen, while the rotary valve is connected to the screen with a part of the rotary valve protruding beyond the lower edge of the shaft with the possibility of heating by incandescent lamps placed near it to illuminate the premise at night and transfer heat to the screen.

EFFECT: invention makes it possible to increase air capacity in the dark.

1 cl, 1 dwg

Description

The invention relates to the field of ventilation and can be used to remove polluted air from a livestock or production facility.

Known ventilation shaft, including an exhaust shaft, a heating element attached to its head, made in the form of a pipe covering the head with a transverse dividing wall placed in it, forming two sections in the pipe, and connected to them cold and hot water pipes of the water heating system located along both sides of the partition [1].

The reasons that impede the achievement of the technical result indicated below when using the known ventilation shaft include the fact that the range of its application is limited to rooms equipped with hot water supply.

There is also known an exhaust shaft containing an air duct of rectangular cross-section made of heat-insulating walls and a panel with an air gap that is transparent for solar radiation located on the south side, a screen of heat-conducting material installed in the middle of the shaft parallel to the transparent panel, the surface of which, facing the panel, is covered light-absorbing layer [2], taken as a prototype.

The reasons that impede the achievement of the technical result indicated below when using this mine, taken as a prototype, is the low efficiency of work in the dark.

The essence of the invention lies in the use of the heat of incandescent lamps used when lighting agricultural and industrial premises, to increase the air capacity of the mine in the dark.

In particular, the placement of incandescent lamps near the exhaust shafts, which turn on at night, when there is no solar radiation and the unlit screen cools down quickly, and the air capacity of the mine drops sharply, the cluster (group) arrangement of incandescent lamps (at least 2-4 in a bush) is about the bottom of the shaft and their heating of the rotary valve made of heat-conducting material, allows, when it is fully opened, to close with a specially elongated screen for this, transfer the heat received from the lamps to it, compensate for the missing heat of solar radiation received by the screen during the day, and increase the air capacity of the exhaust shaft in the dark.

The technical result is an increase in the air capacity of the exhaust shaft at night.

The specified technical result in the implementation of the invention is achieved in that in the known exhaust shaft, including a rectangular air duct made of heat-insulating walls and located on the south side of a panel transparent to solar radiation with an air gap, a screen of heat-conducting material installed in the middle of the shaft parallel to the transparent panel , the surface of which, facing the panel, is covered with a light-absorbing layer, the rotary valve, the screen and the rotary valve are made of heat-conducting material and are overlapped with the possibility of opening the rotary valve until intimate contact with the screen, while the rotary valve is connected to the screen protruding beyond the lower the edges of the shaft of a part of the rotary valve with the possibility of heating by incandescent lamps placed near it to illuminate the room at night and transfer heat to the screen.

An increase in the air productivity of the exhaust shaft in the absence of solar radiation is provided due to the fact that the air removed from the room, washing the valve and screen connected to each other heated by incandescent lamps, increases its temperature, as a result of which the temperature difference between the removed and outside air increases.

The proposed device is illustrated by a drawing.

The drawing shows a cross-section of the exhaust shaft.

The exhaust shaft contains an air duct of rectangular cross-section made of heat-insulating walls 1 and a panel 2 with an air gap that is transparent for solar radiation located on the south side, installed in the middle of the shaft parallel to the transparent panel 2, a screen 3 of heat-conducting material, suspended on brackets 4, the surface of which facing the panel 2 is covered with a light-absorbing layer, the umbrella 5, the rotary valve 6, which in the open state engages with the screen 3, the incandescent lamps 8 and the reflective lampshade 7.

Information confirming the possibility of carrying out the invention with obtaining the above technical result.

The exhaust shaft works as follows.

In the cold season, the air capacity of the mine is ensured by natural air draft.

During the transitional and warm periods of the year, when the temperature difference between the indoor and outdoor air is small, in clear weather during the daytime, solar radiation passing through the transparent panel 2 falls on the light-absorbing surface of the screen 3, heating the latter above the temperature of the exhaust air, which increases the air capacity of mine 1 ...

After sunset, the screen, which is not illuminated by it, quickly cools down and the air capacity of the mine turns out to be insufficient. At this time, the rotary valve 6, made of a heat-conducting material, is brought into tight engagement (in the paw) with the heat-conducting screen 3, extending the latter to the height of the valve 6 and a group of incandescent lamps 8 for internal lighting of the room, specially placed in a bush method under a lampshade, is included in the electrical network. 7, near the valve 6 protruding beyond the lower edge of the shaft 1.

Incandescent lamps 8 heat the lower end of the heat-conducting shield 3 elongated due to the valve 6, the heat from which spreads to its entire volume. Since the shield 3 and the rotary valve 6 connected to the leg are made of a heat-conducting material, they both have practically the same temperature, as a result of which the removed air washes over a large heat exchange surface and heats up to a higher temperature, which increases the air capacity of the mine.

Umbrella 5 prevents atmospheric precipitation from entering the room. Using the rotary valve 6, the air capacity of the mine is regulated and the screen 3 is lengthened due to contact with the valve 6, and the brackets 4 firmly hold the screen 3 strictly in the middle of the mine 1.

The equipment of the exhaust shaft with bush lamps made of incandescent lamps, placed near its mouth, play both the role of the lamps itself and the role of a heater for an elongated screen that can increase the air capacity of the mine in the absence of solar radiation at any time of the year.

Thus, the stated information testifies to the fulfillment of the following set of conditions when using the claimed invention (device):

- means embodying the claimed device, in its implementation, is intended for use in industry and agriculture, namely for creating a microclimate in rooms, in particular, for cleaning internal air from moisture and harmful impurities;

- for the claimed device in the form as it is characterized in the independent claim of the stated claims, the possibility of its implementation is confirmed using the means and methods described in the application or known before the priority date.

Therefore, the claimed invention meets the condition of "industrial applicability".

Sources of information

1. Inventor's certificate SU No. 1788394 A2, 1990.

2. Inventor's certificate SU No. 1762081 A1, 1992, prototype.

Claims (1)

Exhaust shaft, including a rectangular air duct made of heat-insulating walls and a panel with an air gap that is transparent for solar radiation on the south side, a heat-conducting material screen installed in the middle of the shaft parallel to the transparent panel, the surface of which, facing the panel, is covered with a light-absorbing layer , a rotary valve, characterized in that the screen and the rotary valve are made of a heat-conducting material and are overlapped with the possibility of opening the rotary valve until intimate contact with the screen, while the rotary valve is connected to the screen with the part of the rotary valve protruding beyond the lower edge of the shaft with the possibility of heating placed near it incandescent lamps to illuminate the room at night and transfer heat to the screen.

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