SU1083033A1 - Air hole device - Google Patents

Abstract

1. SUPPLY AND EXTRACT DEVICE, comprising a housing divided by a partition into supply and exhaust air chambers having air inlet: self-intake nozzles, in the latter of which a filter is installed, characterized in that in order to maintain a comfortable supply air temperature, it additionally contains auxiliary exhaust chamber located at the outer. f I} aliamy loaffyn 1 of the eoifi / jrgj j flow wall of the supply air chamber, a recuperative heat exchanger placed in the supply air chamber, and a partition with a hole and a rotary plate valve, with one cavity of the recuperative heat exchanger placed in the supply air stream, and another - in the flow of the exhaust and connects the cavities of the air inlet duct - with an auxiliary chamber, the partition is installed in the main chamber of the exhaust air and forms a compartment with the filter and heat exchanger, and the plate valve is In this compartment, with the possibility of alternately blocking the opening and the inlet of the regenerative heat exchanger. 2. The device according to claim 1, characterized in that the U-shaped frame is made in the chamber of the supply air for accommodating a heat exchanger in it, and the air inlet nozzle is made folding. 3. The device according to claim 1, characterized in that it is provided with a drainage canopy located in the compartment above the filter in the area of the heat exchanger .., X 8 sk oo oo oo

Description

The invention relates to a technique of ventilation and air conditioning.

A supply and exhaust device is known, comprising a housing divided by a partition into supply and exhaust air chambers with air distribution and air intake connections, in the latter of which filter 1 is installed.

The disadvantage of the device is the difficulty in maintaining a comfortable supply air temperature. This is due to the fact that the temperature potential of the exhaust air is not used to heat the supply air directly in the device.

The purpose of the invention is to maintain a comfortable supply air temperature.

The objective 1a is set up by the fact that the intake-exhaust device comprising a housing divided by a partition into supply and exhaust air chambers with air-distributing and intake pipes, in the latter of which a filter is installed, additionally contains an auxiliary exhaust chamber located at the outer wall fresh air chambers, a recuperative heat exchanger located in the fresh air chamber, and a partition with an opening and a rotary plate valve, and one recuperative cavity The heat exchanger is placed in the supply air stream, and the other is in the exhaust stream and connects the air intake cavity with the auxiliary chamber, the partition is installed in the main chamber of the exhaust air and forms a compartment with the filter and heat exchanger, and the hearth valve is located in this compartment with the possibility of alternately blocking the aperture and the inlet of the recuperative heat exchanger.

In the supply air chamber, there is a U-shaped frame for accommodating a heat exchanger in it, and the air-distributing pipe is folding.

In addition, the device is equipped with a drainage canopy located in the compartment above the filter in the area of the heat exchanger.

FIG. 1 shows a device in cross section; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 shows the node I in FIG. one; in fig. 4 is a section BB in FIG. 3

The supply and exhaust device comprises a housing 1 divided by a partition 2 into chambers 3 and 4 of supply and exhaust air having air distribution and air intake pipes 5 and 6, in the latter of which filter 7 is installed. In addition, the device additionally contains an auxiliary exhaust chamber 8, located at the outer wall & supply chamber 3, a regenerative heat exchanger 10 placed in the supply chamber 3, and a partition 11 with an opening 12 and a rotary plate valve 13, with one cavity of the regenerative heat exchanger 10 placed in the flow of fresh air, and the other in the exhaust flow and connecting the air intake cavities 5 pipe 6 with an auxiliary chamber 8, a partition 11 is installed in the main chamber 4 of exhaust air and forms a compartment 14 with a filter 7 and a heat exchanger 10, and a plate valve 13 is placed in this

Q compartment 14 with the possibility of alternately blocking the opening 12 and the inlet-pipe 15 of the regenerative heat exchanger 10. In the supply air chamber 3, the U-shaped frame 16 is made for accommodating the heat exchanger 10 in it, and the air distributor 5 is made folding.

In addition, the device is provided with a drain cap 17 ,. placed in the compartment 14 above the filter 7 in the zone of the heat exchanger 10. The visor is made of elastic material.

0 For condensate collection provided

pallet 18. Valve 13 is controlled by a lever 19..7 kg

The device works as follows.

5 During the cold period of the year (at an ambient air temperature & -5 ° C), all the air drawn in from the room through the air intake pipe 6 and the filter 7 is passed through the regenerative heat exchanger 10. The exhaust air enters the 0 compartment 14 and through the heat exchanger 10 into the auxiliary exhaust chamber 8, and is led away by an exhaust ventilation system (not shown).

The intake air from chamber 3 enters the recuperative heat exchanger 10, it is heated in it by means of the heat of the exhaust air, and through the air distributing duct 5 is supplied to the respiratory zone of people. At the same time, the valve 13 blocks the opening 12. When the outside air temperature rises, to prevent overheating of the incoming air, it is necessary to reduce the amount of exhaust air passing through the recuperative heat exchanger 10.

For this, part of the exhaust air 5 is passed after the filter 7 through the opening 12 into the exhaust air chamber 4, from where it enters the exhaust system.

To provide this mode of operation of the device in the compartment 14, the plate valve 13 is set with the lever 19 to a position such that the required ratio of the volumes of exhaust air passing through the recuperative heat exchanger 10 and the additional 8 and main 4 exhaust air chambers is ensured.

- When the outside air temperature is close to or greater than the required supply air temperature, the valve 13 blocks the inlet pipe 15 of the heat exchanger 10 and directs the entire stream of exhaust air into the chamber 4 and further to the exhaust system.

In the cold period of the year, a 60 mot / oh of the required volume of outside air flows from the air preparation unit into the intake system without treatment, and 30-40% is heated. A mixture of these volumes of air should ensure that during the entire cold period of the year the temperature of the air supplied to the device is approximately –5 ° C.

At the same time, the temperature of the supply air after the recuperative heat exchanger 10, i.e., at the outlet of the device, will be 14–16 ° C at exhaust air temperatures of 30–40 ° C.

At ambient temperatures above -5 ° C, heating in the installation is stopped.

Taking into account the possible high compactness of the heat exchanging surface of the recuperative heat exchanger 10 and the possibility of sedimentation on it of dust contained in the supply air and fatty impurities containing 5 in the exhaust air, the air distributing pipe 5 is folded and the heat exchanger 10 is inserted into the U-shaped frame 16 with the ability to quickly removing it from the device for cleaning and rinsing.

The proposed device saves up to 40% of the heat spent on heating the supply air due to the heat of the exhaust air.

In this device design, individual regulation of the supply air temperature in the local area of the working area of the room is provided, which prevents the working area from overheating and leads to savings in heat consumption.

OUIG.2

Claims (3)

1. SUPPLY AND EXHAUST DEVICE, comprising a housing divided by a partition into the supply and exhaust air chambers, having air inlets, the last of which has a filter, characterized in that, in order to maintain a comfortable supply air temperature, it additionally contains an auxiliary exhaust chamber, located at the outer wall of the supply air chamber, a recuperative heat exchanger located in the supply air chamber, and a partition with an opening and a rotary plate valve, with It has one cavity in the recuperative heat exchanger located in the supply air stream, and the other in the exhaust air stream. It connects the cavities of the air intake pipe to the auxiliary chamber, the partition is installed in the main exhaust air chamber and forms a compartment with the filter and heat exchanger, and the plate valve is placed in this compartment with the possibility of alternately overlapping the opening and inlet of the regenerative heat exchanger. 2. The device according to π. 1, characterized in that in the supply air chamber a U-shaped frame is made for placement of a heat exchanger in it, and the air-creating pipe is hinged. 3. The device according to π. 1, characterized in that it is equipped with a drain visor located in the compartment above the filter in the area of the heat exchanger. Removable air <=> Supply air Fiz. 1