RU2581816C1 - Inlet ventilation device - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to ventilation systems, and more particularly to devices of natural ventilation of premises. Technical result is achieved in that the air inlet consisting of the air intake pipe installed in a hole of the partition structure and closing the outer end of the intake grille further comprises a mosquito net arranged with the outer end of the air intake pipe and a multilayered heat exchanger, which is composed of profiled metal pipes arranged in each other at a certain distance between them, held in position by the dividing inserts, the transverse dimension of each profiled pipe is sequentially increased until the internal dimension of the air intake pipe, and each profiled pipe is inseparably connected with its diffuser cup.

EFFECT: technical result of the claimed invention is to provide energy-efficient natural ventilation device that provides heated air coming from the street due to the internal heat transfer devices.

2 cl, 1 dwg

Description

The invention relates to ventilation systems, in particular to devices for natural ventilation of premises.

In modern buildings in which window panes are installed, there is a shortage of fresh air. To eliminate this deficiency, frequent ventilation of the room through the windows, transoms or window sashes is necessary, which is not always possible or desirable, because when airing drafts are formed. An alternative is to use additional ventilation devices.

The state of the art known air inlet ventilation valves, for example, models Air-box, Unit-air (http://www.air-box.ru., Http://www.unit-air.ru, respectively). 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 low subzero temperatures outside, cold air enters through the valves, respectively, which cools the structures adjacent to the valve opening, on which moisture condenses up to drizzle.

Also known are stand-alone (not built-in frames) ventilation valves mounted in the wall of a building. For example, the valve according to the patent of the Russian Federation No. 66488, F24F 13/08, publ. 09/10/2007 is a pipe mounted in a through hole in the wall of a building. At the ends, the pipe is closed by grilles, and in the internal channel there is a silencer. The device has a simple design, however, it does not provide filters and other devices that improve the quality of ventilation; the valve device does not provide proper heating of the air entering the room at sub-zero ambient temperatures.

Known valve infiltration of air KIV-125 (http://www.topclimat.ru/brands/kiv/tech6285.htm), which includes a pipe segment that is installed directly in the through hole in the building, which houses a layer of thermal insulation. Outside, the valve is closed by an intake grille with a mesh; on the other end facing the room, a filter and a flow regulator handle are installed in the valve. The disadvantage of the valve is that its device does not provide natural heating of the outside air entering the room, therefore, at low street temperatures, the consumer, using the handle of the flow regulator, unnecessarily clamps the intake of fresh air into the room, which violates the air-humidity mode in the room.

The device UVRK-50 NPO ECOTERM is known (http://www.homevent.ru/p002.htm), the operation of which consists in passing through the device four phases that are periodically repeated. Disadvantages: the presence of a noise-forming reversible fan that consumes electricity, which reduces energy saving, the regenerator accumulates humidity at large temperature differences between the external and internal air, requiring additional measures to protect the device from colonies of microorganisms.

The closest technical solution (prototype) is the supply ventilation device (RF Patent No. 2364800, F24F 7/00, publ. 08/20/2009), consisting of an air intake pipe installed in the opening of the enclosing structure and closed from the outer end of the intake grille. Disadvantages: design complexity, the need for a heating device, for example in the form of a central heating radiator, for heating outside (cold) air coming from the street.

The objective of the invention is the creation in a room with exhaust ventilation of a natural, without drafts, temperature and air-humidity mode of stable comfort without the use of additional efforts for heating and energy costs to regulate these modes.

The technical result of the claimed invention is the creation of an energy-saving silent device for natural ventilation, which provides heating of the outside air entering the room through heat exchange, which occurs in the device without the use of additional heating devices and energy costs.

The technical result is achieved by the fact that the supply ventilation device, consisting of an air intake pipe installed in the opening of the enclosing structure and closed from the external end of the intake grill, contains a mosquito net located on the external end of the air intake pipe, and a heat exchanger consisting of profiled metal pipes placed each other in each other at some distance between each other, held in a predetermined position using dividing inserts, where the transverse dimension of each milling pipe increases successively up to an internal dimension of the air intake pipe, and each profiled pipe is inseparably connected with its diffuser cup. Moreover, the device may further comprise an air fine filter installed in front of the heat exchanger through the inlet stream of external air.

New significant distinguishing features of the proposed technical solution are the following features:

- the mosquito net is located on the outer end of the air intake pipe;

- a multilayer heat exchanger consists of profiled metal pipes placed in each other at some distance between each other and held in a predetermined position by means of dividing inserts;

- the transverse dimension of each shaped pipe is successively increased to the internal size of the air intake pipe;

- each profiled pipe is inextricably connected to its diffuser cup.

The combination of new significant features with known features allows to obtain a technical result, which consists in creating an energy-saving silent device for natural ventilation, which provides heating of the air entering the room from the street due to internal heat exchange without the use of additional heating devices and energy resources.

The essence of the invention, its feasibility and the possibility of industrial application are illustrated in the drawing, where there are the following positions:

1 - air intake pipe;

2 - enclosing structure;

3 - intake grille;

4 - mosquito net;

5 - multilayer heat exchanger;

6 - profiled pipe;

7 - dividing inserts;

8 - diffuser cup;

9 - fine air filter.

The ventilation device contains an intake pipe 1 in the form of a pipe segment made of a material with low thermal conductivity (for example, with a thermal conductivity coefficient λ <1.00 W / (m · K), which is installed in a through hole, for example, with a diameter of 100 mm, of the enclosing structure 2 (for example, the walls of the building.) From the side of the outer surface of the enclosing structure 2, the end of the air intake pipe 1 is closed by a fence grid 3 and a stretched mosquito net 4, which protects the device from rain, birds, insects, stitches, fluff, etc. From the side of the inner surface of the enclosing structure 2 (i.e., from the side of the room), a multilayer heat exchanger 5, assembled from profiled metal pipes 6, placed in each other at some distance between each other, is inserted into the air intake pipe 1 ( for example, at a distance of less than 5 mm) and held (connected) in a predetermined position by means of dividing inserts 7. The transverse dimension of each shaped pipe 6 sequentially increases to the internal size of the air intake pipe 1 with tinuously compound each profiled tube 6 with its diffuser cup 8. All parts of the heat exchanger 5 made of a metal having a coefficient of thermal conductivity λ> 200,00 W / (m · K), such as aluminum. The air intake pipe 1 can be made, for example, of any steel. The ventilation device may additionally have an air filter 9 of fine cleaning, which is installed in the air intake pipe 1 between the mosquito net 4 and the multilayer heat exchanger 5. An example of a specific implementation of the filter 9 of fine cleaning is non-woven cotton wool. The surfaces of the diffuser cups 8 of the multilayer heat exchanger 5 are located at a distance of about 5 mm from each other and are located in the room.

The ventilation device operates as follows. With the existing air exhaust from the ventilated room, the air from the street (in Fig. 1 is the outside air), passing through the intake grill 3 and the mosquito net 4, enters the channel of the air intake pipe 1 and, if there is a fine filter 9, passing through it, is cleaned , then enters the multilayer heat exchanger 5, leaves from which into the room through the passages (distances) between the diffuser cups 8 in diffuse form in several streams. Entering the multilayer heat exchanger 5, the outside air contacts the metal surfaces of the bodies of the profiled pipes 6, which are heated from the diffuser cups connected to them, which, in turn, are heated by the heat of the room air. If there is a fine filter in the device 9, its replacement is carried out when the multilayer heat exchanger is removed 5. The outside air is cleaned due to the presence of a mosquito net 4, finer cleaning of the outside air is if the device has a fine filter 9 (dust collector).

When the ventilation device is used:

- the properties of gases tend to stop in the interval between two planes of less than 5 mm. The specified property creates a braking resistance to the flow of air passing through the multilayer heat exchanger; while the strength of the resistance and the supply ventilation depend on the length of the multilayer heat exchanger;

- the properties of gases to slow down or accelerate the movement of molecules depending on temperature, which ensures self-regulation of the amount of air passing through the multilayer heat exchanger, i.e. the colder the air, the slower it passes through the device;

- high thermal conductivity of the materials from which the profiled pipes and diffuser cups are made, allows you to heat the elements of a multilayer heat exchanger and transfer the accumulated heat to the incoming outside air.

In contrast to the prototype, the proposed device is characterized by ease of operation and during its operation does not require adjustment of the air passing through the device.

Unlike the prototype, the proposed device is equipped with a mosquito net, which allows for comfort in the room.

In contrast to the prototype, where a complex design is used, requiring a heating device, for example, a central heating radiator to heat the outside (cold) air coming from the street, as well as an additional channel for heating the incoming air from the radiator, in the proposed technical solution the design of a multilayer heat exchanger and its the heat-conducting material from which it is made allows heating of the outside air entering the room due to convective heat transfer between street air flow and warm air flow of the room.

Unlike the prototype, the presence in the multilayer heat exchanger of diffuser cups located between themselves at a distance of, for example, less than 5 mm, ensures the dispersion of heated air into the air flows inside the room according to the number of guide elements of the device.

Unlike the prototype, where for entering warm air into the room it is necessary to place the device near the battery or behind it, the proposed technical solution should be installed in the upper part of the wall near the window, which will provide better substitutional mixing of the air masses in the room.

Thus, the proposed device of natural, channelless, supply, self-regulating supply of fresh air into the room allows to provide a normative air flow with a closed window, while preserving all the advantages of sealed windows of a new generation.

The proposed ventilation device provides a normalized air flow at any temperature outside the window (without drafts) and stable comfort indoors, characterized by the simplicity of the constructive solution. The device can be used in any room in combination with natural and forced exhaust ventilation and standard heating appliances. The invention allows opening windows in a room only for washing them.

The proposed technical solution does not explicitly follow from the prior art. In addition, in the patent search process, no technical solutions have been identified that have features that match the distinguishing features of the claimed invention, therefore, it satisfies the patentability condition of “inventive" level. In the prior art, no analogue was found, characterized by features identical to all the essential features of the claimed invention The authors tested the ventilation device experimentally, which confirmed its purpose, feasibility, feasibility and workability to achieve the claimed technical result, in this regard, the invention meets the condition of patentability "industrial applicability".

Claims (2)

1. The ventilation device, consisting of an intake pipe installed in the hole of the enclosing structure and closed with an external end face of the intake grill, characterized in that it contains a mosquito net located on the outer end of the air intake pipe, as well as a multilayer heat exchanger, which consists of profiled metal pipes placed in each other at a certain distance between each other, held in position by means of dividing inserts, the transverse size of each The profiled pipe sequentially increases to the internal size of the air intake pipe, and each profiled pipe is inextricably connected to its diffuser cup. 2. The device according to p. 1, characterized in that it may further comprise a fine filter installed in front of the heat exchanger in the input stream of external air.

Images