RU148405U1 - AIR VALVE - Google Patents

Abstract

1. An air exchange valve containing a pipe with a single air channel for supplying external air to a room equipped with a protective element from the outside, and inside the room with a damper installed at the end of the pipe with the possibility of adjusting the incoming air, and heat insulation in the form of a sleeve placed in the air channel of the pipe characterized in that the pipe is installed in the slope of the window slope and is made in the form of straight plastic pipes interconnected by a knee or elbows bent at an angle of 90 °, and the outer protective element Full of kozyrka.2. The air exchange valve according to claim 1, characterized in that it further comprises two non-return valves installed at opposite ends of the air channel, and a mechanical actuator for non-return valves located indoors. The air exchange valve according to claim 1, characterized in that the thermal insulation is made of foam material. 4. The air exchange valve according to claim 1, characterized in that an electric fan is additionally installed inside the air channel.

Description

The utility model relates to ventilation devices that are designed for natural ventilation of residential and public buildings.

A device for ventilating a room is known according to the invention patent RU 2313733, IPC F24F 7/04, F24F 12/00, publ. 12/27/2007, which contains two pipes communicating with the outside atmosphere and fixed in the glass of the window opening. The upper pipe serves to discharge the exhaust air, and the lower pipe - for fresh air to enter the room. At the ends of both pipes, valves are installed. The device also contains a heat pipe, the evaporation part of which is included in the upper pipe, and the condensation in the lower pipe. The design of the ventilation device in accordance with RU 2313733 allows to reduce heat loss during ventilation, but has low sound insulation. In addition, it violates the design of the glass and complicates its installation. In addition, the operation of the device largely depends on the location in the building (floor, prevailing wind direction, wind strength and other factors), which significantly affects the full operation of this device.

Also known options for the ventilation valve according to the patent for utility model RU 66488, IPC F24F 13/08, publ. 09/10/2007, which can be installed anywhere on the outer wall. The ventilation valve according to RU 66488 contains a plastic pipe with an air channel consisting of two air chambers of different lengths and different diameters. A filter is installed between the cameras. One of the chambers (external) has a partition, and the other has a heat and noise insulating insert or a heat and noise insulating insert and an additional silencer installed in the center of this chamber. Outside, the valve has a grill, and on the inside, a louvre grille. Due to the different diameters of the air chambers, the heat-insulating insert, the filter, the partition and the silencer through which the air passes, the required sound insulation and thermal insulation are provided.

The disadvantages of this design include the complexity of manufacturing, the lack of full-fledged operation when used on the upper floors of buildings, as well as high resistance to air passage through the valve.

Closest to the claimed air exchange valve adopted for the prototype is the KIV air infiltration valve, designed to supply outdoor air to the premises (Statvent, http://www.eneq.ru/prod_elements/klapans/kiv.html).

The valve consists of a plastic pipe with a single air channel for supplying outdoor air to the room. The channel has heat and noise insulation in the form of a sleeve. Outside, the channel is equipped with a protective element in the form of an external grill with a fine mesh, which is designed to protect from insects, poplar fluff, etc. Indoors, the air channel is closed by a head, which includes a damper with a sealing end, a filter, and an air intake adjustment unit. The unit for adjusting the incoming air allows you to open and close the damper using the handle on the cover of the head or cord. The valve is installed in the wall of the room, preferably above the window or near the window for better air circulation in the room due to air convection during operation of the heater and ease of maintenance of the external grill through the window. Although the valve of the prototype provides for the adjustment of incoming air, direct-flow air entering the room from the external environment can create discomfort in the room at low air temperatures. In addition, the implementation of the valve in the form of a straight pipe of constant cross section does not provide high sound insulation for rooms facing the highway with high intensities of traffic flows.

The objective of the utility model is to increase the heat-shielding and noise-insulating properties of the air exchange valve.

The technical result when operating the inventive device, aimed at solving the problem, is to increase the soundproofing ability and the absence of direct blowing due to the presence of elbows in the valve.

The task and the technical result are achieved as follows.

The air exchange valve, like the prototype, contains a pipe with a single air channel for supplying outdoor air to the room. As in the prototype, the pipe is equipped with a protective element on the outside, and a damper inside the room. The damper is installed at the end of the pipe with the ability to adjust the incoming air. It is also common that the valve contains heat and noise insulation in the form of a sleeve placed in the air channel of the pipe.

Unlike the prototype, the air exchange valve tube is installed in the slope of the window slope and is made of straight plastic pipes interconnected by one, two or three elbows made at an angle of 90 °. The outer protective element of the air exchange valve is made in the form of a visor.

To improve the adjustment of the incoming air, the air exchange valve may additionally contain two non-return valves installed at opposite ends of the air channel, and a mechanical actuator for non-return valves located indoors. An electric fan can be additionally installed inside the air channel to provide a directed supply of fresh air with a small pressure drop outside and inside the premises (last floors of buildings, warm periods, etc.). Heat and sound insulation is made of foam material.

The utility model is illustrated by the attached drawings, where in FIG. 1 is a plan view of a single track air exchange valve. In FIG. 2 is a section 1-1 of FIG. 1. In FIG. 3 is a view A of FIG. 2. In FIG. 4 is a plan view of a two-knee air exchange valve. In FIG. 5 is a section 1-1 of FIG. 4. In FIG. 6 is a view A of FIG. 4. In FIG. 7 shows a three-knee valve in plan. In FIG. 8 is a section 1-1 of FIG. 7. In FIG. 9 is a view A of FIG. 7.

The air exchange valve consists of plastic pipes 1 with a diameter of 100-125 mm, connected by an elbow 2 at an angle of 90 ° and installed in the slope of the slope of the window opening. The mounting gap between the plastic pipe and the stub is filled with mounting foam 3. On the inside there is a shutter 4, which can be made in various forms (plate-shaped twisting, louver, etc.), on the outside - a visor 5, which protects the air channel from getting precipitation. To increase heat and noise insulation, increase sound absorption at high frequencies, a sound-absorbing sleeve 6 made of foam material is placed in the air channel. It is possible to use the sleeve 6 from another material that provides absorption in the high frequency region. To regulate the flow of air through the air channel, two check valves 7 can be placed in the channel, installed at the opposite ends of the air channel, having a mechanical or electric drive from the room. An electric fan 8 can also be used to control air intake.

The device operates as follows. Air enters the air duct when the internal damper 4 is open and the non-return valves are open 7. When an electric fan 8 is installed, the fan provides directional air flow to the room regardless of wind speed, location of the valve on the windward or leeward side and other factors. Sound loss occurs in straight sections of the valve (pipe 1), as well as in the elbows 2 when turning 90 °. Sound-absorbing sleeve 6 made of foam material provides additional sound absorption and increase the sound insulation and thermal insulation of the valve structure. During the experiments it was found that the three-knee valve has a sound insulation of 28 dBA, the two-knee valve - 26-27 dBA, the single-track valve - 25 dBA. When the valve is closed, when the check valves 7 and the internal shutter 4 are closed, 2 closed air gaps are formed, providing high thermal protection characteristics of the valve in the closed state.

Claims (4)

1. An air exchange valve containing a pipe with a single air channel for supplying external air to a room equipped with a protective element from the outside, and inside the room with a damper installed at the end of the pipe with the possibility of adjusting the incoming air, and heat insulation in the form of a sleeve placed in the air channel of the pipe characterized in that the pipe is installed in the slope of the window slope and is made in the form of straight plastic pipes interconnected by a knee or elbows bent at an angle of 90 °, and the outer protective element Full as a visor. 2. The air exchange valve according to claim 1, characterized in that it further comprises two non-return valves installed at opposite ends of the air channel, and a mechanical actuator for non-return valves located indoors. 3. The air exchange valve according to claim 1, characterized in that the thermal insulation is made of foam material. 4. The air exchange valve according to claim 1, characterized in that an electric fan is additionally installed inside the air channel.

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