EA021370B1 - Ventilation device - Google Patents

Abstract

The invention relates to ventilation and can be used as a device of air intake into premises mainly in cold climate areas. The technical result provides simplification of the ventilation device design for use in different outside temperatures and ensuring outside noise protection during operation. To achieve the result, the device comprises a cylindrical housing (1) with a window (2), a plate-shaped adjustable valve (3) arranged in the housing and adapted to move there along, a clamp device (5) with fixing elements (6) mounted on the housing adapted to fix the adjustable valve (3). According to the invention, the device further provided with heat-soundproof layer (4) having a cellular structure and arranged in the window, the perimeter of cells not exceeding 20 mm, wherein the axes of cellular channels are parallel to the air direction through the window.

Description

The invention relates to the field of ventilation and can be used as a device for the influx of outdoor air into the room, mainly in areas with a cold climate.

A ventilation device is known that comprises a housing with coaxially located input and output windows, a rotary valve located in the housing, made of segmented bars connected to each other to form a diametrical gap, and sealing elements between the housing and the valve (ed. St. USSR No. 821862, priority date 01/05/1979, publication date 04/15/1981, author Kuzema G.P., KI).

The disadvantages of the known ventilation device are its large size with a relatively small living section of the window and the difficulty in manufacturing.

Closest to the invention in technical essence and the achieved result is a ventilation device adopted as a prototype, comprising a housing with a window, a control valve located in the housing, made in the form of a plate, vertically movable and fixed by a clamping frame, mounted on the housing using fasteners with the possibility of its movement in the direction perpendicular to the plane of the frame, and sealing elements placed in the gaps between the housing and the valve (RF patent No. 2132516 C1, date pr priorities 26.03.1997, publication date 27.06.1999, author Kuzema GP CI prototype).

The disadvantages of the prototype are the complexity of the ventilation device due to a change in the thickness of the valve or valve material, depending on the change in thermal protection of the valve when the temperature of the outside air changes, and the absence of a noise muffler.

The objective of the invention is to simplify the ventilation device used at various outdoor temperatures, and equip the device with a noise muffler.

To solve this problem, a ventilation device comprising a housing with a window, a control valve in the form of a plate mounted in the housing with the ability to move along it, a clamping device with fasteners mounted on the housing with the possibility of fixing the control valve, according to the invention, it is additionally provided with the window with a heat and sound insulating layer with a honeycomb structure made with a cell perimeter not exceeding 20 mm and with the axis of the honeycomb channels parallel to air flow through the window.

According to the invention, a part of the heat and sound insulation layer is placed in the ventilation opening.

According to the invention, the clamping device is made in the form of clamping rails.

In FIG. 1 schematically shows a ventilation device, a view from the room; in FIG. 2 is a section AA in FIG. one; in FIG. 3 - node B in FIG. one.

The ventilation device comprises a housing 1 with a window 2, a control valve 3 adjacent to the housing, a layer of heat and sound insulation 4, located in the window 2 and providing thermal protection of the control valve, as well as protection of the ventilation device from noise, and a pressing device 5 with fasteners 6 for fixing the control valve. Moreover, the layer of heat and sound insulation 4 is made with a honeycomb structure, with a cell perimeter (2a + 2b) not exceeding 20 mm, and with the location of the axis of the honeycomb channels parallel to the direction of air movement through the window (Fig. 3). As the material of said layer, any material with low thermal conductivity, for example, plastic, can be used.

The ventilation device operates as follows. The air flow is regulated by changing the living section of the window 2, equipped with a layer of heat and sound insulation 4, by moving the control valve 3 along it. The tight connection of the control valve 3 to the layer of heat and sound insulation 4 and fixing it in the housing 1 is carried out by moving the clamp devices 5 to the housing 1 with screws 6. As the clamping device 5, for example, a clamping frame or clamping bars can be used. Thermal protection of the control valve 3 is provided by a layer of heat and sound insulation 4 having a honeycomb structure. The thickness of the layer 4 and the housing are adopted based on the heat engineering calculation. Part of the thermal insulation layer 4 can be placed in the ventilation opening, and the thickness of the housing 1 can be reduced. Thermal protection of the device is ensured by the fact that with the closed position of the control valve 3 and with the perimeter of the cell cells not exceeding 20 mm, there is no convective heat transfer. Heat transfer through layer 4 in this case occurs due to the thermal conductivity of the stationary air in the channels of the cells and the thermal conductivity of the walls of the cellular channels. This eliminates the need to change the material or thickness of the control valve.

Calculations show that if the insulation layer thickness is 30 mm, condensate will not precipitate on the inner surface of the valve made of 6 mm plywood and installed in the living room if the outdoor temperature does not drop below minus 40 ° С.

Protection against noise when the control valve 3 is open is also provided by a layer of heat and sound insulation 4, the material of which has a honeycomb structure.

Claims (2)

CLAIM 1. A ventilation device comprising a housing with a window, a control valve in the form of a plate mounted in the housing with the ability to move along it, a clamping device with fasteners mounted on the housing with the possibility of fixing the control valve, characterized in that it is additionally provided with a window an aperture with a heat and sound insulating layer with a honeycomb structure made with a cell perimeter not exceeding 20 mm and with the axis of the honeycomb channels parallel to the direction of travel ear through the window. 2. The ventilation device according to claim 1, characterized in that the clamping device is made in the form of clamping rails.