RU2637353C1 - Exhaust pipe deflector by nesterov - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: exhaust pipe deflector comprises an exhaust pipe, a deflector cylinder, blades, posts and hood-cap. The deflector cylinder is fixed on the exhaust pipe by means of blades arranged with an equal pitch along the circumference of the exhaust pipe, the hood-cap is fixed on the deflector cylinder by means of posts at a distance from the deflector cylinder. Each blade comprises a gripping element with side walls, which with its upper edge transforms at angle into the chute with side walls, which in turn transforms with its upper edge into the upper part and the upper side, at that the upper part of the chute is bent radially to the opposite side from the direction of the gripping element, and the upper side located on the side of one of the chute side walls is wrapped around the vertical axis, and the gripping element of each blade is below the lower edge of the deflector cylinder.

EFFECT: improved efficiency of the device operation and the entire exhaust system.

11 cl, 3 dwg

Description

The invention relates to devices for enhancing traction and the upper parts of ventilation shafts, and in particular to deflectors providing the induction of natural air exhaust due to wind pressure, and can be used in ventilation systems.

Various devices are known in the art for enhancing draft in hoods.

For example, from the document DE 4135880 A1, a deflector of a pipe of an exhaust system of a building is known, which, due to the presence of an entrance opening for the wind located below the exit opening for the wind mixed with the air leaving the system, increases the draft.

From the document GB 181002 A, a pipe deflector is known for the exhaust system of a building, which, due to the presence of an entrance opening for wind located below the exit opening for wind mixed with the air leaving the system, provides an increase in draft. At the same time, the wind inlet is guides located around the circumference of the pipe with equal pitch, which provide the opportunity for better intake of wind from any direction.

This document is taken by the applicant as the closest analogue of the invention.

The disadvantage of the closest analogue, as well as the entire prior art is the lack of efficiency.

The objective of the invention is to eliminate the disadvantages of the prior art.

Thus, the technical result to which the invention is directed is to increase the overall performance of the device and the exhaust system.

The claimed device is intended to provide a natural stimulation of contaminated air due to wind pressure.

The exhaust pipe deflector comprises an exhaust pipe, a deflector cylinder, vanes, racks and an umbrella hood. The deflector cylinder is fixed to the exhaust pipe with blades located with equal pitch around the circumference of the exhaust pipe, and an umbrella cap is mounted on the deflector cylinder with racks at a distance from the deflector cylinder. Each blade contains a gripping element with side walls, which with its upper edge passes at an angle into the groove with side walls, which in turn passes with its upper edge to the upper part and the upper side, and the upper part of the groove is bent radially in the opposite direction from the direction of the gripper element, and the upper side, located on the side of one of the side walls of the gutter, is wrapped around a vertical axis, and the gripping element of each blade is located below the lower edge of the cylinder deflector.

The side walls of the gripping element may have different heights.

The side walls of the gutter can have both the same height and different.

The side walls of the gutter have different lengths.

Racks are fixed on the deflector cylinder removable.

The exhaust pipe deflector can be made of plastic, or stainless steel, or galvanized sheet.

The preferred number of blades is four.

Further, the invention is disclosed in more detail with reference to the accompanying drawings, in which:

In FIG. 1 - declared deflector, side view,

In FIG. 2 - declared deflector, top view,

In FIG. 3 - the blade of the claimed deflector.

The deflector comprises a chimney (1), vanes (2), a deflector cylinder (3). Moreover, the cylinder (3) of the deflector is attached to the ventilation pipe (1) with the help of blades (2). On the upper part of the cylinder (3) of the deflector, the posts (4), to which the umbrella cap (5) is attached, are uniformly fixed around the circumference in a removable manner. The cylinder of the deflector has a larger diameter than the exhaust pipe, and they are located coaxially.

The blades (2) are arranged and fixed uniformly around the circumference of the chimney (1) so that each of them forms a vertical channel for the passage of the wind flow directed upward to the outlet of the chimney (1).

For maximum effect (creating maximum drawing force of polluted air) all blades (2) are the same. Each blade (2) is a U-shaped vertical trough (6) with side walls (7 and 7a), and the wall (7) is longer than the wall (7a). On the bottom side (8) of the groove (6) is attached at an angle or is an integral part of the gripping element (9), which also contains side walls (10 and 10a). Moreover, the side wall (10a) of the gripping element (9) has a height greater than the height of the side wall (10) of the gripping element (9). The upper part (11) of the chute (6) is bent to a certain radius in the opposite direction from the direction of the gripping element (9) (in Fig. 3 the dotted line indicates the position of the upper part without bending), without bending the side wall (7). The upper side (12) of the groove (6), which is located on the side of the side wall (7a), is wrapped around a vertical axis (in Fig. 3, the dotted line indicates the position of the upper side without bending).

The gripping elements (9) of each blade is located in the deflector lower than the lower edge of the cylinder (3) of the deflector for greater efficiency of the device. The groove (6) for moving air from under the cylinder to the outlet of the exhaust pipe (1) of the deflector is parallel to the exhaust pipe (1) along the direction of the polluted air from the building. The upper part (11) and the upper side (12) of the trough (6) directs the air flow in such a way that it mixes with the exhaust air from the exhaust pipe (1) and is picked up by the air flow passing under the umbrella hood (5). The umbrella hood (5) is designed not only to protect the air channel from precipitation and extraneous debris, but also helps to mix flows and gives them the speed of the branch

Thus made blades (2) provide the maximum intake of the wind passing by the exhaust pipe (1) to direct it towards the outlet of the exhaust pipe (1).

As indicated above, the posts (4) are fixed in a removable manner (by any known method) to the deflector cylinder (3) to simplify the possibility of cleaning the deflector itself and the exhaust pipe, as well as for convenient transportation of the deflector.

The claimed deflector can be made of plastic, or stainless steel, or galvanized sheet.

The claimed device operates as follows.

The exhaust pipe (1) of the deflector is fixed to the exhaust pipe of a building (not shown). When wind hits the gripping element of the blade, an additional rarefaction is created at the outlet of the chimney due to ejection. The external air flow through the blades is mixed with air from the exhaust pipe and draws the flow in proportion to the strength of the wind, which creates a more efficient extraction of polluted air from the exhaust pipe of the building.

Thus, the claimed deflector of the exhaust (ventilation) pipe of the building allows to increase the efficiency of exhaust ventilation.

Claims (11)

1. A chimney deflector comprising a chimney, a deflector cylinder, blades, racks and an umbrella hood, the deflector cylinder being fixed coaxially to the chimney with vanes arranged at equal pitch around the chimney circumference, and fixed to the deflector cylinder with racks umbrella hood at a distance from the deflector cylinder, characterized in that each blade contains a gripping element with side walls, which with its upper edge passes at an angle into a groove with side walls, which in turn passes the upper edge to the upper part and the upper side, the upper part of the gutter being bent radially in the opposite direction from the direction of the gripping element, and the upper side, located on the side of one of the side walls of the gutter, is wrapped around a vertical axis, and the gripping element of each blade is located below the bottom edge of the deflector cylinder. 2. The exhaust pipe deflector according to claim 1, characterized in that the side walls of the gripping element have different heights. 3. The exhaust pipe deflector according to claim 1, characterized in that the side walls of the chute have the same height. 4. The exhaust pipe deflector according to claim 1, characterized in that the side walls of the chute have different heights. 5. The exhaust pipe deflector according to claim 1, characterized in that the side walls of the chute have different lengths. 6. The exhaust pipe deflector according to claim 1, characterized in that the posts are removably mounted on the deflector cylinder. 7. The exhaust pipe deflector according to claim 1, characterized in that it is made of plastic. 8. The exhaust pipe deflector according to claim 1, characterized in that it is made of stainless steel. 9. The exhaust pipe deflector according to claim 1, characterized in that it is made of galvanized sheet. 10. The exhaust pipe deflector according to claim 1, characterized in that the number of blades is equal to four. 11. The exhaust pipe deflector according to claim 1, characterized in that the deflector cylinder and the exhaust pipe have different diameters.

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