JPH094893A - Ventilating device for building - Google Patents

Abstract

PURPOSE: To provide a ventilating device for a building to increase the induction force and the induction range of a cylinder body, such as a motor, and improve the ventilation efficiency. CONSTITUTION: A ventilation port 8 is formed in a wall part 4 of a building 2 and a monitor 10 comprises a cylinder body 12 protruded upward from a roof 6 of the building 2, a roof member 14 mounted above the cylinder body 12, and an exhaust port 16 formed in the upper end pat of the cylinder body 12 positioned below the roof member 14. A plurality of openings 20 are formed at equal intervals in the peripheral direction of the outer peripheral surface of the cylinder body 12 positioned below the exhaust port 16. Blade bodies 22 are arranged at a plurality of the respective openings 20 approximately at a uniform angle with respect to the radial direction of a cylinder body 12 part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a ventilation system for buildings,
More specifically, the present invention relates to a ventilation device that enhances the ventilation efficiency of a ventilation system that uses a tubular body such as a monitor protruding from the roof.

[0002]

2. Description of the Related Art Conventionally, there is already known a ventilation system in which a monitor is projected from the roof of a building and the inside of the building is ventilated by this monitor and a ventilation hole (gallery) provided on the wall of the building. Has been. FIG. 4 is a schematic front view of a building equipped with a conventional monitor, FIG. 5 is a sectional plan view of the building, FIG. 6 is a front view of the monitor, and FIG. 7 is a sectional plan view of a cylinder forming the monitor. 2 is a building, 4 is a wall portion, 6 is a roof, 8 is a ventilation port (gallery) provided in the wall portion, 10 is a monitor, and monitor 1
Reference numeral 0 is a cylinder that is connected to the inside of the building 2 and projects upward from the roof 6 and a conical roof member 14 that is mounted above the cylinder 12 and that is positioned below the roof member 14. An exhaust port 16 is provided at the upper end portion of the body 12. Then, the external wind passing around the monitor 10 causes an incentive action on the monitor 10, and the buoyancy due to the heat generated inside the building 2 takes in the outside air from the ventilation port 8 and the exhaust port 16 of the monitor 10 inside the building 2. I try to exhaust the air.

[0003]

However, there is a limit to the incentive force and incentive range of the monitor 10 as described above.
Therefore, as shown in the front view of FIG. 8, if there is a pollutant source 18 inside the building 2, the pollutant source 18
1802 generated from the
There was a problem that part of the pollutant 1802 was diffused into the building 2 due to the outside air entering from the ventilation port 8. The present invention has been devised in view of the above circumstances, and an object of the present invention is to expand a triggering force and a triggering range of a tubular body such as a monitor and to enhance ventilation efficiency of a building. To provide.

[0004]

In order to achieve the above-mentioned object, the present invention provides a ventilation opening provided in a wall portion of a building, and a cylindrical body communicating with the inside of the building and protruding from the outside of the building. In a building having an exhaust port provided at the tip of the tubular body,
Openings are formed at a plurality of locations spaced in the circumferential direction of the outer peripheral surface of the tubular body portion closer to the building than the exhaust port of the tubular body, and the plurality of openings are formed substantially in the radial direction of the tubular body portion. It is characterized in that the vane plates are provided with a uniform inclination angle.

Further, the present invention is characterized in that the cylindrical body is a monitor provided so as to project upward from a roof of a building. Further, the present invention is characterized in that a roof member is provided on the upper portion of the tubular body with a contour larger than that of the tubular body, and the vane plate is arranged within the contour of the roof member when seen in a plan view. And

[0006]

The external wind enters the inside of the cylinder through the openings with a uniform inclination angle with respect to the central axis of the cylinder, and a swirling flow is generated inside the cylinder. Due to this swirling flow, the attractive force and the attractive range of the cylindrical body are expanded, and the ventilation efficiency is enhanced.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic front view of a building provided with a ventilation device according to an embodiment, FIG. 2 is an enlarged front view of a monitor portion, and FIG. 3 is a sectional plan view of the monitor portion. This embodiment is applied to the monitor type ventilation device shown in FIGS.
A ventilation port 8 is provided in the wall portion 4 of the building 2, and the monitor 10 is
A cylinder 12 protruding upward from the roof 6 of the building 2 and the cylinder 1
Roof member 14 mounted above 2 and roof member 1
4 is similar to the conventional one in that it has an exhaust port 16 provided at an upper end portion of a tubular body 12 located below 4, and the wall portion 4 of the building 2 is provided in a cylindrical shape. It has a circular shape.

In this embodiment, the exhaust port 16
A plurality of openings 20 are formed at equal intervals in the circumferential direction of the outer peripheral surface of the tubular body 12 in the tubular body 12 portion below, that is, in the tubular body 12 portion closer to the roof 6 than the exhaust port 16. Further, vane plates 22 are provided in the plurality of openings 20 so as to have a substantially uniform inclination angle with respect to the radial direction of the cylindrical body 12. The conical roof member 14
Is formed with a contour larger than that of the cylindrical body 12, and the vane plate 22 is arranged within the contour of the roof member 14 in a plan view.

According to the present embodiment, the external wind enters the inside of the cylindrical body 12 through the opening 20. And the external wind is each opening 2
Guided from 0 by the respective blades 22,
Since it enters the inside of the cylindrical body 12 with a uniform inclination angle with respect to the central axis of the, the swirling flow is generated inside the cylindrical body 12 by the external wind entering from each opening 20. Then, the swirling flow expands the incentive force and the incentive range of the monitor 10 to enhance the ventilation efficiency.

This is because when a swirling flow is generated inside the cylindrical body 12, a negative pressure A is generated at a peripheral portion 32 immediately below the monitor 10 inside the building 2 as shown in FIG. Negative pressure B is generated in the upper portion 34 of the cylindrical body 12 above the opening 20, and a negative pressure C is generated outside the cylindrical body 12 and in the peripheral portion 36 below the roof member 14, and these negative pressures A, It is considered that the magnitudes of B and C have a relationship of negative pressure C> negative pressure B> negative pressure A.

Further, even if the pollutant 1802 is generated from the pollutant source 18 inside the building 2 by expanding the trigger force and the trigger range of the monitor 10, the pollutant 1802 is diffused inside the building 2. Monitor 10 without
Will be promptly discharged to the outside of the building 2.

The shape of the building 2 is not limited to the circular shape in plan view,
The shape may be polygonal or any other shape, and in short, it can be applied to all of the building 2 in which ventilation is performed by the ventilation port 8 provided in the wall portion 4 and the cylindrical body 12 communicating with the inside of the building 2. In the embodiment, the case where the tubular body 12 is the monitor 10 has been described, but the present invention projects the tubular body horizontally from the wall portion 4 of the building 2 toward the outside of the building 2 and extends horizontally. Of course, the present invention can be applied to the case where the opening 20, the vane plate 22 and the exhaust port 16 are provided in the cylindrical portion.

Further, the building 2 to which the present invention is applied widely includes a case of a membrane structure in which the wall portion 4 and the roof 6 are made of a film body, and the cylindrical body 12 is also made of a film body. And so on. In addition, the present invention is suitable because the ventilation can be efficiently performed without using any energy particularly when the internal space of the building is large, such as an exhibition hall, a stadium, a playground, and a gymnasium. In addition, a mechanism for adjusting the inclination angle of the blade plate 22 is optional.

[0014]

As is apparent from the above description, the present invention provides a ventilation opening provided in a wall of a building, a cylindrical body communicating with the inside of the building and projecting outside the building, and the cylinder. In a building having an exhaust port provided at the tip of the body, an opening is formed at a plurality of positions spaced in the circumferential direction of the outer peripheral surface of the tubular portion closer to the building than the exhaust port of the tubular body, The openings are provided with vane plates each having a substantially uniform inclination angle with respect to the radial direction of the cylindrical portion. Therefore, the external wind enters the inside of the cylindrical body through each opening, and a swirling flow is generated inside the cylindrical body.
The inciting force and the incentive range by the cylinder are expanded, and the ventilation efficiency can be enhanced.

[Brief description of drawings]

FIG. 1 is a schematic front view of a building including a ventilation device according to an embodiment.

FIG. 2 is an enlarged front view of a monitor portion.

FIG. 3 is a cross-sectional plan view of a monitor portion.

FIG. 4 is a schematic front view of a building equipped with a conventional monitor.

FIG. 5 is a cross-sectional plan view of the building.

FIG. 6 is a front view of a conventional monitor.

FIG. 7 is a cross-sectional plan view of a cylinder that constitutes a conventional monitor.

FIG. 8 is an explanatory diagram of ventilation by a conventional monitor.

[Explanation of symbols]

 2 Buildings 4 Walls 6 Roof 8 Ventilation port 10 Monitor 12 Cylindrical body 14 Roof member 16 Exhaust port 20 Opening 22 Vane

Claims (3)

[Claims] 1. A ventilator provided in a wall of a building, a tubular body communicating with the interior of the building and protruding from the exterior of the building, and an exhaust port provided at a tip of the tubular body. In a building, openings are formed at a plurality of positions spaced in the circumferential direction of the outer peripheral surface of the tubular portion closer to the building than the exhaust port of the tubular body, and in the plurality of openings, in the radial direction of the tubular portion. A ventilation device for a building, characterized in that a vane plate is provided to each of them with a substantially uniform inclination angle. 2. The ventilation device for a building according to claim 1, wherein the tubular body is a monitor provided so as to project upward from a roof of the building. 3. The roof member is provided on the upper portion of the tubular body with a contour larger than that of the tubular body, and the vane plate is arranged within the contour of the roof member when seen in a plan view. Building ventilation system.