JP2871267B2 - Indoor ventilation system for buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor ventilation system for a building capable of naturally ventilating a room in an optimum state regardless of a wind direction and a wind speed.

[0002]

2. Description of the Related Art As a method of naturally ventilating a room of a building without using forced ventilation, it is common to appropriately open ventilation holes and windows provided on an outer wall.

[0003]

However, the efficiency of natural ventilation depends on the wind direction, and it is not only necessary to take measures against strong winds, but also it involves complicated manual operations such as labor for opening and closing ventilation openings and windows. In ordinary houses, this kind of trouble is relatively insignificant, but when trying to naturally ventilate the interior of an office building, the windows must be manually opened and closed, and people at night and on holidays may be Otherwise, natural ventilation cannot be desired. In addition, even if the windows are opened, the ventilation volume is different between the windward room and the leeward room, and even in the same room, there are many inconveniences such as the wind blowing strongly at the window and the documents being scattered. We had to rely on forced ventilation by equipment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to detect a wind direction and a wind speed around a building, and automatically adjust opening and closing of a corresponding ventilation window based on a result of the detection. It is an object of the present invention to provide an indoor ventilation system for a building that allows natural ventilation of an indoor space in an optimal state regardless of wind speed.

[0005]

Means for Solving the Problems] To achieve the above object, an indoor ventilator of a building according to the invention, blow inside
A void is formed and the room is connected near the ceiling on each floor.
A hollow column that passes through the building by forming an exhaust port through it;
A polygonal or circular cross section is formed around the hollow column.
Outer wall and a ventilation duct formed in a loop shape along the outer wall is provided under the ceiling or on the ceiling in each floor of the building, is provided at appropriate intervals on the outer wall the ventilation
Numerous openable windows that communicate with the duct , Numerous air supply openings that are opened into the rooms on each floor at appropriate intervals on the inner periphery of the ventilation duct , and open / close adjustment provided for each window Means for detecting wind direction and wind speed around the building;
And Wind detector, the wind direction, and means for calculating the opening and closing degree of the opening and closing adjustment means on the basis of the wind direction and wind speed data obtained by the wind speed detecting means, to drive the opening and closing adjustment means based on the calculation result The opening and closing of the window is adjusted.

[0006]

[Action] ventilation windows located upwind by wind direction data is specified, it is determined opening degree of the ventilation windows appropriate depending on the wind speed data, the ventilation windows Ru is adjusted automatically opened and closed. The wind blown into the building from the windward side passes through the duct in a spiral shape, enters the room through the opening formed on the inner periphery of the duct,
It is discharged from the center of the building to the outside through the opening of the hollow column.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a building to which the present invention is applied. This building is a plan of a multi-story building in which a substantially circular polygonal outer wall 2 is formed around a hollow column 1 passing through the building. I have.

The interior of the column 1 constitutes an atrium, and the uppermost part has a rain-closing structure (not shown). In the outer peripheral portion of the column 1, an exhaust port 1a communicating with the inside of the column 1 is formed in the vicinity of the ceiling surface 3a under the slab 3 for each floor, and a space for each floor surrounding the column 1 is provided. It is a general living room. At the lower part of the slab 3 on each floor, a number of ventilation windows 4 are arranged on the outer wall 2 along the peripheral surface.

At the lower part of the ventilation window 4 and along the outer periphery of the building
Is ventilated duct 5 that pass the ventilating window 4 duplicate fixedly disposed is formed into a loop I. This duct 5 has each floor
A large number of air supply openings 5a, which are opened at appropriate intervals in the room , are formed in slits. Each opening 5
“a” is set to an inclination angle that causes downdraft toward the indoor side.

When the lower surface of the ventilation duct 5 is made of a transparent member, an internal lighting effect can be obtained by natural lighting from each ventilation window 4. If a filter is provided near each ventilation window 4, dust can be prevented from entering during ventilation.

Each ventilation window 4 has a structure that can be opened and closed at an arbitrary angle by a motor drive system, and is controlled to be opened and closed by control means such as a microcomputer shown in FIG. The control means in the figure includes wind direction detecting means 7, wind speed detecting means 8, outside air temperature detecting means 9, temperature and humidity detecting means 10 for each floor, wind speed detecting means 11, and wind speed detecting means 11 around the building. An operation control unit 15 is provided which receives data and data from the separately provided air conditioner 12 and key input device 14 and controls the drive of the drive motors M1 to Mn attached to the ventilation windows 4. The control unit 15 executes the following control according to each input state as shown in the flowchart of FIG.

In FIG. 4, first, whether or not the natural ventilation mode is set is designated by an instruction from the key input device 14, and if the natural ventilation mode is not set, it is searched whether there is a previous open position, and the open position is searched. If so, a drive command is issued to one of the corresponding motors M1 to Mn to completely close the ventilation window 4 (steps 1 to 3).

When the natural ventilation mode is set, the data of the detecting means 7 to 11 is read, and when the indoor / outdoor temperature difference is equal to or larger than the set value, the wind direction detecting means 7 applies the corresponding ventilation window on the windward side. 4 is calculated (step 4).
~ 6).

Next, the air flow corresponding to the air conditioning load in the room is calculated, the opening of the corresponding ventilation window 4 corresponding to this air flow is calculated, and one of the corresponding drive motors M1 to Mn is set to the set opening. It is driven accordingly (steps 7 and 8).

Thereafter, the temperature and humidity in the room and the maximum airflow velocity are monitored, and if the indoor maximum airflow exceeds the set value, step 7 is repeated.
Returning to the above, the ventilation window 4 was corrected to the optimal opening, and when it was less than the set value, the outdoor wind direction and wind speed were monitored, and if these were changed, a command to close the previously opened ventilation window 4 was issued. Thereafter, the operation of returning to Step 1 is repeated (Steps 9 to 9).
13).

When the ventilation window 4 corresponding to the external wind direction is opened according to the above control operation, the wind blown into the building from the ventilation window 4 on the windward side as shown by arrows in FIGS. 5 while turning in a loop, and each air supply opening 5
After blowing down from a into the room and colliding with the floor,
The gas is discharged from the exhaust port 1a of the column 1 to the outside through a blow-through portion inside the column. The degree of opening of the ventilation window 4 is constantly adjusted according to the wind speed outside the building, so that each part in the room is uniformly supplied at a constant wind speed corresponding to the air conditioning load. Although the ventilation duct 5 is provided below the ceiling surface 3a in the embodiment, it may be provided below the ceiling. In this case, the air supply opening may be communicated with the ceiling surface. In this embodiment, the building is formed on the substantially circular polygonal outer wall 2. However, the building may be formed into a triangle with a smaller number of sides, a polygon having a larger number of sides, or a circle.

Further, to freely adjust the opening of the air supply opening 5a, the opening of the wind on the side by smaller than that under the wind, it is possible to further equalized air supply into the room .

In order to further reduce the effect of wind damage to the surroundings of the building when the wind is strong, an opening 5b whose degree of opening can be adjusted between the ceiling and the duct may be provided so that air can pass through the ceiling.

[0019]

As described in detail in the above embodiments, in the natural ventilation system for a building according to the present invention, the ventilation window located on the windward side is specified by the wind direction data, and corresponds to the wind speed data. The degree of opening and closing of the ventilation window is determined, and the corresponding window automatically opens and closes at a predetermined opening,
Without the hassle of manual opening and closing operation due to natural ventilation,
The wind speed is set to the optimum value, and the air is blown from all around the room, so there is no unevenness depending on the location. Because of this, wind damage to surrounding areas can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a building provided with a natural ventilation device according to the present invention.

FIG. 2 is a longitudinal sectional view of the building.

FIG. 3 is a block diagram of a wind direction and wind speed control means.

FIG. 4 is a flowchart showing a control procedure of the control means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Column 1a Exhaust port 2 Outer wall 3 Slab 3a Ceiling surface 4 Ventilation window 5 Ventilation duct 5a Air supply opening 7 Wind direction detecting means 8 Wind speed detecting means 15 Arithmetic control unit Ml to Mn Drive motor (opening / closing adjusting means)

Claims (1)

(57) [Claims] 1. A stairwell is formed inside, and a ceiling on each floor is provided.
A hollow column which stringers building to form an exhaust port communicating with chamber in the vicinity of the well, and an outer wall formed in a polygonal or circular cross section around the hollow column, ceiling or in the ceiling of each floor of the building a ventilation duct formed in a loop shape along the outer wall provided below, a number of open windows that communicates with the ventilation duct is provided at appropriate intervals in the outer wall, the inner peripheral portion of the ventilation duct A large number of air supply openings that are opened into the rooms on each floor at appropriate intervals, opening and closing adjustment means provided for each window, and wind direction and wind speed detection means for detecting the wind direction and wind speed around the building. , This wind direction,
Means for calculating the opening / closing degree of the opening / closing adjustment means based on the wind direction and wind speed data obtained by the wind speed detection means, and driving the opening / closing adjustment means based on the calculation result to adjust the opening / closing of the window. An indoor ventilation device for a building, characterized in that: