JPS6042391B2 - Air conditioning system for buildings with stepped audience seating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioning system for a building equipped with stepped audience seats, and in particular, an air supply chamber is provided between a floor slab and the audience seat floor, and air conditioning and heating are carried out from the air outlet in the audience seat floor. By blowing out fresh air, the system creates a comfortable environment only in the limited living area around the audience seats, and significantly reduces air conditioning energy.

In general, indoor stadiums, theaters, etc. have staircase-shaped audience seats, so the ceilings are high and the interiors are vast spaces.

Conventionally, air conditioning methods used in buildings with large spaces include downward blowing systems using ceiling nozzles and ceiling diffusers, horizontal blowing systems using large horizontal nozzles and horizontal diffusers, and upward blowing systems. All of these systems circulate the blown air throughout the building through convection. However, air conditioning of a large building using the air blowing method described above means that even though the living area of the audience is a part of the entire building, Since most of the air conditioners would have to be air-conditioned, this would lead to a decrease in efficiency and loss of air-conditioning energy, which would run counter to current demands for energy conservation.

In addition, when installing air conditioning equipment, conventional air blowing methods require work to be done at high places on the roof or walls of buildings, which is not only difficult, but also requires special consideration for safety measures. There was a problem with that.

This invention was made in order to solve the above problems, and the purpose of this invention is to limit the air conditioning of a building equipped with stepped audience seats to the minimum necessary space around the audience seats. Our goal is to provide air conditioning equipment that can
Further, an object of the present invention is to improve the air conditioning efficiency of a building equipped with stepped spectator seats and to significantly save air conditioning energy; To make the construction of air conditioning equipment easier and safer, and to reduce the cost of air conditioning equipment.

That is, the present invention, as in the illustrated embodiment, includes a floor slab 1 and a stepped audience seat floor 2 provided above the floor slab 1.
An air supply chamber 6 is formed between the air conditioner 10, ducts 13 and 14 extending from the air conditioner 10 are connected to the lower surface of the floor slab 7-lab 1, and an air pressure adjustment box 15 is provided at the outlet of the ducts 13 and 14. , relates to an air conditioning system for a building equipped with stepped spectator seats, characterized in that an air outlet 8 is provided in a stepped member 3 of a spectator seat floor 2.

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows an example of an indoor stadium, in which a floor slab 1 with an inclined surface is poured with concrete, and spectator seat floors 2 are installed in a stair-like manner at appropriate intervals above the floor slab 1. do.

The audience seat floor 2 is formed and assembled using PC boards, iron plates, and other appropriate board materials. Spectator seats 4 are provided on each stage of the spectator seat floor 2, and spectators 5 are seated therein. The space between the floor slab 1 and the audience seat floor 2 forms an air supply chamber 6, and an air outlet 8 is provided in the stepped member 3 of the audience seat floor 2 at each level. This air supply chamber 6 is divided into columns, rows, and audience seats 4 at appropriate intervals, and each section is hermetically sealed off between the audience seat floor 2 and the floor slab 1. Further, a heat insulating material (not shown) is attached to the floor slab 1. FIG. 2 shows an air conditioning system for one section of air supply room, in which branch ducts 13 and 14 of the duct 12 extending from the air conditioner 10 are connected to the lower surfaces of the upper and lower parts of the floor slab 1.

Branch ducts 13 and 14 for cooling and heating air from the air conditioner 10
The air is supplied to the air supply chamber 6 through the air supply chamber 6, and the air is blown out from the air outlet 8 of the audience seat floor 2. floor slab 1
The branch ducts 13 and 14 connected to the upper and lower and . An appropriate number shall be selected at an appropriate position in the left and right direction.

An air pressure adjustment box 15 shown in FIG. 3 is installed at the outlet at the upper end of the branch ducts 13, 14.

This air pressure adjustment box 15 has a rectangular shape as shown in FIG.
The dynamic pressure of the air blown out from the air supply chamber 14 is converted into static pressure, and the pressure is made uniform in the vertical and horizontal directions of the air supply chamber 6, and the air is discharged. In addition, since the air supply chamber 6 is inclined, the internal pressure of the air supply chamber 6 becomes uneven due to the chimney effect, with the lower part being higher when cooling air is supplied and the upper part being higher when heating air is being supplied. In order to prevent this, it is necessary to increase the internal pressure of the air supply chamber 6 until it reaches an appropriate value so that there is no change in internal pressure between the upper and lower parts.

Therefore, the air outlet 8 on the audience seat floor 2 is connected to the air supply chamber 6.
In a town performance, the internal pressure should be raised to an appropriate value, so that the blowing wind speed does not become excessive, and the airflow distribution around the audience seats is maintained appropriately, so that the minimum necessary amount of air is blown to each audience seat. regulate.

FIG. 5 shows the most preferred embodiment of the air outlet that satisfies the above conditions.

A vibrator 20 is inserted obliquely upward from an air supply chamber 6 into an air outlet 8 of a stepped member 3 of a spectator seat floor 2, so that the open end surface on the spectator seat 4 side faces a backrest 4a of the spectator seat 4. An orifice 21 is provided on the end face of the vibrator 20 on the side of the air supply chamber 6 to reduce the opening area. In this way, the air supplied to the air supply chamber 6 is raised to a predetermined appropriate pressure by the orifice 21 of the vibrator 20 and
0, and the air is blown out uniformly from the pipe 20 to the backrest 4a of the audience seat 4 at an appropriate wind speed with the minimum amount of air required.

The air blown onto the backrest 4a is diffused from the top of the backrest 4a due to the so-called Coander effect and distributed around the audience seats 4, so air for heating and cooling is blown at the feet of the audience 5. It can eliminate the discomfort caused by. In this example, the vibe 20
are provided for each tier of audience seat floors 2, but vibrators 20 may be provided for every several tiers, and the arrangement of the vibrators on the 1st tier of audience seat floors does not necessarily need to be provided for each audience seat. ,
They may be provided at appropriate intervals between several seats.

FIGS. 6 to 8 show other embodiments of air outlets in the audience floor. In the embodiment shown in FIG. 6, a perforated plate 24 is attached to an opening 3a provided in a step member 3 of the audience seat floor 2 to serve as an air outlet.

The opening area of the holes in the perforated plate 24 is appropriately selected to increase the internal pressure of the air supply chamber 6, and to regulate the initial velocity of the blown air flow to an appropriate level so as not to cause discomfort. Figure 7 shows
The step members 3a and 3b of the upper audience seat floor 2a and the lower audience seat floor 2b are arranged to face each other, and the upper end surface of the step member 3b of the lower audience seat floor 2b is aligned with the lower surface of the upper audience seat floor 2a. They are brought close to each other, and a bent air passage is formed as an air outlet 8 between the lower end surface of the step member 3a of the upper audience seat floor 2a and the upper surface of the lower audience seat floor 2b.

In FIG. 8, the upper end surface of the step member 3b of the lower audience seat floor 2b is inserted into the recess 7 provided on the lower surface of the upper audience seat floor 2a in close proximity to each other, and the bending is performed in the same way as in the embodiment of FIG. 7. It forms an air passage.

As described above, this invention forms an air supply chamber between the floor slab and the stepped audience seats, supplies air at a predetermined pressure to the air supply chamber, and provides the air supply chamber in the step member of the audience seat floor. The air outlet is configured to blow air around the audience seats.

Therefore, according to the present invention, only the area around the stepped audience seats can be cooled and heated using the minimum amount of air required, which improves air conditioning efficiency and saves air conditioning energy, especially in large buildings. It is possible to obtain an air conditioner with great energy savings and excellent energy saving effects.

In addition, this invention has a double floor slab structure that forms an air supply chamber between the audience seat floor and the floor slab, and supplies uniformly pressured air to the air supply chamber via an air pressure adjustment box. An appropriately structured air outlet is provided in the step member of the floor, so that the internal pressure of the air supply chamber can be increased.

Therefore, an equal amount of air can be supplied to each audience seat without changing the internal pressure in the upper and lower parts of the air supply chamber, so that the living area of all spectators can be supplied regardless of the location of the audience seats. This makes it possible to create a comfortable environment. Also,
According to this invention, cooling and heating air supplied to the air supply chamber between the double floor slabs causes cooling radiation from the surface of the audience seating floor in the summer and warm radiation in the winter, so the air outlet In addition to the cooling and heating effect caused by the airflow blown from the
The comfort level provided to the audience will further increase.

Furthermore, the air conditioner of this invention is easy and safe because the work is done at a low location in the building, and it is economical because the duct can be shortened and the static pressure of the fan of the air conditioner can be reduced. This provides the effect of enabling air conditioning.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the double floor slab structure of the present invention, Fig. 2 is a system diagram of an air conditioning system of the invention, Fig. 3 is a sectional view showing a duct outlet, and Fig. 4 is a plan view of the air pressure adjustment box, FIG. 5 is a sectional view showing an embodiment of the air outlet for the audience seats, and FIGS. 6 to 8 are respectively other embodiments of the air outlet for the audience seats. FIG. In the figure, 1 is the floor slab, 2 is the floor of the audience seats, 3 is the stepped member of the floor of the audience seats, 4 is the audience seats, 4a is the backrest of the audience seats, 6 is the air supply chamber, 8 is the air outlet, 10 is the air conditioner 12 is a duct, 13 and 14 are branch ducts, 16 is an air pressure adjustment box, 2
0 is a vibrator, and 21 is an orifice on the end face of the vibrator.

Claims (1)

[Scope of Claims] 1. An air supply chamber is formed between a floor slab and a stepped audience seat floor provided above the floor slab, and a duct extending from an air conditioner is connected to the floor slab. An air conditioner for a building equipped with stepped spectator seats, characterized in that an air pressure adjustment box is provided at the outlet, and the air outlet is opened in a stepped member of the floor of the audience seats. 2. The stepped structure according to claim 1, wherein a pipe with an orifice provided on the end face on the air supply chamber side is inserted into the air outlet of the stepped member of the audience seat floor, facing the backrest of the audience seat. Air conditioning equipment for buildings with spectator seats.