JPH09324929A - Air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the air conditioning follow and suit variation of the load caused by disturbance so as to keep the thermal environment at the perimetric parts at all times comfortable by a method wherein an air conditioner is installed in the ceiling section, a return air hole is provided above a window, and a current of conditioned air is blown out toward the window in a line to effect heat exchange with the return air. SOLUTION: For a room formed above floor slabs 1 an air conditioner 7 is installed in the chamber above the ceiling 2, a plurality of anemostat type diffusers 5 and a plurality of return air holes 6 are provided at the ceiling 2 of the interior part I, and there are provided a breeze line outlet 11 at the ceiling 2 of the perimetric part P and a return air hole 12 at the side of or close to a blind box 4a. The air conditioner 7 is connected by ducts 9 to the anemostat type diffusers 5 and the breeze line outlet 11 in a setup to supply conditioned air to the room under control by a temperature sensor 10 and return the air to the air conditioner 7 through the return air holes 6, 12. As a result, there is no current of air reaching the living space when it happens that the load is large and the temperature of the air from the outlet is low and the occupant is given no uncomfortableness which is caused by a current of low temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an air conditioning system for air conditioning a building such as an office building.

[0002]

2. Description of the Related Art The outer peripheral part of a building (perimeter part) due to solar radiation
Has a great impact on the indoor environment, and various measures have been taken regarding the air conditioning system and control by sensors. FIG.
FIG. 6 is a diagram for explaining a conventional air conditioning system. In the figure,
1 is a floor slab, 2 is a ceiling, 3 is a window, 4 is a blind,
Reference numeral 5 is an anemo type outlet, 6 is a return air outlet, 7A and 7B are air conditioners, 8 is a chamber, 9 is a duct, and 10 is a temperature sensor. In the conventional air-conditioning system, the air conditioners 7 are arranged in the interior portion I and the perimeter portion P, respectively, and the interior I portion and the perimeter portion P are individually air-conditioned through the duct 9.

[0003]

However, in the above conventional air conditioning system, a dedicated air conditioner 7 is provided for each system.
Since A, 7B, the duct 9, the temperature sensor 10 and the like are required, the cost increases and the control becomes complicated. Further, if control is performed so that low-temperature air is supplied from the air conditioner 7B of the perimeter section P in order to handle the heat load generated in the window section 3 at the time of peak load, this low-temperature airflow will flow into the residential area of the perimeter section P, and There is a problem that it gives a person discomfort.

The present invention solves the above-mentioned problems of the prior art by reducing the cost and simplifying the control,
An object of the present invention is to provide an air-conditioning system that can keep the thermal environment of the perimeter unit comfortable at all times by following the fluctuation of the disturbance load.

[0005]

To this end, the air conditioning system of the present invention comprises an air conditioner installed near the ceiling, and air conditioned by the air conditioner is supplied to the interior part and perimeter part of the room by a duct. In the air-conditioning system for returning air, a return air port is provided at the upper part of the window portion, and line-conditioned air is blown toward the window portion for heat exchange with the return air.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an air conditioning system 1 according to the present invention.
It is a typical sectional view showing an embodiment. In the figure, 1 is a floor slab, 2 is a ceiling, 3 is a window part, 4 is a blind, 4a is a blind box, 5 is an anemo type outlet, 6 is a return air port, 7
Is a ceiling-embedded air conditioner, 8 is a chamber, 9 is a duct, 1
Reference numeral 0 is a temperature sensor, 11 is a breathing line outlet, and 12 is a return air outlet.

In FIG. 1, an air conditioner 7 is installed behind a ceiling 2 of a room formed between floor slabs 1. The ceiling 2 of the interior part I has a plurality of anemo-type air outlets 5 and return air outlets 6.
Is provided. Further, on the ceiling 2 of the perimeter portion P, the breeze line outlet 11 and the blind box 4 are provided.
A return air port 12 is provided on the side surface of a or in the vicinity of the blind box 4a.

The air conditioner 7 is connected to the anemo type air outlet 5 and the breeze line air outlet 11 via a duct 9, supplies air conditioned into the room under the control of the temperature sensor 10, and returns the air to the air outlet 6, 12. Is returned to the air conditioner 7. As a result of the experiment, it was found that all the heat flow generated from the window portion 3 warmed by the solar radiation in the summer could not be sucked from the return air outlet 12 and leaked to the inside to some extent. Therefore, a breeze line outlet 11 is provided, and air is blown out linearly toward the window portion 3 to process the heat load that could not be absorbed on the window portion 3, and when the load is large and the blowout temperature is low. However, since heat is exchanged in the portion A in the figure, the airflow does not reach the living area, and there is no discomfort caused by the low-temperature airflow. Further, when there is no load or when the load is small, it does not work as an air conditioner coil load in addition to the amount of air blown, and therefore does not require excessive energy.

According to the present invention, it is possible to follow changes in external disturbance such as solar radiation even if there is no control and a fixed amount of air is blown out. In addition, the temperature sensor is installed near the return port 6.
Since the thermal comfort of the perimeter P can be maintained only by providing the parts, the perimeter part P is excellent in low cost, energy saving, and comfort as compared with the conventional system in which complicated control is incorporated.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made. For example, in the above embodiment,
Although an example of a ceiling-embedded air conditioner is shown, it can be applied to a ceiling cassette type air conditioner by adopting a branch duct system or the like. In addition, a zoning plan is not required by changing the system of the present invention from a system in which an air conditioner is installed in the perimeter unit and a floor-mounted duct blow type air conditioner is used in the interior unit, or a system in which ducts are systematized by the central system. This makes it possible to build a system that is excellent in comfort and energy saving.

[0011]

As is apparent from the above description, according to the present invention, system division is not required, so that the number of air conditioners and the perimeter duct (for outside air intake) can be reduced, and the cost can be reduced. It is possible to reduce. In addition, the control becomes simple, which can contribute to low cost and work saving. Furthermore, it becomes possible to keep the thermal environment of the perimeter unit comfortable at all times by following changes in load due to disturbance.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of an air conditioning system of the present invention.

FIG. 2 is a schematic cross-sectional view for explaining a conventional air conditioning system.

[Explanation of symbols]

1 ... Floor slab, 2 ... Ceiling, 3 ... Window part, 5, 11 ... Air outlet, 6, 12 ... Return air port 7 ... Air conditioner, 9 ... Duct, 10 ... Temperature sensor I ... Interior part, P ... Perimeter part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayuki Akimoto 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation

Claims (1)

[Claims] 1. An air-conditioning system in which an air conditioner installed near a ceiling is provided, and air conditioned by the air conditioner is supplied to a room interior part and a perimeter part by a duct and returned to the upper part of a window. An air-conditioning system that has a mouth and blows air that has been conditioned in a line toward the window to exchange heat with the return air.