JPH083368B2 - Air conditioning equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner, and more specifically to an air conditioner for an interior after external air required for personnel in an interior zone is passed through an outside conditioner and a perimeter zone. The present invention relates to an air-conditioning facility to be supplied.

[Conventional technology]

In the so-called perimeter zone, which is within about 3 to 6 m from the windows and walls inside the building, it is susceptible to solar radiation and the temperature of the outside air, so the heat load fluctuates extremely throughout the day. On the other hand, in the so-called interior zone in the central part of the building, the influence of solar radiation and the outside air temperature is small, so the fluctuation of the heat load is relatively stable. If the zones having different heat load fluctuation rates are collectively controlled by a single air conditioner as described above, it is not possible to finely respond to each cooling and heating load, resulting in temperature unevenness.

Therefore, in order to eliminate the above-mentioned inconvenience, it is necessary to separately control the perimeter zone and the interior zone separately without air-conditioning the inside of the building collectively. As a method for that, apart from the air conditioner for the interior zone,
There is a method in which a fan coil unit that compactly integrates a small fan and a hot / cold water coil is installed in the perimeter zone and cold / hot air is supplied to the perimeter zone. With this method, fine air conditioning can be performed according to the heat load in the perimeter zone by switching between cold / hot water and adjusting the strength of the fan.

However, the fan coil unit method has the following drawbacks.

Multiple and large-scale piping equipment is required to supply cold / hot water to the hot / cold water coil, and the space for it is also enormous. There is a risk of water leakage accident. Noise is generated by installing a terminal with a fan inside the room. Occurs, the space for installing the terminal becomes large, the mixing loss with the air in the interior zone is large, and especially when the warm air is supplied to the perimeter zone, it is necessary to cool the interior zone due to internal heat generation. Warm air is supplied and the load on the interior zone is increased. A large number of terminals are installed, which makes maintenance and inspection of each terminal troublesome. In winter, the inside of the building becomes hot and humid compared to the outside air. Therefore, dew condensation is likely to occur on the window surface.

Therefore, in order to eliminate the above drawbacks of the fan coil unit method, a method has been introduced in which an air conditioner dedicated to the perimeter zone is installed outside the room and conditioned air is supplied to each perimeter zone via a duct.

[Problems to be Solved by the Invention]

This method of separately installing an air conditioner dedicated to the perimeter zone solves most of the above drawbacks, but has not solved the dew condensation on the window surface in winter. Therefore, an object of the present invention is to provide an air conditioner capable of effectively eliminating dew condensation on the window surface in winter.

[Means for solving the problem]

In order to achieve the above object, an air conditioner according to the present invention includes an interior air conditioner for performing air conditioning in an interior zone, an outside air intake path for taking in outside air of the interior air conditioner, and In an air conditioner equipped with an exhaust path for exhausting exhaust air from the interior zone to the outside of the zone, an external air conditioner equipped with an air heater and an air cooler was inserted into the external air intake path and passed through this external air conditioner. The air path is once blown into the perimeter zone, and then a path for taking in the interior air conditioner is formed.

〔Example〕

Embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is a simplified diagram for explaining the embodiment of the present invention, and FIG. 2 is a simplified sectional view thereof. As shown in the figure, the air conditioning equipment according to the present application has an outside air conditioner 10 (hereinafter referred to as “perimeter outside air conditioner 10”) for processing outside air and an interior air conditioner 12. The perimeter external air conditioner 10 is equipped with a blower fan 14, an air heater 16, an air cooler 18 and a filter 20. On the other hand, the interior air conditioner 12 includes a fan 22, a humidifier 24, a heating coil 26,
Equipped with a cooling coil 28 and a filter 30. These perimeter external air conditioners and interior air conditioners may of course be installed in each room, but it is more economical to install them in each building or on each floor of the building and connect them to each room via ducts. Yes,
Also, the installation space can be saved.

Chamber in ceiling space 31 of the perimeter zone
32 is fixed to a ceiling plate 34, and a slit-shaped outlet 36 is formed in the chamber 32 along the window (second
Figure). The chamber 32 is connected to an air supply port 40 of the perimeter external regulator via an air supply duct 38. A peri-counter 44 is installed on the floor plate 46 below the window 42, and a slit-like suction port 48 is formed on the upper surface of the peri-counter 44 along the window. A cavity 50 in the peri-counter 44 is connected to the suction port 48. And, such a cavity 50 is an underfloor 52
It is connected to the outside air connection port 55 of the interior air conditioner 12 via a duct 54 arranged inside. Air conditioners for interior 12
An air supply duct 58 extends from the air supply port 56 to supply air to an air outlet 60 installed in the ceiling plate 34 in the upper part of the interior zone.

Intake points for return air 62,7 at appropriate positions in the interior zone
6 are installed, and these are connected to the return air intake 80 of the interior air conditioner 12 via the return air ducts 64, 78. At that time, a duct communicating from the return air duct 64 to the return air inlet 66 of the perimeter air conditioner 10 is provided so that a part of the return air can be appropriately taken into the perimeter air conditioner 10, and a motor damper 68 is provided in this duct. is set up. Further, an exhaust duct 82 is provided branching from the middle of the return air duct, and an exhaust fan 84 is interposed in the middle thereof. The exhaust duct 82 is connected to an exhaust gallery (not shown).

At the outside air connection port 70 of the perimeter air conditioner 10, an outside air duct 72 is provided.
Are connected, and the tip of the outside air duct 72 is connected to the outside air suction gallery 74.

Then, the outside air is taken in from the outside air suction gallery 74 by driving the fan 14 of the perimeter external regulator 10, and after the required heating treatment or cooling treatment in the perimeter external regulator 10 is passed through the air supply duct 38. Air is sent to the chamber 32 and is discharged from the slit-shaped outlet 36 toward the perimeter zone. This air drops along the inner surface of the window due to the Coanda effect, and is sucked into the slit-shaped suction port 48 on the peri-counter 44 by driving the fan 22 of the interior air conditioner 12. The sucked air is directly supplied to the interior air conditioner 12 through the duct 54. Here, from the return air suction ports 62,76 through the return air duct, the interior air conditioner 1
After being mixed with the return air from the interior zone returned to the inside of 2, and cooled or heated and humidified according to the heat load and humidity of the interior zone, the air is supplied to the interior zone from the outlet 60. A part of the return air from the interior zone is discharged to the outside of the system by driving the exhaust fan 84 of the exhaust duct 82. This realizes ventilation in the system.

Next, the operating procedure of the embodiment of the present invention having the above configuration will be described below.

First, in the winter when the outside air temperature and humidity are low, the amount of outside air required for personnel is taken into the perimeter outside air conditioner 10, and the outside air is heated to a temperature lower than the room temperature of the interior zone by the air heater 16 of the perimeter outside air conditioner. It blows out to the perimeter zone later. In this case, one feature is that the outside air is not humidified and is blown out to the perimeter zone while maintaining the outdoor humidity. As a result, the outside air falling along the inner surface of the window as a wall surface flow is cooled on the way, but does not condense due to its low absolute humidity (same as the outside air humidity). Further, since the air blown to the perimeter zone is heated to a temperature lower than the room temperature of the interior zone, it can be blown in a film form from the slit-shaped outlet 36 and then fall naturally along the window surface. . Furthermore, as described above, this air flow forms a wall surface flow by the Coanda effect and drops with a constant force, so that the mixing with the air in the interior zone can be minimized, and as a result, the interior zone Does not disturb the air conditioning environment. This effect is obtained by the outlet 36 and the inlet 48.
It can be further increased by appropriately adjusting the installation position (distance from the window surface), the slit width of the suction port 48, and the like. Incidentally, according to the experiments by the inventors, it is almost satisfactory when the distance from the window surface of the outlet 36 is set to 150 mm, that of the suction port 48 is set to 250 mm, and the slit width of the suction port is set to 3 to 5 mm. Results were obtained. In addition, since the outside air cooled in the process of passing through the perimeter zone will be supplied to the interior air conditioner, if it is necessary to cool the interior zone even in winter due to the situation that many machines and personnel are allocated. In addition, the cooling load can be reduced.

Next, in the summer when the outside air temperature rises, the amount of outside air required for sensible heat treatment in the perimeter zone increases and exceeds the amount of outside air required for personnel in the interior zone.
The motor damper 68 is opened to return a part of the return air from the interior zone to the inside of the perimeter external regulator 10. As a result, the amount of outside air to be taken in can be reduced, and as a result, the energy for cooling the outside air can be saved.

During periods other than winter (that is, summer and intermediate periods), the outside air taken in is cooled by the air cooler of the perimeter external air conditioner.
After being cooled and dehumidified by
Since the air is supplied to the interior air conditioner 12 as it is, a comfortable indoor environment can be realized without increasing the indoor temperature, and it is particularly effective in a period when the humidity is high such as in the rainy season.

By using a fan having an inverter control function in the perimeter external air conditioner 10, it is possible to stably and efficiently blow air according to the required amount of outside air.

As described above, according to the present invention, it is possible to effectively prevent dew condensation on the window surface in winter. Further, in the summer and the interim period, since the outside air cooled and dehumidified by the perimeter air conditioner is supplied to the interior air conditioner, the humidity in the interior zone can be kept comfortable without dehumidifying the interior air conditioner. . Furthermore, it is possible to minimize the mixing loss between the air in the perimeter zone and the air in the interior zone.

[Brief description of drawings]

FIG. 1 is a simplified explanatory diagram showing an embodiment of the present invention.
The figure is a simplified view of the cross section. Explanation of code 10 …… Perimeter external air conditioner 12 …… Interior air conditioner 16 …… Air heater 18 …… Air cooler 36 …… Slit-shaped outlet 42 …… Window 48 …… Slit-shaped inlet

Front page continuation (72) Inventor Tetsuji Iseki 2-19-1 Nakahara-cho, Kawagoe-shi, Saitama 1315 Kawagoe Park Fumilia 1315 (72) Inventor Yasushi Uemura 1-8-2-302 (72) Invention, Kamiishakujii, Nerima-ku, Tokyo Person Makoto Morimura 1-2-22-2-48 Nagatsuda, Midori-ku, Yokohama-shi, Kanagawa Prefecture (72) Masanobu Iwasaki 3-3-10-101 Sakurada, Washinomiya-cho, Kitakatsushika-gun, Saitama Inventor Shinsuke Kusano Yutaka Kashiwa-shi, Chiba Prefecture Town 1-1-10 Pier Garden 1015

Claims (6)

[Claims] 1. An interior air conditioner for air-conditioning an interior zone, an outside air intake path for introducing outside air into the interior air conditioner, and an exhaust path for exhausting exhaust air from the interior zone to the outside of the zone. In an air conditioner equipped with, an external air conditioner equipped with an air heater and an air cooler is inserted into the outside air intake path, the air passing through the outside air conditioner is once blown into the perimeter zone, and then the interior Air-conditioning equipment characterized by forming a path to be taken into the air conditioner. 2. The air that has passed through the external air conditioner is blown out as a wall surface flow along the inner surface of the window from a slit-shaped air outlet arranged along the window upper frame of the perimeter, and the air blown out opposes the air outlet. The air conditioning equipment according to claim 1, wherein after being sucked into a slit-shaped suction port arranged under the window, it is taken into the interior air conditioner through a duct. 3. The air heater of the air conditioner is operated in winter, and the outside air is heated to a temperature lower than room temperature by the air heater while maintaining its humidity and then blown out to the perimeter zone. Air conditioning equipment described. 4. The air conditioning equipment according to claim 1, wherein the air cooler of the external conditioner is operated in the summer and the middle season, and the air cooled and dehumidified by the air cooler is blown to the perimeter zone. 5. A return air duct having an opening / closing means for taking in return air from the interior zone is connected to the external air conditioner,
The air conditioning equipment according to claim 1 or 2, wherein the return air duct is opened in the summer. 6. The interior air conditioner has a humidifier, and the air supplied through the perimeter zone is humidified in the humidifier and then blown out to the interior zone. Air conditioning equipment.