JPS633135A - Air conditioner with ventilation - Google Patents

Abstract

PURPOSE:To prevent diffusions to respective rooms of odor and smoke and the sticking of odor on to the inside of an air supply dust by heating or cooling the return air as it is by operating a damper when it is led to a heating or cooling section, and discharging it after it has exchanged heat with the introduced outdoor air when it is led to a ventilation section and supplying the introduced outdoor air to respective rooms after heating or cooling it. CONSTITUTION:When the air in a room is not polluted, the indoor return air is led to a fan 3 for air blast after being led to an air conditioner 1 with ventilation, and accelerated, heated or cooled by a cold and hot water coil 4 and discharged to respective rooms to carry out room heating or room cooling, when a damper 9 is left closed. When the air in a room is polluted or the odor of tobacco or the smoke from smoking is in the air, the return air from the room that was sucked in is led to a fan 6 for air exhaust after being led to the air conditioner 1 with ventilation, and discharged to the outdoor after passing through a total heat exchanger 8, when the damper 9 is open. At the same time the outdoor air is introduced by a fan for air supply and it passes through the total heat exchanger 8 and after exchanging heat with the indoor ventilated air it is led to a fan 3 for blast air and heated or cooled by a cold or hot water coil 4 and discharged to respective rooms via an air supply duct 11 to carry out room heating or room cooling by fresh air.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ventilation air conditioning system for heating and cooling or ventilation and heating of a building.

BACKGROUND OF THE INVENTION The conventional heating and cooling method is to install an air conditioner 101 as shown in Figure 4, and send hot or cold air to each room through an air supply duct 1o2 as shown in Figure 5. The return air is returned to the air conditioner 101 via the return air duct 103. The air returned to the air conditioner 101 is driven by a motor 104 7
After being accelerated by the 7-channel 105 and heated or cooled by the cold/hot water coil 106, the air passes through the air supply duct 1o2 again and is sent to each room.

(For example, regarding heating and cooling methods, see (Taste) Air Conditioning and Sanitary Engineering "Practical Knowledge of Air Conditioning Equipment" (revised 2nd edition), P. 1681. Problems to be solved by the invention. With this method, it was not possible to exhaust the contaminated air generated inside the room, and it was necessary to install a separate ventilation system for ventilation.However, simply providing ventilation would lead to an increase in the heating and cooling load. Also, there is-
The smell of cigarettes and smoke generated in the room spread to each room, sometimes causing discomfort. Moreover, the smell of cigarettes and the like will get stuck inside the air supply duct 102 and over time.
However, there were problems such as increased discomfort as the temperature increased.

The present invention solves the above-mentioned conventional problems, and allows the contaminated air generated indoors to be discharged at any time and at any time, while also preventing an increase in the heating and cooling load. It is an object of the present invention to provide a ventilation air conditioner that can prevent odor from spreading and also prevent odor from penetrating into the air supply ducts to each room.

Means for Solving the Problems In order to achieve the above object, the ventilation air conditioning system of the present invention has the following features:
Inside the device, there is a heating and cooling part that has a blower fan motor and a cold/hot water coil for heating and cooling, and a ventilation part that has a fan motor for ventilation and a total heat exchanger for exchanging heat between the exhaust air and the introduced outside air. and a damper for guiding indoor return air to any one of the heating and cooling section and the ventilation section, and when the indoor return air is guided to the heating and cooling section by operating the damper, it is heated or cooled as it is. When the air is introduced into a ventilation section, the air is discharged after exchanging heat with the introduced outside air, and the introduced outside air is heated or cooled before being supplied to each room.

Effect: With this configuration, if the indoor air is not contaminated, if the damper is closed, the air will not flow to the ventilation area, but will be guided to the heating and cooling area, and will pass through the fan motor for blowing air. After being heated or cooled by a cold/hot water coil, it is supplied to each room for heating or cooling. In addition, if the indoor air is dirty or there is a smell of cigarettes or smoke, by operating the damper and opening it, the indoor air will be guided to the ventilation part, and the exhaust fan of the ventilation fan motor will be activated. It is pressurized and discharged outdoors through a total heat exchanger. At the same time, outside air is sucked in by the air supply fan of the ventilation fan motor, exchanges heat with the indoor ambient air in the total heat exchanger, is led to the heating and cooling section, passes through the ventilation fan motor, and then passes through the cold/hot water coil. It is heated or cooled and supplied to each room for heating or cooling and ventilation.

In this way, heating and cooling or ventilation and heating and cooling are performed.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3. In the figure, reference numeral 1 denotes a ventilation air conditioner, which has a ventilation fan 3 driven by a ventilation motor 2 and a cold/hot water coil 4 for heating or cooling the air discharged from the ventilation fan 3. A cooling part, an exhaust fan 6 and an air supply fan 7 driven by a ventilation motor 5, and air discharged outdoors by the exhaust fan 6 and an air supply fan 7.
In addition to incorporating a ventilation section with a total heat exchanger 8 for heat exchange between the air supplied from outside 7), the return air from indoors is guided to the cooling and heating section, or the ventilation section is It has a built-in damper 9 for arbitrarily switching the direction to the part at any time.

1o is a driving part of the damper 9. In addition, 11 is an air supply duct, the negative end is connected to the ventilation air conditioner 1, and is for sending hot or cold air to each room, and discharge grills 12a to 12f can be attached to the tip on the side of each room. be. 13
is a return air duct, the - end is connected to the ventilation air conditioner 1, and is for guiding the return air from each room to the ventilation air conditioner 1, and the tip on the side of each room has suction grills 14a to 1af. It has 9 mounting holes. 1S and 16 are outdoor hoods for taking outdoor exhaust and outdoor air supply from the ventilation air conditioner 1.

In the above configuration, when the air in the room is not contaminated, if the damper 9 is closed by the drive unit 1Q as shown in FIG. Ventilation air conditioner 1 by air duct 13
After being guided to the air blower 77 driven by the air blower motor 2, it is accelerated, heated or cooled by the hot and cold water coil 4, passes through the air supply duct 11, and is discharged to the discharge grills 12a to 12f. It is discharged into each room to provide heating or cooling.

In addition, when the air in the room is dirty or there is a smell of cigarettes or smoke, when the damper 9 is opened by the drive unit 1o, as shown in FIG.
The indoor return air sucked in by a to 14f is sent to the return air duct 1.
3 to the ventilation air conditioner 1 , the air is led to the exhaust fan 6 driven by the ventilation motor 5 , passes through the total heat exchanger 8 , and then is discharged outdoors through the outdoor hood 15 .

At the same time, outside air is led from the outdoor hood 16 by the air supply fan 7 driven by the ventilation motor 5, passes through the total heat exchanger 8, exchanges heat with the indoor ambient air, and then is driven by the ventilation motor 2. The air is guided by a driven blower fan 3, heated or cooled by a cold/hot water coil 4, passes through an air supply duct 11, and is discharged into each room by discharge grills 12a to 121, thereby removing contaminated air and fresh air. Air-based heating and cooling are provided.

Therefore, if the air in the room is not contaminated, heating or cooling can be performed efficiently without heat loss, and if the air in the room is dirty, it can be exhausted while exchanging heat with fresh outside air. In addition to suppressing heat loss, the air is then heated or cooled in the same manner as described above and sent to each room, so there is no diffusion of cigarette odor or smoke, and there is no possibility that unpleasant odors may stain inside the air supply duct. , without increasing discomfort.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, it is possible to reduce the heating and cooling load, and the smell of cigarettes and smoke generated in a certain room is diffused to each room, causing discomfort. can be prevented from giving.

It also has the effect of preventing unpleasant odors from settling inside the air supply duct over many years.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a case where the damper of a ventilation air conditioner according to an embodiment of the present invention is closed, Fig. 2 is a sectional view showing the case when the damper is open, and Fig. 3 is a sectional view showing the construction of the ventilation air conditioner. 4 is a sectional view of a conventional air conditioner, and FIG. 5 is a sectional view of the same air conditioner after construction. 1...Ventilation air conditioner, 2...Blower motor, 3...Blower fan, 4...Cold/hot water coil, 5...Ventilation motor, e...exhaust fan, 7...air supply fan, 8-...total heat exchanger, 9...damper. Name of agent: Patent attorney Toshio Nakao and 1 other person f~
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Claims (1)

[Claims] Inside the device, there is a heating and cooling part that includes a fan motor for blowing air and a cold/hot water coil for heating and cooling, and ventilation that has a fan motor for ventilation and a total heat exchanger for exchanging heat between the exhaust air and the introduced outside air. and a damper for guiding indoor return air to any one of the heating and cooling section and the ventilation section, and when the indoor return air is guided to the heating and cooling section by operating the damper, it is directly heated. Or cool it and supply it to each room, and if indoor return air is led to the ventilation part by operating the damper, it is discharged after exchanging heat with the introduced outside air, and the introduced outside air is heated or cooled, and then A ventilation air conditioning system configured to supply air to each room.