JPH0150821B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an air conditioning system for a room such as a room where indoor air needs to be directly exhausted.

[Prior art]

Conventionally, this type of air conditioning system has been a system as shown in FIG. In the figure, 1 is an air-conditioning room, 2 is a cooking table in the kitchen, and 3 is an exhaust fan that exhausts oil smoke generated at the cooking table to the outside.
Reference numeral 4 indicates an intake port for sucking air from outside the room, 5 indicates an indoor ceiling, 6 indicates an air-conditioner installed in the ceiling and cools or heats the room, 7 indicates an intake port for sucking indoor air, and 8 indicates an intake port 7. A suction duct connects the air conditioner/heater, 9 is an outlet for blowing out cold air or warm air from the air conditioner/heater 6, and 10 is an outlet duct connecting the air conditioner/heater 6 to the air outlet 9. In such a system, oil smoke generated on the cooking table 2 is removed by an exhaust fan 3.
In this system, outside air is introduced through an intake port 4, and the air conditioning load of the introduced outside air and the indoor heating and cooling load are processed by an air conditioner 6. Although this system is very simple, it has the disadvantage that the temperature distribution within the room 1 is uneven because the outside air is directly sucked into the room 1. In other words,
In the summer, there is a drawback that the indoor temperature around the air intake port 4 becomes extremely high.

In order to compensate for these drawbacks, an air conditioning system as shown in FIG. 2 was often adopted.
In FIG. 2, reference numeral 11 denotes an outside air air conditioner/heater that cools or heats the outside air sucked in through the intake port 4, 12 an outlet that blows out cold and hot air cooled and heated by the outside air air conditioner 11 into the room, and 13 an outside air air conditioner/heater 11. This is a duct that connects the air outlet 12. In such a system, the outside air sucked in through the intake port 4 is converted into cold and hot air by the outside air conditioner 11, so the outside air cannot be taken directly into the room 1, but it has the following drawbacks. In other words, two types of air conditioners, the air conditioner 6 and the outside air air conditioner 11, are required. In addition, the air conditioner 6 and the outside air air conditioner 11 are normally operated and stopped at the temperature of the room 1 or the temperature of the air outlet 12 detected by a thermostat (not shown). When it stopped,
Similar to the system shown in FIG. 1, this system had the disadvantage that the temperature inside the room was uneven because it was directly introduced into the room.

In the conventional air conditioning system shown in FIGS. 1 and 2, the indoor temperature distribution is uneven. Another disadvantage is that two types of air conditioners, the air conditioner 6 for heating and cooling the room and the outside air air conditioner 11 for heating and cooling the introduced outside air, are required.

[Summary of the invention]

The present invention proposes a system that eliminates the drawbacks of conventional air conditioning systems as described above by combining an exhaust device that discharges undesirable substances such as oil smoke, an air conditioner, and a total heat exchange device.

[Embodiments of the invention]

FIG. 3 shows an embodiment of the present invention. In the same figure, 14 is a heat exchange unit that will be described in detail later, 15 is an inlet that sucks indoor air, 16 is a duct that connects the inlet 15 and the heat exchange unit, 17 is a duct that draws air from the inlet 15, and a duct 16 that connects the heat exchange unit. The air outlet 18 is a duct that connects the air outlet 17 and the heat exchange unit 14 to blow out the air that has passed through the air outlet 14 . The heat exchange unit 14 has a configuration as shown in FIG. 4, where 19 is a total heat exchanger that mutually exchanges heat between air in different flow paths, and 20 is a total heat exchanger that sucks outside air from the intake port 4 and passes it through the heat exchanger 19. An outside air fan 21 blows air to the air outlet 12, which draws indoor air from the air inlet 15 and passes it through the heat exchanger 19 to the air outlet 17.
This is a circulation fan that blows air into the air.

In such a configuration, indoor air is supplied to suction port 1.
5, duct 16, heat exchanger 19, circulation fan 2
1, the outside air is circulated through the path of the duct 18, the outlet 17, and the room 1, and the outside air is blown into the room through the path of the intake port 4, the heat exchanger 19, the outside air fan 20, the duct 13, and the outlet 12. Therefore, since the indoor air and the outdoor air exchange heat in the heat exchanger 19, the temperature blown out from the air outlet 12 is quite close to room temperature. This temperature is expressed by the following formula and is generally about 70% as a heat exchange efficiency.

Outlet temperature of outlet 12 = (outside air temperature - indoor temperature) x
(100 - heat exchange efficiency) / 100 + room temperature The same amount of air as the amount of outside air taken in from the intake port 4 is exhausted by the exhaust fan 3, and the oil smoke generated on the cooking table 2 is also exhausted at the same time. This prevents water from entering the room 1.

By configuring as described above, not only does the outside air air conditioner 11 become unnecessary, but also the outside air taken in from the intake port exchanges heat with indoor air in the heat exchange unit 14 and is blown out from the outlet 12, so that Figures 1 and 2 show that the temperature distribution of
This greatly improves the drawbacks of the conventional air conditioning system shown in the figure.

Furthermore, in one embodiment of the present invention shown in FIG. 3, the air blown out from the outlet 17 exchanges heat with the introduced outside air, so the temperature is high in summer and low in winter. If it is provided at a position closest to the exhaust fan 3 than the suction port 7, air outlet 9, air outlet 12, and suction port 15, or at a position where it is most easily discharged by the exhaust fan 3, the temperature in the room 1 is further made uniform. Is possible.

〔Effect of the invention〕

As described above, in this invention, an air conditioning system is configured by combining an exhaust device that discharges undesirable substances such as oil smoke, an air conditioner, and a total heat exchange device, so a system with uniform temperature distribution is obtained, and comfortable air conditioning is achieved. can be realized.

[Brief explanation of drawings]

Figures 1 and 2 are diagrams of a conventional air conditioning system in a room that exhausts indoor air containing undesirable substances such as oil smoke from a room, and Figure 3 is an air conditioning system showing an embodiment of the air conditioning system of the present invention. The system diagram, FIG. 4, is a structural diagram of the total heat exchange unit which is the essential part of the present invention. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. In the figure, 1 is indoor, 3 is exhaust fan, 4 is air intake, 6 is air conditioner, 7 is air inlet, 9 is air outlet, 1
4 is a total heat exchange unit, 15 is a suction port, and 18 is a duct.

Claims (1)

[Claims] 1. In an indoor air conditioning system that generates undesirable substances such as oil smoke, odor, and harmful gases, an exhaust device that discharges the undesirable substances to the outside;
An air conditioner that sucks in the indoor air, heats or cools it, and blows it out into the room; a total heat exchange device that exchanges heat between the indoor air and the freshly introduced outside air; and an indoor air after heat exchange with the total heat exchange device. An air conditioning system comprising: an indoor air supply path for supplying fresh air into the room; and a fresh outside air supply path for supplying fresh outside air after heat exchange with the total heat exchanger into the room. 2. The air conditioning system according to claim 1, characterized in that the outlet of the indoor air supply path that supplies indoor air after heat exchange with the heat exchange device into the room is located close to the exhaust device.