JP2799384B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system including two systems, an overhead system that supplies air conditioning air from a ceiling and a down blow system that supplies air conditioning air from under the floor.

[Prior art] In recent years, various types of OA equipment,
In consideration of the heat load on the information and communication equipment and the human environment, there is a demand for a system for supplying air conditioning air and a system that can flexibly cope with the heat load. For this purpose, conventionally, an air conditioning system including two systems, an overhead system that supplies air-conditioning air from a ceiling and a down blow system that supplies air-conditioning air from under the floor, is known.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional system, two separate air conditioners are provided for the overhead system and the down blow system, respectively, so that an installation space is required correspondingly. In addition, there is a problem that the number of OA devices is increased and the layout is restricted.

The present invention solves the above-mentioned problems, and enables air conditioning of two systems, an overhead system and a down blow system, with one air conditioner, and is capable of freely responding to an increase in OA equipment and a change in layout. The purpose is to provide.

[Means for Solving the Problems] For that purpose, the air conditioning system of the present invention uses a total heat exchange between the overhead system device A and the down blow system device B having a cooling, heating or humidifying function, and the outside air and the exhaust air. The exchanger C is composed of a unit, supplies air conditioned by the overhead device A from the ceiling of the room D, and supplies air conditioned by the down blow device B from the floor of the room D. It is characterized by the following.

The numbers added to the above configuration are for comparison with the drawings for easy understanding, and do not limit the configuration of the present invention at all.

[Operation] In the present invention, for example, as shown in FIG. 1, the outside air sucked from the duct 13 by the blower fan 6a is supplied to the chamber D
Mixed with part of the return air 15
, Is cooled or heated, humidified, and supplied into the room D from the outlet 11 on the ceiling of the room D. Similarly, a part of the return air 15 from the chamber D is supplied from the air volume adjusting damper 8 to the down blow system B, and cooled or heated and humidified. Supplied to

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
FIG. 1 is a system diagram showing one embodiment of an air conditioning system of the present invention, FIG. 2 is a side view showing one embodiment of an air conditioner according to the present invention, and FIG. 3 is a plan view of FIG.

In FIG. 1, the air conditioner 1 has an overhead system A, a down blow system B, and a total heat exchanger C. Overhead system A, down blow system B
Includes filters 2a and 2b, cold water coils 3a and 3b, hot water coils (or cold and hot water coils) 4a and 4b, humidifiers 5a and 5b, respectively.
Blowers 6a and 6b are provided. Further, an exhaust fan 7 and dampers 8 and 9 for adjusting the air volume are provided. The cold water coils 3a, 3b, hot water coil (or cold / hot water coil) 4
a and 4b are connected to a cold heat source and a hot heat source such as a refrigerator, a heat pump or a boiler (not shown).

The overhead device A is connected to an outlet 11 provided on the ceiling of the room D via a variable air volume adjusting device 10, and the down blow device B is supplied to an outlet 12 provided on the floor of the room D. I care. The outlet 12 is configured so that the amount of the blown air can be freely adjusted. The outlets 11 and 12 are provided in large numbers.

Note that the present invention is not limited to the above embodiment, and various modifications are possible.

For example, in the above embodiment, the air is circulated in the order of the overhead system A, the chamber D, and the down blow system B, but the air may be circulated in the reverse order,
Air may be circulated from the overhead device A and the down blow device B to the chamber D in parallel. Also,
The cold water coil, the hot water coil, and the cold / hot water coil can each be used alone, or can be systematically provided without a humidifier.

Explaining the operation of the air-conditioning system of the present invention having the above configuration, the outside air sucked from the duct 13 by the blower fan 6a is mixed with a part of the return air 15 from the chamber D by the damper 9 for air volume adjustment, and the overhead system The filter A, the cold water coil 3a, the hot water coil (or cold / hot water coil) 4a, and the humidifier 5a of the apparatus A are cooled, heated, or humidified, and supplied into the room D from the outlet 11 on the ceiling of the room D. Similarly, the outside air sucked from the duct 13 is mixed with a part of the return air 15 from the room D passing through the duct 15 or the ceiling chamber by the air volume adjusting damper 8 and supplied to the down blow system device B, A part of the remaining air is supplied from the air volume adjustment damper 9 to the overhead device A,
Further, the remaining air is exhausted through the total heat exchanger C and the exhaust fan 7.

The air supplied to the down blow system B is filtered
2b, cold water coil 3b, hot water coil (or cold / hot water coil) 4
b) In the humidifier 5b, the humidifier 5b is cooled or heated and humidified, and supplied into the chamber D from the outlet 12 on the floor of the chamber D. Room D
In, the variable air volume adjusting device 10 operates according to the room temperature, the supply amount of the air-conditioning air is adjusted, and the outlet
The air conditioning of the individual space can be adjusted by adjusting the air volume of the 12 outlets.

FIG. 2 is a side view showing one embodiment of the air conditioner 1, and FIG.
The figure is a plan view of FIG.

The air conditioner 1 is configured so that the eight divided boxes can be assembled as a unit, thereby facilitating loading and unloading.

That is, three boxes 21, 22, and 23 having an overhead filter 2a, a cold water coil 3a, a hot water coil (or cold and hot water coil) 4a, and a blower fan 6a, and a box 25 having an exhaust fan 7 and an outside air inlet 24. , A box having a return air inlet 26 and a total heat exchanger C, and a box having a return air inlet 28 and a damper 8 for air volume adjustment
29, filter 2b of down blow system device, chilled water coil 3
b, boxes 30 and 31 each having a hot water coil (or cold / hot water coil) 4b and a blower fan 6b.

[Effects of the Invention] As described above, according to the present invention, an overhead system device and a down blow system device having a cooling, heating or humidifying function, and a total heat exchanger for exchanging total heat between intake air and exhaust air are formed as a unit. And the air conditioned by the overhead system is supplied from the ceiling of the room, and the air conditioned by the down blow system is supplied from the floor of the room. Enables air conditioning of two systems, overhead system and down blow system,
It can respond freely to the increase in OA equipment and layout changes.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of an air conditioning system of the present invention, FIG. 2 is a side view showing one embodiment of an air conditioner according to the present invention, and FIG. 3 is a plan view of FIG. A: overhead system, B: down blow system, C: total heat exchanger, D: room.

Claims (1)

(57) [Claims] An overhead system and a down blow system having a cooling, heating or humidifying function, and a total heat exchanger for exchanging total heat between intake air and exhaust air are constituted by a unit, and air conditioning is performed by the overhead system. An air conditioning system, wherein the supplied air is supplied from the ceiling of the room, and the air conditioned by the down blow system device is supplied from the floor of the room.