JP2000121142A - Underfloor air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize the floor area effectively by disposing an air handling unit in the space under free access floor while enabling local air conditioning for supplying conditioned air concentrically to a required place. SOLUTION: Partitions 13, 13 are provided additionally on the inside of the walls 12, 12 of a free access type room 10. An upper wall air inlet 15 and an air path 16 are provide between the walls 12, 12 and the partitions 13, 13 and the air supplied from the room 10 through the air path 16 to an air handling unit 18 disposed in the underfloor space 26 between the free access floor (upper floor) 20 and the lower floor 17 is passed through an air filter 21 for removing duct and subjected to dehumidification or temperature regulation through a dry coil 22 before being supplied to the underfloor space 26 of the free access floor 20 by means of a cross flow fan (blower) 24. According to the arrangement, floor area can be utilized effectively and local air conditioning can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air conditioning system for air conditioning a room, and more particularly to an underfloor air conditioning system for a room having a free access floor.

[0002]

2. Description of the Related Art A free access floor having a double structure of an upper floor and a lower floor which is usually used in a computer room or the like has a structure in which the upper floor is easily peeled off, and is provided in a duct provided in a space between the upper floor and the lower floor. It is easy to change the wiring of computers that are running. The space between the upper floor and the lower floor of the free access floor is also used as a chamber for supplying and ventilating conditioned air in the computer room.

FIG. 3 shows a conventional free access floor 60.
Is shown, and a conventional air conditioning system will be described. An underfloor space 66 is provided between the free access floor (upper floor) 60 and the lower floor 67 of the room 50 surrounded by the walls 52, 52, and is used as a wiring space, a supply of conditioned air for the room, and a ventilation chamber. are doing. The air inside the room 50 is taken in from the air intakes 54, 54,... Of the air handling units 58, 58,... And air-conditioned inside the air handling units 58, 58, and then blows out through the underfloor space 66. It is supplied to the room 50 through the mouth 68.

Although not shown, a plurality of air handling units 58, 58... Are placed in another room, and the air handling units 58, 58.
There is also a method of performing air conditioning by connecting 0.

[0005]

However, in a conventional air conditioning system for a room having a free access floor, the occupied area of a plurality of air handling units installed along a wall is large, so that the air handling units become an obstacle. As a result, the floor area of the room cannot be used effectively. Also, in the method of placing the air handling unit in a separate room and connecting the air handling unit and the room with a duct, a decrease in usable floor area due to the occupation of the air handling unit in another room is a disadvantage. Was.

Further, if local air conditioning is to be performed in a place where conditioned air is required in a concentrated manner, the surroundings are occupied by an air handling unit, and there is a problem that the air-conditioning object cannot be freely installed. The present invention has been made in view of such circumstances, and in an air conditioning system for a room having a free access floor, the floor area can be effectively used, and the conditioned air is concentrated in a necessary place. It is an object of the present invention to easily enable local air conditioning that can be supplied.

[0007]

In order to achieve the above object, the present invention provides an air conditioning system for a room having a free access floor having a dual structure of an upper floor and a lower floor, wherein an air space is provided under the floor of the free access floor. A handling unit is provided, and conditioned air conditioned by the air handling unit is blown out from the upper floor of the free access floor.

According to the present invention, the air handling unit is provided in the space below the floor of the free access floor, and the conditioned air conditioned by the air handling unit is blown out from the upper floor of the free access floor, so that the floor area is effectively used. Therefore, local air conditioning can be easily performed. In order to achieve the above object, the present invention is characterized in that the air handling unit includes a blower, a filter, and a dry coil.

According to the present invention, since the air handling unit includes the blower, the filter, and the dry coil, it is possible to remove suspended matters in the air. In order to achieve the above object, the present invention is characterized in that the air is sucked into the air handling unit by providing a partition wall that forms an air path on a wall surface of a room and sucking the air through the air path.

According to the present invention, the air is sucked into the air handling unit by providing a partition wall forming an air passage on the wall surface of the room and sucking the air through the air passage, so that the duct is eliminated from the room. As a result, the floor area can be more effectively utilized.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an underfloor air conditioning system according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows an example in which an underfloor air-conditioning system according to the present invention is provided in a room 10 of a free access floor system used for an electronic computer room or the like. Another partition 13, 13 is provided inside the walls 12, 12 of the room 10. Between the walls 12 and 12 and the partitions 13 and 13, an air suction port 15 and an air passage 16 at the upper part of the wall are provided.
The air of 0 is sent through the air passage 16 to the air handling unit 18 installed in the underfloor space 26 between the free access floor (upper floor) 20 and the lower floor 17. Further, the same purpose can be achieved by providing a wall air inlet 14 and an air passage 16 for guiding the sucked air to the partition 13 for the same purpose. The air sent to the air handling unit 18 is reduced in dust by the filter 21 and then dried.
The air is blown into the underfloor space 26 of the free access floor 20 by the cross flow fan (blower) 24. A plurality of the air handling units 18 may be installed at necessary positions as needed. In the free access floor 20, the outlets 28, 2
8 are provided, and the air handling unit 18 is provided.
The air whose temperature has been gradually reduced, dehumidified, and temperature is discharged from the underfloor space 26 into the room 10.

FIG. 2 shows another embodiment of the air handling unit 48. FIG. 2 shows an example in which a blowing fan 40 is used to blow air from the air handling unit 48. However, the blower is not limited to the cross flow fan 24 or the blower fan 40, and any blower having a blower function can be applied. Alternatively, the object can be achieved by opening the air intake port 42 of the air handling unit 48 at the upper part of the air handling unit 48 and providing a louver (not shown) on the free access floor 20 to directly suck air from the floor.

Although the above examples have been described with respect to the example in which the filter 21 is provided, a configuration in which the filter 21 is omitted may be considered. In the above example, the example using the dry coil 22 has been described.
It is conceivable to use a refrigerant other than the dry coil 22, and it is also possible to use a heater (not shown), a humidifier, and a refrigerator in the air handling unit 48 as a packaged air conditioner.

In the above example, the air passage 16 is provided on the entire surface of the wall 12, but it may be arranged on a part of the wall 12 like a duct.

[0015]

As described above, according to the underfloor air conditioning system according to the present invention, an air handling unit is provided in the underfloor space of the free access floor, and the conditioned air conditioned by the air handling unit is supplied to the free access floor. Since the air is blown out from the upper floor, the floor area can be effectively used, and local air conditioning can be easily performed.

According to another aspect of the present invention, the air handling unit includes a blower, a filter, and a dry coil, so that suspended matter in the air can be removed.
According to another aspect of the invention, the air is sucked into the air handling unit by providing a partition wall that forms an air passage on the wall surface of the room and sucking the air through the air passage, so that the duct can be eliminated from the room. Therefore, the floor area can be more effectively utilized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an underfloor air conditioning system according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the air handling unit according to the present invention.

FIG. 3 is a perspective view showing a conventional air conditioning system for a free access floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Room 14 ... Wall air suction port 15 ... Wall upper air suction port 17 ... Lower floor 18 ... Air handling unit 20 ... Free access floor (upper floor) 21 ... Filter 22 ... Dry coil 24 ... Cross flow fan (blower) 28 ... Outlet

Claims (3)

[Claims] 1. An air conditioning system for a room having a free access floor having a dual structure of an upper floor and a lower floor, wherein an air handling unit is provided in a space below the free access floor, and air-conditioned air conditioned by the air handling unit is provided. An underfloor air conditioning system, wherein the air is blown out from the upper floor of the free access floor. 2. The underfloor air conditioning system according to claim 1, wherein the air handling unit includes a blower, a filter, and a dry coil. 3. The underfloor air conditioning system according to claim 1, wherein the air is sucked into the air handling unit by providing a partition wall forming an air passage on a wall surface of the room, and sucking the air through the air passage. .