JPS61223438A - Air-conditioning system - Google Patents

Abstract

PURPOSE:To simplify laying work and improve energy saving by a method wherein a floor is laid on slub so as to be apart from the slub to use a space between both members as an atmosphere chamber and air-conditioning air is supplied into a room utilizing the atmosphere in the chamber as a heat source. CONSTITUTION:A building 10 is formed with a plurality of slubs 12A, 12B so as to be a multi-floor building. The free-access floor 14 is laid ion the slub 12A so as to be apart from the sub 12A and the space between the floor 14 and the slub 12A is used as the atmosphere chamber 16. The atmosphere chamber 16 is formed with a louver 22 and a damper 24 so as to be faced to the outside of the building and the amount of atmosphere, taken into the atmosphere chamber 16, can be regulated. An air-conditioning unit 34 is arranged at any arbitrary position in the atmosphere chamber 16 and the air in the atmosphere chamber 16 can be blown into the room at any desired position. According to this method, the laying work is easy and the constitution is suitable for energy saving while the degree of freedom of arranging indoor equipments may be improved.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to an air conditioning system for air conditioning inside a building.

[Background technology]

Generally, air conditioning systems in buildings place a duct between a concrete slab and a ceiling plate, and indoor air is exhausted through this duct and sent to the air conditioning unit.
Conditioned air is supplied indoors through similar ducts.

In addition to the air chamber, electrical wiring, subwoofers, underground pipes, etc. are arranged in this space within the ceiling. For this reason, all air conditioning work, etc. must be done inside the ceiling, which makes the work complicated and a big loss.

In addition, conventional lighting, air conditioning exhaust, and intake ducts are arranged in multiple pieces at predetermined intervals, so even if only a portion of the room is used, air conditioning and lighting must be applied over a wide area, which contributes to energy savings. It's contrary.

For this reason, the present applicant provided an air chamber between the slab and the floor, sent temporarily treated air-conditioned air into this air chamber via an air conditioning unit, and installed a secondary processing unit at an arbitrary position within the air chamber. proposed a system for supplying conditioned air to indoor rooms (Special 1a, 1973).
No. 131251).

This proposed air conditioning system is suitable for cases in which the temporary air conditioning subunit that sends conditioned air to the air chamber under the floor is used to treat all temporary air conditioning units in a building with a concentrated heat source.

In consideration of the above facts, the present invention aims to provide an air conditioning system that is an individual type that does not require a centralized heat source, is easy to install, is suitable for energy saving, and has excellent flexibility in installing air conditioning equipment. be.

[Summary of the invention]

In the air conditioning system according to the first invention of the present application, a floor is laid apart on a slab, an outside air chamber is formed between the floor and the slab, and the outside air in the outside air chamber is used as a heat source to supply conditioned air indoors. It is characterized by supplying

Further, in the air conditioning system according to the second invention of the present application, there is provided a free access floor that forms an outside air chamber between the floor and the floor that is laid apart on the slab, and a free access floor that is placed in the outside air chamber and that is arranged to air the outside air chamber. The air conditioning unit is characterized by having an air conditioning unit that supplies air into the room after being air conditioned, and a floor-standing equipment unit that is installed on the raised floor and has a discharge path for the air supplied from the air conditioning unit.

Therefore, in the present invention, an outside air chamber is formed between the slab and the floor, and an air conditioning system including an air conditioning unit, electric power,
All information, telephone, and other low-power cables are placed below the floor, simplifying construction work and eliminating work in the attic.
are doing. In addition, since the air conditioning units can be individually placed in any position, the F can be taken out from any desired position indoors, and a floor-standing equipment unit with an air supply path to the room can be placed in any position corresponding to the air conditioning unit. The system is designed to provide effective air conditioning and achieve energy savings.

[Embodiments of the invention]

FIG. 1 shows a building 10 to which an air conditioning system according to this embodiment is applied. This building 10 has a slab 12A,
A plurality of 12B etc. are formed to form a multi-story building. A free access floor 14 is laid on the slab 12A apart from the slab l 2 A, and an outside air chamber 16 is formed between the slab 12A and the slab 12A.

As shown in FIG. 2, the free access floor 14 is
The seismic isolation floor structure 17 may be placed on the slab 12A, and the floor panel 20 may have a structure in which a plurality of floor panels 20 are laid on the upright support 1B.
Construction is facilitated by making the plate material of a predetermined size.

The outside air chamber 16 is provided with a louver 22 and a damper 24 facing the outside of the building, so that the amount of outside air taken into the outside air chamber 16 can be adjusted. It is preferable that the damper 24 has a configuration in which the opening/closing amount thereof can be adjusted by remote control.

A louver 26 and an outside air exhaust fan 2B are provided on the opposite side of the louver 22, so that the air in the outside air chamber 16 can be exhausted to the outside when necessary.

An air conditioning unit 34 is located at any position within the outside air chamber 16.
is arranged so that the air in the outside air chamber 16 can be blown out into the room at a desired position.

As shown in FIG. 2, the housing 36 of this air conditioning unit 34 is separated into an air supply passage 40 and a return air passage 42 by a separator 38, and the air supply passage 40 has a humidifier 4.
4, a filter 46, a heat exchanger 48, and a heater 50 are arranged.

The heat exchanger 48 is connected to the heat exchanger 54 of the external unit 52 so that a cooling/heating medium can flow therethrough. This refrigerating medium is compressed and expanded by the compressor 56, absorbs the heat in the air supply passage 40, and is discharged from the heat exchanger 54 for cooling, and the heat exchanger 54 receives air from the fan 58.
Heat can be exchanged with the outside air inside the outside air chamber 16.

During heating, the heat in the outside air chamber 16 is transferred to the air supply passage 40.
Although the heat pump system uses a heater 50 as an auxiliary heat source, other types of air conditioners can also be used.

A damper 60 is provided at the lower end of the air passage 42 to allow outside air in the outside air chamber 16 to be taken into the air passage 42. This damper 60 is configured to be controlled by remote control so that its opening/closing degree can be changed. A fan 62 is provided at the lower end of the air return passage 42 to mix the air from the return air passage 42 with the outside air in the outside air chamber 16 that has passed through the damper 60 and send the mixture to the air supply passage 40. It looks like this.

As shown in detail in FIG. 3, a floor equipment unit 64 is installed on the floor panel 20. This floor-standing equipment unit 64 has a configuration that serves as both equipment and office equipment, and inside the vertical wall 66 there is a supply air duct 68 and a return air duct 70 that constitute a discharge path for the conditioned air from the air conditioning unit 34.
are installed vertically at the top and bottom. These air supply ducts 68 and return air ducts 70 are each connected to the air supply passage 40.
A floor equipment unit 64 is placed on the floor panel 20 so as to communicate with the return air passage 42.

The air supply duct 68 communicating with the air supply passage 40 is provided with a lower blower 2 near its upper end for blowing out air-conditioned air directly above the floor panel 20, and an upper blower 4 near its upper end. It is preferable that these lower blowing lower blower 2 and upper blowing lower blower 4 be provided with a damper that can change the opening area as necessary.

The return air duct 70 is provided with a suction lower at a position above the lower blow-out lower 2 to suck indoor air into the air conditioning unit 34. A temperature sensor 78 is provided near this suction lower part.

A desk plate 80 protrudes in front of the standing wall 66, and the OA
It is used to mount equipment 82 (Fig. 1), etc. Further, side walls 84 are connected to both sides of the vertical wall 66, and a control device 86 is attached to the side walls 84. This control device 86 operates the air conditioning unit 34, damper 24, 60, etc. based on signals from the temperature/humidity sensor 78, etc., and automatically or manually adjusts the ambient temperature of the worker working at the desk plate 80 to a desired value. can be controlled.

Further, the standing wall 66 is provided with a task light 88 for illuminating the work area of the office worker, and the upper end of the standing wall 66 is provided with an ambient light 90 that mainly illuminates the upward direction and indirectly illuminates the surrounding area by reflecting the ceiling. ing. These lights are connected to the wiring and control device 8 disposed within the standing wall 66.
6, and can be operated as desired by the office worker.

Wiring to the control device 86 can be supplied from wiring provided in the outside air chamber 16 through the standing wall 6G, side wall 84, etc., and if necessary, a connector may be installed between the standing wall 66 and the floor panel 20. can be provided.

Further, if necessary, a smoke exhaust ventilation fan 96 may be provided in the upper part of the room near the perimeter of the room.

A wall-through type air conditioning unit 98 is arranged at the bottom.

The smoke may be removed by a smoke evacuation device such as the smoke evacuation port 97 installed at the top of the meter. In this case, during normal times, this smoke evacuation device is used as an exhaust fan and is linked to the ventilation operation of the air conditioning unit 34. Outside air cooling can also be performed. Further, smoke may be exhausted by a central smoke exhaust machine via a smoke exhaust duct from a smoke exhaust port provided on an inner wall or the like.

The air conditioning unit 98 uses a fan 100 to send indoor air through a filter 102 to a heat exchanger 104 to cool it, and blows it out from an outlet 106 to the inside of a window 107.
This structure suppresses the temperature rise near the window.

For this reason, the heat exchanger 104 is connected to a heat exchanger 108 so that the refrigerant can be circulated, and the heat exchanger 108 is blown with outside air by a fan 110 so that the heat extracted from the room can be released to the outside. It has become. Corresponding to this air conditioning unit 98, there is a pyranometer on the outside of the building.
2. An outside temperature sensor 114 is provided to compress TA 109;
It is used for operating fans 100 and 110.

If the air conditioning unit 98 is of a heat pump type, warm air can be blown out from the air outlet 106 as needed, and a separate heater may be provided for blowing out the warm air.

Since the fan coil type air conditioning unit 98 is provided in the perimeter portion in this way, it is possible to increase the difference in the temperature of the air from the outlet 106 and the indoor air, making it possible to cope with a large window load. . Since this air conditioning unit 98 only needs to handle the perimeter load, it can be downsized.

Note that an equipment group control device 116 that can control a plurality of air conditioning units may be provided indoors, and a representative room thermostat 118 that sends a signal to this device may be provided.

In this embodiment configured in this way, the air conditioning unit 34
．． 98. All communication wiring such as electrical wiring for indoor electrical equipment, telephone lines, and information lines will be placed between the slab 12A and the raised floor 14, so there is no need for any of these on the ceiling. Therefore, the construction and repair work becomes significantly easier.

Further, water pipes for water and sewage used indoors can be similarly arranged between the slab 12A and the free access floor 14.

Additionally, items required by law, such as splinter piping and emergency lights, can also be installed on the ceiling.

To explain such control of the air conditioning unit 34, first, the opening degree of the outside air damper 60 is set, and the amount of outside air supplied per each floor-standing equipment unit 64 is set. The mixed air of this amount of outside air and air whose air volume is set by a return air damper (not shown) of the floor-mounted equipment unit is adjusted to a desired temperature and humidity in the air supply passage 40, and is normally blown into the room from the upper blowing lower 4. .

However, when an office worker wants to warm his/her feet during the winter season, mid-season, etc., the blowing amount of the lower blowing lower blower 2 and the upper blowing lower blower 4 can be changed in accordance with a command from the control device 86 to concentrate blowing onto the feet. The amount of airflow from the lower airflow lower 2 and upper airflow lower 4 can also be changed manually.

This air conditioned air is sent out in a desired amount around the area of the office worker working on the desk plate 80, so it is extremely efficient compared to the conventional case where air conditioning is performed only on a room-by-room basis. Furthermore, the lighting device is also efficient because it illuminates the office space of the worker with the desired illuminance.

Part of the contaminated air inside the room is exhausted by the outside air exhaust fan 28 via a separately provided exhaust fan (for the toilet, etc.), a smoke exhaust ventilation fan 96, or the floor return louver 115. The remaining air enters the air supply duct 70 through the suction lower air passage 42, is sent back into the air supply passage 40 by the fan 62, and is circulated indoors after being air-conditioned.

Such an air conditioning unit 34 and a floor-mounted equipment unit 64 can be placed at any position on the free access floor 14 by removing the floor panel 20, or by connecting the air supply passage 40 and the air supply passage 42 to the floor panel 20. Duct 6
B. By providing an opening that communicates with the air duct 70, these units can be placed at a desired position, eliminating the conventional restrictions on installation of these units due to underfloor piping (see Japanese Patent Application No. 131251/1982). Therefore, there are no restrictions on installing the floor-standing equipment unit 64, and it is possible to solve the problem that conventionally, the position where furniture can be installed is limited due to restrictions on empty TM equipment, electric wiring, etc.

In addition, since the air conditioning unit 34 only needs to have an air conditioning capacity within the range that the support of the corresponding floor equipment unit 68 has in principle, it can be downsized, and the dimension between the floor panel 20 and the slab 12 is small. It is possible to reduce floor construction costs.

〔Effect of the invention〕

As explained above, in the air conditioning system according to the present invention, since the outside air chamber is used between the floor and the slab, the construction work is easy, it is suitable for energy saving, and the degree of freedom in arranging indoor equipment can be improved. Has excellent effects.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view showing a building to which the air conditioning system according to the present invention is applied, FIG. 2 is a sectional view of the air conditioning unit used in FIG. 1, and is a sectional view taken at right angles to FIG. FIG. 3 is a cutaway perspective view of the floor-standing equipment unit. DESCRIPTION OF SYMBOLS 10... Building, 12A, 12B... Slab, 14... Raised floor, 16... Outside air chamber, 20... Floor panel, 34... Air conditioning unit, 48.54... Heat exchanger, 64...floor equipment unit, 68...air supply duct, 70...air duct, 86...control device.

Claims (2)

[Claims] (1) An air conditioning system characterized by installing a floor spaced apart on a slab, creating an outside air chamber between the floor and the slab, and supplying conditioned air indoors using the outside air in the outside air chamber as a heat source. (2) a free access floor that is laid apart on the slab and forms an outside air chamber between it and the floor; an air conditioning unit that is placed in the outside air chamber and supplies air from the outside air chamber to the room after conditioning; An air conditioning system comprising: a floor-standing equipment unit installed on an access floor and provided with a discharge path for supplied air from the air conditioning unit.