JP2003279100A - Task ambient air conditioning method and air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means for performing a task ambient air conditioning without damaging comfortability by using minimum energy. <P>SOLUTION: A task area 13 formed in a room 10 is air conditioned by a floor blow-out method and an ambient area 14 is air conditioned by a displacement ventilation air conditioning method. For the task area 13, air supply is conducted from a double floor by the floor blow-out method and, for the ambient area 14, air conditioned air supplied from the same air source as the air conditioned air to be supplied to the task area 13 is introduced to a displacement ventilation chamber 55 from the double floor and supplied to below the room 10. As a stirring action by air conditioned air of nonresidential space which becomes hot is not included, energy consumption is saved on and comfortability is maintained just by blowing only required amount of air. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a task / ambient air conditioner for separately controlling a task area and an ambient area formed in a room for air conditioning.

[0002]

2. Description of the Related Art Generally, in a room, a task area (work area) in which a worker operates an OA device is individually air-conditioned, and an ambient area surrounding the task area (human stay is unsteady). Task / ambient air conditioning is known in which the area) is controlled separately from the task area. This task / ambient air conditioning aims to improve comfort by individually air-conditioning the task area. Regarding task / ambient air conditioning, (A)
A method in which air is blown from the ceiling nozzle to the task area and the ambient area is air-conditioned by ceiling blowout air conditioning, (B) The task area is blown out from the floor and the ambient area is attached to the ceiling by this blown air conditioning. A method of air conditioning with a jet flow is known.

[0003]

However, according to the method (A), it is difficult to change the layout, the number of devices in the ceiling is increased, and the load is increased by air conditioning to the non-task area (ambient area). Further, according to the method (B), the system becomes complicated, and the non-task area (ambient area)
There is a problem such as an increase in load due to air conditioning. According to these methods (A) and (B), in the conventional task / ambient air conditioning, the entire room is air-conditioned, so it is difficult to save energy.

[0004] Here, it is generally said that the floor air-conditioning is easy to provide an air outlet near the occupants and is excellent in personality. However, in order to transfer heat from the lower floor or the room in the double floor, , As the outlet temperature moves away from the air conditioner,
A big rise (or fall). The thermal sensation varies depending on the airflow velocity in the exposed area, but it greatly differs depending on the airflow temperature, and if task / ambient air conditioning is performed only by blowing out the floor, the sensation will greatly vary depending on the location. In this case, if the blowout temperature can be made uniform within an appropriate range, it becomes easier to adjust the individual sensation. However, in an ordinary office, the area ratio between the task area and the ambient area is about 1: 1 and if the floor outlets of half of them can be centrally located far away from the air conditioner for ambient, the underfloor temperature can be made more uniform. It is not realistic because there are restrictions such as furniture. In addition, floor blowout air conditioning requires a large number of blowout openings, and the places where it can be installed are limited, so proper placement may be difficult.

An object of the present invention is to provide a means capable of performing task / ambient air conditioning with a minimum amount of energy without impairing comfort.

[0006]

To achieve this object, according to the present invention, a task area formed in a room is air-conditioned by a floor blow-out method, and an ambient area is air-conditioned by a displacement ventilation air-conditioning method. A featured task / ambient air conditioning method is provided. This air conditioning method saves energy because it does not cause the agitating action of the conditioned air in the non-residential area where the temperature becomes high, and the comfort can be maintained by supplying only the necessary amount of air.

In the task / ambient air conditioning method of the present invention, air is supplied to the task area from the double floor by a floor blowing method, and the ambient area is supplied from the same air source as the air-conditioning air supplied to the task area. The conditioned air
It may be introduced into the displacement ventilation chamber from the double floor, and air may be supplied below the chamber. In this case, pressurized air may be supplied to the task area from the double floor by a pressure blowing method, or air may be supplied to the task area from the double floor using a fan. You can Cost reduction can be achieved by supplying conditioned air supplied from the same air source (double floor) to the task area and the ambient area. Also, since air is sent to the replacement ventilation chamber installed on the outer periphery of the task area, the air volume in the double bed far from the air conditioner becomes large, so the temperature inside the double floor becomes uniform, and the temperature distribution of the indoor air becomes uniform. Be converted.

Further, the ambient area is supplied with air from a perimeter and the hot air generated in the perimeter zone is forcibly exhausted to the outside of the room above the perimeter zone, at which time the temperature of the hot air generated in the perimeter zone. It is preferable to determine the exhaust air volume based on the above, and forcibly discharge the cold draft generated in the perimeter zone to the outside of the room below the perimeter zone. For example, in the summer, the hot air generated and rising in the perimeter zone can be quickly exhausted to the outside of the room without stirring the room atmosphere, thereby preventing the effect on the room atmosphere. In addition, by supplying the conditioned air supplied from the same air source to the task area and the ambient area,
Air treatment of the perimeter zone can be performed at low cost. In addition, for example, in winter, cold draft generated in the perimeter zone is forcedly discharged outside the perimeter zone to prevent the influence on the indoor atmosphere. Also, for example, in the winter, when hot air is generated by solar radiation in the perimeter zone,
The hot air generated in the perimeter zone and discharged to the outside can be supplied to the inside of the room again for heating. It should be noted that "outdoors" is a concept that includes "return air" that is exhausted outdoors, and is also temporarily exhausted to the ceiling and reused for air conditioning.

Further, the hot air generated in the perimeter zone is discharged from a plurality of points, and when the room temperature is lower than the set temperature, the exhaust amount is reduced at the point where the temperature of the hot air to be discharged is high, and the hot air to be discharged is reduced. It is preferable to increase the exhaust amount in the place where the temperature is low. In this case, there are a plurality of perimeter zones, and for these perimeter zones, the exhaust amount is reduced for the perimeter zone where the temperature of the hot air discharged is high, and the exhaust amount is reduced for the perimeter zone where the temperature of the hot air discharged is low. You may increase it. Further, when hot air is discharged at a plurality of locations in one perimeter zone, the exhaust amount is reduced in the perimeter zone where the temperature of the hot air that is discharged is high, and the exhaust air is exhausted where the temperature of the hot air that is discharged is low. The amount may be increased. In this way, when the exhaust amount is increased or decreased at a plurality of locations in one perimeter zone, the plurality of locations may be partitioned by partitions or the like, or such partitions may not exist.

Further, according to the present invention, the air outlet for supplying the air for performing the task air conditioning to the task area formed in the room is arranged on the floor surface of the room, and the replacement ventilation air conditioner is arranged in the ambient area formed in the room. A task / ambient air-conditioning system is provided in which an air supply port for supplying air for performing air conditioning is arranged on a side surface of the room, and an air intake port for discharging air in the room is installed on a ceiling surface of the room. It The air exhausted from the intake port installed on the ceiling surface of the room may be returned to the room after air conditioning or may be exhausted to the outside as it is.
In this way, the intake port installed on the ceiling surface can be used properly according to various operation modes. In this air conditioning system, at the floor level of the room, for the task area, the air for performing the task air conditioning is supplied from the outlets arranged on the floor surface of the room, and for the ambient area, Air for displacement ventilation is arranged on the side of the room and supplied from the air supply port. Then, the air in the room is exhausted by the intake port installed on the ceiling surface of the room. By replacing ventilation suitable for residential area air conditioning, the air volume required for ventilation in the ambient area can be supplied, the underfloor temperature can be made uniform, and the floor area in the task area can provide personal air conditioning. In addition, it is possible to save energy by reducing the initial cost by reducing ducts, shortening the air conditioning start-up time, and performing air conditioning in the ambient area below the height of the living area. The layout can be changed easily,
A simple system can be configured without increasing the number of equipment in the ceiling, and an increase in load can be avoided to save energy.

In this air conditioning system, a peri-counter is arranged in the perimeter zone, and in this peri-counter,
A displacement ventilation chamber equipped with fins that give a swirling component to the blown airflow is arranged, an air volume adjustment mechanism is installed at the outlet for supplying air to the task area, and air conditioning is supplied from the same air source to the task area and the ambient area. It may be configured to supply air. By supplying air from the peri-counter to the ambient area by displacement ventilation to make the underfloor temperature uniform and to supply air whose air volume has been adjusted to the task area, personal air conditioning can be enhanced. Also,
The ductless design reduces initial costs and air conditioning start-up time. Moreover, even in the ambient area, further energy saving can be achieved by air conditioning up to the height of the living space.

Further, a partition may be arranged at a position separating the task area and the ambient area, and an opening for air circulation may be provided at the foot of this partition. In this case, "foot" means the lower part of the foot, for example, a height of 30 cm or less above the floor. By providing an opening under the partition in this way, it is possible to convey the supply air of the replacement ventilation air conditioning to the task area and supply the air used in the ambient air conditioning to the task area as well, thus reducing the air volume as a whole. The air outlet for supplying air for task air conditioning may have an air volume adjusting function. Further, fins for adding a swirling component may be provided at the outlet for supplying the air for performing the task air conditioning and the air inlet for supplying the air for performing the replacement ventilation.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic configuration of a task / ambient air conditioning system (hereinafter referred to as “air conditioning system”) 1 according to an embodiment of the present invention.

The interior of the chamber 10 is below (from the floor 20 to 1.8).
The living space 8 is up to a height of about m), and the non-residential space 9 is located above the living space 8. In the living space 8, a task area (work area) 13 in which a worker 11 operates the OA equipment 12 and the like, and an ambient area 14 surrounding the task area 13 are formed. The ambient area 14 is formed within a range of, for example, about 50 cm from the wall surface. In the illustrated example, a plurality of partitions 16 are installed so as to partition each work space 15 existing in the task area 13 from each other. Then, a part of the partitions 16 of the plurality of sheets is arranged at a position to partition the task area 13 and the ambient area 14. Further, openings 17 are provided at the feet of the respective partitions 16.

An air supply chamber (double floor) 21 is formed below the floor 20 of the chamber 10, and a return air chamber 23 is formed above the ceiling 22 of the chamber 10. An air conditioning machine room 25 is formed on one side surface of the room 10 (the right side surface of the room 10 in the example shown in FIG. 1). Air conditioning machine room 25
An air conditioner 29 including a filter 26, a heat exchanger 27, and a fan 28 is installed in the air conditioner. And this air conditioner 2
A return air duct 29a and an outside air intake duct 29b are connected to 9. Then, by operating the air conditioner 29, the return air RA taken from the return air chamber 23 and the outside air OA are mixed, dust is filtered, temperature and humidity are adjusted, and the produced supply air SA is supplied to the supply chamber 21. It is sent and supplied to the chamber 10.

The floor 20 of the chamber 10 is provided with an outlet 30 for supplying air (air supply SA) for performing task air conditioning to each work space 15 existing in the task area 13. As described above, the air conditioner 29 filters the dust, adjusts the temperature and the humidity, and supplies the supply air SA to the supply chamber 21, so that the inside of the supply chamber 21 has a positive pressure and is supplied through the outlet 30. Each work space 15 existing in the task area 13 is blown upward with the air SA.
Is blown from below.

FIG. 2 is a perspective view (a) and an exploded view (b) of the outlet 30. The blowout port 30 has a swirl guide vane 32 and a shutter 33 arranged vertically inside a casing 31 having a cylindrical shape with upper and lower openings, and a swirl guide vane 32 and a shutter 33 are attached to the upper surface of the casing 31 from above the swirl guide vane 32. The pressing member 36 is attached to the lower end of a shaft 35 that penetrates through the center of the shutter 33 and tightened.

The shutter 33 is provided with a plurality of blades 37, and when the motor 39 is operated, the blades 37 are centered around the shaft 35.
The positions of the wings 37 can be changed by rotating. For example, as shown in FIG. 3, when the wings 37 are aligned and stacked at the same position, the area blocked by the wings 37 becomes small and the shutter 33 is opened, so that the air supply SA passing through the outlet 30 The amount of airflow increases. Further, for example, as shown in FIG. 4, when the position of each wing 37 is shifted and widened, the area blocked by the wing 37 becomes large and the shutter 33 is in a closed state, so that the air supply SA passing through the outlet 30 is provided. The amount of air flow is reduced.

As shown in FIG. 1, each work space 15 existing in the task area 13 is provided with a controller 38 for controlling the operation of the motor 39 and thus opening and closing the shutter 33. Then, in each work space 15, the worker 11 operates the controller 38 to open and close the shutter 33, so that each work space 15
The air volume of the supply air SA blown upward from the outlet 30 is adjusted. When the cold air or the warm air supplied to the task area 13 is insufficient, the worker 11 operates the controller 38 to open the shutter 33, and conversely, in the case of excessive supply, the shutter 33 may be closed.

The swivel guide vanes 32 arranged above the shutter 33 are arranged around the central support member 40.
A plurality of plate-shaped fins 41 are radially attached at appropriate equal intervals. These fins 41 are arranged to be inclined with respect to the central axis (shaft 35) of the blowout port 30 in order to give a swirl component to the supply air SA blown out from the blowout port 30 toward each work space 15. The air outlet chamber 21 is blown out from the outlet 30.
2 when the supply air SA is supplied to the task area 13 through the
As shown in (a), the air supply SA blown from the blowout port 30 toward each working space 15 is given a swirl component about the shaft 35.

FIG. 5 is a plan view of the air supply chamber 21. One side surface of the air supply chamber 21 (in the example shown in FIG. 5, the right side surface of the air supply chamber 21) is connected to the lower end of the above-mentioned retin chamber 25, and the air supply is filtered and temperature-controlled by the air conditioner 29. SA is supplied into the air supply chamber 21 from one side surface of the air supply chamber 21. The supply air SA supplied into the supply air chamber 21 in this way collides with the diffusion plate 45 disposed inside the supply air chamber 21 and diffuses, and the supply air SA is evenly supplied to the entire interior of the supply air chamber 21. It has become so. The height of the diffusion plate 45 is, for example, about half the height of the air supply chamber 21,
The same diffuser plate as that disclosed in Japanese Patent Application Laid-Open No. 7-243665 (Japanese Patent No. 3040910) previously disclosed by the present applicant can be used.

In the illustrated example, on the other side surface of the air supply chamber 21 (the side surfaces shown on the upper and lower sides and the left side in FIG. 5), the air supply SA in the air supply chamber 21 is replaced by the replacement ventilation described later. An opening 46 for supplying the chamber 55 is provided.
Air supply SA supplied into the air supply chamber 21 as described above
Partly is blown upward to the task area 13 through an outlet 30 provided on the floor 20 of the room 10, and the rest is
Each replacement ventilation chamber 55 is supplied through the opening 46.

FIG. 6 shows a state in which the wall surface of the chamber 10 (the wall surface on the side surface where the retent chamber 25 is not formed on the back portion, in this embodiment, the perimeter zone) is viewed from the inside of the chamber 10. In the illustrated example, a window 50 is provided on the wall surface of the chamber 10, and columns 51 are provided on both left and right sides of the window 50.
And a peri-counter 52 is provided below the window 50. The front surface of the peri-counter 52 is formed as a ventilation surface 53 that supplies the supply air SA toward the lower part in the chamber 10.

FIG. 7 is an explanatory diagram of the inside of the peri-counter 52. A displacement ventilation chamber 55 is installed inside the peri-counter 52. In the illustrated example, the replacement ventilation chamber 55 is installed inside the peri-counter 52 provided at the bottom of each wall, except for the wall on the side of the building where the retum chamber 25 is formed in the back, so that the chamber 1
The replacement ventilation chamber 55 is arranged in the ambient area 14 formed around the task area 13 inside 0.

A large number of air supply ports 56 are opened on the front surface of the replacement ventilation chamber 55 (the surface facing the inside of the chamber 10). As described above, the replacement air is supplied from the inside of the air supply chamber 21 through the opening 46. The air supply SA supplied to the ventilation chamber 55 is supplied to the front surface of the replacement ventilation chamber 55 from the air supply port 56. In this way, the supply air SA supplied from the replacement ventilation chamber 55 further passes through the ventilation surface 53 on the front surface (the surface facing the inside of the chamber 10) of the pericounter 52 and the chamber 1
It is supplied to the ambient area 14 within 0. The ventilation surface 53 is attached for design purposes, and is provided at substantially the same position as the air supply port 56.

As shown in FIG. 8, a plurality of fins 57 are attached to each air supply port 56 that is open on the front surface of the replacement ventilation chamber 55. A support member 58 is provided at the center of each air supply port 56, and the fins 57 are radially attached around the support member 58 at appropriate equal intervals. The ambient area 14 in the room 10 from each air supply port 56
The fins 57 are arranged so as to be inclined with respect to the central axis of the air supply port 56 in order to impart a swirling component to the air supply SA supplied toward the air supply port 56. And the air supply port 5
When supplying the supply air SA from 6 to the ambient area 14 through the ventilation surface 53 on the front surface of the peri-counter 52, each fin 5
By forcibly flowing along the line 7, a swirling component is given to the supply air SA.

As shown in FIG. 9, in the case of the air supply ports 56 arranged side by side, the turning directions of the air supply SA discharged from the air supply ports 56 adjacent to each other have the same rotational direction. However, in the case where the air supply ports 56 are arranged vertically, the air supply ports 56 are arranged so that the swirling directions of the air supply SA discharged from the adjacent air supply ports 56 are in opposite rotational directions. The direction of the fins 57 attached to 56 is set. As a result, the supply air S that is discharged while swirling from each supply port 56
A has the same motion direction that spreads to the left and right, and spreads laterally without being offset.

As shown in FIG. 7, a duct 60 is erected beside the peri-counter 52 so as to be able to communicate with the peri-counter 52. The duct 60 is arranged, for example, in contact with the support column 51 shown in FIG. 6 (however, in FIG. 1, the duct 60 is shown outside the window 50 for the sake of explanation), and the return air chamber in the ceiling is provided. It leads to 23. The replacement ventilation chamber 55 is attached to the lower end of the duct 60 via an opening / closing damper 61.
A bypass pipe 62 that communicates with is connected. An opening 64 is formed at the lower end of the duct 60 so as to open into the peri-counter 52 via another opening / closing damper 63.

On the upper surface of the peri-counter 52, there is provided a slot 65 for allowing cold draft generated in the perimeter zone (the vicinity of the window 50 in the chamber 10) to flow down into the peri-counter 52 in the winter, for example. The opening is formed in the full width of 52 (approximately the same as the width of the window 50). The slot 65 is arranged below the perimeter zone along the window 50. As shown in FIG. 1, inside the peri-counter 52, there is provided a temperature sensor 66 for detecting that the cold draft has flowed into the peri-counter 52.

A fan 70 is connected to the end of the duct 60. For example, when a cold draft generated in the perimeter zone flows down from the slot 65 into the perimeter counter 52 in the winter season, the fan 70 is opened with the opening / closing damper 63 opened and the opening / closing damper 61 closed.
The cold draft that has flowed into the peri-counter 52 can be forcibly sent into the return air chamber 23 from the opening 64 through the duct 60. Further, when the opening / closing damper 61 is opened and the fan 70 is operated as the operation method at startup, the supply air SA in the supply chamber 21 is returned through the replacement ventilation chamber 55, the opening 46 and the duct 60. It can be forced into the air chamber 23.

The ceiling 22 of the chamber 10 is provided with an intake port 75 for exhausting the air in the chamber 10 into the return air chamber 23. By the operation of the air conditioner 29 described above, the return air chamber 23
Since the return air RA is taken from the return chamber 25 into the return chamber 25, the inside of the return air chamber 23 becomes a negative pressure, and the air at the ceiling level in the chamber 10 is returned to the return air chamber 23 through the intake port 75. It

A slot 76 is formed above the perimeter zone for discharging hot air generated in the perimeter zone out of the chamber 10 in the summer, for example. The slot 76 is located across the width of the window 50 and above the perimeter zone. An exhaust fan 78 is connected to the upper portion of the slot 76 through a duct 77, and in order to prevent hot air from staying in the vicinity of the window 50 (perimeter zone) in the summer, for example, the exhaust fan 7
By the operation of 8, the ascending airflow is quickly sucked from the slot 76 and exhausted to the outside through the duct 77. As a result, the cold air that has been conditioned in the vicinity is drawn near the window 50, and the heat is relieved. The slot 76 is provided with a temperature sensor 80 for detecting an ascending air current generated by heating in the perimeter zone.

In order to perform air conditioning in the air conditioning system 1, the air conditioner 29 is operated to control the air supply S.
A is sent to the air supply chamber 21 to make the inside of the air supply chamber 21 a positive pressure. In this way, the supply air SA is upwardly supplied to each work space 15 existing in the task area 13 in the chamber 10 through the outlet 30, while the peri-counter 52 is supplied to the ambient area 14. The supply air SA is supplied from the replacement ventilation chamber 55 installed inside through the ventilation surface 53.

Here, in the case where the air supply SA is supplied from the air supply chamber 21 into the chamber 10 to perform air conditioning as described above, FIG.
As shown in FIG. 0, heat is supplied to the inside of the air supply chamber 21 from the floor 20 of the chamber 10 (the upper surface of the air supply chamber 21) and the ceiling 22 ′ (the upper surface of the air supply chamber 21) on the lower floor of the chamber 10. The temperature of the supply air SA changes while moving in the supply air chamber 21 after the transfer. For example, when the cooling operation is performed in the summer, the outlet temperature of the air conditioner 29 is 20 degrees as shown in FIG.
If the temperature of the floor surface in the room 10 is 26 ° C and the temperature of the lower surface of the ceiling slab on the lower floor of the room 10 is 30 ° C, the floor 2
The heat Qoci is transferred from the chamber 10 to the air supply chamber 21 through 0, and the heat Qci is transferred from the lower floor of the chamber 10 to the air supply chamber 21 through the ceiling slab 22 '. As a result, the temperature Tsi of the supply air SA moving in the supply air chamber 21 rises. Further, for example, when the heating operation is performed in the winter, as shown in FIG. 10B, the outlet temperature of the air conditioner 29 is 22 ° C., the temperature of the floor surface in the room 10 is 24 ° C. If the temperature of the lower surface of the ceiling slab is 15 ° C, the floor 2
The heat Qoci is transferred from the chamber 10 to the air supply chamber 21 through 0, and is transmitted from the air supply chamber 21 to the chamber 10 through the ceiling 22 ′.
Heat Qci moves to the lower floor. As a result, the temperature Tsi of the supply air SA moving in the supply air chamber 21 is lowered. Air supply SA in the air supply chamber 21
The longer the moving distance is, the larger the temperature change becomes. In particular, in the air supply chamber 21, a position far from the air conditioner 29 (for example, in the air supply chamber 21 on the opposite side to the position where the letter chamber 25 is connected). On the side surface, the temperature of the supply air SA changes greatly.

Therefore, when the air conditioning system 1 is started, the air supply SA in the air supply chamber 21 is opened as shown in FIG. 11 by opening the opening / closing damper 61 described earlier with reference to FIG. 7 and operating the fan 70. Replacement ventilation chamber 55
Through the duct 60 to bypass the inside of the chamber 10 and forcibly send it into the return air chamber 23. Then, by operating the air conditioner 29, the return air RA taken from the return air chamber 23 is air-conditioned, and the created supply air SA is supplied to the supply chamber 2.
Send to 1. In this way, the supply air SA supplied to the supply air chamber 21 does not pass through the interior of the chamber 10 from the replacement ventilation chamber 55 through the duct 60, and remains as it is in the return air chamber 2.
Will be sent within 3. In this case, when the outside air OA is not taken into the air conditioner 29, only the return air RA is taken in and the temperature is adjusted to make the supply air SA, and the supply air SA is sent to the supply chamber 21 for circulation. good.

The air supply SA thus supplied to the air supply chamber 21 is forced to suck out most of the air supply SA from the air supply chamber 21 through the duct 60 by the operation of the fan 70. Therefore, the gas is hardly blown out from the blowout port 30, and is not supplied to the chamber 10 but is sent to the return air chamber 23. As a result, the floor 20 and the ceiling slab 22 'approach the temperature of the air-conditioned air, and when they become substantially equal, the normal operation is started.

Further, when the air conditioning system 1 is started up, it is preferable to return the supply air SA supplied to the supply air chamber 21 in a positional relationship in which the air passage is the longest. That is, it is desirable to extract the air flowing through the air supply chamber 21 and supply it into the return air chamber 23 through the duct 60 at the position opposite to the position where the letter chamber 25 is connected. For example, if the right side surface of the air supply chamber 21 is connected to the letter chamber 25 as in the example shown in FIG. 1, the duct 60 is connected to the replacement ventilation chamber 55 located on the left side surface of the air supply chamber 21. Is good. Then, in the air supply chamber 21, the air supply S
Since A moves from the right side surface to the opposite left side surface, it is possible to heat or cool the inside of the air supply chamber 21 with the supply air SA over the range from the right side surface to the left side surface.

FIG. 12 shows that from the air conditioner 29 to the replacement ventilation chamber 55, when the supply air SA from the air conditioner 29 is forcedly sent from the replacement ventilation chamber 55 into the return air chamber 23 through the duct 60 as described above. Distance (m)
6 is a graph showing the relationship between the temperature (° C.) of the supply air SA supplied to the replacement ventilation chamber 55. As can be seen from FIG. 12, when the distance from the air conditioner 29 to the replacement ventilation chamber 55 becomes longer, the temperature of the supply air SA supplied to the replacement ventilation chamber 55 changes in proportion thereto. The rate of change also changes according to the amount of supply air SA forcedly sent from the replacement ventilation chamber 55 into the return air chamber 23 through the duct 60. For example, when performing cooling operation in summer,
As shown in FIG. 12A, 100% of the supply air SA in the supply air chamber 21 is transferred from the replacement ventilation chamber 55 to the duct 60.
The air supply SA can be moved in the air supply chamber 21 in a state where the temperature rises the least when the air is sent to the return air chamber 23 through the air supply chamber 21. Further, for example, when performing the heating operation in winter, as shown in FIG. 12B, 100% of the supply air SA in the supply chamber 21 is sent from the replacement ventilation chamber 55 into the return air chamber 23 through the duct 60. When the temperature rises, the supply air SA can be moved in the supply air chamber 21 with the minimum temperature drop. Therefore, when the air conditioning system 1 is started, the air supply S supplied to the air supply chamber 21 is performed both during the cooling operation and the heating operation.
Return air chamber 2 through duct 60 as much of A as possible
Circulate directly in 3. Then, the air supply chamber 21
Promptly supply air across the inside from the right side to the left side
It is possible to heat or cool at A, the heat storage load of the air supply chamber 21 having a large heat capacity can be quickly processed, and the air conditioning warm-up time can be shortened.

Further, when the supply air SA is moved in the supply air chamber 21 as described above, the supply air SA collides with the diffusion plate 45 disposed inside the supply air chamber 21 and diffuses to generate the supply air SA. The air flows in the air supply chamber 21 from the right side surface to the left side surface while expanding in the width direction of the air supply chamber 21. When the air conditioning system 1 is started, the supply air SA quickly spreads throughout the supply chamber 21, so that the entire inner surface of the supply chamber 21 can be entirely heated or cooled in a short time.

After the inner surface of the air supply chamber 21 is entirely heated or cooled in this way, the opening / closing damper 61 described earlier with reference to FIG. 7 is closed and the operation of the fan 70 is stopped, thereby ending the start-up operation. Then, the operation of the air conditioning system 1 is started. That is, by operating the air conditioner 29, the air supply SA created by air conditioning is sent to the air supply chamber 21.
As a result, the inside of the air supply chamber 21 becomes a positive pressure, and the air supply SA is blown upward through the blowout port 30.
It is sprayed from below onto each work space 15 existing in the task area 13 therein. On the other hand, the air supply SA in the air supply chamber 21 is a side surface of the air supply chamber 21 (a side surface not connected to the lower end of the letter chamber 25, which is shown on the upper and lower sides and the left side in FIG. 5). It is also supplied to a replacement ventilation chamber 55 installed inside each peri-counter 52 in the chamber 10 through an opening 46 provided in the side surface of the air supply chamber 21. The supply air SA thus supplied to each of the replacement ventilation chambers 55 is the ventilation surface 53 on the front surface of the peri-counter 52.
And is supplied to an ambient area 14 formed around the task area 13 inside the chamber 10.
In this case, since the start-up operation as described above has already been performed to preheat or cool the entire air supply chamber 21 with the air supply SA, it is possible to suppress the temperature fluctuation of the air supply SA inside the air supply chamber 21. The supply air SA can be supplied to the task area 13 and the ambient area 14 at a stable temperature.

Even when the supply air SA is supplied from the inside of the supply chamber 21 into the chamber 10 through the outlet 30 provided on the floor 20 and the ventilation surface 53 on the front surface of the peri-counter 52, the supply air is supplied. Since the supply air SA collides with the diffusion plate 45 arranged inside the chamber 21 and diffuses, the supply air SA is
It quickly spreads throughout the air supply chamber 21. As a result, the inside of the air supply chamber 21 is uniformly pressurized, and air is supplied to the task area 13 and the ambient area 14 through the outlets 30 provided on the floor 20 and the ventilation surfaces 53 in front of the peri-counter 52. It becomes possible to supply SA evenly.

The outlet 30 provided on the floor 20
The supply air SA blown upward from the air conditioner performs air conditioning (task air conditioning) on each work space 15 existing in the task area 13 in the room 10. At that time, outlet 30
The supply air SA is forced to flow along the fins 41 attached to the swirl guide vanes 32 of
Air supply SA blown from 0 to each work space 15
Is given a turning component. The supply air SA supplied to the task area 13 while turning in this manner is supplied to the outlet 3
After being ejected from 0, the surrounding air is sprinkled in to air-condition each work space 15, and the work space 15 is decelerated immediately after being ejected. Therefore, even if the ejection speed is relatively high, the draft uncomfortable area is reduced. You can In this way, as for the task area 13, only the living area 8 (generally, a range of about 1.8 m or less from the floor) can be air-conditioned. Since the replacement ventilation air conditioning is also used in this way, the heat accumulated above it (non-residential area 9) is not stirred in the residential area 8.

When the task area 13 is air-conditioned in this manner, the controller 3 arranged in each work space 15
When the worker 11 operates 8, the shutter 33 built in the outlet 30 can be opened and closed. Accordingly, the air volume of the supply air SA blown upward from the outlet 30 of each work space 15 is adjusted, and individual control of each work space 15 existing in the task area 13 is also possible.

On the other hand, the supply air SA supplied from the replacement ventilation chamber 55 installed inside each peri-counter 52.
Passes through the ventilation surface 53 in front of the peri-counter 52,
It is supplied to the ambient area 14 within 0. In this case as well, each air supply port 56 on the front surface of the replacement ventilation chamber 55 is similarly.
Since the supply air SA is forced to flow along the fins 57 attached to the
A swirl component is given to the supply air SA supplied toward the. Then, while turning like this, the ambient area 1
After being ejected from the air supply port 56, the supply air SA to be supplied to the air supply chamber 4 is supplied to the ambient area 14 while entraining the surrounding air, and the draft uncomfortable area can be similarly narrowed. In this way, replacement ventilation air conditioning is performed for the ambient area 14.

Thus, at the floor level in the room 10,
While performing the task air conditioning for the task area 13 and performing the replacement ventilation for the ambient area 14, the air at the ceiling level in the room 10 is returned by the intake port 75 arranged in the ceiling 22 of the room 10. The air is exhausted into the air chamber 23.
The air thus exhausted into the return air chamber 23 becomes the return air RA due to the operation of the air conditioner 29.
5 is mixed with the outside air OA as appropriate, and after being air-conditioned, it becomes the supply air SA again and is sent to the supply chamber 21.
It is supplied into the chamber 10 on the floor. As described above, the task area 13 is subjected to pressurized floor-blowing-type task air conditioning, and the ambient area 14 is subjected to replacement ventilation to perform air conditioning limited to the living area (not the entire room 10). As a result, energy saving can be achieved.

Further, when performing the task air conditioning of the task area 13 and the displacement ventilation of the ambient area 14 in this way, the air in the ambient area 14 is discharged from the openings 17 provided at the foot portions of the respective partitions 16 into the task area 13 Will flow into. As a result, it is possible to perform efficient replacement ventilation for the task area 13 as well.

When hot air is trapped in the perimeter zone in the summer, for example, the temperature sensor 80 detects the hot air and the exhaust fan 78 is operated to suck the hot air rising along the window 50. , Suction from the slot 76 provided in the ceiling 22 promptly, and the duct 77
Exhaust to the outside of the room 10 through. As a result, the stirring action in the upper part of the chamber 10 due to the rising air flow of the hot air generated in the perimeter zone is prevented, the flow-through load and the heat of solar radiation generated in the perimeter zone are reduced, and an increase in the interior load is prevented. In that case, for example, when the temperature of the hot air detected by the temperature sensor 80 becomes equal to or higher than a predetermined temperature, the hot air may be exhausted to the outside of the chamber 10.

When a cold draft is generated in the perimeter zone and flows down into the perimeter counter 52 from the slot 65, for example, in winter, the temperature sensor 66 detects the cold draft and opens / closes the damper 63. And the fan 70 is operated to forcibly send the cold draft flowing into the peri-counter 52 into the return air chamber 23 from the opening 64 through the duct 60. When the air conditioner receives the cold air, the cold draft generated in the perimeter zone is quickly exhausted to the outside of the room 10, and the interior cooling amount is reduced. In that case, for example, the temperature T _P in the peri-counter 52 detected by the temperature sensor 66 is equal to the set temperature T _{S C} (for example, 2
Cold draft is detected in the room 1
You may make it exhaust to outside 0.

When the perimeter zones are present on a plurality of side surfaces of the room 10, it is preferable to reduce the perimeter load generated in the perimeter zones in each direction to save energy and improve comfort. That is, the slots 76 are opened above the perimeter zones of each direction, and the exhaust fan 78 and the temperature sensor 80 are arranged for each slot 76 of each direction. In addition, slots 65 are respectively opened on the upper surface of the peri-counter 52 arranged below the perimeter counter of each direction, and a temperature sensor 66 is provided for each peri-counter 52 of each direction.
An opening / closing damper 63, a duct 60, and a fan 70 for exhausting cold draft from inside the peri-counter 52 in each direction are provided.

In the warm season, for example, the hot air generated in the perimeter zones in each direction and rising is sucked from each slot 76 provided in the ceiling 22 of the chamber 10 and exhausted. In this case, the temperature sensor 80 provided in the slot 76 in each direction constantly measures the temperature of the hot air exhausted from each slot 76, and by the method described below,
The hot air exhaust is switched for each direction. That is, when the temperature T _{Ei of the} hot air exhausted from the slots 76 of each direction is equal to or lower than the set temperature T _SH (eg, 28 ° C.), the exhaust fan 78 of each direction is operated in the “medium” mode. On the other hand, when the solar radiation heat is predominant in any direction and the temperature T _{Ei of the} hot air exhausted from the slot 76 in any direction exceeds the set temperature T _SH (T _Ei > T _SH ), T _Ei
Operates the exhaust fan 78 in the highest direction in the “strong” mode, and operates the exhaust fans 78 in other directions in the “weak” mode. As a result, the perimeter load in the direction in which the heat of solar radiation is the largest can be efficiently discharged. The switching of the exhaust amount of the exhaust fan 78 in each direction may be controlled by using an inverter, or may be controlled by switching the tap of the motor. In addition, the total exhaust air volume in the perimeter zone is
It is set so as not to exceed the flow rate of the intake outside air OA supplied to the inside of 0.

Further, for example, in winter, cold draft generated in the perimeter zone of each direction is stored in the slot 65 provided on the upper surface of the perimeter counter 52 of each direction.
Exhaust to the outside of the room 10. In addition, when the room temperature is low, such as in winter, the heat obtained from solar radiation can be used for heating to save energy and improve comfort. That is, when the temperature T _{Ei of the} hot air exhausted from the slots 76 in each direction is equal to or lower than the set temperature T _SL (for example, 20 ° C.), the exhaust of the direction opposite to the highest direction of the temperature T _Ei of the hot air exhausted. The fan 78 is operated in the “strong” mode, and the exhaust fans 78 in other directions are operated in the “weak” mode. As a result, the warm air generated in the peripeter zone due to solar radiation spreads inside the room 10 along the ceiling 22. Further, the ceiling 22 is heated, and the heat is transferred to the living area by radiation. In addition, warm air is returned to the air conditioner 29
Therefore, the heating amount of the air conditioner 29 can be reduced. Similarly, the switching of the exhaust amount of the exhaust fan 78 in each direction may be controlled by using an inverter or the tap of the motor may be switched. In the case of using a fan-equipped outlet or a fan-equipped peri-counter, the air conditioning machine room 25 can be used as a retin chamber and the air conditioner 29 can be replaced with a heat exchanger. In that case, the return air duct 29a and the outside air duct 29b may be omitted.

Although one example of the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment. For example, the air volume of the supply air SA blown from the outlet 30 toward each work space 15 is adjusted by opening and closing the shutter 33 as described above, or by using a manual damper or VA.
You may use V. Further, the opening and closing of the shutter 33 may be performed by operating the motor 39 as described in FIG. 2, or may be performed by manually rotating the wing 37.
Further, the air supply SA is supplied from the outlet 30 to each work space 15
Instead of the above-mentioned pressure blowing method,
A fan may be attached to each outlet 30. Further, the ventilation surface 53 on the front surface of the peri-counter 52 may be omitted, and the air supply port 53 of the replacement ventilation air conditioning chamber 55 may be provided flush with the entire surface of the peri-counter.

[0053]

According to the present invention, the task area is air-conditioned by the floor blowing method, and the ambient area is air-conditioned by the displacement ventilation method. It can be energized.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration according to an embodiment of the present invention.

FIG. 2 is a perspective view (a) and an exploded view (b) of an outlet.

FIG. 3 is an explanatory diagram showing a state in which each wing is aligned at the same position and a shutter is opened.

FIG. 4 is an explanatory view showing a state in which the shutter is closed by shifting the position of each wing.

FIG. 5 is a plan view of an air supply chamber.

FIG. 6 is an explanatory diagram of a state in which a wall surface of a chamber (a wall face on a side surface where a letter chamber is not formed on a back portion) is viewed from the inside of the chamber.

FIG. 7 is an explanatory diagram of the inside of a peri-counter.

FIG. 8 is an explanatory diagram of fins attached to the air supply port on the front surface of the replacement ventilation chamber.

FIG. 9 is an explanatory diagram showing a relationship in a swirling direction of the supply air discharged from each of the supply ports arranged vertically and horizontally.

FIG. 10 is an explanatory diagram showing transfer of heat from the floor of the room or the ceiling of the lower floor with respect to the air supply moving in the air supply chamber,
(A) shows the cooling operation, and (b) shows the heating operation.

FIG. 11 is an explanatory diagram of a startup operation of the air conditioning system.

FIG. 12 is a graph showing the relationship between the distance from the air conditioner to the replacement ventilation chamber and the supply air temperature supplied to the replacement ventilation chamber during the startup operation of the air conditioning system,
(A) shows the cooling operation, and (b) shows the heating operation.

[Explanation of symbols]

OA outside air RA return air SA air supply 1 Air conditioning system 10 rooms 13 task area 14 Ambient area 15 working space 16 Partition 17 openings 20 floors 21 Air supply chamber 22 ceiling 23 Return Air Chamber 25 Retan chamber 29 air conditioner 30 outlet 38 Controller 45 Diffuser 55 Replacement Ventilation Chamber Fifty windows 52 Peri-counter 56 Air inlet 60 ducts 61, 63 open / close damper 65 slots 66 Temperature sensor 70 fans 75 Intake port 76 slots 78 exhaust fan 80 Temperature sensor

Claims (7)

[Claims] 1. A task / ambient air-conditioning method, characterized in that a task area formed in a room is air-conditioned by a floor blowing method, and an ambient area is air-conditioned by a displacement ventilation air-conditioning method. 2. The air-conditioning air supplied from the same air source as the air-conditioning air which supplies air to the task area from the double floor by a floor blowing method and supplies air to the task area to the task area The task / ambient air-conditioning method according to claim 1, wherein the air is introduced into the displacement ventilation chamber from the floor and air is supplied below the chamber. 3. The ambient area is supplied with air from a perimeter and hot air generated in the perimeter zone is forcibly exhausted outside the perimeter zone,
At that time, the exhaust air volume is determined based on the temperature of the hot air generated in the perimeter zone, and the cold draft generated in the perimeter zone is forcibly discharged outside the room below the perimeter zone. Or 2
Task / ambient air conditioning method described in. 4. The hot air generated in the perimeter zone is discharged from a plurality of locations, and when the room temperature is below a set temperature,
4. The task / ambient air conditioning method according to claim 3, wherein the exhaust amount is reduced in a portion where the temperature of the discharged hot air is high and the exhaust amount is increased in a portion where the temperature of the discharged hot air is low. 5. An air outlet for supplying air for performing task air conditioning to a task area formed in the room is arranged on the floor surface of the room, and air for performing displacement ventilation air conditioning in the ambient area formed in the room. The air supply port for supplying
A task / ambient air-conditioning system that has an intake port that exhausts indoor air installed on the ceiling of the room. 6. A peri-counter is arranged in the perimeter zone, and a displacement ventilation chamber equipped with fins for giving a swirling component to the blowing air flow is arranged in this peri-counter, and the air volume is adjusted at the outlet for supplying air to the task area. The task / ambient air-conditioning system according to claim 5, wherein a mechanism is mounted to supply the conditioned air supplied from the same air source to the task area and the ambient area. 7. The partition is arranged at a position separating the task area and the ambient area, and an opening for air circulation is provided at the foot of this partition.
Alternatively, the task / ambient air conditioning system according to Item 6.