JP7045220B2 - Air conditioning system - Google Patents

Description

In the present invention, the air-conditioned air cooled by the air conditioner is supplied from the air supply port to the air-conditioned space having the ceiling side area on which the lighting equipment is arranged, and the air in the air-conditioned space is supplied to the outside from the exhaust port. Regarding the air conditioning system that discharges to.

As a conventional air-conditioning system for air-conditioning air-conditioned spaces such as studios and theater stages that have a ceiling-side area above where lighting equipment is placed, to supply air-conditioned air cooled by an air conditioner to the air-conditioned space. It is known that the air supply port is arranged on the ceiling side and the exhaust port for discharging the air in the air-conditioned space to the outside is arranged on the floor side (see, for example, Patent Document 1).
That is, in this air-conditioning system, in the air-conditioned space, the air-conditioned air is supplied on the ceiling side and exhausted on the floor side, so that an air flow from the ceiling side to the floor side is generated.

Japanese Unexamined Patent Publication No. 06-250597

In air-conditioned spaces such as studios and theater stages, it is hoped that the air will not get hot in the ceiling area where many lighting devices are placed and that comfort will be improved in the lower area where people are active. It is rare.
However, in the air conditioning system described in Patent Document 1, since the ceiling side region and the lower side region are simultaneously air-conditioned by the air flow from the ceiling side to the floor side, the heat of the lighting equipment is transferred to the lower side region. The inflow reduces comfort in the lower region. Therefore, in order to suppress such deterioration of comfort, excessive supply of conditioned air on the ceiling side causes a problem that energy saving is deteriorated.

In view of this situation, the main object of the present invention is to supply the conditioned air cooled by the air conditioner to the conditioned space having the ceiling side area where the lighting equipment is arranged above from the air supply port, and to supply the conditioned air to the conditioned object. In an air-conditioning system that exhausts air from the space to the outside through an exhaust port, it is timely to prevent the air from becoming hot in the ceiling-side area where lighting equipment is placed and to improve comfort in the lower-side area where people are active. The point is to provide technology that can be realized.

The first characteristic configuration of the present invention is to supply air-conditioned air cooled by an air conditioner to an air-conditioned space having a ceiling-side area above which a lighting device is arranged from an air supply port, and air in the air-conditioned space. It is an air-conditioning system that discharges air from the exhaust port to the outside.
In the ceiling side region, a ceiling side air supply port as the air supply port and a ceiling side exhaust port as the exhaust port are arranged.
In the air-conditioned space, the lower air supply port as the air supply port is arranged in the lower area located on the lower side of the ceiling side area.
Ceiling-side region where conditioned air is supplied from the ceiling-side air supply port to the ceiling-side region and air in the ceiling-side region is discharged to the outside from the ceiling-side exhaust port. Air-conditioned operation means and
A lower region air conditioning operation means capable of performing a lower region air conditioning operation by supplying air conditioning air to the lower region from the lower air supply port to form a low temperature air layer in the lower region is provided. ,
Equipped with an air conditioning mode switching means that can switch the air conditioning mode to be executed from multiple air conditioning modes,
The plurality of air-conditioning modes include a first air-conditioning mode in which the lower-side region air-conditioning operation means executes the lower-side region air-conditioning operation while stopping the execution of the ceiling-side region air-conditioning operation by the ceiling-side region air-conditioning operation means. It includes a second air-conditioning mode in which the lower-side region air-conditioning operation means executes the lower-side region air-conditioning operation while the ceiling-side region air-conditioning operation means executes the ceiling-side region air-conditioning operation .

According to this configuration, in the lower region where people are active, which is located on the lower side of the ceiling side region in the air-conditioned space, the low-temperature air-conditioned air cooled by the air conditioner is performed by executing the lower region air-conditioning operation. Can be supplied directly from the lower air supply port to form a comfortable low temperature air layer.
On the other hand, for the ceiling-side area where the lighting equipment is arranged, by executing the ceiling-side area air-conditioning operation, the low-temperature air-conditioned air cooled by the air conditioner is directly supplied from the ceiling-side air supply port to the ceiling-side area. Can be maintained at a relatively low temperature.
Further, in this ceiling-side region air-conditioning operation, the relatively high-temperature air that has been heated by the heat generated by the lighting equipment in the ceiling-side region has a relatively low-temperature low-temperature air layer on the lower side thereof, so that the ceiling-side region is present. The relatively high temperature air that stays in the room can be discharged directly to the outside from the ceiling-side exhaust port. This makes it possible to suppress the inflow of relatively high temperature air from the ceiling side region to the lower region.

Therefore, by performing each of the ceiling side region air conditioning operation and the lower region air conditioning operation in a timely manner, it is possible to respond to fluctuations in the air conditioning load in each region while suppressing an increase in energy consumption. It is possible to timely realize the prevention of high temperature of the air in the ceiling side area where the lighting equipment is arranged and the improvement of comfort in the lower area where people are active.
Further, according to this configuration, when there is no or little heat generation of the lighting equipment in the ceiling side region, there is almost no inflow of relatively high temperature air from the ceiling side region to the lower region. Therefore, in such a state, by switching to the first air conditioning mode and executing the lower region air conditioning operation while stopping the execution of the ceiling side region air conditioning operation, the increase in the air conditioning load is suppressed and the energy consumption is reduced. A comfortable cold air layer can be formed in the lower region while reducing.
On the other hand, when the heat generation of the lighting equipment in the ceiling side region is large, the high temperature air in the ceiling side region is generated by switching to the second air conditioning mode and executing both the ceiling side region air conditioning operation and the lower region air conditioning operation. The low temperature air layer formed in the lower region can be maintained in a comfortable state while suppressing the inflow into the lower region on the lower side.
The second characteristic configuration of the present invention is to supply the air-conditioned air cooled by the air conditioner to the air-conditioned space having the ceiling side area on which the lighting equipment is arranged from the air supply port, and the air in the air-conditioned space. It is an air-conditioning system that discharges air from the exhaust port to the outside.
In the ceiling side region, a ceiling side air supply port as the air supply port and a ceiling side exhaust port as the exhaust port are arranged.
In the air-conditioned space, the lower air supply port as the air supply port is arranged in the lower area located on the lower side of the ceiling side area.
Ceiling-side region where conditioned air is supplied from the ceiling-side air supply port to the ceiling-side region and air in the ceiling-side region is discharged to the outside from the ceiling-side exhaust port. Air-conditioned operation means and
A lower region air conditioning operation means capable of performing a lower region air conditioning operation by supplying air conditioning air to the lower region from the lower air supply port to form a low temperature air layer in the lower region is provided. ,
A horizont was erected on the side of the lower region,
A space on the back side of the horizont is formed on the back side of the horizont, and an air supply port on the back side of the horizont as the air supply port is arranged above the space on the back side of the horizont.
The point is that the space on the back surface side of the horizont is provided with a horizont cooling operation means capable of performing a horizont cooling operation for cooling the horizont by supplying conditioned air from the air supply port on the back side of the horizont.
According to this configuration, in the lower region where people are active, which is located on the lower side of the ceiling side region in the air-conditioned space, the low-temperature air-conditioned air cooled by the air conditioner is performed by executing the lower region air-conditioning operation. Can be supplied directly from the lower air supply port to form a comfortable low temperature air layer.
On the other hand, for the ceiling-side area where the lighting equipment is arranged, by executing the ceiling-side area air-conditioning operation, the low-temperature air-conditioned air cooled by the air conditioner is directly supplied from the ceiling-side air supply port to the ceiling-side area. Can be maintained at a relatively low temperature.
Further, in this ceiling-side region air-conditioning operation, the relatively high-temperature air that has been heated by the heat generated by the lighting equipment in the ceiling-side region has a relatively low-temperature low-temperature air layer on the lower side thereof, so that the ceiling-side region is present. The relatively high temperature air that stays in the room can be discharged directly to the outside from the ceiling-side exhaust port. This makes it possible to suppress the inflow of relatively high temperature air from the ceiling side region to the lower region.
Therefore, by performing each of the ceiling side region air conditioning operation and the lower region air conditioning operation in a timely manner, it is possible to respond to fluctuations in the air conditioning load in each region while suppressing an increase in energy consumption. It is possible to timely realize the prevention of high temperature of the air in the ceiling side area where the lighting equipment is arranged and the improvement of comfort in the lower area where people are active.
Further, according to this configuration, when the horizont cooling operation is executed, the horizont is cooled by heat exchange with the low temperature air-conditioned air that descends downward from the upper horizont backside air supply port in the horizont backside space. Will be done. Therefore, the low-temperature air layer formed in the lower region on the surface side of the horizont can be maintained in a more comfortable state by the cold heat from the horizont on the side surface.
In the third feature configuration of the present invention, in addition to the second feature configuration, a horizont pit communicating with the space on the back surface side of the horizont is formed on the lower side of the horizont, and the exhaust port is formed in the horizont pit. As a Horizont Pit exhaust port is located,
The horizont cooling operation means is at a point where the air in the horizont pit is discharged to the outside from the horizont pit exhaust port in the horizont cooling operation.
According to this configuration, for the horizont pit where the lighting equipment is installed, by executing the horizont cooling operation, the relatively low temperature air-conditioned air that has descended from the space on the back side of the horizont is allowed to flow into the horizont pit, and the horizont pit is concerned. Can be maintained at a relatively low temperature. Further, in this horizont cooling operation, the relatively high temperature air heated by the heat generated by the lighting equipment in the horizont pit can be directly discharged to the outside from the horizont pit exhaust port arranged in the horizont pit. This makes it possible to suppress the inflow of relatively high temperature air from the horizont pit to the lower region.

The fourth characteristic configuration of the present invention is that the lower air supply port is arranged in a posture of blowing out conditioned air in the horizontal direction with respect to the lower region.

According to this configuration, in the lower region air conditioning operation, the air conditioning air is blown out horizontally from the lower air supply port to the lower region, so that the blown out air conditioning air does not escape upward and is satisfactorily blown out. It stays in the lower region. Therefore, it is possible to form a more comfortable low temperature air layer in the lower region by the stagnant conditioned air.

In the fifth characteristic configuration of the present invention, an underfloor space is formed under the floor surface, and the underfloor space is formed.
The point is that the lower region air conditioning operating means cools the floor surface by allowing air conditioning air before being supplied to the lower air supply port to flow through the underfloor space in the lower region air conditioning operation.

According to this configuration, by executing the lower region air conditioning operation, the floor surface is cooled by heat exchange with the low temperature air conditioning air flowing through the underfloor space. Therefore, the low-temperature air layer formed in the lower region on the floor surface can be maintained in a more comfortable state by the cold heat from the floor surface. Further, in such a lower region air conditioning operation, since the low temperature air layer is maintained on the floor surface, heat dissipation from the floor surface is suppressed, and the air conditioning air flowing through the underfloor space on the lower surface side thereof. The temperature rise is suppressed. Therefore, relatively low temperature conditioned air can be supplied from the underfloor space to the lower air supply port, and the conditioned air is supplied to the lower region on the floor surface to satisfactorily form the low temperature air layer. be able to.

Schematic block diagram of the air conditioning system of this embodiment

An embodiment of the present invention will be described with reference to FIG.
The air-conditioning system of the present embodiment (hereinafter referred to as "the main air-conditioning system") supplies air-conditioned air SA cooled by the air-conditioning machine 1 in order to air-condition the air-conditioned space A such as a stage of a studio or a theater. The air in the air-conditioned space A is configured to be discharged to the outside from the exhaust ports 7a and 30a while being supplied from the air ports 3a, 3b, 4a, 5a and 6a. In the present embodiment, a part or all of the air discharged from the exhaust ports 7a and 30a is returned to the air conditioner 1 as a return air RA, but it may be configured to be discharged to the outside as an exhaust gas. ..

A catwalk 40 is provided in the ceiling side area A1 located on the upper side in the air-conditioned space A configured as such a studio or the like, and a plurality of lighting devices 45 are fixed to the catwalk 40. Is placed.

On the other hand, in the air-conditioned space A, the lower area A2 located on the lower side of the ceiling side area A1 is an area where people are active, and a horizont 20 such as a wall plate or a wall curtain as a background is located on the side thereof. It is erected.
On the back surface side of the horizont 20 that defines the side surface of the lower region A2, a horizont back surface side space 21 is formed between the horizont 20 and the wall surface. A horizont pit 30 having a concave shape below the floor surface 11 is provided on the side of the floor surface 11 adjacent to the lower end portion of the horizont 20, and the horizont pit 30 also has a plurality of lighting devices 35. Is placed.
At the lower end of the horizont 20, a communication port 21a for communicating the horizont back surface side space 21 and the horizont pit 30 is formed.
Further, an underfloor space 12 is formed below the floor surface 11 of the lower region A2.

The air conditioner 1 cools air such as return air RA and outside air to a desired temperature by heat exchange with a refrigerant or the like to generate low-temperature air-conditioned air SA. The air-conditioned air SA generated by the air conditioner 1 has air supply ports 3a, 3b, 4a, 5a, which are arranged in the air-conditioned space A from the air supply duct 2 through a plurality of air supply ducts 3, 4, 5, and 6. It is supplied to 6a and 12a.

The ceiling-side air supply duct 3 is an air supply duct connected to the ceiling-side air supply port 3a and the illuminated air supply port 3b arranged in the ceiling-side area A1. The ceiling-side air supply port 3a and the illuminated air supply port 3b are provided in a posture of blowing out the conditioned air SA downward. Further, the ceiling side air supply port 3a is provided at a position higher than the lighting device 45, while the under-illumination air supply port 3b is provided at the same height as or slightly lower than the lighting device 45. ing.
An opening / closing damper V1 capable of intermittently supplying air-conditioned air SA from the air supply duct 2 to the ceiling side air supply duct 3 is provided at the connection portion of the ceiling side air supply duct 3 with respect to the air supply duct 2 on the air conditioner 1 side. ing.
Then, the conditioned air SA supplied from the air conditioner 1 to the ceiling side air supply duct 3 by opening the opening / closing damper V1 is blown out from the ceiling side air supply port 3a toward the lighting device 45, and at the same time. It is blown out from the air supply port 3b under illumination toward the lower region A2.

The horizont side air supply duct 4 is an air supply duct connected to the horizont back side air supply port 4a that opens on the upper side of the horizont back side space 21.
An opening / closing damper V4 capable of intermittently supplying air-conditioned air SA from the air supply duct 2 to the horizontal air supply duct 4 is provided at the connection portion of the horizontal air supply duct 4 to the air supply duct 2 on the air conditioner 1 side. ing.
Then, the conditioned air SA supplied from the air conditioner 1 to the horizont side air supply duct 4 by opening the opening / closing damper V4 is supplied from the horizont back side air supply port 4a to the upper side of the horizont back side space 21. Will be done.
Further, the conditioned air SA supplied to the upper side of the horizont back surface side space 21 naturally descends from the space 21 because it is at a low temperature. Then, the conditioned air SA that has reached the lower side of the horizont back surface side space 21 flows into the horizont pit 30 through the communication port 21a.

The underfloor air supply duct 5 is an air supply duct connected to the underfloor air supply port 5a that opens in the underfloor space 12.
An opening / closing damper V2 capable of intermittently supplying air-conditioned air SA from the air supply duct 2 to the underfloor air supply duct 5 is provided at the connection portion of the underfloor air supply duct 5 with respect to the air supply duct 2 on the air conditioner 1 side. ing.
Then, the conditioned air SA supplied from the air conditioner 1 to the underfloor air supply duct 5 by opening the opening / closing damper V2 is supplied to the underfloor space 12 from the underfloor air supply port 5a.
Further, the floor surface 11 is provided with a floor surface air supply port 11a (an example of a lower air supply port). Then, the conditioned air SA that has passed through the underfloor space 12 by opening the opening / closing damper V2 is supplied to the floor air supply port 11a, and is supplied from the floor air supply port 11a to the lower region A2. Is blown out.

The task air-conditioning air supply duct 6 is an air supply duct connected to the task air-conditioning nozzle 6A installed in the lower region A2. At the tip of the task air-conditioning nozzle 6A, a task air-conditioning air supply port 6a that opens in the horizontal direction is provided.
At the connection site of the task air conditioning air supply duct 6 to the air supply duct 2 on the air conditioner 1 side, an opening / closing damper V3 capable of intermittently supplying the air conditioning air SA from the air supply duct 2 to the task air conditioning air supply duct 6 is provided. It is provided.
Then, the air-conditioned air SA supplied from the air conditioner 1 to the task air-conditioning air supply duct 6 by opening the opening / closing damper V3 is supplied to the task air-conditioning air supply port 6a through the task air-conditioning nozzle 6A. , The task air-conditioning air supply port 6a is blown out in the horizontal direction with respect to the lower region A2.
Further, the task air-conditioning nozzle 6A is configured so that the installation position, the direction of the task air-conditioning air supply port 6a, and the like can be arbitrarily changed.

On the other hand, the air in the air-conditioned space A is discharged to the outside as the return air RA through the exhaust ducts 7 and 8.
The ceiling-side exhaust duct 7 is an exhaust duct connected to the ceiling-side exhaust port 7a arranged in the ceiling-side region A1. Further, the ceiling side exhaust duct 7 is provided with an opening / closing damper V5 capable of intermittently discharging the return air RA from the ceiling side exhaust duct 7 to the outside.
Then, by opening the opening / closing damper V5, the air in the ceiling side region A1 is taken out from the ceiling side exhaust port 7a to the ceiling side exhaust duct 7 and discharged to the outside as the return air RA.
The ceiling-side exhaust port 7a is provided at a position higher than the ceiling-side air supply port 3a. As a result, it is possible to prevent the conditioned air SA blown downward from the ceiling side air supply port 3a from being directly discharged from the ceiling side exhaust port 7a.

The floor-side exhaust duct 8 is an exhaust duct connected to the horizont pit exhaust port 30a provided in the horizont pit 30. Specifically, the horizont pit exhaust port 30a is open to the exhaust space 13 formed on the lower side of the underfloor space 12, and the floor side exhaust duct 8 is connected to the exhaust space 13.
Further, the floor-side exhaust duct 8 is provided with an opening / closing damper V6 capable of intermittently discharging the return air RA from the floor-side exhaust duct 8 to the outside.
Then, by opening the opening / closing damper V6, the air in the horizont pit 30 is taken out from the horizont pit exhaust port 30a to the floor side exhaust duct 8 through the exhaust space 13, and is discharged to the outside as a return air RA. To.

The air conditioning system is provided with a control unit 50 for controlling the operation, and the control unit 50 can execute a predetermined ceiling side area air conditioning operation by executing a predetermined computer program. The area air-conditioning operation means 51, the lower area air-conditioning operation means 52 capable of executing a predetermined lower area air-conditioning operation, the horizontal cooling operation means 53 capable of executing a predetermined horizontal cooling operation, and the predetermined air-conditioning mode switching process are executed. It functions as a possible air conditioning mode switching means 54.
Hereinafter, details of the operation and processing executed by each of the means 51 to 54 will be described.

[Ceiling side area air conditioning operation]
The ceiling-side region air-conditioning operating means 51 is in a form in which the opening / closing damper V1 and the opening / closing damper V5 are in an open state, and supplies air-conditioned air SA to the ceiling-side region A1 from the ceiling-side air supply port 3a, and also supplies the air-conditioning air SA to the ceiling-side region A1. The ceiling-side region air-conditioning operation is configured to enable the air to be discharged to the outside from the ceiling-side exhaust port 7a.
By executing such a ceiling-side region air-conditioning operation, the low-temperature air-conditioned air SA cooled by the air conditioner 1 is directly supplied from the ceiling-side air supply port 3a in the ceiling-side region A1 in which the lighting device 45 is arranged. To. As a result, the ceiling side region A1 is maintained at a relatively low temperature even when the lighting device 45 operates and generates heat.

Further, the relatively high temperature air heated by the heat generated by the lighting device 45 in the ceiling side region A1 is directly discharged to the outside from the ceiling side exhaust port 7a. As a result, the air in the ceiling side region A1 whose temperature has become relatively high due to the heat generated by the lighting device 45 is suppressed from flowing into the lower region A2 on the lower side thereof. At this time, the exhaust amount from the ceiling side exhaust port 7a is set to be equal to or larger than the air supply amount of the conditioned air SA from the ceiling side air supply port 3a. As a result, substantially all of the air heated by the heat generated by the lighting device 45 in the ceiling side region A can be discharged to the outside from the ceiling side air supply port 3a, and the air can be discharged from the ceiling side region A1 to the lower region A2. The inflow of high temperature air can be appropriately prevented.
Further, in this ceiling side region air conditioning operation, the air conditioning air SA can be blown out from the air supply port 3b under the illumination. The conditioned air SA blown out from the air supply port 3b under illumination is supplied to the lower region A2 at a low temperature without being affected by the heat generated by the lighting device 45. This improves comfort in the lower region A2.

[Lower area air conditioning operation]
The lower region air conditioning operating means 52 has an open / close damper V2 and an open / close damper V3 in an open state, and has a task air conditioning air supply port 6a or a floor air supply port as a lower air supply port with respect to the lower region A2. It is configured to be able to execute the lower region air conditioning operation in which the air conditioning air SA is supplied from the port 11a.
By executing such a lower region air conditioning operation, the low temperature air conditioning air SA supplied from the lower air supply ports 6a and 11a stays on the floor surface 11 and stays in the lower region A2. A comfortable cold air layer composed of cold air is formed.
Further, since the task air-conditioning air supply port 6a is arranged so as to blow out the air-conditioning air SA in the horizontal direction with respect to the lower region A2, the task air-conditioning air supply port 6a is arranged with respect to the lower region A2. The conditioned air SA blown out in the horizontal direction satisfactorily stays in the lower region A2 without escaping upward. Therefore, a more comfortable low temperature air layer is formed in the lower region A2.

Further, in this lower region air-conditioning operation, the air-conditioned air SA before being supplied to the floor air supply port 11a flows through the underfloor space 12 to cool the floor surface 11. Therefore, the low temperature air layer formed in the lower region A2 on the floor surface 11 is maintained in a comfortable state at a lower temperature by the cold heat from the floor surface 11. Further, since the low temperature air layer is maintained on the floor surface 11, the temperature rise of the floor surface 11 is suppressed, and the temperature rise of the conditioned air SA flowing through the underfloor space 12 formed under the floor surface 11 is also suppressed. Will be done. Therefore, the conditioned air SA supplied from the underfloor space 12 to the floor air supply port 11a can be kept at a relatively low temperature, and as a result, the conditioned air SA blown out from the floor air supply port 11a is formed. The low temperature air layer can be kept comfortable.
The floor air supply port 11a may also be configured to blow out the air conditioning air SA in the horizontal direction with respect to the lower region A2, similarly to the task air conditioning air supply port 6a.

[Horizont cooling operation]
The horizont cooling operation means 53 performs a horizont cooling operation in which the opening / closing damper V4 is opened, and air-conditioned air SA is supplied from the horizont backside air supply port 4a to the horizont backside space 21 to cool the horizont 20. It is configured to be viable. Further, the horizont cooling operation means 53 is configured to discharge the air of the horizont pit 30 to the outside from the horizont pit exhaust port 30a in a form in which the opening / closing damper V6 is opened in the horizont cooling operation.
By executing such a horizont cooling operation, the horizont 20 is cooled by heat exchange with the low-temperature air-conditioned air SA that descends from the upper side to the lower side of the horizont back surface side space 21. Then, the low-temperature air layer formed in the lower region A2 on the surface side of the horizont 20 is maintained in a more comfortable state by the cold heat from the horizont 20 on the side surface.

By executing such a horizont cooling operation, the relatively low temperature air-conditioned air SA that has descended from the horizont backside space 21 flows into the horizont pit 30 through the communication port 21a. As a result, even when the lighting device 35 provided in the horizont pit 30 operates and generates heat, the horizont pit 30 is maintained at a relatively low temperature. Further, the relatively high temperature air heated by the heat generated by the lighting device 35 in the horizont pit 30 is directly discharged to the outside from the horizont pit exhaust port 30a. As a result, the air in the horizont pit 30, which has become relatively hot due to the heat generated by the lighting device 35, is suppressed from flowing into the lower region A2. At this time, the exhaust amount from the horizont pit exhaust port 30a is set to be equal to or larger than the air supply amount of the conditioned air SA from the horizont back side air supply port 4a. As a result, substantially all of the air heated by the heat generated by the lighting equipment 35 in the horizont pit 30 can be discharged to the outside from the horizont pit exhaust port 30a, and the high temperature air from the horizont pit 30 to the lower region A2 can be discharged to the outside. The outflow can be appropriately prevented.

Further, the cold air on the surface of the horizont 20 naturally descends along the surface of the horizont 20 and reaches the upper part of the horizont pit 30. When the upper surface of the horizont pit 30 is blocked by a transparent plate or the like, the cold air that has fallen along the surface of the horizont 20 flows into the upper side of the floor surface 11 along the upper surface of the horizont pit 30, and the floor is concerned. It can be merged with the low temperature air layer formed on the surface 11. On the other hand, when the upper surface of the horizont pit 30 is open, the cold air that has fallen along the horizont 20 can flow into the horizont pit 30.
In the present embodiment, the air of the horizont pit 30 is configured to be discharged to the outside from the horizont pit exhaust port 30a, but a part of the air is reduced by reducing the exhaust amount from the horizont pit exhaust port 30a. Alternatively, the entire structure may be configured so as not to be discharged from the horizont pit exhaust port 30a but to be discharged to the lower region A2.

[Air conditioning mode switching process]
The air conditioning mode switching means 54 is configured to be able to execute an air conditioning mode switching process for switching an air conditioning mode to be executed from a plurality of air conditioning modes based on an input operation by the user.
Although the details will be described later, such a plurality of air conditioning modes include a normal air conditioning mode (an example of a second air conditioning mode), an exhaust mode, and a standby air conditioning mode (an example of a first air conditioning mode). The details of each mode will be described below.

(Normal air conditioning mode)
In the normal air conditioning mode (an example of the second air conditioning mode), the ceiling side region air conditioning operation is executed by the ceiling side region air conditioning operating means 51, the lower region air conditioning operation is executed by the lower region air conditioning operating means 52, and the horizont cooling operation is performed. This is an air conditioning mode for executing the horizont cooling operation by the means 53. Such a normal air conditioning mode is suitably selected for the purpose of preventing the temperature of the air from becoming high in the ceiling region A1 where the lighting equipment 45 operates and improving the comfort in the lower region A where a person is active.

Further, as the normal air conditioning mode, a low load air conditioning mode and a high load air conditioning mode that can be selected in a timely manner according to the air conditioning load in the lower region A2 are provided.

The low-load air-conditioning mode corresponds to a decrease in the air-conditioning load in the lower region A2 by stopping the blowing of the air-conditioning air SA from the air supply port 3b under illumination or setting the temperature of the air-conditioning air SA higher. It is configured as an air conditioning mode. Then, this low load air conditioning mode is suitably selected when the load is low when there are few people active in the lower region A2, for example, when the audience is not mobilized.

On the other hand, in the high load air conditioning mode, the air conditioning air SA is blown out from the air supply port 3b under the illumination, and the temperature of the air conditioning air SA is set low to cope with the increase in the air conditioning load in the lower region A2. It is configured as an air conditioning mode. Then, this high load air conditioning mode is suitably selected when the load is high when there are many people who are active in the lower region A2, for example, when mobilizing spectators.

(Exhaust mode)
In the exhaust mode, the ceiling side region air conditioning operation by the ceiling side region air conditioning operating means 51 is executed, the lower region air conditioning operation by the lower region air conditioning operating means 52 and the horizontal cooling operation by the horizont cooling operation means 53 are stopped, respectively, and the horizont This is an air conditioning mode for executing a horizontal pit exhaust operation in which the air in the pit 30 is discharged to the outside from the horizontal pit exhaust port 30a. Such an exhaust mode is suitably selected for the purpose of preventing the temperature of the air from becoming high in the ceiling region A1 in which the lighting device 45 operates, and exhausting the smoke generated by the effect or the like.

(Standby air conditioning mode)
In the standby air-conditioning mode (an example of the first air-conditioning mode), the lower-side area air-conditioning operation means 52 while stopping the ceiling-side area air-conditioning operation by the ceiling-side area air-conditioning operation means 51 and the horizont cooling operation by the horizont cooling operation means 53, respectively. It is an air conditioning mode that executes the lower area air conditioning operation by. Such a standby air conditioning mode is suitably selected for the purpose of improving comfort in the lower region A, for example, in the preparation stage before the start of recording.
Further, in the lower region air conditioning operation executed in this standby air conditioning mode, by opening the opening / closing damper V2, the opening / closing damper V3 is closed while supplying the air conditioning air SA to the underfloor space 12. As a result, the supply of air-conditioned air SA to the task air-conditioning air supply port 6a is stopped.
That is, in this standby air-conditioning mode, since there are almost no people in the lower region A2 before the start of recording, the direct air-conditioning air SA blowout from the task air-conditioning air supply port 6a to the person is stopped. .. On the other hand, since the conditioned air SA is supplied to the underfloor space 12 and the floor surface 11 is sufficiently cooled, the comfort can be quickly improved in the normal air-conditioned mode selected at the time of the next recording.

[Another Embodiment]
Other embodiments of the present invention will be described. It should be noted that the configurations of the respective embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.
(1) In the above embodiment, in order to form a more comfortable low temperature air layer in the lower region A2, the conditioned air SA is configured to be blown out in the horizontal direction by the lower air supply port 6a. The blowing direction of the conditioned air SA by the lower air supply port 6a may be changed within the range in which the air layer is formed.

(2) In the above embodiment, a plurality of air conditioning modes such as a standby air conditioning mode and a normal air conditioning mode are set in advance, and the air conditioning mode switching means 54 is configured to switch the air conditioning mode to be executed from the plurality of air conditioning modes. Of course, you may set another type of air conditioning mode. Further, instead of using such an air conditioning mode switching means 54, the ceiling side area air conditioning operation by the ceiling side area air conditioning operation means 51, the lower area air conditioning operation by the lower area air conditioning operation means 52, and the horizont cooling operation means 53. For each of the various operations such as the horizont cooling operation by the above, the execution and the stop may be individually switched.

(3) In the above embodiment, an example in which the horizont 20 is provided on the side of the lower region A2 and the horizont pit 30 is provided at a position adjacent to the lower end portion of the horizont 20 has been described. And even when the horizont pit does not exist, the air conditioning system according to the present invention can be applied.

(4) In the above embodiment, the floor surface 11 is cooled by passing the conditioned air SA before being supplied to the lower air supply port 6a to the underfloor space 12, but the air conditioner 1 is used. The cooled conditioned air SA may be configured to be supplied to the lower air supply port 6a without flowing through the underfloor space 12.

(5) In the above embodiment, the conditioned air SA after passing through the underfloor space 12 is configured to be supplied from the floor surface air supply port 11a to the lower region A2, but after passing through the underfloor space 12. The conditioned air SA may be configured to be directly discharged to the outside without being supplied to the lower region A2.

1 Air conditioner 3a Ceiling side air supply port 4a Horizont back side air supply port 6a Task air conditioning air supply port (lower side air supply port)
7a Ceiling side exhaust port 11 Floor surface 11a Floor surface air supply port (lower side air supply port)
12 Underfloor space 20 Horizont 21 Horizont backside space 21a Communication port 30 Horizont pit 30a Horizont pit exhaust port 35 Lighting equipment 45 Lighting equipment 51 Ceiling side area air conditioning operation means 52 Lower area air conditioning operation means 53 Horizont cooling operation means 54 Air conditioning mode switching Means A Air-conditioned space A1 Ceiling side area A2 Lower area SA Air-conditioned air

Claims (5)

Air conditioning that discharges the air in the air-conditioned space to the outside from the exhaust port while supplying the air-conditioned air cooled by the air conditioner to the air-conditioned space that has the ceiling side area above where the lighting equipment is placed from the air supply port. It ’s a system,
In the ceiling side region, a ceiling side air supply port as the air supply port and a ceiling side exhaust port as the exhaust port are arranged.
In the air-conditioned space, the lower air supply port as the air supply port is arranged in the lower area located on the lower side of the ceiling side area.
Ceiling-side region where conditioned air is supplied from the ceiling-side air supply port to the ceiling-side region and air in the ceiling-side region is discharged to the outside from the ceiling-side exhaust port. Air-conditioned operation means and
A lower region air conditioning operation means capable of performing a lower region air conditioning operation by supplying air conditioning air to the lower region from the lower air supply port to form a low temperature air layer in the lower region is provided. ,
Equipped with an air conditioning mode switching means that can switch the air conditioning mode to be executed from multiple air conditioning modes,
The plurality of air-conditioning modes include a first air-conditioning mode in which the lower-side region air-conditioning operation means executes the lower-side region air-conditioning operation while stopping the execution of the ceiling-side region air-conditioning operation by the ceiling-side region air-conditioning operation means. An air conditioning system including a second air conditioning mode in which the lower region air conditioning operation means executes the lower region air conditioning operation while the ceiling side region air conditioning operation means executes the ceiling side region air conditioning operation . Air conditioning that discharges the air in the air-conditioned space to the outside from the exhaust port while supplying the air-conditioned air cooled by the air conditioner to the air-conditioned space that has the ceiling side area above where the lighting equipment is placed from the air supply port. It ’s a system,
In the ceiling side region, a ceiling side air supply port as the air supply port and a ceiling side exhaust port as the exhaust port are arranged.
In the air-conditioned space, the lower air supply port as the air supply port is arranged in the lower area located on the lower side of the ceiling side area.
Ceiling-side region where conditioned air is supplied from the ceiling-side air supply port to the ceiling-side region and air in the ceiling-side region is discharged to the outside from the ceiling-side exhaust port. Air-conditioned operation means and
A lower region air conditioning operation means capable of performing a lower region air conditioning operation by supplying air conditioning air to the lower region from the lower air supply port to form a low temperature air layer in the lower region is provided. ,
A horizont was erected on the side of the lower region,
A space on the back side of the horizont is formed on the back side of the horizont, and an air supply port on the back side of the horizont as the air supply port is arranged above the space on the back side of the horizont.
An air-conditioning system provided with a horizont cooling operation means capable of performing a horizont cooling operation for cooling the horizont by supplying conditioned air to the horizont backside space from the horizont backside air supply port . A horizont pit communicating with the space on the back surface side of the horizont is formed on the lower side of the horizont, and a horizont pit exhaust port as the exhaust port is arranged in the horizont pit.
The air conditioning system according to claim 2 , wherein the horizont cooling operation means discharges air from the horizont pit to the outside through the horizont pit exhaust port in the horizont cooling operation. The air-conditioning system according to any one of claims 1 to 3 , wherein the lower air supply port is arranged in a posture of blowing air-conditioned air in a horizontal direction with respect to the lower region. An underfloor space is formed under the floor surface,
Claim 1 to the lower area air-conditioning operating means, in the lower area air-conditioning operation, cooling the floor surface by allowing air-conditioned air before being supplied to the lower air supply port to flow through the underfloor space. The air conditioning system according to any one of 4 .

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