JPH0694939B2 - Air conditioning method and device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air conditioning system using floor and ceiling surfaces.

2. Description of the Related Art Conventionally, in the air conditioning of rooms such as office buildings, shops, and factories, cool air or warm air is circulated by an air conditioner installed in the room, or cold air or warm air is supplied from the air supply port provided on the ceiling. The central heating and cooling system was used to supply

In recent years, mainly in office buildings, the space under the floor is used as a wiring space by a free access floor (double floor). Therefore, the air-conditioning duct space is separately provided on the ceiling and the wiring space is separately provided on the floor surface, which causes a large spatial loss. Moreover,
In such an air conditioning system, the entire room is not always uniformly heated and cooled, and in some places it is too cold,
It was too hot, there was a problem in terms of habitability, and it was not always satisfactory in terms of air conditioning efficiency.

Furthermore, when a duct is installed on the ceiling, it is difficult to clean and maintain, and a large amount of cost is required for maintenance.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention provides an air conditioning system that enables uniform air conditioning in the entire room, is comfortable, has good air conditioning efficiency and space efficiency depending on the mode of implementation, and is easy to maintain. To do.

According to the first air conditioning method of the present invention, the air from the air conditioner is blown into the room from the air supply port provided on the floor surface, while the room air is exhausted from the exhaust port provided on the ceiling surface, It is characterized in that part of the indoor air is also exhausted from the exhaust port provided on the surface.

A second air conditioning method of the present invention blows air from an air conditioner into a room from an air supply port provided on a floor surface, while using almost the entire ceiling surface as an exhaust port, and exhausts indoor air from the exhaust port. It is characterized by exhausting.

In the third air conditioning method of the present invention, the air from the air conditioner is blown into the room from the air supply port provided on the ceiling surface, while the room air is exhausted from the exhaust port provided on the floor surface, and is provided on the ceiling surface. It is also characterized in that part of the indoor air is exhausted from the exhaust port.

According to a fourth air conditioning method of the present invention, air is blown from an air conditioner into a room through an air supply port provided on a ceiling surface, while almost the entire floor surface is used as an exhaust port, and indoor air is exhausted through the exhaust port. It is characterized by doing.

Furthermore, the air conditioner of the present invention supplies air from the air conditioner into the room, and in an air conditioner that exhausts and circulates the air in the room, a floor surface supply / exhaust port provided on the floor surface of the room, A ceiling surface air supply / exhaust port provided on the ceiling surface of the room, an air supply / exhaust duct for supplying / exhausting air to / from both the air supply / exhaust ports, and a switching device for switching air supply / exhaust to the both air supply / exhaust ports And having.

Hereinafter, the present invention will be described in more detail.

FIG. 1 is a schematic diagram for explaining an embodiment of the present invention. The interior 71 is partitioned in the height direction by a ceiling finishing plate 53 and a floor plate 39, and the space above the ceiling 57 and the space under the floor are respectively separated.
Forming 41.

45 and 61 show concrete slabs. The floor board 39 is composed of a floor base material 37 and a floor finish material 35, and is supported by columns 43 to form a double floor. On the other hand, the ceiling finishing plate 53
Are suspended by a suspension frame 59.

A floor air supply port 31 is formed at an appropriate place on the floor surface, and the floor air supply port 31 is connected to the air conditioner 11 via a floor air supply duct 21. Further, the floor plate 39 is configured to allow air to flow in the thickness direction.

As the floor plate 39, air can flow in the thickness direction, and
A floor having the required strength and a beautiful appearance is used. Such a floor board 39 is, for example, a perforated board made of aluminum die-cast as the floor base material 37 to have strength, and as the floor finish material 35, a carpet tile or a continuous tile made by planting piles on a porous base cloth. A porous sheet may be used. If necessary, a punching metal plate may be interposed between the perforated plate and the carpet tile or the continuous porous sheet.

In this way, by constructing the surface of the floor board 39 from the breathable floor finishing material, the room 71 having a comfortable living space or office space is realized. Moreover, by constructing the floor finish material 35 from a breathable material, the air in the room 71 can be circulated / exhausted to the outside through the floor plate 39 → underfloor space 41 → floor exhaust duct 23 as described later. It is also possible to expect the effect of the floor finishing material 35 as a filter.

On the other hand, a ceiling exhaust port 51 is provided at an appropriate place on the ceiling surface. The ceiling exhaust port 51 is connected to the air conditioner 11 via the ceiling exhaust duct 25. In addition, the ceiling sub-exhaust duct 27 is connected to the space above the ceiling 57, and the air in the room 71 can be circulated and exhausted through the ceiling finishing plate 53 and the space above the ceiling 57. A cloth / nonwoven fabric, a porous plate, or the like is used as such a breathable ceiling finishing plate 53, and these can also be expected to have an effect as a filter.

The switching devices 15, 17, 19 switch the flow direction of the circulating air by the air conditioner 11.

When the air conditioner 11 is operated in the state shown in FIG. 1, the air conditioner 11
The warm air or the cold air from the air passes through the air supply pipe 12, the switching device 15, and the floor air supply duct 21 and is blown into the room 71 from the floor air supply port 31 as shown by an arrow 73. On the other hand, the air in the room 71 is
As shown by, the air is sucked from the ceiling exhaust port 51 through the ceiling exhaust duct 25, the switching device 17, the flow rate control device 13, and the exhaust pipe 14 by the air conditioner 11. At the same time, a part of the air in the room 71 passes through the floor plate 39 in the thickness direction as shown by an arrow 77,
The air enters into the underfloor space 41, and is exhausted and circulated by the air conditioner 11 via the floor auxiliary exhaust duct 23, the switching device 19, the flow rate control device 13, and the exhaust pipe 14.

In this way, by supplying warm air or cold air from the floor surface to the room 71 and exhausting it from the ceiling surface, and by exhausting part of the air in the room 71 also from the floor surface, inside the room 71, Warm or cool air from the air conditioner 11 is spread all over, warm air or cold air flows only in a specific portion of the room 71, blows through, or accumulation of air is prevented from occurring in a specific portion of the room 71. Almost uniform and efficient air conditioning effect can be obtained. In particular, even in the room, the floor plate side becomes a main place for activities such as human feet and desk work, and a circulating air flow is generated in this part, so that a comfortable air conditioning effect can be obtained.

In addition, in the embodiment shown in FIG. 1, the case where almost the entire surface of the floor plate 39 except the floor air supply port 31 is used as the exhaust surface of the indoor air is shown. Alternatively, in relation to the exhaust port of the ceiling plate, only part of the floor plate 39 may be used as the exhaust surface or the exhaust port.

The ratio of the exhaust amount from the ceiling exhaust duct 25 to the exhaust amount from the floor sub-exhaust duct 23, that is, the exhaust ratio between the ceiling surface and the floor surface can be adjusted by the flow rate control device 13. As for this ratio, it is desirable that the ceiling surface is 40 to 20%, the floor surface is 60 to 80%, preferably the ceiling surface is 35 to 25% and the floor surface is 65 to 75%.

Further, although FIG. 1 shows the case where the exhaust from the ceiling surface is performed only from the ceiling exhaust port 51, the ceiling finishing plate 53 → the space behind the ceiling
57 → It may be exhausted from the ceiling auxiliary exhaust duct 27,
Alternatively, both can be used together. When the space above the ceiling 57 is used, the duct becomes unnecessary by using the space as a chamber. Therefore, in the case of only this method, the duct space is not necessary, and the space can be effectively used. This also applies to the embodiment shown in FIG.

FIG. 2 is a schematic view showing another embodiment of the present invention, except that the switching devices 15, 17 and 19 are switched so that the air flow is completely opposite to that shown in FIG. This is similar to the case shown in FIG. In addition, the name of each member will be changed as shown in Table 1 below in accordance with the reverse supply and exhaust.

(1) Air supply to the room Air conditioner 11 → Air supply pipe 12 → Switching device 15 → Ceiling air supply duct 25
→ Ceiling air inlet 51 → Room 71 (2) Exhaust from room (and / or combination below) Room 71 → Floor exhaust port 31 → Floor exhaust duct 21 → Switching device 17 →
Flow control device 13 → Exhaust pipe 14 → Air conditioner 11 Room 71 → Ceiling finishing plate 53 → Ceiling space 57 → Ceiling auxiliary exhaust duct 27 → Switching device 19 → Flow control device 13 → Exhaust pipe 14 → Air conditioner 11 Room 71 → Floor plate 39 → underfloor space 41 → floor auxiliary exhaust duct 23 → air conditioner 11 (however, the floor auxiliary exhaust duct 23 → exhaust path of the air conditioner 11 is not shown) Also in the embodiment shown in FIG. 2, the warm air or the cool air from the air conditioner 11 can be distributed throughout the room, and the room can be air-conditioned substantially uniformly.

As described above, when the air conditioner shown in FIG. 1 or 2 is used, the flow of air can be reversed in accordance with summer, winter, etc. by switching the flow path using the same device. it can. Of course, each of these may be a single system independent of the switching method.

FIG. 3 is an explanatory view showing another embodiment of the present invention, and the apparatus / equipment itself is the same as FIG. 1 and FIG. 2 except that the exhaust system is one system.

In FIG. 3, air flows from the air conditioner 11 into the room 71 through the air supply pipe 12, the switching device 15, the floor air supply duct 21, and the floor air supply port 31.
Sent like 73. On the other hand, the room air passes through the ceiling finishing plate 53 from almost the entire ceiling surface, and is exhausted and circulated by the air conditioner 11 through the space above the ceiling 57 → the ceiling exhaust duct 27 → the switching device 19 → the exhaust pipe 14.

FIG. 4 is another explanatory view showing the air conditioning method of the present invention, and the apparatus / equipment itself is exactly the same as FIG. In Figure 4,
Air conditioner 11 to air supply pipe 12 → switching device 15 → ceiling air supply duct 25
→ Air is supplied to the room 71 through the ceiling air supply port 51. On the other hand, the room air passes through the floor plate 39 from almost the entire floor surface,
It is exhausted and circulated by the air conditioner 11 via the underfloor space 41 → floor exhaust duct 23 → switching device 19 → exhaust pipe 14.

In the embodiment shown in FIGS. 3 and 4, the air is supplied into the room from the air outlet provided on the floor or the ceiling surface, and the air is exhausted from almost the entire ceiling surface or the floor surface for circulation. Therefore, it is possible to uniformly and efficiently air-condition the inside of the room by preventing a stagnant portion or the like from being generated in the room.

Further, if the air conditioner shown in FIGS. 3 and 4 is used, the flow direction of the wind can be reversed in accordance with summer, winter, etc. simply by switching the flow path.

In the embodiment shown in FIGS. 3 and 4, the air supply port 31 or 51 on the exhaust surface side can be used as the exhaust port, or these can be removed.

In the air conditioning method of the present invention, when exhausting from the floor, the flow of air near the floor is preferably 1.5 m / s or less, more preferably 1.0 m / s or less. This is particularly desirable in terms of protecting women's feet.

The amount of air supplied to the room is preferably 15 to 35 m ³ / h · person, typically 25 m ³ / h · person. Further, it is desirable that the intake amount of fresh air be 1/8 to 1/2 amount, typically 1/4 amount of the amount of air supplied to the room. For example, 20m ³ / h
・ When human air is circulated in the room 71, the exhaust pipe of the air conditioner 11
16 to 5 m ³ / h ・ Human air is discharged to the outside of the system, and the same amount of air is taken in through the intake pipe 18.

EFFECTS OF THE INVENTION According to the air conditioning method of the present invention, it is possible to prevent the generation of hot air or cold air blow-through parts or stagnant parts, and to air-condition the room substantially uniformly, comfortably, and efficiently.

Further, according to the air conditioner of the present invention, depending on summer, winter, etc.,
The air conditioning method can be implemented by changing the direction of air flow.

[Brief description of drawings]

FIG. 1, FIG. 2, FIG. 3 and FIG. 4 are explanatory views showing an embodiment of the present invention. 11 …… Air conditioner, 12 …… Air supply pipe 13 …… Flow control device, 14 …… Exhaust pipe 15,17,19 …… Switching device, 16 …… Exhaust pipe 18 …… Intake pipe, 21 …… Floor air supply (Exhaust) duct 23 …… Floor (sub) exhaust duct 25 …… Ceiling exhaust (air supply) duct 27 …… Ceiling (sub) exhaust duct 31 …… Floor air supply (exhaust) port, 35 …… Floor finishing material 37 ...... Floor base material, 39 ...... Floor plate 41 ...... Underfloor space, 43 ...... Posts 45,61 ...... Concrete slab 51 ...... Ceiling exhaust (air supply) port, 53 ...... Ceiling finishing plate 57 ...... Ceiling space , 59 …… Hanging frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Ichikawa 5-13-36 Shinjuku Town, Kawagoe City, Saitama Prefecture

Claims (12)

[Claims] Claim: What is claimed is: 1. Air from an air conditioner is blown into a room through an air supply port provided on a floor surface, while indoor air is exhausted through an exhaust port provided on a ceiling surface and also from an exhaust port provided on a floor surface. An air conditioning method characterized by exhausting part of indoor air. 2. The air conditioning method according to claim 1, wherein substantially the entire floor surface is used as an exhaust port except for a portion provided with an air supply port. 3. The air from the air conditioner is blown into the room through an air supply port provided on the floor, while the almost entire ceiling surface is used as an exhaust port, and the indoor air is exhausted through the exhaust port. Air conditioning method to be. 4. The air from the air conditioner is blown into the room through an air supply port provided on the ceiling, while the room air is exhausted through an exhaust port provided on the floor, and the room is also exhausted through an exhaust port provided on the ceiling. An air conditioning method characterized by exhausting part of air. 5. The air conditioning method according to claim 4, wherein substantially the entire ceiling surface is used as an exhaust port except for a portion provided with an air supply port. 6. An air conditioner blows air into a room through an air supply port provided on a ceiling surface, while substantially the entire floor surface is used as an exhaust port, and the indoor air is exhausted through the exhaust port. Air conditioning method. 7. A method of exhausting air from a floor surface through a porous floor finishing material having a continuous passage in the thickness direction when a part or almost the entire floor surface is used as an exhaust port. ,
The air conditioning method according to item 4, 5, or 6. 8. The exhaust from the ceiling surface through a porous ceiling finishing material having a continuous passage in the thickness direction when using a part or almost the entire surface of the ceiling as an exhaust port. The air conditioning method according to paragraphs 3, 3, 4 or 5. 9. The air conditioning method according to claim 1, wherein the air supply port can be switched to the exhaust port and the exhaust port can be switched to the air supply port. 10. An air conditioner for supplying air from an air conditioner into a room and exhausting the air in the room to circulate the air, the floor surface supply / exhaust port provided on the floor surface of the room, and the ceiling in the room. A ceiling surface supply / exhaust port provided on a surface, a supply / exhaust duct for supplying / exhausting air to / from both the supply / exhaust ports, and a switching device for switching supply / exhaust of air to / from the supply / exhaust ports An air conditioner characterized by that. 11. The air conditioner according to claim 10, wherein substantially the entire floor surface is used as a floor exhaust port except for a portion where the floor air supply / exhaust port is provided. 12. The ceiling surface exhaust port as claimed in claim 10 or 11, wherein almost the entire ceiling surface is used as the ceiling surface exhaust port except for the portion where the ceiling surface supply / exhaust port is provided and the installation part of the ceiling accessory equipment such as a lighting device and a sprinkler. Air conditioner.