JPH0814644A - Air conditioner - Google Patents

Abstract

PURPOSE:To completely discharge contaminated matter and ensure a temperature formation layer in a room and extend a clean and comfortable air conditioning environment not only in an interior zone but also to a perimeter zone. CONSTITUTION:There are provided a floor member 6 arranged at a lower portion in a room 1 and having any air supply holes 6a over the entire surface thereof, an air supply chamber 7 formed at a lower portion of the floor member, an exhaust chamber 9 formed at an upper portion in the room, an air conditioner 13 connected with the air supply chamber, a window counter 26 provided on a window part of the room and communicated with the air supply chamber, an air supply inlet 27 formed at an upper portion of the window counter, and an air supply auxiliary fan 30 disposed in the window counter. Air is supplied from the air supply holes into the room at an ultra-low air velocity, and cold air is supplied from the air supply inlet upon cooling while cold draft produced at the window part is supplied at the air supply chamber upon heating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an air conditioner of the type in which air is supplied from the floor in the direction of the ceiling so as to exude at an extremely low wind speed to completely discharge pollutants and form temperature stratification in the room. Regarding the device.

[0002]

2. Description of the Related Art In the air conditioning of office buildings in recent years,
Local temperature distribution near the outlet or uneven temperature distribution due to heat generation from ubiquitous OA equipment, turbulence of air flow due to the presence of partitions, furniture, etc. Floors, especially carpeted floors It is an important issue to solve the problems of pollutants such as dust, mites, molds or cigarette smoke, body odor, and exhaled air that roll up from the surface and realize a clean and comfortable air conditioning environment.

However, the conventional general air-conditioning system, whether it is a ceiling blow-out system or a floor blow-out system, is a complete mixing system in which the air in the room is actively stirred and mixed from the air outlet with the force of air supply. Therefore, it is difficult to completely remove the pollutants that are generated or flowed in the room and are diluted and diffused by the air supply. It is possible to remove pollutants to some extent by increasing the ventilation frequency, but in order to maintain the desired room temperature, increase the blown air volume or considerably lower the supply air temperature in the case of cooling. However, in the case of heating, it has to be considerably high, and there is a problem that the equipment becomes large and energy consumption increases.

In order to solve this problem, Japanese Patent Laid-Open No. 4-1
In Japanese Patent No. 61749, the air quality is improved by forming a piston flow in which air is supplied into the room at a low wind speed from the entire surface of the floor and the whole surface of the ceiling is a perforated plate to uniformly push the air toward the ceiling surface. I have a suggestion.

[0005]

However, the air-conditioning system disclosed in Japanese Patent Laid-Open No. 4-161749 is a system in which air is supplied to the room from the entire surface of the floor at a low wind speed, and therefore the interior zone occupying the central main area of the room. Can be easily maintained at the set temperature in the room, but since it is not a method of actively stirring and mixing the air in the room with the momentum of supply air, the perimeter zone, which is the window side area affected by disturbance, There is a problem that it is difficult to maintain a comfortable air-conditioning environment because it is easily affected by changes in outside temperature and solar radiation. In addition, in office buildings in recent years, due to the increase in computers and other office automation equipment, there is a cooling load even in the winter, which makes it more difficult to control the air conditioning in the perimeter zone.

The present invention is intended to solve the above-mentioned problems. By supplying air so that it exudes at an ultra-low wind speed from the floor toward the ceiling, the pollutants are completely discharged and the temperature stratification in the room is completed. It is an object of the present invention to provide an air conditioner that enables the formation of the air conditioner and can expand the clean and comfortable air conditioning environment not only to the interior zone but also to the perimeter zone.

[0007]

To this end, the air conditioner of the present invention is provided in the lower part of the chamber 1 and has a large number of air supply holes 6a over its entire surface.
A floor member 6 having an air supply chamber, an air supply chamber 7 formed in the lower part of the floor member, an exhaust chamber 9 formed in the upper part of the chamber, and an air conditioner 13 connected to the air supply chamber.
A window counter 26 provided in a window portion of the chamber and communicating with the air supply chamber, an air supply port 27 formed in an upper portion of the window counter, and an air supply auxiliary provided in the window counter. A fan 30 is provided to supply air to the room from the air supply hole at an ultra-low speed, cool air is supplied from the air supply port during cooling, and cold draft generated at the window part is supplied to the air supply chamber during heating. It is characterized by doing.

As an embodiment of the present invention, a heater 31 is provided in the window counter 26 so as to contact the room side, or a roll screen 32 is provided in the window counter 26 to provide a window. A configuration is possible in which the roll screen 32 can be pulled out from the counter 26. Here, the numbers added to the above configuration are for comparison with the drawings in order to facilitate understanding of the present invention, and the configuration of the present invention is not limited thereby.

[0009]

In the present invention, the interior zone and the perimeter zone of the room are supplied with air so as to exude into the room at a very low wind velocity so as to form a temperature stratification, and the pollutants are quickly moved to the upper space, The surrounding area of the occupants is always covered with fresh air that oozes from the entire floor, and the cold draft generated in the windows of the perimeter zone is used for cooling the interior zone in the winter, which saves energy and saves energy. Not only is the clean and comfortable air conditioning environment extended to the perimeter zone.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows one embodiment of the air conditioner of the present invention,
1A is a schematic cross-sectional view, and FIG. 1B is a partial plan view of FIG. 1A.

In FIG. 1A, a room 1, a machine room 2, and a corridor 3 are formed between upper and lower slabs 4 and 5. A floor member 6 having a large number of blowout holes 6a on the entire lower surface of the chamber 1
And the air supply chamber 7 is formed below the floor member 6. Further, a ceiling member 8 having a plurality of exhaust holes 8 a is arranged above the chamber 1, and an exhaust chamber 9 is formed above the ceiling member 8. In this embodiment, the ceiling member 8 is provided with a plurality of exhaust holes 8a.
One or a plurality of exhaust ports may be provided, an exhaust port may be provided on the upper part of the wall, or an exhaust port may be provided on both the ceiling member 8 and the wall. The structure is such that the air can be exuded into the room at a very low wind velocity without forming a duct to form a temperature stratification.

An air conditioner 13 having a filter 10, a hot / cold water coil 11 and an air supply fan 12 is installed in the machine room 2. The number of air conditioners 13 installed is set according to the size of the room 1. An exhaust fan 14 is provided in the exhaust chamber 9.
Is connected, and part of the exhaust gas is circulated to the air conditioner 13. Further, a breathable carpet member 15 is laid on the entire surface of the floor member 6. A heat exchanger of a heat pump may be provided instead of the cold / hot water coil 11, or a cold water coil and an electric heater may be combined.

Further, a venetian blind 17 is provided inside the window portion 16, and the support 1 for the venetian blind 17 is provided.
7a is installed in a blind box 18 formed below the upper slab 4, and the blind box 18 is configured to communicate with the exhaust chamber 9, and the window 16
The hot air in the upper part is exhausted from the blind box 18.

Further, the inside of the window counter 26 provided in the window waist wall portion 25 is communicated with the air supply chamber 7, and one or a plurality of slit-shaped supply is provided on the upper portion of the window counter 26 as shown in FIG. 1 (B). An air outlet 27 is formed, and an auxiliary air supply fan 30 is arranged in the window counter 26.

The operation of this embodiment having the above structure will be described. In this air conditioning system, air having a temperature slightly lower than the set temperature of the room 1 during cooling and air having a temperature slightly higher than during heating is supplied from the air conditioner 13 through the air supply chamber 7 to the floor member 6. Air is supplied from the pores 6a. At this time, the supply air volume is also controlled by controlling the rotation speed of the supply fan 12. The air supply rate in the chamber 1 is about 0.1 mm to 100 mm per second (preferably 5 mm per second).
Ultra-low wind speed of 10 mm (speed that human skin does not feel)
The air is supplied so as to exude into the chamber 1 to form a temperature stratification in the chamber 1. At the upper part of the heating element such as a human body and OA equipment, a heat rising flow is generated due to the heat generation, and the supplied air is attracted to this flow and gathers at the heating element.
The polluted air C containing heat load and pollutants quickly moves to the upper space, and the area around the occupant M is always surrounded by fresh air exuding from the entire floor.

During cooling in the summer, as shown in FIG. 1 (A), the auxiliary fan 30 for air supply is rotated so as to flow as shown by an arrow in the drawing, and the interior zone I and the perimeter are discharged from the blow-out hole 6a of the air supply chamber 7. The cool air is supplied to the zone P, and the window portion 16 is supplied with the cool air from the air supply port 27 of the window counter 26. The hot air above the window 16 is exhausted from the blind box 18. During heating in the winter season, as shown in FIG. 2, hot air is supplied to the interior zone I and the perimeter zone P from the air outlet 6a of the air supply chamber 7, and when the interior zone I has a cooling load, the air is supplied. The auxiliary air fan 30 is reversed so as to flow as shown by the arrow in the drawing, and cold draft generated near the window 16 is supplied to the interior zone I from the air supply port 27 of the window counter 26. The temperature of this cold draft is lower than room temperature by 2 ° C. to 3 ° C., and it can be effectively used for cooling the interior zone I, and suppresses the mixing loss due to the cooling load during heating. You can

FIG. 3 is a partial sectional view showing a modification of the window counter portion in the embodiment of FIG. In this example, the heater 31 is arranged so as to contact the inside of the window counter 26 inside the room, and is configured to give radiant heat R to the perimeter zone P during heating. Since this example is a treatment of heat load by radiation, it is essentially compatible with this air conditioning system that does not stir the air flow, and in the case of heating, it is possible to effectively treat cold radiation and cold draft of the window surface. it can.

FIG. 4 is a partial sectional view showing a modification of the window counter portion in the embodiment of FIG. In this example, the roll screen 32 is arranged in the window counter 26, and the roll screen 32 can be pulled out from the window counter 26. In this example, the cold draft can be captured more effectively, the solar radiation can be shielded, and the mixing loss due to the cooling load during heating can be further suppressed.

[0019]

As is apparent from the above description, according to the present invention, air is supplied so as to seep out from the floor toward the ceiling at an extremely low wind speed, so that pollutants are completely discharged and indoors. It is possible to form temperature stratification, and the cold draft generated in the window of the perimeter zone is used for cooling the interior zone, which saves energy and provides a clean and comfortable air conditioning environment not only in the interior zone but also in the perimeter zone. Can be extended. Further, it has the following excellent effects.

Mixing loss due to cooling load during heating can be suppressed, and dew condensation on the window surface in winter can be prevented.

Since the temperature stratification is formed in the room, the required number of ventilations can be reduced, and as a result, the power of the air conditioner and the exhaust fan can be reduced and the size can be reduced.
In addition, the heat load on the device of the air conditioner can be reduced.

This can be detected immediately above the fire source, and the fire can be detected early.

Since the supply air exudes into the room at an extremely low wind speed, dust adhering to the floor does not fly up, and the ventilation of the carpet member facilitates cleaning, and periodic ventilation allows mites to be cleaned. It can suppress the reproduction of mold and mold.

Since the supply air exudes from the entire floor, OA
You can freely design the layout of equipment and furniture,
Even when the OA devices are ubiquitous, the supplied air autonomously flows toward the heating element, and it is possible to realize a flat air-conditioning environment.

Since it is not necessary to install ducts on the air supply side and the air exhaust side, it is possible to supply air even if the height of the air supply chamber is low, that is, even with a low-floor structure, thus reducing the construction cost. You can

[Brief description of drawings]

1 shows an embodiment of an air conditioner of the present invention, and FIG.
1A is a schematic cross-sectional view, and FIG. 1B is a partial plan view of FIG. 1A.

FIG. 2 is a partial cross-sectional view for explaining the operation during heating in the embodiment of FIG.

FIG. 3 is a partial cross-sectional view showing a modified example of the window counter portion in the embodiment of FIG.

FIG. 4 is a partial cross-sectional view showing a modified example of the window counter section in the embodiment of FIG.

[Explanation of symbols]

1 ... Room, 2 ... Machine room, 3 ... Corridor, 4, 5 ... Slab, 6 ...
Floor member 6a ... Air supply hole, 7 ... Air supply chamber, 8 ... Ceiling member, 8
a ... Exhaust hole 9 ... Exhaust chamber, 10 ... Filter, 11 ... Cold / hot water coil 12 ... Air supply fan, 13 ... Air conditioner, 14 ... Exhaust fan 15 ... Carpet member, 16 ... Window part, 17 ... Venetian blind 18 ... Blind box, 25 ... Window waist wall part, 26 ... Window counter 27 ... Air supply port, 30 ... Auxiliary fan for air supply, 31 ... Heater

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Tatsuo Nobe 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yoichi Haga 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.

Claims (3)

[Claims] 1. A floor member disposed in the lower part of the chamber and having a large number of air supply holes on the entire surface, an air supply chamber formed in the lower part of the floor member, and an exhaust chamber formed in the upper part of the chamber. An air conditioner connected to the air supply chamber, a window counter provided in a window portion of the room and in communication with the air supply chamber, and an air supply port formed in an upper portion of the window counter,
An auxiliary fan for air supply arranged in the window counter is provided, and air is supplied into the room at an ultra-low wind speed from the air supply hole, and cold air is supplied from the air supply port during cooling, and the window portion is heated during heating. An air conditioner characterized in that the cold draft generated in 1. is supplied to the air supply chamber. 2. The air conditioner according to claim 1, wherein a heater is provided in the window counter so as to contact the room side. 3. The roll screen is arranged in the window counter so that the roll screen can be pulled out from the window counter.
The air conditioner described in.