JPH109601A - Air conditioning system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a comfortable air-conditioning environment by reducing a temperature difference in a height direction particularly in a height range where a person lives. SOLUTION: A discharge port 15 for warm air and a discharge port 16 for cool air are provided between a height (d) where a person lives and the vicinity of the floor 14, and the discharge ports are provided near the floor 14 for heating and for cooling. An air-conditioning system that is sometimes provided at a position higher than the heating discharge port 15 and a return air port is provided on the opposing wall surface so that a resident's height can be maintained in a favorable air-conditioning environment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an air conditioner for air-conditioning, wherein at least one
By taking out from one discharge port and providing a return air port near the floor opposite to this discharge port and returning air to the air conditioning heat source, it is possible to maintain the height of occupancy of a person in a good air conditioning environment while saving energy. It relates to a new air conditioning system.

[0002]

2. Description of the Related Art It is widely known that air-conditioning systems are mainly air-conditioned with a ceiling outlet and a return air to the ceiling, and the air-conditioning environment at a height where a person lives is not always good. I have. FIG. 7 shows an example of the temperature distribution of the ceiling outlet air return air conditioning. That is, the ceiling 13 of the room 1
FIG. 7 shows an example of the temperature distribution when the heating discharge port 15 and the return air port 17 are provided in FIG. 7. The temperature near the floor 14 (29 ° C.) is lower than the temperature near the ceiling 13 (29 ° C.). 21 ° C.).

In order to improve this temperature distribution, Japanese Patent Application Laid-Open
Japanese Patent Application Publication No. -180459 proposes a device having an air flow path extending in the height direction of a room, providing openings at upper and lower parts of the flow path, sucking air from the upper part during heating, and blowing out from the lower part. . Further, Japanese Patent Application Laid-Open No. Hei 6-272890 discloses an arrangement in which an air outlet is provided near a floor surface and an inlet is provided at a position higher than the air outlet.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a comfortable air-conditioning environment by reducing a temperature difference in a height direction particularly in a height range where a person lives.

[0005]

Means for Solving the Problems Here, the present invention provides:
In particular, as a result of intensive research on how to reduce the temperature difference in the height direction of the height range where people live, the following air conditioning system was developed based on a completely different idea from conventional air conditioning systems. The system was developed. In other words, in the present invention, in any of the above-described cooling and heating cases, the conditioned air to be blown into the room is discharged from at least one discharge port, and returned to the vicinity of the floor opposite to the discharge port. By providing an opening and returning air to the air conditioning heat source, it is intended to achieve the maintenance of a high occupant height in a good air conditioning environment while saving energy. As is well-known, ceiling air return air conditioning is the mainstream, but in the present invention, the discharge port is provided between the height at which the person lives and the vicinity of the floor, and the height at which the person lives is adjusted to a good air conditioning. It is something that can be maintained in the environment.

According to the present invention, instead of heating or cooling the entire room including the vicinity of the ceiling uniformly as in the conventional case for cooling and heating, the air is limited to the height at which the person lives in the height direction. Harmonize. In other words, the vicinity of the ceiling of the room is characterized by being an air-conditioning non-management area in which cooling and heating are not managed as air conditioning. The height at which a person lives here is a concept including a height at which air conditioning is managed for plants or animals by applying the present invention. In addition, energy saving can be realized by performing air conditioning only at the height where people live, rather than defining an air-conditioning non-management area.

Further, in providing various filters at the discharge port and the return air port, it is not necessary to attach or remove the filter near the ceiling as in the conventional case, and the height at which a person lives can be obtained. Is characterized in that maintenance of the filter is improved by providing various filters at the discharge port and the return air port. The air-conditioning heat source is meant to include all devices useful for air conditioning, such as a dedicated heating device, a dedicated cooling device, and a combined cooling / heating device.

[0008]

FIG. 1 is a schematic diagram for conceptually explaining the technical idea of the present invention. Code 1 for the whole
Has an air-conditioned space 20 surrounded by wall surfaces 11 and 12, a ceiling 13, and a floor surface 14. In the vicinity of the floor surface 14 of the first wall surface 11, at least one warm air outlet 15 is provided. The discharge port 15 is connected to the air-conditioning heat source 18 via the air supply passage 30, and discharges warm air during heating.

At least one cold air outlet 16 is provided at a height H ₁ from the floor of the first wall surface 11.
The height H ₁ dimensions within 2000mm is selected, for example. The air-conditioning heat source 18 supplies a low-speed air-conditioning airflow having a wind speed of 2 m / s or less, and supplies a warm air discharge port 15 near the floor surface during heating.
Thus, for example, warm air of 25 ° C. to 35 ° C. is discharged. At the time of cooling / heating, for example, from 20 ° C. to 25
Discharge cold air of ° C.

At least one air return port 17 is provided near the floor surface 14 of the second wall surface 12 facing the first wall surface. The return air port 17 is connected to an air conditioning heat source 18 through a return air passage 40.
When the air-conditioning area is set for plants or animals other than humans, the numerical value does not necessarily need to be limited to the numerical value.

As described above, according to the present invention, the entire room including the vicinity of the ceiling is uniformly heated as in the conventional method,
Rather than lowering the temperature, air conditioning is performed on an area defined by the height of the residence of the person indicated by reference numeral d in FIG. 1 to define an air-conditioning non-management area, thereby realizing energy saving. It is characterized by the following.

Next, referring to FIG. 1, the present invention will be described in detail with reference to one embodiment.
Various arrangements of the air supply path 30 from the air conditioning heat source 18 and the return air path 40 from the return air path 40 to the air conditioning heat source 18 provided outside the air conditioner 12 can be adopted.

FIG. 2 shows the outer wall of a room in a building, and
Indicates an indoor space, and space 50 indicates an outdoor space. FIG. 7A shows the outer wall 60.
A duct or a space duct 30 for supplying air and a duct or a space duct (not shown) for returning air, and at least one discharge port 15, 16 and a return air port are provided in the duct 30. . According to this method, the air conditioning system of the present invention can be realized without deteriorating the appearance of the room by providing at least one air supply path and return air path for the duct or the space duct when constructing the building.

FIG. 2 (B) shows the inner wall surface 7 of the outer wall 70.
2, an air supply path 30 is provided. Similarly, it is a structure in which a return air passage of the inner wall surface of the opposing outer wall is provided. FIG. 2C shows the air supply path 30 along the outer wall surface of the outer wall 80.
And a return air passage is provided outside the outer wall on the opposite side. With this structure, the air-conditioning system of the present invention can be applied to an existing building. Further, depending on the structure of the building, one of the air passages may be provided outside the outer wall.

Next, an example of the use of the return air port will be described more specifically with reference to FIGS. At least one return air port 17 indicated by reference numeral 17 in FIG. 1 is provided near the floor 14 facing the discharge ports 15 and 16. The at least one return air port 17 is preferably provided in the baseboard near the floor of the wall, but the same effect can be obtained by providing the return air port 17 near the top of the baseboard or on the floor near the baseboard. Also, in some rooms, windows or objects are placed on the wall surface facing the discharge port, and it may be difficult to provide the return air port in the baseboard, near the top of the baseboard, or on the floor near the baseboard. .

FIG. 3 shows an embodiment in which a return air port is provided near the floor using a duct. The wall surface 100 has an opening such as a window 110. A return air duct 120 disposed through the ceiling 130 is installed along the inside of the wall surface 100, and the return air port 122 opens near the floor surface 140. The outlet for warm air is arranged near the floor surface, and the living space is uniformly heated. Furthermore, in the present invention, instead of the semi-buried installation as in the conventional ceiling blow-out ceiling return air conditioning, by providing at least one air conditioning heat source in the ceiling or in the ceiling of the adjacent corridor or in the corridor side wall, air conditioning is achieved. Noise generated by the heat source can be easily reduced.

FIG. 4 shows an example of the layout, in which the air-conditioning heat source 18 is arranged outside the air-conditioned space 20 and communicates with the air-conditioned space through the air supply path 30 and the return air path 40.
A blower 200 can be connected to the return air port 17 to form the return air passage 42 by the blower.

Further, by providing the air-conditioning heat source in the ceiling behind the corridor or in the side wall of the corridor, and by providing working ports on the ceiling surface or the corridor side wall of the corridor, or the floor on the floor, there are a plurality of rooms. In this case, one-way work can be performed in the corridor without entering the room, and the maintenance property is improved. As described above, by providing various filters at the discharge port and the return air port, the work of mounting and removing the filter near the ceiling as in the conventional case is not required, and the discharge is performed at the height where a person lives. Another feature is that by providing various filters at the outlet and the return air port, the maintainability of the filters is improved. The blower 200 may be provided in the middle of the return air passage. The return air opening 17 and the return air passage 42 are made of tree-like structures, so that they can be installed as an interior.

In the above-described embodiment, an example in which one discharge port and one return port are provided has been described. However, when the air-conditioning space is wide, the first port is provided as shown in the plan view of FIG. Wall 1
1 and a plurality of discharge ports 15, 1 along the second wall 12.
6 and return air opening 17 can be provided.

FIG. 6 shows an example of the temperature distribution in the room 1 during heating according to the present invention. The warm air is discharged from the discharge port 15 and collected from the return air port 17. It was confirmed by an experiment that the temperature difference between the ceiling 13 and the floor 14 was extremely small.

[0021]

【The invention's effect】

1) As described above, according to the present invention, conditioned air to be blown into a room is taken out from at least one discharge port, and a return air port is provided near the floor opposite to the discharge port to return air to the air conditioning heat source. As a result, it is possible to maintain the height at which a person lives in a favorable air-conditioning environment and to save energy. 2) By defining a non-controlled area for air conditioning, it is possible to prevent the contaminated air, such as cigarette smoke, from being mixed with the occupied height of the person, which is also effective from a sanitary point of view. 3) By defining an air-conditioning non-management area, the time required to set a predetermined air-conditioning environment is short. 4) Energy saving can be achieved by setting the temperature at which the temperature difference from the predetermined temperature is small as the supply temperature. 5) By providing at least one air-conditioning heat source inside the ceiling or inside the ceiling of the corridor or in the side wall of the corridor, noise generated by the air-conditioning heat source can be easily reduced. 6) By installing the air-conditioning heat source in the ceiling behind the corridor or in the corridor side wall, and by providing work openings on the ceiling surface or corridor side wall surface of the corridor, or the floor surface on the floor, if there are multiple rooms, Work in one direction is possible in the corridor without entering, and maintenance is improved. 7) By providing various filters at the discharge port and the return air port at the height where a person lives, maintenance of the filters is improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example in which the present invention is applied to a living space in a building.

FIG. 2 is a sectional view showing an example of the outer wall of FIG. 1;

FIG. 3 is a diagram showing an example in which a return air port of the duct is provided near the floor via the duct.

FIG. 4 is a diagram showing an example in which a blower is provided in a return air passage.

FIG. 5 is a plan view showing an example in which a plurality of discharge ports and return air ports are arranged.

FIG. 6 is a diagram showing an example of a temperature distribution to which the present invention is applied.

FIG. 7 is a diagram showing an example of a temperature distribution of ceiling blowing ceiling return air conditioning.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 11, 12 Wall 13 Ceiling surface 14 Floor surface 15 Heating outlet 16 Cooling outlet 17 Return air port 18 Air-conditioning heat source 20 Indoor 30 Air supply path 40 Return air path 50 Outside b Air flow during heating Airflow c Air conditioning unmanaged area d Height at which people live

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[Procedure amendment]

[Submission date] June 21, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

Next, an example of the use of the return air port will be described more specifically with reference to FIGS. At least one return air port 17 indicated by reference numeral 17 in FIG. 1 is provided near the floor 14 facing the discharge ports 15 and 16. The at least one return air port 17 is preferably provided in the baseboard near the floor of the wall, but the same effect can be obtained by providing the return air port 17 near the top of the baseboard or on the floor near the baseboard. Also, in some rooms, windows or objects are placed on the wall surface facing the discharge port, and it may be difficult to provide the return air port in the baseboard, near the top of the baseboard, or on the floor near the baseboard. . What
Contact position of the discharge port and return air port can be seen from each other.
Within the range.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

In the above-described embodiment, an example in which one discharge port and one return port are provided has been described. However, when the air-conditioning space is wide, the first port is provided as shown in the plan view of FIG. Wall 1
1 and a plurality of discharge ports 15, 1 along the second wall 12.
6 and return air opening 17 can be provided. The present invention
Even if there are obstacles such as desks and furniture in the room,
It goes around behind these obstacles. In addition, return air outlet
Because it is located near the stagnation air, exhaust air
To reach easily.

Continuing on the front page (72) Inventor, Shino Takahashi 4-6-6 Kanda Surugadai, Chiyoda-ku, Tokyo Inside Hitachi, Ltd. (72) Inventor Fumio Harada 1-23-2 Kandasuda-cho, Chiyoda-ku, Tokyo, Japan Within Hitachi Refrigerant Co., Ltd. ) Inventor, Yasunobu Nishimura 508, Juyoji, Kashiwa-shi, Chiba 8 Within Hitachi, Ltd.

Claims (4)

[Claims] 1. An air-conditioning system comprising at least one air-conditioning heat source, air blowing means for sending the air-conditioned air to a room, and means for returning air to the air-conditioning heat source, at least one discharge port for blowing air-conditioned air into the room. And a return air port provided in the vicinity of the floor opposite to the discharge port, so that a resident's height is maintained in a favorable air conditioning environment. 2. The air conditioning system according to claim 1, wherein the discharge port is provided from a height where a person lives to a position near a floor. 3. The air conditioning system according to claim 1, wherein the discharge port is provided near a floor during heating, and is provided at a position higher than the heating discharge port during cooling. 4. The air conditioning system according to claim 1, wherein said return air opening is provided at a height within 500 mm from the floor.