JPH0875189A - Indoor heating and cooling method and indoor heater/ cooler used therefor. - Google Patents

Abstract

PURPOSE: To efficiently cool and heat at a low cost without impairing the external appearance of an apartment house by returning the warm or cold air of a heater/cooler into a room via an air duct, the air in the room from an air inlet to an underfloor space, and further the air in the space to the heater/cooler via a return duct communicating with the space. CONSTITUTION: The warm air fed from a cooler 1 is diffused in a room via an air duct 2 from a diffuser 6, and the air in the room is heated by the warm air to heat the room. The air in the room is fed from the inlet 3 in the room into an underfloor space 4 to heat a floor, The air in the space 4 is fed to a return duct 5 to be directly or indirectly returned to a heater/cooler 1 to be circulated. When the room is cooled, the warm air may be altered to the cold air, and the other operations are all the same as the case of the warm air. Accordingly, since the air heating or cooling the room can heat or cool from the underfloor in a building or an apartment house, heating/cooling efficiency is (high, the structure is simple, low cost and the sense of beauty of the building is not impaired.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a room heating / cooling method for a building and a heating / cooling apparatus used for the same, and relates to a reinforced concrete structure (RC), a steel frame structure (SRC), a wooden frame construction method,
Among buildings such as wooden frame wall construction method (two-by-four) and steel structure, it is possible to heat or cool the interior of the housing of fireproof structure such as reinforced concrete structure (RC), steel structure (SRC) from both inside and underfloor. The present invention relates to such an indoor heating / cooling method and a heating / cooling apparatus used therefor.

[0002]

2. Description of the Related Art In the case of heating or cooling a room (indoor) of a condominium made of RC or SRC, conventionally, hot air or cold air from a heating / cooling device is generally sent to the room. . In this case, if heating / cooling equipment is installed in each room in order to heat or cool a large number of rooms, the number of heating / cooling equipment increases and the equipment cost increases. Further, since each heating / cooling device requires an outdoor unit, the number of heating / cooling devices inevitably increases as well. In the case of a condominium, the location of the outdoor unit is always limited to the veranda, so that if the number of heating and cooling devices increases, many outdoor units will be installed on the balcony, which is not desirable from the aspect of aesthetics. In the case of condominiums, the number of rooms facing the veranda is limited, so if you install a heating / cooling device in a room that does not face the veranda, the piping from the heating / cooling device to the outdoor unit on the veranda will be longer, and plumbing work will be required. However, there was also a problem that equipment costs were high. These problems are not as severe as in the case of condominiums, but they are also the same in the case of single-family houses with many rooms.

Therefore, the applicant of the present application has previously developed a heating / cooling system capable of heating or cooling many rooms with one heating / cooling device. As shown in Fig. 7, one heat pump type air conditioner (heating / cooling equipment) A is installed in the ceiling of a house or condominium, and then a supply duct (supply duct) B is installed in each room to supply it. Hot air or cold air is sent to the duct B to be discharged to each room. Further, in this case, a return duct (return duct) C is provided in each room, air in each room is introduced into the room, sent to the heat exchanger unit D, and discharged from the exhaust port (EA) of the heat exchanger unit D to the outside of the room. The heat exchanger unit D
Is introduced from the introduction port (OA) of the above, sent to the heating / cooling equipment A for heating or cooling, and sent out to the supply duct B. 7A shows the piping state of the second floor of the single-family house, and FIG. 7B shows the piping state of the first floor.

In recent years, in addition to sending warm air or cold air into each room as described above, a floor heating or floor cooling device for heating or cooling the floor has been developed. As an example, pipe a pipe under the floor panel and send hot water for heating or cold water for cooling to the pipe,
There are those that heat or cool the floor itself. Another example is to wire a heater under a floor panel and energize the heater to heat or cool the floor itself.

Further, recently, a space is provided under the floor or inside the wall, and hot air or cold air is directly sent from the heating and cooling equipment to the space to indirectly heat the room by heating or cooling the floor or wall. There is also a heating / cooling device for heating or cooling.

[0006]

However, among the various heating and cooling devices described above, one heating and cooling device A is installed behind the ceiling of a house or condominium as shown in FIG. 7, and the heating and cooling device A is installed.
A system that heats or cools each room by sending warm air or cold air from the supply duct B to the supply duct B has an advantage that a plurality of rooms can be efficiently heated and cooled by one heating and cooling device. Since the return duct (return duct) C has to be provided in the room, the number of return ducts increases, and the piping is troublesome and costly.

Among the heating and cooling devices, the floor heating device uses a boiler or a heater as a heating source, and the floor cooling device uses cooling water or cold air as a cooling source.
A heating source and a cooling source cannot be shared. For this reason,
There is a problem that the devices cannot be fully utilized because the devices cannot be shared for heating and cooling. Also, with a floor heating device or a floor cooling device, if a person sits directly on the floor, he or she will feel sufficient warmth or coldness, but since it is difficult to sufficiently heat or cool the air in the indoor space, There is a difficulty in standing on the floor and not feeling too warm or cold. In addition, there is a problem that floor construction costs are high because piping and wiring work is required.

Among the above-mentioned heating devices, those which form a space under the floor or inside the wall and send hot air or cold air into the space to heat or cool the room are those which are used to heat the room through the floor or the wall. Since it indirectly heats, there is a problem that the heating efficiency is low and that alone cannot sufficiently heat the room.

An object of the present invention is to provide a reinforced concrete structure (R
C), steel frame structure (SRC), wooden frame construction method, wooden frame wall construction method (two by four), steel frame building, etc., especially RC,
An object of the present invention is to provide a method for efficiently and inexpensively heating and cooling the interior of an apartment house such as a condominium having an SRC structure without damaging the appearance of the condominium, and a heating / cooling device used for the method.

[0010]

The indoor heating / cooling method according to claim 1 of the present invention is, as shown in FIGS. 1 to 3, a warm air or a cold air from a heating / cooling device 1 via an air supply duct 2. Is introduced into the room, the air in the room is introduced into the underfloor space 4 formed under the floor from the air introduction port 3 formed in the room, and the air in the underfloor space 4 is passed through the return duct 5 that communicates with the underfloor space 4 to perform the heating and cooling. This is a method in which the device 1 is returned directly or indirectly.

The indoor heating / cooling apparatus according to claim 2 of the present invention is, as shown in FIGS. 1 to 3, a heating / cooling apparatus 1 and an air supply duct for sending warm air or cold air from the heating / cooling apparatus 1. 2, an outlet 6 for sending hot air or cold air from the air supply duct 2 into the room, an air inlet 3 formed in the room so that the air in the room can be introduced, a structural floor 7 and a space above it. An underfloor space 4 formed between a floor 8 installed with an opening, and one end communicating with the underfloor space 4 and the other end directly or indirectly communicating with the heating / cooling device 1, It is provided with a return duct 5 for returning air directly or indirectly to the heating / cooling equipment 1.

As shown in FIG. 2, the indoor heating / cooling apparatus according to claim 3 of the present invention takes in outdoor air and sends it directly or indirectly to the heating / cooling apparatus 1, and takes in indoor air and discharges it outside. The heat exchanger 9 is provided.

The indoor heating / cooling device according to claim 4 of the present invention, as shown in FIGS. 3 and 4, is a guide 10 for diffusing the indoor air introduced into the underfloor space 4 in the underfloor space 4.
Is installed in the underfloor space 4.

[0014]

The operation of heating the room by the indoor heating / cooling method according to claim 1 of the present invention will be described. The warm air sent from the heating / cooling equipment 1 in FIG. 1 flows through the air supply duct 2 and is blown out into the room through the outlet 6, and the warm air heats the room air to heat the room. The room air is introduced into the room air introduction port 3 and flows into the underfloor space 4 to warm the floor. The air in the underfloor space 4 returns to the return duct 5
To the heating / cooling equipment 1 and directly or indirectly returned to the heating / cooling equipment 1 for circulation. When the room is cooled by the heating / cooling method according to the first aspect, only the hot air needs to be changed to cold air, and all other operations are the same as in the case of hot air.

The operation of heating the room by the room heating / cooling apparatus according to the second aspect of the present invention will be described. Also in this case, the warm air sent from the heating / cooling equipment 1 of FIG. 1 flows through the air supply duct 2 and is blown out into the room through the outlet 6, and the warm air heats the room air to heat the room. To be done. The air in the room is introduced from the air introduction port 3 formed in the room and flows into the underfloor space 4 to warm the floor. The air in the underfloor space 4 communicates with the underfloor space 4 in a return duct 5
To the heating / cooling equipment 1 and circulates. When the room is cooled by the heating / cooling device according to the second aspect, only the hot air needs to be changed to the cold air, and all other operations are the same as the case of the hot air.

The operation of heating the room by the heating / cooling device according to claim 3 of the present invention is basically the same as that of claim 2, and is different from that of claim 2. The outdoor air is taken into the heating / cooling device 1 through the heat exchanger 9, and the indoor air is discharged through the heat exchanger 9 to the outside. Therefore, clean warm air or cool air is delivered from the heating / cooling device 1.

In the present invention, the operation when the room is heated by the heating / cooling device according to claim 4 is basically the same as the case of claim 3, except that in claim 4, the underfloor space 4 is guided. Since 10 is provided, the warm air introduced into the underfloor space 4 from the air introduction port 3 flows along the guide 10 and is diffused throughout the underfloor space 4 to heat the underfloor space 4 in general. In this case also, the air in the underfloor space 4 flows into the return duct 5 and returns to the heating / cooling equipment 1.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cooling and heating apparatus of the present invention will be described in detail with reference to FIGS. What is shown in FIG. 1 is RC or SR.
It is an example of the room of the condominium of C structure.

Reference numeral 20 in FIG. 1 denotes a concrete structural ceiling of an RC or SRC condominium, and a space is provided below this to form a ceiling plate 21 to form a ceiling 21. A small room 22 having a size capable of installing the heating / cooling equipment 1 is provided above (above the ceiling), and the heating / cooling equipment 1 such as a heat pump is installed in the small room 22.

Reference numeral 2 in FIG. 1 is an air supply duct for sending out warm air or cold air from the heating / cooling equipment 1, which has a base end connected to the heating / cooling equipment 1 and a portion beyond the base end in the condominium. Hot air or cold air sent from the heating / cooling equipment 1 into the air supply duct 2 by being piped through the ceiling above the ceiling of each room to the ceiling of each room, and the tip end thereof being connected to the outlet 6 attached to the ceiling of each room. Is blown out into each room through the blowout port 6. The outlet 6 is provided with a grill so that the wind direction and volume can be adjusted.

The air supply duct 2 is preferably lightweight and easy to handle. For example, it is suitable to assemble and use the duct members shown in FIGS. 5 and 6 previously developed by the present inventor. This duct member is an outer cylinder 2 made of paper that is antiseptic, mildewproof and moistureproof.
Inner cylinder 24 with the same diameter inside 3
And a ring-shaped holder 25 made of styrofoam is arranged between the ends of the cylinders 23 and 24 in the axial direction, and an air layer 26 surrounded by the holders 25 and the cylinders 23 and 24 is formed. I am doing it.

The duct member may be a straight type member as shown in FIG. 5, a T-shaped member as shown in FIG. 6, or the like.
A desired shape, such as an L-shape, is prepared as needed. Among the various duct members, the straight type is used for the straight part of the air supply duct 2, the T-shaped type is used for the branch part of the air supply duct 2, and the L-shaped type is used for the corner part of the duct. These duct members are lightweight, have a small load on the ceiling, are easy to construct, and are convenient because there is no risk of condensation on the outer peripheral surface of the outer cylinder during cooling.

Reference numeral 9 in FIG. 2 denotes a heat exchanger installed in the ceiling, which, like the heat exchanger shown in FIG. 7, takes in outdoor air from the outside air intake port OA and is a small room 22 in the ceiling.
The indoor air is taken in through the indoor air intake port 27 and discharged out of the room through the exhaust port EA.

Reference numeral 3 in FIG. 1 is an air inlet provided in the lower portion of the wall 31 of the room, which is also for introducing the air in the room into the underfloor space 4. The air inlet 3 communicates with the underfloor space 4 as shown in FIG.
A gallery 32 is attached as shown in FIG. It is desirable that the air introduction port 3 be formed at a position where the air in the room can be taken in as easily as possible, and in some cases, it may be formed on the floor.

In FIG. 1, 7 is a concrete structural floor of an RC or SRC condominium, and 8 is a floor, which is installed on the structural floor 7 with a space therebetween. A space between the structural floor 7 and the underfloor space 4 is provided. The underfloor space 4 is not divided into each room of the condominium but is one space that communicates with each house of the condominium.

As shown in FIG. 3, the floor 8 comprises a base panel 36 to which support legs 35 are attached, a throwing plate 37, and a finishing plate 38. The length of the supporting legs 35 is adjusted. As much as possible, the height of the floor 8 is adjustable.

Reference numeral 10 in FIG. 1 is a guide provided in the underfloor space 4, and diffuses warm air or cold air introduced into the underfloor space 4 from the room through the air inlet 3 to the underfloor space 4 as a whole.
The entire underfloor space 4 can be heated or cooled as uniformly as possible.

Reference numeral 5 in FIG. 1 is a return duct for returning the air in the underfloor space 4 to the heating / cooling equipment 1 through the small chamber 22 and the upper end (exit) of the small chamber 2.
2 and the lower end (inlet) is connected to the underfloor space 4 so that the air in the underfloor space 4 is connected to the return duct 5
Through the small chamber 22, and the heating and cooling equipment 1 from the small chamber 22
It is taken in and circulated. The return duct 5 can be provided in an arbitrary number of one or more according to the area of the underfloor space 4.

1 and 2, a small chamber 22 is formed in the back of the ceiling, one end of the return duct 5 is connected to the small chamber 22, and the inlet side of the heat exchanger 9 is connected to the return duct 5 and the heat exchanger. Although the exchanger 9 is indirectly connected to the heating / cooling equipment 1, one end of the return duct 5 and the inlet side of the heat exchanger 9 may be directly connected to the heating / cooling equipment 1 in the present invention.

[0030]

[Explanation of the operation of the indoor heating device of FIG. 1] The heating / cooling equipment 1 of FIG.
The warm air sent from the air supply duct 2 to the air supply duct 2 is blown out into the room from the air outlet 6 provided on the ceiling (thick line arrow in FIG. 4).
The warm air heats the air in the room to heat the room. The air in the room is introduced into the air inlet 3 formed on the wall of the room and flows into the underfloor space 4 (the middle arrow in FIG. 4),
Warm floor 8. In this case, the warm air that has flowed into the underfloor space 4 is dispersed by the guide 10 and diffused throughout the underfloor space 4 (broken line arrow in FIG. 4) to heat the entire floor 8. Then, the air in the underfloor space 4 flows into the return duct 5 from the inlet of the return duct 5 opening in the underfloor space 4, and is discharged into the small chamber 22 from the outlet of the return duct 5 opening in the small chamber 22. The air discharged into the small chamber 22 is introduced into the heating / cooling device 1 in the small chamber 22 and circulates. At this time, the dirty air in the room is taken in by the heat exchanger 9 and discharged to the outside, and the air in the room is taken in by the heat exchanger 9 and sent to the small room 22 and introduced from the small room 22 to the heating / cooling equipment 1. Is heated by the heating / cooling device 1 and sent to the air supply duct 2 as warm air.

The above description is for heating, but for cooling, the cooling air may be sent out from the heating / cooling device 1, and the flow of cold air in this case is the same as the flow of warm air. In both heating and cooling, the operating time can be appropriately selected, and continuous operation can be performed for 24 hours.

In the present invention, an example of the temperature at each point of hot air and cold air sent from the heating / cooling equipment 1 is shown below.

[0033]

[When heating]

 Temperature when sending out from heating / cooling equipment 50 ° C Indoor outlet temperature 45-48 ° C Indoor air inlet temperature 25-28 ° C Return duct inlet temperature 20 ° C Small chamber temperature 18 ° C

[0034]

[When cooling]

 Temperature during delivery from heating / cooling equipment 10-15 ° C Temperature of indoor outlet 14-15 ° C Temperature of indoor air inlet 25-28 ° C Temperature of return duct inlet 28-30 ° C Temperature of small chamber 28-30 ℃

[0035]

The indoor heating / cooling method according to claim 1 and the indoor heating / cooling apparatus according to claim 2 of the present invention have the following effects. building,
RC, SRC structure buildings such as condominiums and housing estates, or wooden frame construction methods, wooden frame wall construction methods (two-by-four), steel frame construction, etc. Similar to the case of sending warm air or cold air from the heating / cooling equipment 1 to the room through the air supply duct 2, the room can be heated or cooled, and further, the room can be heated or cooled with warm air or cold air. Since it is possible to heat or cool from under the floor by using cold air, the efficiency of heating or cooling is high, and the energy used for heating or cooling can be effectively used without waste, which is economical. ． As shown in FIG. 7, conventionally, the return duct 5 had to be provided for each room, but in the present invention, the return duct 5 can be integrated into one, so that the piping is easy and the return duct is Since the number of 5 is small, the structure is simple and the cost is low. ． Since hot air or cold air can be sent to each room from one heating / cooling device 1 through the air supply duct 2, only one outdoor unit is required even when heating or cooling many rooms, and it can be used as a veranda in the condominium. There is no need to install many outdoor units. Therefore, it does not spoil the beauty of the apartment,
Suitable for construction on RC, SRC structure buildings such as buildings, condominiums, housing estates.

In the third aspect of the present invention, since the heat exchanger 9 is provided, the dirty air in the room is discharged to the outside and the clean air outside is introduced into the room. Even if it is heated and cooled, the air in the room does not get dirty and your eyes do not hurt.

In the fourth aspect of the present invention, the guide 1 is used.
Since 0 is provided, the air introduced into the underfloor space 4 is diffused in the underfloor space 4, the entire floor is uniformly heated and cooled, and uneven heating and cooling does not occur. Further, by changing the direction of the guide 10, it is possible to adjust the flow of hot air or cold air to predominantly heat or cool the central portion of the room.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a heating / cooling device of the present invention.

FIG. 2 is an explanatory plan view showing an embodiment of the heating / cooling device of the present invention.

FIG. 3 is an explanatory view of partial cutting of an underfloor space portion in the heating / cooling device of the present invention.

FIG. 4 is an explanatory diagram of a gas flow in the heating / cooling device of the present invention.

5A and 5B are views showing a linear duct member that constitutes an air supply duct in the heating and cooling apparatus of the present invention, in which FIG. 5A is a front view and FIG.

6A and 6B are views showing a T-shaped duct member constituting an air supply duct in the heating / cooling device of the present invention, in which FIG. 6A is a front view and FIG.

FIG. 7 shows an example of a conventional heating / cooling device, (a)
Is a plan explanatory view of a second floor portion, and (b) is a plan explanatory view of a first floor portion.

[Explanation of symbols]

 1 is a heating / cooling device 2 is an air supply duct 3 is an air inlet 4 is an underfloor space 5 is a return duct 6 is an outlet 7 is a structural floor 8 is a floor 9 is installed a heat exchanger 10 is a guide

Claims (4)

[Claims] 1. An underfloor space (underfloor) formed under the floor from an air inlet (3) formed in the room (1) by sending warm air or cold air from a heating / cooling device (1) through an air supply duct (2). 4)
And the air in the underfloor space (4) is returned directly or indirectly to the heating / cooling equipment (1) through a return duct (5) communicating with the underfloor space (4). Heating and cooling method. 2. A heating / cooling device (1) and the same heating / cooling device (1)
An air supply duct (2) for sending hot air or cold air from the room, an outlet (6) for sending hot air or cold air into the room from the air supply duct (2), and a room for introducing indoor air. An underfloor space (4) formed between the air inlet (3) formed in the floor, the structural floor (7) and the floor (8) installed above the structural floor (7) with a space, and one end of the underfloor space (4) and the other end communicates directly or indirectly to the heating / cooling equipment (1) and returns the air in the underfloor space (4) directly or indirectly to the heating / cooling equipment (1). An indoor heating / cooling apparatus comprising (5). 3. The indoor heating / cooling device according to claim 2,
An indoor heating / cooling device comprising a heat exchanger (9) which takes in outdoor air and sends it directly or indirectly to a heating / cooling device (1) and takes in indoor air and discharges it outside. 4. The indoor heating / cooling apparatus according to claim 2 or 3, wherein a guide (10) for diffusing the indoor air introduced into the underfloor space (4) in the underfloor space (4) is provided.
An indoor heating and cooling device characterized by being installed in an underfloor space (4).