JP2002295869A - Air-conditioning system for house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evenly and efficiently cool/heat the entire region of building space by sectioning the building space into a living room space and a ventilation space surrounding it, and exchanging heat using heated or cooled heating medium. SOLUTION: The air-conditioning system of housing comprises a ventilation space 1 which communicates with at least one among an under-floor space 10, a wall space 11 and a ceiling space 12 abutting on each living space 50 in a house 5, a heat storage tank 2 of thermally insulating structure storing fluid heating medium 20 which is selectively heated or cooled, a heat storage material 31 laid in the under floor space in the foundation 53 of house, while being insulated thermally from the ground surface, and a heating circuit 3 conducting heating medium in the heat storage tank through pipings installed in the heat storage material for exchanging heat. A cooling circuit, arranged to supply outdoor air, exchanged heat with the heating medium in the heat storage tank, into each living space of the house, may be provided as an additional structure. Furthermore, facility cost and maintenance cost can be saved significantly, using waste oil as the heating medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building such as a detached house, in which the building space is divided into a living space and a ventilation space.
The present invention relates to a house air conditioning system capable of efficiently and efficiently cooling and heating the entire building space by heat exchange with a heated or cooled heat medium.

[0002]

2. Description of the Related Art In a conventional single-family house or the like, air conditioning is performed by a cooling and heating device for each room, or a cooling and heating device is installed in one place in a building, and piping for each application is carried out from there. Some have provided a living environment that provides air conditioning throughout the building, such as cooling and heating, ventilation, and humidity control.

[0003]

However, it is difficult to perform uniform and efficient cooling and heating over the entire living room with the conventional room-based cooling and heating system and air-conditioning equipment. A remarkable temperature difference is generated, which tends to hurt the physical condition, and further, there is a problem that dew is formed in the airtight space and mold is thereby generated.

[0004] In a whole-room air-conditioning system, a heat exchanger using water or antifreeze as a heat medium is liable to cause clogging and rust of pipes in a long-term use. In addition, it is necessary to periodically inspect the piping and replace the heat medium, and there is a problem that maintenance costs such as replacement and treatment of waste liquid increase in addition to expensive equipment costs.

[0005]

[Purpose] The present invention has been made in view of such circumstances.
Providing a new house air-conditioning system in which the building space is divided into a living space and a ventilation space surrounding it, and the entire building space can be cooled and heated evenly and efficiently by heat exchange with heated or cooled heat medium. It is intended to do so.

[0006]

Means for Solving the Problems In order to solve the above problems, the house air conditioning system of the present invention is configured as follows. That is, in claim 1, at least the underfloor space (10) in contact with each living space (50) in the house (5),
Heat storage of a heat-insulating structure that stores a ventilation space (1) communicating any one of a back space (11) and a back space (12), and a fluid heat medium (20) heated by a heating means (32). Tank (2) and underfloor space (10) in house foundation (53)
Heat storage material (31), which is laid insulated from the ground side, and a heating circuit in which the heat medium (20) of the heat storage tank (2) flows through the heat storage material (31) through a pipe capable of exchanging heat. (3)
And characterized by the following.

According to the second aspect of the present invention, at least one of the underfloor space (10), the back space (11), and the back space (12) communicating with each living space (50) in the house (5) communicates with each other. A space (1), a heat storage tank (2) having a heat insulating structure storing a fluid heat medium (20) to be cooled by a cooling means (40), and heat exchange with the heat medium (20) in the heat storage tank (2). And a cooling circuit (4) adapted to supply the outside air into each living space (50) of the house (5).

According to the third aspect, at least the underfloor space (10) which is in contact with each living space (50) in the house (5),
Heat storage of a ventilation space (1) communicating any one of the back space (11) and the back space (12) and a fluid heat medium (20) for selectively heating or cooling. A tank (2), a heat storage material (31) laid insulated from the ground in the underfloor space (10) in the house foundation (53), and a pipe capable of exchanging heat inside the heat storage material (31) to perform the heat storage. The heating circuit (3) through which the heat medium (20) of the tank (2) circulates, and the outside air that has exchanged heat with the heat medium (20) of the heat storage tank (2) are used for each living space ( 50), and a cooling circuit (4) for supplying air to the inside.

[0009] According to a fourth aspect of the present invention, the heat medium (20) in the first, second or third aspect is waste oil. In addition, in claim 5, claim 1, 2, 3,
Alternatively, the heat storage tank (2) in (4) is installed in a storage space (53a) provided in a house foundation (53).

[0010] The reference numerals in parentheses are provided for convenience in describing the present invention, and do not limit the present invention.

[0011]

According to the above configuration, the present invention operates as follows. According to the first aspect, the heat storage material is heated by the circulation of the waste oil in the heated heat storage tank, and the heated air in the underfloor space rises in the ventilation space by natural convection, and comes into contact with the ventilation space across the wall. The entire living space will be uniformly heated.

According to the second aspect, when the cooled waste oil is circulated in the cooling pipe and the blower fan is started,
The outside air introduced from the outside air introduction pipe into the cooling space contacts the cooling pipe and is cooled. The cooled outside air is blown to each living space through a blower pipe to cool the living space.

According to the third aspect, the heating according to the first aspect or the cooling according to the second aspect are selectively performed.

Further, according to the fourth aspect, the use of waste oil as the heat medium makes the procurement cost almost unnecessary, and the waste oil, which has been discarded, is effectively used. In addition, according to the fifth aspect, by disposing the heat storage tank in the underfloor space, the heat storage tank is installed without reducing the effective volume of the living room.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the house air conditioning system according to the present invention will be described below in detail with reference to the drawings. In the present embodiment, an example of application to a single-family house is described.However, application to a small apartment house such as an apartment is also possible, and the present invention should be interpreted as being limited to only the present embodiment. No.

[First Embodiment] FIG. 1 is a schematic configuration diagram showing a house air-conditioning system according to a first embodiment. The house air-conditioning system A of the first embodiment includes a ventilation space 1, a heat storage tank 2, and a heating circuit 3. The ventilation space 1 is a space in which the underfloor space 10, the wall back space 11, and the ceiling back space 12 that communicate with each living space 50 in the house 5 communicate with each other.
1. A heat insulating material 54 is provided on the outside wall back 52 and the house foundation 53 to enhance the heat insulating effect with the outside. In addition, on the outdoor side of the heat insulating material 54 disposed on the attic 51 and the outer wall back 52,
An outside air layer 55 and a ridge vent 56 are provided to prevent the formation of dew and mold. The heat storage tank 2 is an adiabatic storage tank, and is installed in a storage section 53a formed by dug a part of a house foundation 53, and contains therein a waste oil 20 as a heat medium.
Is stored.

The heating circuit 3 heats the living space 50 by heating the entire ventilation space 1 by heat exchange and natural convection. The heating circuit 3 is constituted by a heating pipe 30 connected to the heat storage tank 2 and circulated almost all over the underfloor space 10. And is laid in a state of being buried in the heat storage material 31 made of. Further, the waste oil 20 in the heat storage tank 2 is heated by an electric heater 32 as a heating means and stored in a warm state. In this embodiment, ordinary concrete is used as the heat storage material 31. However, the present invention is not limited to this, and an existing solid heat storage material may be appropriately selected and used.

[Operation of the First Embodiment] The operation of the house air-conditioning system A according to the first embodiment having the above configuration will be described. First, the waste oil 20 in the heat storage tank 2 is heated by the electric heater 32. Subsequently, the oil feed pump 33 attached to the feed stroke of the heating pipe 30 is started to guide the waste oil 20 in the heat storage tank 2 to the heating circuit 3 to heat the heat storage material 31. The waste oil 20 whose temperature has dropped by circulating through the heating circuit 3 returns to the heat storage tank 2 from the heating pipe 30 in the return stroke. At this time, when the temperature of the waste oil 20 in the heat storage tank 2 becomes lower than a predetermined temperature, the electric heater 32 reheats the waste oil 20. The heat storage material 31 is heated by the circulation of the waste oil 20, and the heated air in the underfloor space 10 rises in the ventilation space 1 by natural convection, and the entire living space 50 in contact with the ventilation space 1 across the wall is uniformly heated. Will be done. The ascended and cooled air descends by natural convection, and the underfloor space 10
Then, it is heated again and rises repeatedly.

[Heating Performance Confirmation Test] FIG. 3 shows test data obtained by applying the above heating function configuration to an actual house. In winter, the upper limit temperature of the 450 liter heat storage tank 2 is set to 80 ° C. by midnight power. The third cycle of heating the house from 23:00 the day before to 7:00 in the next morning and then circulating waste oil 20 without heating from 7:00 to 23:00 in the morning (day 3) ) Is the test result. The minimum / maximum outside air temperature during the test was −4 / 3 ° C.

These measured values are obtained by sampling the temperature and humidity of the room, floor and walls, the ventilation space 1, the underfloor space 10, the house foundation 53, and the outside air of the living space 50 during heating. From these results, it was found that the house 5
The temperature of the living space 50 inside was maintained at approximately 20 ° C., and the relative humidity was also approximately 50 to 70%, demonstrating that uniform heating was performed according to the present invention. The temperature of the waste oil 20 in the heat storage tank 2 at the end of the test was 46 ° C.

[Embodiment 2] FIG. 2 is a schematic configuration diagram showing a house air-conditioning system according to Embodiment 2. The house air-conditioning system B according to the second embodiment includes a ventilation space 1, a heat storage tank 2, and a cooling circuit 4, and the ventilation space 1 and the heat storage tank 2 are the same as those in the first embodiment. Detailed description is omitted.

The cooling circuit 4 cools the outside air introduced from outside the building by heat exchange and sends it to the living space 50. The cooling circuit 4 mainly includes a refrigerator 40, a cooling space 41, and a blower tube 42. It consists of. The refrigerator 40 includes the heat storage tank 2
The waste oil 20 is circulated for cooling, and is disposed outdoors. The cooling space 41 is a space for heat exchange having a predetermined volume buried under the outdoor basement.
1a, an outside air introduction pipe 41b, and a drain pipe 41c are provided.

The cooling pipe 41a is for circulating the waste oil 20 in the cooled heat storage tank 2 to perform heat exchange, and is disposed in the cooling space 41 in a state of being spirally wound for a predetermined length. . The outside air introduction pipe 41b is a pipe for introducing outside air into the cooling space 41. The drain pipe 41c is a pipe attached near the bottom of the cooling space 41 for discharging the dew water 41d such as the cooling pipe 41a.

The blower pipe 42 is a pipe connecting the cooling space 41 and each living space 50 in communication with each other, and cools the outside air introduced into the cooling space 41 from the outside air introducing pipe 41b, and then cools the living space 5
It blows to zero. A blower fan 42 a for adding a blown wind is attached in the middle of the blower tube 42.

[Operation of Second Embodiment] The operation of the house air-conditioning system B of the second embodiment having the above configuration will be described. First, the waste oil 20 in the heat storage tank 2 is cooled by the refrigerator 40. continue,
When the cooled waste oil 20 is circulated in the cooling pipe 41a and the blower fan 42a is started, the outside air introduction pipe 41
outside air introduced into the cooling space 41 from the cooling pipe 4
1a and cooled. The cooled outside air is sent to the air duct 4
2 to each living space 50,
Cooling is performed. At this time, when the temperature of the waste oil 20 in the heat storage tank 2 becomes equal to or higher than a predetermined temperature, the refrigerator 40 re-cools the waste oil 20.

[Cooling Performance Confirmation Test] Next, FIG. 4 shows test data in which the configuration of the cooling function is applied to an actual house. ° C and kept warm from 23:00 the day before to 7:00 the next morning, and from 9:00 to 21:00 the third cycle of the house cooling when only the circulation of waste oil 20 was performed without cooling. (Day 3). The minimum / maximum outside air temperature during the test was 24/31 ° C.

The measured values are obtained by sampling the results of measuring the temperature and humidity of the room, floor and walls of the living space 50, the ventilation space 1, the underfloor space 10, the house foundation 53, and the outside air during cooling. From these results, regardless of the change in the outside air temperature, the temperature of the living space 50 in the house 5 is kept at about 27 ° C. or less and the relative humidity is about 50 to 60%, and the uniform cooling according to the present invention is performed. It was proved that. The temperature of the waste oil 20 in the heat storage tank 2 at the end of the test was 15 ° C.

[0028]

[Possibility of Other Embodiments] In the above embodiment, continuous heating or cooling is performed by the electric heater 32 or the refrigerator 40, but it can be performed intermittently using midnight power. In this case, the temperature of the waste oil 20 in the heat storage tank 2 during the daytime can be prevented from lowering or rising, and the storage volume of the waste oil 20 can be ensured so as not to deteriorate the heating or cooling performance.

In the second embodiment, the cooled outside air is blown to each living space 50 using the blower tube 42. However, the cooled outside air is blown to the ventilation space 1 to cool the entire ventilation space 1. Thereby, the living space 50 may be cooled. Furthermore, by using a heat storage tank provided with a switching means for selecting a heating circuit during heating and selecting a cooling circuit during cooling, the house air conditioning systems A and
It is also possible to provide a house air-conditioning system equipped with both B.

[0030]

As described above, according to the house air-conditioning system according to the present invention, the use of waste oil as a heat medium for heat exchange not only makes the procurement cost almost unnecessary,
Waste oil, which has been regarded as waste, can be used effectively. In addition, since waste oil has a low specific gravity, the circulation power can be made smaller than that of a water-based heat medium. In addition to its high boiling point, it does not evaporate. It is possible. Furthermore, if the heat medium is waste oil, rust in the heat storage tank and circulation pipes,
Since no clogging occurs, even cleaning can be omitted. In addition, energy-saving and highly efficient cooling and heating can be performed, dew condensation can be reliably prevented, mold and mite can be prevented from occurring, and a healthy and comfortable living environment can be provided. In addition, by disposing the heat storage tank in the underfloor space, the effect is remarkable, for example, the effective volume of the living room is not reduced.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a house air conditioning system according to a first embodiment.

FIG. 2 is a schematic configuration diagram illustrating a house air conditioning system according to a second embodiment.

FIG. 3 shows the results of a heating performance confirmation test according to Example 1.

FIG. 4 shows the results of a cooling performance confirmation test according to Example 2.

[Explanation of symbols]

 A House air-conditioning system (Example 1) B House air-conditioning system (Example 2) 1 Ventilation space 10 Underfloor space 11 Wall space 12 Ceiling space 2 Heat storage tank 20 Waste oil 3 Heating circuit 30 Heating pipe 31 Heat storage material 32 Electric heater 33 oil feed pump 4 cooling circuit 40 refrigerator 41 cooling space 41a cooling pipe 41b outside air introduction pipe 41c drain pipe 41d dew condensation water 42 blower pipe 42a blower fan 5 house 50 living space 51 attic 52 back of outer wall 53 house foundation 53a storage section 54 Insulation material 55 Outside air layer 56 Building ventilation opening

Claims (5)

[Claims] At least an underfloor space (10) contacting each living space (50) in a house (5), a back wall space (11),
A ventilation space (1) communicating with any of the space above the ceiling (12), and a fluid heat medium (2) heated by a heating means (32);
0), a heat storage tank (2) having a heat insulation structure, a heat storage material (31) laid insulated from the ground side in an underfloor space (10) in a house foundation (53), and a heat storage material (31). Circuit (3) in which the heat medium (20) of the heat storage tank (2) is circulated by pipes for heat exchange.
And a house air-conditioning system characterized by: 2. At least an underfloor space (10) in contact with each living space (50) in the house (5), a back wall space (11),
A ventilation space (1) communicating with any of the space above the ceiling (12); and a fluid heat medium (2) cooled by a cooling means (40).
The heat storage tank (2) having a heat insulating structure storing the heat storage medium (0), and the outside air that has exchanged heat with the heat medium (20) of the heat storage tank (2) is sent into each living space (50) of the house (5). And a cooling circuit (4) as described above. 3. At least an underfloor space (10) in contact with each living space (50) in the house (5), a back wall space (11),
A ventilation space (1) communicating with any of the space above the ceiling (12), a heat storage tank (2) having a heat insulating structure storing a fluid heat medium (20) for selectively heating or cooling; A heat storage material (31) laid insulated from the ground in the underfloor space (10) in the foundation (53), and a heat medium in the heat storage tank (2) through heat exchangeable piping in the heat storage material (31). Heating circuit through which (20) was distributed (3)
And a cooling circuit (4) configured to send outside air that has exchanged heat with the heat medium (20) of the heat storage tank (2) into each living space (50) of the house (5). A house air-conditioning system characterized by the following. 4. The house air-conditioning system according to claim 1, wherein the heating medium is waste oil. 5. The house air conditioning system according to claim 1, wherein the heat storage tank (2) is installed in a storage space (53a) provided in the house foundation (53).