JP2642674B2 - Air conditioning method and air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention uses an air conditioning unit for discharging conditioned air to a conditioned room and a heat storage material provided on the floor of the conditioned room. The present invention relates to an air conditioning method and an air conditioner for performing room air conditioning.

(B) Conventional technology In general, conventional air conditioners using a heat storage material
There was one as described in JP-A-55-33163. According to this publication, heat is stored (cooled) using a refrigeration cycle having a compressor in a heat storage tank, and low-temperature brine in the heat storage tank is circulated to an indoor heat exchanger to form a conditioned room. The cooling operation was performed.

(C) Problems to be Solved by the Invention In the conventional air conditioner configured as described above, the conditioned room is substantially air-conditioned only by the indoor heat exchanger, and the temperature in the conditioned room In addition to the uneven distribution, the conditioned air cooled or heated by the indoor heat exchanger is discharged to the conditioned room, and there is a problem that a temperature difference occurs between the place where the conditioned air hits and the place where it is not. Was.

In view of such a problem, the present invention provides an air conditioning method and an air conditioner that maintain an effective temperature distribution in a conditioned room using an air conditioning unit provided in the conditioned room and a heat storage material provided on the floor of the conditioned room. To provide.

(D) Means for Solving the Problems The present invention stores heat supplied from a heat source device provided outside in a heat storage material provided on the floor of a conditioned room, and is provided in the conditioned room when the conditioned room is used. The heat supplied from the heat source unit is switched from the heat storage material side to the supplied air conditioning unit, and the conditioned air is discharged from the air conditioning unit to the conditioned room.

The present invention also provides a refrigeration cycle including a compressor, an outdoor heat exchanger, a decompression device, and an indoor heat exchanger connected in a ring with a refrigerant pipe, a heat exchanger that exchanges heat between the refrigerant and the brine, A switching valve for changing the flow of the refrigerant in the cycle to the heat exchanger, a solid heat storage material provided on the floor of the conditioned room to which the conditioned air conditioned by the indoor heat exchanger is supplied, and a heat storage material and heat And a brine pipe for circulating brine between the exchanger and the heat exchanger.

Further, the present invention heats the heat supplied from the heat source device provided outside the room at the time when the power is supplied at midnight until the temperature of the heat storage material provided on the floor of the conditioned room reaches a predetermined temperature. Or, an air-conditioning unit provided in a conditioned room, wherein the heat supplied from the heat source unit is stored in a heat storage tank during the supply time of the remaining midnight power, and the heat stored in the heat storage tank is stored in the air-conditioned body. And the conditioned air is discharged from the air conditioning unit to the conditioned room.

Further, the present invention provides a heat storage material provided on a floor of a conditioned room by storing heat supplied from a heat source device provided outside a room at a time when power is supplied at midnight in a heat storage tank and using the heat stored in the heat storage tank. The heat storage material is heated or cooled until the temperature reaches a predetermined temperature, and the heat supplied from the heat source device is switched from the heat storage tank side to the air conditioning unit provided in the conditioned room during the air-conditioned period and supplied. The air-conditioning unit discharges conditioned air to the conditioned room and supplies the heat stored in the heat storage tank to the heat storage material when the heat release amount of the heat storage material decreases.

(E) Operation By using the air conditioning method or the air conditioner configured as described above, heat radiation from the heat storage material provided on the floor of the conditioned water and air conditioning by the air conditioning unit can be combined. The temperature distribution in the harmony room is improved.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings. First
The figure is a schematic diagram of the air conditioner. In the figure, reference numeral 1 denotes a conditioned room, in which an air conditioning unit 2 provided on a ceiling and a heat storage unit 3 provided on a floor are provided. Reference numeral 4 denotes a heat source unit having a heating mechanism such as a refrigerating cycle including a compressor, a condenser, a decompression device, and an evaporator, or a burner therein.
Then, the heated or cooled brine is supplied to the air conditioning unit 2 or the heat storage unit 3. 5 and 6 are switching valves for switching the flow of the brine. Note that a refrigerant may be supplied from the heat source unit 4 instead of the brine, and the refrigerant may be linearly condensed or evaporated in the air conditioning unit 2 and the heat storage unit 3.

The air conditioning unit 2 performs heat exchange between the brine or the refrigerant supplied from the heat source unit 4 and the air in the conditioned room.

The heat storage unit 3 is configured as shown in the cross-sectional view of FIG. 2 and the explanatory top view of FIG. In the figure, reference numeral 7 denotes a polyethylene pipe which is arranged in a meandering manner at an interval of about 150 mm. The two pipes are connected in parallel, and the two pipes are connected to each other at an end. Reference numerals 8 and 9 denote an inlet and an outlet of the brine or the refrigerant, respectively. Reference numeral 10 denotes a heat storage material molded to a thickness of about 100 mm (in one embodiment, concrete or ready-mixed concrete prepared so as not to cause cracking due to changes in temperature). A polyethylene pipe 7 is embedded in the heat storage material 10. doing. In addition, 11
Is a heat insulating material, which insulates the heat storage material 10. Reference numeral 12 denotes a surface material (such as a carpet, which easily transmits heat of the heat storage material 10), and is provided on the front side of the heat storage material 10. Reference numeral 13 denotes a floor of the conditioned room 1, on which the heat storage unit 3 having the above-described configuration is placed. FIG. 4 is a cross-sectional view showing another installation state of the heat storage unit 3. The difference from the installation body of the heat storage unit 3 shown in FIG. 2 is that the heat storage unit 3 is embedded in the floor 14 of the conditioned room. On the point. In this case, the floor surface of the conditioned room can be used without a sense of incongruity such as a step, but on the other hand, the heat insulating material 11 is made thicker or the heat insulating effect is reduced in order to suppress the heat radiation from the heat storage material 19 from being performed under the floor. It is necessary to respond to the use of expensive materials.

In the air conditioner configured as described above, for example, during the cooling operation, the heat source unit 4 is operated using the midnight power during the midnight power supply time period, and the switching valves 5 and 6 are switched to cool the heat storage unit 3. Perform heat storage. This heat storage is performed until a certain time is reached or until the temperature of the heat storage material 10 becomes equal to or lower than a certain temperature. When the supply of the late-night power is completed and the time period in which the conditioned room 1 needs cooling is reached, the conditioned room 1 is cooled from the floor side by the low-temperature heat radiation of the heat storage unit 3 and simultaneously supplied normally. When the heat source unit 4 is driven using the electric power to switch the switching valves 5 and 6 to the air conditioning unit 2 side, the cool air is blown out from the air conditioning unit 2 provided on the ceiling. Note that the blowing of the cool air may be controlled based on the temperature of the cold conditioned room 1 or the temperature of the floor or the vicinity of the floor. The amount of heat radiation from the floor may be adjusted by changing the material or thickness of the surface material 12 of the heat storage unit 3. Therefore, the conditioned room 1 is air-conditioned from both the floor and the ceiling, and air-conditioning is performed with uniform temperature.

During the heating operation, the heat source unit 4 is operated during the midnight power supply time period to store heat for heating in the heat storage unit 3 during the midnight power supply time period, and the air is discharged from the air conditioning unit 2 during the heating time period. Air conditioning of the conditioned room is performed together with the warm air to be performed.

FIG. 5 is a schematic diagram showing another embodiment using the present invention. The same components as those in FIG. The heat source unit 4 constitutes a refrigeration cycle by connecting the compressor 16, the four-way valve 17, the outdoor heat exchanger 18, the decompression device 19, and the indoor heat exchanger 2 (air conditioning unit) in a ring through a refrigerant pipe. . During the cooling operation (the four-way valve 17 is in the state shown in FIG. 5), the outdoor heat exchanger 18 acts as a condenser, the air conditioning unit 2 acts as an evaporator, and the conditioned room can be cooled. Become. In heating operation (four-way valve 17 is switched)
In this case, the outdoor heat exchanger 18 functions as an evaporator, the air conditioning unit 2 functions as a condenser, and the conditioned room can be heated.

Reference numeral 15 denotes a water heat exchanger.
By switching to the side, the brine circulated to the heat storage unit 3 by the water heat exchanger 15 is cooled during cooling and heated during heating. Therefore, cooling or heating of the heat storage material 10 is performed by circulating the cooled or heated brine through the heat storage unit 3.

In the air conditioner configured as described above, the switching valves 5 and 6 are switched during the midnight power supply time period to store the heat in the heat storage unit 3, and the switching valves 5 and 6 are switched to air during the time when air conditioning is required. Switching to the air conditioning unit 2 side, this air conditioning unit 2
The air conditioning of the conditioned room 1 is performed from both the heat storage unit 3 and the heat storage unit 3.

FIG. 6 is a schematic diagram showing another embodiment using the present invention, and the same components as those in FIGS. 1 and 5 are denoted by the same reference numerals and description thereof is omitted. A heat storage tank 20 stores heat in the heat storage tank 20 by driving the heat source device 4. As the heat storage tank 20, one using ethylene glycol as a heat storage material, one using water as a heat storage material, and performing ice making outside a tube or inside a tube can be used.

In the air conditioner configured as described above, heat is stored in the heat storage unit 3 by operating the heat source unit 4 by switching the switching valves 5 and 6 to the heat storage unit 3 during the midnight power supply time zone. This heat storage is performed until the temperature of the heat storage unit 3 reaches a predetermined temperature, or heat storage is performed only for a certain period of time. During the remaining midnight power supply time period after the end of such heat storage operation, heat can be stored in the heat storage tank 20 by switching the switching valves 5 and 6 to the heat storage tank 20 side. Therefore, during a time period when air conditioning of the conditioned room 1 is required, air conditioning by heat radiation of the heat storage unit 3 provided on the floor and air conditioning from the air conditioning unit 2 using heat radiation of the heat storage tank 20 are performed. .
When the amount of heat stored in the heat storage tank 20 decreases, the heat source unit 4 is operated to replenish the heat storage tank 20 with heat. The operation of the air-conditioning unit 2 may be performed based on the floor surface temperature or the room temperature of the conditioned room.

FIG. 7 is a schematic view showing another embodiment using the present invention, and the same components as those in FIGS. 1 and 6 are denoted by the same reference numerals and description thereof is omitted. The difference from the schematic diagram shown in FIG. 6 is that the heat storage tank 20 is provided between the heat source unit 4 and the switching valves 5 and 6 and the heat storage unit 3.

In the air conditioner configured as described above, by switching the switching valves 5 and 6 to the heat storage tank 20 side during the midnight power supply time period and operating the heat source unit 4, heat stored in the heat storage tank 20 is stored. Done. When the amount of heat stored in the heat storage tank 20 reaches a predetermined amount or when the operation time of the heat source unit 4 has passed a certain time, the heat storage material (brine) in the heat storage tank 20 is circulated to the heat storage unit 3 of the conditioned room 1. The heat of the heat storage unit 3 is stored. The heat storage in the heat storage unit 3 is performed until the temperature of the floor of the conditioned room 1 or the vicinity of the floor reaches a predetermined temperature or a predetermined time has elapsed. Therefore, heat is stored in the heat storage tank 20 while the midnight power is being supplied.

In a time zone where air conditioning is required in the conditioned room 1, air conditioning by heat radiation of the heat storage unit 3 provided on the floor and air conditioning from the air conditioning unit 2 by operation of the heat source unit 4 are performed. When the heat release amount of the heat storage unit 3 decreases, the heat storage material in the heat storage tank 20 is circulated to the heat storage unit 3 to make up for the shortage of the heat storage amount. In the air conditioner configured as described above, the heat storage obtained by using the late-night electric power is radiated within the air-conditioning time, and the conditioned room can be cooled and heated together with the cooling and heating from the air-conditioning unit by the operation of the heat source device. Things.

(G) Effects of the Invention The present invention provides air conditioning of a conditioned room with heat radiation from a heat storage material provided on the floor of the conditioned room and cooling air or hot air discharged from an air conditioning unit provided on a ceiling side of the conditioned room. It is possible to perform air-conditioning by heat conduction or radiant heat effect by floor cooling or floor heating and direct air-conditioning by circulation of conditioned air at the same time, resulting in comfortable air-conditioning.

[Brief description of the drawings]

1 is a schematic diagram of an air conditioner showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the heat storage unit shown in FIG. 1, and FIG. 3 is a top perspective view of the heat storage unit shown in FIG. FIG. 4 is a sectional view showing another embodiment of the heat storage section shown in FIG. 2, FIG. 5 is a schematic view of an air conditioner showing a second embodiment of the present invention, and FIG. FIG. 7 is a schematic diagram of an air conditioner showing a third embodiment, and FIG. 7 is a schematic diagram of an air conditioner showing a fourth embodiment of the present invention. 1 ... conditioned room, 2 ... air conditioning unit, 3 ... heat storage unit, 4 ... heat source unit, 10 ... heat storage material, 20 ... heat storage tank.

 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Hironori Sonoda 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-62-155453 (JP, A) JP-A Sho 61-36627 (JP, A) Actually open sho 59-130968 (JP, U)

Claims (6)

(57) [Claims] 1. The heat source unit of an air conditioner unit provided in a conditioned room when heat is supplied from a heat source unit provided outside the room and stored in a heat storage material provided on a floor of the conditioned room. An air conditioning method characterized in that heat supplied from the air conditioner is switched from the heat storage material side and supplied, and conditioned air is discharged from the air conditioning unit to the conditioned room. 2. The air conditioning method according to claim 1, wherein the heat supplied from the heat source device is supplied through heated brine or cooled brine. 3. The air-conditioning method according to claim 1, wherein the heat supplied from the heat source device is performed through a condensation action or an evaporation action of the refrigerant. 4. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a decompression device, and an indoor heat exchanger are annularly connected by refrigerant pipes, and a heat exchanger for exchanging heat between refrigerant and brine. When,
A switching valve for changing the flow of the refrigerant in the refrigerant cycle to the heat exchanger side, a solid heat storage material provided on the floor of the conditioned room to which the conditioned air conditioned by the indoor heat exchanger is supplied, and the heat storage material An air conditioner comprising: a brine pipe for circulating brine between the heat exchanger and the heat exchanger. 5. The heat storage material provided on the floor of the conditioned room until the temperature of the heat storage material provided on the floor of the conditioned room reaches a predetermined temperature while the heat supplied from the heat source device provided outside the room during the time when the midnight power is supplied. Heated or cooled, the heat supplied from the heat source unit is stored in the heat storage tank during the remaining midnight power supply time, and the heat stored in the heat storage tank during the air-conditioned time period is provided in the conditioned room. An air conditioning method, characterized in that conditioned air is discharged from the air conditioning unit supplied to the conditioning unit to the conditioned room. 6. A heat storage tank for storing heat supplied from a heat source device provided outside the room during a time period in which electric power is supplied at midnight, and the heat stored in the heat storage tank is provided on the floor of the conditioned room with the heat stored in the heat storage tank. The heat storage material is heated or cooled until the temperature of the heat storage material reaches a predetermined temperature, and the heat supplied from the heat source unit to the air conditioning unit provided in the conditioned room during the air-conditioned time is switched from the heat storage tank side. And discharging the conditioned air from the air conditioning unit to the conditioned room and supplying the heat stored in the heat storage tank to the heat storage material when the heat release amount of the heat storage material decreases. Harmony method.