JPH0626732A - Method and device for cooling and hot water supply - Google Patents

Abstract

PURPOSE:To form the whole in a compact state and to suppress incurring of energy loss by a method wherein the generated heat of the condenser of a refrigeration cycle is effectively utilized as a heat source for a hot water supplying device. CONSTITUTION:A condenser 14 of a refrigeration cycle 24 is contained in a state to be immersed in water in a feed hot water tank 26 and the refrigeration cycle 24 and the feed hot water supply tank 26 are combined together to form a unit. Water in the hot water supply tank 26 is caused to pass through the heat dissipation part of the condenser 14 and simultaneously with cooling of the condenser 14 by means of water, water is heated. Air fed with the aid of a blast fan 22 is caused to pass through an evaporator 18 to generate cooling air, which is discharged to a duct 30. A main duct 32 communicating with a toilet 12 through the duct 30 is branched into an auxiliary duct 36 communicating with an exhaust duct 34 of the toilet 12. By switching a first switching damper 38 arranged at a branch part between the main duct 32 and the auxiliary duct 36, cooling air is caused to pass through the main duct 32 during the summer season to effect cooling of the toilet 12. When there is no need for cooling, cooling air is caused to flow through the auxiliary duct 36 and discharged to the outside of a room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling and hot water supply method for heating water in a hot water supply tank by using a refrigeration cycle and a cooling and hot water supply apparatus using the method.

[0002]

2. Description of the Related Art In recent years, many kinds of convenient devices have been installed due to the upgrading of living space, and for example, a hot water supply device and a cooling device are one of them.

[0003]

However, in such a conventional building, since the hot water supply device and the cooling device are installed independently of each other, an installation space for installing the hot water supply device and the cooling device is provided. Individually required,
These installation spaces were inevitably extensive.
Further, while the hot water supply device heats the water in the hot water supply tank with gas or electricity, the cooling device releases heat generated by the condenser of the refrigeration cycle to the outside. For this reason, there is a problem that the heat generated in the condenser is wasted when the room is cooled, resulting in a loss of energy.

In view of the conventional problems, the present invention effectively utilizes the heat generated by the condenser of the refrigeration cycle as the heat source of the hot water supply apparatus, thereby making it possible to reduce the overall size and suppress energy loss. An object of the present invention is to provide a cooling and hot water supply method and a cooling and hot water supply apparatus using the method.

[0005]

In order to achieve such an object, the cooling and hot water supply method of the present invention comprises a cooling device using a refrigerating cycle, and utilizes the heat dissipation of the condenser of this refrigerating cycle to provide The water is heated, and the cooling air that has passed through the evaporator of the refrigeration cycle is switched between indoor and outdoor according to the outside air temperature and is discharged.

Further, in order to achieve such an object, the cooling and hot water supply apparatus of the present invention stores the condenser of the cooling apparatus using the refrigeration cycle by immersing the condenser in the water in the hot water tank and storing the evaporator of the refrigeration cycle. A switch for branching the duct that supplies the cooling air that has passed through, connecting one to the inside of the room and the other to the outside, and switching the circulation direction of the cooling air to the branch part of this duct according to the outside air temperature. A damper is provided.

[0007]

In the cooling and hot water supply method of the present invention having the above-described structure, the heat in the hot water supply tank is heated by utilizing the heat radiation of the condenser of the refrigeration cycle, so that the heat radiation of the condenser is effectively utilized to cause energy loss. Can be suppressed. In addition, the cooling air that has passed through the evaporator of the refrigeration cycle,
By switching between indoor and outdoor according to the outdoor temperature and releasing the air, this cooling air can be introduced into the room to cool it on a hot day such as summer, and under other weather conditions, the cooling air can be taken out of the room. It can be discharged to prevent the room from being overcooled. Further, since the water in the hot water supply tank is heated by the condenser, the original heating device for hot water supply is unnecessary, and the simplification of the configuration and the downsizing of the device can be achieved.

Further, in the cooling and hot water supply apparatus of the present invention using such a cooling and hot water supply method, the condenser of the cooling and hot water supply apparatus using the refrigeration cycle is dipped in water in the hot water supply tank and stored. It is possible to further reduce the size of the apparatus by integrally incorporating the hot water supply tank and the condenser.
Further, the cooling air that has passed through the evaporator of the refrigeration cycle can be switched between indoor and outdoor by simply operating the switching damper, so that the cooling air discharge operation can be easily performed.

[0009]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 and 2 show an embodiment of a cooling and hot water supply apparatus 10 according to the present invention, FIG. 1 is a schematic configuration diagram in which a room is in a cooling state, and FIG. 2 is a schematic configuration showing a state in which cooling air is discharged outside the room. It is a figure. Note that the cooling and hot water supply device 10 of the present embodiment is shown as an example in which it is incorporated in a shared toilet 12 provided in a multi-storey building or the like.

That is, the cooling and hot water supply device 10 of this embodiment is
A general refrigeration cycle 24 including a condenser 14, an expansion valve 16, an evaporator 18, a compressor 20, and a blower fan 22 is provided, and a refrigerant liquid is circulated in the refrigeration cycle 24.

The refrigerant liquid is adiabatically expanded and vaporized when passing through the expansion valve 16, and the vaporized refrigerant liquid is remarkably cooled to be supplied to the evaporator 18. And
When the air supplied from the blower fan 22 passes through the evaporator 18, the air is supplied to the evaporator 1.
Heat is exchanged with the No. 8 to produce cooling air. The refrigerant liquid that has passed through the evaporator 18 is compressed by the compressor 20, the refrigerant liquid whose temperature has been raised by this compression is supplied to the condenser 14, and the refrigerant liquid is liquefied by being cooled by the condenser 14. Then, the liquefied refrigerant liquid is supplied to the expansion valve 16.

On the other hand, a toilet is provided in the toilet 12, and hot water is supplied from a hot water supply tank 26 to the toilet. Water is supplied to the hot water supply tank 26 from a pipe 28, and the supplied water is heated and stored in the hot water supply tank 26.

Here, in this embodiment, the condenser 14 is housed in the hot water supply tank 26, and the condenser 14 is immersed in water in the hot water supply tank 26. And capacitor 1
The water in the hot water supply tank 26 is passed through the heat radiating portion (fin) of 4 and heat is exchanged between the condenser 14 and the water.
It is designed to cool water and heat water. By storing the condenser 14 in the hot water supply tank 26 in this way, the refrigeration cycle 24 and the hot water supply tank 26 are unitized.

The cooling air cooled through the evaporator 18 is discharged through the duct 30. This duct 3
0 is branched into a main duct 32 that communicates with the inside of the toilet 12 and a sub-duct 36 that communicates with the exhaust duct 34 of the toilet 12, and a first switching damper 38 is provided at the branch portion between the main duct 32 and the sub-duct 36. It is provided.

On the other hand, the intake duct 40 for supplying air to the blower fan 22 has a duct 44 leading to a corridor 42.
And a duct 46 communicating with the exhaust duct 34 are branched, and a second switching damper 48 is provided at a branch portion of these ducts 44 and 46. Further, a third switching damper 50 is provided at a portion where the duct 46 communicates with the exhaust duct 34. An exhaust fan 52 is installed in the exhaust duct 34.
The exhaust fan 52 sucks the air in the toilet 12 into the exhaust duct 34 and discharges it outside the room.

In the cooling and hot water supply apparatus 10 having the above-described structure, the evaporator 18 is cooled by driving the refrigeration cycle 24 to produce cooling air by the air supplied from the blower fan 22, while the condenser 14 is heated. It At this time, since the condenser 14 is immersed in the water in the hot water supply tank 26, heat is exchanged between the heat generated in the condenser 14 and the water in the hot water supply tank 26 and, at the same time, the water is heated. Therefore, the hot water is stored in the hot water supply tank 26, and the hot water is supplied to the washbasin through the tap not shown.

The cooling air produced by the evaporator 18 is supplied to the duct 30. On a hot day such as summer, as shown in FIG. 1, the first switching damper 3
8 is switched to the communication side of the main duct 32, and cooling air from the duct 30 can be supplied to the inside of the toilet 12 for cooling. At this time, the second switching damper 48 is shown in FIG.
As shown in FIG. 5, the duct 44 is switched to the communication side, and the air in the corridor 42 is sucked by the blower fan 22 and sent to the evaporator 18. Also, the third switching damper 5
0 is switched to the communication side of the exhaust duct 34, and the air in the toilet 12 is discharged to the outside by the exhaust fan 52. In addition, in FIGS. 1 and 2, the duct indicated by a broken line shows a state in which air does not flow.

On the other hand, when it is not necessary to cool the toilet 12, the first switching damper 38 is switched to the communication side of the auxiliary duct 36 and the second switching damper 48 is connected to the duct 46 as shown in FIG. The third switching damper 50 is switched to the communication side of the duct 46. Therefore, the cooling air in the duct 30 is supplied to the exhaust duct 34 to exhaust the cooling heat of the evaporator 18 to the outside, and the exhaust air in the toilet 12 is supplied to the blower fan 22.

Therefore, in the cooling and hot water supply method using the cooling and hot water supply apparatus 10 according to the present embodiment, the heat in the hot water supply tank 26 is heated by utilizing the heat radiation of the condenser 14 of the refrigeration cycle 24. The heat loss of 14 can be effectively used to reduce the energy loss. Further, the cooling air that has passed through the evaporator 18 of the refrigeration cycle 24 can be switched between the inside of the toilet 12 and the outside to be discharged by switching the first switching damper 38 according to the outside air temperature. Therefore, on a hot day such as summer, the cooling air can be introduced into the room to cool the toilet 12, and when the cooling is not necessary, the cooling air is released to the outside of the toilet 12. It can be prevented from being cooled.

By the way, since the water in the hot water supply tank 26 is heated by the condenser 14 of the refrigeration cycle 24 as described above, the original heating device using electricity or gas for hot water supply is unnecessary, and the refrigeration cycle 24 and Combined with the fact that the hot water supply tank 26 is unitized, it is possible to achieve simplification of the configuration and downsizing of the device.

Further, in the cooling and hot water supply apparatus 10 of the present embodiment, since the condenser 14 is immersed in the water in the hot water supply tank 26 to be stored, the hot water supply tank 26 and the condenser 14 can be integrally incorporated. Therefore, the device 10 can be made more compact. Further, the cooling air that has passed through the evaporator 18 can be switched between indoor and outdoor simply by operating the switching damper 38, so that the cooling air discharge operation can be easily performed.

Although the cooling and hot water supply device 10 of this embodiment has been disclosed as a unitized one for use in the toilet 12, the present invention is not limited to this and can also be used for general housing.

[0023]

As described above, according to the first aspect of the present invention.
In the cooling and hot water supply device shown in, in order to heat the water in the hot water supply tank by utilizing the heat radiation of the condenser of the refrigeration cycle,
Energy loss can be suppressed. In addition, the cooling air that has passed through the evaporator of the refrigeration cycle is switched between indoor and outdoor according to the outside air temperature and is discharged,
Cooling is possible by introducing cooling air into the room,
On the other hand, by discharging the cooling air to the outside of the room, it is possible to prevent overcooling. Furthermore, since the water in the hot water tank is heated by the condenser of the refrigeration cycle,
The original heating device for hot water supply is unnecessary, and the simplification of the configuration and the downsizing of the device can be achieved.

Further, in the cooling and hot water supply apparatus according to the second aspect of the present invention, since the condenser of the cooling apparatus using the refrigeration cycle is immersed in the water in the hot water supply tank and stored, the hot water supply tank and the condenser Can be integrated more compactly. Also, because the release of the cooling air is switched between indoor and outdoor by a switching damper,
There are various excellent effects that the cooling air discharge operation, that is, the cooling of the room can be stopped easily.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a cooling and hot water supply device according to the present invention in which a room is cooled.

FIG. 2 is a schematic configuration diagram showing an embodiment of a cooling and hot water supply device according to the present invention and showing a state in which cooling air is discharged to the outside of the room.

[Explanation of symbols]

10 Cooling and Hot Water Supply Device 12 Toilet 14 Condenser 18 Evaporator 22 Blower Fan 24 Refrigeration Cycle 26 Hot Water Tank 32 Main Duct 34 Sub Duct 38 First Switching Damper

Claims (2)

[Claims] 1. A cooling device using a refrigerating cycle is provided,
The heat of the condenser in the refrigeration cycle is used to heat the water in the hot water supply tank, and the cooling air that has passed through the evaporator of the refrigeration cycle is switched between indoor and outdoor according to the outside air temperature and is discharged. Cooling and hot water supply method. 2. A condenser of a refrigerating apparatus using a refrigerating cycle is immersed in water in a hot water supply tank to be housed, and a duct for supplying cooling air passing through an evaporator of the refrigerating cycle is branched, and one of the condensers is placed indoors. A cooling and hot water supply device characterized in that a switching damper is provided which communicates with the other and communicates with the outside of the room, and a branching portion of the duct is provided with a switching damper for switching the flow direction of cooling air according to the outside air temperature.