JPH0126465B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat pump type air conditioner and heating device, and in particular to a heat pump type air conditioner and heating device that aims to effectively utilize exhaust heat and outside air heat during cooling operation, and in which the entire device is incorporated into the outer wall of a bathroom. The aim is to provide equipment.

BACKGROUND ART In recent years, heat pump type air-conditioning and heating devices that can perform both cooling and heating with the same device have become popular in general households.

FIG. 1 is a schematic diagram of a conventional heat pump air-conditioning system. A heat exchanger 3 with indoor air, a capillary 4 as a refrigerant throttling resistance part, and a heat exchanger 5 with outdoor air are connected to the refrigerant compressor 1 via a pilot type four-way switching valve 2 that uses differential pressure. are doing. 6 is a gas-liquid separator; 7 is a blower that takes in room air and blows it into the room through the heat exchanger 3; 8
is a blower that takes in outdoor air and discharges it outside through a heat exchanger 5.

In this device, a four-way switching valve 2 switches between cooling operation and heating operation. That is, as shown by the solid line in the figure, the high-pressure, high-temperature refrigerant from the refrigerant compressor 1 is radiated to the outside through the heat exchanger 5 by the four-way switching valve 2, and then throttled by the capillary 4 and evaporated by the heat exchanger 3. A cooling operation is performed to cool the indoor air. Also, as shown by the broken line,
The high-pressure high-temperature refrigerant from the refrigerant compressor 1 is radiated into the room through the heat exchanger 3 by the four-way switching valve 2, and then throttled by the capillary 4 and exchanged with outdoor air by the heat exchanger 5, thereby absorbing the outside air heat. , a heating operation is performed to warm the indoor air.

As is clear from the above explanation, thermal energy is discharged outdoors through the heat exchanger 5 during cooling operation.

The present invention focuses on the economic efficiency and safety of heat pump type air conditioning and heating equipment, and provides a heat pump type air conditioning and heating water heating equipment that can utilize exhaust heat during cooling operation and outside air heat to boil water for a bath.
This is an attempt to contribute to solving the above-mentioned problems.

Another object of the present invention is to provide a heat pump type air-conditioning/heating water heater that greatly contributes to reducing installation space and simplifying installation work by incorporating the entire device into the outer wall of a bathroom.

A further object of the present invention is to provide a heat pump type air-conditioning/heating water heating device that contributes to expanding the space of a bathtub and also contributes to integrating the entire device into an integrated unit.

The present invention provides a refrigerant compressor, a first heat exchange means for heating bath water, a four-way switching valve, a second heat exchange means for exchanging heat with indoor air, a refrigerant throttling resistance section, and a first heat exchange means for exchanging heat with outdoor air. A heat pump type air conditioning/heating system, which includes a heat exchange means (3) and a two-way solenoid valve, and is capable of switching and setting a plurality of operating modes by changing the refrigerant circulation circuit by switching between the four-way switching valve and the solenoid valve. The water heating device is a water heating device in which each component except the first heat exchange means is built into the outer wall of the side constituting the bathroom, the second heat exchange means is communicated with the living room, and the second heat exchange means is communicated with the living room. The third heat exchange means is communicated with the outside, and the first heat exchange means is disposed in a heating tank separate from the bathtub.

This will be explained below with reference to the drawings.

FIG. 2 shows a schematic configuration diagram of the apparatus of the present invention. In the figure, the same parts as in FIG. 1 are given the same numbers.

In this device, a bath heat exchanger 9 is inserted and connected between the discharge side of the refrigerant compressor 1 and the four-way switching valve 2,
Further, a solenoid valve 13 and a capillary 4' are connected in parallel to the indoor heat exchanger 3 and the capillary 4.
11, 12, and 14 are all solenoid valves. Each component except for the bath heat exchanger 9 is disposed within an outer wall 22 that forms a bathroom 20 and is in contact with the outside air. Moreover, the indoor heat exchange means including the indoor heat exchanger 3 and the indoor blower 7 is communicated with the living room through a duct 23 having an indoor air intake path and an indoor air discharge path at the upper part of the outer wall 22. ing. Further, the outdoor heat exchange means including the outdoor heat exchanger 5 and the outdoor blower 8 is configured to communicate with the outside air so that it can take in and exhaust the outside air. 25 is a reinforcing member.

The bath heat exchanger 9 is a heating tank 2 separated from the bathtub 21.
It is located within 8. The heating tank 28 is communicated with the bathtub 21 through upper and lower communication pipes 29, 29.

This device consists of a four-way switching valve 2 and a solenoid valve 11, 1.
The opening/closing operation of 2, 13, and 14 allows cooling operation, air conditioning and bath water boiling operation, heating operation,
Five operating modes can be realized: heating, bath water heating operation, and bath water heating operation.

Each operation mode will be explained below.

Cooling operation Refrigerant compressor 1 → Solenoid valve 11 → Four-way switching valve 2
(Solid line in the diagram) → Outdoor heat exchanger 5 → Capillary 4
→ Indoor heat exchanger 3 → Solenoid valve 14 → Four-way switching valve 2 (solid line in the figure) → Gas-liquid separator 6 → Refrigerant compressor 1
A refrigerant circulation circuit is formed. in this case,
Since the solenoid valve 12 is closed, the high-pressure high-temperature refrigerant from the refrigerant compressor 1 bypasses the bath heat exchanger 9. For this reason, heat is radiated outdoors by operating the outdoor blower 8, and by operating the indoor blower 7, the same operating mode as the cooling operation shown in FIG. 1 is achieved. Furthermore, bathtub 2
If there is water in the solenoid valve 12,
Open, solenoid valve 11 may be closed, or if solenoid valve 11 is open even if there is no water, solenoid valve 1
2 may be open.

Cooling and bath water heating operation Refrigerant compressor 1 → Solenoid valve 12 → Bath heat exchanger 9
→ Four-way switching valve (solid line in the diagram) → Outdoor heat exchanger 5
→ Capillary 4 → Indoor heat exchanger 3 → Solenoid valve 14
→ Four-way switching valve 2 (solid line in the diagram) → Gas-liquid separator 6
→A refrigerant circulation circuit called refrigerant compressor 1 is formed. Further, the solenoid valve 11 is closed. As a result, the high-pressure high-temperature refrigerant from the refrigerant compressor 1 exchanges heat with the water filled in the heating tank 28 in the bath heat exchanger 9 to heat water for the bath. Note that if the bath heat exchanger 9 radiates sufficient heat, the outdoor blower 8 does not need to be operated in the outdoor heat exchanger 5. In this operation, exhaust heat from cooling can be used effectively. Of course, in the indoor heat exchanger 3, the indoor air blower 7 is driven, and the indoor air is cooled by evaporation of the cooling liquefied heat medium sent through the capillary 4, thereby performing a cooling operation.

Heating operation Refrigerant compressor 1 → Solenoid valve 11 → Four-way switching valve 2
(Dotted line in the diagram) → Solenoid valve 14 → Indoor heat exchanger 3 →
Capillary 4 → Outdoor heat exchanger 5 → Four-way switching valve 2 (broken line in the figure) → Gas-liquid separator 6 and refrigerant compressor 1
A refrigerant circulation circuit is formed. In other words, the refrigerant compressor 1 is closed because the solenoid valve 11 is open and the solenoid valve 12 is closed.
The high-pressure, high-temperature refrigerant from the bath bypasses the bath heat exchanger 9. Therefore, heat is radiated into the room by the indoor heat exchanger 3 by operating the outdoor blower 7, and the outdoor blower 8 is also driven, resulting in the same operation mode as the heating operation shown in FIG.

Heating and bath water heating operation Refrigerant compressor 1 → Solenoid valve 12 → Bath heat exchanger 9
→ Four-way switching valve 2 (dashed line in the figure) → Solenoid valve 14 →
A refrigerant circulation circuit is formed: indoor heat exchanger 3 → capillary 4 → outdoor heat exchanger 5 → four-way switching valve 2 (broken line in the figure) → gas-liquid separator 6 → refrigerant compressor 1. Of course, the solenoid valve 11 is closed. In this operation, the high-pressure, high-temperature refrigerant from the refrigerant compressor 1 exchanges heat with the water filled in the heating tank 28 in the bath heat exchanger 9 to heat the bath water, and further heats the room by operating the indoor blower 7. The exchanger 3 radiates heat into the room to perform heating operation. The refrigerant leaving the indoor heat exchanger 3 is throttled by the capillary 4, evaporated in the outdoor heat exchanger 5 by the operation of the outdoor blower 8, exchanges heat with outdoor air, and returns to the refrigerant compressor 1.

Bath water heating operation Refrigerant compressor 1 → Solenoid valve 12 → Bath heat exchanger 9
→ Four-way switching valve 2 (dashed line in the figure) → Solenoid valve 13 →
A refrigerant circulation circuit is formed from the capillary 4' to the outdoor heat exchanger 5 to the four-way switching valve 2 (broken line in the figure) to the gas-liquid separator 6 to the refrigerant compressor 1. That is, here, by opening the solenoid valve 13 and closing the solenoid valve 14, the refrigerant that has sufficiently radiated heat in the bath heat exchanger 9,
The indoor heat exchanger 3 and capillary 4 are bypassed. The refrigerant is then evaporated in the outdoor heat exchanger 5 by operating the outdoor blower 8, exchanges heat with outdoor air, and returns to the refrigerant compressor 1. Therefore, the indoor blower 7 is stopped. Note that the bypass circuit using the solenoid valve 13 and the capillary 4' may be configured such that only the indoor heat exchanger 3 is bypassed by the solenoid valve 13. This type of operation is most suitable for spring and autumn when air conditioning or heating is not required.

The five operating modes described above can be freely switched and set by a switching control circuit using a manual switch, but since this is not the gist of the present invention, a detailed explanation will be omitted. It goes without saying that the four-way switching valve can be replaced by four two-way solenoid valves, or a three-way switching valve and a two-way solenoid valve.

As described above, according to this embodiment, not only can outside air heat and exhaust heat during cooling operation be used as a heat source for heating bath water, but also bath water can be heated during heating operation. If you do not need to consider cooling or heating only operation, use solenoid valve 1.
1 is omitted.

FIG. 3 shows an example of the installation structure of each component in FIG. 2.

Each component is incorporated within the exterior wall 22 of the bathroom 20. In other words, the outer wall 22 is hollow in a certain area facing the bathroom 20, and a glass plate 2 is placed in the center of the outer wall 22.
It has a window 27 fitted with a window 27, and is connected to the duct 23 at the upper part. The duct 23 communicates with the living room 30. Inside the outer wall 22, a cooling space is formed in the upper part surrounded by a heat insulating material and communicates only with the duct 23, and an indoor heat exchanger 3 is installed in this space.
and an indoor blower 7 are provided. At the bottom, an outdoor heat exchanger 5 is provided, through which an outdoor blower 8 is provided so as to be able to take in and exhaust outdoor air. Furthermore, a refrigerant compressor 1 is provided, and an outer wall 2
Piping for a bath heat exchanger 9 is led out into the bathroom 20 through the inner wall of the bathroom 20. Illustrations of refrigerant piping, four-way switching valves, solenoid valves, etc. are omitted.

As is clear from the above description, the air conditioning/heating water heater according to the present invention has the following features.

In addition to heating and cooling, bath water can be heated using outside air as a heat source, making it possible to use the device effectively throughout the year, increasing usage efficiency.

Since the exhaust heat released into the outside air during cooling operation can be used to heat bath water, the annual energy costs for air conditioning, heating, and hot water supply are significantly lower than in the past.

Since the device is built into the outer wall of the bathroom, space can be used effectively, especially in apartment complexes.

Since a device with the three functions of air conditioning and heating and bath water heating is integrated, it is possible to reduce the cost of the device itself and simplify the installation work.

By arranging the bath heat exchanger in a heating tank separate from the bathtub, the space in the bathtub can be increased, and there is no mechanical shock when cleaning the bathtub, and the connection between the heating tank and the main body of the device is reduced. It is also possible to create an integrated unit.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram of a conventional heat pump air-conditioning device, FIG. 2 is a schematic block diagram of an embodiment of the present invention, and FIG. 3 is a specific installation structure of the present invention. In the figure, 1 is a refrigerant compressor, 2 is a four-way switching valve, and 3 is a refrigerant compressor.
is an indoor heat exchanger, 4 and 4' are capillaries, 5 is an outdoor heat exchanger, 7 is an indoor blower, 8 is an outdoor blower,
9 is a bath heat exchanger, 11, 12, 13, 15 are solenoid valves, 20 is a bathroom, 21 is a bathtub, 22 is an outer wall, 2
3 is a duct, 27 is a window, 28 is a heating tank, and 30 is a living room.

Claims (1)

[Claims] 1 Refrigerant compressor, first heat exchange means for heating bath water, four-way switching valve, second heat exchange means for exchanging heat with indoor air, refrigerant throttling resistance section, third heat exchange means for heat exchange with outdoor air an exchange means, a two-way solenoid valve;
A heat pump type air-conditioning/heating water heating device capable of switching and setting a plurality of operation modes by changing the refrigerant circulation circuit by switching between the four-way switching valve and the solenoid valve, wherein the first heat exchange means is The removed components are incorporated into the outer wall of the side constituting the bathroom, the second heat exchange means is communicated with the inside of the living room, the third heat exchange means is communicated with the outside, and the first heat exchange means is communicated with the outside. A heat pump type air-conditioning/heating water heating device characterized in that the heat exchange means is disposed in a heating tank separate from the bathtub.