JPS6142025Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heat pump type air-conditioning/heating water heating device that uses a heat pump to boil hot water.

[Conventional technology and its problems]

Recently, combustion heat of gas or kerosene, or electric heat is generally used to boil hot water in homes.
However, all of these methods require high operating costs, and in addition, the heat of combustion poses a high risk of fire.

By the way, a device called a heat pump is attracting attention because it has low operating costs and is safe. Conventionally, heating and cooling systems using heat pumps have been constructed by combining an indoor unit and an outdoor unit. The indoor unit is attached to a wall inside the room, and the outdoor unit is placed, for example, on a balcony. However, in that case, there are problems such as the indoor unit protruding into the room due to its thickness, and the outdoor unit becoming a foothills or reducing the floor space of a balcony or the like. Also, there was waste in that the air conditioner was not used at all during the intermediate period when air conditioning or heating was not required.

On the other hand, as shown in Japanese Utility Model Publication No. 51-16533, a heated liquid inlet and a mixed liquid outlet are provided facing each other at one end of the elongated cylindrical body, and a heated liquid inlet is provided at the other end. A compressed gas injection hole is provided near the heated liquid supply port, and gas is ejected from the compressed gas injection hole to push up the heated liquid. There is known an apparatus that brings the heated liquid that has arrived at the inlet into contact with the heated liquid to form a mixed state, and in this mixed state, the two liquids exchange heat to generate heated liquid of a uniform temperature.

However, although this device makes the temperature of the liquid in the tank uniform through the stirring action of the compressed gas, the compressed gas is not configured to flow into the heater outside the tank.

Therefore, the purpose of the present invention is to provide an air blowing means at the bottom or a lower position of the heat exchanger for water boiling, to agitate the hot water in the bathtub and to improve the heat transfer coefficient of the heat exchanger for water boiling. It is in.

As a result, the present invention reduces the size of the heat exchanger for flo water boiling, increases the effective volume inside the bathtub, and further increases the heat transmission coefficient of the heat exchanger for flo water boiling, promoting heat exchange and reducing the time required for flo water boiling. This is an attempt to shorten the time period.

Furthermore, it is an object of the present invention to extend the air blowing means between both sides of the heat exchanger for water heating so that foreign objects or hands cannot easily enter from the lower part or the lower position of the heat exchanger for water heating. The purpose is to do so.

[Means for solving problems]

In order to achieve the above object, the present invention is an outdoor heat exchanger, an indoor heat exchanger, a flow water heater heat exchanger,
In a heat pump type air-conditioning/heating water heater comprising a refrigerant circuit switching valve, a compressor, etc., the surface of the flow water heating heat exchanger extended along the bathtub side wall opposite to the corresponding surface of the bathtub side wall is covered with a cover plate. Further, an air blowing means is provided at a lower part or a lower position of the heat exchanger for boiling hot water, extending between both ends of the heat exchanger for boiling hot water and discharging air, and air is discharged from the air blowing means. It is characterized in that the air is passed through the heat exchanger for water heating.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the heat pump type air-conditioning/heating water heating device according to the present invention installed in a building. In FIG. 1, an outdoor heat exchanger 4, a compressor 5, and an air pump 6 are installed at a relatively lower position of a room wall 3 between a bathroom 1 and an outdoor room 2. The area in which the outdoor heat exchanger 4, compressor 5, and air pump 6 are installed is an open area 7 that communicates with the outdoors 2. Furthermore, heat exchange in the outdoor heat exchanger 4 is facilitated by ventilation by a fan 8. Note that 9 is a window for lighting.

Further above the window 9, that is, at a relatively upper position of the chamber wall 3, a heat exchanger 10 for controlling the indoor temperature is installed. The area in which this indoor temperature control heat exchanger 10 is installed is a heat insulating area 11 that is isolated from both the bathroom 1 and the outdoors 2.

Further, inside the bathtub 12 of the bathroom 1, a heat exchanger 13 for boiling hot water and an air hose 14 connected to the air pump 6 are disposed, and an air blowing part 14a of the air hose 14 is used to heat the heat exchanger 13 for boiling hot water. It is located below the exchanger 13.
In addition, the compressor 5 and the three heat exchangers 4,
10 and 13 are connected using a capillary, an accumulator, etc. so as to constitute one heat pump circuit. Furthermore, by using an appropriate refrigerant circuit switching means such as a four-way valve, the heat exchangers 4, 10, and 13 can be made to function as condensers.
It can be activated or deactivated as an evaporator.

An example of a refrigerant circuit for such a heat pump is shown in FIG. In FIG. 2, 22 is a four-way valve for switching the connection between the outdoor heat exchanger 4 and the indoor temperature control heat exchanger 10, 23 is a solenoid valve for bypassing the flow water heating heat exchanger 13, and 24 is a solenoid valve for bypassing the flow water heating heat exchanger 13. is a capillary, and 25 is a gas-liquid separator. Note that solid line arrows indicate the flow of refrigerant when a room other than bathroom 1 is cooled, and dashed line arrows indicate a flow of refrigerant when heating a room other than bathroom 1.

Incidentally, an air duct 15 is provided on the upper surface of the ceiling 1a of the bathroom 1. One end of this air duct 15 is connected to the heat insulation area 11, and the other end is connected to the bathroom 1, for example.
This opens into a separate room 17 separated by a door 16. In this way, the air duct 15 is connected to the bathroom 1
The ceiling 1a extends along the top surface of the ceiling 1a. Note that 181 indicates the ceiling surface of the separate room 17.

By further combining such an air duct 15 with a fan motor 18 provided in the heat insulation area 11, for example, the air in the separate room 17 is circulated around the heat exchanger 10 for controlling indoor temperature, thereby cooling or cooling the separate room 17. To be able to heat the room. Note that 19 indicates the flow of intake air into the air duct 15, and 20 indicates the flow of discharge air from the air duct 15.

FIG. 3 shows the main parts of the present invention in which a heat exchanger for water heating is placed in a bathtub.

The heat exchanger 13 for boiling hot water is introduced into the bathroom 1 via a flexible pipe 26 and extends along the side wall of the bathtub, and more specifically, the pipe snakes inside the bathtub 12 to increase the heat exchange area. . An air hose 14 is provided below this heat exchanger 13.
An air blowing section (air blowing means) 14a is arranged, and the air hose 14 is connected to an air pump 6.
It is connected to the. Further, the heat exchanger 13 has a cover plate 27 covering the surface opposite to the corresponding surface of the bathtub side wall, that is, the refrigerant introduction part from the flexible pipe 26 to the main body of the heat exchanger 13, and the main surface of the cover plate 27. has a hole 27a for convection in its upper part, and a gap 27b for convection between the lower end of the cover plate 27 and the bottom wall of the bathtub 12.

FIG. 4 shows another embodiment of the present invention, in which a heat exchanger 13 for boiling hot water is placed in the bathtub 12 and has a heat exchanger pipe 30 meandering in its lower part. An air blowing tube (air blowing means) 32 is attached which extends between the plates 31 and 31 and has an air blowing hole 32a for blowing out air. The air blowing cylinder 32 is connected to the air pump 6 via an air pipe 33.

[Effect]

In the present invention configured as described above, when boiling water, firstly, flow water is poured into the bathroom up to the position shown by the dashed line in FIG. and liquefy. The water heated by this heat dissipation action rises due to the presence of the cover plate 27 and moves to the upper part of the water surface through the hole 27a. Further, the cold water in the lower part of the bathtub is sucked through the gap 27b below the cover plate 27 and moves to the lower part of the heat exchanger 13. The above movement promotes convection as shown by the arrows in FIG. Furthermore, since the air sent from the air pump 6 is blown out from the lower part of the heat exchanger 13 for water boiling, the turbulence generated when the air 28 passes through the heat exchanger 13 for water heating Therefore, the heat transmission coefficient of the heat exchanger 13 for boiling water is increased,
Promote heat exchange.

Note that the structure for mounting the air pump 6 is not limited to the structure in which it is mounted inside the main body of the water heating device as in this embodiment, but the air pump may be provided separately from the water heating device.

[Efficacy of invention]

As explained above, the device of the present invention has the following effects.

An air blowing means is provided at the bottom or below of the heat exchanger for boiling hot water, and the air blown out from the blowing means stirs the hot water and creates turbulence in the heat exchanger for boiling hot water. It is possible to increase the heat transmission coefficient of the water boiling heat exchanger, shorten the water boiling time, and save energy.

Since the heat exchanger for water heating can be reduced in size, it is possible to increase the effective volume inside the bathtub.

By extending the air blowing means between both ends of the heat exchanger for boiling hot water, foreign objects and hands cannot easily enter from the lower part or the lower position of the heat exchanger for boiling hot water, which is excellent in terms of safety.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an embodiment of the present invention combined in a bathroom, Fig. 2 is a diagram showing an example of a refrigerant circuit of a heat pump used, and Fig. 3 is an embodiment of the present invention. FIG. 4 is a partial perspective view showing the main parts of another embodiment of the present invention. 4... Outdoor heat exchanger, 5... Compressor,
6... Air pump, 10... Heat exchanger for indoor temperature control, 12... Bathtub, 13... Heat exchanger for boiling hot water, 14... Air hose, 14a... Air blowing part.

Claims (1)

[Scope of utility model registration request] In a heat pump type air-conditioning/heating water boiling device consisting of an outdoor heat exchanger, an indoor heat exchanger, a heat exchanger for a flow water heater, a refrigerant circuit switching valve, a compressor, etc., the heat exchanger for the flow water boiler is installed along the side wall of the bathtub. A cover plate covers a surface of the exchanger opposite to the corresponding surface of the bathtub side wall, and further extends between both ends of the heat exchanger for boiling water at a lower part or a position below the heat exchanger for boiling water. 1. A heat pump type air-conditioning/heating water boiling device, characterized in that an air discharge means for discharging air is provided, and the air discharged from the air discharge means is made to pass through the inside of the heat exchanger for water boiling.