JP2003161475A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner which efficiently humidifies the air heated by a hot water heat exchanger in performing the heating operation while supplying the hot water to the hot water heat exchanger. <P>SOLUTION: In this air conditioner having the hot water heat exchanger besides a refrigerant heat exchanger, and further comprising an indoor unit having a vaporizing humidifier, the hot water heat exchanger 24 is divided into a plurality of heat exchange parts 24A, 24B, and the vaporizing humidifier 45 is inserted into a clearance between the heat exchange parts 24A, 24B of the hot water heat exchanger. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner equipped with a hot water heat exchanger.

[0002]

2. Description of the Related Art Generally, there is known an air conditioner having an indoor unit having a hot water heat exchanger in addition to a refrigerant heat exchanger and further an evaporative humidifier.

In this type of air conditioner, conventionally, the refrigerant heat exchanger is divided into a plurality of heat exchange sections, and the vaporization type humidifier is provided between a part of the heat exchange section and the hot water heat exchanger. Is inserted and arranged.

[0004]

However, in the conventional structure, the hot water heat exchanger is located on one surface of the vaporization type humidifier, and the heat exchange section of the refrigerant heat exchanger is located on the other surface. When supplying hot water to the hot water heat exchanger to perform heating operation, the air heated by the hot water heat exchanger is introduced only from one side of the vaporization type humidifier, and this high temperature air can be efficiently humidified. There is a problem that you cannot do it.

Therefore, an object of the present invention is to provide an air conditioner capable of efficiently humidifying air heated by the hot water heat exchanger when hot water is supplied to the hot water heat exchanger for heating operation. Especially.

[0006]

The invention according to claim 1 is
In an air conditioner that has a hot water heat exchanger in addition to a refrigerant heat exchanger, and an indoor unit that also has a vaporization type humidifier, the hot water heat exchanger is divided into multiple heat exchange parts, and this hot water heat exchange is performed. The vaporization type humidifier is inserted and arranged in a gap formed between the heat exchange parts of the container.

According to a second aspect of the present invention, in the air conditioner having a hot water heat exchanger in addition to the refrigerant heat exchanger and an indoor unit having a vaporization type humidifier, a plurality of hot water heat exchangers are provided. Divided into heat exchange parts, a part of the heat exchange parts of this hot water heat exchanger is arranged on the rear side of the indoor unit, and the rest of the heat exchange parts of the hot water heat exchanger is placed on the front side of the indoor unit. It is characterized in that the vaporization type humidifier is inserted and arranged in a gap formed between the heat exchange portions on the front surface side and the rear surface side.

According to a third aspect of the present invention, in the first or second aspect, the heat exchange parts of the hot water heat exchanger are arranged in a substantially V shape, and are formed between the heat exchange parts. The vaporizer-type humidifier is inserted and arranged in the gap.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the refrigerant heat exchanger and the heat exchange section of the hot water heat exchanger are integrally formed, and the heat It is characterized in that the exchanging portion is configured to have a length of one pipe meandering.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing an embodiment of an air conditioner according to the present invention.

As shown in FIG. 1, the air conditioner 10
Has an outdoor unit 11, an indoor unit 12, and a hot water supply unit 13, and an outdoor refrigerant pipe 14 of the outdoor unit 11 and an indoor refrigerant pipe 15 of the indoor unit 12 are connected via connecting pipes 16 and 17. .

The outdoor unit 11 is arranged outdoors,
A compressor 18 is arranged in the outdoor refrigerant pipe 14, and an accumulator 19 and a muffler 20 are sequentially arranged on the suction side of the compressor 18 in the outdoor refrigerant pipe 14 from the compressor 18 side. The outdoor heat exchanger 21 and the electric expansion valve 22 are sequentially arranged on the discharge side of the compressor 18 from the compressor 18 side.

An outdoor fan (not shown) that blows air toward the outdoor heat exchanger 21 is disposed adjacent to the outdoor heat exchanger 21.

The indoor unit 12 is installed indoors,
The indoor refrigerant pipe 15 is provided with an indoor refrigerant heat exchanger 23 and an indoor hot water heat exchanger 24.
These indoor refrigerant heat exchanger 23 and indoor hot water heat exchanger 2
The indoor heat exchanger 25 is constituted by 4. In the indoor unit 12, a blower (cross flow fan) 26 that blows indoor air to the indoor heat exchanger 25 is arranged near the indoor heat exchanger 25 (see FIG. 2).

The hot water supply unit 13 has a heat source device 27, and the heat source device 27 heats the water supply supplied from the heat source device water supply pipe 28 to produce hot water. The hot water can be discharged to the outside from a faucet (not shown) and can be circulated between the indoor hot water heat exchanger 24 of the indoor unit 12 and the heat source device 27.

That is, the heat source unit 27 and the indoor hot water heat exchanger 2
4 is connected by a hot water outgoing pipe 29 for sending hot water from the heat source device 27 to the indoor hot water heat exchanger 24, and a hot water return pipe 30 for returning hot water from the indoor hot water heat exchanger 24 to the heat source device 27.

A flow rate variable valve 31 for adjusting the flow rate of the hot water flowing through the hot water going pipe 29 is provided in the hot water going pipe 29. By supplying hot water from the heat source device 27 to the indoor hot water heat exchanger 24, the indoor air passing through the indoor hot water heat exchanger 24 is heated by heat exchange.

When a cooling operation is selected and instructed by a remote controller (not shown) or the like, the control device (not shown) closes the variable flow rate valve 31 and also controls the compressor 18 and the outdoor fan of the outdoor unit 11. And the cross flow fan 26 is started. As a result, the indoor refrigerant heat exchanger 23 of the indoor unit 12 functions as an evaporator, and the indoor refrigerant heat exchanger 23 cools the indoor air introduced into the indoor unit 12 to cool the room.

When the heating operation is selected and instructed by the remote controller or the like, the outdoor unit 11
Compressor 18, outdoor fan and cross flow fan 26
Is stopped and the flow rate variable valve 31 is opened to circulate the hot water from the heat source device 27 with the indoor hot water heat exchanger 24. The indoor hot water heat exchanger 24 heats the indoor air guided into the indoor unit 12 by the crossflow fan 26 to heat the room.

Here, in the control device, the room temperature detected by the room temperature sensor 32 installed in the indoor unit 12 during the above-described cooling operation or heating operation is substantially equal to the set temperature set by the remote controller or the like. Thus, the cooling operation or the heating operation is controlled.

The indoor unit 12 is, as shown in FIG.
It can be attached to the wall of a room. This indoor unit 12
The rear casing 35 mainly covers the back side and the front casing 36 mainly covers the front side. The rear casing 35 and the front casing 36 form a casing, and the indoor refrigerant heat exchanger 23, the indoor hot water heat exchanger 24, and the crossflow fan 26 are housed in a space surrounded by the casing. Air suction ports 37A, 37B and 37C are formed in the front casing 36, and the front casing 36 includes the rear casing 3
It is configured such that it can be attached to and detached from, or can be opened and closed. An air outlet 38 is formed between the rear casing 35 and the front casing 36.

The indoor refrigerant heat exchanger 23 is divided into three heat exchange parts 23A, 23B and 23C. In the front space A formed inside the casing, the first heat exchange section 2
3A is arranged, and in the upper surface side space B, second and third heat exchange parts 23B and 23C are arranged in a V shape in the drawing.

In the present embodiment, the indoor hot water heat exchanger 24
Is divided into two heat exchange parts 24A and 24B.
And one heat exchange part 24A is overlapped and arrange | positioned at the inner surface side of the 3rd heat exchange part 23C arrange | positioned at the rear surface side of the indoor unit 12, and the other heat exchange part 24B is the indoor unit 1.
The heat exchange parts 24A, 24B are arranged on the front side of
Are arranged in a substantially V shape. These heat exchangers 2
A cross flow fan 26 is arranged inside the units 3 and 24.

Second heat exchange section 23B (indoor refrigerant heat exchanger)
And the other heat exchange part 24B (indoor warm water heat exchanger) are integrally formed. Reference numeral 49 is a fin cut line (FIG. 3), and the heat exchanging portions 23B and 24B are thermally cut off with the fin cut line 49 as a boundary. The other heat exchanging portion 24B does not need to be so long, and as shown in the figure, for example, is configured to have a length of one pipe meander.

First heat exchange section 23A, second heat exchange section 23B
The drain of the other heat exchange portion 24B is the front drain receiver 4
The drain of the third heat exchange portion 23C and the drain of the one heat exchange portion 24A are received by the back surface drain receiver 43.

The rear drain receiver 43 communicates with the front drain receiver 41 via a drainage channel (not shown) having a downward slope.

Further, a gap is formed between one heat exchange portion 24A and the other heat exchange portion 24B, which are arranged in a V shape in FIG. 2, and the cross flow fan 26 is provided in this gap. The vaporization type humidifier 45 is inserted and arranged along the flow direction of the air sucked in. This vaporization type humidifier 45
As shown in FIG. 3, the case includes a case 46 that extends the full width of the second heat exchange portion 23B, and a humidifying element 47 that is detachably inserted into the case 46.

The case 46 includes heat exchange parts 24B, 24.
Flanges 51 and 52 that are locked to the upper edge of A are provided. The flanges 51 and 52 are made of, for example, soft resin, and the flanges 51 and 52 hermetically seal the gaps between the heat exchange portions 24B and 24A. Therefore, the heat exchange parts 24B, 24
There is no air leakage from the gap A.

In the case 46, as shown in FIG.
A dome-shaped head 46A is formed, and this dome-shaped head 46
A sprinkler pipe 46B is arranged in A.

As shown in FIG. 3, this sprinkler pipe 46B is
A humidification water supply pipe 40 (FIG. 1) that guides a part of the water supply supplied to the heat source device 27 is connected via a pipe 53, and a heat valve 44 is connected to the humidification water supply pipe 40.

The humidifying water supply pipe 40 is at least one of a hot water outgoing pipe 29 for sending hot water from the heat source device 27 to the hot water heat exchanger 24 and a hot water returning pipe 30 for returning hot water from the hot water heat exchanger 24 to the heat source device 27. Is preferably placed in contact with.

The hot water from the sprinkling pipe 46B collides with the dome-shaped inner wall of the dome-shaped head portion 46A, then flows out along the dome-shaped portion, and the humidifying element 4 arranged at an inclination.
It is dripped at 7. This ensures reliable dripping onto the humidifying element 47. The warm water dropped here humidifies the warm air during the heating operation, and the residual water (drain) is received by the residual water receiving portion 46C. The residual water collected in the residual water receiving section 46C is recovered by the rear drain receiver 43 of the third heat exchanging section 23C through the residual water channel 46D, and a drainage channel (not shown) having a downward slope is drawn from here. It is collected in the front drain receiver 41 via the. The residual water channel 46D is
As shown in FIG. 3, it is formed at both ends of the case 46 so as not to project into the air passage.

The humidifying element 47 is housed in an element holder 48, and a grip 48A is formed on the element holder 48. Although illustration is omitted, when the front casing 36 is opened, the humidifying element 47 faces the front of the casing together with the element holder 48 so as to be taken out.

The humidifying element 47 is made of a material such as sponge that easily contains water. When air passes through the humidifying element 47, the humidifying element 47
The water inside is naturally evaporated, and the air blown into the room from the air outlet 38 is humidified. This humidification is mainly performed during the heating operation of the air conditioner 10.

As shown in FIG. 1, the humidifying water supply pipe 40 for supplying water to the humidifying element 47 is branched from the heat source device water supply pipe 28, and is clean before being supplied to the heat source device water supply pipe 28. Guide the water supply to the humidification element 47.

The humidifying water supply pipe 40 is provided with a thermal valve 44 for adjusting the flow rate of the water flowing in the humidifying water supply pipe 40. By adjusting the opening of the thermal valve 44, the amount of water supplied to the humidifying element 47 is controlled.

In the present embodiment, the indoor hot water heat exchanger 24 is divided into two heat exchange parts 24A and 24B, and these heat exchange parts 24A and 24B are arranged in a substantially V-shape, and a gap formed between them. The vaporization type humidifier 45 is inserted and arranged in the.

Therefore, when hot water is supplied to the indoor hot water heat exchanger 24 for heating operation, the two heat exchange parts 24A, 24 are used.
The warm air warmed through B is sucked in from both sides of the vaporization type humidifier 45, and is blown through the vaporized humidifier 45. Therefore, the difference in the wet-bulb temperature before and after the humidification element 47 is increased, and vaporization is performed as in the conventional case. The humidifying performance can be significantly improved as compared with the type humidifier 45 having a structure in which suction is performed from one side. Further, since the air is blown through the two heat exchanging portions 24A and 24B, the amount of warm air increases, so that the amount of humidification of the evaporative humidifier 45 can be increased.

In the above construction, the two heat exchange parts 24A, 2
It is desirable to set the total capacity of 4B and the capacity of the conventional indoor hot water heat exchanger to be equal. According to this, the capacity of the indoor hot water heat exchanger 24 is not increased, and the heat exchange section 24A,
By dispersing in 24B, it is possible to improve the humidification amount or the humidification performance.

Further, since the heat exchanging portion 24B of the indoor hot water heat exchanger 24 is arranged near the front side of the evaporative humidifier 45, when the cooling operation is performed by flowing the refrigerant into the indoor refrigerant heat exchanger 23, the vaporization is performed. The amount of cold air that impinges on the humidifier 45 is reduced, and it is possible to prevent the vaporization humidifier 45 from being exposed to the case 46.

Although the present invention has been described based on the above embodiment, the present invention is not limited to this.

The humidifying water supply pipe 40 is described as being in contact with both the hot water going pipe 29 and the hot water returning pipe 30, but either one of the hot water going pipe 29 and the hot water returning pipe 30 may be brought into contact therewith. . Further, in the air conditioner 10 described above, the hot water supply unit 13 is described as being installed separately from the outdoor unit 11, but it may be arranged inside the outdoor unit 11. Further, the thermal valve 44 may be a normal control valve whose opening is adjusted by the control device.

[0044]

In these inventions, the hot water heat exchanger is divided into a plurality of heat exchange parts, and the vaporization type humidifier is inserted and arranged in the gap formed between these heat exchange parts, so that each heat exchange part is exchanged. The warm air that has been warmed through the section is sucked from both sides of the vaporization type humidifier, and is blown through it, so it is more humidified than the conventional structure in which it is sucked from one side The performance can be improved.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of an air conditioner according to the present invention.

FIG. 2 is a cross-sectional view showing an indoor unit of the air conditioner of FIG.

FIG. 3 is an exploded perspective view showing a vaporization type humidifier.

[Explanation of symbols]

10 Air conditioner 11 outdoor unit 13 Hot water supply unit 23 Indoor Refrigerant Heat Exchanger 23A, 23B, 23C heat exchange section 24 Indoor hot water heat exchanger 24A, 24B heat exchange section 26 cross flow fan 45 Evaporative humidifier 46 cases 47 Humidification element

Claims (4)

[Claims] 1. An air conditioner having an indoor unit having a hot water heat exchanger in addition to a refrigerant heat exchanger and further having a vaporization type humidifier, wherein the hot water heat exchanger is divided into a plurality of heat exchange parts. An air conditioner in which the vaporization type humidifier is inserted and arranged in a gap formed between the heat exchange portions of the hot water heat exchanger. 2. In an air conditioner having an indoor unit having a hot water heat exchanger in addition to the refrigerant heat exchanger and further having a vaporizing humidifier, the hot water heat exchanger is divided into a plurality of heat exchange parts. , A part of the heat exchange part of the hot water heat exchanger is arranged on the rear surface side of the indoor unit, and the rest of the heat exchange part of the hot water heat exchanger is arranged on the front surface side of the indoor unit. An air conditioner in which the vaporization type humidifier is inserted and arranged in a gap formed between the heat exchange portions on the rear surface side. 3. The heat exchange parts of the hot water heat exchanger are arranged in a substantially V shape, and the vaporization type humidifier is inserted and arranged in a gap formed between the heat exchange parts. The air conditioner according to claim 1 or 2. 4. The refrigerant heat exchanger and the heat exchange part of the hot water heat exchanger are integrally formed, and the heat exchange part is configured to have a length substantially equal to one meandering of the pipe. The air conditioner according to any one of claims 1 to 3.