JPH07111266B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner, and more particularly to an air conditioner having a humidifying function such as an air handling unit or a packaged air conditioner.

[Prior art]

As an air conditioner having a conventional humidifying function, there is known an air conditioner including a ventilating type humidifier as disclosed in JP-A-57-104036 and JP-B-61-15460. There is.

[Problems to be Solved by the Invention]

In a conventional air conditioner, the humidifier is used for humidification or doubles as an eliminator, and the main air filter (colorimetric efficiency
(60 to 90%) are individually arranged for air cleaning, so there is a problem that the device becomes large.

Therefore, the main object of the present invention is to achieve miniaturization,
It is to provide an air conditioner.

[Means for Solving the Problems]

According to the present invention, in an air conditioner including an air filter, an air filter is provided downstream of a heat exchange coil in an air flow path, and humidifying water is supplied to the air filter, so that the air filter has a humidifying function. It is an air conditioner that is characterized by

[Action]

When humidifying during heating, humidifying water is supplied to the air filter from, for example, a sprinkling pipe. Therefore, the air taken into the air conditioner is heated by passing through the heat exchange coil and is then humidified at the same time as dust is removed by passing through the air filter.

〔The invention's effect〕

According to the present invention, since the air filter has a humidifying function, it is not necessary to separately arrange a humidifier for exclusive use of humidification or a dual-purpose eliminator, as described above.
The device can be downsized.

Moreover, since the air filter is disposable (generally a disposable one is used) and is replaced in one to one and a half years, even if impurities in the humidifying water or dust in the aeration are attached, it is only necessary to replace the air filter. As such, it does not require special cleaning, replacement, etc. as in conventional ventilated humidifiers.

Further, since the air heated by passing through the heat exchange coil and having the relative humidity lowered is supplied to the air filter, the air can be efficiently humidified in the air filter.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

〔Example〕

Referring to FIGS. 1A and 1B, an air conditioner 10 according to an embodiment of the present invention includes a housing 12. Inside the housing 12, the partition wall 14 forms two air passages, a first air passage 16 on the right side and a second air passage 18 on the left side.
These two air flow paths 16 and 18 are communicated with each other by a window 20 formed below the partition wall 14.

An intake port 22 for taking air into the air conditioner 10 is formed in the upper part of the first air flow path 16. A pre-filter 24 for removing relatively large dust is obliquely arranged below the second air flow path 18. A heat exchange coil 26 for heating or cooling is disposed above the pre-filter 24 in parallel therewith, and above the heat exchange coil 26, a main filter 28 (colorimetric Legal efficiency approx. 60
~ 90%) will be placed. On top of the main filter 28,
A humidifying water sprinkling pipe 32 having a plurality of water sprinkling nozzles 30 for supplying heated water is arranged to extend in the lateral direction.

A fan 34 for sucking air from the suction port 22 is arranged above the main filter 28. The outlet of the fan 34 communicates with the outlet 36 formed in the upper portion of the second air flow path 18. On the right side of the fan 34 is the motor that drives it.
38 are placed. The fan unit section 40 in which a fan unit including the fan 34 and the motor 38 is arranged is separated from other spaces by the partition wall 14 and the fan unit bottom plate 42 formed below the fan unit. The fan unit bottom plate 42 is formed with an opening 44 for taking in the conditioned air into the fan unit section 40.

Referring to FIG. 2, main filter 28 is made of, for example, paper, and is formed in a bellows shape with a fold line in the vertical direction in order to increase the contact area with air. During humidification, the main filter 28 is supplied with mist-like humidifying water from the humidifying nozzle 30 of the humidifying water sprinkling pipe 32 arranged laterally above the main filter 28. The amount of humidifying water is controlled by the control valve
Adjusted by 46. The numbers of the humidifying nozzles 30 and the humidifying water sprinkling pipes 32 may be arbitrary, and when two humidifying sprinkling pipes 32 are arranged, the second one is the main filter as shown by the chain double-dashed line in the figure. It is located almost in the middle of 28.

Returning to FIGS. 1A and 1B, the motor 38 provides a fan.
When 34 is driven, air flows as indicated by the arrow in the figure.
That is, the air taken into the first air passage 16 from the suction port 22 flows into the second air passage 18 from below the first air passage 16 through the window 20. The air taken into the second air flow path 18 is first subjected to removal of relatively large dust by the pre-filter 24, and then heat exchanged, that is, heated or cooled by the heat exchange coil 26. Then, the dust is further removed through the main filter 28.

The main filter 28 during humidification (during heating) is the humidification nozzle 30.
Since the humidifying water is supplied from and is humid, the air passing therethrough is humidified at the same time as dust is removed.

The air that has been subjected to dust removal, heat exchange, and humidification as described above is taken into the fan 34 through the opening 44, and is discharged from the discharge port 36 into the room to be air-conditioned.

The main filter 28 to which the impurities in the humidifying water and the dust in the aeration adhere may be periodically replaced at a cycle of one year to one and a half years.

According to this embodiment, since it is not necessary to separately provide a humidifier, which conventionally has a large air resistance, it is possible to reduce the air resistance and the blast power.

That is, during cooling, the main filter 28 is not humidified and is dry, and its air resistance is almost the same as that of the conventional main filter. Further, the heat exchange coil 26 is dehumidified and moist, and its air resistance is large, but it is not as high as that of the conventional humidifier. Therefore, the air resistance can be reduced as a whole, and the blowing power can be reduced during cooling. on the other hand,
At the time of heating, humidifying water is supplied to the main filter 28 to humidify it, and its air resistance increases, but the heat exchange coil 26 becomes dry and the air resistance is partially offset and does not increase significantly. . Further, even if the air resistance increases and the air flow rate decreases, the air flow rate during normal heating may be smaller than that during cooling, so there is no problem. Therefore, the blowing power can be reduced even during heating. Further, since the air that has been heated by passing through the heat exchange coil 26 and the relative humidity of which has been lowered is supplied to the main filter 28 during humidification, the air can be efficiently humidified in the main filter 28.

As a method of supplying the humidifying water to the main filter 28, in addition to the nozzle type of the above-described embodiment, the humidifying water is supplied from a gutter which is arranged at the upper part of the main filter 28 and has a hole at the bottom thereof. A method of dropping, a method of supplying humidifying water by utilizing a capillary phenomenon such as felt from a gutter arranged above the main filter 28, and a lower end of the main filter 28 being moistened in a pan arranged below the humidifying water. A method of immersing in water and supplying humidifying water by utilizing the capillarity of the main filter 28 can be used.

[Brief description of drawings]

1A and 1B are illustrative views showing one embodiment of the present invention, FIG. 1A is a front view, and FIG. 1B is an IB- in FIG. 1A.
It is a IB line sectional view. FIG. 2 is a perspective view showing a main filter and a humidifying water sprinkling pipe used in the embodiment of FIGS. 1A and 1B. In the figure, 10 is an air conditioner, 12 is a housing, 14 is a partition wall, 16 is a first air passage, 18 is a second air passage, 20 is a window, 22 is an inlet, 24 is a prefilter, 26 Is a heat exchange coil, 28 is a main filter, 30 is a humidifying nozzle, 32 is a humidifying water sprinkling pipe, 34 is a fan, 36 is a discharge port, and 40 is a fan unit section.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nobuo Terauchi 28 Hiraide Industrial Park, Utsunomiya City, Tochigi Prefecture Kubota Train Co., Ltd.Tochigi Plant (72) Sada Imamura 28 Hiraide Industrial Park, Utsunomiya City, Tochigi Prefecture Kubotat Lane Co., Ltd. In the Tochigi Plant (72) Inventor Satoshi Nakata 28 Hiride Industrial Park, Utsunomiya City, Tochigi Prefecture Kubota Train Co., Ltd. In the Tochigi Plant (56) References

Claims (1)

[Claims] 1. An air conditioner equipped with an air filter, wherein the air filter is provided downstream of a heat exchange coil in an air flow path, and humidifying water is supplied to the air filter to humidify the air filter. An air conditioner characterized by having both functions.