JP2593579B2 - Air filter and humidifying media - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air filter and a humidifying medium, and more particularly to an air handling unit and an air conditioner such as a packaged air conditioner, which has both an air cleaning function and a humidifying function. The present invention relates to a novel air filter and humidifying medium.

(Prior art)

Conventionally, there has been no air filter and humidification medium of this kind.

[Problems to be solved by the invention]

Therefore, conventionally, the main air filter and the humidifier have to be separately prepared, and when these are arranged inside the air conditioner, the internal structure of the air conditioner becomes complicated and the size increases. There was a problem that it would.

Therefore, a main object of the present invention is to provide an air filter and a humidifying medium that can simplify the internal structure of an air conditioner and can reduce the size.

[Means for solving the problem]

The first filter medium and the second filter medium are arranged so that a low-density hydrophilic first filter medium is disposed upstream of the air and a high-density water-repellent second filter medium is disposed downstream of the air. This is an air filter and humidifying medium which is folded in a zigzag shape by closely contacting a material and supplying humidifying water from an upstream side.

[Action]

When humidifying, humidifying water is supplied to the low-density and hydrophilic first filter medium from the upstream side of the air. Therefore, the humidifying water permeates the first filter medium and humidifies the air passing through the air filter and the humidifying medium. The first filter medium removes relatively large dust, and the high-density and water-repellent second filter medium removes smaller dust. Further, the humidifying water is prevented from riding on the airflow and scattering to the downstream side by the second filter medium.

〔The invention's effect〕

According to the present invention, dust removal and humidification can be performed at the same time, so that the humidifier and the main air filter do not need to be separately arranged as in the related art, and therefore, the internal structure of the air conditioner can be simplified. It can be made smaller.

Also, relatively large dust is removed by the first filter medium,
Since the second filter medium removes even smaller dust, high dust removal efficiency can be obtained.

Then, the humidified water is removed by the second water repellent second filter medium.
Since it is possible to prevent the water from being scattered downstream after passing through the filter medium, sufficient humidification water can be included in the first filter medium, and high humidification performance can be obtained. When the supply amount of the humidifying water is large or when the passing wind speed is high, the humidifying water may pass through the second filter medium. By arranging the third filter medium in close contact, it is possible to prevent the humidifying water from scattering even in such a case.

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

〔Example〕

Referring to FIGS. 1A and 1B, air filter and humidifying medium 10 of this embodiment includes first filter medium 12 folded in a zigzag shape so as to secure a larger contact area with air. . The first filter medium 12 is disposed on the upstream side of the air, and is formed of a low-density, hydrophilic (water-permeable property) material. In addition, the thickness of the first filter medium 12 is relatively thick so that the humidifying water can be sufficiently absorbed and the strength of the air filter and humidifying medium 10 can be sufficiently ensured.

The first filter medium 12 is made of a high-density, water-repellent (water-repellent) material.
Is adhered. Therefore, the first filter medium 12 is located on the upstream side,
The second filter member 14 is folded in a zigzag manner in a state where both are in close contact with each other such that the second filter member 14 is on the downstream side. In addition, the second filter medium 14
It is formed to be thinner than the first filter medium 12 in order to reduce the air resistance.

The zigzag folded surface of the air filter and humidifying medium 10 has a direction in which air flows to both ends of the folding width (the left-right direction in FIG. 1B) (indicated by arrows in FIGS. 1A and 1B). Are adhered by a string-like adhesive material 16 which extends in parallel with and is distributed in the height direction (the vertical direction in FIG. 1A). Thereby, the zigzag shape of the air filter and humidifying medium 10 is maintained.

The air filter and humidifying medium 10 is, for example, 2A
It is used for an air conditioner 18 as shown in FIG. 2 and FIG. 2B.

The air conditioner 18 includes a casing 20. Inside the casing 20, a first chamber 24 is formed on the right side and a second chamber 26 is formed on the left side by the partition wall 22. These two chambers 24 and 26 are connected by an opening 28 formed in the lower part of the partition wall 22. The upper end of each of the first chamber 24 and the second chamber 26, that is, the upper surface of the casing 20, has a suction port 30 on the right side.
However, an air outlet 32 is formed on the left side.

The second chamber 26 is vertically divided into two parts by a fan unit bottom plate 34 formed in an upper part inside thereof, and a heat exchange section 36 is formed on a lower side and a fan unit section 38 is formed on an upper side. The heat exchange section 36 and the fan unit section 38 are communicated by an opening 40 formed in the fan unit bottom plate 34.

Below the heat exchange section 36, a pre-filter 42 for removing relatively large dust is disposed obliquely, and above the pre-filter 42, a heat exchange coil 44 for heating or cooling is disposed in parallel with the pre-filter 42. . And this heat exchange coil
An air filter and humidifying medium 10 (FIGS. 1A and 1B) is arranged above and parallel to 44 with the first filter medium 12 on the lower side (upstream side).

Further, a humidification water having a plurality of humidification nozzles 46 for supplying mist humidification water to the air filter / humidification medium 10 is provided at a position between the heat exchange coil 44 on the upstream side and near the upper portion of the air filter / humidification medium 10. A sprinkler pipe 48 is arranged to extend in the horizontal direction in FIG. 2A. The humidification water sprinkling pipe 48 is provided with a control valve 50 for adjusting the amount of humidification water as needed.

The fan unit section 38 includes a fan 52 for blowing air conditioned air into the room to be air conditioned from the air outlet 32.
Is arranged, and a motor 54 for driving the fan 52 is arranged on the right side of the fan 52.

In the air conditioner 18 thus configured, the motor
When the fan 52 is driven by 54, air flows as shown by arrows in FIGS. 2A and 2B. That is, the inlet 30
The air taken into the first chamber 24 from above flows into the second chamber 26 through the opening 28. Then, relatively large dust is first removed from the air taken into the second chamber 26 by the pre-filter 42, and then the heat is exchanged, that is, heated or cooled by the heat exchange coil 44. Then, dust is further removed through the air filter / humidifying medium 10.

At the time of humidification, humidification water is supplied from the humidification nozzle 46 to the air filter / humidification medium 10 (first filter medium 12), so that 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 processing in this way is taken into the fan 52 through the opening 40, and is blown into the room to be air-conditioned through the blower opening 32.

According to this embodiment, it is not necessary to separately dispose the humidifier and the main air filter as in the prior art, so that the internal structure of the air conditioner 18 can be made simpler and more compact.

Further, according to this embodiment, the humidified water absorbed in the first filter medium 12 can be prevented from being scattered by the airflow by the second water-repellent medium 14 which is difficult to pass the humidified water. Sufficient humidification water can be contained in the first filter medium 12, and therefore sufficient humidification performance can be obtained.

Then, after relatively large dust is removed by the low-density first filter medium 12, even smaller dust is removed by the high-density second filter medium 14, so that high dust removal efficiency can be obtained.

In addition, since it is not necessary to separately provide a humidifier having a large air resistance, the air resistance can be reduced and the blowing power can be reduced. That is, during cooling, the air filter and humidifying medium 10 is dry without humidification, and its air resistance is almost the same as that of the conventional main filter. Further, the heat exchange coil 44 is dehumidified and moist and has a large air resistance, but not as much as a conventional humidifier. Therefore, the air resistance can be reduced as a whole, and the blowing power during cooling can be reduced. On the other hand, at the time of heating, humidification water is supplied to the air filter and humidification medium 10 for humidification, but since the first filter medium 12 that absorbs the humidification water has a low density, the air resistance greatly increases. do not do. Further, even if the air resistance is increased and the amount of air is reduced, the amount of air to be blown during normal heating may be smaller than that during cooling, so there is not much problem. Therefore, the blowing power can be reduced even during heating.

Further, according to this embodiment, the adhesive 16 for holding the zigzag shape is arranged in a string shape extending in a part of the fold width (the end in this embodiment) in parallel with the direction of air flow. Humidified water supplied from the upper part on the upstream side
It is possible to prevent the air from flowing down the surface of the filter medium 12 and move downward, and furthermore, the increase in air resistance due to the adhesive 16 can be minimized.

In this embodiment, the fold surface is bonded only at the end of the fold width, but the fold surface on the downstream side that does not include humidifying water is bonded over the entire width of the fold width. You may. In addition, as long as the zigzag shape can be maintained, the respective folding surfaces may be bonded at, for example, the center of the folding width.

Referring to FIGS. 3A and 3B, the air filter and humidifying medium 60 of another embodiment is further provided on the downstream side of the second filter medium 14 in the previous embodiment with a low-density hydrophilic material. The third filter medium 62 to be formed is arranged in close contact with the humidifier so that the humidifying water can be more completely prevented from scattering. That is, in the air filter and humidification medium 10 of the previous embodiment, when the supply amount of the humidification water is large or when the passing wind speed is high, the humidification water passes through the second filtration material 14 and the second filtration material A polka dot was formed on the downstream side surface (depending on the water repellency of the second filter medium 14), and there was a risk of being scattered in the air flow. Therefore, in this embodiment, the humidifying water is
Even when the humidified water passes through 14, the third filter medium 62 can absorb the humidified water so that the humidified water can be more completely prevented from scattering.

According to this embodiment, the passing air can be humidified by the humidification water absorbed by the third filter medium 62,
The humidifying effect can be further improved.

[Brief description of the drawings]

1A and 1B are illustrative views showing one embodiment of the present invention. FIG. 1A is a perspective view, and FIG.
FIG. 4 is a sectional view taken along line IB. 2A and 2B are illustrative views showing the use state of the embodiment of FIGS. 1A and 1B, FIG. 2A is a front view, and FIG.
FIG. 2B is a sectional view taken along the line II B-II B in FIG. 2A. 3A and 3B are illustrative views showing another embodiment of the present invention, FIG. 3A is a perspective view, and FIG. 3B is II in FIG. 3A.
FIG. 3 is a sectional view taken along line IB-IIIB. In the figure, 10 and 60 are air filters and humidifying media, 12 and
Is a first filter medium, 14 is a second filter medium, 16 is an adhesive, 18 is an air conditioner, 46 is a humidifying nozzle, 48 is a humidifying water sprinkling pipe, and 62 is a third
3 shows a filter medium.

Continuing from the front page (72) Inventor Tadashi Imamura 28 Hirade Industrial Park, Utsunomiya City, Tochigi Prefecture Inside the Tochigi Plant of Kubota Train Co., Ltd. Yoshiyuki 1399 Komaha, Sowa-cho, Sarushima-gun, Ibaraki Pref.

Claims (3)

(57) [Claims] The first filter medium and the first filter medium are arranged such that a low-density hydrophilic first filter medium is disposed upstream of air and a high-density water-repellent second filter medium is disposed downstream thereof. An air filter and humidifying medium, wherein the filter and the humidifying medium are folded in a zigzag shape by closely adhering to a second filtering material, and humidifying water is supplied from the upstream side. 2. The air filter and humidifying medium according to claim 1, wherein a low-density and hydrophilic third filtering medium is adhered to the downstream side of the second filtering medium. 3. The air filter and humidifying medium according to claim 1, wherein the zigzag folding surface extends in parallel with the direction in which the air flows and is bonded in a linear shape shorter than the folding width.