JPWO2023021552A5

JPWO2023021552A5 -

Info

Publication number: JPWO2023021552A5
Application number: JP2023542041A
Authority: JP
Filing date: 2021-08-16
Publication date: 2023-11-13

Description

上述した課題を解決し、目的を達成するために、本開示にかかる加湿素子は、互いの間に隙間を設けるように並べられ保水する複数の加湿体と、加湿体に水を供給する給水機構と、を備える。加湿体は、加湿体に送風される空気の流れ方向における風上側端部と風下側端部との中心よりも風上側に第１の加湿体部と、加湿体における第１の加湿体部以外の部分であって空気の流れ方向に第１の加湿体部と連続的に繋がる領域である第２の加湿体部と、を備える。第１の加湿体部は、第２の加湿体部よりも相対的に乾燥時の水に対する接触角が大きい大接触角部である。 In order to solve the above-mentioned problems and achieve the objectives, a humidifying element according to the present disclosure includes a plurality of humidifying bodies that are arranged with gaps between each other to retain water, and a water supply mechanism that supplies water to the humidifying bodies. and. The humidifying body includes a first humidifying body part located upwind from the center of the windward end and the leeward end in the flow direction of the air blown to the humidifying body, and a part other than the first humidifying body part of the humidifying body. and a second humidifier section that is a region that is continuously connected to the first humidifier section in the air flow direction . The first humidifying body part is a large contact angle part having a relatively larger contact angle with respect to water when dry than the second humidifying body part .

上記の材料の中でも被膜６０に好適な材料としては、ポリエチレングリコール（polyethylene glycol：ＰＥＧ）、ポリビニルアルコール、ポリビニルピロリドン、および水溶性多糖類が挙げられる。分子量が大きい材料は、粘性が高く、水に溶け出しにくいため、被膜６０に好適である。このため、被膜６０の材料には、できるだけ分子量が大きい材料を用いることが好ましい。なお、第１の加湿体部２３の構造体２０ｃの１本１本に被膜６０が形成されているため、第１の加湿体部２３と第２の加湿体部２４との境目は、明確に直線状にあるわけではなく、グラデーション状に形成されている。 Among the above materials, suitable materials for the coating 60 include polyethylene glycol (PEG), polyvinyl alcohol, polyvinylpyrrolidone, and water-soluble polysaccharides. A material with a large molecular weight is suitable for the coating 60 because it has high viscosity and is difficult to dissolve in water. For this reason, it is preferable to use a material with as large a molecular weight as possible for the material of the coating 60. In addition, since the coating 60 is formed on each of the structures 20c of the first humidifying body part 23 , the boundary between the first humidifying body part 23 and the second humidifying body part 24 is clearly defined. It is not formed in a straight line, but in a gradation pattern.

比較例にかかる加湿体９０は、第１の加湿体部２３を有していないこと以外は、実施の形態１にかかる加湿体２０と同じ構成を有する。比較例にかかる加湿体９０は、加湿体２０の代わりに加湿装置１に装着して使用可能である。図１１においては、加湿体２０の代わりに加湿装置１に比較例にかかる加湿体９０を装着して加湿装置１を運転させた後について示している。 The humidifier 90 according to the comparative example has the same configuration as the humidifier 20 according to the first embodiment, except that it does not include the first humidifier part 23. The humidifying body 90 according to the comparative example can be used by being attached to the humidifying device 1 instead of the humidifying body 20. FIG. 11 shows the state after the humidifier 1 is equipped with a humidifier 90 according to a comparative example instead of the humidifier 20 and the humidifier 1 is operated.

実施の形態１にかかる加湿体２０では、上述したように、被膜６０の表面の親水性が構造体２０ｃの表面の親水性に比べて低いことで、第１の加湿体部２３は第２の加湿体部２４に比べて毛細管力が弱い。これにより、加湿体２０では、第２のスケール発生現象において、加湿体２０の内部の水７０の液面が位置Ａから位置Ｂに移動する速度が速くなる。この結果、加湿体２０では、風上側端部２０ａにおいてスケール８０が局所的に成長することがなく、スケール８０の発生が分散化される。そして、加湿体２０では、スケール８０の発生が分散化することで、風上側端部２０ａにおいて大粒に成長したスケール８０が送風機５から送風される風を受けて飛散するリスクが、低減する。したがって、加湿体２０は、スケール８０の分散化によるスケール飛散リスクの低減に有効である。 In the humidifying body 20 according to the first embodiment, as described above, the hydrophilicity of the surface of the coating 60 is lower than that of the surface of the structure 20c, so that the first humidifying body part 23 has a lower hydrophilicity than the surface of the structure 20c. The capillary force is weaker than that of the humidifying body section 24. As a result, in the humidifying body 20, the speed at which the liquid level of the water 70 inside the humidifying body 20 moves from position A to position B becomes faster in the second scale generation phenomenon. As a result, in the humidifier 20, the scale 80 does not grow locally at the windward end 20a, and the scale 80 is dispersed. In the humidifying body 20, the generation of the scale 80 is dispersed, thereby reducing the risk that the scale 80 that has grown into large particles at the windward end 20a will be blown away by the wind blown from the blower 5. Therefore, the humidifier 20 is effective in reducing the risk of scale scattering by dispersing the scales 80.

実施の形態３にかかる加湿体２０は、第１の加湿体部２３の構造体２０ｃが被膜６０によってコーティングされていない。実施の形態３にかかる加湿体２０では、構造体２０ｃ自体の親水性を直接低下させることによって第１の加湿体部２３が形成されている。具体的に、実施の形態３にかかる加湿体２０は、上述した比較例にかかる加湿体９０と同様に第１の加湿体部２３が形成されていない加湿体を、酸性水溶液、アルカリ性水溶液および高温雰囲気のいずれかの環境下に晒して、構造体２０ｃを当該環境下に晒し、構造体２０ｃの親水材を部分的に劣化させることにより、第２の加湿体部２４に比べて親水性が低下した第１の加湿体部２３が形成される。すなわち、実施の形態３にかかる加湿体２０は、酸性水溶液、アルカリ性水溶液および高温雰囲気のいずれかの環境下に構造体２０ｃを晒し、構造体２０ｃの親水材を部分的に劣化させることにより、第２の加湿体部２４に比べて親水性が低下した第１の加湿体部２３が形成される。 In the humidifier 20 according to the third embodiment, the structure 20c of the first humidifier part 23 is not coated with the film 60. In the humidifier 20 according to the third embodiment, the first humidifier portion 23 is formed by directly reducing the hydrophilicity of the structure 20c itself. Specifically, the humidifying body 20 according to the third embodiment is a humidifying body in which the first humidifying body portion 23 is not formed, similar to the humidifying body 90 according to the above-mentioned comparative example. By exposing the structure 20c to any one of the environments and partially deteriorating the hydrophilic material of the structure 20c, the hydrophilicity is lowered compared to the second humidifier part 24. The first humidifier section 23 is formed. That is, the humidifier 20 according to the third embodiment exposes the structure 20c to an environment of an acidic aqueous solution, an alkaline aqueous solution, or a high-temperature atmosphere to partially deteriorate the hydrophilic material of the structure 20c. A first humidifier section 23 is formed which has lower hydrophilicity than the second humidifier section 24 .

熱交換器３０３を通過した空気は、加湿装置１の吸気口１ａに流入した後、加湿装置１によって加湿される。加湿装置１を通過して加湿された空気は、吐出口１ｂから加湿装置１の外へ吐出され、空気放出口３０７から室内ＩＤに供給される。熱交換器３０３を通過した空気を加湿する必要がない場合、切替器３０６は、熱交換器３０３を通過した空気の供給先を、通路３０８とする。熱交換器３０３を通過した空気は、通路３０８を通過した後、空気放出口３０７から室内ＩＤに供給される。このように、空気調和機３００は、室内ＩＤの空気を加湿して家屋２５０の室内ＩＤに供給することができる。また、空気調和機３００は、加湿の必要がない場合は、熱交換器３０３を通過した空気を、加湿せずに室内ＩＤに供給することができる。 The air that has passed through the heat exchanger 303 flows into the air intake port 1a of the humidifier 1, and then is humidified by the humidifier 1. The humidified air passing through the humidifying device 1 is discharged from the humidifying device 1 from the discharge port 1b, and is supplied to the room ID from the air discharge port 307. When there is no need to humidify the air that has passed through the heat exchanger 303 , the switch 306 supplies the air that has passed through the heat exchanger 303 to the passage 308 . The air that has passed through the heat exchanger 303 passes through the passage 308 and is then supplied to the indoor ID from the air outlet 307. In this way, the air conditioner 300 can humidify the air in the indoor ID and supply it to the indoor ID of the house 250. Furthermore, if humidification is not necessary, the air conditioner 300 can supply the air that has passed through the heat exchanger 303 to the indoor ID without humidifying it.

なお、上記の説明においては、換気装置２００および空気調和機３００が実施の形態１にかかる加湿装置１を備える例を説明したが、換気装置２００および空気調和機３００は、実施の形態２および実施の形態３のいずれか一方の加湿素子２を用いた加湿装置１を備えてもよい。 In addition, in the above description, an example was explained in which the ventilation device 200 and the air conditioner 300 are equipped with the humidifying device 1 according to the first embodiment, but the ventilation device 200 and the air conditioner 300 are equipped with the humidifier 1 according to the second embodiment and the embodiment. A humidifying device 1 using one of the humidifying elements 2 according to the third embodiment may be provided.

Claims

a plurality of humidifiers that are arranged with gaps between them and retain water;
a water supply mechanism that supplies water to the humidifier;
Equipped with
The humidifier includes a first humidifier part located upwind of the center of the windward end and the leeward end in the flow direction of the air blown to the humidifier, and the first humidifier in the humidifier. a second humidifying body part which is a part other than the humidifying body part and is a region continuously connected to the first humidifying body part in the flow direction of the air;
The first humidifying body portion is a large contact angle portion having a relatively larger contact angle with water when dry than the second humidifying body portion;
A humidifying element featuring:

The large contact angle portion has the largest contact angle with water in the humidifier when dry;
The humidifying element according to claim 1, characterized in that:

the large contact angle portion is provided at an end on the windward side of the humidifier in the flow direction of the air;
The humidifying element according to claim 1 or 2, characterized in that:

The large contact angle portion is provided over the entire width in the height direction at the windward end of the humidifier in the air flow direction;
The humidifying element according to claim 3, characterized in that:

The contact angle of the large contact angle portion with respect to water when dry is greater than 0° and less than 90°;
The humidifying element according to any one of claims 1 to 4 , characterized in that:

The large contact angle portion is coated with one or more of polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, and water-soluble polysaccharide;
The humidifying element according to claim 5 , characterized by:

The humidifying element according to any one of claims 1 to 6 ,
a blower that sends air to the humidifying element;
A humidifier comprising:

comprising the humidifying device according to claim 7 ;
A ventilation system featuring:

comprising the humidifying device according to claim 7 ;
An air conditioner featuring: