JP3742931B2 - Humidity controller heat exchanger - Google Patents
Humidity controller heat exchanger Download PDFInfo
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- JP3742931B2 JP3742931B2 JP2004101727A JP2004101727A JP3742931B2 JP 3742931 B2 JP3742931 B2 JP 3742931B2 JP 2004101727 A JP2004101727 A JP 2004101727A JP 2004101727 A JP2004101727 A JP 2004101727A JP 3742931 B2 JP3742931 B2 JP 3742931B2
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- adsorbent
- air
- heat exchanger
- space
- humidity control
- Prior art date
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- 239000003463 adsorbent Substances 0.000 claims abstract description 70
- 239000003507 refrigerant Substances 0.000 claims abstract description 39
- 239000011230 binding agent Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 description 14
- 238000005057 refrigeration Methods 0.000 description 9
- 238000005192 partition Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229910001583 allophane Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- -1 imogolite Inorganic materials 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
- Drying Of Gases (AREA)
Abstract
Description
この発明は、吸着剤と冷凍サイクルとを利用して空気の湿度調節を行う調湿装置の熱交換器に関するものである。 The present invention relates to a heat exchanger of a humidity control apparatus that adjusts air humidity using an adsorbent and a refrigeration cycle.
特許文献１には、乾式除湿装置の熱交換部材として、銅管の周囲に板状のフィンを一体に外嵌合し、これら銅管及びフィンの表面に空気中の水分の吸着と空気中への水分の脱離とを行う吸着剤を担持させ、銅管内を流れる冷媒によって上記吸着剤の加熱や冷却を行うようにしたものが開示されている。
上記の特許文献１のように、フィン表面に吸着剤を担持させることにより潜熱処理能力を高めることができるが、潜熱処理能力をさらに高めるために吸着剤のフィン表面の担持量を増加させると、担持層の厚みが増大してフィンと担持層との密着性が低下する。特に、フィンと担持層とは熱膨張率の差に大きなひらきがあることから、加熱・冷却の繰り返しにより急激な温度変化が起こる環境下では密着性の問題は深刻である。一方、吸着剤のフィン表面への担持量を減少させると、所定の潜熱処理能力を確保するには熱交換部材が大型化してしまう。 As described in Patent Document 1, the latent heat treatment capability can be increased by supporting the adsorbent on the fin surface, but in order to further increase the latent heat treatment capability, the amount of the adsorbent fin surface supported is increased. The thickness of the support layer increases and the adhesion between the fin and the support layer decreases. In particular, since there is a large difference in the difference in thermal expansion coefficient between the fin and the support layer, the problem of adhesion is serious in an environment where a rapid temperature change occurs due to repeated heating and cooling. On the other hand, if the amount of the adsorbent supported on the fin surface is reduced, the heat exchange member will be enlarged in order to ensure a predetermined latent heat treatment capability.
この発明はかかる点に鑑みてなされたものであり、その目的とするところは、フィンと担持層との密着性を高め、担持層の厚みを必要以上に厚くすることなく潜熱処理能力を高めることである。 The present invention has been made in view of the above points, and the object of the invention is to improve the adhesion between the fin and the support layer and to increase the latent heat treatment capability without increasing the thickness of the support layer more than necessary. It is.
上記の目的を達成するため、この発明は、吸着剤を担持するバインダの種類を特定したことを特徴とする。 In order to achieve the above object, the present invention is characterized in that the type of the binder carrying the adsorbent is specified.
具体的には、この発明は、多数のフィン（57）を有する本体の表面に吸着剤が担持され、上記本体の内部を流れる冷媒によって吸着剤を加熱又は冷却することで上記本体の外側を流れる空気中の水分を吸着剤で吸着又は脱着して空気の湿度を調節する調湿装置の熱交換器を対象とし、次のような解決手段を講じた。 Specifically, in the present invention, an adsorbent is supported on the surface of a main body having a large number of fins (57), and the adsorbent is heated or cooled by a refrigerant flowing inside the main body, and flows outside the main body. The following solution was taken for a heat exchanger of a humidity control device that adjusts the humidity of the air by adsorbing or desorbing moisture in the air with an adsorbent.
すなわち、請求項１に記載の発明は、上記吸着剤のフィン（57）表面の担持層は、吸着剤が混入された有機系の水エマルジョンバインダの乾燥固化層からなり、上記水エマルジョンバインダの固形分と吸着剤との重量配合比が、１：３以上１：８以下であることを特徴とする。 That is, a first aspect of the present invention, carrier layer of the fins (57) the surface of the adsorbent, Ri Do from drying and solidifying layer of water emulsion binder organic adsorbent is mixed, the water emulsion binder ratio by weight of the solids and the adsorbent is 1: 3 to 1: 8, characterized in der Rukoto below.
請求項２に記載の発明は、請求項１に記載の発明において、吸着剤は、ゼオライト、シリカゲル又はその混合物であり、水エマルジョンバインダは、ウレタン系樹脂、アクリル系樹脂又はエチレン酢酸ビニル共重合体であることを特徴とする。 The invention according to claim 2 is the invention according to claim 1, wherein the adsorbent is zeolite, silica gel or a mixture thereof, and the water emulsion binder is a urethane resin, an acrylic resin or an ethylene vinyl acetate copolymer. It is characterized by being.
請求項３に記載の発明は、請求項１又は２に記載の発明において、担持層の厚みが５０μｍ以上５００μｍ以下であることを特徴とする。 The invention according to claim 3 is the invention according to claim 1 or 2, characterized in that the thickness of the support layer is not less than 50 μm and not more than 500 μm.
請求項１に係る発明によれば、吸着剤のフィン（57）表面の担持層として、吸着剤が混入された有機系の水エマルジョンバインダの乾燥固化層を採用したので、無機系バインダの乾燥固化層に比べて柔軟性があり、急激な温度変化や衝撃に対して強くて剥離し難く、良好な密着性を得ることができる。したがって、単位面積当たりの吸着剤の混入量を多くしても密着性を良好に確保でき、担持層の厚みを必要以上に厚くしたり、熱交換器（47,49）を大型化することなく潜熱処理能力を高めることができる。 According to the first aspect of the present invention, since the dry solidified layer of the organic water emulsion binder mixed with the adsorbent is employed as the support layer on the surface of the fin (57) of the adsorbent, the dry solidification of the inorganic binder is performed. It is more flexible than the layer, is strong against rapid temperature changes and impacts, is difficult to peel off, and can provide good adhesion. Therefore, even if the amount of adsorbent mixed per unit area is increased, good adhesion can be secured, without increasing the thickness of the support layer more than necessary or increasing the size of the heat exchanger (47, 49). The latent heat treatment ability can be increased.
また、水エマルジョンバインダの固形分と吸着剤との重量配合比を１：３以上１：８以下にしたので、広範囲な温度変化に対しても十分に密着性を確保することができる。 Moreover, since the weight blending ratio of the solid content of the water emulsion binder and the adsorbent is set to 1: 3 or more and 1: 8 or less, sufficient adhesion can be ensured even for a wide range of temperature changes.
請求項３に係る発明によれば、担持層の厚みを５０μｍ以上５００μｍ以下にしたので、圧力損失を低減してファン効率の向上及びファン騒音の低減を達成することができる。 According to the invention of claim 3, since the thickness of the support layer is set to 50 μm or more and 500 μm or less, it is possible to reduce the pressure loss and improve the fan efficiency and the fan noise.
以下、この発明の実施の形態について図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１はこの発明の実施形態に係る熱交換器が適用された調湿装置の構成を概略的に示し、図１（ａ）は図１（ｂ）のＸ−Ｘ線における断面図、図１（ｂ）は内部を見せた状態の平面図であって図で下側が正面側である。図１（ｃ）は図１（ｂ）のＹ−Ｙ線における断面図である。この調湿装置は矩形箱状のケーシング（1）を備え、ケーシング（1）内部は、前後に延びる第１仕切板（3）で収納容積の大きい左側の第１空間（5）と、収納容積の小さい右側の第２空間（7）とに区画されている。また、上記第１空間（5）は、左右に平行に延びる前後２枚の第２及び第３仕切板（9,11）で収納容積の大きい中央の第３空間（13）と、収納容積の小さい前後２つの第４及び第５空間（15,17）とに区画され、上記第３空間（13）は、前後に延びる第４仕切板（19）で左側空間（13a）と右側空間（13b）とに区画されている。さらに、後側の第５空間（17）は、左右に水平に延びる第５仕切板（21）で上下に区画され、上側空間を第１流入路（23）とし、下側の空間を第１流出路（25）としている。一方、前側の第４空間（15）も、左右に水平に延びる第６仕切板（27）で上下に区画され、上側空間を第２流入路（29）とし、下側の空間を第２流出路（31）としている。 FIG. 1 schematically shows a configuration of a humidity control apparatus to which a heat exchanger according to an embodiment of the present invention is applied. FIG. 1A is a cross-sectional view taken along line XX in FIG. (B) is a top view of the state which showed the inside, and a lower side is a front side in a figure. FIG.1 (c) is sectional drawing in the YY line of FIG.1 (b). This humidity control device includes a rectangular box-shaped casing (1), and the inside of the casing (1) is a first partition plate (3) extending in the front-rear direction and a left first space (5) having a large storage volume, and a storage volume. Is divided into a small second space (7) on the right side. The first space (5) includes a central third space (13) having a large storage volume by two front and rear second and third partition plates (9, 11) extending parallel to the left and right, and a storage volume. The third space (13) is divided into two small front and rear fourth and fifth spaces (15, 17). The third space (13) is a fourth partition plate (19) extending in the front-rear direction, and the left space (13a) and the right space (13b). ) And is divided. Further, the rear fifth space (17) is partitioned vertically by a fifth partition plate (21) extending horizontally from side to side, the upper space is defined as the first inflow passage (23), and the lower space is defined as the first space. Outflow channel (25). On the other hand, the fourth space (15) on the front side is also divided vertically by a sixth partition plate (27) extending horizontally from side to side, the upper space is the second inlet channel (29), and the lower space is the second outlet. Road (31).
上記第３仕切板（11）には、４つの第１〜４開口（11a〜11d）が第３空間（13）の左右の空間（13a,13b）、第１流入路（23）及び第１流出路（25）と連通するように上下左右に並んで形成されている（図１（ａ）参照）。また、上記第２仕切板（9）にも、４つの第５〜８開口（9a〜9d）が第３空間（13）の左右の空間（13a,13b）、第２流入路（29）及び第２流出路（31）と連通するように上下左右に並んで形成されている（図１（ｃ）参照）。なお、これら第１〜４開口（11a〜11d）及び第５〜８開口（9a〜9d）には、図示しないが、ダンパがそれぞれ開閉自在に設けられている。 The third partition plate (11) has four first to fourth openings (11a to 11d), the left and right spaces (13a, 13b) of the third space (13), the first inflow passage (23), and the first It is formed side by side vertically and horizontally so as to communicate with the outflow path (25) (see FIG. 1 (a)). Also, the second partition plate (9) has four fifth to eighth openings (9a to 9d), the left and right spaces (13a, 13b) of the third space (13), the second inflow channel (29), and It is formed side by side vertically and horizontally so as to communicate with the second outflow path (31) (see FIG. 1C). Although not shown, dampers are provided in the first to fourth openings (11a to 11d) and the fifth to eighth openings (9a to 9d) so as to be freely opened and closed.
また、上記ケーシング（1）の左側面後側には、室外空気吸込口（33）が上記第１流入路（23）に連通するように形成され、ケーシング（1）の右側面後側には排気吹出口（35）が形成され、この排気吹出口（35）は上記第２空間（7）後側に配置された排気ファン（37）に接続されて第１流出路（25）と連通している。一方、上記ケーシング（1）の左側面前側には、室内空気吸込口（39）が上記第２流入路（29）に連通するように形成され、ケーシング（1）の右側面前側には給気吹出口（41）が形成され、この給気吹出口（41）は上記第２空間（7）前側に配置された給気ファン（43）に接続されて第２流出路（31）と連通している。 An outdoor air suction port (33) is formed on the rear side of the left side surface of the casing (1) so as to communicate with the first inflow passage (23), and on the rear side of the right side surface of the casing (1). An exhaust outlet (35) is formed, and the exhaust outlet (35) is connected to an exhaust fan (37) disposed on the rear side of the second space (7) and communicates with the first outflow passage (25). ing. On the other hand, an indoor air suction port (39) is formed on the front side of the left side surface of the casing (1) so as to communicate with the second inflow passage (29), and an air supply port is provided on the front side of the right side surface of the casing (1). An air outlet (41) is formed, and the air supply outlet (41) is connected to an air supply fan (43) disposed on the front side of the second space (7) and communicates with the second outflow passage (31). ing.
このように構成されたケーシング（1）内には、図２に示すような冷媒回路（45）が収納されている。この冷媒回路（45）は、第１熱交換器（47）、第２熱交換器（49）、圧縮機（51）、四方切換弁（53）及び電動膨張弁（55）が介設された閉回路であって冷媒が充填されていて、この冷媒を循環させることにより蒸気圧縮式の冷凍サイクルが行われる。具体的には、圧縮機（51）の吐出側が四方切換弁（53）の第１ポートに接続され、吸入側が四方切換弁（53）の第２ポートに接続されている。第１熱交換器（47）の一端は四方切換弁（53）の第３ポートに接続され、他端は電動膨張弁（55）を介して第２熱交換器（49）の一端に接続されている。第２熱交換器（49）の他端は四方切換弁（53）の第４ポートに接続されている。四方切換弁（53）は、第１ポートと第３ポートが連通して第２ポートと第４ポートが連通する状態（図２（ａ）に示す状態）と、第１ポートと第４ポートが連通して第２ポートと第３ポートが連通する状態（図２（ｂ）に示す状態）とに切り換え自在に構成されている。そして、この冷媒回路（45）は、四方切換弁（53）を切り換えることにより、第１熱交換器（47）が凝縮器として機能して第２熱交換器（49）が蒸発器として機能する第１冷凍サイクル動作と、第１熱交換器（47）が蒸発器として機能して第２熱交換器（49）が凝縮器として機能する第２冷凍サイクル動作とを切り換えて行うように構成されている。また、冷媒回路（45）の各構成要素は、図１に示すように、第１熱交換器（47）が第３空間（13）の右側空間（13b）に、第２熱交換器（49）が第３空間（13）の左側空間（13a）に、圧縮機（51）が第２空間（7）の前後中程にそれぞれ配置されている。なお、図示しないが、四方切換弁（53）や電動膨張弁（55）も第２空間（7）に配置されている。 In the casing (1) thus configured, a refrigerant circuit (45) as shown in FIG. 2 is accommodated. The refrigerant circuit (45) includes a first heat exchanger (47), a second heat exchanger (49), a compressor (51), a four-way switching valve (53), and an electric expansion valve (55). A closed circuit is filled with a refrigerant, and a vapor compression refrigeration cycle is performed by circulating the refrigerant. Specifically, the discharge side of the compressor (51) is connected to the first port of the four-way switching valve (53), and the suction side is connected to the second port of the four-way switching valve (53). One end of the first heat exchanger (47) is connected to the third port of the four-way switching valve (53), and the other end is connected to one end of the second heat exchanger (49) via the electric expansion valve (55). ing. The other end of the second heat exchanger (49) is connected to the fourth port of the four-way switching valve (53). In the four-way switching valve (53), the first port and the third port communicate with each other, the second port and the fourth port communicate with each other (the state shown in FIG. 2A), and the first port and the fourth port communicate with each other. It is configured to be able to switch to a state where the second port and the third port communicate with each other (the state shown in FIG. 2B). In the refrigerant circuit (45), the first heat exchanger (47) functions as a condenser and the second heat exchanger (49) functions as an evaporator by switching the four-way switching valve (53). The first refrigeration cycle operation and the second refrigeration cycle operation in which the first heat exchanger (47) functions as an evaporator and the second heat exchanger (49) functions as a condenser are switched and performed. ing. In addition, as shown in FIG. 1, each component of the refrigerant circuit (45) includes a first heat exchanger (47) in the right space (13b) of the third space (13) and a second heat exchanger (49 ) Is disposed in the left space (13a) of the third space (13), and the compressor (51) is disposed in the middle of the second space (7). Although not shown, a four-way switching valve (53) and an electric expansion valve (55) are also arranged in the second space (7).
上記第１及び第２熱交換器（47,49）は共に、図３に示すようなクロスフィン型のフィン・アンド・チューブ熱交換器であり、多数枚のアルミニウム合金製フィン（57）が間隔をあけて並列配置されたフィン群（59）を備えている。このフィン群（59）のフィン配列方向両端面とフィン長手方向両端側の端面とは矩形の金属製枠板（61）で取り囲まれ、第１及び第２熱交換器（47,49）は上記枠板（61）を介して第３空間（13）の左右の空間（13a,13b）にそれぞれ配置されている。上記フィン群（59）には伝熱管（63）が配置されている。この伝熱管（63）は直管部（63a）とＵ字管部（63b）とで蛇行状に形成され、上記直管部（63a）が上記フィン群（59）をフィン配列方向に貫挿するとともに、上記Ｕ字管部（63b）が上記枠板（61）から突出している。また、上記伝熱管（63）の一端には接続管（65）の一端が接続され、この接続管（65）により伝熱管（63）を図示しない冷媒配管に接続するようになっている。そして、上記フィン群（59）外表面には吸着剤（図示せず）が担持され、第１及び第２熱交換器（47,49）の本体であるフィン群（59）の内部（伝熱管（63））を流れる冷媒によって吸着剤を加熱又は冷却することで上記フィン群（59）の外側を流れる空気中の水分を吸着剤で吸着又は脱着して空気の湿度を調節するようになっている。 The first and second heat exchangers (47, 49) are both cross fin type fin-and-tube heat exchangers as shown in FIG. 3, and a plurality of aluminum alloy fins (57) are spaced apart. A fin group (59) arranged in parallel with a gap is provided. The fin array direction both end surfaces of the fin group (59) and the end surfaces on both ends of the fin longitudinal direction are surrounded by a rectangular metal frame plate (61), and the first and second heat exchangers (47, 49) are Arranged in the left and right spaces (13a, 13b) of the third space (13) via the frame plate (61). A heat transfer tube (63) is disposed in the fin group (59). The heat transfer tube (63) is formed in a meandering manner with a straight tube portion (63a) and a U-shaped tube portion (63b), and the straight tube portion (63a) penetrates the fin group (59) in the fin arrangement direction. In addition, the U-shaped tube portion (63b) protrudes from the frame plate (61). One end of the connection pipe (65) is connected to one end of the heat transfer pipe (63), and the connection pipe (65) connects the heat transfer pipe (63) to a refrigerant pipe (not shown). An adsorbent (not shown) is carried on the outer surface of the fin group (59), and the inside of the fin group (59) which is the main body of the first and second heat exchangers (47, 49) (heat transfer tube) (63)) By heating or cooling the adsorbent with the refrigerant flowing through the adsorbent, moisture in the air flowing outside the fin group (59) is adsorbed or desorbed by the adsorbent to adjust the humidity of the air. Yes.
上記吸着剤のフィン（57）表面の担持層は、吸着剤が混入された有機系の水エマルジョンバインダの乾燥固化層からなり、このことを本発明の特徴としている。この有機系の水エマルジョンバインダの乾燥固化層は、無機系バインダの乾燥固化層に比べて柔軟性があり、急激な温度変化や衝撃に対して強くて剥離し難く、フィン（57）と担持層とに大きな熱膨張率の差があっても良好な密着性を得ることができる。したがって、単位面積当たりのバインダ量を少なくして吸着剤の混入量を多くしても密着性を良好に確保でき、担持層の厚みを必要以上に厚くしたり、熱交換器（47,49）を大型化することなく潜熱処理能力を高めることができる。 The supporting layer on the surface of the fin (57) of the adsorbent is composed of a dry solidified layer of an organic water emulsion binder mixed with the adsorbent, which is a feature of the present invention. The dry solidified layer of the organic water emulsion binder is more flexible than the dry solidified layer of the inorganic binder, and is resistant to abrupt temperature changes and impacts and is difficult to peel off. The fin (57) and the carrier layer Even when there is a large difference in thermal expansion coefficient, good adhesion can be obtained. Therefore, even if the amount of binder per unit area is reduced and the adsorbent content is increased, good adhesion can be secured, and the thickness of the support layer can be increased more than necessary, or the heat exchanger (47, 49) The capacity of the latent heat treatment can be increased without increasing the size.
上記吸着剤のフィン（57）表面の担持層の厚みは、圧力損失を低減してファン効率の向上及びファン騒音の低減を達成する観点から、５０μｍ以上５００μｍ以下であることが好ましい。なお、フィン（57）以外にも吸着剤の担持層を形成してもよい。この場合、圧力損失増加にあまり影響しない箇所（例えば、枠板（61）、伝熱管（63）及び接続管（65））には、担持層をフィン（57）よりも厚く形成して吸脱着性能を向上させてもよい。 The thickness of the carrier layer on the surface of the fin (57) of the adsorbent is preferably 50 μm or more and 500 μm or less from the viewpoint of reducing pressure loss to achieve improvement in fan efficiency and reduction in fan noise. In addition to the fins (57), an adsorbent support layer may be formed. In this case, at the locations that do not significantly affect the increase in pressure loss (for example, the frame plate (61), heat transfer tube (63), and connection tube (65)), the support layer is formed thicker than the fin (57) to absorb Performance may be improved.
吸着剤としては、例えば、ゼオライト、シリカゲル、活性炭、親水性又は吸水性の官能基を有する有機高分子ポリマ系材料、カルボキシル基又はスルホン酸基を有するイオン交換樹脂系材料、感温性高分子等の機能性高分子材料、セピオライト、イモゴライト、アロフェン及びカオリナイト等の粘土鉱物系材料等、水分の吸着に優れているものであれば特にこだわらないが、分散性や粘度等を考慮するとゼオライト、シリカゲル又はその混合物が好ましい。 Examples of the adsorbent include zeolite, silica gel, activated carbon, an organic polymer polymer material having a hydrophilic or water-absorbing functional group, an ion exchange resin material having a carboxyl group or a sulfonic acid group, and a temperature-sensitive polymer. Functional polymer materials, such as clay mineral materials such as sepiolite, imogolite, allophane and kaolinite, etc., are not particularly particular as long as they are excellent in moisture adsorption, but considering dispersibility and viscosity, zeolite, silica gel Or a mixture thereof is preferred.
上記水エマルジョンバインダは、ウレタン系樹脂、アクリル系樹脂又はエチレン酢酸ビニル共重合体であり、上記水エマルジョンバインダの固形分と吸着剤との重量配合比は１：３以上１：１０以下、好ましくは１：５以上１：８以下である。この重量配合比により、広範囲な温度変化に対しても十分に密着性を確保することができる。なお、担持方法としては、例えば、上記吸着剤を混合したスラリーに浸漬する方法があるが、吸着剤の性能を確保できる方法であれば特にこだわらない。 The water emulsion binder is a urethane resin, an acrylic resin, or an ethylene vinyl acetate copolymer, and the weight blending ratio of the solid content of the water emulsion binder and the adsorbent is 1: 3 or more and 1:10 or less, preferably 1: 5 or more and 1: 8 or less. With this weight blending ratio, sufficient adhesion can be secured even over a wide range of temperature changes. In addition, as a carrying | support method, there exists the method of immersing in the slurry which mixed the said adsorbent, for example, However, if it is a method which can ensure the performance of an adsorbent, it will not specifically stick.
下記の表１に、水エマルジョンバインダの固形分と吸着剤との重量配合比を変えた際の担持層密着性（初期）と吸着性能を示す。ここでは、吸着剤としてゼオライトを、水エマルジョンバインダとしてウレタン系のものをそれぞれ用いた。表１中、◎印は密着性や吸着性能が良好なことを、○印は◎印よりは密着性や吸着性能が若干下がるが、使用に問題のないことを、×印は担持層が剥離したり吸着性能が十分に発揮されず使用に耐えないことを、−印は剥離により吸着性能を測定できないことをそれぞれ表す。 Table 1 below shows the support layer adhesion (initial) and adsorption performance when the weight blending ratio of the solid content of the water emulsion binder and the adsorbent is changed. Here, zeolite was used as the adsorbent, and urethane-based one as the water emulsion binder. In Table 1, ◎ indicates that the adhesion and adsorption performance are good, ○ indicates that the adhesion and adsorption performance are slightly lower than ◎, but there is no problem in use, and X indicates that the carrier layer is peeled off The sign indicates that the adsorption performance cannot be fully exhibited and cannot be used, and the symbol-indicates that the adsorption performance cannot be measured by peeling.
このように構成された調湿装置の調湿動作について図４〜７を参照しながら説明する。 The humidity control operation of the humidity control apparatus configured as described above will be described with reference to FIGS.
−調湿装置の調湿動作−
この調湿装置では、除湿運転と加湿運転とが切り換え可能となっている。また、除湿運転中や加湿運転中には、第１動作と第２動作とが交互に繰り返される。
-Humidity control operation of humidity control device-
In this humidity control apparatus, the dehumidifying operation and the humidifying operation can be switched. Further, during the dehumidifying operation and the humidifying operation, the first operation and the second operation are alternately repeated.
《除湿運転》
除湿運転時において、調湿装置では、給気ファン（43）及び排気ファン（37）が運転される。そして、調湿装置は、室外空気（OA）を第１空気として取り込んで室内に供給する一方、室内空気（RA）を第２空気として取り込んで室外に排出する。
《Dehumidification operation》
In the dehumidifying operation, the air supply fan (43) and the exhaust fan (37) are operated in the humidity control apparatus. The humidity control apparatus takes in outdoor air (OA) as first air and supplies it to the room, while taking in indoor air (RA) as second air and discharges it to the outside.
まず、除湿運転時の第１動作について、図２及び図４を参照しながら説明する。この第１動作では、第１熱交換器（47）において吸着剤の再生が行われ、第２熱交換器（49）において第１空気である室外空気（OA）の除湿が行われる。 First, the first operation during the dehumidifying operation will be described with reference to FIGS. In the first operation, the adsorbent is regenerated in the first heat exchanger (47), and the outdoor air (OA), which is the first air, is dehumidified in the second heat exchanger (49).
第１動作時において、冷媒回路（45）では、四方切換弁（53）が図２（ａ）に示す状態に切り換えられる。この状態で圧縮機（51）を運転すると、冷媒回路（45）で冷媒が循環し、第１熱交換器（47）が凝縮器となって第２熱交換器（49）が蒸発器となる第１冷凍サイクル動作が行われる。具体的には、圧縮機（51）から吐出された冷媒は、第１熱交換器（47）で放熱して凝縮し、その後に電動膨張弁（55）へ送られて減圧される。減圧された冷媒は、第２熱交換器（49）で吸熱して蒸発し、その後に圧縮機（51）へ吸入されて圧縮される。そして、圧縮された冷媒は、再び圧縮機（51）から吐出される。 During the first operation, in the refrigerant circuit (45), the four-way switching valve (53) is switched to the state shown in FIG. When the compressor (51) is operated in this state, the refrigerant circulates in the refrigerant circuit (45), the first heat exchanger (47) becomes a condenser, and the second heat exchanger (49) becomes an evaporator. A first refrigeration cycle operation is performed. Specifically, the refrigerant discharged from the compressor (51) dissipates heat and condenses in the first heat exchanger (47), and then is sent to the electric expansion valve (55) to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the second heat exchanger (49), and is then sucked into the compressor (51) and compressed. Then, the compressed refrigerant is discharged again from the compressor (51).
また、第１動作時には、第２開口（11ｂ）、第３開口（11ｃ）、第５開口（9a）及び第８開口（9d）が開口状態となり、第１開口（11a）、第４開口（11d）、第６開口（9b）及び第７開口（9c）が閉鎖状態になる。そして、図４に示すように、第１熱交換器（47）へ第２空気としての室内空気（RA）が供給され、第２熱交換器（49）へ第１空気としての室外空気（OA）が供給される。 In the first operation, the second opening (11b), the third opening (11c), the fifth opening (9a), and the eighth opening (9d) are in the open state, and the first opening (11a) and the fourth opening ( 11d), the sixth opening (9b) and the seventh opening (9c) are closed. Then, as shown in FIG. 4, indoor air (RA) as second air is supplied to the first heat exchanger (47), and outdoor air (OA) as the first air is supplied to the second heat exchanger (49). ) Is supplied.
具体的には、室内空気吸込口（39）より流入した第２空気は、第２流入路（29）から第５開口（9a）を通って第３空間（13）の右側空間（13b）へ送り込まれる。右側空間（13b）では、第２空気が第１熱交換器（47）を上から下へ向かって通過して行く。第１熱交換器（47）では、フィン（57）表面に担持された吸着剤が冷媒により加熱され、この吸着剤から水分が脱離する。吸着剤から脱離した水分は、第１熱交換器（47）を通過する第２空気に付与される。第１熱交換器（47）で水分を付与された第２空気は、第３空間（13）の右側空間（13b）から第３開口（11c）を通って第１流出路（25）へ流出する。その後、第２空気は、排気ファン（37）へ吸い込まれ、排気吹出口（35）から排出空気（EA）として室外へ排出される。 Specifically, the second air flowing in from the indoor air inlet (39) passes through the fifth inlet (9a) from the second inlet (29) to the right space (13b) of the third space (13). It is sent. In the right space (13b), the second air passes through the first heat exchanger (47) from top to bottom. In the first heat exchanger (47), the adsorbent supported on the fin (57) surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the first heat exchanger (47). The second air given moisture in the first heat exchanger (47) flows out from the right space (13b) of the third space (13) through the third opening (11c) to the first outflow passage (25). To do. Thereafter, the second air is sucked into the exhaust fan (37), and discharged from the exhaust outlet (35) to the outside as exhaust air (EA).
一方、室外空気吸込口（33）より流入した第１空気は、第１流入路（23）から第２開口（11b）を通って第３空間（13）の左側空間（13a）へ送り込まれる。左側空間（13a）では、第１空気が第２熱交換器（49）を上から下へ向かって通過して行く。第２熱交換器（49）では、フィン（57）表面に担持された吸着剤に第１空気中の水分が吸着される。その際に生じる吸着熱は、冷媒が吸熱する。第２熱交換器（49）で除湿された第１空気は、第３空間（13）の左側空間（13a）から第８開口（9d）を通って第２流出路（31）へ流出する。その後、第１空気は、給気ファン（43）へ吸い込まれ、給気吹出口（41）から供給空気（SA）として室内へ供給される。 On the other hand, the 1st air which flowed in from the outdoor air suction inlet (33) is sent into the left side space (13a) of the 3rd space (13) through the 2nd opening (11b) from the 1st inflow path (23). In the left space (13a), the first air passes through the second heat exchanger (49) from top to bottom. In the second heat exchanger (49), the moisture in the first air is adsorbed by the adsorbent carried on the surface of the fin (57). The heat of adsorption generated at that time is absorbed by the refrigerant. The first air dehumidified by the second heat exchanger (49) flows out from the left space (13a) of the third space (13) through the eighth opening (9d) to the second outlet channel (31). Thereafter, the first air is sucked into the air supply fan (43), and is supplied into the room as supply air (SA) from the air supply outlet (41).
次に、除湿運転時の第２動作について、図２及び図５を参照しながら説明する。この第２動作では、第２熱交換器（49）において吸着剤の再生が行われ、第１熱交換器（47）において第１空気である室外空気（OA）の除湿が行われる。 Next, the second operation during the dehumidifying operation will be described with reference to FIGS. In the second operation, the adsorbent is regenerated in the second heat exchanger (49), and the outdoor air (OA) that is the first air is dehumidified in the first heat exchanger (47).
第２動作時において、冷媒回路（45）では、四方切換弁（53）が図２（ｂ）に示す状態に切り換えられる。この状態で圧縮機（51）を運転すると、冷媒回路（45）で冷媒が循環し、第１熱交換器（47）が蒸発器となって第２熱交換器（49）が凝縮器となる第２冷凍サイクル動作が行われる。具体的には、圧縮機（51）から吐出された冷媒は、第２熱交換器（49）で放熱して凝縮し、その後に電動膨張弁（55）へ送られて減圧される。減圧された冷媒は、第１熱交換器（47）で吸熱して蒸発し、その後に圧縮機（51）へ吸入されて圧縮される。そして、圧縮された冷媒は、再び圧縮機（51）から吐出される。 During the second operation, in the refrigerant circuit (45), the four-way switching valve (53) is switched to the state shown in FIG. When the compressor (51) is operated in this state, the refrigerant circulates in the refrigerant circuit (45), the first heat exchanger (47) becomes an evaporator, and the second heat exchanger (49) becomes a condenser. A second refrigeration cycle operation is performed. Specifically, the refrigerant discharged from the compressor (51) dissipates heat and condenses in the second heat exchanger (49), and then is sent to the electric expansion valve (55) to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the first heat exchanger (47), and then is sucked into the compressor (51) and compressed. Then, the compressed refrigerant is discharged again from the compressor (51).
また、第２動作時には、第１開口（11a）、第４開口（11d）、第６開口（9b）及び第７開口（9c）が開口状態となり、第２開口（11b）、第３開口（11c）、第５開口（9a）及び第８開口（9d）が閉鎖状態となる。そして、図５に示すように、第１熱交換器（47）へ第１空気としての室外空気（OA）が供給され、第２熱交換器（49）へ第２空気としての室内空気（RA）が供給される。 In the second operation, the first opening (11a), the fourth opening (11d), the sixth opening (9b), and the seventh opening (9c) are in the open state, and the second opening (11b) and the third opening ( 11c), the fifth opening (9a) and the eighth opening (9d) are closed. Then, as shown in FIG. 5, outdoor air (OA) as first air is supplied to the first heat exchanger (47), and indoor air (RA) as second air is supplied to the second heat exchanger (49). ) Is supplied.
具体的には、室内空気吸込口（39）より流入した第２空気は、第２流入路（29）から第６開口（9b）を通って第３空間（13）の左側空間（13a）へ送り込まれる。左側空間（13a）では、第２空気が第２熱交換器（49）を上から下へ向かって通過して行く。第２熱交換器（49）では、フィン（57）表面に担持された吸着剤が冷媒により加熱され、この吸着剤から水分が脱離する。吸着剤から脱離した水分は、第２熱交換器（49）を通過する第２空気に付与される。第２熱交換器（49）で水分を付与された第２空気は、第３空間（13）の左側空間（13a）から第４開口（11d）を通って第１流出路（25）へ流出する。その後、第２空気は、排気ファン（37）へ吸い込まれ、排気吹出口（35）から排出空気（EA）として室外へ排出される。 Specifically, the second air flowing in from the indoor air inlet (39) passes through the sixth opening (9b) from the second inlet (29) to the left space (13a) of the third space (13). It is sent. In the left space (13a), the second air passes through the second heat exchanger (49) from top to bottom. In the second heat exchanger (49), the adsorbent supported on the surface of the fin (57) is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the second heat exchanger (49). The second air given moisture in the second heat exchanger (49) flows out from the left space (13a) of the third space (13) through the fourth opening (11d) to the first outflow passage (25). To do. Thereafter, the second air is sucked into the exhaust fan (37), and discharged from the exhaust outlet (35) to the outside as exhaust air (EA).
一方、室外空気吸込口（33）より流入した第１空気は、第１流入路（23）から第１開口（11a）を通って第３空間（13）の右側空間（13b）へ送り込まれる。右側空間（13b）では、第１空気が第１熱交換器（47）を上から下へ向かって通過して行く。第１熱交換器（47）では、フィン（57）表面に担持された吸着剤に第１空気中の水分が吸着される。その際に生じる吸着熱は、冷媒が吸熱する。第１熱交換器（47）で除湿された第１空気は、第３空間（13）の右側空間（13b）から第７開口（9c）を通って第２流出路（31）へ流出する。その後、第１空気は、給気ファン（43）へ吸い込まれ、給気吹出口（41）から供給空気（SA）として室内へ供給される。 On the other hand, the 1st air which flowed in from the outdoor air suction inlet (33) is sent into the right side space (13b) of the 3rd space (13) through the 1st opening (11a) from the 1st inflow passage (23). In the right space (13b), the first air passes through the first heat exchanger (47) from top to bottom. In the first heat exchanger (47), the moisture in the first air is adsorbed by the adsorbent carried on the surface of the fin (57). The heat of adsorption generated at that time is absorbed by the refrigerant. The first air dehumidified by the first heat exchanger (47) flows out from the right space (13b) of the third space (13) through the seventh opening (9c) to the second outflow passage (31). Thereafter, the first air is sucked into the air supply fan (43), and is supplied into the room as supply air (SA) from the air supply outlet (41).
《加湿運転》
加湿運転時において、調湿装置では、給気ファン（43）及び排気ファン（37）が運転される。そして、調湿装置は、室内空気（RA）を第１空気として取り込んで室外に排出する一方、室外空気（OA）を第２空気として取り込んで室内に供給する。
《Humidification operation》
During the humidifying operation, the air supply fan (43) and the exhaust fan (37) are operated in the humidity control apparatus. The humidity control apparatus takes in indoor air (RA) as first air and discharges it outside the room, while taking in outdoor air (OA) as second air and supplies it to the room.
まず、加湿運転時の第１動作について、図２及び図６を参照しながら説明する。この第１動作では、第１熱交換器（47）において第２空気である室外空気（OA）の加湿が行われ、第２熱交換器（49）において第１空気である室内空気（RA）から水分の回収が行われる。 First, the first operation during the humidifying operation will be described with reference to FIGS. 2 and 6. In this first operation, the outdoor air (OA) that is the second air is humidified in the first heat exchanger (47), and the indoor air (RA) that is the first air in the second heat exchanger (49). Water is collected from the water.
第１動作時において、冷媒回路（45）では、四方切換弁（53）が図２（ａ）に示す状態に切り換えられる。この状態で圧縮機（51）を運転すると、冷媒回路（45）で冷媒が循環し、第１熱交換器（47）が凝縮器となって第２熱交換器（49）が蒸発器となる第１冷凍サイクル動作が行われる。 During the first operation, in the refrigerant circuit (45), the four-way switching valve (53) is switched to the state shown in FIG. When the compressor (51) is operated in this state, the refrigerant circulates in the refrigerant circuit (45), the first heat exchanger (47) becomes a condenser, and the second heat exchanger (49) becomes an evaporator. A first refrigeration cycle operation is performed.
また、第１動作時には、第１開口（11a）、第４開口（11d）、第６開口（9b）及び第７開口（9c）が開口状態になり、第２開口（11b）、第３開口（11c）、第５開口（9a）及び第８開口（9d）が閉鎖状態になる。そして、図６に示すように、第１熱交換器（47）には第２空気としての室外空気（OA）が供給され、第２熱交換器（49）には第１空気としての室内空気（RA）が供給される。 In the first operation, the first opening (11a), the fourth opening (11d), the sixth opening (9b), and the seventh opening (9c) are in the open state, and the second opening (11b) and the third opening (11c), the fifth opening (9a) and the eighth opening (9d) are closed. Then, as shown in FIG. 6, outdoor air (OA) as second air is supplied to the first heat exchanger (47), and indoor air as first air is supplied to the second heat exchanger (49). (RA) is supplied.
具体的には、室内空気吸込口（39）より流入した第１空気は、第２流入路（29）から第６開口（9b）を通って第３空間（13）の左側空間（13a）へ送り込まれる。第２熱交換室（42）では、第１空気が第２熱交換器（49）を上から下へ向かって通過して行く。左側空間（13a）では、フィン（57）表面に担持された吸着剤に第１空気中の水分が吸着される。その際に生じる吸着熱は、冷媒が吸熱する。その後、水分を奪われた第１空気は、第４開口（11d）、第１流出路（25）、排気ファン（37）を順に通過し、排出空気（EA）として排気吹出口（35）から室外へ排出される。 Specifically, the 1st air which flowed in from the indoor air suction inlet (39) passes through the 6th opening (9b) from the 2nd inflow path (29) to the left space (13a) of the 3rd space (13). It is sent. In the second heat exchange chamber (42), the first air passes through the second heat exchanger (49) from top to bottom. In the left space (13a), the moisture in the first air is adsorbed by the adsorbent carried on the surface of the fin (57). The heat of adsorption generated at that time is absorbed by the refrigerant. Thereafter, the first air deprived of moisture passes through the fourth opening (11d), the first outflow passage (25), and the exhaust fan (37) in this order, and from the exhaust outlet (35) as exhaust air (EA). It is discharged outside the room.
一方、室外空気吸込口（33）より流入した第２空気は、第１流入路（23）から第１開口（11a）を通って第３空間（13）の右側空間（13b）へ送り込まれる。右側空間（13b）では、第２空気が第１熱交換器（47）を上から下へ向かって通過して行く。第１熱交換器（47）では、フィン（57）表面に担持された吸着剤が冷媒により加熱され、この吸着剤から水分が脱離する。吸着剤から脱離した水分は、第１熱交換器（47）を通過する第２空気に付与される。その後、加湿された第２空気は、第７開口（9c）、第２流出路（31）、給気ファン（43）を順に通過し、供給空気（SA）として給気吹出口（41）から室内へ供給される。 On the other hand, the 2nd air which flowed in from the outdoor air suction inlet (33) is sent into the right space (13b) of the 3rd space (13) through the 1st opening (11a) from the 1st inflow passage (23). In the right space (13b), the second air passes through the first heat exchanger (47) from top to bottom. In the first heat exchanger (47), the adsorbent supported on the fin (57) surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the first heat exchanger (47). Thereafter, the humidified second air sequentially passes through the seventh opening (9c), the second outflow passage (31), and the air supply fan (43), and serves as supply air (SA) from the air supply outlet (41). Supplied indoors.
次に、加湿運転時の第２動作について、図２及び図７を参照しながら説明する。この第２動作では、第２熱交換器（49）において第２空気である室外空気（OA）の加湿が行われ、第１熱交換器（47）において第１空気である室内空気（RA）から水分の回収が行われる。 Next, the second operation during the humidifying operation will be described with reference to FIGS. In the second operation, the outdoor air (OA) that is the second air is humidified in the second heat exchanger (49), and the indoor air (RA) that is the first air in the first heat exchanger (47). Water is collected from the water.
第２動作時において、冷媒回路（45）では、四方切換弁（53）が図２（ｂ）に示す状態に切り換えられる。この状態で圧縮機（51）を運転すると、冷媒回路（45）で冷媒が循環し、第１熱交換器（47）が蒸発器となって第２熱交換器（49）が凝縮器となる第２冷凍サイクル動作が行われる。 During the second operation, in the refrigerant circuit (45), the four-way switching valve (53) is switched to the state shown in FIG. When the compressor (51) is operated in this state, the refrigerant circulates in the refrigerant circuit (45), the first heat exchanger (47) becomes an evaporator, and the second heat exchanger (49) becomes a condenser. A second refrigeration cycle operation is performed.
また、第２動作時には、第２開口（11b）、第３開口（11c）、第５開口（9a）及び第８開口（9d）が開口状態になり、第１開口（11a）、第４開口（11d）、第６開口（9b）及び第７開口（9c）が閉鎖状態になる。そして、図７に示すように、第１熱交換器（47）には第１空気としての室内空気（RA）が供給され、第２熱交換器（49）には第２空気としての室外空気（OA）が供給される。 In the second operation, the second opening (11b), the third opening (11c), the fifth opening (9a), and the eighth opening (9d) are in the open state, and the first opening (11a) and the fourth opening (11d), the sixth opening (9b) and the seventh opening (9c) are closed. Then, as shown in FIG. 7, indoor air (RA) as first air is supplied to the first heat exchanger (47), and outdoor air as second air is supplied to the second heat exchanger (49). (OA) is supplied.
具体的には、室内空気吸込口（39）より流入した第１空気は、第２流入路（29）から第５開口（9a）を通って第３空間（13）の右側空間（13b）に送り込まれる。右側空間（13b）では、第１空気が第１熱交換器（47）を上から下に向かって通過して行く。第１熱交換器（47）では、フィン（57）表面に担持された吸着剤に第１空気中の水分が吸着される。その際に生じる吸着熱は、冷媒が吸熱する。その後、水分を奪われた第１空気は、第３開口（11c）、第１流出路（25）、排気ファン（37）を順に通過し、排出空気（EA）として排気吹出口（35）から室外へ排出される。 Specifically, the 1st air which flowed in from the indoor air suction inlet (39) passes through the 5th opening (9a) from the 2nd inflow path (29) to the right space (13b) of the 3rd space (13). It is sent. In the right space (13b), the first air passes through the first heat exchanger (47) from top to bottom. In the first heat exchanger (47), the moisture in the first air is adsorbed by the adsorbent carried on the surface of the fin (57). The heat of adsorption generated at that time is absorbed by the refrigerant. Thereafter, the first air deprived of moisture passes through the third opening (11c), the first outflow passage (25), and the exhaust fan (37) in this order, and from the exhaust outlet (35) as exhaust air (EA). It is discharged outside the room.
一方、室外空気吸込口（33）より流入した第２空気は、第１流入路（23）から第２開口（11b）を通って第３空間（13）の左側空間（13a）に送り込まれる。左側空間（13a）では、第２空気が第２熱交換器（49）を上から下へ向かって通過して行く。第２熱交換器（49）では、フィン（57）表面に担持された吸着剤が冷媒により加熱され、この吸着剤から水分が脱離する。吸着剤から脱離した水分は、第２熱交換器（49）を通過する第２空気に付与される。その後、加湿された第２空気は、第８開口（9d）、第２流出路（31）、給気ファン（43）を順に通過し、供給空気（SA）として給気吹出口（41）から室内へ供給される。 On the other hand, the 2nd air which flowed in from the outdoor air suction inlet (33) is sent into the left side space (13a) of the 3rd space (13) through the 2nd opening (11b) from the 1st inflow path (23). In the left space (13a), the second air passes through the second heat exchanger (49) from top to bottom. In the second heat exchanger (49), the adsorbent supported on the surface of the fin (57) is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the second heat exchanger (49). Thereafter, the humidified second air sequentially passes through the eighth opening (9d), the second outlet channel (31), and the air supply fan (43), and is supplied as supply air (SA) from the air supply outlet (41). Supplied indoors.
以上、全換気モードの除湿運転及び加湿運転について説明したが、この調湿装置は、室内空気（RA）を第１空気として取り込み室内に供給する一方、室外空気（OA）を第２空気として取り込み室外に排出する循環モードの除湿運転や、室外空気（OA）を第１空気として取り込み室外に排出する一方、室内空気（RA）を第２空気として取り込み室内に供給する循環モードの加湿運転をも行うものである。また、室外空気（OA）を第１空気及び第２空気として取り込み、一部を室内に供給すると同時に、残りを室外に排出する給気モードの除湿運転及び加湿運転や、室内空気（RA）を第１空気及び第２空気として取り込み、一部を室内に供給すると同時に、残りを室外に排出する排気モードの除湿運転及び加湿運転をも行うものである。 As described above, the dehumidifying operation and the humidifying operation in the full ventilation mode have been described. This humidity control apparatus takes in indoor air (RA) as the first air and supplies it into the room, while taking in outdoor air (OA) as the second air. A dehumidifying operation in a circulation mode for discharging outside, and a humidifying operation in a circulation mode for taking outdoor air (OA) as first air and discharging it outside the room while taking in indoor air (RA) as second air and supplying it to the room. Is what you do. In addition, the outdoor air (OA) is taken in as the first air and the second air, and a part of the air is supplied to the room at the same time. A dehumidifying operation and a humidifying operation in an exhaust mode in which the air is taken in as the first air and the second air and a part thereof is supplied to the room and the remaining part is discharged to the outside are also performed.
この発明は、吸着剤と冷凍サイクルとを利用して空気の湿度調節を行う調湿装置の熱交換器に有用である。 The present invention is useful for a heat exchanger of a humidity control apparatus that adjusts the humidity of air using an adsorbent and a refrigeration cycle.
47 第１熱交換器
49 第２熱交換器
57 フィン
59 フィン群（本体）
47 1st heat exchanger
49 Second heat exchanger
57 fins
59 Fin group (main body)
Claims (3)
上記吸着剤のフィン（57）表面の担持層は、吸着剤が混入された有機系の水エマルジョンバインダの乾燥固化層からなり、
上記水エマルジョンバインダの固形分と吸着剤との重量配合比が、１：３以上１：８以下であることを特徴とする調湿装置の熱交換器。 Adsorbent is supported on the surface of the main body having a large number of fins (57), and the adsorbent adsorbs moisture in the air flowing outside the main body by heating or cooling the adsorbent with the refrigerant flowing inside the main body. Or a heat exchanger of a humidity control device that desorbs and adjusts the humidity of air,
Carrying layer of the fins (57) the surface of the adsorbent, Ri Do from drying and solidifying layer of water emulsion binder organic adsorbent is mixed,
Ratio by weight of the solids and the adsorbent of the water emulsion binder, 1: 3 to 1: 8 or less der heat exchanger Rukoto humidity control apparatus according to claim.
吸着剤は、ゼオライト、シリカゲル又はその混合物であり、
水エマルジョンバインダは、ウレタン系樹脂、アクリル系樹脂又はエチレン酢酸ビニル共重合体であることを特徴とする調湿装置の熱交換器。 In the heat exchanger of the humidity control apparatus of Claim 1,
The adsorbent is zeolite, silica gel or a mixture thereof,
Water emulsion binder, a urethane resin, the heat exchanger for humidity control apparatus, characterized in that an acrylic resin or an ethylene-vinyl acetate copolymer.
担持層の厚みが５０μｍ以上５００μｍ以下であることを特徴とする調湿装置の熱交換器。 In the heat exchanger of the humidity control apparatus according to claim 1 or 2,
A heat exchanger for a humidity control apparatus, wherein the thickness of the support layer is 50 μm or more and 500 μm or less.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004101727A JP3742931B2 (en) | 2004-03-31 | 2004-03-31 | Humidity controller heat exchanger |
| EP05727663A EP1736725A4 (en) | 2004-03-31 | 2005-03-29 | Heat exchanger |
| AU2005227438A AU2005227438B2 (en) | 2004-03-31 | 2005-03-29 | Heat exchanger |
| KR1020067022601A KR100837501B1 (en) | 2004-03-31 | 2005-03-29 | Heat exchanger |
| US10/594,598 US7717163B2 (en) | 2004-03-31 | 2005-03-29 | Heat exchanger |
| PCT/JP2005/005963 WO2005095882A1 (en) | 2004-03-31 | 2005-03-29 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004101727A JP3742931B2 (en) | 2004-03-31 | 2004-03-31 | Humidity controller heat exchanger |
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| JP2005283052A JP2005283052A (en) | 2005-10-13 |
| JP3742931B2 true JP3742931B2 (en) | 2006-02-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5130709B2 (en) * | 2005-12-20 | 2013-01-30 | 三菱化学株式会社 | Adsorption sheet, adsorption element, method for producing the same, and uses thereof |
| JP6385781B2 (en) * | 2014-10-06 | 2018-09-05 | シャープ株式会社 | Dehumidifier |
| AU2015337843B2 (en) * | 2014-10-27 | 2017-08-17 | Intex Holdings Pty Ltd | Dehumidification system and method |
| WO2022071515A1 (en) * | 2020-09-30 | 2022-04-07 | ダイキン工業株式会社 | Adsorption heat exchanger |
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