JP6320071B2

JP6320071B2 - Air conditioning system and heat exchange device

Info

Publication number: JP6320071B2
Application number: JP2014028682A
Authority: JP
Inventors: 岸本　章; 章岸本; 健郎井上; 玉青福島; 喜徳久角; 正彦芝原; 豊小田; 司堀; 後藤　稔; 稔後藤; 健之浅井
Original assignee: Nitto Denko Corp; Osaka Gas Co Ltd; Osaka University NUC
Current assignee: Nitto Denko Corp; Osaka Gas Co Ltd; Osaka University NUC
Priority date: 2014-02-18
Filing date: 2014-02-18
Publication date: 2018-05-09
Anticipated expiration: 2034-02-18
Also published as: JP2015152278A

Description

本発明は、冷媒を圧縮する圧縮機と、当該圧縮機にて圧縮された冷媒と空気とを熱交換させる形態で冷媒を凝縮させる凝縮器と、凝縮器を通過した後の冷媒を膨張させる膨張弁と、当該膨張弁で膨張した冷媒と空気とを熱交換させる形態で冷媒を蒸発させる蒸発器とに、記載の順に冷媒を循環する冷媒循環回路と、前記凝縮器として働く室外熱交換器の空気流入側に水を噴霧する水噴霧手段とを備えた空調システム、及び熱交換装置に関する。 The present invention relates to a compressor that compresses a refrigerant, a condenser that condenses the refrigerant in a form in which heat is exchanged between the refrigerant compressed by the compressor and air, and an expansion that expands the refrigerant after passing through the condenser. A refrigerant circulation circuit that circulates the refrigerant in the order described, and an outdoor heat exchanger that functions as the condenser, and an evaporator that evaporates the refrigerant in a form in which heat is exchanged between the valve and the refrigerant expanded by the expansion valve and air The present invention relates to an air conditioning system including a water spraying means for spraying water on an air inflow side, and a heat exchange device.

従来、空調システムとして、冷媒を圧縮する圧縮機と、当該圧縮機にて圧縮された冷媒と空気（外気）とを熱交換させる形態で冷媒を凝縮させる凝縮器と、凝縮器を通過した後の冷媒を膨張させる膨張弁と、当該膨張弁で膨張した冷媒と空気（内気）とを熱交換させる形態で冷媒を蒸発させる蒸発器とに、記載の順に冷媒を循環させる冷媒循環回路を備えたものに関し、特に外気温度が上昇する夏期において、外気温度の上昇に伴い相対湿度が低下する物理現象を応用し、凝縮器として働く室外熱交換器に水を噴霧する水噴霧装置を備えたものが知られている（特許文献１を参照）。 Conventionally, as an air conditioning system, a compressor that compresses a refrigerant, a condenser that condenses the refrigerant in a form in which heat is exchanged between the refrigerant compressed by the compressor and air (outside air), and after passing through the condenser A refrigerant circulation circuit that circulates refrigerant in the order described in an expansion valve that expands the refrigerant and an evaporator that evaporates the refrigerant in a form in which heat is exchanged between the refrigerant expanded by the expansion valve and air (inside air) In particular, in the summer when the outdoor temperature rises, it is known that a water spray device that sprays water is applied to an outdoor heat exchanger that acts as a condenser by applying a physical phenomenon in which the relative humidity decreases as the outdoor temperature rises. (See Patent Document 1).

特許第３０７３９６６号公報Japanese Patent No. 3073966

上記特許文献１に開示の技術にあっては、凝縮器として働く室外熱交換器として、熱交換面が上下方向に延びる熱交換用フィンを備えるフィンチューブ型の熱交換器を備えており、当該構成にあっては、熱交換用フィンとしてのアルミフィンが上下方向に延びると共に撥水性を有するため、水噴霧装置から噴霧された噴霧水がフィンの熱交換面を滴状落下してしまい、噴霧水のかなりの量が、気化蒸発に寄与していなかった。結果、当該噴霧水の凝縮器（室外熱交換器）での気化蒸発に伴う放熱促進効果を十分に得ることができないことに加え、水噴霧量を無駄に増加させることとなり、効率性及び経済性の観点で改善の余地があった。 In the technique disclosed in Patent Document 1, the outdoor heat exchanger serving as a condenser includes a fin tube type heat exchanger including heat exchange fins whose heat exchange surfaces extend in the vertical direction. In the configuration, since the aluminum fin as the heat exchange fin extends in the vertical direction and has water repellency, the sprayed water sprayed from the water spraying device drops and drops on the heat exchange surface of the fin. A significant amount of water did not contribute to vaporization evaporation. As a result, in addition to not being able to sufficiently obtain the heat radiation promoting effect accompanying vaporization and evaporation in the condenser (outdoor heat exchanger) of the spray water, the amount of water spray is increased unnecessarily, and efficiency and economy There was room for improvement.

本発明は、上述の課題に鑑みてなされたものであり、その目的は、水噴霧量を低減することができながらも、噴霧水を凝縮器（室外熱交換器）で適切に気化蒸発させて十分な放熱促進効果を得ることができる空調システム、及び熱交換装置を提供することにある。 The present invention has been made in view of the above-described problems, and its purpose is to appropriately vaporize and evaporate the spray water with a condenser (outdoor heat exchanger) while reducing the amount of water spray. An object of the present invention is to provide an air conditioning system and a heat exchanging device that can obtain a sufficient heat dissipation promotion effect.

上記目的を達成するための本願に係る空調システムは、
冷媒を圧縮する圧縮機と、当該圧縮機にて圧縮された冷媒と空気とを熱交換させる形態で冷媒を凝縮させる凝縮器と、凝縮器を通過した後の冷媒を膨張させる膨張弁と、当該膨張弁で膨張した冷媒と空気とを熱交換させる形態で冷媒を蒸発させる蒸発器とに、記載の順に冷媒を循環する冷媒循環回路と、前記凝縮器として働く室外熱交換器の空気流入側に水を噴霧する水噴霧手段とを備えた空調システムであって、その特徴構成は、
フィンチューブ型の室外熱交換器の熱交換用フィンの上下方向に沿う熱交換面に、親水性を有する親水性多孔質シートを前記熱交換面から熱が伝導する状態で備え、前記水噴霧手段が、前記親水性多孔質シートに拡散状態で水を噴霧する点にある。 The air conditioning system according to the present application for achieving the above object is as follows:
A compressor that compresses the refrigerant, a condenser that condenses the refrigerant in a form in which heat is exchanged between the refrigerant compressed by the compressor and air, an expansion valve that expands the refrigerant after passing through the condenser, In an evaporator that evaporates the refrigerant in a form of heat exchange between the refrigerant expanded by the expansion valve and air, a refrigerant circulation circuit that circulates the refrigerant in the order described, and an air inflow side of the outdoor heat exchanger that functions as the condenser An air conditioning system including water spraying means for spraying water, the characteristic configuration of which is
The water spraying means comprises a hydrophilic porous sheet having hydrophilicity on the heat exchange surface along the vertical direction of the heat exchange fin of the fin tube type outdoor heat exchanger in a state where heat is conducted from the heat exchange surface. However, the water is sprayed in a diffused state on the hydrophilic porous sheet.

上記特徴構成によれば、フィンチューブ型の室外熱交換器の熱交換用フィンの上下方向に沿う熱交換面に親水性を有する親水性多孔質シートを熱交換面から熱を伝導する状態で備えると共に、当該親水性多孔質シートに拡散状態で水を噴霧するから、当該親水性多孔質シートの親水性能により、噴霧水を、室外熱交換器の熱交換用フィンの熱交換面に留まらせることができる。更に、当該親水性多孔質シートは、熱交換用フィンの熱交換面から熱が伝導する状態で設けられているから、当該熱交換用フィンから親水性多孔質シートに伝導された熱は、当該親水性多孔質シートに含まれる水の気化蒸発に伴う蒸発熱として放熱されることで、十分な放熱促進効果を発揮する。
ここで、上下方向は、厳密な意味での鉛直方向に限られるわけではなく、親水性多孔質シートが噴霧水を受けて、当該噴霧水が下方へ移動する程度の上下方向配置がされていれば、本願の目的を達成できる。
特に、このように放熱促進効果が発揮できることにより、凝縮器としての室外熱交換器２２へ送る冷媒の凝縮圧力を低減できるから、冷媒を圧縮する圧縮機の消費電力を低減することができ、システム全体としての消費電力の低減、及びＣＯＰの向上を図ることができる。
以上より、水噴霧手段から噴霧された噴霧水を適切に熱交換用フィンの熱交換面に留める形態で、噴霧量を大幅に低減することができながらも、熱交換用フィンの熱交換面からの熱を親水性多孔質シートに含まれる水の蒸発熱として適切に放熱させて、高い放熱促進効果を得ることができる空調システムを実現できる。 According to the above characteristic configuration, the hydrophilic porous sheet having hydrophilicity is provided in a state of conducting heat from the heat exchange surface on the heat exchange surface along the vertical direction of the heat exchange fin of the fin tube type outdoor heat exchanger. At the same time, since water is sprayed in a diffused state on the hydrophilic porous sheet, the hydrophilic performance of the hydrophilic porous sheet allows the spray water to remain on the heat exchange surface of the heat exchange fin of the outdoor heat exchanger. Can do. Furthermore, since the hydrophilic porous sheet is provided in a state where heat is conducted from the heat exchange surface of the heat exchange fin, the heat conducted from the heat exchange fin to the hydrophilic porous sheet is By dissipating heat as evaporation heat accompanying the vaporization and evaporation of water contained in the hydrophilic porous sheet, a sufficient heat dissipation promoting effect is exhibited.
Here, the vertical direction is not limited to the vertical direction in a strict sense, and the hydrophilic porous sheet receives the spray water, and the vertical direction is such that the spray water moves downward. Thus, the object of the present application can be achieved.
In particular, since the effect of promoting heat dissipation can be exhibited in this way, the condensation pressure of the refrigerant sent to the outdoor heat exchanger 22 as a condenser can be reduced, so that the power consumption of the compressor that compresses the refrigerant can be reduced. It is possible to reduce power consumption as a whole and improve COP.
As described above, the spray water sprayed from the water spraying means is appropriately retained on the heat exchange surface of the heat exchange fin, and while the spray amount can be greatly reduced, the heat exchange surface of the heat exchange fin It is possible to realize an air conditioning system that can appropriately dissipate this heat as the heat of evaporation of water contained in the hydrophilic porous sheet and obtain a high heat radiation promoting effect.

本願に係る空調システムの更なる特徴構成は、
前記親水性多孔質シートは、前記室外熱交換器への空気の流れ方向で、前記熱交換用フィンの前記熱交換面のうち上流側部位に設けられている点にある。 Further features of the air conditioning system according to the present application are as follows:
The said hydrophilic porous sheet exists in the point provided in the upstream site | part among the said heat exchange surfaces of the said heat exchange fin by the flow direction of the air to the said outdoor heat exchanger.

上記特徴構成によれば、親水性多孔質シートは、室外熱交換器への空気の流れ方向で、熱交換用フィンの熱交換面の全面に設けられているわけではなく、上流側部位に設ける構成を採用するから、例えば、外気温度が低い冬場等で、室外用熱交換器を蒸発器と使用する場合、室外熱交換器への空気の流れ方向で、下流側部位で親水性多孔質シートが設けられていない部位にて、空気の熱を回収する形態で、暖房運転をも良好に実行できる。 According to the above characteristic configuration, the hydrophilic porous sheet is not provided on the entire heat exchange surface of the heat exchange fin in the air flow direction to the outdoor heat exchanger, but is provided on the upstream side portion. Since the configuration is adopted, for example, when the outdoor heat exchanger is used as an evaporator in winter when the outside air temperature is low, the hydrophilic porous sheet at the downstream side in the air flow direction to the outdoor heat exchanger. Heating operation can be performed well in a form in which the heat of the air is recovered at a portion where no is provided.

本願に係る空調システムの更なる特徴構成は、
上下方向に沿う状態で複数並設された一対の前記熱交換用フィン間に対向する状態で設けられる一対の前記親水性多孔質シートの間には、両者の間に間隙を形成する状態で両者支持する支持部材が設けられている点にある。 Further features of the air conditioning system according to the present application are as follows:
Between a pair of the hydrophilic porous sheets provided in a state of being opposed to each other between a pair of the heat exchange fins arranged in parallel in a state along the vertical direction, in a state where a gap is formed between the two The support member to support is provided.

通常、上下方向に沿う状態で複数並設された一対の前記熱交換用フィン間は、当該熱交換用フィンからの熱を回収する空気の通流路となるため、放熱量を得る意味からは、当該空気（外気）の流量を一定以上確保すべく、その通流路での圧力損失が少ないことが好ましい。
上記特徴構成によれば、一対の熱交換用フィン間で、夫々の熱交換面に接する状態で設けられる一対の熱交換用フィンの間は、一対の熱交換用フィンの間に間隙を形成する状態で両者を支持する支持部材が設けられているから、一対の親水性多孔質シートの間の間隙を適切に確保して、その間を通流する空気流量を一定以上確保でき、それにより放熱量も一定以上に確保できる。
また、当該支持部材は、親水性多孔質シートを熱交換用フィンの熱交換面の側へ付勢する付勢力を持たせるように構成でき、この場合には、親水性多孔質シートが熱交換用フィンから剥離することを効果的に防止し、親水性多孔質シートと熱交換用フィンとの間での伝熱を長期に亘って維持できる。 Usually, between a pair of the heat exchange fins arranged in parallel in the state along the vertical direction is an air flow path for recovering heat from the heat exchange fins, so that the amount of heat radiation is obtained. In order to ensure a certain flow rate of the air (outside air), it is preferable that the pressure loss in the passage is small.
According to the above characteristic configuration, a gap is formed between the pair of heat exchange fins between the pair of heat exchange fins between the pair of heat exchange fins provided in contact with the respective heat exchange surfaces. Since a support member is provided to support both in a state, the gap between the pair of hydrophilic porous sheets can be appropriately secured, and the air flow rate flowing between them can be secured above a certain level, whereby the heat dissipation amount Can be secured above a certain level.
Further, the support member can be configured to have a biasing force that biases the hydrophilic porous sheet toward the heat exchange surface of the heat exchange fin, and in this case, the hydrophilic porous sheet is heat exchanged. It is possible to effectively prevent peeling from the use fins and maintain heat transfer between the hydrophilic porous sheet and the heat exchange fins over a long period of time.

本願に係る空調システムの更なる特徴構成は、
前記支持部材は、前記親水性多孔質シートと同一の親水性を有する材料から構成されている点にある。 Further features of the air conditioning system according to the present application are as follows:
The support member is composed of a material having the same hydrophilicity as the hydrophilic porous sheet.

上記特徴構成によれば、一対の親水性多孔質シートの間に間隙を形成する状態で、一対の親水性多孔質シートを支持する支持部材を、親水性を有する親水性多孔質シートと同一の材料にて構成するから、当該支持部材の表面からも、噴霧水が気化蒸発させることができ、放熱促進効果をより一層良好に発揮できる。 According to the above characteristic configuration, the support member that supports the pair of hydrophilic porous sheets in the state in which a gap is formed between the pair of hydrophilic porous sheets is the same as the hydrophilic porous sheet having hydrophilicity. Since it consists of material, spray water can be evaporated and evaporated also from the surface of the said supporting member, and the heat dissipation promotion effect can be exhibited much more favorably.

本願に係る空調システムの更なる特徴構成は、
前記水噴霧手段は、前記室外熱交換器へ向けて水を噴霧する噴霧ノズルを有し、
前記噴霧ノズルは、空気から噴霧水の蒸発潜熱を奪う冷却領域を形成する状態で、前記室外熱交換器への空気の流れ方向において、前記熱交換用フィンから上流側へ離間した部位に設けられている点にある。 Further features of the air conditioning system according to the present application are as follows:
The water spray means has a spray nozzle that sprays water toward the outdoor heat exchanger,
The spray nozzle is provided at a position spaced upstream from the heat exchange fin in the air flow direction to the outdoor heat exchanger in a state of forming a cooling region that takes away the latent heat of evaporation of spray water from the air. There is in point.

上記特徴構成によれば、噴霧ノズルが、空気から噴霧水の蒸発潜熱を奪う冷却領域を形成する状態で、室外熱交換器の空気の流れ方向において、熱交換用フィンから上流側へ離間した部位に設けられているから、噴霧ノズルから噴霧された噴霧水は、まず最初に、冷却領域において、室外熱交換器へ導かれる空気から蒸発潜熱を奪う形態で、空気を冷却し、これにより比較的低温となった空気が室外熱交換器へ導かれ、熱交換用フィンの熱を良好に回収できる。
更に、冷却領域を通過した後の噴霧水は、親水性多孔質シートに良好に含水されるから、当該含水された噴霧水が親水性多孔質シートから気化蒸発する形態で、熱交換用フィンから蒸発熱を奪い、放熱促進効果をより一層良好に発揮できる。 According to the above characteristic configuration, the spray nozzle is located in a state where the spray nozzle forms a cooling region that takes away the latent heat of vaporization of the spray water, and is located away from the heat exchange fin in the air flow direction of the outdoor heat exchanger. Therefore, the spray water sprayed from the spray nozzle first cools the air in the cooling region in such a way that the latent heat of vaporization is taken away from the air led to the outdoor heat exchanger, thereby relatively reducing the air. The low-temperature air is guided to the outdoor heat exchanger, and the heat of the heat exchange fins can be recovered well.
Further, since the spray water after passing through the cooling region is well contained in the hydrophilic porous sheet, the water-containing spray water is vaporized and evaporated from the hydrophilic porous sheet, from the heat exchange fin. The heat of vaporization can be taken away and the effect of promoting heat dissipation can be exhibited even better.

本願に係る空調システムの更なる特徴構成は、
前記室外熱交換器に導かれる空気の湿度を検出する湿度検出手段、及び温度を検出する温度検出手段を備え、
前記湿度検出手段にて検出される検出湿度と、前記温度検出手段にて検出される検出温度と、前記室外熱交換器に空気を導く室外ファンの回転数とに基づいて、前記水噴霧手段からの水噴霧量を、前記親水性多孔質シートからのドレン水の発生を防止可能な噴霧量に設定する噴霧量設定手段を備えている点にある。 Further features of the air conditioning system according to the present application are as follows:
Humidity detection means for detecting the humidity of air that is introduced into the outdoor heat exchanger, and provided with a temperature detecting means for detecting a temperature,
Based on the detected humidity detected by the humidity detecting means, the detected temperature detected by the temperature detecting means, and the rotational speed of an outdoor fan that guides air to the outdoor heat exchanger, from the water spray means The spray amount setting means for setting the spray amount of water to a spray amount that can prevent the generation of drain water from the hydrophilic porous sheet is provided.

上記特徴構成によれば、噴霧ノズルからの水噴霧量は、親水性多孔質シートからのドレン水の発生を防止して、余分な水の噴霧を削減しながらも、親水性多孔質シートからの噴霧水の気化に伴う蒸発熱が十分に大きくなり、熱交換用フィンでの放熱促進効果を十分に発揮できる噴霧量に設定できるから、経済性を向上しつつ放熱促進効果も適切に発揮し得る空調システムを実現できる。 According to the above characteristic configuration, the amount of water spray from the spray nozzle prevents the generation of drain water from the hydrophilic porous sheet, while reducing the amount of excess water spray, while reducing the amount of water spray from the hydrophilic porous sheet. Evaporation heat accompanying vaporization of spray water becomes sufficiently large and can be set to a spray amount that can sufficiently exert the heat radiation promotion effect with the heat exchange fin, so that the heat radiation promotion effect can be appropriately exhibited while improving economy. An air conditioning system can be realized.

上記目的を達成するための熱交換装置は、
冷媒を内部に通流するチューブと熱交換用フィンと、前記チューブ及び前記熱交換用フィンに水を噴霧する水噴霧手段とを備え、前記チューブの内部の冷媒と前記チューブの外部の空気とを熱交換させる熱交換装置であって、その特徴構成は、
前記熱交換用フィンの上下方向に沿う熱交換面に、親水性を有する親水性多孔質シートを前記熱交換面から熱を伝導する状態で備え、
冷媒を冷却する場合に、前記水噴霧手段が前記親水性多孔質シートに拡散状態で水を噴霧する点にある。 A heat exchange device for achieving the above object is as follows:
A tube through which the refrigerant flows, a heat exchange fin, and water spraying means for spraying water on the tube and the heat exchange fin; and the refrigerant inside the tube and the air outside the tube. A heat exchanging device for exchanging heat, the characteristic configuration of which is
The heat exchange surface along the vertical direction of the heat exchange fin is equipped with a hydrophilic porous sheet having hydrophilicity in a state of conducting heat from the heat exchange surface,
In cooling the coolant, the water spraying means sprays water in a diffused state on the hydrophilic porous sheet.

上記特徴構成によれば、フィンチューブ型の室外熱交換器の熱交換用フィンの上下方向に沿う熱交換面に親水性を有する親水性多孔質シートを熱交換面から熱を伝導する状態で備えると共に、当該親水性多孔質シートに拡散状態で水を噴霧するから、当該親水性多孔質シートの親水性能により、噴霧水を、室外熱交換器の熱交換用フィンの熱交換面に留まらせることができる。更に、当該親水性多孔質シートは、熱交換用フィンの熱交換面から熱が伝導する状態で設けられているから、当該熱交換用フィンから親水性多孔質シートに伝導された熱は、当該親水性多孔質シートに含まれる水の気化蒸発に伴う蒸発熱として放熱されることで、十分な放熱促進効果を発揮する。
以上より、水噴霧手段から噴霧された噴霧水を適切に熱交換用フィンの熱交換面に留める形態で、噴霧量を大幅に低減することができながらも、熱交換用フィンの熱交換面からの熱を親水性多孔質シートに含まれる水の蒸発熱として適切に放熱させて、高い放熱促進効果を得ることができる熱交換装置を実現できる。 According to the above characteristic configuration, the hydrophilic porous sheet having hydrophilicity is provided in a state of conducting heat from the heat exchange surface on the heat exchange surface along the vertical direction of the heat exchange fin of the fin tube type outdoor heat exchanger. At the same time, since water is sprayed in a diffused state on the hydrophilic porous sheet, the hydrophilic performance of the hydrophilic porous sheet allows the spray water to remain on the heat exchange surface of the heat exchange fin of the outdoor heat exchanger. Can do. Furthermore, since the hydrophilic porous sheet is provided in a state where heat is conducted from the heat exchange surface of the heat exchange fin, the heat conducted from the heat exchange fin to the hydrophilic porous sheet is By dissipating heat as evaporation heat accompanying the vaporization and evaporation of water contained in the hydrophilic porous sheet, a sufficient heat dissipation promoting effect is exhibited.
As described above, the spray water sprayed from the water spraying means is appropriately retained on the heat exchange surface of the heat exchange fin, and while the spray amount can be greatly reduced, the heat exchange surface of the heat exchange fin This heat can be appropriately dissipated as the heat of evaporation of water contained in the hydrophilic porous sheet, thereby realizing a heat exchange device capable of obtaining a high heat dissipation promoting effect.

本願の空調システムに係る概略構成図Schematic configuration diagram related to the air conditioning system of the present application 親水性多孔質シートを備えた室外機及び室外熱交換器の概略構成図Schematic configuration diagram of outdoor unit and outdoor heat exchanger provided with hydrophilic porous sheet 室外熱交換器を通過する空気の状態変化を示す空気線図Air diagram showing changes in the state of air passing through the outdoor heat exchanger 冷房能力の増加に伴う凝縮器としての室外熱交換器における冷媒及び空気の温度変化を示すグラフ図The graph which shows the temperature change of the refrigerant | coolant and air in the outdoor heat exchanger as a condenser accompanying the increase in cooling capacity

本願の空調システム１００は、図１に示すように、冷媒を冷媒循環回路Ｃに循環させて室内の空調を実行するもので、凝縮器Ｇとして働く室外熱交換器２２へ水を噴霧する水噴霧装置４０を有するものにおいて、冷媒循環回路Ｃにおける凝縮器Ｇとして働く室外熱交換器２２への水噴霧量を低減できながらも、噴霧水を凝縮器（室外熱交換器２２）で適切に気化蒸発させて、十分な放熱促進効果を得ることができるものに関する。 As shown in FIG. 1, the air conditioning system 100 of the present application circulates a refrigerant through a refrigerant circulation circuit C to execute indoor air conditioning, and sprays water onto an outdoor heat exchanger 22 that functions as a condenser G. In the apparatus having the apparatus 40, the amount of water sprayed onto the outdoor heat exchanger 22 serving as the condenser G in the refrigerant circulation circuit C can be reduced, but the spray water is appropriately vaporized and evaporated by the condenser (outdoor heat exchanger 22). It is possible to obtain a sufficient heat dissipation promoting effect.

当該空調システム１００は、図１に示すように、ガスエンジン２４の軸出力にて冷媒を圧縮する圧縮機２１と、当該圧縮機２１にて圧縮された冷媒と空気とを熱交換させる形態で冷媒を凝縮させる凝縮器Ｇ（図１で、室外熱交換器２２）と、凝縮器Ｇを通過した後の冷媒を膨張させる膨張弁２３と、当該膨張弁２３で膨張した冷媒と空気とを熱交換させる形態で冷媒を蒸発させる蒸発器Ｊ（図１で、室内熱交換器１１）とに、記載の順に冷媒を循環させる冷媒循環回路Ｃとを備えると共に、室内熱交換器１１、及び当該室内熱交換器１１へ室内空気を送る室内ファン１１ａを内部に配設する室内機１０と、ガスエンジン２４、圧縮機２１、室外熱交換器２２、当該室外熱交換器２２へ室外空気ＯＡを送る室外ファン２２ａ、及び膨張弁２３を内部に配設する室外機２０と、圧縮機２１の回転数等を制御する制御装置３０とが設けられている。
これにより、当該空調システム１００は、圧縮機２１で圧縮された冷媒が、凝縮器Ｇとしての室外熱交換器２２で室外空気ＯＡと熱交換する形態で凝縮し、膨張弁２３で膨張された冷媒が、蒸発器Ｊとしての室内熱交換器１１で室内空気と熱交換する形態で蒸発し、熱交換した後の室内空気を比較的低温で低湿の空調空気ＳＡとして室内へ導く、所謂、冷房運転を実行する。 As shown in FIG. 1, the air-conditioning system 100 includes a compressor 21 that compresses the refrigerant with the shaft output of the gas engine 24, and a refrigerant that exchanges heat between the refrigerant compressed by the compressor 21 and air. Heat exchange between the condenser G (the outdoor heat exchanger 22 in FIG. 1), the expansion valve 23 for expanding the refrigerant after passing through the condenser G, and the refrigerant and air expanded by the expansion valve 23 And an evaporator J (indoor heat exchanger 11 in FIG. 1) that evaporates the refrigerant in a form to be provided with a refrigerant circulation circuit C that circulates the refrigerant in the order described, and the indoor heat exchanger 11 and the indoor heat. An indoor unit 10 in which an indoor fan 11a that sends indoor air to the exchanger 11 is disposed, a gas engine 24, a compressor 21, an outdoor heat exchanger 22, and an outdoor fan that sends outdoor air OA to the outdoor heat exchanger 22 22a and the expansion valve 23 An outdoor unit 20 be disposed section, and a control unit 30 for controlling the number of revolutions of the compressor 21 is provided.
Thereby, the said air-conditioning system 100 condenses the refrigerant | coolant compressed with the compressor 21 in the form which heat-exchanges with outdoor air OA with the outdoor heat exchanger 22 as the condenser G, and the refrigerant | coolant expanded by the expansion valve 23 However, it evaporates in a form in which heat is exchanged with room air in the room heat exchanger 11 as the evaporator J, and the room air after the heat exchange is led into the room as conditioned air SA having a relatively low temperature and low humidity. Execute.

更に、本願の空調システム１００は、室外機２０内部において、冷媒循環回路Ｃの冷媒循環方向を切り替え可能な四方弁２５を備えており、当該四方弁２５が図１に示す状態から９０度回転することで、室外熱交換器２２が蒸発器Ｊとして機能し、室内熱交換器１１が凝縮器Ｇとして機能することとなる。
これにより、空調システム１００は、膨張弁２３で膨張された冷媒が、蒸発器Ｊとしての室外熱交換器２２で室外空気ＯＡと熱交換する形態で蒸発し、圧縮機２１で圧縮された冷媒が、凝縮器Ｇとしての室内熱交換器１１で室内空気と熱交換する形態で凝縮し、熱交換した後の室内空気を比較的高温の空調空気ＳＡとして室内へ導く、所謂、暖房運転を実行する。 Furthermore, the air conditioning system 100 of the present application includes a four-way valve 25 capable of switching the refrigerant circulation direction of the refrigerant circulation circuit C inside the outdoor unit 20, and the four-way valve 25 rotates 90 degrees from the state shown in FIG. Thus, the outdoor heat exchanger 22 functions as the evaporator J, and the indoor heat exchanger 11 functions as the condenser G.
Thereby, the air-conditioning system 100 evaporates the refrigerant expanded by the expansion valve 23 in the form of heat exchange with the outdoor air OA by the outdoor heat exchanger 22 as the evaporator J, and the refrigerant compressed by the compressor 21 Then, a so-called heating operation is performed in which the indoor heat exchanger 11 as the condenser G condenses in a form of heat exchange with the room air, and the room air after the heat exchange is led to the room as a relatively high temperature conditioned air SA. .

本願の空調システム１００は、冷房運転時に凝縮器Ｇとして働く室外熱交換器２２に係る構成に特徴がある。以下、その構成につき、説明を追加する。
通常、室外機２０は、図２（ａ）の平面図に示すように、室外熱交換器２２及び室外ファン２２ａが配設される第１空間Ｖ１と、圧縮機２１や膨張弁２３等が配設される第２空間Ｖ２とに区画されており、第１空間Ｖ１の背面側（図２（ａ）で矢印Ｘの基端側）の面、及び第１空間Ｖ１の側面側（図２（ａ）で矢印Ｙの基端側）の面に沿う状態で、室外熱交換器２２が略Ｌ字状に湾曲して設けられている。
当該室外熱交換器２２は、熱交換面が室外空気ＯＡの流れ方向に沿うと共に上下（鉛直）方向に延びる複数の熱交換用フィン２２ｃと、当該複数の熱交換用フィン２２ｃの熱交換面に直交する方向に管軸方向を沿わせる状態で内部に冷媒を通流するチューブ２２ｂとから成るフィンチューブ型の熱交換器であり、チューブ２２ｂは、複数の熱交換用フィン２２ｃの両端で折り返して、複数回に亘って、当該複数の熱交換用フィン２２ｃを貫通する状態で設けられている。 The air conditioning system 100 of the present application is characterized by the configuration related to the outdoor heat exchanger 22 that functions as the condenser G during the cooling operation. Hereinafter, description will be added to the configuration.
Usually, as shown in the plan view of FIG. 2A, the outdoor unit 20 includes a first space V1 in which the outdoor heat exchanger 22 and the outdoor fan 22a are disposed, a compressor 21, an expansion valve 23, and the like. The first space V1 is partitioned into a second space V2, a surface on the back side of the first space V1 (the base end side of the arrow X in FIG. 2A), and a side surface side of the first space V1 (FIG. 2 ( The outdoor heat exchanger 22 is curved and provided in a substantially L shape in a state along the surface of the base end side of the arrow Y in a).
The outdoor heat exchanger 22 has a plurality of heat exchange fins 22c extending in the vertical (vertical) direction along the flow direction of the outdoor air OA, and the heat exchange surfaces of the heat exchange fins 22c. It is a finned tube type heat exchanger composed of a tube 22b through which a refrigerant flows in a state in which the tube axis direction runs along an orthogonal direction, and the tube 22b is folded at both ends of a plurality of heat exchange fins 22c. The heat exchange fins 22c are provided in a state of penetrating a plurality of times.

更に、室外機２０の第１空間Ｖ１の背面側（図２（ａ）で矢印Ｘの基端側）の面、及び第１空間Ｖ１の側面側（図２（ａ）で矢印Ｙの基端側）の面と、室外熱交換器２２との間には、凝縮器Ｇとして働く室外熱交換器２２における冷媒の放熱を促進させるため、上水圧にて圧送される上水を通流する上水供給配管４２と、上水供給配管４２を間欠的に開閉自在な電磁弁４３と、当該電磁弁４３の間欠的な開閉により間欠的に供給される上水を、室外熱交換器２２の熱交換用フィン２２ｃに室外空気ＯＡの流れ方向で上流側から下流側へ向けて噴霧する噴霧ノズル４１とから成る水噴霧装置４０が設けられている。
尚、噴霧ノズル４１は、図１に示すように、室外空気ＯＡの流れ方向において、室外熱交換器２２から所定の距離だけ上流側に設けられており、噴霧ノズル４１と室外熱交換器２２との間の領域は、その領域を通過する室外空気ＯＡから噴霧水の蒸発潜熱を奪う冷却領域Ｓ１として機能する。これにより、室外熱交換器２２には、比較的低温の室外空気ＯＡが導かれることとなり、凝縮器Ｇとして働く室外熱交換器２２での放熱促進効果を向上する。 Furthermore, the surface of the outdoor unit 20 on the back side of the first space V1 (the base end side of the arrow X in FIG. 2A) and the side surface side of the first space V1 (the base end of the arrow Y in FIG. 2A) In order to promote the heat release of the refrigerant in the outdoor heat exchanger 22 working as the condenser G, the upper water that is pumped by the upper water pressure is passed between the surface of the side) and the outdoor heat exchanger 22. The water supply pipe 42, the electromagnetic valve 43 that can open and close the water supply pipe 42 intermittently, and the water that is intermittently supplied by intermittent opening and closing of the electromagnetic valve 43 are used as the heat of the outdoor heat exchanger 22. A water spray device 40 including a spray nozzle 41 that sprays from the upstream side to the downstream side in the flow direction of the outdoor air OA is provided on the replacement fin 22c.
As shown in FIG. 1, the spray nozzle 41 is provided upstream from the outdoor heat exchanger 22 by a predetermined distance in the flow direction of the outdoor air OA, and the spray nozzle 41 and the outdoor heat exchanger 22 The region between the two functions as a cooling region S1 that takes away the latent heat of vaporization of the spray water from the outdoor air OA passing through the region. As a result, the outdoor heat exchanger 22 is guided to the outdoor air OA having a relatively low temperature, and the heat radiation promotion effect in the outdoor heat exchanger 22 working as the condenser G is improved.

熱交換用フィン２２ｃの上下方向に沿う熱交換面には、図２（ａ）（ｂ）に示すように、その上下方向の全域に亘って、上記噴霧ノズル４１から噴霧された噴霧水を内部に含水可能な親水性多孔質シート４０ａが、熱交換面から熱が伝導する状態で備えられている。
当該親水性多孔質シート４０ａの配設形態に関し、説明を追加すると、当該親水性多孔質シート４０ａは、図２（ａ）（ｂ）に示すように、熱交換用フィン２２ｃの熱交換面のうち、室外空気ＯＡの流れ方向で上流側部位（熱交換面の略半分を占める上流側領域）に設けられている。
これにより、冷房運転時においては、室外空気ＯＡの流れ方向で、上流側から噴霧される噴霧水を、熱交換用フィン２２ｃの熱交換面のうち上流側部位にて良好に保水し、当該水が熱交換面から蒸発熱を奪う形態で蒸発することで、放熱促進効果を良好に発揮する。
一方、暖房運転時においては、室外空気ＯＡの流れ方向で下流側部位（熱交換面の略半分を占める下流側領域）にて、室外空気ＯＡと熱交換用フィン２２ｃが直接接触して熱交換して、室外空気ＯＡから熱を回収できるため、暖房運転をも良好に実行できる。 As shown in FIGS. 2 (a) and 2 (b), the spray water sprayed from the spray nozzle 41 is formed on the heat exchanging surface along the vertical direction of the heat exchanging fins 22c. The water-containing hydrophilic porous sheet 40a is provided in a state where heat is conducted from the heat exchange surface.
Regarding the arrangement of the hydrophilic porous sheet 40a, a description will be added. As shown in FIGS. 2A and 2B, the hydrophilic porous sheet 40a has a heat exchange surface of the heat exchange fin 22c. Among these, it is provided in the upstream part (upstream region occupying approximately half of the heat exchange surface) in the flow direction of the outdoor air OA.
Thereby, during cooling operation, the spray water sprayed from the upstream side in the flow direction of the outdoor air OA is well retained in the upstream portion of the heat exchange surface of the heat exchange fin 22c, and the water Evaporates in a form that removes the heat of evaporation from the heat exchange surface, thereby effectively exhibiting the heat radiation promoting effect.
On the other hand, during the heating operation, the outdoor air OA and the heat exchange fins 22c are in direct contact with each other in the downstream portion (downstream region occupying approximately half of the heat exchange surface) in the flow direction of the outdoor air OA. And since heat can be collect | recovered from outdoor air OA, heating operation can also be performed favorably.

親水性多孔質シート４０ａは、親水性を付与した超高分子量ポリエチレンから成り、高い保水性を発揮するべく、当該ポリエチレンの粘度平均分子量が、好ましくは５０万〜１５００万であり、より好ましくは、１００万〜１２００万とされる。これにより生成された親水性多孔質シート４０ａは、気孔率が１５〜５５％程度となる。
尚、上記親水性を付与する方法、即ち、親水性官能基を導入する方法としては、上記シートを、放射線グラフト重合法、ＵＶグラフト重合法、化学開始剤グラフト重合法等のグラフト重合法；プラズマ処理、大気圧プラズマ処理、コロナ処理、ＵＶ処理、ＵＶオゾン処理等の表面処理法；重クロム酸カリウム溶液または過マンガン酸カリウム溶液等による酸化処理；ナトリウム処理液等による化学的なエッチング処理；親水性ポリマーまたは界面活性剤のコーティング等により処理する方法が挙げられる。 The hydrophilic porous sheet 40a is made of ultrahigh molecular weight polyethylene imparted with hydrophilicity, and the viscosity average molecular weight of the polyethylene is preferably 500,000 to 15 million in order to exhibit high water retention, and more preferably, One million to 12 million. The porous porous sheet 40a thus produced has a porosity of about 15 to 55%.
In addition, as a method for imparting the hydrophilicity, that is, a method for introducing a hydrophilic functional group, the sheet is subjected to a graft polymerization method such as a radiation graft polymerization method, a UV graft polymerization method, or a chemical initiator graft polymerization method; Surface treatment methods such as treatment, atmospheric pressure plasma treatment, corona treatment, UV treatment, UV ozone treatment; oxidation treatment with potassium dichromate solution or potassium permanganate solution; chemical etching treatment with sodium treatment solution, etc .; hydrophilic And a method of treating with a coating of a functional polymer or a surfactant.

親水性多孔質シート４０ａは、図２（ａ）（ｂ）に示すように、熱交換用フィン２２ｃの熱交換面に対し、接着剤、ホットメルト剤等により接着されるのであるが、長期間の使用により、剥離してくる虞もある。そこで、図２（ｂ）に示すように、一対の熱交換用フィン２２ｃの間に設けられる一対の親水性多孔質シート４０ａの間には、両者の間に間隙を形成する状態で、両者を熱交換面に直交する方向で離間する向きに支持する複数の支持部材４０ｂが設けられている。当該支持部材４０ｂは、親水性多孔質シート４０ａと同一の親水性を有する材料から構成することが好ましい。
支持部材４０ｂの高さ（熱交換面に直交する方向での高さ：図２でｌ）は、１．０ｍｍ以上３．０ｍｍ以下が好ましい。１．０ｍｍより低いと室外空気ＯＡの抵抗が高くなるため好ましくなく、３．０ｍｍより高いと熱交換の効率が低くなるため好ましくない。支持部材４０ｂの形状は円柱形状、直方体形状等、特に制限はない。円柱形状を採用する場合、強度維持およびシート表面の蒸発を効率的にするために、支持部材４０ｂの直径は、３．０ｍｍ以上６．０ｍｍ以下とすることが望ましい。支持部材４０ｂの固定方法は、特に制限はなく、両面テープ、接着剤、ホットメルト剤等により固定できる。また、シートを絞り加工する事によっても付与することが可能である。また、熱融着による固定しても構わない。
尚、支持部材４０ｂの材質としては、親水性多孔質シート４０ｂと同一の材料を好適に採用することができ、この場合、当該支持部材４０ｂの表面からも噴霧水を蒸発させることができ、放熱促進効果をより一層良好に発揮する。 As shown in FIGS. 2A and 2B, the hydrophilic porous sheet 40a is adhered to the heat exchange surface of the heat exchange fin 22c by an adhesive, a hot melt agent, or the like. There is also a risk of peeling due to the use of. Therefore, as shown in FIG. 2 (b), between the pair of hydrophilic porous sheets 40a provided between the pair of heat exchange fins 22c, a gap is formed between them. A plurality of support members 40b are provided to support in a direction away from each other in a direction orthogonal to the heat exchange surface. The support member 40b is preferably made of the same hydrophilic material as the hydrophilic porous sheet 40a.
The height of the support member 40b (height in the direction orthogonal to the heat exchange surface: l in FIG. 2) is preferably 1.0 mm or greater and 3.0 mm or less. If it is lower than 1.0 mm, the resistance of the outdoor air OA increases, which is not preferable. If it is higher than 3.0 mm, the efficiency of heat exchange decreases, which is not preferable. The shape of the support member 40b is not particularly limited, such as a cylindrical shape or a rectangular parallelepiped shape. When the cylindrical shape is employed, the diameter of the support member 40b is desirably set to 3.0 mm or more and 6.0 mm or less in order to efficiently maintain the strength and evaporate the sheet surface. There is no restriction | limiting in particular in the fixing method of the supporting member 40b, It can fix with a double-sided tape, an adhesive agent, a hot-melt agent, etc. It can also be applied by drawing the sheet. Moreover, you may fix by heat sealing | fusion.
As the material of the support member 40b, the same material as that of the hydrophilic porous sheet 40b can be preferably used. In this case, the spray water can be evaporated also from the surface of the support member 40b, and the heat dissipation. The acceleration effect is exhibited even better.

尚、図１に示すように、室外機２０の内部には、室外熱交換器２２に導かれる室外空気ＯＡの湿度を検出する湿度センサＨ（湿度検出手段の一例）と、室外空気ＯＡの温度を検出する温度センサＴ（温度検出手段の一例）とを備えており、制御装置３０は、湿度センサＨ、温度センサＴ、及び室外ファン２２ａの回転数に基づいて、噴霧ノズル４１からの水噴霧量を、親水性多孔質シート４０ａからのドレン水の発生を防止可能な噴霧量に設定する。
制御装置４０は、設定する水噴霧量を、例えば、親水性多孔質シート４０ａからのドレン水の発生を防止する噴霧量で、且つ、当該親水性多孔質シート４０ａでの噴霧水の気化蒸発に伴う蒸発熱が最大となる噴霧量に設定し、経済性及び放熱促進効果を向上する。
上述の如く、制御装置３０が、噴霧量設定手段として好適に機能する。 As shown in FIG. 1, the outdoor unit 20 includes a humidity sensor H (an example of humidity detection means) that detects the humidity of the outdoor air OA guided to the outdoor heat exchanger 22, and the temperature of the outdoor air OA. And a temperature sensor T (an example of temperature detecting means) for detecting the water spray from the spray nozzle 41 on the basis of the humidity sensor H, the temperature sensor T, and the rotational speed of the outdoor fan 22a. The amount is set to a spray amount capable of preventing the generation of drain water from the hydrophilic porous sheet 40a.
The control device 40 sets the water spray amount to be, for example, a spray amount that prevents generation of drain water from the hydrophilic porous sheet 40a, and vaporization and evaporation of the spray water on the hydrophilic porous sheet 40a. The spraying amount with which the heat of evaporation accompanying it is maximized is set to improve the economic efficiency and the heat dissipation promotion effect.
As described above, the control device 30 preferably functions as the spray amount setting means.

本願にあっては、これまで説明したように、フィンチューブ型の室外熱交換器２２と、その熱交換用フィン２２ｃの熱交換面に設けられる親水性多孔質シート４０ａと、一対の熱交換用フィン２２ｃの間の一対の親水性多孔質シート４０ａの間を支持する支持部材４０ｂと、水噴霧装置４０とから構成される熱交換装置単独でも、十分に放熱促進効果を発揮するものであり、この意味で、当該熱交換装置も、本願の権利範囲に含まれるものである。 In the present application, as described above, the fin-tube type outdoor heat exchanger 22, the hydrophilic porous sheet 40a provided on the heat exchange surface of the heat exchange fin 22c, and a pair of heat exchanges Even the heat exchange device alone constituted by the support member 40b that supports the space between the pair of hydrophilic porous sheets 40a between the fins 22c and the water spray device 40 sufficiently exhibits a heat dissipation promoting effect, In this sense, the heat exchange device is also included in the scope of rights of the present application.

次に、冷房能力４ｋＷとする場合に、本願に係る空調システム１００の優位性を示すべく、行ったシミュレーションの結果を、従来のエアコンに対して行ったシミュレーションの結果と対比する形態で、以下に示す。 Next, in order to show the superiority of the air conditioning system 100 according to the present application when the cooling capacity is 4 kW, the result of the simulation performed is compared with the result of the simulation performed on the conventional air conditioner in the following manner. Show.

本願に係る空調システム１００、及び従来のエアコンの双方において、室外空気ＯＡとして、温度３５℃、露点２４℃のＤｒｙ空気を用いる場合のシミュレーションを行った。
表１は、本願に係る空調システム１００に係るシミュレーションの前提条件等を示すものであり、表２は、従来のエアコンに係るシミュレーションの前提上限等を示すものであり、本願に係る空調システム１００では、室外熱交換器２２への水噴霧量を、１０ｋｇ／ｈとしている。
本願の空調システム１００は、噴霧ノズル４１から１０ｋｇ／ｈだけ水を噴霧すると共に、当該噴霧水を室外熱交換器２２の熱交換用フィン２２ａの熱交換面に設けられる親水性多孔質シート４０ａに保水することで、室外熱交換器２２を通過する室外空気ＯＡの流量としては、圧力損失の関係で、２３５０ｍ³／ｈから１８５０ｍ³／ｈに低減することとなるが、冷媒の凝縮圧力及び凝縮温度を、従来のエアコンに比べ、２．５１ＭＰａ、４１．５℃から、１．９５ＭＰａ、３０℃にまで低減できる。このため、圧縮機２１の消費電力は約８６０Ｗから５４０Ｗへ低減でき、システム全体の消費電力を９６１Ｗから約６５４Ｗへ低減でき、３０７Ｗの節電効果が得られる。また、ＣＯＰは、４．１６から６．１２へと向上できる。 In both the air conditioning system 100 according to the present application and the conventional air conditioner, simulation was performed in the case of using Dry air having a temperature of 35 ° C. and a dew point of 24 ° C. as the outdoor air OA.
Table 1 shows the preconditions of the simulation related to the air conditioning system 100 according to the present application, and Table 2 shows the upper limit of the simulation related to the conventional air conditioner. The amount of water sprayed onto the outdoor heat exchanger 22 is 10 kg / h.
The air conditioning system 100 of the present application sprays water at a rate of 10 kg / h from the spray nozzle 41 and applies the spray water to the hydrophilic porous sheet 40 a provided on the heat exchange surface of the heat exchange fin 22 a of the outdoor heat exchanger 22. By holding the water, the flow rate of the outdoor air OA passing through the outdoor heat exchanger 22 is reduced from 2350 m ³ / h to 1850 m ³ / h due to the pressure loss. The temperature can be reduced from 2.51 MPa, 41.5 ° C. to 1.95 MPa, 30 ° C. as compared to a conventional air conditioner. For this reason, the power consumption of the compressor 21 can be reduced from about 860 W to 540 W, the power consumption of the entire system can be reduced from 961 W to about 654 W, and a power saving effect of 307 W can be obtained. Also, the COP can be improved from 4.16 to 6.12.

尚、経済性の観点からは、１０ｋｇ／ｈの水噴霧量に関し、単位量当たりの水道料金を９７円／ｍ³とすると、毎時０．９７円の水道料金がかかるが、単位量当たりの電気代を３０．２３円／ｋＷｈとすると、毎時１０．２６円の電気料金を低減できるため、トータルとしては、毎時９．２９円の削減ができる。 From an economic point of view, regarding a water spray rate of 10 kg / h, if the water charge per unit amount is 97 yen / m ³ , a water charge of 0.97 yen per hour is required. If the cost is 30.23 yen / kWh, the electricity charge of 10.26 yen per hour can be reduced, so the total can be reduced by 9.29 yen per hour.

また、本発明に係る空調システム１００で冷房運転を実行した場合の凝縮器Ｇとしての室外熱交換器２２を通過する空気ＯＡの状態変化につき、図３の空気線図に基づいて説明すると、室外の空気ＯＡは、冷却領域Ｓ１で水噴霧装置４０から水噴霧を受けることにより、当該噴霧水の蒸発潜熱が奪われる形態で露点まで降温する（図３でＰ０−Ｐ１）。次に、空気ＯＡは、親水性多孔質シート４０ａから蒸発した水の蒸発潜熱が奪われると共に、熱交換用フィン２２ｃから熱を回収する。尚、親水性多孔質シート４０ａから蒸発した水の蒸発潜熱よりも、熱交換用フィン２２ｃから放熱される放熱量の方が大きいため、図３のＰ１−Ｐ２間では、飽和状態のまま空気ＯＡの温度は昇温する。最後に、空気ＯＡは、空気の流れ方向で下流側部位の熱交換用フィン２２ｃで、親水性多孔質シート４０ａが設けられていない部位と熱交換して昇温し、最終的に、３１．２℃程度の空気となる。
一方、従来のエアコンの場合、図３でＰ０−Ｐ４で示されるように、湿度の変化を伴うことなく、単に４１．４℃まで昇温するのみとなる。 The state change of the air OA passing through the outdoor heat exchanger 22 as the condenser G when the cooling operation is executed in the air conditioning system 100 according to the present invention will be described based on the air diagram of FIG. The air OA is cooled to the dew point in such a manner that the latent heat of vaporization of the spray water is taken away by receiving water spray from the water spray device 40 in the cooling region S1 (P0-P1 in FIG. 3). Next, the air OA is deprived of the latent heat of evaporation of the water evaporated from the hydrophilic porous sheet 40a and collects heat from the heat exchange fins 22c. Note that the amount of heat released from the heat exchanging fins 22c is larger than the latent heat of evaporation of the water evaporated from the hydrophilic porous sheet 40a, so the air OA remains saturated between P1 and P2 in FIG. The temperature rises. Finally, the air OA heat-exchanges with the part where the hydrophilic porous sheet 40a is not provided by the heat exchange fins 22c at the downstream part in the air flow direction, and the temperature is finally increased. The air is about 2 ° C.
On the other hand, in the case of a conventional air conditioner, as shown by P0-P4 in FIG. 3, the temperature is simply raised to 41.4 ° C. without a change in humidity.

また、本願の空調システム１００で冷房運転を行う場合の凝縮器Ｇとして働く室外熱交換器２２での冷媒及び室外空気ＯＡの温度プロファイルを図４（ａ）に、従来のエアコンでの冷媒及び室外空気ＯＡの温度プロファイルを図４（ｂ）に示す。
図４に示すように、本願の空調システム１００は、同一の冷房能力を発揮する従来のエアコンに対し、冷房能力が低い状態でも、凝縮器Ｇでの冷媒及び室外空気ＯＡの温度を、十分に下げられていることがわかる。 Moreover, the temperature profile of the refrigerant | coolant and outdoor air OA in the outdoor heat exchanger 22 which works as the condenser G at the time of cooling operation with the air-conditioning system 100 of this application is shown in FIG. A temperature profile of the air OA is shown in FIG.
As shown in FIG. 4, the air conditioning system 100 of the present application sufficiently sets the temperature of the refrigerant and the outdoor air OA in the condenser G even in a state where the cooling capacity is low as compared with the conventional air conditioner that exhibits the same cooling capacity. You can see that it has been lowered.

〔別実施形態〕
（１）上記実施形態では、空調システム１００の一例として、冷房運転と暖房運転との双方を実行可能な空調システム１００を例示したが、冷房運転のみを実行可能な冷凍機であっても、本発明は有効に機能する。
更に、空調システム１００を冷凍機として用いる場合、暖房運転が実行されることはないから、親水性多孔質シート４０ａは、空気の流れ方向で、熱交換用フィン２２ｃの熱交換面全面に設ける構成を採用することが好ましい。 [Another embodiment]
(1) In the above embodiment, as an example of the air conditioning system 100, the air conditioning system 100 that can perform both the cooling operation and the heating operation is illustrated. However, even if the refrigerator is capable of performing only the cooling operation, The invention works effectively.
Further, when the air conditioning system 100 is used as a refrigerator, the heating operation is not performed, and thus the hydrophilic porous sheet 40a is provided on the entire heat exchange surface of the heat exchange fin 22c in the air flow direction. Is preferably adopted.

（２）上記実施形態においては、水噴霧手段としての噴霧ノズル４１の水噴霧方向は、凝縮器Ｇとしての室外熱交換器２２に対し、空気の流れ方向で上流側から下流側への方向である構成例を示した。しかしながら、本発明の目的を達成する意味からは、噴霧ノズル４１の水噴霧方向は、例えば、凝縮器Ｇとしての室外熱交換器２２に対し、鉛直方向で上方側から下方側への方向であっても良い。 (2) In the above embodiment, the water spray direction of the spray nozzle 41 as the water spray means is the direction from the upstream side to the downstream side in the air flow direction with respect to the outdoor heat exchanger 22 as the condenser G. A configuration example is shown. However, from the viewpoint of achieving the object of the present invention, the water spray direction of the spray nozzle 41 is, for example, a direction from the upper side to the lower side in the vertical direction with respect to the outdoor heat exchanger 22 as the condenser G. May be.

（３）上記実施形態においては、水噴霧装置４０は、室外機２０の内部に設けられる例を示したが、別に、室外機２０の外部に設ける構成を採用しても構わない。
特に、凝縮器Ｇとしての室外熱交換器２２へ、比較的低温の空気を導いて放熱を促進させる意味からは、水噴霧装置４０の噴霧ノズル４１を、室外熱交換器２２から、空気の流れ方向で上流側の離れた部位に備えることで、噴霧水の気化潜熱を奪わせた後の空気を、室外熱交換器２２へ導くことが好ましい。 (3) In the said embodiment, although the water spray apparatus 40 showed the example provided in the inside of the outdoor unit 20, the structure provided in the exterior of the outdoor unit 20 may be employ | adopted separately.
In particular, from the viewpoint of introducing relatively low temperature air to the outdoor heat exchanger 22 as the condenser G to promote heat dissipation, the spray nozzle 41 of the water spray device 40 is flowed from the outdoor heat exchanger 22 to the air flow. It is preferable to guide the air after taking away the latent heat of vaporization of the spray water to the outdoor heat exchanger 22 by providing it at a site away from the upstream side in the direction.

（４）上記実施形態において、親水性多孔質シート４０ａが設けられる領域は、熱交換用フィン２２ｃの熱交換面のうち、空気の流れ方向で上流側部位（空気の流れ方向で熱交換面の略半分を占める上流側領域）であるとしたが、別に略半分である必要はない。
また、噴霧ノズル４１からの噴霧水が届く場合には、空気の流れ方向で下流側部位に設けるようにしても構わない。
また、親水性多孔質シート４０ａは、熱交換用フィン２２ｃの熱交換面のうち一方側と他方側の面の両方に設ける例を示したが、別に熱交換面のうち何れか一方側の面に設ける構成を採用しても構わない。 (4) In the above-described embodiment, the region where the hydrophilic porous sheet 40a is provided is an upstream portion in the air flow direction (of the heat exchange surface in the air flow direction) among the heat exchange surfaces of the heat exchange fins 22c. The upstream region occupies approximately half), but need not be approximately half separately.
Moreover, when the spray water from the spray nozzle 41 reaches, you may make it provide in a downstream site | part in the air flow direction.
Moreover, although the hydrophilic porous sheet 40a showed the example provided in both the surface of one side and the other side among the heat exchange surfaces of the fin 22c for heat exchange, the surface of any one side among heat exchange surfaces was shown separately. You may employ | adopt the structure provided in.

（５）噴霧ノズル４１の上下方向（図２で矢印Ｚに沿う方向）での設置位置について説明を追加すると、親水性多孔質シート４０ａが親水性を有し噴霧された水が噴霧位置から拡散する意味からは、上下方向の全域に亘って設ける必要はなく、一定の間隔を隔てて設けられることが好ましい。
更に、好ましくは、親水性多孔質シート４０ａが、上下（鉛直）方向に延びる状態で設けられ、吸水した水が上方から下方へ自重により落下する意味からは、上下方向で中央より上方側に設けられることが好ましい。 (5) If description is added about the installation position in the up-down direction (direction along arrow Z in FIG. 2) of the spray nozzle 41, the hydrophilic porous sheet 40a has hydrophilicity and sprayed water diffuses from the spray position. From this point of view, it is not necessary to provide the entire region in the vertical direction, and it is preferable that they are provided at regular intervals.
Further, preferably, the hydrophilic porous sheet 40a is provided in a state extending in the vertical (vertical) direction, and is provided above the center in the vertical direction in the sense that the absorbed water falls from the upper side to the lower side due to its own weight. It is preferred that

本発明の空調システム及び熱交換装置は、水噴霧量を低減することができながらも、噴霧水を凝縮器（室外熱交換器）で適切に気化蒸発させて十分な放熱促進効果を得ることができる空調システム、及び熱交換装置として、有効に利用可能である。 The air-conditioning system and heat exchange device of the present invention can reduce the amount of water spray, but can appropriately vaporize and evaporate the spray water with a condenser (outdoor heat exchanger) to obtain a sufficient heat dissipation promotion effect. It can be effectively used as an air conditioning system that can be used and a heat exchange device.

２１：圧縮機
２２：室外熱交換器
２２ａ：室外ファン
２２ｂ：チューブ
２２ｃ：熱交換用フィン
２３：膨張弁
４０：水噴霧装置
４０ａ：親水性多孔質シート
４０ｂ：支持部材
４１：噴霧ノズル
１００：空調システム
Ｃ：冷媒循環回路
Ｇ：凝縮器
Ｓ１：冷却領域
Ｈ：湿度センサ
Ｔ：温度センサ 21: compressor 22: outdoor heat exchanger 22a: outdoor fan 22b: tube 22c: heat exchange fin 23: expansion valve 40: water spray device 40a: hydrophilic porous sheet 40b: support member 41: spray nozzle 100: air conditioning System C: Refrigerant circuit G: Condenser S1: Cooling region H: Humidity sensor T: Temperature sensor

Claims

冷媒を圧縮する圧縮機と、当該圧縮機にて圧縮された冷媒と空気とを熱交換させる形態で冷媒を凝縮させる凝縮器と、凝縮器を通過した後の冷媒を膨張させる膨張弁と、当該膨張弁で膨張した冷媒と空気とを熱交換させる形態で冷媒を蒸発させる蒸発器とに、記載の順に冷媒を循環する冷媒循環回路と、前記凝縮器として働く室外熱交換器の空気流入側に水を噴霧する水噴霧手段とを備えた空調システムであって、
フィンチューブ型の室外熱交換器の熱交換用フィンの上下方向に沿う熱交換面に、親水性を有する親水性多孔質シートを前記熱交換面から熱が伝導する状態で備え、前記水噴霧手段が、前記親水性多孔質シートに拡散状態で水を噴霧する空調システム。 A compressor that compresses the refrigerant, a condenser that condenses the refrigerant in a form in which heat is exchanged between the refrigerant compressed by the compressor and air, an expansion valve that expands the refrigerant after passing through the condenser, In an evaporator that evaporates the refrigerant in a form of heat exchange between the refrigerant expanded by the expansion valve and air, a refrigerant circulation circuit that circulates the refrigerant in the order described, and an air inflow side of the outdoor heat exchanger that functions as the condenser An air conditioning system comprising water spraying means for spraying water,
The water spraying means comprises a hydrophilic porous sheet having hydrophilicity on the heat exchange surface along the vertical direction of the heat exchange fin of the fin tube type outdoor heat exchanger in a state where heat is conducted from the heat exchange surface. However, the air conditioning system sprays water in a diffused state on the hydrophilic porous sheet.

前記親水性多孔質シートは、前記室外熱交換器への空気の流れ方向で、前記熱交換用フィンの前記熱交換面のうち上流側部位に設けられている請求項１に記載の空調システム。 The hydrophilic porous sheet, said air flow direction to the outdoor heat exchanger, an air conditioning system according to claim 1 is provided on the upstream side portion of the heat exchange surface of the for the heat exchanger fins.

上下方向に沿う状態で複数並設された一対の前記熱交換用フィン間に対向する状態で設けられる一対の前記親水性多孔質シートの間には、両者の間に間隙を形成する状態で両者支持する支持部材が設けられている請求項１又は２に記載の空調システム。 Between a pair of the hydrophilic porous sheets provided in a state of being opposed to each other between a pair of the heat exchange fins arranged in parallel in a state along the vertical direction, in a state where a gap is formed between the two The air conditioning system according to claim 1, wherein a supporting member to be supported is provided.

前記支持部材は、前記親水性多孔質シートと同一の親水性を有する材料から構成されている請求項３に記載の空調システム。 The air conditioning system according to claim 3, wherein the support member is made of a material having the same hydrophilicity as the hydrophilic porous sheet.

前記水噴霧手段は、前記室外熱交換器へ向けて水を噴霧する噴霧ノズルを有し、
前記噴霧ノズルは、空気から噴霧水の蒸発潜熱を奪う冷却領域を形成する状態で、前記室外熱交換器への空気の流れ方向において、前記熱交換用フィンから上流側へ離間した部位に設けられている請求項１〜４の何れか一項に記載の空調システム。 The water spray means has a spray nozzle that sprays water toward the outdoor heat exchanger,
The spray nozzle is provided at a position spaced upstream from the heat exchange fin in the air flow direction to the outdoor heat exchanger in a state of forming a cooling region that takes away the latent heat of evaporation of spray water from the air. The air conditioning system according to any one of claims 1 to 4.

前記室外熱交換器に導かれる空気の湿度を検出する湿度検出手段、及び温度を検出する温度検出手段を備え、
前記湿度検出手段にて検出される検出湿度と、前記温度検出手段にて検出される検出温度と、前記室外熱交換器に空気を導く室外ファンの回転数とに基づいて、前記水噴霧手段からの水噴霧量を、前記親水性多孔質シートからのドレン水の発生を防止可能な噴霧量に設定する噴霧量設定手段を備えている請求項１〜５の何れか一項に記載の空調システム。 Humidity detection means for detecting the humidity of air that is introduced into the outdoor heat exchanger, and provided with a temperature detecting means for detecting a temperature,
Based on the detected humidity detected by the humidity detecting means, the detected temperature detected by the temperature detecting means, and the rotational speed of an outdoor fan that guides air to the outdoor heat exchanger, from the water spray means The air-conditioning system as described in any one of Claims 1-5 provided with the spray amount setting means which sets the water spray amount of this to the spray amount which can prevent generation | occurrence | production of the drain water from the said hydrophilic porous sheet. .

冷媒を内部に通流するチューブと熱交換用フィンと、前記チューブ及び前記熱交換用フィンに水を噴霧する水噴霧手段とを備え、前記チューブの内部の冷媒と前記チューブの外部の空気とを熱交換させる熱交換装置であって、
前記熱交換用フィンの上下方向に沿う熱交換面に、親水性を有する親水性多孔質シートを前記熱交換面から熱を伝導する状態で備え、
冷媒を冷却する場合に、前記水噴霧手段が前記親水性多孔質シートに拡散状態で水を噴霧する熱交換装置。 A tube through which the refrigerant flows, a heat exchange fin, and water spraying means for spraying water on the tube and the heat exchange fin; and the refrigerant inside the tube and the air outside the tube. A heat exchange device for exchanging heat,
The heat exchange surface along the vertical direction of the heat exchange fin is equipped with a hydrophilic porous sheet having hydrophilicity in a state of conducting heat from the heat exchange surface,
A heat exchange device in which when the refrigerant is cooled, the water spraying means sprays water in a diffused state on the hydrophilic porous sheet.