JP6761229B2

JP6761229B2 - Air conditioner

Info

Publication number: JP6761229B2
Application number: JP2015155603A
Authority: JP
Inventors: 敦粕谷; 典彦古寺
Original assignee: Takenaka Corp
Current assignee: Takenaka Corp
Priority date: 2015-08-06
Filing date: 2015-08-06
Publication date: 2020-09-23
Anticipated expiration: 2035-08-06
Also published as: JP2017032255A

Description

本発明は、空調対象空間に給気する給気路と、空調対象空間から排気する排気路と、冷媒の液状態とガス状態とでの密度差及び冷媒の圧力差を利用して冷媒を自然循環させることで冷媒を介して排気路を流れる空気と給気路を流れる空気との間で顕熱交換を行う冷媒自然循環式の顕熱交換部が備えられている空調装置に関する。 The present invention uses the air supply path for supplying air to the air-conditioned space, the exhaust path for exhausting from the air-conditioned space, the density difference between the liquid state and the gas state of the refrigerant, and the pressure difference of the refrigerant to naturally provide the refrigerant. The present invention relates to an air conditioner provided with a natural refrigerant circulation type sensible heat exchange unit that exchanges sensible heat between air flowing through an exhaust passage and air flowing through an air supply passage by circulating the refrigerant.

この種の空調装置としては、例えば、特許文献１に示すように、前記給気路、前記排気路、前記冷媒自然循環式の顕熱交換部に加え、給気路を流れる空気から水分を吸着して排気路を流れる空気に水分を放出する除湿ロータ（除湿部の一例）を備えた空調装置が知られている。 As an air conditioner of this type, for example, as shown in Patent Document 1, in addition to the air supply passage, the exhaust passage, and the refrigerant natural circulation type manifest heat exchange unit, moisture is adsorbed from the air flowing through the air supply passage. An air conditioner equipped with a dehumidifying rotor (an example of a dehumidifying unit) that discharges moisture into the air flowing through the exhaust passage is known.

この空調装置では、冷媒自然循環式の顕熱交換部を採用することで、冷媒の搬送動力が不要で、且つ、顕熱ロータ等に比べ圧損も少なくて済むようにしている。更に、この冷媒自然循環式の顕熱交換部により、給気路を流れる空気で除湿ロータよりも下流側の吸着除湿後の空気から水分吸着で生じた吸着熱（温熱）を回収し、その吸着熱を用いて排気路を流れる空気で除湿ロータよりも上流側の空気（除湿ロータの再生に用いられる空気）を加熱して再生に有利な温度状態とすることで、除湿を含む空調対象空間の空調を効率的に行い、高い省エネ性を実現している。 By adopting a sensible heat exchange unit of a natural refrigerant circulation type in this air conditioner, the power for transporting the refrigerant is not required, and the pressure loss is smaller than that of a sensible heat rotor or the like. Furthermore, this natural refrigerant circulation type sensible heat exchange unit recovers the adsorption heat (heat) generated by moisture adsorption from the air after dehumidification and adsorption on the downstream side of the dehumidifying rotor with the air flowing through the air supply path, and adsorbs the adsorption heat (heat). By using heat to heat the air upstream of the dehumidifying rotor (air used for regeneration of the dehumidifying rotor) with the air flowing through the exhaust passage to a temperature state that is advantageous for regeneration, the space subject to air conditioning including dehumidification It efficiently air-conditions and realizes high energy saving.

ところで、空調対象空間への給気温度は、除湿ロータによる吸着除湿過程で温度上昇した空気を冷媒自然循環式の顕熱交換部で冷却したものとなる。ここで、顕熱交換部での顕熱交換量は、給気路を流れる空気の状態と、排気路を流れる空気の状態と、自然循環式の顕熱交換部を流れる冷媒の状態との三者の相対関係で決まるが、この従来の空調装置では、これら三者の相対関係を自然の成り行きに任せて自由に変化させるようにしていた。 By the way, the air supply temperature to the air-conditioned space is obtained by cooling the air whose temperature has risen in the process of adsorption and dehumidification by the dehumidifying rotor by the refrigerant natural circulation type sensible heat exchange section. Here, the amount of sensible heat exchange in the sensible heat exchange section is three: the state of air flowing through the air supply path, the state of air flowing through the exhaust path, and the state of the refrigerant flowing through the naturally circulating sensible heat exchange section. Although it is determined by the relative relationship between the two, in this conventional air conditioner, the relative relationship between these three is left to the natural course and can be changed freely.

特開２００８−１１１６４９号公報Japanese Unexamined Patent Publication No. 2008-1116949

上記従来の技術では、上述した三者の相対関係が自然の成り行きで変化するのに伴い、空調対象空間への給気温度に影響する顕熱交換部での顕熱交換量も同様に成り行きで変化することになる。そのため、空調対象空間への給気温度が不測に変化して空調対象空間の快適性が損なわれ易い問題があった。 In the above-mentioned conventional technique, as the relative relationship between the above-mentioned three parties changes naturally, the amount of exposed heat exchange at the exposed heat exchange section, which affects the air supply temperature to the air-conditioned space, also changes. It will change. Therefore, there is a problem that the air supply temperature to the air-conditioned space is unexpectedly changed and the comfort of the air-conditioned space is easily impaired.

この実情に鑑み、本発明の主たる課題は、冷媒自然循環式の顕熱交換部により給気路を流れる空気と排気路を流れる空気との間で顕熱を融通して空調対象空間の空調を効率的に行えながら、空調対象空間への給気温度を安定させて空調対象空間の快適性も得られる省エネ性と快適性とを両立した空調装置を提供する点にある。 In view of this situation, the main subject of the present invention is to air-condition the air-conditioned space by accommodating the sensible heat between the air flowing through the air supply path and the air flowing through the exhaust path by the refrigerant natural circulation type sensible heat exchange unit. The point is to provide an air conditioner that achieves both energy saving and comfort by stabilizing the air supply temperature to the air-conditioned space and obtaining the comfort of the air-conditioned space while efficiently performing the air conditioning.

本発明の第１特徴構成は、空調対象空間に給気する給気路と、
空調対象空間から排気する排気路と、
冷媒の液状態とガス状態とでの密度差及び冷媒の圧力差を利用して冷媒を自然循環させることで冷媒を介して前記給気路を流れる空気と前記排気路を流れる空気との間で顕熱交換を行う冷媒自然循環式の顕熱交換部が備えられている空調装置であって、
前記給気路による空調対象空間への給気温度を検出する給気温度検出手段と、
前記冷媒自然循環式の顕熱交換部による前記排気路を流れる空気と前記給気路を流れる空気との間での顕熱交換量を調整する顕熱交換量調整手段と、
前記給気温度検出手段による検出結果に基づいて前記顕熱交換量調整手段を制御して前記給気路による空調対象空間への給気温度を設定給気温度に調整する制御手段と、
前記給気路を流れる空気で前記冷媒自然循環式の顕熱交換部による顕熱交換が行われる前の空気を除湿する除湿部が備えられ、
前記除湿部が、前記給気路を流れる空気を露点温度以下まで冷却して除湿する冷却除湿式の除湿部であり、
前記冷媒自然循環式の顕熱交換部は、前記排気路を流れる空調対象空間の空気の顕熱を回収し、前記給気路を流れる空気で前記冷却除湿式の除湿部による冷却除湿後の空気を再熱するように構成され、
前記排気路には、前記冷媒自然循環式の顕熱交換部による顕熱交換を行って排気する第一排気路と、前記冷媒自然循環式の顕熱交換部による顕熱交換を行わずに排気する第二排気路とが備えられ、
前記顕熱交換量調整手段が、前記排気路にて排気する空気のうち、前記第一排気路にて排気する空気と前記第二排気路にて排気する空気との風量比を調整する排気風量比調整部から構成され、
前記制御手段は、前記給気温度検出手段による検出結果に基づいて前記排気風量比調整部を制御して前記風量比を調整することで前記給気路による空調対象空間への給気温度を設定給気温度に調整する点にある。
本発明の第２特徴構成は、空調対象空間に給気する給気路と、
空調対象空間から排気する排気路と、
冷媒の液状態とガス状態とでの密度差及び冷媒の圧力差を利用して冷媒を自然循環させることで冷媒を介して前記給気路を流れる空気と前記排気路を流れる空気との間で顕熱交換を行う冷媒自然循環式の顕熱交換部が備えられている空調装置であって、
前記給気路による空調対象空間への給気温度を検出する給気温度検出手段と、
前記冷媒自然循環式の顕熱交換部による顕熱交換量を調整する顕熱交換量調整手段と、
前記給気温度検出手段による検出結果に基づいて前記顕熱交換量調整手段を制御して前記給気路による空調対象空間への給気温度を設定給気温度に調整する制御手段と、
前記給気路を流れる空気で前記冷媒自然循環式の顕熱交換部による顕熱交換が行われる前の空気を除湿する除湿部が備えられ、
前記除湿部が、前記給気路を流れる空気から水分を吸着し、前記排気路を流れる空気に水分を放出する吸着除湿式の除湿部であり、
前記冷媒自然循環式の顕熱交換部は、前記排気路を流れる空調対象空間の空気の顕熱を回収し、前記給気路を流れる空気で前記吸着除湿式の除湿部による吸着除湿後の空気を冷却するように構成され、
前記排気路には、前記冷媒自然循環式の顕熱交換部による顕熱交換を行って排気する第一排気路と、前記冷媒自然循環式の顕熱交換部による顕熱交換を行わずに排気する第二排気路とが備えられ、
前記顕熱交換量調整手段が、前記排気路にて排気する空気のうち、前記第一排気路にて排気する空気と前記第二排気路にて排気する空気との風量比を調整する排気風量比調整部から構成され、
前記制御手段は、前記給気温度検出手段による検出結果に基づいて前記排気風量比調整部を制御して前記風量比を調整することで前記給気路による空調対象空間への給気温度を設定給気温度に調整する点にある。
The first characteristic configuration of the present invention includes an air supply path for supplying air to the air-conditioned space and
The exhaust path that exhausts from the air-conditioned space and
By naturally circulating the refrigerant by utilizing the density difference between the liquid state and the gas state of the refrigerant and the pressure difference of the refrigerant, between the air flowing through the air supply passage and the air flowing through the exhaust passage through the refrigerant. An air conditioner equipped with a natural circulation type refrigerant heat exchange unit that exchanges heat.
A supply air temperature detecting means for detecting the supply air temperature to the air-conditioned space by the air supply path, and
A sensible heat exchange amount adjusting means for adjusting the sensible heat exchange amount between the air flowing through the exhaust passage and the air flowing through the air supply passage by the refrigerant natural circulation type sensible heat exchange unit.
A control means for controlling the actual heat exchange amount adjusting means based on the detection result by the supply air temperature detecting means to adjust the supply air temperature to the air-conditioned space by the supply passage to the set supply air temperature.
A dehumidifying section is provided to dehumidify the air flowing through the air supply path before the sensible heat exchange is performed by the refrigerant natural circulation type sensible heat exchange section.
The dehumidifying section is a cooling dehumidifying section that cools and dehumidifies the air flowing through the air supply passage to a temperature below the dew point temperature.
The refrigerant natural circulation type sensible heat exchange unit recovers the sensible heat of the air in the air-conditioned space flowing through the exhaust passage, and the air flowing through the air supply passage is cooled and dehumidified by the cooling and dehumidifying dehumidifying unit. It is configured to reheat a
In the exhaust passage, a first exhaust passage for exhausting by performing a sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit and an exhaust without performing sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit. It is equipped with a second exhaust passage to
The exhaust air amount adjusting means adjusts the air volume ratio between the air exhausted in the first exhaust passage and the air exhausted in the second exhaust passage among the air exhausted in the exhaust passage. It consists of a ratio adjustment unit
The control means sets the air supply temperature to the air-conditioned space by the air supply passage by controlling the exhaust air volume ratio adjusting unit based on the detection result by the air supply temperature detecting means and adjusting the air volume ratio. The point is to adjust to the supply air temperature .
The second characteristic configuration of the present invention includes an air supply path for supplying air to the air-conditioned space and
The exhaust path that exhausts from the air-conditioned space and
By naturally circulating the refrigerant by utilizing the density difference between the liquid state and the gas state of the refrigerant and the pressure difference of the refrigerant, between the air flowing through the air supply passage and the air flowing through the exhaust passage through the refrigerant. An air conditioner equipped with a natural circulation type refrigerant heat exchange unit that exchanges heat.
A supply air temperature detecting means for detecting the supply air temperature to the air-conditioned space by the air supply path, and
A sensible heat exchange amount adjusting means for adjusting the sensible heat exchange amount by the refrigerant natural circulation type sensible heat exchange unit, and
A control means for controlling the actual heat exchange amount adjusting means based on the detection result by the supply air temperature detecting means to adjust the supply air temperature to the air-conditioned space by the supply passage to the set supply air temperature.
A dehumidifying section is provided to dehumidify the air flowing through the air supply path before the sensible heat exchange is performed by the refrigerant natural circulation type sensible heat exchange section.
The dehumidifying unit is an adsorption dehumidifying dehumidifying unit that adsorbs moisture from the air flowing through the air supply passage and releases the moisture to the air flowing through the exhaust passage.
The refrigerant natural circulation type sensible heat exchange unit recovers the sensible heat of the air in the air-conditioned space flowing through the exhaust passage, and the air flowing through the air supply passage is the air after adsorption and dehumidification by the adsorption dehumidification and dehumidification portion. It is configured to cool a
In the exhaust passage, a first exhaust passage for exhausting by performing a sensible heat exchange by the refrigerant natural circulation type sensible heat exchange section and exhaust without performing sensible heat exchange by the refrigerant natural circulation type sensible heat exchange section. It is equipped with a second exhaust passage to
The exhaust air amount adjusting means adjusts the air volume ratio between the air exhausted in the first exhaust passage and the air exhausted in the second exhaust passage among the air exhausted in the exhaust passage. It consists of a ratio adjustment unit
The control means sets the air supply temperature to the air-conditioned space by the air supply passage by controlling the exhaust air volume ratio adjusting unit based on the detection result by the supply air temperature detecting means and adjusting the air volume ratio. The point is to adjust to the supply air temperature .

上記構成によれば、まずは、冷媒自然循環式の顕熱交換部により、給気路を流れる空気と排気路を流れる空気との間で顕熱を効率的に融通（回収して利用）することで、空調対象空間の空調を効率的に行える。そして、制御手段により、給気温度検出手段の検出結果に基づいて顕熱交換量調整手段を制御して空調対象空間への給気温度を設定給気温度に調整することで、空調対象空間への給気温度を安定させて空調対象空間の空調を効果的に行える。これらのことから、省エネ性と快適性とを両立することができる。
また、冷媒自然循環式の顕熱交換部による顕熱交換を行って排気する第一排気路を流れる空気の風量が変化すれば、冷媒自然循環式の顕熱交換部による顕熱交換量が変化することになる。そのため、上記構成によれば、顕熱交換量調整手段を構成する排気風量比調整部により、第一排気路にて排気する空気と第二排気路にて排気する空気との風量比を調整することで、全体としての排気量を維持しながら、第一排気路を流れる空気の風量を調整して、冷媒自然循環式の顕熱交換部による顕熱交換量を調整することができる。
したがって、空調対象空間への給気量及び空調対象空間からの排気量は換気に必要な設定量に維持しながら、顕熱交換部による顕熱交換量を調整することができ、空調対象空間への給気温度の調整を効果的に行える。
According to the above configuration, first, the sensible heat exchange unit of the refrigerant natural circulation type efficiently exchanges (recovers and uses) the sensible heat between the air flowing through the air supply passage and the air flowing through the exhaust passage. Therefore, it is possible to efficiently air-condition the air-conditioned space. Then, the control means controls the sensible heat exchange amount adjusting means based on the detection result of the supply air temperature detecting means to adjust the supply air temperature to the air conditioning target space to the set supply air temperature, thereby moving to the air conditioning target space. It is possible to effectively air-condition the air-conditioned space by stabilizing the air supply temperature. From these things, it is possible to achieve both energy saving and comfort.
Further, if the air volume of the air flowing through the first exhaust passage that is exhausted by performing the sensible heat exchange by the refrigerant natural circulation type sensible heat exchange section changes, the sensible heat exchange amount by the refrigerant natural circulation type sensible heat exchange section changes. Will be done. Therefore, according to the above configuration, the exhaust air volume ratio adjusting unit constituting the manifest heat exchange amount adjusting means adjusts the air volume ratio between the air exhausted in the first exhaust passage and the air exhausted in the second exhaust passage. As a result, it is possible to adjust the air volume of the air flowing through the first exhaust passage while maintaining the exhaust gas volume as a whole, and adjust the sensible heat exchange amount by the sensible heat exchange unit of the refrigerant natural circulation type.
Therefore, the amount of air supply to the air-conditioned space and the amount of exhaust air from the air-conditioned space can be adjusted to the air-conditioned space while maintaining the set amount required for ventilation. The air supply temperature can be effectively adjusted.

上記構成によれば、給気路を流れる空気を除湿部で除湿することで、空調対象空間への給気湿度を低下させることができる。更に、冷媒自然循環式の顕熱交換部により、給気路を流れる空気で除湿部による除湿後の空気と、排気路を流れる空気との間で顕熱を融通しながら、温度変化を伴い易い除湿部による除湿後の空気の温度を設定給気温度に調整することができる。したがって、除湿を含む空調対象空間の空調を効率的且つ効果的に行える。 According to the above configuration, the air supply humidity to the air-conditioned space can be reduced by dehumidifying the air flowing through the air supply passage with the dehumidifying unit. Furthermore, the natural refrigerant circulation type sensible heat exchange unit easily causes temperature changes while accommodating sensible heat between the air flowing through the air supply path and the air after dehumidification by the dehumidifying section and the air flowing through the exhaust path. The temperature of the air after dehumidification by the dehumidifying section can be adjusted to the set supply air temperature. Therefore, air conditioning of the air-conditioned space including dehumidification can be performed efficiently and effectively.

本発明の第３特徴構成は、前記給気路を流れる空気で前記冷媒自然循環式の顕熱交換部による顕熱交換が行われる前の空気と、前記排気路を流れる空気との間で全熱交換を行う全熱交換部が備えられ、
前記第一排気路は、前記冷媒自然循環式の顕熱交換部による顕熱交換を行って更に前記全熱交換部による全熱交換を行って排気するように構成され、
前記第二排気路は、前記冷媒自然循環式の顕熱交換部による顕熱交換を行わずに前記全熱交換部による全熱交換を行って排気するように構成されている点にある。
The third characteristic configuration of the present invention is that the air flowing through the air supply passage is completely between the air flowing through the exhaust passage and the air before the actual heat exchange by the refrigerant natural circulation type demonstrative heat exchange unit is performed. total heat exchange unit is provided to perform heat exchange,
The first exhaust passage is configured to perform sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit and further perform total heat exchange by the total heat exchange unit to exhaust the exhaust gas.
The second exhaust passage is configured to exhaust by performing total heat exchange by the total heat exchange unit without performing sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit .

上記構成によれば、全熱交換部により、給気路を流れる空気で冷媒自然循環式の顕熱交換部による顕熱交換が行われる前の空気と排気路を流れる空気との間で全熱（顕熱及び潜熱）を融通することで、空調対象空間の空調を一層効率的に行える。しかも、冷媒自然循環式の顕熱交換部により、給気路を流れる空気で全熱交換部による全熱交換後の空気と排気路を流れる空気との間で顕熱を融通しながら、温度変化を伴い易い全熱交換部による全熱交換の後の空気の温度を設定給気温度に調整することができる。したがって、空調対象空間の空調を一層効率的且つ効果的に行える。 According to the above configuration, the total heat exchange section heats the air flowing through the air supply passage between the air before the sensible heat exchange by the refrigerant natural circulation type sensible heat exchange section and the air flowing through the exhaust passage. By accommodating (sensible heat and latent heat), air conditioning of the air conditioning target space can be performed more efficiently. Moreover, the natural refrigerant circulation type sensible heat exchange unit allows the air flowing through the air supply passage to change the temperature while accommodating the sensible heat between the air after the total heat exchange by the total heat exchange unit and the air flowing through the exhaust passage. The temperature of the air after total heat exchange by the total heat exchange unit, which tends to be accompanied by the above, can be adjusted to the set air supply temperature. Therefore, the air conditioning of the air conditioning target space can be performed more efficiently and effectively.

前記顕熱交換量調整手段が、前記冷媒自然循環式の顕熱交換部において自然循環させる冷媒の流量を調整する冷媒流量調整部から構成されていてもよい。
Previous SL sensible exchange amount adjusting means may be constituted by the refrigerant flow rate adjusting unit that adjusts the flow rate of the refrigerant to be naturally circulated in the sensible heat exchange section of the refrigerant natural circulation.

上記構成によれば、顕熱交換量調整手段を構成する冷媒流量調整部により顕熱交換部で自然循環する冷媒の流量を調整することで、空調対象空間への給気量及び空調対象空間からの排気量は換気に必要な設定量に維持しながら、顕熱交換部による顕熱交換量を調整することができ、空調対象空間への給気温度の調整を効果的に行える。 According to the above configuration, the amount of air supplied to the air-conditioned space and the air-conditioned space can be determined by adjusting the flow rate of the refrigerant naturally circulating in the exposed heat exchange unit by the refrigerant flow rate adjusting unit constituting the visible heat exchange amount adjusting means. The amount of sensible heat exchanged by the sensible heat exchange unit can be adjusted while maintaining the amount of exhausted air at the set amount required for ventilation, and the air supply temperature to the air-conditioned space can be effectively adjusted.

第１実施形態の空調装置の概略構成図Schematic configuration diagram of the air conditioner of the first embodiment 第２実施形態の空調装置の概略構成図Schematic configuration diagram of the air conditioner of the second embodiment

本発明に係る空調装置の実施形態を図面に基づいて説明する。
〔第１実施形態〕
この空調装置１００は、図１に示すように、屋内Ｒ（空調対象空間の一例）の換気・除湿・温調を行うものであり、屋内Ｒに給気する給気路１０、屋内Ｒから排気する排気路２０、給排気間で全熱交換を行う全熱交換部３０、給気路１０を流れる空気を除湿する除湿部４０、給排気間で顕熱交換を行う冷媒自然循環式の顕熱交換部５０等が備えられている。 An embodiment of the air conditioner according to the present invention will be described with reference to the drawings.
[First Embodiment]
As shown in FIG. 1, the air conditioner 100 ventilates, dehumidifies, and adjusts the temperature of the indoor R (an example of an air conditioning target space), and exhausts air from the air supply passage 10 that supplies air to the indoor R and the indoor R. Exhaust passage 20 to be used, total heat exchange unit 30 to exchange total heat between air supply and exhaust, dehumidifying unit 40 to dehumidify the air flowing through the air supply passage 10, and natural circulation type refrigerant heat exchange between air supply and exhaust. A replacement unit 50 and the like are provided.

前記給気路１０は、給気ファンＦｓに接続され、屋外Ｏから屋内Ｒに外気ＯＡを供給するように構成されている。この給気路１０は、空気の流れ方向において、屋外Ｏ側の外気取入口１１から全熱交換部３０の給気側領域３１、除湿部４０、顕熱交換部５０の給気側領域５１を順に通り、屋内Ｒ側の給気口１２に至る風路として構成されている。 The air supply passage 10 is connected to an air supply fan Fs and is configured to supply outside air OA from the outdoor O to the indoor R. In the air flow direction, the air supply passage 10 extends from the outside air intake port 11 on the outdoor O side to the air supply side region 31 of the total heat exchange unit 30, the dehumidification unit 40, and the air supply side region 51 of the manifest heat exchange unit 50. It passes in order and is configured as an air passage leading to the air supply port 12 on the indoor R side.

前記排気路２０は、排気ファンＦｅに接続され、屋内Ｒから屋外Ｏに屋内空気ＲＡを排出するように構成されている。この排気路２０は、空気の流れ方向において、屋内Ｒ側の屋内空気取入口２１から顕熱交換部５０の排気側領域５２、全熱交換部３０の排気側領域３２を順に通り、屋外Ｏ側の排気口２２に至る風路として構成されている。 The exhaust passage 20 is connected to an exhaust fan Fe and is configured to discharge indoor air RA from indoor R to outdoor O. In the air flow direction, the exhaust passage 20 passes through the indoor air intake 21 on the indoor R side, the exhaust side region 52 of the sensible heat exchange section 50, and the exhaust side region 32 of the total heat exchange section 30 in order, and is on the outdoor O side. It is configured as an air passage leading to the exhaust port 22 of.

前記全熱交換部３０は、給気側領域３１を流れる空気として給気路１０を流れる空気で冷媒自然循環式の顕熱交換部５０による顕熱交換が行われる前の空気と、排気側領域３２を流れる空気として排気路２０を流れる空気で冷媒自然循環式の顕熱交換部５０による顕熱交換が行われた後の空気との間で全熱交換（顕熱交換及び潜熱交換）を行うように構成されている。 The total heat exchange unit 30 is the air flowing through the air supply passage 10 as the air flowing through the air supply side region 31 and the air before the actual heat exchange by the refrigerant natural circulation type demonstrative heat exchange unit 50 and the exhaust side region. Total heat exchange (explicit heat exchange and latent heat exchange) is performed between the air flowing through the exhaust passage 20 as the air flowing through the 32 and the air flowing through the exhaust passage 20 after the actual heat exchange is performed by the refrigerant natural circulation type sensible heat exchange unit 50. It is configured as follows.

このとき、排気路２０を流れる空気で冷媒自然循環式の顕熱交換部５０による顕熱交換（熱回収）が行われた後の空気（屋内空気ＲＡ）は、外気ＯＡに比べて低温且つ低湿の空気であるので、当該空気との全熱交換部３０での全熱交換により、給気路１０を流れる空気（外気ＯＡ）に対して第１段目の処理として冷却と除湿とが行われる。 At this time, the air (indoor air RA) after the sensible heat exchange (heat recovery) is performed by the sensible heat exchange unit 50 of the refrigerant natural circulation type with the air flowing through the exhaust passage 20 has a lower temperature and lower humidity than the outside air OA. By exchanging total heat with the air in the total heat exchange unit 30, the air flowing through the air supply path 10 (outside air OA) is cooled and dehumidified as the first stage treatment. ..

全熱交換部３０としては、各種の方式のものを採用することができるが、本実施形態では、アルミニウム製のハニカム等からなる円盤状の通気性蓄熱体３３を給気側領域３１と排気側領域３２との間で駆動手段（図示省略）にて回転駆動させることで、給気側領域３１を流れる空気と排気側領域３２を流れる空気との間で全熱交換を行う回転式のものを採用している。 Various types of total heat exchange units 30 can be adopted, but in the present embodiment, a disk-shaped breathable heat storage body 33 made of an aluminum honeycomb or the like is provided on the air supply side region 31 and the exhaust side. A rotary type that exchanges total heat between the air flowing through the air supply side region 31 and the air flowing through the exhaust side region 32 by rotationally driving the region 32 by a driving means (not shown). It is adopted.

前記除湿部４０は、給気路１０を流れる空気で全熱交換部３０の下流側の全熱交換後の空気を除湿するように構成されている。この除湿部４０も各種の方式のものを採用することができるが、本実施形態では、冷水等の熱搬送媒体の供給を受けて空気を冷却する冷却器からなり、給気路１０を流れる空気を露点温度以下まで冷却して除湿する冷却除湿式の除湿部として構成されている。この除湿部４０により、給気路１０を流れる空気に対して第２段目の処理として冷却と除湿とが行われる。 The dehumidifying section 40 is configured to dehumidify the air after total heat exchange on the downstream side of the total heat exchange section 30 with the air flowing through the air supply passage 10. The dehumidifying unit 40 can also be of various types, but in the present embodiment, the dehumidifying unit 40 is composed of a cooler that cools the air by being supplied with a heat transport medium such as cold water, and the air flowing through the air supply path 10. It is configured as a cooling dehumidifying part that cools and dehumidifies the air to below the dew point temperature. The dehumidifying section 40 cools and dehumidifies the air flowing through the air supply passage 10 as a second-stage treatment.

前記冷媒自然循環式の顕熱交換部５０は、冷媒ｒの液状態とガス状態とでの密度差及び冷媒ｒの圧力差を利用して冷媒ｒを自然循環させることで、冷媒ｒを介して給気側領域５１を流れる空気と排気側領域５２を流れる空気との間で顕熱交換を行うように構成されている。 The refrigerant natural circulation type sensible heat exchange unit 50 naturally circulates the refrigerant r by utilizing the density difference between the liquid state and the gas state of the refrigerant r and the pressure difference of the refrigerant r, thereby passing through the refrigerant r. It is configured to exchange sensible heat between the air flowing through the air supply side region 51 and the air flowing through the exhaust side region 52.

顕熱交換部５０は、給気側領域５１に配設される給気側熱交換部５３と、排気側領域５２に配設される排気側熱交換部５４と、給気側熱交換部５３と排気側熱交換部５４との間で冷媒ｒを一方向に循環させる冷媒循環路５５とから構成されている。 The sensible heat exchange unit 50 includes an air supply side heat exchange unit 53 arranged in the air supply side region 51, an exhaust side heat exchange unit 54 arranged in the exhaust side region 52, and an air supply side heat exchange unit 53. It is composed of a refrigerant circulation path 55 that circulates the refrigerant r in one direction between the exhaust side heat exchange unit 54 and the exhaust side heat exchange unit 54.

これらの給気側熱交換部５３と排気側熱交換部５４と冷媒循環路５５は、例えば、給気側熱交換部５３が排気側熱交換部５４よりも上方に位置する配置関係とされ、低位側の排気側熱交換部５４で蒸発したガス状態の冷媒ｒが冷媒循環路５５を通じて自然に上方に移動して高位側の給気側熱交換部５３に流入し、高位側の給気側熱交換部５３で凝縮した液状態の冷媒ｒが冷媒循環路５５を通じて自然に下方に移動して低位側の排気側熱交換部５４に流入するように構成されている。 The air supply side heat exchange unit 53, the exhaust side heat exchange unit 54, and the refrigerant circulation path 55 are arranged so that, for example, the air supply side heat exchange unit 53 is located above the exhaust side heat exchange unit 54. The gas-state refrigerant r evaporated in the lower exhaust side heat exchange section 54 naturally moves upward through the refrigerant circulation path 55 and flows into the higher side air supply side heat exchange section 53, and flows into the higher side air supply side heat exchange section 53. The liquid refrigerant r condensed in the heat exchange section 53 is configured to naturally move downward through the refrigerant circulation path 55 and flow into the lower exhaust side heat exchange section 54.

また、この冷媒自然循環式の顕熱交換部５０は、給気側領域５１を流れる空気として、給気路１０を流れる空気で全熱交換部３０による全熱交換と除湿部４０による除湿が行われた後の空気と、排気側領域５２を流れる空気として、排気路２０を流れる空気で全熱交換部３０による全熱交換が行われる前の空気との間で顕熱交換を行うように構成されている。 Further, in the refrigerant natural circulation type sensible heat exchange unit 50, as the air flowing through the air supply side region 51, the total heat exchange by the total heat exchange unit 30 and the dehumidification by the dehumidifying unit 40 are performed by the air flowing through the air supply passage 10. As the air flowing through the exhaust side region 52, the air after being broken and the air flowing through the exhaust passage 20 are configured to perform microscopic heat exchange between the air before the total heat exchange by the total heat exchange unit 30 is performed. Has been done.

このとき、排気路２０を流れる空気で全熱交換部３０による全熱交換が行われる前の空気（屋内空気ＲＡ）は、給気路１０を流れる空気で除湿部４０による冷却除湿後の空気に比べて高温の空気である。そのため、冷媒自然循環式の顕熱交換部５０の排気側熱交換部５４が熱回収器となり、液状態の冷媒ｒを蒸発させる形態で排気路２０を流れる空気で全熱交換部３０による全熱交換が行われる前の空気の顕熱（温熱）が回収される。更に、顕熱交換部５０の給気側熱交換部５３が再熱器となり、ガス状態の冷媒ｒを凝縮させる形態で給気路１０を流れる空気で除湿部４０による冷却除湿後の空気が再熱される。 At this time, the air (indoor air RA) before the total heat exchange by the total heat exchange unit 30 with the air flowing through the exhaust passage 20 becomes the air after cooling and dehumidification by the dehumidifying unit 40 with the air flowing through the air supply passage 10. It is relatively hot air. Therefore, the exhaust side heat exchange unit 54 of the refrigerant natural circulation type sensible heat exchange unit 50 serves as a heat collector, and the total heat generated by the total heat exchange unit 30 is generated by the air flowing through the exhaust passage 20 in the form of evaporating the liquid refrigerant r. The actual heat (heat) of the air before the exchange is recovered. Further, the air supply side heat exchange section 53 of the sensible heat exchange section 50 serves as a reheater, and the air flowing through the air supply path 10 in the form of condensing the gas-state refrigerant r re-cools and dehumidifies the air by the dehumidifying section 40. Be heated.

そして、この空調装置１００は、給気路１０による屋内Ｒへの給気温度を設定給気温度に維持するように構成されている。そのため、この空調装置１００には、給気路１０による屋内Ｒへの給気温度を検出する給気温度検出手段６０と、冷媒自然循環式の顕熱交換部５０による顕熱交換量を調整する顕熱交換量調整手段７０と、給気温度検出手段６０による検出結果に基づいて顕熱交換量調整手段７０を制御して給気路１０による屋内Ｒへの給気温度を設定給気温度に調整する制御部（制御手段の一例）８０が備えられている。 The air conditioner 100 is configured to maintain the air supply temperature to the indoor R by the air supply path 10 at the set air supply temperature. Therefore, the air conditioner 100 adjusts the amount of sensible heat exchanged by the air supply temperature detecting means 60 that detects the air supply temperature to the indoor R by the air supply passage 10 and the sensible heat exchange unit 50 of the refrigerant natural circulation type. The sensible heat exchange amount adjusting means 70 and the sensible heat exchange amount adjusting means 70 are controlled based on the detection results by the supply air temperature detecting means 60 to set the supply air temperature to the indoor R by the air supply path 10 to the set supply air temperature. A control unit (an example of control means) 80 for adjusting is provided.

前記給気温度検出手段６０は、給気路１０における顕熱交換部５０の下流側で給気口１２の直上流側の箇所に設けられた温度センサ等からなり、当該箇所における空気の温度、すなわち、屋内Ｒへの給気温度を検出するように構成されている。 The air supply temperature detecting means 60 includes a temperature sensor or the like provided on the downstream side of the sensible heat exchange unit 50 in the air supply path 10 and directly upstream of the air supply port 12, and the air temperature at the location. That is, it is configured to detect the air supply temperature to the indoor R.

前記顕熱交換量調整手段７０は、冷媒循環路５５を流れる冷媒ｒの流量を調整する冷媒流量調整部７１からなり、制御部８０からの制御指令に応じて冷媒循環路５５を流れる冷媒ｒの流量を調整することで、顕熱交換部５０での顕熱交換量を調整するように構成されている。 The visible heat exchange amount adjusting means 70 includes a refrigerant flow rate adjusting unit 71 that adjusts the flow rate of the refrigerant r flowing through the refrigerant circulation path 55, and the refrigerant r flowing through the refrigerant circulation path 55 in response to a control command from the control unit 80. By adjusting the flow rate, the amount of sensible heat exchange in the sensible heat exchange unit 50 is adjusted.

この冷媒流量調整部７１は、例えば、冷媒循環路５５における給気側熱交換部５３から排気側熱交換部５４へ冷媒ｒが流れる区間に電子膨張弁等を介装して構成され、制御部８０からの制御指令に応じた弁開度の調整により冷媒循環路５５を流れる冷媒ｒの流量を調整する。 The refrigerant flow rate adjusting unit 71 is configured by, for example, interposing an electronic expansion valve or the like in a section where the refrigerant r flows from the air supply side heat exchange unit 53 to the exhaust side heat exchange unit 54 in the refrigerant circulation path 55, and is a control unit. The flow rate of the refrigerant r flowing through the refrigerant circulation path 55 is adjusted by adjusting the valve opening degree according to the control command from 80.

前記制御部８０は、給気温度検出手段６０から検出温度を通信等で取得し、その検出温度に基づき、給気路１０による屋内Ｒへの給気温度が設定給気温度となるように冷媒流量調整部７１に対して冷媒ｒの流量を調整する制御指令を出力することで、冷媒流量調整部７１を制御し、顕熱交換部５０での顕熱交換量を調整して給気路１０による屋内Ｒへの給気温度を設定給気温度に維持する。 The control unit 80 acquires the detected temperature from the supply air temperature detecting means 60 by communication or the like, and based on the detected temperature, the refrigerant so that the supply air temperature to the indoor R by the supply air passage 10 becomes the set supply air temperature. By outputting a control command for adjusting the flow rate of the refrigerant r to the flow rate adjusting unit 71, the refrigerant flow rate adjusting unit 71 is controlled, and the amount of exposed heat exchanged by the exposed heat exchange unit 50 is adjusted to adjust the air supply passage 10. Maintains the air supply temperature to the indoor R at the set air supply temperature.

例えば、この制御部８０は、給気温度検出手段６０から取得した検出温度と予め設定された設定給気温度とを比較し、検出温度が設定給気温度よりも低い場合は、顕熱交換部５０での顕熱交換量を増大させるべく冷媒ｒの流量を増大させる制御指令を冷媒流量調整部７１に出力し、他方、検出温度が設定給気温度よりも高い場合は、顕熱交換部５０での顕熱交換量を減少させるべく冷媒ｒの流量を減少させる制御指令を冷媒流量調整部７１に出力することで、給気路１０による屋内Ｒへの給気温度を設定給気温度に維持する。 For example, the control unit 80 compares the detection temperature acquired from the supply air temperature detecting means 60 with the preset set supply air temperature, and if the detected temperature is lower than the set supply air temperature, the sensible heat exchange unit 80. A control command for increasing the flow rate of the refrigerant r to increase the sensible heat exchange amount at 50 is output to the refrigerant flow rate adjusting unit 71, while when the detected temperature is higher than the set supply air temperature, the sensible heat exchange unit 50 By outputting a control command to reduce the flow rate of the refrigerant r to reduce the amount of sensible heat exchange in, the air supply temperature to the indoor R by the air supply path 10 is maintained at the set supply air temperature. To do.

このように構成された空調装置１００は、全熱交換部３０と顕熱交換部５０の双方における給排気間での熱融通により屋内Ｒの空調を効率的に行え、更に、制御部８０による冷媒流量調整部７１の制御により、屋内Ｒへの給気量と屋内Ｒからの排気量を設定量に維持しながら屋内Ｒへの給気温度を設定給気温度に維持し、屋内Ｒの空調を効果的に行える。 The air conditioner 100 configured in this way can efficiently air-condition the indoor R by heat interchange between the supply and exhaust of both the total heat exchange unit 30 and the sensible heat exchange unit 50, and further, the refrigerant by the control unit 80. By controlling the flow rate adjusting unit 71, the air supply temperature to the indoor R is maintained at the set air supply temperature while maintaining the air supply amount to the indoor R and the exhaust amount from the indoor R at the set amount, and the air conditioning of the indoor R is performed. It can be done effectively.

〔第２実施形態〕
前述の第１実施形態では、冷媒自然循環式の顕熱交換部５０の顕熱交換量を調整する顕熱交換量調整手段７０が、顕熱交換部５０の冷媒循環路５５を流れる冷媒ｒの流量を調整するものである場合を例に示したが、例えば、顕熱交換部５０の排気側熱交換部５４で顕熱交換させる空気の風量を調整するものであってもよい。 [Second Embodiment]
In the first embodiment described above, the sensible heat exchange amount adjusting means 70 for adjusting the sensible heat exchange amount of the refrigerant natural circulation type sensible heat exchange unit 50 is the refrigerant r flowing through the refrigerant circulation path 55 of the sensible heat exchange unit 50. Although the case where the flow rate is adjusted is shown as an example, for example, the air volume of the air to be exchanged by the exhaust side heat exchange unit 54 of the sensible heat exchange unit 50 may be adjusted.

この第２実施形態では、図２に示すように、屋内Ｒから排気する排気路２０として、冷媒自然循環式の顕熱交換部５０による顕熱交換を行って排気する第一排気路２０Ａと、冷媒自然循環式の顕熱交換部５０による顕熱交換を行わずに排気する第二排気路２０Ｂとが備えられている。 In this second embodiment, as shown in FIG. 2, as the exhaust passage 20 for exhausting from the indoor R, the first exhaust passage 20A for exhausting by exchanging the actual heat by the refrigerant natural circulation type explicit heat exchange unit 50 is used. It is provided with a second exhaust passage 20B for exhausting the refrigerant without performing the manifest heat exchange by the refrigerant natural circulation type manifest heat exchange unit 50.

前記第一排気路２０Ａは、空気の流れ方向において、屋内空気取入口２１から顕熱交換部５０の手前側の分岐部２３に至る第一区間Ａ１と、分岐部２３から顕熱交換部５０の排気側領域５２を通って合流部２４に至る第二区間Ａ２と、合流部２４から排気口２２に至る第三区間Ａ３から構成されている。 The first exhaust passage 20A is a first section A1 from the indoor air intake 21 to the branch portion 23 on the front side of the sensible heat exchange section 50 in the air flow direction, and the branch section 23 to the sensible heat exchange section 50. It is composed of a second section A2 that reaches the confluence portion 24 through the exhaust side region 52 and a third section A3 that reaches the confluence portion 24 from the confluence portion 24.

他方、前記第二排気路２０Ｂは、空気の流れ方向において、第一区間Ａ１と、分岐部２３から顕熱交換部５０の排気側領域５２を迂回して合流部２４に至るバイパス区間Ａｂと、第三区間Ａ３から構成されている。 On the other hand, the second exhaust passage 20B includes a first section A1 and a bypass section Ab from the branch portion 23 to the confluence portion 24 by bypassing the exhaust side region 52 of the sensible heat exchange portion 50 in the air flow direction. It is composed of a third section A3.

また、顕熱交換量調整手段７０が、排気路２０にて排気する空気のうち、第一排気路２０Ａにて排気する空気と、第二排気路２０Ｂにて排気する空気との風量比を調整する排気風量比調整部７２からなり、制御部８０からの制御指令に応じて第一排気路２０Ａにて排気する空気と、第二排気路２０Ｂにて排気する空気との風量比を調整して、排気路２０にて排気する空気の全体風量（排気量）を維持しながら第一排気路２０Ａにて排気する空気の風量を調整することで、顕熱交換部５０での顕熱交換量を調整するように構成されている。 Further, the sensible heat exchange amount adjusting means 70 adjusts the air volume ratio between the air exhausted in the first exhaust passage 20A and the air exhausted in the second exhaust passage 20B among the air exhausted in the exhaust passage 20. It is composed of an exhaust air volume ratio adjusting unit 72, and adjusts the air volume ratio between the air exhausted in the first exhaust passage 20A and the air exhausted in the second exhaust passage 20B in response to a control command from the control unit 80. By adjusting the air volume of the air exhausted in the first exhaust passage 20A while maintaining the total air volume (exhaust volume) of the air exhausted in the exhaust passage 20, the apparent heat exchange amount in the microheat exchange unit 50 can be increased. It is configured to adjust.

前記排気風量比調整部７２は、第二排気路２０Ｂのバイパス区間Ａｂに介装された風量調整ダンパ等からなり、当該バイパス区間Ａｂの通風面積を調整することで、第一排気路２０Ａを流れる空気の風量と第二排気路２０Ｂを流れる空気の風量の比を調整するように構成されている。 The exhaust air volume ratio adjusting unit 72 includes an air volume adjusting damper or the like interposed in the bypass section Ab of the second exhaust passage 20B, and flows through the first exhaust passage 20A by adjusting the ventilation area of the bypass section Ab. It is configured to adjust the ratio of the air volume of air to the air volume of air flowing through the second exhaust passage 20B.

前記制御部８０は、給気温度検出手段６０から検出温度を通信等で取得し、その検出温度に基づき、給気路１０による屋内Ｒへの給気温度が設定給気温度となるように排気風量比調整部７２に対して排気風量比を調整する制御指令を出力することで、排気風量比調整部７２を制御し、顕熱交換部５０での顕熱交換量を調整して給気路１０による屋内Ｒへの給気温度を設定給気温度に維持する。 The control unit 80 acquires the detected temperature from the supply air temperature detecting means 60 by communication or the like, and exhausts the temperature so that the supply air temperature to the indoor R by the supply air passage 10 becomes the set supply air temperature based on the detection temperature. By outputting a control command for adjusting the exhaust air volume ratio to the air volume ratio adjusting unit 72, the exhaust air volume ratio adjusting unit 72 is controlled, and the exposed heat exchange amount in the exposed heat exchange unit 50 is adjusted to adjust the air supply passage. The air supply temperature to the indoor R according to 10 is maintained at the set air supply temperature.

例えば、この制御部８０は、給気温度検出手段６０から取得した検出温度と予め設定された設定給気温度とを比較し、検出温度が設定給気温度よりも低い場合は、顕熱交換部５０での顕熱交換量を増大させるべく第一排気路２０Ａにて排気する空気の風量を増大させる制御指令を排気風量比調整部７２に出力し、他方、検出温度が設定給気温度よりも高い場合は、顕熱交換部５０での顕熱交換量を減少させるべく第一排気路２０Ａにて排気する空気の風量を減少させる制御指令を排気風量比調整部７２に出力することで、給気路１０による屋内Ｒへの給気温度を設定給気温度に維持する。 For example, the control unit 80 compares the detection temperature acquired from the supply air temperature detecting means 60 with the preset set supply air temperature, and if the detection temperature is lower than the set supply air temperature, the sensible heat exchange unit A control command for increasing the air volume of the air exhausted in the first exhaust passage 20A in order to increase the apparent heat exchange amount at 50 is output to the exhaust air volume ratio adjusting unit 72, while the detected temperature is higher than the set supply air temperature. If it is high, a control command for reducing the air volume of the air exhausted in the first exhaust passage 20A is output to the exhaust air volume ratio adjusting unit 72 in order to reduce the apparent heat exchange amount in the visible heat exchange unit 50. The air supply temperature to the indoor R by the air passage 10 is maintained at the set air supply temperature.

このように構成された空調装置１００は、全熱交換部３０と顕熱交換部５０の双方における給排気間での熱融通により屋内Ｒの空調を効率的に行え、更に、制御部８０による排気風量比調整部７２の制御により、屋内Ｒへの給気量と屋内Ｒからの排気量を設定量に維持しながら屋内Ｒへの給気温度を設定給気温度に維持して、屋内Ｒの空調を効果的に行える。 The air conditioner 100 configured in this way can efficiently air-condition the indoor R by heat interchange between the supply and exhaust of both the total heat exchange unit 30 and the sensible heat exchange unit 50, and further, the exhaust by the control unit 80. By controlling the air volume ratio adjusting unit 72, the air supply temperature to the indoor R is maintained at the set air supply temperature while maintaining the air supply amount to the indoor R and the exhaust amount from the indoor R at the set amount, and the indoor R is maintained. Air conditioning can be done effectively.

なお、その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。 Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

〔別実施形態〕
（１）顕熱交換量調整手段７０は、前述の各実施形態で示した冷媒流量調整部７１や排気風量比調整部７２に限らず、冷媒自然循環式の顕熱交換部５０での顕熱交換量を調整自在な各種の構成を採用することができる。 [Another Embodiment]
(1) The sensible heat exchange amount adjusting means 70 is not limited to the refrigerant flow rate adjusting unit 71 and the exhaust air volume ratio adjusting unit 72 shown in each of the above-described embodiments, but the sensible heat in the refrigerant natural circulation type sensible heat exchange unit 50. Various configurations can be adopted in which the exchange amount can be adjusted.

（２）前述の各実施形態では、全熱交換部３０や除湿部４０が付設されている場合を例に示したが、全熱交換部３０や除湿部４０を付設するか否かは、空調装置１００の設置目的や設置環境等に応じて適宜に選択することができる。 (2) In each of the above-described embodiments, the case where the total heat exchange unit 30 and the dehumidifying unit 40 are attached is shown as an example, but whether or not the total heat exchange unit 30 and the dehumidifying unit 40 are attached depends on air conditioning. It can be appropriately selected according to the installation purpose of the device 100, the installation environment, and the like.

（３）前述の各実施形態の改良として、給気路１０における顕熱交換部５０の下流側に加熱部や冷却部を追加的に配置し、顕熱交換部５０による顕熱交換量の調整だけでは屋内Ｒへの給気温度が設定給気温度から外れる場合に、当該加熱部や冷却部を一時的に稼動させて屋内Ｒへの給気温度を設定給気温度に維持するようにしてもよい。 (3) As an improvement of each of the above-described embodiments, a heating section and a cooling section are additionally arranged on the downstream side of the sensible heat exchange section 50 in the air supply passage 10, and the sensible heat exchange amount is adjusted by the sensible heat exchange section 50. When the air supply temperature to the indoor R deviates from the set air supply temperature, the heating unit and the cooling unit are temporarily operated to maintain the air supply temperature to the indoor R at the set air supply temperature. May be good.

（４）前述の各実施形態では、除湿部４０として、給気路１０を流れる空気を露点温度以下まで冷却して除湿する冷却除湿式の除湿部を例に示したが、例えば、吸着材や高分子収着材等を備え、給気路１０を流れる空気から水分を吸着し、排気路２０を流れる空気に水分を放出する除湿ロータ等の吸着除湿式の除湿部等であってもよい。
この場合、冷媒自然循環式の顕熱交換部５０の排気側熱交換部５４が熱回収器、給気側熱交換部５３が冷却器となり、排気路２０を流れる空気から冷熱を回収し、給気路１０を流れる空気で吸着除湿式の除湿部にて吸着除湿後の高温の空気（吸着熱で高温化した空気）を冷却することができる。 (4) In each of the above-described embodiments, as the dehumidifying section 40, a cooling dehumidifying section that cools the air flowing through the air supply passage 10 to a dew point temperature or lower to dehumidify is shown as an example. It may be an adsorption / dehumidifying dehumidifying section such as a dehumidifying rotor provided with a polymer sorbent or the like, adsorbing moisture from the air flowing through the air supply passage 10, and releasing the moisture into the air flowing through the exhaust passage 20.
In this case, the exhaust side heat exchange unit 54 of the refrigerant natural circulation type sensible heat exchange unit 50 serves as a heat recovery unit, and the air supply side heat exchange unit 53 serves as a cooler, recovering cold heat from the air flowing through the exhaust passage 20 and supplying it. The high-temperature air (air heated by the heat of adsorption) after the adsorption and dehumidification can be cooled by the dehumidifying section of the adsorption and dehumidification with the air flowing through the air passage 10.

１０給気路
２０排気路
２０Ａ第一排気路
２０Ｂ第二排気路
３０全熱交換部
４０除湿部
５０冷媒自然循環式の顕熱交換部
６０給気温度検出手段
７０顕熱交換量調整手段
７１冷媒流量調整部
７２排気風量比調整部
８０制御部（制御手段）
１００空調装置
Ｒ屋内（空調対象空間）
ｒ冷媒

10 Air supply passage 20 Exhaust passage 20A First exhaust passage 20B Second exhaust passage 30 Total heat exchange section 40 Dehumidifying section 50 Refrigerant natural circulation type sensible heat exchange section 60 Supply air temperature detecting means 70 Specified heat exchange amount adjusting means 71 Refrigerant Flow rate adjusting unit 72 Exhaust air volume ratio adjusting unit 80 Control unit (control means)
100 Air conditioner R Indoor (space subject to air conditioning)
r Refrigerant

Claims

The air supply path that supplies air to the air-conditioned space,
The exhaust path that exhausts from the air-conditioned space and
By naturally circulating the refrigerant by utilizing the density difference between the liquid state and the gas state of the refrigerant and the pressure difference of the refrigerant, between the air flowing through the air supply passage and the air flowing through the exhaust passage through the refrigerant. An air conditioner equipped with a natural circulation type refrigerant heat exchange unit that exchanges heat.
A supply air temperature detecting means for detecting the supply air temperature to the air-conditioned space by the air supply path, and
A sensible heat exchange amount adjusting means for adjusting the sensible heat exchange amount by the refrigerant natural circulation type sensible heat exchange unit, and
A control means for controlling the actual heat exchange amount adjusting means based on the detection result by the supply air temperature detecting means to adjust the supply air temperature to the air-conditioned space by the supply passage to the set supply air temperature.
A dehumidifying section is provided to dehumidify the air flowing through the air supply path before the sensible heat exchange is performed by the refrigerant natural circulation type sensible heat exchange section.
The dehumidifying unit is a cooling dehumidifying and wet dehumidifying unit that dehumidifies and cools the air flowing through the air supply passage to a temperature below the dew point temperature.
The refrigerant natural circulation type sensible heat exchange unit recovers the sensible heat of the air in the air-conditioned space flowing through the exhaust passage, and the air flowing through the air supply passage is cooled and dehumidified by the cooling and dehumidifying dehumidifying unit. It is configured to reheat a
In the exhaust passage, a first exhaust passage for exhausting by performing a sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit and an exhaust without performing sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit. It is equipped with a second exhaust passage to
The exhaust air amount adjusting means adjusts the air volume ratio between the air exhausted in the first exhaust passage and the air exhausted in the second exhaust passage among the air exhausted in the exhaust passage. It consists of a ratio adjustment unit
The control means sets the air supply temperature to the air-conditioned space by the air supply passage by controlling the exhaust air volume ratio adjusting unit based on the detection result by the supply air temperature detecting means and adjusting the air volume ratio. An air conditioner that adjusts to the supply air temperature .

The air supply path that supplies air to the air-conditioned space,
The exhaust path that exhausts from the air-conditioned space and
By naturally circulating the refrigerant by utilizing the density difference between the liquid state and the gas state of the refrigerant and the pressure difference of the refrigerant, between the air flowing through the air supply passage and the air flowing through the exhaust passage through the refrigerant. An air conditioner equipped with a natural circulation type refrigerant heat exchange unit that exchanges heat.
A supply air temperature detecting means for detecting the supply air temperature to the air-conditioned space by the air supply path, and
A sensible heat exchange amount adjusting means for adjusting the sensible heat exchange amount by the refrigerant natural circulation type sensible heat exchange unit, and
A control means for controlling the actual heat exchange amount adjusting means based on the detection result by the supply air temperature detecting means to adjust the supply air temperature to the air-conditioned space by the supply passage to the set supply air temperature.
A dehumidifying section is provided to dehumidify the air flowing through the air supply path before the sensible heat exchange is performed by the refrigerant natural circulation type sensible heat exchange section.
The dehumidifying unit is an adsorption dehumidifying dehumidifying unit that adsorbs moisture from the air flowing through the air supply passage and releases the moisture to the air flowing through the exhaust passage.
The refrigerant natural circulation type sensible heat exchange unit recovers the sensible heat of the air in the air-conditioned space flowing through the exhaust passage, and the air flowing through the air supply passage is the air after adsorption and dehumidification by the adsorption dehumidification and dehumidification portion. It is configured to cool a
In the exhaust passage, a first exhaust passage for exhausting by performing a sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit and an exhaust without performing sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit. It is equipped with a second exhaust passage to
The exhaust air amount adjusting means adjusts the air volume ratio between the air exhausted in the first exhaust passage and the air exhausted in the second exhaust passage among the air exhausted in the exhaust passage. It consists of a ratio adjustment unit
The control means sets the air supply temperature to the air-conditioned space by the air supply passage by controlling the exhaust air volume ratio adjusting unit based on the detection result by the supply air temperature detecting means and adjusting the air volume ratio. An air conditioner that adjusts to the supply air temperature .

The total heat exchange unit that exchanges total heat between the air flowing through the air supply passage and the air flowing through the exhaust passage before the actual heat exchange by the refrigerant natural circulation type demonstrative heat exchange unit is performed. Be prepared ,
The first exhaust passage is configured to perform sensible heat exchange by the refrigerant natural circulation type sensible heat exchange unit and further perform total heat exchange by the total heat exchange unit to exhaust the exhaust gas.
Claim 1 or 2 is configured such that the second exhaust passage is exhausted by exchanging total heat by the total heat exchange unit without performing exponential heat exchange by the natural circulation type sensation heat exchange unit of the refrigerant. The described air conditioner.