JPH0842938A - Dehumidifying device and method of air conditioner - Google Patents
Dehumidifying device and method of air conditionerInfo
- Publication number
- JPH0842938A JPH0842938A JP7136815A JP13681595A JPH0842938A JP H0842938 A JPH0842938 A JP H0842938A JP 7136815 A JP7136815 A JP 7136815A JP 13681595 A JP13681595 A JP 13681595A JP H0842938 A JPH0842938 A JP H0842938A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- refrigerant
- outdoor
- indoor
- cooling mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気調和機に関し、特
に空気調和機の除湿動作中に騒音の原因になる室外ファ
ンを駆動せず、室内ファンのみを駆動して除湿動作を行
うようにした空気調和機の除湿装置及び除湿方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an indoor fan that does not drive an outdoor fan that causes noise during the dehumidifying operation of the air conditioner, but performs only the dehumidifying operation. The present invention relates to a dehumidifying device and a dehumidifying method for an air conditioner.
【０００２】[0002]
【従来の技術】一般的に、空気調和機の動作はサイクル
によって二つに区分される。一番目は温度及び湿度が高
く蒸し暑い夏期に主に使用する冷房モードであり、二番
目は温度が低く湿度の高い梅雨期に、室内温度はそのま
ま維持して湿度のみを低下させるように動作する除湿モ
ードである。2. Description of the Related Art Generally, the operation of an air conditioner is divided into two according to the cycle. The first is a cooling mode that is mainly used in the hot and humid summers when it is hot and humid, and the second is the dehumidifying operation that keeps the room temperature and reduces only the humidity during the rainy season when the temperature is low and the humidity is high. Mode.
【０００３】図５は、前記２つのモードのうち、冷房モ
ード時の冷媒の流れを示す図面で、これに図示したよう
に圧縮機１が駆動されると電子バルブ８はオフし、これ
により３方バルブ７はターンオンされ、冷媒の流れは圧
縮機１と室外熱交換器２を順次に通過した後、第１減圧
装置３で減圧される。この時、室外熱交換器２は凝縮器
として動作し、前記のようにして減圧された冷媒は再熱
熱交換器４及び３方バルブ７を順次に通過して室内熱交
換器５へ流入する。室内熱交換器５へ流入した冷媒は室
内空気との間で熱交換した後、圧縮機１へ還流する。こ
の時、再熱熱交換器４及び室内熱交換器５は蒸発器とし
て動作するようになる。FIG. 5 is a drawing showing the flow of the refrigerant in the cooling mode of the above two modes. As shown in FIG. 5, when the compressor 1 is driven, the electronic valve 8 is turned off, so that 3 The one-way valve 7 is turned on, the flow of the refrigerant is sequentially passed through the compressor 1 and the outdoor heat exchanger 2, and then is depressurized by the first depressurizing device 3. At this time, the outdoor heat exchanger 2 operates as a condenser, and the refrigerant decompressed as described above sequentially passes through the reheat heat exchanger 4 and the three-way valve 7 and flows into the indoor heat exchanger 5. . The refrigerant flowing into the indoor heat exchanger 5 exchanges heat with the indoor air and then returns to the compressor 1. At this time, the reheat heat exchanger 4 and the indoor heat exchanger 5 operate as an evaporator.
【０００４】一方、除湿モード時における冷媒の流れ
は、図６に図示したように、圧縮機１がオンすると、電
子バルブ８はターンオンされ、３方バルブ７はオフして
圧縮機１から吐出された冷媒は室外熱交換器２を通過し
て室外空気との間で熱交換をした後、前記電子バルブ８
を通過して再熱熱交換器４に流入する。この時、室外熱
交換器２は凝縮器として動作するようになり、再熱熱交
換器４も凝縮器として動作するようになる。On the other hand, as shown in FIG. 6, when the compressor 1 is turned on, the electronic valve 8 is turned on, the three-way valve 7 is turned off, and the refrigerant flow in the dehumidifying mode is discharged from the compressor 1 as shown in FIG. The refrigerant passes through the outdoor heat exchanger 2 to exchange heat with the outdoor air, and then the electronic valve 8
To flow into the reheat heat exchanger 4. At this time, the outdoor heat exchanger 2 operates as a condenser, and the reheat heat exchanger 4 also operates as a condenser.
【０００５】そして、再熱熱交換器４から吐出された冷
媒は第２減圧装置６によって減圧された後、３方バルブ
７を経由して室内熱交換器５へ流入する。この後、室内
熱交換器５に流入した冷媒は室内空気との間で熱交換し
た後、圧縮機１へ還流する。この時、室内熱交換器５は
蒸発器として作用して室内ファン１１の駆動により、低
温冷媒と熱交換することによって低温となり湿気が除去
された室内空気は、さらに再熱熱交換器４を通過して流
れる。それによって再熱交換が行われて室内流入空気と
同一の温度の状態になって吐出されることによって室内
空気の除湿が行なわれる。The refrigerant discharged from the reheat heat exchanger 4 is decompressed by the second decompression device 6 and then flows into the indoor heat exchanger 5 via the three-way valve 7. After that, the refrigerant flowing into the indoor heat exchanger 5 exchanges heat with the indoor air and then returns to the compressor 1. At this time, the indoor heat exchanger 5 acts as an evaporator, and by driving the indoor fan 11, the indoor air from which the temperature has become low due to heat exchange with the low temperature refrigerant and moisture has been removed further passes through the reheat heat exchanger 4. Then flow. As a result, reheat exchange is performed, and the indoor air is dehumidified by being discharged at the same temperature as the inflowing air.
【０００６】[0006]
【発明が解決しようとする課題】しかし、このような従
来の空気調和機は、除湿運転モードをとった時、低温多
湿の梅雨期に室内温度を低下させずに、所定の温度を維
持しつつ除湿運転を行うが、この時、冷媒サイクルにお
いては冷媒が室外熱交換器を経由して流れることによっ
て、室外ファンが継続駆動されることになって消費電力
が増加するとともに、連続的な室外ファンの駆動のため
騒音が発生するという問題があった。However, such a conventional air conditioner maintains a predetermined temperature in the dehumidifying operation mode without lowering the indoor temperature during the rainy season when the temperature is high and low. The dehumidifying operation is performed.At this time, in the refrigerant cycle, the refrigerant flows through the outdoor heat exchanger, so that the outdoor fan is continuously driven and the power consumption increases. There was a problem that noise was generated due to the driving of the.
【０００７】一方、室内除湿時に室内ファン６の吐出風
量が少なくなるようにそれを低速で動作させると、室内
熱交換器５に流入する冷媒の蒸発温度をより一層低めて
室内空気との間で熱伝達を促進させるので、室内温度が
低くて湿気が多い場合には、除湿と同時に行なわれる熱
伝達により室内温度が過度に下降するので、目標の温度
と湿度とを同時に満足する快適な室内環境を得ることが
困難であった。On the other hand, when the indoor fan 6 is operated at a low speed during dehumidification so that the amount of air discharged from the indoor fan 6 is reduced, the evaporation temperature of the refrigerant flowing into the indoor heat exchanger 5 is further lowered, and the indoor air is exchanged with the indoor air. Since it promotes heat transfer, when the room temperature is low and the humidity is high, the indoor temperature drops excessively due to heat transfer performed at the same time as dehumidification, so a comfortable indoor environment that satisfies both the target temperature and humidity Was difficult to obtain.
【０００８】本発明の主な目的は、室内空気について適
度の低温低湿の条件を維持しながら騒音を低減させて低
湿運転を行うようにする、空気調和機の除湿装置及び除
湿方法を提供することにある。A main object of the present invention is to provide a dehumidifying device and a dehumidifying method for an air conditioner, which reduce noise and perform low-humidity operation while maintaining moderate low temperature and low humidity conditions for indoor air. It is in.
【０００９】また、本発明の他の目的は、室内の温度を
常に適切な状態に、迅速かつ円滑に到達させることによ
って快適な室内環境を得るようにした空気調和機及びそ
の運転方法を提供することにある。Another object of the present invention is to provide an air conditioner and a method of operating the same, in which a comfortable indoor environment is obtained by making the indoor temperature always reach an appropriate state quickly and smoothly. Especially.
【００１０】[0010]
【課題を解決するための手段】このような本発明の目的
は、冷房時に圧縮機から吐出される冷媒を室外熱交換器
に流入させる一方、除湿時には前記圧縮機から吐出され
る冷媒を再熱熱交換器へ流入させて、除湿時に前記室外
熱交換器へ冷媒が流入することを防止するようにした除
湿冷媒制御手段によって達成される。The object of the present invention is to allow the refrigerant discharged from the compressor during cooling to flow into the outdoor heat exchanger, while reheating the refrigerant discharged from the compressor during dehumidification. This is achieved by a dehumidifying refrigerant control means that allows the refrigerant to flow into the heat exchanger to prevent the refrigerant from flowing into the outdoor heat exchanger during dehumidification.
【００１１】本発明はまた前記目的を達成するために、
圧縮機、室外熱交換器、減圧装置、室内交換器と、室内
ファン及び室外ファンを備えた空気調和機において、減
圧装置と室内熱交換器との間に設置される再熱熱交換器
と、室外熱交換器と再熱熱交換器とを連結するバイパス
と、室外熱交換器から出る冷媒が減圧装置またはバイパ
スのどちらか一方を通過するように調節する３方バルブ
と、再熱熱交換器と室内熱交換器との間に設置される電
子膨脹バルブとを備えることを特徴とする空気調和機、
及び、室内設定温度（Ｔｓ）を所定の高温（Ｔ1 ）及び
所定の低温（Ｔ2 ）（ここでＴ1 ＞Ｔ2 ）と比べて、Ｔ
ｓ＞Ｔ1 である場合には、第１段階の冷房モードを行な
い、Ｔ1 ＞Ｔｓ＞Ｔ2 である場合には、第１段階の冷房
モードに続いて第２段階の冷房モードを行ない、Ｔｓ＜
Ｔ2 である場合には、第１段階及び第２段階の冷房モー
ドに続いて第３段階の冷房モードを行うことを特徴とす
る空気調和機の運転方法を提供する。In order to achieve the above object, the present invention also provides
A compressor, an outdoor heat exchanger, a pressure reducing device, an indoor exchanger, and an air conditioner equipped with an indoor fan and an outdoor fan, a reheat heat exchanger installed between the pressure reducing device and the indoor heat exchanger, A bypass that connects the outdoor heat exchanger and the reheat heat exchanger, a three-way valve that adjusts refrigerant flowing from the outdoor heat exchanger to pass through either the pressure reducing device or the bypass, and the reheat heat exchanger. And an electronic expansion valve installed between the indoor heat exchanger and the air conditioner,
And comparing the indoor set temperature (Ts) with a predetermined high temperature (T 1 ) and a predetermined low temperature (T 2 ) (where T 1 > T 2 )
When s> T 1 , the first-stage cooling mode is performed, and when T 1 >Ts> T 2 , the second-stage cooling mode is performed subsequent to the first-stage cooling mode. Ts <
When it is T 2 , there is provided an operating method of an air conditioner, characterized by performing the cooling mode of the third stage subsequent to the cooling mode of the first stage and the second stage.
【００１２】ここで、第１段階の冷房モードとは、前記
室内ファン及び室外ファンが高速運転をし、３方バルブ
は室外熱交換器から出る冷媒が減圧装置を通って再熱熱
交換器に流れるように作動すると共に、電子膨脹バルブ
が完全に開放している状態であり、第２段階の冷房モー
ドとは、室内ファンが中速または低速運転され、３方バ
ルブは室外熱交換器から出る冷媒がバイパスを通って再
熱熱交換器に流れるように作動し、電子膨脹バルブが減
圧装置として作動している状態であり、第３段階の冷房
モードとは、冷媒を第２段階の冷房モードと同様に流し
ながら、室内ファンは低速運転、室外ファンは低速また
は運転停止とする状態である。Here, in the first-stage cooling mode, the indoor fan and the outdoor fan operate at high speed, and the three-way valve causes the refrigerant discharged from the outdoor heat exchanger to pass through the pressure reducing device to the reheat heat exchanger. The electronic expansion valve is in a fully open state while operating so that the indoor fan is operated at medium speed or low speed in the second stage cooling mode, and the three-way valve exits the outdoor heat exchanger. The refrigerant is operating so as to flow through the bypass to the reheat heat exchanger, and the electronic expansion valve is operating as a decompressor. The third-stage cooling mode is the second-stage cooling mode. The indoor fan is in a low speed operation while the outdoor fan is in a low speed or operation stop while flowing in the same manner as.
【００１３】[0013]
【実施例】以下、本発明の実施例に対し、添附図面を参
照して詳細に説明する。図１及び図２は、本発明の第１
実施例を示す空気調和機のシステム構成図であって、こ
の空気調和機は図示したように圧縮機５１から吐出され
る冷媒を室外熱交換器５２に流入させ、除湿時に前記圧
縮機５１から吐出される冷媒を再熱熱交換器５４に流入
させる除湿冷媒制御部６２と、前記除湿冷媒制御部６２
から導かれる冷媒を室外空気との間で熱交換させる室外
熱交換器５２と、前記室外熱交換器５２において熱交換
した冷媒を減圧させる第１減圧装置５３と、前記第１減
圧装置５３によって減圧した冷媒をさらに室内空気と熱
交換させる再熱熱交換器５４と、前記再熱熱交換器５４
から流出する冷媒を減圧させる第２減圧装置５６と、第
２減圧装置５６から得られる低圧の冷媒を制御部５９の
制御によって案内する３方バルブ５７と、前記３方バル
ブ５７により案内された冷媒を室内空気と熱交換させて
前記圧縮機５１へ還流させる室内熱交換器５５と、前記
室外及び室内熱交換器５２及び５５の温度上昇を防止す
るための室外及び室内ファン６０及び６１とで構成す
る。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show a first embodiment of the present invention.
It is a system block diagram of the air conditioner which shows an Example, Comprising: This air conditioner makes the refrigerant discharged from the compressor 51 flow into the outdoor heat exchanger 52, and discharges it from the compressor 51 at the time of dehumidification. The dehumidifying refrigerant control unit 62 that causes the generated refrigerant to flow into the reheat heat exchanger 54, and the dehumidifying refrigerant control unit 62.
The outdoor heat exchanger 52 for exchanging heat between the refrigerant introduced from the outside and the outdoor air, the first pressure reducing device 53 for reducing the pressure of the refrigerant that has exchanged heat in the outdoor heat exchanger 52, and the pressure reduction by the first pressure reducing device 53. Reheat heat exchanger 54 for further exchanging heat between the formed refrigerant and room air, and said reheat heat exchanger 54
Second pressure reducing device 56 for reducing the pressure of the refrigerant flowing out from the three-way valve 57 for guiding the low-pressure refrigerant obtained from the second pressure reducing device 56 under the control of the controller 59, and the refrigerant guided by the three-way valve 57. And an indoor fan 60 and 61 for preventing the temperature rise of the outdoor and indoor heat exchangers 52 and 55, respectively. To do.
【００１４】図１に図示したように、冷房運転時には圧
縮機５１が駆動されると、除湿冷媒制御部６２と３方バ
ルブ５７がオフする。このような状態で、圧縮機５１か
ら吐出された冷媒は、室外熱交換器５２において室外空
気と熱交換した後、第１減圧装置５３によって減圧され
る。As shown in FIG. 1, when the compressor 51 is driven during the cooling operation, the dehumidifying refrigerant controller 62 and the three-way valve 57 are turned off. In such a state, the refrigerant discharged from the compressor 51 exchanges heat with the outdoor air in the outdoor heat exchanger 52, and then is depressurized by the first depressurizing device 53.
【００１５】この時、室外熱交換器５２は凝縮器として
動作して、前記第１減圧装置５３によって減圧された冷
媒は、再熱熱交換器５４及び３方バルブ５７、更に室内
熱交換器５５を順次に通過した後、前記圧縮機５１に還
流する。また、この時、再熱熱交換器５４及び室内熱交
換器５５は、共に蒸発器として動作する。At this time, the outdoor heat exchanger 52 operates as a condenser, and the refrigerant decompressed by the first decompression device 53 is reheat heat exchanger 54, three-way valve 57, and indoor heat exchanger 55. And then flow back to the compressor 51. At this time, the reheat heat exchanger 54 and the indoor heat exchanger 55 both operate as an evaporator.
【００１６】一方、除湿運転時には、図２に図示したよ
うに、圧縮機５１が駆動されると、除湿冷媒制御部６２
及び３方バルブ５７がターンオンする。これにより、前
記圧縮機５１から吐出される冷媒は、除湿冷媒制御部６
２によって直接に再熱熱交換器５４へ流入する。On the other hand, during the dehumidifying operation, as shown in FIG. 2, when the compressor 51 is driven, the dehumidifying refrigerant control section 62.
And the three-way valve 57 is turned on. As a result, the refrigerant discharged from the compressor 51 is dehumidified refrigerant control unit 6
2 directly flows into the reheat heat exchanger 54.
【００１７】再熱熱交換器５４へ流入した冷媒は室内空
気と熱交換した後に第２減圧装置５６によって減圧さ
れ、３方バルブ５７を経由して室内熱交換器５５に流入
する。この時、再熱熱交換器５４は凝縮器として動作す
ると共に、室内熱交換器５５は蒸発器として動作する。The refrigerant flowing into the reheat heat exchanger 54 is heat-exchanged with the room air and then decompressed by the second decompressor 56, and then flows into the room heat exchanger 55 via the three-way valve 57. At this time, the reheat heat exchanger 54 operates as a condenser, and the indoor heat exchanger 55 operates as an evaporator.
【００１８】そして、室内ファン６１の駆動により室内
熱交換器５５において低温の冷媒と熱交換をすることに
よって低温となって湿気が除去された室内空気は、次に
再熱熱交換器５４に流入したときに高温高圧の冷媒によ
って再加熱される。それによって熱を失って凝縮した冷
媒は、前記のように第２減圧装置５６と３方弁５７を経
て室内熱交換器５５において蒸発し、圧縮機５１に還流
する。従って、再熱熱交換器５４は、前記室内熱交換器
５５によって除湿されると同時に冷却された空気を再加
熱して、室内空気と同程度の温度に戻すことになる。Then, the indoor air from which the humidity has been removed by driving the indoor fan 61 to lower the temperature by exchanging heat with the low temperature refrigerant in the indoor heat exchanger 55, then flows into the reheat heat exchanger 54. When it does, it is reheated by the high temperature and high pressure refrigerant. As a result, the refrigerant that has lost heat and condensed thereby evaporates in the indoor heat exchanger 55 via the second pressure reducing device 56 and the three-way valve 57, and returns to the compressor 51. Therefore, the reheat heat exchanger 54 reheats the air that has been dehumidified by the indoor heat exchanger 55 and is cooled at the same time, and returns the temperature to the same level as the indoor air.
【００１９】以上、詳細に説明したように、本発明は、
除湿運転時に室外熱交換器を使用しないことによって室
外ファンを駆動する必要がないので、室外ファン駆動に
よる騒音発生を防止することが出来る効果がある。ま
た、室外ファン駆動の抑制により管抵抗損失が少なくな
り、圧縮機の負荷を低下させることが出来、既存のもの
より消費電力を減少させることが出来るという効果があ
る。As described in detail above, the present invention is
Since it is not necessary to drive the outdoor fan by not using the outdoor heat exchanger during the dehumidifying operation, it is possible to prevent noise from being generated by driving the outdoor fan. Further, there is an effect that the tube resistance loss is reduced by suppressing the driving of the outdoor fan, the load of the compressor can be reduced, and the power consumption can be reduced as compared with the existing one.
【００２０】また、図３と図４は、本発明の第２実施例
によるシステム構成図と作動を示す流れ図であって、所
望の設定温度（Ｔｓ）を設定して作動を開始すると、制
御部１２０は圧縮機１０１をオンすると同時に、室外フ
ァン１０３や室内ファン１０８を起動する。圧縮機１０
１がオンすることにより、図示した矢印方向に冷媒が流
れ、冷房サイクルが形成される。3 and 4 are flow charts showing the system configuration and the operation according to the second embodiment of the present invention. When the desired set temperature (Ts) is set and the operation is started, the control unit is started. 120 turns on the compressor 101 and, at the same time, activates the outdoor fan 103 and the indoor fan 108. Compressor 10
When 1 is turned on, the refrigerant flows in the direction of the arrow shown, and a cooling cycle is formed.
【００２１】冷房作動時に制御部１２０は、設定温度
（Ｔｓ）が所定の高温（Ｔ1 、図４の実施例ではＴ1 ＝
２４℃）よりも高いときは、室内温度（Ｔｒ）が設定温
度（Ｔｓ）に到達するまで強段階の冷房モードを実行す
るようになる。ここで、強段階の冷房モードとは、室外
ファン１０３と室内ファン１０８を高速運転し、冷媒が
室外熱交換器１０２、減圧装置１０５、再熱熱交換器１
０７を通過するようにソレノイドバルブ１０４が作動す
ると共に、電子膨脹バルブ１０９が完全に開かれる状態
である。When the cooling operation is performed, the control unit 120 determines that the set temperature (Ts) is a predetermined high temperature (T 1 , in the embodiment of FIG. 4, T 1 =
When the temperature is higher than 24 ° C., the strong-stage cooling mode is executed until the indoor temperature (Tr) reaches the set temperature (Ts). Here, in the strong-stage cooling mode, the outdoor fan 103 and the indoor fan 108 are operated at high speed, and the refrigerant is the outdoor heat exchanger 102, the pressure reducing device 105, and the reheat heat exchanger 1.
The solenoid valve 104 is operated so as to pass through 07, and the electronic expansion valve 109 is completely opened.
【００２２】即ち、冷媒は、圧縮機１０１を通過して室
外熱交換器１０２、ソレノイドバルブ１０４、減圧装置
１０５、再熱熱交換器１０７、電子膨脹バルブ１０９、
室内熱交換器１１０を経て圧縮機１０１へ還流するよう
に流れる。そして、室外熱交換器１０２は凝縮器として
作動し、再熱熱交換器１０７や室内熱交換器１１０は全
て蒸発器として作動する。That is, the refrigerant passes through the compressor 101, the outdoor heat exchanger 102, the solenoid valve 104, the pressure reducing device 105, the reheat heat exchanger 107, the electronic expansion valve 109,
It flows so as to return to the compressor 101 via the indoor heat exchanger 110. Then, the outdoor heat exchanger 102 operates as a condenser, and the reheat heat exchanger 107 and the indoor heat exchanger 110 all operate as an evaporator.
【００２３】一方、設定温度（Ｔｓ）が所定の高温（Ｔ
1 ）よりも低いときは、室内温度（Ｔｒ）が所定の高温
（Ｔ1 ）よりも低くなる時まで強段階の冷房モードを行
なった後、設定温度（Ｔｓ）が所定の低温（Ｔ2 、図４
の実施例ではＴ2 ＝２０℃）よりも高いときは、室内温
度（Ｔｒ）が設定温度（Ｔｓ）に到達する時まで中段階
の冷房モードを行なうようになる。ここで、中段階の冷
房モードとは、室内ファン１０８が中速運転、室外ファ
ン１０３が中速または低速運転し、冷媒が室外熱交換器
１０２、バイパス１０６及び再熱熱交換器１０７を通過
するようにソレノイドバルブ１０４が作動すると共に、
電子膨脹バルブ１０９が絞り作用をする状態である。On the other hand, the set temperature (Ts) is a predetermined high temperature (Ts).
1) lower when than after the indoor temperature (Tr) makes a strong stage cooling mode until when lower than the predetermined high temperature (T 1), the set temperature (Ts) a predetermined low temperature (T 2, Figure 4
In this embodiment, when the temperature is higher than T 2 = 20 ° C.), the middle stage cooling mode is performed until the room temperature (Tr) reaches the set temperature (Ts). Here, in the middle-stage cooling mode, the indoor fan 108 operates at medium speed, the outdoor fan 103 operates at medium speed or low speed, and the refrigerant passes through the outdoor heat exchanger 102, the bypass 106, and the reheat heat exchanger 107. Solenoid valve 104 operates as
The electronic expansion valve 109 is in a state of acting as a diaphragm.
【００２４】即ち、冷媒は、圧縮機１０１、室外熱交換
器１０２、ソレノイドバルブ１０４、バイパス１０６、
再熱熱交換器１０７、電子膨脹バルブ１０９、室内熱交
換器１１０を経て圧縮機１０１へ還流する。そして、室
外熱交換器１０２は凝縮器として、再熱熱交換器１０７
もまた一つの凝縮器として、電子膨脹バルブ１０９は減
圧装置として、室内熱交換器１１０は蒸発器として作用
する。この時、室内ファン１０８の駆動により室内熱交
換器１１０を通過することによって低温冷媒と熱交換
し、低温となって湿気を除去された空気は、さらに再熱
熱交換器１０７によって再加熱され、室内除湿を行なう
ようになる。That is, the refrigerant is the compressor 101, the outdoor heat exchanger 102, the solenoid valve 104, the bypass 106,
It recirculates to the compressor 101 via the reheat heat exchanger 107, the electronic expansion valve 109, and the indoor heat exchanger 110. The outdoor heat exchanger 102 serves as a condenser, and the reheat heat exchanger 107 is used.
Also, as one condenser, the electronic expansion valve 109 functions as a decompressor, and the indoor heat exchanger 110 functions as an evaporator. At this time, the air that has been heat-exchanged with the low-temperature refrigerant by passing through the indoor heat exchanger 110 by the driving of the indoor fan 108 and having the temperature reduced to remove moisture is reheated by the reheat heat exchanger 107, Dehumidify indoors.
【００２５】一方、設定温度（Ｔｓ）が所定の低温（Ｔ
2 ）よりも低いときは、室内温度（Ｔｒ）が所定の低温
（Ｔ2 ）よりも低くなる時まで中段階の冷房モードを行
なった後、室内温度（Ｔｒ）が設定温度（Ｔｓ）に到達
する時まで弱段階の冷房モードを行なう。ここで、弱段
階の冷房モードとは、冷媒の流れは中段階の冷房モード
のような状態として、室内ファン１０８は低速、かつ室
外ファン１０３は低速ないし運転停止とする状態であ
る。従って、中段階の冷房モードよりも全体に冷房能力
が小さくなるものの、現在の熱伝達よりも残留熱伝達の
方が大きくなり、室内温度を維持しながら除湿を行なう
ことになる。On the other hand, the set temperature (Ts) is a predetermined low temperature (Ts).
When it is lower than 2 ), the room temperature (Tr) reaches the set temperature (Ts) after performing the middle-stage cooling mode until the room temperature (Tr) becomes lower than the predetermined low temperature (T 2 ). Until a certain time, the air conditioning mode of a weak stage is performed. Here, the weak stage cooling mode is a state in which the flow of the refrigerant is in the middle stage cooling mode, the indoor fan 108 is at a low speed, and the outdoor fan 103 is at a low speed or operation is stopped. Therefore, although the overall cooling capacity is smaller than that in the middle-stage cooling mode, the residual heat transfer is larger than the current heat transfer, and dehumidification is performed while maintaining the room temperature.
【００２６】[0026]
【発明の効果】以上、詳細に説明したように、本発明に
おいては、除湿運転時に室外熱交換器は実質的に使用し
ないので、室外ファンを駆動する必要がなくなり、室外
ファン駆動による雑音発生を防止し得る効果がある。As described above in detail, in the present invention, since the outdoor heat exchanger is not substantially used during the dehumidifying operation, it is not necessary to drive the outdoor fan, and the noise generation due to the driving of the outdoor fan is eliminated. It has a preventable effect.
【００２７】あわせて、室外ファンの駆動を抑制するこ
とにより、管抵抗損失が小さくなるから、圧縮機の負荷
を低減させることができるので、既存のものよりも消費
電力を減少し得る効果がある。In addition, by suppressing the drive of the outdoor fan, the tube resistance loss is reduced, so that the load of the compressor can be reduced, and thus there is an effect that the power consumption can be reduced as compared with the existing one. .
【００２８】また、設定温度によって冷媒の流動流れ経
路を変化させることによって、室内温度を低下させず所
定温度に維持しながら除湿を行なうことができて、快適
な室内環境を得ることができる効果がある。Further, by changing the flow path of the refrigerant according to the set temperature, dehumidification can be performed while maintaining the room temperature at a predetermined temperature without lowering, and a comfortable room environment can be obtained. is there.
【図１】本発明の第１実施例による空気調和機の冷房運
転を示すシステム構成図である。FIG. 1 is a system configuration diagram showing a cooling operation of an air conditioner according to a first embodiment of the present invention.
【図２】本発明の第１実施例による空気調和機の除湿運
転を示すシステム構成図である。FIG. 2 is a system configuration diagram showing a dehumidifying operation of the air conditioner according to the first embodiment of the present invention.
【図３】本発明の第２実施例による空気調和機のシステ
ム構成図である。FIG. 3 is a system configuration diagram of an air conditioner according to a second embodiment of the present invention.
【図４】第２実施例の動作を示した流れ図である。FIG. 4 is a flowchart showing the operation of the second embodiment.
【図５】従来の空気調和機の冷房モードを示すシステム
構成図である。FIG. 5 is a system configuration diagram showing a cooling mode of a conventional air conditioner.
【図６】従来の空気調和機の除湿モードを示すシステム
構成図である。FIG. 6 is a system configuration diagram showing a dehumidifying mode of a conventional air conditioner.
５１，１０１…圧縮機 ５２，１０２…室外熱交換器 ５３…第１減圧装置 ５４，１０７…再熱熱交換器 ５５，１１０…室内熱交換器 ５６…第２減圧装置 ５７…３方バルブ ５９…制御部 ６０，１０３…室外ファン ６１，１０８…室内ファン ６２…除湿冷媒制御部 １０４…ソレノイドバルブ １０５…減圧装置 １０６…バイパス １０９…電子膨脹バルブ 51, 101 ... Compressor 52, 102 ... Outdoor heat exchanger 53 ... First depressurizing device 54, 107 ... Reheat heat exchanger 55, 110 ... Indoor heat exchanger 56 ... Second depressurizing device 57 ... Three-way valve 59 ... Control unit 60, 103 ... Outdoor fan 61, 108 ... Indoor fan 62 ... Dehumidifying refrigerant control unit 104 ... Solenoid valve 105 ... Pressure reducing device 106 ... Bypass 109 ... Electronic expansion valve
Claims (4)
と、室内熱交換器と、室内ファン及び室外ファンとを備
える空気調和機の除湿装置において、 前記減圧装置と室内熱交換器との間に設置される再熱熱
交換器と、 室外熱交換器と再熱熱交換器とを連結するバイパスと、 室外熱交換器から出る冷媒が減圧装置またはバイパスの
どちらか一方を通過するように制御する３方バルブと、 再熱熱交換器と室内熱交換器との間に設置される電子膨
脹バルブとを備えていることを特徴とする空気調和機の
除湿装置。1. A dehumidifying device for an air conditioner including a compressor, an outdoor heat exchanger, a pressure reducing device, an indoor heat exchanger, and an indoor fan and an outdoor fan, wherein the depressurizing device and the indoor heat exchanger are provided. Between the outdoor heat exchanger and the bypass, which connects the outdoor heat exchanger and the reheat heat exchanger, and the refrigerant from the outdoor heat exchanger must pass through either the decompression device or the bypass. A dehumidifying device for an air conditioner, comprising: a three-way valve controlled in accordance with the above, and an electronic expansion valve installed between the reheat heat exchanger and the indoor heat exchanger.
と、室内熱交換器と、室内ファン及び室外ファンとを備
える空気調和機の除湿装置において、冷房時には圧縮機
から吐出される冷媒を室外熱交換器に流入させる一方、
除湿時には前記圧縮機から吐出される冷媒を直接に再熱
熱交換器に流入させて、除湿時に前記室外熱交換器に冷
媒が流入することを防止する除湿冷媒制御手段を備えて
いることを特徴とする空気調和機の除湿装置。2. A dehumidifying device for an air conditioner comprising a compressor, an outdoor heat exchanger, a pressure reducing device, an indoor heat exchanger, an indoor fan and an outdoor fan, and a refrigerant discharged from the compressor during cooling. While flowing into the outdoor heat exchanger,
The dehumidifying refrigerant control means for causing the refrigerant discharged from the compressor to directly flow into the reheat heat exchanger during dehumidification and preventing the refrigerant from flowing into the outdoor heat exchanger during dehumidification is characterized. Dehumidifier for air conditioner.
って構成したことを特徴とする請求項２記載の空気調和
機の除湿装置。3. The dehumidifying device for an air conditioner according to claim 2, wherein the dehumidifying refrigerant control means is constituted by a three-way valve.
1 ）及び所定の低温（Ｔ2 ）と比べて、Ｔｓ≧Ｔ1 であ
る場合は、第１段階の冷房モードを行ない、 Ｔ1 ≧Ｔｓ≧Ｔ2 である場合は、第１段階の冷房モード
を行った後に第２段階の冷房モードを行ない、Ｔｓ＜Ｔ
2 である場合は、第１段階及び第２段階の冷房モードを
行った後に第３段階の冷房モードを行うことを特徴とす
る空気調和機の除湿方法。ここで、第１段階の冷房モー
ドとは、室内ファン及び室外ファンを高速運転し、３方
バルブが室外熱交換器から出る冷媒が減圧装置を通って
再熱熱交換器に流れるように作動すると共に、電子膨脹
バルブが完全に開放している状態であり、 第２段階の冷房モードとは、室内ファンは中速、室外フ
ァンは中速または低速運転され、３方バルブは室外熱交
換器から出る冷媒がバイパスを通って再熱熱交換器へ直
接に流れるように作動すると共に、電子膨脹バルブが減
圧装置として作動する状態であり、 第３段階の冷房モードとは、冷媒の流れは第２段階の冷
房モードと同一であるが、室内ファンは低速、室外ファ
ンは低速または運転停止とする状態を、それぞれ意味す
るものとする。4. The indoor set temperature (Ts) is set to a predetermined high temperature (Ts).
1 ) and a predetermined low temperature (T 2 ), when Ts ≧ T 1 , the first stage cooling mode is performed, and when T 1 ≧ Ts ≧ T 2 , the first stage cooling mode After that, the second stage cooling mode is performed, and Ts <T
When it is 2 , the dehumidifying method of the air conditioner, which comprises performing the cooling mode of the third stage after performing the cooling mode of the first stage and the second stage. Here, in the first-stage cooling mode, the indoor fan and the outdoor fan are operated at high speed, and the three-way valve operates so that the refrigerant discharged from the outdoor heat exchanger flows through the pressure reducing device to the reheat heat exchanger. At the same time, the electronic expansion valve is completely open. In the second stage cooling mode, the indoor fan operates at medium speed, the outdoor fan operates at medium speed or low speed, and the three-way valve operates from the outdoor heat exchanger. In the third cooling mode, the refrigerant flow is in the second cooling mode, in which the discharged refrigerant operates so as to flow directly to the reheat heat exchanger through the bypass and the electronic expansion valve operates as a decompression device. It is the same as the step cooling mode, but means a state in which the indoor fan is at low speed and the outdoor fan is at low speed or operation is stopped.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940012410A KR960001655A (en) | 1994-06-02 | 1994-06-02 | Air conditioner and its operation method |
| KR12410/1994 | 1994-11-29 | ||
| KR1019940031753A KR960018395A (en) | 1994-11-29 | 1994-11-29 | Dehumidifier of Air Conditioner |
| KR31753/1994 | 1994-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0842938A true JPH0842938A (en) | 1996-02-16 |
Family
ID=26630415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7136815A Pending JPH0842938A (en) | 1994-06-02 | 1995-06-02 | Dehumidifying device and method of air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0842938A (en) |
| CN (1) | CN1119261A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102889705A (en) * | 2012-10-25 | 2013-01-23 | 南通华信中央空调有限公司 | Dehumidifying and energy-saving type control system under full fresh air working condition |
| CN104180439A (en) * | 2014-08-28 | 2014-12-03 | 广东申菱空调设备有限公司 | High-temperature adjustable temperature dehumidifier and control method thereof |
| CN105928065A (en) * | 2016-04-29 | 2016-09-07 | 海信（山东）空调有限公司 | Air-conditioner constant temperature dehumidification method and constant temperature dehumidification air-conditioner |
| US9834063B2 (en) | 2014-02-06 | 2017-12-05 | Hanon Systems | Heat pump system for vehicle |
| DE102010026354B4 (en) | 2009-07-10 | 2022-02-17 | Denso Corporation | Air conditioning device for a vehicle |
| CN114110981A (en) * | 2021-11-24 | 2022-03-01 | 广东美的制冷设备有限公司 | Fresh air equipment control method and device, fresh air equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097865A (en) * | 2001-09-25 | 2003-04-03 | Daikin Ind Ltd | Air conditioner |
| JP3646722B2 (en) * | 2003-08-18 | 2005-05-11 | ダイキン工業株式会社 | Humidity control device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5878060A (en) * | 1981-10-31 | 1983-05-11 | 松下電器産業株式会社 | Air conditioner |
| JPH02254267A (en) * | 1989-03-29 | 1990-10-15 | Toshiba Corp | Air conditioner |
| JPH05332638A (en) * | 1992-06-04 | 1993-12-14 | Daikin Ind Ltd | Air conditioner |
| JPH05340643A (en) * | 1992-06-12 | 1993-12-21 | Toshiba Corp | Air conditioner |
-
1995
- 1995-06-01 CN CN 95106601 patent/CN1119261A/en active Pending
- 1995-06-02 JP JP7136815A patent/JPH0842938A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5878060A (en) * | 1981-10-31 | 1983-05-11 | 松下電器産業株式会社 | Air conditioner |
| JPH02254267A (en) * | 1989-03-29 | 1990-10-15 | Toshiba Corp | Air conditioner |
| JPH05332638A (en) * | 1992-06-04 | 1993-12-14 | Daikin Ind Ltd | Air conditioner |
| JPH05340643A (en) * | 1992-06-12 | 1993-12-21 | Toshiba Corp | Air conditioner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010026354B4 (en) | 2009-07-10 | 2022-02-17 | Denso Corporation | Air conditioning device for a vehicle |
| CN102889705A (en) * | 2012-10-25 | 2013-01-23 | 南通华信中央空调有限公司 | Dehumidifying and energy-saving type control system under full fresh air working condition |
| US9834063B2 (en) | 2014-02-06 | 2017-12-05 | Hanon Systems | Heat pump system for vehicle |
| CN104180439A (en) * | 2014-08-28 | 2014-12-03 | 广东申菱空调设备有限公司 | High-temperature adjustable temperature dehumidifier and control method thereof |
| CN105928065A (en) * | 2016-04-29 | 2016-09-07 | 海信（山东）空调有限公司 | Air-conditioner constant temperature dehumidification method and constant temperature dehumidification air-conditioner |
| CN114110981A (en) * | 2021-11-24 | 2022-03-01 | 广东美的制冷设备有限公司 | Fresh air equipment control method and device, fresh air equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1119261A (en) | 1996-03-27 |
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