JPH0712416A - Air-conditioning machine - Google Patents
Air-conditioning machineInfo
- Publication number
- JPH0712416A JPH0712416A JP17981793A JP17981793A JPH0712416A JP H0712416 A JPH0712416 A JP H0712416A JP 17981793 A JP17981793 A JP 17981793A JP 17981793 A JP17981793 A JP 17981793A JP H0712416 A JPH0712416 A JP H0712416A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- refrigerant
- indoor heat
- compressor
- valve
- 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
- 238000004378 air conditioning Methods 0.000 title abstract 2
- 239000003507 refrigerant Substances 0.000 claims abstract description 63
- 230000006837 decompression Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 21
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷媒加熱器を備える空
気調和機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner equipped with a refrigerant heater.
【０００２】[0002]
【従来の技術】一般に、空気熱源のヒートポンプに冷媒
加熱器を設け、暖房運転時には、この冷媒加熱器により
補助的に冷媒を加熱する空気調和機は知られている（例
えば、特公昭５０−３６６９５号）。この種のもので
は、四方弁の切り替えにより、冷房、暖房、除湿の各運
転モードを選択できるほかに、とくに外気温が低下した
時には、強力暖房運転モードを選択できるという利点が
得られる。2. Description of the Related Art Generally, an air conditioner is known in which a heat pump of an air heat source is provided with a refrigerant heater, and the refrigerant heater supplementally heats the refrigerant during heating operation (for example, Japanese Patent Publication No. 50-36695). issue). In this type, by switching the four-way valve, it is possible to select not only the cooling, heating and dehumidifying operation modes, but also the advantage that the strong heating operation mode can be selected especially when the outside temperature drops.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、昨今の
空気調和機では、上述した運転モードのほかに多種の機
能が要求され、その中の１つとして、いわゆる暖房気味
除湿運転モードの要求が高まっている。However, recent air conditioners are required to have various functions in addition to the above-described operation modes, and one of them is the so-called heating dehumidification operation mode. There is.
【０００４】そこで、本発明の目的は、その暖房気味除
湿運転を簡単な構成により、可能にした空気調和機を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner capable of heating and dehumidifying operation with a simple structure.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、圧縮機、室外熱交換器、第１の減圧装
置、第１の室内熱交換器、第２の室内熱交換器、を順に
冷媒配管によりつなぎ、第１の室内熱交換器、第２の室
内熱交換器間には、第２の減圧装置、第１の開閉弁を並
列につなぎ、且つ、圧縮機、室外熱交換器、第１の減圧
装置をバイパスするバイパス管を設け、このバイパス管
には、冷媒ポンプ、冷媒加熱器を直列に設け、冷媒ポン
プ、冷媒加熱器間の冷媒配管と、室外熱交換器、第１の
減圧装置間の冷媒配管とを連通管によりつなぎ、この連
通管には第２の開閉弁を設けたことを特徴とするもので
ある。To achieve the above object, the present invention provides a compressor, an outdoor heat exchanger, a first pressure reducing device, a first indoor heat exchanger, and a second indoor heat exchanger. , Are sequentially connected by a refrigerant pipe, and a second pressure reducing device and a first on-off valve are connected in parallel between the first indoor heat exchanger and the second indoor heat exchanger, and the compressor and the outdoor heat are connected. A bypass pipe for bypassing the exchanger and the first pressure reducing device is provided, and a refrigerant pump and a refrigerant heater are provided in series in the bypass pipe, and a refrigerant pipe between the refrigerant pump and the refrigerant heater and an outdoor heat exchanger, It is characterized in that a refrigerant pipe between the first pressure reducing devices is connected by a communication pipe, and a second opening / closing valve is provided in this communication pipe.
【０００６】[0006]
【作用】本発明によれば、第１の開閉弁、及び第２の開
閉弁を適宜に開閉し、圧縮機を駆動することにより、冷
房運転を行い、冷媒ポンプを駆動することにより、暖房
運転を行う。そして、この発明の特徴である暖房気味除
湿モードでは、第１の開閉弁を閉じ、第２の開閉弁を開
いて、圧縮機を駆動する。冷媒ポンプは停止である。す
ると、冷媒は、室外熱交換器で凝縮した後、冷媒加熱器
で加熱され、第１の室内熱交換器を通った後に、第２の
減圧装置で減圧され、第２の室内熱交換器で蒸発して、
圧縮機に戻る。これによれば、冷媒は、冷媒加熱器によ
り加熱されるので、第１の室内熱交換器を通る際には、
冷媒の温度は、例えば４０〜４５℃になり、第２の室内
熱交換器を通る際には、第２の減圧装置で減圧されてい
るので、例えば０〜１０℃になる。従って、室内送風機
により送風すると、空気はまず第２の熱交換器を通って
除湿され、第１の熱交換器を通って暖められるので、暖
房気味除湿が可能になる。According to the present invention, the first opening / closing valve and the second opening / closing valve are appropriately opened / closed, the compressor is driven to perform the cooling operation, and the refrigerant pump is driven to perform the heating operation. I do. Then, in the heating dehumidifying mode, which is a feature of the present invention, the first on-off valve is closed and the second on-off valve is opened to drive the compressor. The refrigerant pump is stopped. Then, the refrigerant is condensed in the outdoor heat exchanger, heated by the refrigerant heater, passed through the first indoor heat exchanger, decompressed by the second decompression device, and then decompressed by the second indoor heat exchanger. Evaporate,
Return to compressor. According to this, since the refrigerant is heated by the refrigerant heater, when passing through the first indoor heat exchanger,
The temperature of the refrigerant is, for example, 40 to 45 ° C., and is 0 to 10 ° C., for example, because the refrigerant is depressurized by the second pressure reducing device when passing through the second indoor heat exchanger. Therefore, when the air is blown by the indoor blower, the air is first dehumidified through the second heat exchanger and then warmed through the first heat exchanger, so that heating-like dehumidification is possible.
【０００７】[0007]
【実施例】以下、本発明による空気調和機の一実施例を
添付図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an air conditioner according to the present invention will be described below with reference to the accompanying drawings.
【０００８】図１において、１は圧縮機を示している。
この圧縮機１には室外熱交換器３、第１の膨脹弁（第１
の減圧装置）５、第１の室内熱交換器７、第２の膨脹弁
（第２の減圧装置）９、これと並列につながる第１の開
閉弁１１、第２の室内熱交換器１３、アキュームレータ
１５、が順に冷媒配管によりつながれている。In FIG. 1, reference numeral 1 denotes a compressor.
The compressor 1 includes an outdoor heat exchanger 3 and a first expansion valve (first
Pressure reducing device) 5, a first indoor heat exchanger 7, a second expansion valve (second pressure reducing device) 9, a first opening / closing valve 11 connected in parallel therewith, a second indoor heat exchanger 13, The accumulator 15 is sequentially connected by a refrigerant pipe.
【０００９】また、上記の回路には、圧縮機１、室外熱
交換器３、第１の膨脹弁５をバイパスするバイパス管１
７が設けられ、このバイパス管１７には、レシーバ１
９、冷媒ポンプ２１、冷媒加熱器２３が直列に設けられ
ている。この冷媒加熱器２３は、後述する暖房運転モー
ドと暖房気味除湿モードの時にバーナ２５により加熱さ
れる。In the above circuit, the bypass pipe 1 for bypassing the compressor 1, the outdoor heat exchanger 3 and the first expansion valve 5 is also provided.
7 is provided, and this bypass pipe 17 has a receiver 1
9, the refrigerant pump 21, and the refrigerant heater 23 are provided in series. The refrigerant heater 23 is heated by the burner 25 in a heating operation mode and a heating dehumidifying mode, which will be described later.
【００１０】さらに、冷媒ポンプ２１、冷媒加熱器２３
間の冷媒配管１０１と、室外熱交換器３、第１の膨脹弁
５間の冷媒配管１０３とは、連通管２７によりつなが
れ、この連通管２７には第２の開閉弁２９が設けられて
いる。Further, the refrigerant pump 21 and the refrigerant heater 23
The refrigerant pipe 101 between them and the refrigerant pipe 103 between the outdoor heat exchanger 3 and the first expansion valve 5 are connected by a communication pipe 27, and the communication pipe 27 is provided with a second opening / closing valve 29. .
【００１１】次に、暖房、冷房、暖房気味除湿の各運転
モードを説明する。Next, the operation modes of heating, cooling, and dehumidifying with heating will be described.
【００１２】図１を参照して、暖房運転モードでは第１
の開閉弁１１を開き、第２の開閉弁２９を閉じて、冷媒
ポンプ２１を駆動する。圧縮機１は停止させ、バーナ２
５では燃焼が行われる。Referring to FIG. 1, the first operation is performed in the heating operation mode.
The opening / closing valve 11 of 1 is opened, the second opening / closing valve 29 is closed, and the refrigerant pump 21 is driven. Compressor 1 stopped, burner 2
At 5, combustion takes place.
【００１３】すると、冷媒は、矢印で示すように流れ、
冷媒加熱器２３で加熱された後に、第１、第２の室内熱
交換器７、１３を通過し、そこで放熱してから、冷媒ポ
ンプ２１に戻る。この実施例では、暖房運転モードにお
いて、消費電力の大きな圧縮機１を駆動しないので、省
エネである。Then, the refrigerant flows as indicated by the arrow,
After being heated by the refrigerant heater 23, it passes through the first and second indoor heat exchangers 7 and 13 and radiates heat there, and then returns to the refrigerant pump 21. In this embodiment, the compressor 1 which consumes a large amount of power is not driven in the heating operation mode, thus saving energy.
【００１４】冷房運転モードでは、図２に示すように、
第１の開閉弁１１を開き、第２の開閉弁２９を閉じて、
圧縮機１を駆動する。冷媒ポンプ２１及びバーナ２５は
停止である。In the cooling operation mode, as shown in FIG.
Open the first on-off valve 11 and close the second on-off valve 29,
The compressor 1 is driven. The refrigerant pump 21 and the burner 25 are stopped.
【００１５】すると、冷媒は、矢印で示すように流れ、
室外熱交換器３で凝縮した後に、第１の膨脹弁５を通
り、さらに第１、第２の室内熱交換器７、１３を通り、
そこで蒸発して、圧縮機１に戻る。Then, the refrigerant flows as shown by the arrow,
After being condensed in the outdoor heat exchanger 3, it passes through the first expansion valve 5, and further passes through the first and second indoor heat exchangers 7 and 13.
There, it evaporates and returns to the compressor 1.
【００１６】以上の説明から明らかなように、この実施
例によれば、冷房運転時には圧縮機１を駆動し、暖房運
転時には冷媒ポンプ２１を駆動するとともに、バーナ２
５を作動させる。As is apparent from the above description, according to this embodiment, the compressor 1 is driven during the cooling operation, the refrigerant pump 21 is driven during the heating operation, and the burner 2 is operated.
Activate 5.
【００１７】次に、この実施例の特徴である暖房気味除
湿モードでは、図３に示すように、第１の開閉弁１１を
閉じ、第２の開閉弁２９を開いて、圧縮機１を駆動す
る。冷媒ポンプ２１は停止である。またバーナ２５では
燃焼が行われる。Next, in the heating dehumidifying mode, which is a feature of this embodiment, as shown in FIG. 3, the first opening / closing valve 11 is closed and the second opening / closing valve 29 is opened to drive the compressor 1. To do. The refrigerant pump 21 is stopped. Further, the burner 25 burns.
【００１８】すると、冷媒は、矢印で示すように流れ、
室外熱交換器３で凝縮した後、冷媒加熱器２３で加熱さ
れ、第１の室内熱交換器７を通った後に、第２の膨脹弁
９で減圧され、第２の室内熱交換器１１で蒸発して、圧
縮機１に戻る。Then, the refrigerant flows as shown by the arrow,
After being condensed in the outdoor heat exchanger 3, it is heated by the refrigerant heater 23, passes through the first indoor heat exchanger 7, is decompressed by the second expansion valve 9, and is then cooled by the second indoor heat exchanger 11. It evaporates and returns to the compressor 1.
【００１９】しかして、この実施例によれば、冷媒は、
冷媒加熱器２３により加熱されるので、第１の室内熱交
換器７を通る際には、冷媒の温度は、例えば４０〜４５
℃になり、第２の室内熱交換器１３を通る際には、第２
の膨脹弁９で減圧されているので、例えば０〜１０℃に
なる。According to this embodiment, however, the refrigerant is
Since it is heated by the refrigerant heater 23, the temperature of the refrigerant is, for example, 40 to 45 when passing through the first indoor heat exchanger 7.
When the temperature of the second indoor heat exchanger 13 is reached,
Since the pressure is reduced by the expansion valve 9 of No. 1, the temperature becomes, for example, 0 to 10.degree.
【００２０】従って、図示を省略した室内送風機により
送風すると、空気はまず第２の熱交換器１３を通って除
湿され、第１の熱交換器９を通って暖められるので、暖
房気味除湿が可能になる。Therefore, when air is blown by an indoor blower (not shown), the air is first dehumidified through the second heat exchanger 13 and then warmed through the first heat exchanger 9, so that heating-like dehumidification is possible. become.
【００２１】尚、通常の除湿運転モードを可能にするに
は、図４に点線で示すように、バイパス管７１をさらに
設け、このバイパス管７１に第３の開閉弁７３を設けて
おけば好都合である。To enable the normal dehumidifying operation mode, it is convenient to further provide a bypass pipe 71 and a third opening / closing valve 73 on this bypass pipe 71 as shown by the dotted line in FIG. Is.
【００２２】この場合には、第１、第２の開閉弁１１、
２９を閉じ、第３の開閉弁７３を開いて、圧縮機１を駆
動する。言うまでもなく、冷媒ポンプ２１及びバーナ２
５は停止する。すると、冷媒は、図示のように流れ、室
外熱交換器３で凝縮した後に、第１の室内熱交換器７を
経て第２の膨脹弁９で減圧され、第２の室内熱交換器１
３で蒸発して、圧縮機１に戻る。In this case, the first and second on-off valves 11,
29 is closed, the 3rd on-off valve 73 is opened, and the compressor 1 is driven. Needless to say, the refrigerant pump 21 and the burner 2
5 stops. Then, the refrigerant flows as shown in the figure, and after being condensed in the outdoor heat exchanger 3, the refrigerant is decompressed by the second expansion valve 9 via the first indoor heat exchanger 7 and the second indoor heat exchanger 1
Evaporate at 3 and return to compressor 1.
【００２３】これによれば、上述の暖房気味除湿運転モ
ードのほかに、通常の除湿運転モードを、区別した状態
で選択することができる。According to this, in addition to the above-mentioned heating dehumidifying operation mode, a normal dehumidifying operation mode can be selected in a distinguished state.
【００２４】[0024]
【発明の効果】以上の説明から明らかなように、本発明
によれば、暖房運転モードでの消費電力を抑えることが
でき、しかも、きわめて簡単な構成により、暖房気味除
湿運転モードの選択が可能になる。As is apparent from the above description, according to the present invention, it is possible to suppress the power consumption in the heating operation mode, and it is possible to select the heating dehumidification operation mode with an extremely simple structure. become.
【図１】本発明による空気調和機の一実施例を示す回路
図であり、暖房運転時の冷媒の流れを示す回路図であ
る。FIG. 1 is a circuit diagram showing an embodiment of an air conditioner according to the present invention, which is a circuit diagram showing the flow of refrigerant during heating operation.
【図２】同じく、冷房運転時の冷媒の流れを示す回路図
である。FIG. 2 is likewise a circuit diagram showing the flow of the refrigerant during the cooling operation.
【図３】同じく、暖房気味除湿運転時の冷媒の流れを示
す回路図である。FIG. 3 is a circuit diagram showing the flow of the refrigerant during the heating dehumidifying operation.
【図４】同じく、通常の除湿運転時の冷媒の流れを示す
回路図である。FIG. 4 is a circuit diagram showing the flow of refrigerant during normal dehumidifying operation.
１ 圧縮機 ３ 室外熱交換器 ５ 第１の膨脹弁（第１の減圧装置） ７ 第１の室内熱交換器 ９ 第２の膨脹弁（第２の減圧装置） １１ 第１の開閉弁 １３ 第２の室内熱交換器 １５ アキュームレータ １７ バイパス管 ２１ 冷媒ポンプ ２３ 冷媒加熱器 ２５ バーナ ２７ 連通管 ２９ 第２の開閉弁 DESCRIPTION OF SYMBOLS 1 Compressor 3 Outdoor heat exchanger 5 1st expansion valve (1st pressure reduction apparatus) 7 1st indoor heat exchanger 9 2nd expansion valve (2nd pressure reduction apparatus) 11 1st on-off valve 13th Indoor heat exchanger 2 15 Accumulator 17 Bypass pipe 21 Refrigerant pump 23 Refrigerant heater 25 Burner 27 Communication pipe 29 Second on-off valve
Claims (1)
置、第１の室内熱交換器、第２の室内熱交換器、を順に
冷媒配管によりつなぎ、第１の室内熱交換器、第２の室
内熱交換器間には、第２の減圧装置、第１の開閉弁を並
列につなぎ、且つ、圧縮機、室外熱交換器、第１の減圧
装置をバイパスするバイパス管を設け、このバイパス管
には、冷媒ポンプ、冷媒加熱器を直列に設け、冷媒ポン
プ、冷媒加熱器間の冷媒配管と、室外熱交換器、第１の
減圧装置間の冷媒配管とを連通管によりつなぎ、この連
通管には第２の開閉弁を設けたことを特徴とする空気調
和機。1. A compressor, an outdoor heat exchanger, a first pressure reducing device, a first indoor heat exchanger, a second indoor heat exchanger, which are sequentially connected by a refrigerant pipe, and a first indoor heat exchanger, Between the second indoor heat exchanger, a second decompression device, a first opening / closing valve are connected in parallel, and a bypass pipe that bypasses the compressor, the outdoor heat exchanger, and the first decompression device is provided, A refrigerant pump and a refrigerant heater are provided in series in this bypass pipe, and a refrigerant pipe between the refrigerant pump and the refrigerant heater is connected to an outdoor heat exchanger and a refrigerant pipe between the first pressure reducing devices by a communication pipe, An air conditioner characterized in that a second on-off valve is provided in this communication pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17981793A JPH0712416A (en) | 1993-06-25 | 1993-06-25 | Air-conditioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17981793A JPH0712416A (en) | 1993-06-25 | 1993-06-25 | Air-conditioning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0712416A true JPH0712416A (en) | 1995-01-17 |
Family
ID=16072413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17981793A Pending JPH0712416A (en) | 1993-06-25 | 1993-06-25 | Air-conditioning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712416A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016057015A (en) * | 2014-09-10 | 2016-04-21 | リンナイ株式会社 | Heating system |
-
1993
- 1993-06-25 JP JP17981793A patent/JPH0712416A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016057015A (en) * | 2014-09-10 | 2016-04-21 | リンナイ株式会社 | Heating system |
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