JPH0611206A - Refrigerant heating type air conditioner - Google Patents
Refrigerant heating type air conditionerInfo
- Publication number
- JPH0611206A JPH0611206A JP16938192A JP16938192A JPH0611206A JP H0611206 A JPH0611206 A JP H0611206A JP 16938192 A JP16938192 A JP 16938192A JP 16938192 A JP16938192 A JP 16938192A JP H0611206 A JPH0611206 A JP H0611206A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- refrigerant
- temperature
- combustion gas
- fan
- 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.)
- Granted
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
(57)【要約】
【目的】 冷凍サイクルの温度変化に対して冷媒の循環
量を変化させる時に、予め冷媒の温度を補正し、しかる
後に室外熱交換器における冷媒凝縮量を制御することに
よって室外熱交換器や室内熱交換器でのハンチング現象
を防止する冷媒加熱式空気調和機を提供する。
【構成】 室外熱交換器３の室外ファン９のファンタッ
プを切換えるファンタップ切換手段１０と、燃焼ガス熱
交換器４の入口側の冷媒温度を検出する温度センサー２
２と、燃焼ガス熱交換器４の加熱量を制御する比例弁１
５と、ファンタップ切換手段１０と比例弁１５とを制御
する制御装置７とを設け、除湿運転中に温度センサー２
２によって冷媒温度を検知し、制御装置７によって比例
弁１５とファンタップ切換手段１０とを作動させて冷媒
温度を補正した後に、室外熱交換器３における冷媒凝縮
量を変化させるように制御する。
(57) [Abstract] [Purpose] When the circulation amount of the refrigerant is changed in response to the temperature change of the refrigeration cycle, the temperature of the refrigerant is corrected in advance, and then the amount of condensed refrigerant in the outdoor heat exchanger is controlled to control the outdoor Provided is a refrigerant heating type air conditioner which prevents a hunting phenomenon in a heat exchanger or an indoor heat exchanger. [Structure] A fan tap switching means 10 for switching a fan tap of an outdoor fan 9 of an outdoor heat exchanger 3, and a temperature sensor 2 for detecting a refrigerant temperature at an inlet side of a combustion gas heat exchanger 4.
2 and a proportional valve 1 for controlling the heating amount of the combustion gas heat exchanger 4
5 and the control device 7 for controlling the fan tap switching means 10 and the proportional valve 15, and the temperature sensor 2 during the dehumidifying operation.
The refrigerant temperature is detected by 2 and the control device 7 operates the proportional valve 15 and the fan tap switching means 10 to correct the refrigerant temperature, and then controls to change the refrigerant condensation amount in the outdoor heat exchanger 3.
Description
【０００１】[0001]
【産業上の利用分野】本発明は圧縮装置と室外熱交換器
と燃焼ガス熱交換器と室内熱交換器とを含む冷凍サイク
ルを有し、ドライ運転時に冷凍サイクルと燃焼ガス熱交
換器とを同時に使用する冷媒加熱式空気調和機に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a refrigeration cycle including a compressor, an outdoor heat exchanger, a combustion gas heat exchanger, and an indoor heat exchanger, and has a refrigeration cycle and a combustion gas heat exchanger during a dry operation. The present invention relates to a refrigerant heating type air conditioner used at the same time.
【０００２】[0002]
【従来の技術】一般に圧縮装置と室外熱交換器と燃焼ガ
ス熱交換器と室内熱交換器とを含む冷凍サイクルを有
し、除湿運転時に前記燃焼ガス熱交換器によって冷媒を
加熱し、除湿によって温度が低下した空気を前記室内熱
交換器に備えられた再熱器によって適温に再加熱して吹
き出すようにした冷媒加熱式空気調和機が知られてい
る。この冷媒加熱式空気調和機では、除湿運転中に冷媒
の温度が変化したときに、冷媒の循環量を変化させるた
めに、室外熱交換器の放熱量を変化させて冷媒の凝縮量
を変化させる。同時に、減少された冷媒循環量によって
適当に除湿機能を維持できるように冷媒に対する加熱量
を変化させる。2. Description of the Related Art Generally, a refrigeration cycle including a compression device, an outdoor heat exchanger, a combustion gas heat exchanger, and an indoor heat exchanger is provided, and a refrigerant is heated by the combustion gas heat exchanger during dehumidification operation to remove dehumidification. There is known a refrigerant heating type air conditioner in which air whose temperature has dropped is reheated to a proper temperature by a reheater provided in the indoor heat exchanger and blown out. In this refrigerant heating type air conditioner, when the temperature of the refrigerant changes during the dehumidifying operation, in order to change the circulation amount of the refrigerant, the heat dissipation amount of the outdoor heat exchanger is changed to change the condensation amount of the refrigerant. . At the same time, the amount of heating of the refrigerant is changed so that the dehumidifying function can be appropriately maintained by the reduced amount of refrigerant circulation.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の冷媒加熱式空気調和機では、冷媒の温度が上昇した
時に、冷媒の循環量を変化させるために、冷媒の凝縮量
と冷媒への加熱量を同時に変化させるので、冷媒の温度
が加熱量の変化に追随しないうちに室外熱交換器の放熱
量が変化する。例えば冷媒の温度が過度に上昇したよう
な場合、室外熱交換器において未だ昇温されていない冷
媒が冷やされ、冷媒ガスの凝縮量が急増する。このこと
により、冷媒の流れが滞り、熱交換がスムーズに行われ
ずに（この現象を以下単にハンチングという）冷凍サイ
クル全体の温度が急激に変化したり、室内吹出し温度が
変化したり、冷媒音が発生したりすることがあった。そ
こで、本発明の目的は冷凍サイクルの温度変化に対して
冷媒の循環量を変化させる時に、予め冷媒の温度を補正
し、しかる後に室外熱交換器における冷媒凝縮量を制御
することによって室外熱交換器や室内熱交換器でのハン
チング現象を防止できる冷媒加熱式空気調和機を提供す
ることにある。However, in the above conventional refrigerant heating type air conditioner, in order to change the circulation amount of the refrigerant when the temperature of the refrigerant rises, the condensation amount of the refrigerant and the heating amount to the refrigerant are changed. Are simultaneously changed, the heat radiation amount of the outdoor heat exchanger changes before the temperature of the refrigerant follows the change of the heating amount. For example, if the temperature of the refrigerant rises excessively, the refrigerant that has not been heated in the outdoor heat exchanger is cooled, and the amount of condensed refrigerant gas increases rapidly. As a result, the flow of the refrigerant is stagnant, the heat exchange is not smoothly performed (this phenomenon is simply referred to as hunting), the temperature of the entire refrigeration cycle suddenly changes, the indoor blowout temperature changes, and the refrigerant noise changes. There was something that happened. Therefore, an object of the present invention is to change the circulation amount of the refrigerant with respect to the temperature change of the refrigeration cycle, by correcting the temperature of the refrigerant in advance, and thereafter controlling the refrigerant condensation amount in the outdoor heat exchanger to thereby perform the outdoor heat exchange. A refrigerant heating type air conditioner capable of preventing a hunting phenomenon in an air conditioner or an indoor heat exchanger is provided.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に本発明による冷媒加熱式空気調和機は、圧縮装置と室
外熱交換器と燃焼ガス熱交換器と室内熱交換器とを含む
冷凍サイクルを有し、除湿運転時に燃焼ガス熱交換器に
よって冷媒を加熱し、除湿によって温度が低下した空気
を室内熱交換器に備えられた再熱器によって適温に再加
熱して吹き出すようにした冷媒加熱式空気調和機におい
て、室外熱交換器の室外ファンのファンタップを切換え
るファンタップ切換手段と、燃焼ガス熱交換器の入口側
の冷媒の温度を検出する温度センサーと、燃焼ガス熱交
換器のガスバーナーの加熱量を制御する比例弁と、ファ
ンタップ切換手段と比例弁とを制御する制御装置とを有
し、制御装置は除湿運転中に温度センサーによって冷媒
温度の変動を検知し、比例弁を作動させて燃焼ガス熱交
換器によって冷媒の温度を補正した後に、ファンタップ
切換手段を作動させて室外熱交換器における冷媒凝縮量
を変化させるように制御を行うことを特徴とするもので
ある。To achieve the above object, a refrigerant heating type air conditioner according to the present invention comprises a refrigeration cycle including a compressor, an outdoor heat exchanger, a combustion gas heat exchanger and an indoor heat exchanger. The heating of the refrigerant is carried out by the combustion gas heat exchanger during dehumidification operation, and the air whose temperature has been lowered due to dehumidification is reheated to an appropriate temperature by the reheater provided in the indoor heat exchanger and blown out. In an air conditioner, a fan tap switching means for switching a fan tap of an outdoor fan of an outdoor heat exchanger, a temperature sensor for detecting the temperature of a refrigerant on the inlet side of the combustion gas heat exchanger, and a gas for the combustion gas heat exchanger. It has a proportional valve for controlling the heating amount of the burner, and a control device for controlling the fan tap switching means and the proportional valve. The control device detects the fluctuation of the refrigerant temperature by the temperature sensor during the dehumidifying operation. , The proportional valve is operated to correct the temperature of the refrigerant by the combustion gas heat exchanger, and then the fan tap switching means is operated to change the refrigerant condensation amount in the outdoor heat exchanger. It is a thing.
【０００５】[0005]
【作用】本発明による冷媒加熱式空気調和機は、除湿運
転中に制御装置が温度センサーによって冷媒温度の変動
を検知した時に、予め比例弁を作動させて燃焼ガス熱交
換器によって冷媒の温度を補正し、次にファンタップ切
換手段を作動させて室外熱交換器における冷媒凝縮量を
変化させるように制御を行うので、室外熱交換器で冷却
能力が増大された時には冷媒の温度が上昇しているの
で、冷媒凝縮量が過度に増加してハンチング現象を生じ
ることがない。In the refrigerant heating type air conditioner according to the present invention, when the control device detects the fluctuation of the refrigerant temperature by the temperature sensor during the dehumidifying operation, the proportional valve is operated in advance to control the temperature of the refrigerant by the combustion gas heat exchanger. The temperature of the refrigerant rises when the cooling capacity of the outdoor heat exchanger is increased because the correction is performed and then the fan tap switching means is operated to change the refrigerant condensation amount in the outdoor heat exchanger. Therefore, the amount of condensed refrigerant does not excessively increase and the hunting phenomenon does not occur.
【０００６】[0006]
【実施例】以下本発明の一実施例について、添付の図面
を参照して説明する。図１は本発明の冷媒加熱式空気調
和機の構成を概略示している。全体を符号１で示した本
発明の冷媒加熱式空気調和機は、圧縮装置２と室外熱交
換器３と燃焼ガス熱交換器４と第１電子膨脹弁１９ａと
室内熱交換器５と第２電子膨脹弁１９ｂと冷・暖房切換
用の四方切換弁６と制御装置７を有している。室外熱交
換器３は室外熱交換器本体８と室外ファン９とからな
り、室外ファン９が起こす空気流Ｆを室外熱交換器本体
８と対向させて冷媒と熱交換できるように構成されてい
る。室外ファン９はファンタップ切換手段１０を有し、
このファンタップ切換手段１０によって送風量を切り換
えることができ、冷房・除湿時に冷媒の凝縮量を増減さ
せることができる。燃焼ガス熱交換器４は燃焼ガス熱交
換器本体１１と加熱用のガスバーナー１２とからなり、
暖房および除湿時にガスバーナー１２によって冷媒を暖
めることができるように構成されている。ガスバーナー
１２へ燃料ガスを供給する管路１３には、燃料ガスの供
給を遮断する電磁弁１４と、燃料ガスの流量を制御する
比例弁１５が設けられている。電磁弁１４はガスバーナ
ー１２への燃料の供給を素早く遮断するのに用いられ
る。比例弁１５はその開度を調整することにより、ガス
バーナー１２の加熱量を調節することができる。室内熱
交換器５は冷却器１６と再熱器１７とシロッコファン１
８とからなり、空気の流れＦに対して上流から下流方向
に冷却器１６、再熱器１７、シロッコファン１８の順序
に配設されている。このような配列により、除湿運転の
時には除湿によって温度が低下した空気が再熱器１７で
適温に暖めた後に室内に吹き出されるようにすることが
できる。四方切換弁６は、冷房運転あるいは暖房運転に
応じて冷媒の流れ方向を切り換えることができる構造を
有し、図１に示す四方切換弁６内部の実線は冷房・除湿
時の冷媒の流路を示している。上記圧縮装置２と室外熱
交換器３と燃焼ガス熱交換器４と第１電子膨脹弁１９ａ
と室内熱交換器５と第２電子膨脹弁１９ｂと四方切換弁
６は管路によって図１に示すように接続され、所定部分
には逆止弁２０と二方弁２１が配設され、冷房と暖房運
転のいずれをも行うことができる冷凍サイクルを構成し
ている。室内熱交換器５は室内Ｉに設置され、圧縮装置
と室外熱交換器と燃焼ガス熱交換器と室内熱交換器と四
方切換弁は室外IIに設置される。燃焼ガス熱交換器４の
入口側の管路には冷媒の温度を検知する温度センサー２
２が設けられている。この温度センサー２２は制御装置
７に接続され、制御装置７はファンタップ切換手段１０
と比例弁１５とを経時的に制御することができるように
構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 schematically shows the configuration of a refrigerant heating type air conditioner of the present invention. The refrigerant heating type air conditioner of the present invention, which is generally designated by reference numeral 1, is a compressor 2, an outdoor heat exchanger 3, a combustion gas heat exchanger 4, a first electronic expansion valve 19a, an indoor heat exchanger 5, and a second heat exchanger. It has an electronic expansion valve 19b, a four-way switching valve 6 for switching between cooling and heating, and a controller 7. The outdoor heat exchanger 3 includes an outdoor heat exchanger body 8 and an outdoor fan 9, and is configured so that an air flow F generated by the outdoor fan 9 is opposed to the outdoor heat exchanger body 8 and heat can be exchanged with a refrigerant. . The outdoor fan 9 has a fan tap switching means 10,
The fan tap switching means 10 can switch the amount of blown air, and the amount of condensed refrigerant can be increased or decreased during cooling and dehumidification. The combustion gas heat exchanger 4 comprises a combustion gas heat exchanger body 11 and a heating gas burner 12,
The gas burner 12 can warm the refrigerant during heating and dehumidification. The pipe 13 for supplying the fuel gas to the gas burner 12 is provided with a solenoid valve 14 for shutting off the supply of the fuel gas and a proportional valve 15 for controlling the flow rate of the fuel gas. The solenoid valve 14 is used to quickly shut off the fuel supply to the gas burner 12. The heating amount of the gas burner 12 can be adjusted by adjusting the opening of the proportional valve 15. The indoor heat exchanger 5 includes a cooler 16, a reheater 17, and a sirocco fan 1.
8, a cooler 16, a reheater 17, and a sirocco fan 18 are arranged in this order from upstream to downstream with respect to the air flow F. With such an arrangement, during the dehumidifying operation, the air whose temperature has been lowered by dehumidification can be blown out into the room after being warmed to an appropriate temperature by the reheater 17. The four-way switching valve 6 has a structure capable of switching the flow direction of the refrigerant depending on the cooling operation or the heating operation, and the solid line inside the four-way switching valve 6 shown in FIG. Shows. The compression device 2, the outdoor heat exchanger 3, the combustion gas heat exchanger 4, and the first electronic expansion valve 19a.
1, the indoor heat exchanger 5, the second electronic expansion valve 19b, and the four-way switching valve 6 are connected by a pipe line as shown in FIG. And a refrigeration cycle capable of performing both heating operation and heating operation. The indoor heat exchanger 5 is installed in the indoor I, and the compressor, the outdoor heat exchanger, the combustion gas heat exchanger, the indoor heat exchanger, and the four-way switching valve are installed in the outdoor II. A temperature sensor 2 for detecting the temperature of the refrigerant is provided in the conduit on the inlet side of the combustion gas heat exchanger 4.
Two are provided. The temperature sensor 22 is connected to the control device 7, which controls the fan tap switching means 10
And the proportional valve 15 can be controlled over time.
【０００７】次に上記構成に基づいて本実施例の冷媒加
熱式空気調和機の作用について以下に説明する。除湿運
転時には、冷媒は図１に示す矢印のように、圧縮装置２
で圧縮された後に室外熱交換器３で凝縮され、次に燃焼
ガス熱交換器４で加熱され、第１電子膨脹弁１９ａで膨
脹されて室内熱交換器５に送られ、室内熱交換器５で除
湿した後に四方切換弁６を通って再び圧縮装置２で圧縮
される。また、室外熱交換器３を出た冷媒の一部は二方
弁２１を通って圧縮装置２に還流され、室内Ｉの熱交換
に寄与しない。この圧縮装置２に還流する冷媒ガスの量
を調節することにより、室内Ｉで熱交換される熱量を調
節することができる。言葉を変えれば、室外熱交換器３
での冷媒の凝縮量を調節することにより、室内Ｉで熱交
換される熱量を調節することができるのである。室内Ｉ
の室内熱交換器５では、冷媒は再熱器１７を通った後に
第２電子膨脹弁１９ｂで膨脹されて冷却器１６に送られ
るので、冷却器１６で除湿された低温の空気は高温の冷
媒が流れる再熱器１７で再び暖められた後に室内に吹き
出される。このことにより、使用者は温度を下げること
なく除湿のみを行うことができる。Next, the operation of the refrigerant heating type air conditioner of the present embodiment will be described based on the above configuration. During the dehumidifying operation, the refrigerant is compressed by the compressor 2 as shown by the arrow in FIG.
After being compressed by, the air is condensed in the outdoor heat exchanger 3, then heated by the combustion gas heat exchanger 4, expanded by the first electronic expansion valve 19a and sent to the indoor heat exchanger 5, and the indoor heat exchanger 5 After being dehumidified by, it is compressed again by the compression device 2 through the four-way switching valve 6. Further, a part of the refrigerant that has exited the outdoor heat exchanger 3 is returned to the compression device 2 through the two-way valve 21 and does not contribute to heat exchange in the room I. The amount of heat exchanged in the room I can be adjusted by adjusting the amount of the refrigerant gas that returns to the compression device 2. In other words, the outdoor heat exchanger 3
The amount of heat exchanged in the room I can be adjusted by adjusting the amount of condensation of the refrigerant. Room I
In the indoor heat exchanger 5, the refrigerant is expanded by the second electronic expansion valve 19b after being passed through the reheater 17 and sent to the cooler 16, so that the low temperature air dehumidified by the cooler 16 is a high temperature refrigerant. Is reheated by the reheater 17 that flows, and then blown out into the room. As a result, the user can only dehumidify without lowering the temperature.
【０００８】以下に冷媒の温度が上昇した場合を例に、
本実施例の冷媒加熱式空気調和機の冷媒循環量の制御方
法を説明する。本実施例の冷媒加熱式空気調和機１で
は、冷媒温度が上昇して所定の値を超えた時に燃焼ガス
熱交換器４の入口側の温度センサー２２によってこれを
検知し、制御装置７に信号を送る。制御装置７は温度セ
ンサー２２の信号を受け取って図２に示すような経時的
な制御を行う。図２の横軸は時間ｔを示し、縦軸はファ
ンタップおよび燃焼ガス熱交換器の補正量ｖ、実線Ｌ1
は室外ファン１０のファンタップの状態、一点鎖線Ｌ2
は燃焼ガス熱交換器４の加熱量をそれぞれ示している。
図２に示すように、本実施例の制御装置７はＡ時点で温
度センサー２２の信号を受け取り、比例弁１５を制御し
て燃焼ガス熱交換器４の加熱量を増大させる。燃焼ガス
熱交換器４の加熱量が増大されて所定時間経たＢ時点で
ファンタップ切換手段１０を作動させて室外熱交換器３
の放熱量を増大させ、冷媒の凝縮量を増加させる。Ａ時
点とＢ時点の時間差は、燃焼ガス熱交換器４の加熱量の
補正によって冷凍サイクルの冷媒全体の温度が上昇する
のに十分な時間とする。このような制御方法により、室
外熱交換器３のファンタップを切り換える時には、冷媒
の温度が上昇しており、ファンタップの切換えによって
冷媒の凝縮量が過度に増加することがなく、ハンチング
現象を防止することができる。Taking the case where the temperature of the refrigerant rises as an example,
A method of controlling the refrigerant circulation amount of the refrigerant heating type air conditioner of the present embodiment will be described. In the refrigerant heating type air conditioner 1 of the present embodiment, when the refrigerant temperature rises and exceeds a predetermined value, this is detected by the temperature sensor 22 on the inlet side of the combustion gas heat exchanger 4, and a signal is sent to the control device 7. To send. The control device 7 receives the signal from the temperature sensor 22 and performs control over time as shown in FIG. The horizontal axis of FIG. 2 represents time t, and the vertical axis represents the correction amount v of the fan tap and the combustion gas heat exchanger, the solid line L 1
Is the state of the fan tap of the outdoor fan 10, the one-dot chain line L 2
Indicates the heating amount of the combustion gas heat exchanger 4, respectively.
As shown in FIG. 2, the control device 7 of the present embodiment receives the signal of the temperature sensor 22 at time A and controls the proportional valve 15 to increase the heating amount of the combustion gas heat exchanger 4. When the heating amount of the combustion gas heat exchanger 4 is increased and a predetermined time elapses B, the fan tap switching means 10 is operated to operate the outdoor heat exchanger 3.
To increase the amount of heat radiation and increase the amount of condensation of the refrigerant. The time difference between the time points A and B is set to a time period sufficient for the temperature of the entire refrigerant in the refrigeration cycle to rise due to the correction of the heating amount of the combustion gas heat exchanger 4. With such a control method, when the fan taps of the outdoor heat exchanger 3 are switched, the temperature of the refrigerant rises, the condensation amount of the refrigerant does not excessively increase due to the switching of the fan taps, and the hunting phenomenon is prevented. can do.
【０００９】図３は、制御装置７の具体的な制御方法の
流れを示している。ステップ１００において温度センサ
ー２２の信号によるファンタップの切換要求の有無が判
断される。ファンタップの切換要求があった場合は、ス
テップ１１０において燃焼ガス熱交換器４の加熱量が補
正されると共に、制御装置７内のタイマーがスタートさ
れる。次にステップ１２０において、タイマーによって
設定された所定時間が満了しているか否かが判断され、
タイマーの設定時間が満了している場合にはステップ１
３０において、ファンタップ切換手段１０が作動され、
室外ファン９のファンタップが切り換えられる。上記の
例では温度が上昇して所定値を超えた場合について説明
したが、冷凍サイクルの冷媒の温度が低下して冷媒の循
環量を増加させる場合も同様に、燃焼ガス熱交換器４の
加熱量を調節して温度補正を行った後にファンタップを
切り換えてハンチングを防止することができるのは明ら
かである。FIG. 3 shows a flow of a concrete control method of the control device 7. In step 100, it is determined whether or not there is a fan tap switching request based on the signal from the temperature sensor 22. When there is a fan tap switching request, the heating amount of the combustion gas heat exchanger 4 is corrected in step 110, and the timer in the control device 7 is started. Next, at step 120, it is judged whether or not the predetermined time set by the timer has expired,
Step 1 if the timer has expired
At 30, the fan tap switching means 10 is activated,
The fan tap of the outdoor fan 9 is switched. In the above example, the case where the temperature rises and exceeds the predetermined value has been described. However, when the temperature of the refrigerant in the refrigeration cycle decreases and the circulation amount of the refrigerant increases, the heating of the combustion gas heat exchanger 4 is similarly performed. Obviously, hunting can be prevented by switching the fan taps after adjusting the amount and temperature compensation.
【００１０】[0010]
【発明の効果】上記の説明から明らかなように本発明に
よれば、室外熱交換器の入口温度センサーによって冷媒
温度の上昇を検出し、予め比例弁によって燃焼ガス熱交
換器の加熱量を補正し、所定時間経過後に室外熱交換器
の放熱量を調節するので、熱交換器において冷媒の凝縮
量が過度に多くなることがなく、ハンチング現象を防止
する冷媒加熱式空気調和機を得ることができる。As is apparent from the above description, according to the present invention, the rise of the refrigerant temperature is detected by the inlet temperature sensor of the outdoor heat exchanger, and the heating amount of the combustion gas heat exchanger is corrected in advance by the proportional valve. However, since the heat radiation amount of the outdoor heat exchanger is adjusted after the lapse of a predetermined time, the condensation amount of the refrigerant in the heat exchanger does not increase excessively, and a refrigerant heating type air conditioner that prevents the hunting phenomenon can be obtained. it can.
【図１】本発明の冷媒加熱式空気調和機の構成を示した
概略図。FIG. 1 is a schematic diagram showing a configuration of a refrigerant heating type air conditioner of the present invention.
【図２】本発明の冷媒加熱式空気調和機の制御による室
外ファンのファンタップ状態および燃焼ガス熱交換器の
加熱量の経時変化を示したグラフ。FIG. 2 is a graph showing changes over time in the fan tap state of the outdoor fan and the heating amount of the combustion gas heat exchanger under the control of the refrigerant heating type air conditioner of the present invention.
【図３】本発明の冷媒加熱式空気調和機の制御装置の制
御の流れを示したブロック図。FIG. 3 is a block diagram showing a control flow of a controller for a refrigerant heating type air conditioner of the present invention.
【符号の説明】 １ 冷媒加熱式空気調和機 ２ 圧縮装置 ３ 室外熱交換器 ４ 燃焼ガス熱交換器 ５ 室内熱交換器 ７ 制御装置 ９ 室外ファン １０ ファンタップ切換手段 １２ ガスバーナー １５ 比例弁 １７ 再熱器 ２２ 温度センサー[Explanation of Codes] 1 Refrigerant heating type air conditioner 2 Compressor 3 Outdoor heat exchanger 4 Combustion gas heat exchanger 5 Indoor heat exchanger 7 Control device 9 Outdoor fan 10 Fan tap switching means 12 Gas burner 15 Proportional valve 17 Re Heater 22 Temperature sensor
Claims (1)
器と室内熱交換器とを含む冷凍サイクルを有し、除湿運
転時に前記燃焼ガス熱交換器によって冷媒を加熱し、除
湿によって温度が低下した空気を前記室内熱交換器に備
えられた再熱器によって適温に再加熱して吹き出すよう
にした冷媒加熱式空気調和機において、 前記室外熱交換器の室外ファンのファンタップを切換え
るファンタップ切換手段と、前記燃焼ガス熱交換器の入
口側の冷媒の温度を検出する温度センサーと、前記燃焼
ガス熱交換器のガスバーナーの加熱量を制御する比例弁
と、前記ファンタップ切換手段と比例弁とを制御する制
御装置とを有し、前記制御装置は除湿運転中に前記温度
センサーによって冷媒温度の変動を検知し、前記比例弁
を作動させて前記燃焼ガス熱交換器によって冷媒の温度
を補正した後に、前記ファンタップ切換手段を作動させ
て前記室外熱交換器における冷媒凝縮量を変化させるよ
うに制御を行うことを特徴とする冷媒加熱式空気調和
機。1. A refrigeration cycle including a compressor, an outdoor heat exchanger, a combustion gas heat exchanger, and an indoor heat exchanger, wherein the combustion gas heat exchanger heats a refrigerant during dehumidification operation, and the temperature is changed by dehumidification. In a refrigerant heating type air conditioner configured to reheat the air whose temperature has decreased to a proper temperature by a reheater provided in the indoor heat exchanger and blow it out, a fan that switches a fan tap of an outdoor fan of the outdoor heat exchanger. Tap switching means, a temperature sensor that detects the temperature of the refrigerant on the inlet side of the combustion gas heat exchanger, a proportional valve that controls the heating amount of the gas burner of the combustion gas heat exchanger, and the fan tap switching means And a controller for controlling the proportional valve, the controller detecting the variation of the refrigerant temperature by the temperature sensor during the dehumidifying operation, and operating the proportional valve to perform the combustion gas heat exchange. The refrigerant heating type air conditioner is characterized in that after the temperature of the refrigerant is corrected by the heater, the fan tap switching means is operated to change the amount of refrigerant condensation in the outdoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16938192A JP3231081B2 (en) | 1992-06-26 | 1992-06-26 | Refrigerant heating air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16938192A JP3231081B2 (en) | 1992-06-26 | 1992-06-26 | Refrigerant heating air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0611206A true JPH0611206A (en) | 1994-01-21 |
| JP3231081B2 JP3231081B2 (en) | 2001-11-19 |
Family
ID=15885549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16938192A Expired - Fee Related JP3231081B2 (en) | 1992-06-26 | 1992-06-26 | Refrigerant heating air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3231081B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083012A (en) * | 1997-11-06 | 2000-07-04 | Yazaki Corporation | Rear combination lamp |
| US6461027B1 (en) | 1999-07-02 | 2002-10-08 | Yazaki Corporation | Rear combination lamp |
| US6607293B2 (en) | 1999-11-30 | 2003-08-19 | Yazaki Corporation | Rear combination lamp |
-
1992
- 1992-06-26 JP JP16938192A patent/JP3231081B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083012A (en) * | 1997-11-06 | 2000-07-04 | Yazaki Corporation | Rear combination lamp |
| US6461027B1 (en) | 1999-07-02 | 2002-10-08 | Yazaki Corporation | Rear combination lamp |
| US6607293B2 (en) | 1999-11-30 | 2003-08-19 | Yazaki Corporation | Rear combination lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3231081B2 (en) | 2001-11-19 |
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