JPH0634223A - Room heater/cooler - Google Patents
Room heater/coolerInfo
- Publication number
- JPH0634223A JPH0634223A JP19045192A JP19045192A JPH0634223A JP H0634223 A JPH0634223 A JP H0634223A JP 19045192 A JP19045192 A JP 19045192A JP 19045192 A JP19045192 A JP 19045192A JP H0634223 A JPH0634223 A JP H0634223A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- valve
- heat exchanger
- heating
- check 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
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、室内外のユニットを冷
媒配管接続して暖冷房を行う装置において、特に室外ユ
ニットに冷媒加熱器を有し、燃焼により冷媒を加熱し、
室内ユニットへ熱搬送して暖房を行う積雪地用の暖冷房
機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for heating / cooling by connecting a refrigerant pipe to an indoor / outdoor unit, and in particular, has a refrigerant heater in the outdoor unit to heat the refrigerant by combustion.
The present invention relates to a heating / cooling machine for a snowy area that conveys heat to an indoor unit for heating.
【０００２】[0002]
【従来の技術】従来、この種の暖冷房機は、図２に示す
ように、圧縮機１、逆止弁１８、四方切換え弁２、室外
側熱交換器３、減圧機構１９、電磁弁２０、室内側熱交
換器７、前記四方切換え弁２、逆止弁２１、アキュムレ
ータ９を環状に連結して冷媒循環回路を構成し、この冷
媒循環回路に、一端が室内側熱交換器７と電磁弁２０と
の間に接続され、他端が逆止弁２１とアキュムレータ９
との間に接続された冷媒加熱回路を設け、この冷媒加熱
回路を、冷媒加熱時に開放する電磁弁２２と、冷媒を加
熱する冷媒加熱器１３と、補助アキュムレータ２３から
なる構成とし、さらに圧縮機１の高圧側配管と低圧側配
管をバイパスする冷媒加熱時の冷媒循環量調節用の電磁
弁２４を設けていた。2. Description of the Related Art Conventionally, as shown in FIG. 2, a heating / cooling machine of this type has a compressor 1, a check valve 18, a four-way switching valve 2, an outdoor heat exchanger 3, a pressure reducing mechanism 19, and a solenoid valve 20. , The indoor heat exchanger 7, the four-way switching valve 2, the check valve 21, and the accumulator 9 are annularly connected to form a refrigerant circulation circuit. One end of the refrigerant circulation circuit is connected to the indoor heat exchanger 7 and the electromagnetic wave. It is connected between the valve 20 and the other end of the check valve 21 and the accumulator 9
A refrigerant heating circuit connected between the refrigerant heating circuit and the refrigerant heating circuit, the refrigerant heating circuit having a solenoid valve 22 that is opened when the refrigerant is heated, a refrigerant heater 13 that heats the refrigerant, and an auxiliary accumulator 23. The solenoid valve 24 for adjusting the refrigerant circulation amount at the time of heating the refrigerant, which bypasses the high pressure side pipe and the low pressure side pipe of No. 1, was provided.
【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
の構成では、冷媒加熱に要する燃料費の他に圧縮機１の
熱搬送に要する電力消費が大きいため、暖房時のランニ
ングコストが高いと言う問題があった。また、暖房時に
は圧縮機１は主に熱搬送手段としての機能しかなく、暖
房開始時にはヒートポンプのように定格能力以上の出力
が得られることがないため、室内を早く暖める能力とし
ては十分ではなかった。さらに、積雪地では、室外ユニ
ットが雪に埋もれる可能性があるため、室外ユニットを
高い架台の上に設置せざるを得ず、イニシャルコストが
高くなると言う問題があった。However, in the above-described conventional structure, the running cost during heating is high because the electric power consumption required for heat transfer of the compressor 1 is large in addition to the fuel cost required for heating the refrigerant. there were. Further, since the compressor 1 mainly functions only as a heat transfer means during heating and does not provide an output exceeding the rated capacity like a heat pump when starting heating, it is not sufficient as an ability to warm the room quickly. . Further, in a snowy area, the outdoor unit may be buried in the snow, so the outdoor unit has to be installed on a high pedestal, which causes a problem that the initial cost becomes high.
【０００４】本発明は上記従来の問題を解消するもの
で、冷媒加熱時の電力消費を低減し、暖房時のランニン
グコストを減少し、かつ、暖房開始時の出力を上げ、室
内を早く暖めること、および室外ユニットに融雪機能を
備え、積雪地での設置工事の簡易な暖冷房機を提供する
を目的とする。The present invention solves the above-mentioned problems of the prior art by reducing the power consumption during heating of the refrigerant, reducing the running cost during heating, and increasing the output at the start of heating to warm the room quickly. , And the outdoor unit have a snow melting function, and an object thereof is to provide a heating / cooling machine which is easy to install in a snowy area.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、アキュムレータを有し、冷房時、暖房開始
時および融雪時に運転される圧縮機、四方切換え弁、室
外側熱交換器、第１逆止弁、第１減圧機構、室内側熱交
換器、第１電磁弁、前記四方切換え弁、前記アキュムレ
ータを順次環状に連結し、低沸点の冷媒を作動媒体とし
て用いた冷媒循環回路を構成し、第１減圧機構と室内側
熱交換器との間で分岐し、室内側熱交換器と第１電磁弁
との間に至る管路に第２逆止弁、第２電磁弁、受液器お
よび暖房時に冷媒を加熱する冷媒加熱器、第３逆止弁を
直列に設け、受液器内部に暖房時および融雪時に運転さ
れる冷媒ポンプを設け、冷媒ポンプの吸入部は受液器内
下部にあり、冷媒ポンプの吐出管は冷媒加熱器の冷媒流
入口に接続し、第１減圧機構と室内側熱交換器との間で
分岐し、室外側熱交換器と第１逆止弁との間に至る管路
に暖房開始時のみ開く第３電磁弁および第２減圧機構を
直列に設け、第１逆止弁と第１減圧機構との間で分岐
し、第２逆止弁と第２電磁弁との間に至る配管を設け、
室外側熱交換器に併設して圧縮機が稼働する時に運転す
る室外ファンを設けた構成としている。In order to achieve the above object, the present invention has an accumulator, a compressor operated at the time of cooling, at the start of heating and at the time of snow melting, a four-way switching valve, an outdoor heat exchanger, A refrigerant circulation circuit in which a first check valve, a first pressure reducing mechanism, an indoor heat exchanger, a first electromagnetic valve, the four-way switching valve, and the accumulator are sequentially connected in an annular shape and a low boiling point refrigerant is used as a working medium is provided. The second check valve, the second solenoid valve, and the receiving valve are provided in a pipe branching between the first pressure reducing mechanism and the indoor heat exchanger and extending between the indoor heat exchanger and the first solenoid valve. A liquid heater and a refrigerant heater that heats the refrigerant during heating and a third check valve are provided in series, and a refrigerant pump that is operated during heating and during snow melting is provided inside the liquid receiver, and the suction portion of the refrigerant pump is the liquid receiver. At the bottom of the inside, the discharge pipe of the refrigerant pump is connected to the refrigerant inlet of the refrigerant heater, A third solenoid valve that opens only when heating is started and a second pressure reducing mechanism are connected in series in a pipeline that branches between the pressure reducing mechanism and the indoor heat exchanger and that extends between the outdoor heat exchanger and the first check valve. And a pipe that branches between the first check valve and the first pressure reducing mechanism and that extends between the second check valve and the second electromagnetic valve,
An outdoor fan that operates when the compressor is in operation is installed adjacent to the outdoor heat exchanger.
【０００６】[0006]
【作用】上記した構成において、冷媒加熱時には、第１
電磁弁と第３電磁弁を閉じ、第２電磁弁を開き、冷媒ポ
ンプを稼働させ、受液器内の液冷媒を冷媒加熱器内へ送
ると、バーナの燃焼熱により冷媒加熱器内で沸騰しガス
化した冷媒は第１逆止弁があるので、第３逆止弁を通り
室内側熱交換器へ流入し、放熱凝縮し液冷媒となり、第
２逆止弁、第２電磁弁を通り受液器へ戻る。この冷媒循
環により冷媒加熱の暖房運転が行われることになる。ま
た、暖房開始時には、冷媒加熱運転を行なうと同時に第
１電磁弁と第３電磁弁も開き、圧縮機を稼働させること
により、室内側熱交換器で放熱凝縮し、受液器へ戻る液
冷媒の一部は第３電磁弁を通り、第２減圧機構を通り膨
張ガス化し、室外側熱交換器で室外ファンを稼働させる
ことにより大気熱を取り、四方切換え弁、アキュムレー
タを通り圧縮機に吸入され、圧縮機で圧縮高温ガスとな
り四方切換え弁、第１電磁弁を通り、冷媒加熱器で沸騰
しガス化した冷媒と合流し、室内側熱交換器へ流入する
冷媒循環が行われる。一方、冷房を行うときは四方切換
え弁を切換え、第２電磁弁と第３電磁弁を閉じ、第１電
磁弁を開き、圧縮機を運転することにより、圧縮機で圧
縮高温ガスとなった冷媒は四方切換え弁を通り、室外側
熱交換器へ流入し、室外ファンを稼働させることにより
放熱凝縮して液冷媒となり、第１逆止弁を通り、第１減
圧機構を通り膨張ガス化し、室内側熱交換器で空気熱を
取り、第１電磁弁、四方切換え弁、アキュムレータを通
り圧縮機に吸入される冷媒循環が行われる。さらに、融
雪運転を行う時には、第３電磁弁を閉じ、第１電磁弁と
第２電磁弁を開き、冷媒ポンプを稼働させ、受液器内の
液冷媒を冷媒加熱器内へ送ると、バーナの燃焼熱により
冷媒加熱器内で沸騰しガス化した冷媒は、圧縮機を運転
することにより、四方切換え弁、アキュムレータを通り
圧縮機に吸入され、圧縮機でさらに圧縮高温ガスとなり
四方切換え弁を通り、室外側熱交換器へ流入し、室外フ
ァンを稼働させることにより放熱凝縮して液冷媒とな
り、第１逆止弁、第２電磁弁を通り受液器へ戻る。この
冷媒循環により融雪運転が行われることになる。In the above structure, when the refrigerant is heated, the first
When the solenoid valve and the third solenoid valve are closed, the second solenoid valve is opened, the refrigerant pump is operated, and the liquid refrigerant in the receiver is sent into the refrigerant heater, the combustion heat of the burner causes boiling in the refrigerant heater. Since the gasified refrigerant has the first check valve, it flows into the indoor heat exchanger through the third check valve, dissipates heat and condenses into liquid refrigerant, and passes through the second check valve and the second solenoid valve. Return to the receiver. The heating operation for heating the refrigerant is performed by this circulation of the refrigerant. At the start of heating, the first solenoid valve and the third solenoid valve are opened at the same time when the refrigerant heating operation is performed, and the compressor is operated to radiatively condense in the indoor heat exchanger and return to the liquid receiver. Part of the gas flows through the third solenoid valve, through the second pressure reducing mechanism to expansion gas, and the outdoor heat exchanger operates the outdoor fan to take atmospheric heat, and then sucks it into the compressor through the four-way switching valve and accumulator. Then, the compressed high-temperature gas in the compressor passes through the four-way switching valve and the first electromagnetic valve, merges with the gasified refrigerant that has boiled in the refrigerant heater, and then flows into the indoor heat exchanger for circulation of the refrigerant. On the other hand, when cooling is performed, the four-way switching valve is switched, the second solenoid valve and the third solenoid valve are closed, the first solenoid valve is opened, and the compressor is operated. Passes through the four-way switching valve, flows into the outdoor heat exchanger, and radiates and condenses into liquid refrigerant by operating the outdoor fan, passes through the first check valve, passes through the first pressure reducing mechanism, and becomes expanded gas. Refrigerant circulation is performed in which air heat is taken by the inner heat exchanger and is sucked into the compressor through the first electromagnetic valve, the four-way switching valve, and the accumulator. Further, when performing the snow melting operation, the third solenoid valve is closed, the first solenoid valve and the second solenoid valve are opened, the refrigerant pump is operated, and the liquid refrigerant in the receiver is sent into the refrigerant heater. The refrigerant that has boiled and gasified in the refrigerant heater due to the combustion heat of is sucked into the compressor through the four-way switching valve and accumulator by operating the compressor, and becomes further compressed high temperature gas in the compressor to become the four-way switching valve. As described above, the heat flows into the outdoor heat exchanger, and the outdoor fan is operated to radiate and condense to become a liquid refrigerant, which returns to the liquid receiver through the first check valve and the second solenoid valve. The snow-melting operation is performed by this refrigerant circulation.
【０００７】[0007]
【実施例】以下、本発明の一実施例について図１を参照
しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【０００８】図に示すように、圧縮機１、四方切換え弁
２、室外側熱交換器３、第１逆止弁４、第１減圧機構
５、室内側熱交換器６、第１電磁弁７、四方切換え弁
２、アキュムレータ８を順次環状に連結し、低沸点の冷
媒を作動媒体として用いた冷媒循環回路を構成し、第１
減圧機構５と室内側熱交換器６との間で分岐し、室内側
熱交換器６と第１電磁弁７との間に至る管路に第２逆止
弁９、第２電磁弁１０、受液器１１および暖房時に冷媒
を加熱する冷媒加熱器１２、第３逆止弁１３を直列に設
け、受液器１１内部に暖房時および融雪時に運転される
冷媒ポンプ１４を設け、冷媒ポンプ１４の吸入部は受液
器１４内下部にあり、冷媒ポンプ１４の吐出管は冷媒加
熱器１２の冷媒流入口に接続し、第１減圧機構５と室内
側熱交換器６との間で分岐し、室外側熱交換器３と第１
逆止弁４との間に至る管路に暖房開始時のみ開く第３電
磁弁１５および第２減圧機構１６を直列に設け、第１逆
止弁４と第１減圧機構５との間で分岐し、第２逆止弁９
と第２電磁弁１０との間に至る配管を設け、室外側熱交
換器３に併設して圧縮機１が稼働する時に運転する室外
ファン１７を設けた構成としている。As shown in the figure, a compressor 1, a four-way switching valve 2, an outdoor heat exchanger 3, a first check valve 4, a first pressure reducing mechanism 5, an indoor heat exchanger 6, a first solenoid valve 7 are provided. , The four-way switching valve 2 and the accumulator 8 are sequentially connected in an annular shape to form a refrigerant circulation circuit using a low boiling point refrigerant as a working medium.
A second check valve 9 and a second solenoid valve 10 are provided in a pipeline that branches between the pressure reducing mechanism 5 and the indoor heat exchanger 6 and that extends between the indoor heat exchanger 6 and the first solenoid valve 7. The liquid receiver 11, the refrigerant heater 12 that heats the refrigerant during heating, and the third check valve 13 are provided in series, and the refrigerant pump 14 that is operated during heating and during snow melting is provided inside the liquid receiver 11, and the refrigerant pump 14 is provided. Of the refrigerant pump 14 is connected to the refrigerant inlet of the refrigerant heater 12, and is branched between the first pressure reducing mechanism 5 and the indoor heat exchanger 6. , Outdoor heat exchanger 3 and first
A third solenoid valve 15 and a second pressure reducing mechanism 16 that are opened only when heating is started are provided in series in a pipeline that leads to the check valve 4, and a branch is provided between the first check valve 4 and the first pressure reducing mechanism 5. The second check valve 9
And a second solenoid valve 10 are provided with a pipe, and an outdoor fan 17 is provided in parallel with the outdoor heat exchanger 3 to operate when the compressor 1 operates.
【０００９】上記構成において、冷媒加熱時には、第１
電磁弁７と第３電磁弁１５を閉じ、第２電磁弁１０を開
き、冷媒ポンプ１４を稼働させ、受液器１１内の液冷媒
を冷媒加熱器１２内へ送ると、バーナの燃焼熱により冷
媒加熱器１２内で沸騰しガス化した冷媒は第１逆止弁４
があるので、第３逆止弁１３を通り室内側熱交換器６へ
流入し、放熱凝縮し液冷媒となり、第２逆止弁９、第２
電磁弁１０を通り受液器１１へ戻る。この冷媒循環によ
り冷媒加熱の暖房運転が行われ、暖房時の熱搬送に要す
る電力消費は冷媒ポンプ１４の稼働に要する電力という
ことになり、圧縮機１の稼働に比べ著しくランニングコ
ストが安くなる。In the above structure, when the refrigerant is heated, the first
When the electromagnetic valve 7 and the third electromagnetic valve 15 are closed, the second electromagnetic valve 10 is opened, the refrigerant pump 14 is operated, and the liquid refrigerant in the receiver 11 is sent into the refrigerant heater 12, the combustion heat of the burner causes The refrigerant that has boiled and gasified in the refrigerant heater 12 is the first check valve 4
Therefore, it flows through the third check valve 13 into the indoor heat exchanger 6, radiatively condenses and becomes a liquid refrigerant, and the second check valve 9 and the second check valve 2
Return to the liquid receiver 11 through the solenoid valve 10. The heating operation for heating the refrigerant is performed by this refrigerant circulation, and the power consumption required for heat transfer during heating is the electric power required for the operation of the refrigerant pump 14, and the running cost is significantly lower than the operation of the compressor 1.
【００１０】また、暖房開始時には、冷媒加熱運転を行
なうと同時に第１電磁弁７と第３電磁弁１５も開き、圧
縮機１を稼働させることにより、室内側熱交換器６で放
熱凝縮し、受液器１１へ戻る液冷媒の一部は第３電磁弁
１５を通り、第２減圧機構１６を通り膨張ガス化し、室
外側熱交換器３で室外ファン１７を稼働させることによ
り大気熱を取り、四方切換え弁２、アキュムレータ８を
通り圧縮機１に吸入され、圧縮機１で圧縮高温ガスとな
り四方切換え弁２、第１電磁弁７を通り、冷媒加熱器１
２で沸騰しガス化した冷媒と合流し、室内側熱交換器６
へ流入する冷媒循環が行われる。この冷媒循環により燃
焼熱とヒートポンプによる大気熱とを両方同時に暖房に
寄与させることができ、室内を早く暖めることができ
る。At the start of heating, the first solenoid valve 7 and the third solenoid valve 15 are opened at the same time as the refrigerant heating operation is performed, and the compressor 1 is operated to radiate and condense in the indoor heat exchanger 6, Part of the liquid refrigerant that returns to the liquid receiver 11 passes through the third electromagnetic valve 15 and the second depressurization mechanism 16 to become expanded gas, and the outdoor heat exchanger 3 operates the outdoor fan 17 to take atmospheric heat. , The four-way switching valve 2 and the accumulator 8 are sucked into the compressor 1, and become compressed high-temperature gas in the compressor 1, passing through the four-way switching valve 2 and the first solenoid valve 7, and the refrigerant heater 1
The indoor heat exchanger 6 merges with the gasified refrigerant that has boiled in 2
Circulation of the refrigerant flowing into the is performed. By this circulation of the refrigerant, both combustion heat and atmospheric heat from the heat pump can be simultaneously contributed to heating, and the room can be warmed quickly.
【００１１】一方、冷房を行うときは、四方切換え弁２
を切換え、第２電磁弁１０と第３電磁弁１５を閉じ、第
１電磁弁７を開き、圧縮機１を運転することにより、圧
縮機１で圧縮高温ガスとなった冷媒は四方切換え弁２を
通り、室外側熱交換器３へ流入し、室外ファン１７を稼
働させることにより放熱凝縮して液冷媒となり、第１逆
止弁４を通り、第１減圧機構５を通り膨張ガス化し、室
内側熱交換器６で空気熱を取り、第１電磁弁７、四方切
換え弁２、アキュムレータ８を通り圧縮機１に吸入され
る冷媒循環が行われる。On the other hand, when performing cooling, the four-way switching valve 2
, The second solenoid valve 10 and the third solenoid valve 15 are closed, the first solenoid valve 7 is opened, and the compressor 1 is operated. Flow into the outdoor heat exchanger 3, and the outdoor fan 17 is operated to dissipate heat to condense into a liquid refrigerant, pass through the first check valve 4, pass through the first pressure reducing mechanism 5, and become expanded gas. The inside heat exchanger 6 takes in air heat, and the refrigerant is circulated through the first electromagnetic valve 7, the four-way switching valve 2, and the accumulator 8 and drawn into the compressor 1.
【００１２】さらに、融雪運転を行う時には、第３電磁
弁１５を閉じ、第１電磁弁７と第２電磁弁１０を開き、
冷媒ポンプ１を稼働させ、受液器１１内の液冷媒を冷媒
加熱器１２内へ送ると、バーナの燃焼熱により冷媒加熱
器１２内で沸騰しガス化した冷媒は、圧縮機１を運転す
ることにより、四方切換え弁２、アキュムレータ８を通
り圧縮機１に吸入され、圧縮機１でさらに圧縮高温ガス
となり四方切換え弁２を通り、室外側熱交換器３へ流入
し、室外ファン１７を稼働させることにより放熱凝縮し
て液冷媒となり、第１逆止弁４、第２電磁弁１０を通り
受液器１１へ戻る。この冷媒循環により融雪運転が行わ
れ、室外ファン１７から出る温風により室外ユニット付
近の雪を溶かすことになる。Further, when the snow melting operation is performed, the third solenoid valve 15 is closed, the first solenoid valve 7 and the second solenoid valve 10 are opened,
When the refrigerant pump 1 is operated and the liquid refrigerant in the receiver 11 is sent into the refrigerant heater 12, the refrigerant that has boiled and gasified in the refrigerant heater 12 due to the combustion heat of the burner operates the compressor 1. As a result, it is sucked into the compressor 1 through the four-way switching valve 2 and the accumulator 8, and becomes high-temperature compressed gas in the compressor 1, passes through the four-way switching valve 2, flows into the outdoor heat exchanger 3, and operates the outdoor fan 17. By doing so, it radiatively condenses and becomes a liquid refrigerant, and returns to the liquid receiver 11 through the first check valve 4 and the second electromagnetic valve 10. The snow-melting operation is performed by the circulation of the refrigerant, and the warm air discharged from the outdoor fan 17 melts the snow near the outdoor unit.
【００１３】[0013]
【発明の効果】以上のように本発明の暖冷房機によれ
ば、次の効果が得られる。 （１）圧縮機、四方切換え弁、室外側熱交換器、第１逆
止弁、第１減圧機構、室内側熱交換器、第１電磁弁、四
方切換え弁、アキュムレータを順次環状に連結し、低沸
点の冷媒を作動媒体として用いた冷媒循環回路を構成
し、第１減圧機構と室内側熱交換器との間で分岐し、室
内側熱交換器と第１電磁弁との間に至る管路に第２逆止
弁、第２電磁弁、受液器および暖房時に冷媒を加熱する
冷媒加熱器、第３逆止弁を直列に設け、受液器内部に暖
房時および融雪時に運転される冷媒ポンプを設け、冷媒
ポンプの吸入部は受液器内下部にあり、冷媒ポンプの吐
出管は冷媒加熱器の冷媒流入口に接続し、第１減圧機構
と室内側熱交換器との間で分岐し、室外側熱交換器と第
１逆止弁との間に至る管路に暖房開始時のみ開く第３電
磁弁および第２減圧機構を直列に設け、第１逆止弁と第
１減圧機構との間で分岐し、第２逆止弁と第２電磁弁と
の間に至る配管を設け、室外側熱交換器に併設して圧縮
機が稼働する時に運転する室外ファンを設けた構成と
し、冷媒加熱時には、第１電磁弁と第３電磁弁を閉じ、
第２電磁弁を開き、冷媒ポンプを稼働させ、受液器内の
液冷媒を冷媒加熱器内へ送ると、バーナの燃焼熱により
冷媒加熱器内で沸騰しガス化した冷媒は第１逆止弁があ
るので、第３逆止弁を通り室内側熱交換器へ流入し、放
熱凝縮し液冷媒となり、第２逆止弁、第２電磁弁を通り
受液器へ戻る冷媒循環が行われ、暖房時の熱搬送に要す
る電力消費は冷媒ポンプの稼働に要する電力ということ
になり、圧縮機の稼働に比べ著しくランニングコストが
安くなる。 （２）暖房開始時には、冷媒加熱運転を行なうと同時に
第１電磁弁と第３電磁弁も開き、圧縮機を稼働させるこ
とにより、室内側熱交換器で放熱凝縮し、受液器へ戻る
液冷媒の一部は第３電磁弁を通り、第２減圧機構を通り
膨張ガス化し、室外側熱交換器で室外ファンを稼働させ
ることにより大気熱を取り、四方切換え弁、アキュムレ
ータを通り圧縮機に吸入され、圧縮機で圧縮高温ガスと
なり四方切換え弁、第１電磁弁を通り、冷媒加熱器で沸
騰しガス化した冷媒と合流し、室内側熱交換器へ流入す
る冷媒循環が行われ、燃焼熱とヒートポンプによる大気
熱とを両方同時に暖房に寄与させることができ、室内を
早く暖めることができる。 （３）融雪運転を行う時には、第３電磁弁を閉じ、第１
電磁弁と第２電磁弁を開き、冷媒ポンプを稼働させ、受
液器内の液冷媒を冷媒加熱器内へ送ると、バーナの燃焼
熱により冷媒加熱器内で沸騰しガス化した冷媒は、圧縮
機を運転することにより、四方切換え弁、アキュムレー
タを通り圧縮機に吸入され、圧縮機でさらに圧縮高温ガ
スとなり四方切換え弁を通り、室外側熱交換器へ流入
し、室外ファンを稼働させることにより放熱凝縮して液
冷媒となり、第１逆止弁、第２電磁弁を通り受液器へ戻
る冷媒循環が行われ、室外ファンから出る温風により室
外ユニット付近の雪を溶かすことができ、室外ユニット
が積雪で埋もれるのを防ぐための高い架台への設置や除
雪作業が不要となり、設置工事の簡易化と重労働である
除雪作業の軽減がはかれる。As described above, according to the heating / cooling machine of the present invention, the following effects can be obtained. (1) A compressor, a four-way switching valve, an outdoor heat exchanger, a first check valve, a first pressure reducing mechanism, an indoor heat exchanger, a first electromagnetic valve, a four-way switching valve, and an accumulator are sequentially connected in an annular shape, A pipe that constitutes a refrigerant circulation circuit using a low boiling point refrigerant as a working medium, branches between the first pressure reducing mechanism and the indoor heat exchanger, and reaches between the indoor heat exchanger and the first electromagnetic valve. A second check valve, a second electromagnetic valve, a liquid receiver, a refrigerant heater that heats the refrigerant at the time of heating, and a third check valve are provided in series in the passage, and the liquid receiver is operated during heating and during snow melting. A refrigerant pump is provided, the suction part of the refrigerant pump is located in the lower part inside the receiver, the discharge pipe of the refrigerant pump is connected to the refrigerant inlet of the refrigerant heater, and the first decompression mechanism and the indoor heat exchanger are connected. A third solenoid valve and a second pressure reducing valve that branch off and open in a pipe line between the outdoor heat exchanger and the first check valve only when heating is started. The structure is provided in series, a branch is provided between the first check valve and the first pressure reducing mechanism, and a pipe is provided between the second check valve and the second electromagnetic valve, and the pipe is installed side by side with the outdoor heat exchanger. When the refrigerant is heated, the first and third solenoid valves are closed when the refrigerant is heated.
When the second solenoid valve is opened, the refrigerant pump is operated, and the liquid refrigerant in the receiver is sent into the refrigerant heater, the refrigerant that has boiled and gasified in the refrigerant heater due to the combustion heat of the burner is the first check valve. Since there is a valve, the refrigerant circulates through the third check valve into the indoor heat exchanger, radiatively condenses and becomes liquid refrigerant, and then returns to the receiver via the second check valve and the second solenoid valve. The power consumption required for heat transfer during heating is the power required for operating the refrigerant pump, and the running cost is significantly lower than the operation of the compressor. (2) At the start of heating, the refrigerant heating operation is performed at the same time that the first solenoid valve and the third solenoid valve are opened and the compressor is operated to radiate and condense in the indoor heat exchanger and return to the liquid receiver. Part of the refrigerant passes through the third solenoid valve, through the second pressure reducing mechanism, is expanded and gasified, and the outdoor heat exchanger operates the outdoor fan to take atmospheric heat, and passes through the four-way switching valve and accumulator to the compressor. The refrigerant is sucked, becomes high-temperature compressed gas in the compressor, passes through the four-way switching valve and the first solenoid valve, merges with the gasified refrigerant that has boiled in the refrigerant heater, and then flows into the indoor heat exchanger for circulation of the refrigerant and combustion. Both the heat and the atmospheric heat from the heat pump can be simultaneously contributed to the heating, and the room can be warmed quickly. (3) When performing the snow melting operation, the third solenoid valve is closed and the first
When the solenoid valve and the second solenoid valve are opened, the refrigerant pump is operated, and the liquid refrigerant in the receiver is sent into the refrigerant heater, the refrigerant that has boiled and gasified in the refrigerant heater due to the combustion heat of the burner, By operating the compressor, it is sucked into the compressor through the four-way switching valve and accumulator, becomes high temperature compressed gas in the compressor, passes through the four-way switching valve, flows into the outdoor heat exchanger, and operates the outdoor fan. The heat is condensed by heat to become a liquid refrigerant, and the refrigerant is circulated through the first check valve and the second electromagnetic valve and returned to the liquid receiver. The warm air from the outdoor fan can melt the snow near the outdoor unit. It is not necessary to install or remove snow on the high pedestal to prevent the outdoor unit from being buried in snow, which simplifies the installation work and reduces heavy snow removal work.
【図１】本発明の一実施例における暖冷房機のシステム
構成図FIG. 1 is a system configuration diagram of a heating / cooling machine according to an embodiment of the present invention.
【図２】従来の暖冷房機のシステム構成図FIG. 2 is a system configuration diagram of a conventional heating and cooling machine.
１ 圧縮機 ２ 四方切換え弁 ３ 室外側熱交換器 ４ 第１逆止弁 ５ 第１減圧機構 ６ 室内側熱交換器 ７ 第１電磁弁 ８ アキュムレータ ９ 第２逆止弁 １０ 第２電磁弁 １１ 受液器 １２ 冷媒加熱器 １３ 第３逆止弁 １４ 冷媒ポンプ １５ 第３電磁弁 １６ 第２減圧機構 １７ 室外ファン 1 compressor 2 4-way switching valve 3 outdoor heat exchanger 4 first check valve 5 first pressure reducing mechanism 6 indoor heat exchanger 7 first solenoid valve 8 accumulator 9 second check valve 10 second solenoid valve 11 receiving Liquid container 12 Refrigerant heater 13 Third check valve 14 Refrigerant pump 15 Third solenoid valve 16 Second pressure reducing mechanism 17 Outdoor fan
Claims (1)
時および融雪時に運転される圧縮機、四方切換え弁、室
外側熱交換器、第１逆止弁、第１減圧機構、室内側熱交
換器、第１電磁弁、前記四方切換え弁、前記アキュムレ
ータを順次環状に連結し、低沸点の冷媒を作動媒体とし
て用いた冷媒循環回路を構成し、前記第１減圧機構と前
記室内側熱交換器との間で分岐し、前記室内側熱交換器
と前記第１電磁弁との間に至る管路に第２逆止弁、第２
電磁弁、受液器および暖房時に冷媒を加熱する冷媒加熱
器、第３逆止弁を直列に設け、前記受液器内部に暖房時
および融雪時に運転される冷媒ポンプを設け、前記冷媒
ポンプの吸入部は前記受液器内下部にあり、前記冷媒ポ
ンプの吐出管は前記冷媒加熱器の冷媒流入口に接続し、
前記第１減圧機構と前記室内側熱交換器との間で分岐
し、前記室外側熱交換器と前記第１逆止弁との間に至る
管路に暖房開始時のみ開く第３電磁弁および第２減圧機
構を直列に設け、前記第１逆止弁と前記第１減圧機構と
の間で分岐し、前記第２逆止弁と前記第２電磁弁との間
に至る配管を設け、前記室外側熱交換器に併設して前記
圧縮機が稼働する時に運転する室外ファンを設けた暖冷
房機。1. A compressor having an accumulator, which is operated at the time of cooling, at the start of heating and at the time of snow melting, a four-way switching valve, an outdoor heat exchanger, a first check valve, a first pressure reducing mechanism, an indoor heat exchange. Device, a first solenoid valve, the four-way switching valve, and the accumulator are sequentially connected in an annular shape to form a refrigerant circulation circuit using a low boiling point refrigerant as a working medium, and the first pressure reducing mechanism and the indoor heat exchanger are included. A second check valve, a second check valve, and a second check valve in a pipeline that branches between the indoor heat exchanger and the first electromagnetic valve.
A solenoid valve, a liquid receiver, a refrigerant heater that heats the refrigerant during heating, and a third check valve are provided in series, and a refrigerant pump that is operated during heating and during snow melting is provided inside the receiver. The suction part is in the lower part of the liquid receiver, the discharge pipe of the refrigerant pump is connected to the refrigerant inlet of the refrigerant heater,
A third solenoid valve that branches between the first pressure reducing mechanism and the indoor heat exchanger, and opens in a conduit extending between the outdoor heat exchanger and the first check valve only when heating is started, and A second pressure reducing mechanism is provided in series, a pipe that branches between the first check valve and the first pressure reducing mechanism and that extends between the second check valve and the second electromagnetic valve is provided, and A heating / cooling machine provided with an outdoor fan that is operated in parallel with an outdoor heat exchanger when the compressor operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19045192A JPH0634223A (en) | 1992-07-17 | 1992-07-17 | Room heater/cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19045192A JPH0634223A (en) | 1992-07-17 | 1992-07-17 | Room heater/cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0634223A true JPH0634223A (en) | 1994-02-08 |
Family
ID=16258353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19045192A Pending JPH0634223A (en) | 1992-07-17 | 1992-07-17 | Room heater/cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649499A (en) * | 2020-05-28 | 2020-09-11 | 南京天加环境科技有限公司 | Four-pipe cold and hot water unit of air-cooled heat pump |
-
1992
- 1992-07-17 JP JP19045192A patent/JPH0634223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649499A (en) * | 2020-05-28 | 2020-09-11 | 南京天加环境科技有限公司 | Four-pipe cold and hot water unit of air-cooled heat pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7305841B2 (en) | Cogeneration system | |
| US5291941A (en) | Airconditioner having selectively operated condenser bypass control | |
| US7240505B2 (en) | Cogeneration system | |
| US20060037348A1 (en) | Cogeneration system | |
| KR20030022280A (en) | Air conditioning system | |
| JP2003075018A (en) | Gas heat pump type air conditioning device | |
| CN101365917A (en) | Defrost system | |
| KR20130105460A (en) | Heat pump | |
| JPS6155018B2 (en) | ||
| JP4081801B2 (en) | Engine-driven air conditioner | |
| JP3370016B2 (en) | Heating equipment | |
| JPH0634223A (en) | Room heater/cooler | |
| JP2004224109A (en) | Heat pump device | |
| JP2009210159A (en) | Control method of gas heat pump type air conditioner, and gas heat pump type air conditioner | |
| JPH0478613A (en) | Heat pump type air conditioner | |
| JPH05223388A (en) | Room heater/cooler | |
| JPH06213540A (en) | Heating-and-cooling machine | |
| JP3295716B2 (en) | Engine driven heat pump device | |
| JP3626927B2 (en) | Gas heat pump type air conditioner | |
| JPH06272964A (en) | Heat pump hot-water apparatus | |
| JP3982893B2 (en) | Air conditioner | |
| JPH06123517A (en) | Engine heat pump system | |
| JPH10306954A (en) | Engine driven refrigerant compression circulation type heat transfer device | |
| JPH0821304A (en) | Snow melting device by waste heat of air conditioner | |
| JPH06193972A (en) | Air conditioner |