JPS6152915B2 - - Google Patents
Info
- Publication number
- JPS6152915B2 JPS6152915B2 JP55151179A JP15117980A JPS6152915B2 JP S6152915 B2 JPS6152915 B2 JP S6152915B2 JP 55151179 A JP55151179 A JP 55151179A JP 15117980 A JP15117980 A JP 15117980A JP S6152915 B2 JPS6152915 B2 JP S6152915B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- heat exchanger
- indoor unit
- piping
- outdoor
- 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.)
- Expired
Links
- 239000003507 refrigerant Substances 0.000 claims description 53
- 238000011084 recovery Methods 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Landscapes
- Other Air-Conditioning Systems (AREA)
Description
【発明の詳細な説明】
本発明は冷房運転時の排熱を外気へ放出したり
他室へ送つて暖房に利用したりする切替え機能を
持つた熱回収形空冷空調装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat recovery type air-cooled air conditioner having a switching function for releasing waste heat during cooling operation into the outside air or sending it to another room for use in heating.
従来、熱交換器を具備する室外ユニツト１個に
対して複数個の熱交換器を具備する室内ユニツト
を有するものとしては、各ユニツトからの冷媒配
管を冷媒切替ユニツトに導き、ここに設けられた
電磁弁によつて室外ユニツトと室内ユニツトの組
み合せを変えるように構成されていたので、冷媒
切替えユニツトが複雑でありコストがかかる、電
磁弁を多用するので冷媒もれが生じ易い、１ユニ
ツトでの冷媒もれが他のユニツトに波及しやす
い、などの欠点があつた。 Conventionally, when an indoor unit is equipped with multiple heat exchangers for one outdoor unit equipped with a heat exchanger, refrigerant piping from each unit is led to a refrigerant switching unit, and a refrigerant switching unit installed here is used. Since the refrigerant switching unit was configured to change the combination of the outdoor unit and the indoor unit using a solenoid valve, it was complicated and costly, the frequent use of solenoid valves meant that refrigerant leaks were likely to occur, and it There were drawbacks such as refrigerant leakage easily spreading to other units.
本発明は従来の欠点を除去するため、圧縮機、
アキユムレータ、室内側熱交換器、膨張弁および
ドライヤフイルタを直列に配管して連結すると共
にフアンを設けて構成した室内ユニツト、室外側
熱交換器、フアンからなる室外ユニツト、熱交換
器とフアンよりなる少くとも１個のフアンを具備
する簡易室内ユニツト（以下単に簡易室内ユニツ
トという。）および前記簡易室内ユニツトと同数
の冷媒対冷媒熱交換器とより構成し、前記ドライ
ヤフイルタと室外側熱交換器を配管し連結し、一
方前記室内ユニツトの圧縮機の吐出側と前記冷媒
対冷媒熱交換器の凝縮側入口とを冷媒配管で接続
し、前記冷媒対冷媒熱交換器の凝縮側出口と他の
冷媒対冷媒熱交換器の凝縮側入口又は前記室外ユ
ニツトの室外側熱交換器入口とを冷媒配管により
連結し、前記冷媒対冷媒熱交換器の蒸発側出口と
前記簡易室内ユニツトの熱交換換器の入口とを冷
媒配管で接続し、前記簡易室内ユニツトの熱交換
器の出口と前記冷媒対冷媒熱交換器の蒸発側入口
とを冷媒配管で接続し、かつ、前記簡易室内ユニ
ツトを前記冷媒対冷媒熱交換器よりも高い位置に
配置し、前記簡易室内ユニツトと前記冷媒対冷媒
熱交換器間に冷媒自然循環回路を形成したことを
特徴とし、その目的は電磁弁を用いることなく冷
房と熱回収を簡単な構成で切替えるにある。 The present invention eliminates the drawbacks of the conventional compressor,
An indoor unit consisting of an accumulator, an indoor heat exchanger, an expansion valve, and a dryer filter connected in series together with a fan; an outdoor unit consisting of an outdoor heat exchanger and a fan; and an outdoor unit consisting of a heat exchanger and a fan. It is composed of a simple indoor unit (hereinafter simply referred to as a simple indoor unit) equipped with at least one fan and the same number of refrigerant-to-refrigerant heat exchangers as the simple indoor unit, and the dryer filter and the outdoor heat exchanger are On the other hand, the discharge side of the compressor of the indoor unit and the condensing side inlet of the refrigerant-to-refrigerant heat exchanger are connected by refrigerant piping, and the condensing side outlet of the refrigerant-to-refrigerant heat exchanger is connected to the other refrigerant. The condensing side inlet of the refrigerant heat exchanger or the outdoor heat exchanger inlet of the outdoor unit is connected by refrigerant piping, and the evaporation side outlet of the refrigerant-to-refrigerant heat exchanger and the heat exchanger inlet of the simple indoor unit are connected by refrigerant piping. The outlet of the heat exchanger of the simple indoor unit is connected to the evaporation side inlet of the refrigerant-to-refrigerant heat exchanger by refrigerant piping, and the simple indoor unit is connected to the refrigerant-to-refrigerant heat exchanger. The refrigerant natural circulation circuit is located between the simple indoor unit and the refrigerant-to-refrigerant heat exchanger by placing it at a higher position than the heat exchanger, and its purpose is to provide cooling and heat recovery without using a solenoid valve. can be switched with a simple configuration.
本発明を図面に基いて説明する。 The present invention will be explained based on the drawings.
第１図、第２図は本発明の実施例で、第１図は
熱交換器を具備し圧縮機を組込んだ室内ユニツト
を冷房運転した排熱を熱交換器、フアンからなる
室外ユニツトから排出する状態を、第２図は室内
ユニツトを冷房運転した排熱を他の圧縮機を具備
しない熱交換器とフアンからなる簡易室内ユニツ
トへ排出している状態を、示す図である。 Figures 1 and 2 show examples of the present invention, and Figure 1 shows how an indoor unit equipped with a heat exchanger and a compressor is operated for cooling, and the exhaust heat is transferred from an outdoor unit consisting of a heat exchanger and a fan. FIG. 2 is a diagram showing a state in which exhaust heat from an indoor unit being operated for cooling is being discharged to a simple indoor unit consisting of a heat exchanger and a fan without a compressor.
図において、１は室内ユニツト、２は室外ユニ
ツト、３，４は配管、５，６は冷媒対冷媒の熱交
換器、７は膨張弁、８はドライヤフイルタ、９は
圧縮機、１０はアキユムレータ、１１は室内側熱
交換機、１２は配管、１３はフアン、１４は室外
側熱交換器、１５，１６，１７は配管、１８，２
０，２２はフアン、１９，２１は熱交換器、２
３，２４は冷媒液ポンプ、ａ，ｂは簡易室内ユニ
ツトを示す。室内ユニツト１は膨張弁７、ドライ
ヤフイルタ８、圧縮機９、アキユムレータ１０、
室内側熱交換器１１、およびフアン１３で室内ユ
ニツト１を、室外側熱交換器１４とフアン１８で
室外ユニツト２を、熱交換器１９、フアン２０で
簡易室内ユニツトを構成する。 In the figure, 1 is an indoor unit, 2 is an outdoor unit, 3 and 4 are pipes, 5 and 6 are refrigerant-to-refrigerant heat exchangers, 7 is an expansion valve, 8 is a dryer filter, 9 is a compressor, 10 is an accumulator, 11 is an indoor heat exchanger, 12 is a pipe, 13 is a fan, 14 is an outdoor heat exchanger, 15, 16, 17 is a pipe, 18, 2
0, 22 are fans, 19, 21 are heat exchangers, 2
3 and 24 are refrigerant liquid pumps, and a and b are simple indoor units. The indoor unit 1 includes an expansion valve 7, a dryer filter 8, a compressor 9, an accumulator 10,
The indoor heat exchanger 11 and fan 13 constitute an indoor unit 1, the outdoor heat exchanger 14 and fan 18 constitute an outdoor unit 2, and the heat exchanger 19 and fan 20 constitute a simple indoor unit.
本発明の熱回収形空冷空調装置は次のように構
成される。 The heat recovery type air-cooled air conditioner of the present invention is configured as follows.
圧縮機９、アキユムレータ１０および室内熱交
換器１１の一端に順に配管して連結し、室内熱交
換器１１の他端には膨張弁７、ドライヤフイルタ
８を順に配管して連結し、ドライヤフイルタ８を
室外側熱交換器１４の一端に配管して連結し、圧
縮機９と冷媒対冷媒の熱交換器５，６と更に熱交
換器６と室外側熱交換器１４の他端間を配管連結
し、室内ユニツト１と室外ユニツト２間に配管し
て冷媒の循環通路を構成する。一方、熱交換器５
に熱交換器１９とを配管３，４により閉回路にな
るよう連結し、フアン２０を設ける。熱交換器６
と熱交換器２１とを配管１５，１６により閉回路
になるよう連結し、フアン２２を設ける。 A compressor 9, an accumulator 10, and one end of an indoor heat exchanger 11 are connected by piping in this order, and an expansion valve 7 and a dryer filter 8 are connected in order by piping to the other end of the indoor heat exchanger 11. is connected to one end of the outdoor heat exchanger 14 by piping, and the compressor 9 and the refrigerant-to-refrigerant heat exchangers 5 and 6, and further between the heat exchanger 6 and the other end of the outdoor heat exchanger 14 are connected by piping. However, piping is connected between the indoor unit 1 and the outdoor unit 2 to form a refrigerant circulation passage. On the other hand, heat exchanger 5
A fan 20 is connected to the heat exchanger 19 through piping 3 and 4 to form a closed circuit. heat exchanger 6
and a heat exchanger 21 are connected through pipes 15 and 16 to form a closed circuit, and a fan 22 is provided.
以下本発明の熱回収形空冷空調装置の動作を順
を追つて説明する。 The operation of the heat recovery type air-cooled air conditioner of the present invention will be explained below in order.
第１図で圧縮機９より出た高圧冷媒ガスは配管
１２を経て熱交換器５，６を通り室外ユニツト２
へ入る。このとき簡易室内ユニツトａ，ｂで暖房
要求が無くフアン２０，２２が動いていなければ
冷媒ガスは単に熱交換器５，６を通るだけであ
る。 In FIG. 1, the high-pressure refrigerant gas discharged from the compressor 9 passes through the pipe 12 and the heat exchangers 5 and 6 to the outdoor unit 2.
Enter. At this time, if there is no heating request in the simple indoor units a and b and the fans 20 and 22 are not operating, the refrigerant gas simply passes through the heat exchangers 5 and 6.
室内ユニツト１では室外側熱交換器１４を通つ
て放熱し、冷媒ガスが凝縮して室内ユニツト１へ
戻る。室内ユニツト１ではドライヤフイルタ８、
膨張弁７を通つて室内側熱交換器１１で蒸発しア
キユムレータ１０へ入り圧縮機９へ戻る。 In the indoor unit 1, heat is radiated through the outdoor heat exchanger 14, and the refrigerant gas is condensed and returned to the indoor unit 1. In indoor unit 1, dryer filter 8,
It passes through the expansion valve 7, evaporates in the indoor heat exchanger 11, enters the accumulator 10, and returns to the compressor 9.
第２図で圧縮機９から出た高圧冷媒ガスは配管
１２を経て熱交換器５，６へ入る。このとき簡易
室内ユニツトａ，ｂで暖房要求があり、フアン２
０，２２が動いていれば、簡易室内ユニツトａと
熱交換器５および配管３，４から構成される閉回
路内の冷媒は簡易室内ユニツトａで凝縮し配管４
を通つて熱交換器５に達し熱交換器５で熱交換に
より蒸発し簡易室内ユニツトａに戻る。この冷媒
の循環により配管１２より熱交換器５に入つた冷
媒は冷却され凝縮する。凝縮液および熱交換器５
で凝縮しなかつた冷媒ガスは配管１７を通つて熱
交換器６へ入り、簡易室内ユニツトｂのフアンが
動いていれば、冷媒ガスは冷却され凝縮する。 In FIG. 2, the high-pressure refrigerant gas discharged from the compressor 9 enters the heat exchangers 5 and 6 through the pipe 12. At this time, there is a heating request from simple indoor units a and b, and fan 2
0 and 22 are in operation, the refrigerant in the closed circuit consisting of the simple indoor unit a, the heat exchanger 5, and the pipes 3 and 4 is condensed in the simple indoor unit a, and the refrigerant is transferred to the pipe 4.
It reaches the heat exchanger 5 through the heat exchanger 5, where it evaporates through heat exchange and returns to the simple indoor unit a. Due to this circulation of the refrigerant, the refrigerant entering the heat exchanger 5 from the pipe 12 is cooled and condensed. Condensate and heat exchanger 5
The refrigerant gas that is not condensed in the step enters the heat exchanger 6 through the pipe 17, and if the fan of the simple indoor unit b is operating, the refrigerant gas is cooled and condensed.
閉回路、熱交換器５―配管３―簡易室内ユニツ
トａ―配管４―熱交換器５、内の冷媒は簡易室内
ユニツトａが熱交換器５より高くすれば冷媒ポン
プ２３が無くても自然循環する。閉回路、熱交換
器６―配管１５―簡易室内ユニツトｂ―配管１６
―熱交換器６、内の冷媒についても同様に簡易室
内ユニツトｂが熱交換器６より高くすれば自然循
環する。 In a closed circuit, heat exchanger 5 - piping 3 - simple indoor unit a - piping 4 - heat exchanger 5, the refrigerant in the simple indoor unit a can be naturally circulated even without the refrigerant pump 23 if the height of the simple indoor unit a is higher than that of the heat exchanger 5. do. Closed circuit, heat exchanger 6 - piping 15 - simple indoor unit b - piping 16
- Similarly, if the simple indoor unit b is placed higher than the heat exchanger 6, the refrigerant inside the heat exchanger 6 will circulate naturally.
凝縮液および熱交換器６で凝縮しなかつた冷媒
ガスは室外ユニツト２の室外側熱交換器１４へ入
る。熱交換器６で冷媒が全て凝縮していればフア
ン１８は動かさず、ガスが残つていればフアン１
８を動かして凝縮させ凝縮液は室内ユニツト１へ
送られ、ドライヤフイルタ８、膨張弁７、室内側
熱交換器１１、アキユムレータ１０を経て圧縮機
９へ戻る。 The condensate and the refrigerant gas that is not condensed in the heat exchanger 6 enters the outdoor heat exchanger 14 of the outdoor unit 2. If all the refrigerant has condensed in the heat exchanger 6, the fan 18 will not operate, and if there is gas remaining, the fan 1 will not operate.
The condensed liquid is sent to the indoor unit 1, and returns to the compressor 9 via the dryer filter 8, the expansion valve 7, the indoor heat exchanger 11, and the accumulator 10.
以上説明したように、本発明の熱回収形空冷空
調装置は電磁弁の切替え動作なしで、室内外のユ
ニツトの組み合せを変えられるので次の作用効果
を生ずる。 As explained above, the heat recovery type air-cooled air conditioner of the present invention can change the combination of indoor and outdoor units without switching solenoid valves, and therefore produces the following effects.
(1) 室内ユニツト１の冷房運転を行うとき室内で
除去した排熱を室外ユニツトで屋外に排出した
り、簡易室内ユニツトａ，ｂへ排出し、ａ，ｂ
のある室を暖房できる。(1) When the indoor unit 1 performs cooling operation, the waste heat removed indoors is discharged outdoors by the outdoor unit, or is discharged to the simple indoor units a and b.
Can heat a room.
(2) 動作切り替えを行うのに室内ユニツト１と室
外ユニツト２の間の配管に熱交換器を介在させ
室外ユニツトや室内ユニツトのフアンをオン、
オフさせるだけでよいので、配管に電磁弁を付
けるのに比べ装置が単純で故障が少ない。(2) To switch operations, a heat exchanger is interposed in the piping between indoor unit 1 and outdoor unit 2, and the fans of the outdoor unit and indoor unit are turned on.
Because all you have to do is turn it off, the device is simpler and less likely to break down compared to attaching a solenoid valve to the piping.
(3) 従来の空冷空調機に熱交換器と室内ユニツト
を付加するだけで熱回収形空冷空調機にでき
る。(3) A heat recovery type air-cooled air conditioner can be made by simply adding a heat exchanger and an indoor unit to a conventional air-cooled air conditioner.
本発明の装置は、高発熱通信機室と事務室を有
する電話局舎のように冬期冷房を行う室と暖房を
行う室が同時にあるような建物の空調装置として
有効である。この場合、事務室に簡易室内ユニツ
トａ，ｂを高発熱通信機室に室内ユニツト１を設
置すればよい。 The device of the present invention is effective as an air conditioner for a building where there are rooms that are cooled and heated at the same time in the winter, such as a telephone office building that has a high heat generation communication equipment room and an office. In this case, the simple indoor units a and b may be installed in the office and the indoor unit 1 may be installed in the high heat generation communication equipment room.
第１図、第２図は本発明の熱回収形空冷空調装
置の配置図、第１図は室内ユニツトの排熱を室外
ユニツトから排出する状態を、第２図は室内ユニ
ツトの排熱を簡易室内ユニツトに排出する状態
図、を示す。
１：室内ユニツト、２：室外ユニツト、３，
４，１２，１５，１６，１７：配管、５，６：冷
媒対冷媒熱交換器、７：膨張弁、８：ドライヤフ
イルタ、９：圧縮機、１０：アキユムレータ、１
１：室内側熱交換器、１３，１８，２０，２２：
フアン、１４：室外側熱交換器、１９，２１：室
内側熱交換器、ａ，ｂ：簡易室内ユニツト。
Figures 1 and 2 are layout diagrams of the heat recovery type air-cooling air conditioner of the present invention, Figure 1 shows a state in which the exhaust heat of the indoor unit is discharged from the outdoor unit, and Figure 2 shows a simplified diagram of the exhaust heat of the indoor unit. A state diagram of discharging to the indoor unit is shown. 1: Indoor unit, 2: Outdoor unit, 3,
4, 12, 15, 16, 17: Piping, 5, 6: Refrigerant-to-refrigerant heat exchanger, 7: Expansion valve, 8: Dryer filter, 9: Compressor, 10: Accumulator, 1
1: Indoor heat exchanger, 13, 18, 20, 22:
Fan, 14: outdoor heat exchanger, 19, 21: indoor heat exchanger, a, b: simple indoor unit.
Claims (1)
膨張弁、およびドライフイルタを直列に配管して
連結すると共にフアンを設けて構成した室内ユニ
ツト、室外側熱交換器、フアンからなる室外ユニ
ツト、熱交換器とフアンよりなる少くとも１個の
フアンを具備する簡易室内ユニツト（以下単に簡
易室内ユニツトという。）、および前記簡易室内ユ
ニツトと同数の冷媒対冷媒熱交換器とより構成
し、前記ドライヤフイルタと室外側熱交換器を配
管し連結し、一方、前記室内ユニツトの圧縮機の
吐出側と前記冷媒対冷媒熱交換器の凝縮側入口と
を冷媒配管で接続し、前記冷媒対冷媒熱交換器の
凝縮側出口と他の冷媒対冷媒熱交換器の凝縮側入
口又は前記室外ユニツトの室外側熱交換器入口と
を冷媒配管により連結し、前記冷媒対冷媒熱交換
器の蒸発側出口と前記簡易室内ユニツトの熱交換
器の入口とを冷媒配管で接続し、前記簡易室内ユ
ニツトの熱交換器の出口と前記冷媒対冷媒熱交換
器の蒸発側入口とを冷媒配管で接続し、かつ、前
記簡易室内ユニツトを前記冷媒対冷媒熱交換器よ
りも高い位置に配置し、前記簡易室内ユニツトと
前記冷媒対冷媒熱交換器間に冷媒自然循環回路を
形成したことを特徴とする熱回収形空冷空調装
置。1 Compressor, accumulator, indoor heat exchanger,
An indoor unit consisting of an expansion valve and a dry filter connected by piping in series and a fan; an outdoor unit consisting of an outdoor heat exchanger and a fan; and at least one fan consisting of a heat exchanger and a fan. A simple indoor unit (hereinafter simply referred to as a simple indoor unit) and the same number of refrigerant-to-refrigerant heat exchangers as the simple indoor unit, the dryer filter and the outdoor heat exchanger are connected by piping, and one , the discharge side of the compressor of the indoor unit and the condensing side inlet of the refrigerant-to-refrigerant heat exchanger are connected by refrigerant piping, and the condensing-side outlet of the refrigerant-to-refrigerant heat exchanger is connected to the other refrigerant-to-refrigerant heat exchanger. The condensing side inlet of the outdoor unit or the outdoor heat exchanger inlet of the outdoor unit are connected by refrigerant piping, and the evaporation side outlet of the refrigerant-to-refrigerant heat exchanger and the inlet of the heat exchanger of the simple indoor unit are connected by refrigerant piping. the outlet of the heat exchanger of the simple indoor unit and the evaporation side inlet of the refrigerant-to-refrigerant heat exchanger are connected by refrigerant piping, and the simple indoor unit is higher than the refrigerant-to-refrigerant heat exchanger. 1. A heat recovery type air-cooled air conditioner, characterized in that the refrigerant natural circulation circuit is formed between the simple indoor unit and the refrigerant-to-refrigerant heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55151179A JPS5774555A (en) | 1980-10-28 | 1980-10-28 | Heat recovery type air cooler conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55151179A JPS5774555A (en) | 1980-10-28 | 1980-10-28 | Heat recovery type air cooler conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5774555A JPS5774555A (en) | 1982-05-10 |
| JPS6152915B2 true JPS6152915B2 (en) | 1986-11-15 |
Family
ID=15513018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55151179A Granted JPS5774555A (en) | 1980-10-28 | 1980-10-28 | Heat recovery type air cooler conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5774555A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5360765B2 (en) * | 2009-11-05 | 2013-12-04 | 高砂熱学工業株式会社 | Hydrogen storage alloy tank system |
-
1980
- 1980-10-28 JP JP55151179A patent/JPS5774555A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5774555A (en) | 1982-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6945065B2 (en) | Cooling/heating system of air conditioner | |
| CN101490483B (en) | Ventilating and air conditioning apparatus | |
| CN108679870A (en) | A kind of warm and humid sub-control air-conditioning system with Fresh air handing function | |
| CN102914011A (en) | Heat recovery air-conditioning machine set | |
| KR100991809B1 (en) | Ventilating system having heat pump | |
| JPH1082566A (en) | Air cooled packager-conditioner | |
| US7069740B2 (en) | Accumulator and air conditioning system using the same | |
| KR20040041272A (en) | Indoor unit for air conditioner | |
| KR100728590B1 (en) | Power saving and high performance heat pump vantilation system | |
| JPS6152915B2 (en) | ||
| CN108679869A (en) | A kind of complete straight swollen warm and humid sub-control air-conditioning system of type of list refrigerant circuit | |
| JPS609220B2 (en) | Air conditioning system for high ceiling spaces | |
| JPH09222244A (en) | Humidify control air conditioner | |
| JPH035642A (en) | Ventilation type air conditioner | |
| JP3481818B2 (en) | Absorption cooling and heating system and cooling and heating system | |
| CN210688590U (en) | New fan | |
| CN112594799B (en) | Fresh air dehumidification all-in-one | |
| CN213300344U (en) | Novel air-water radiation air conditioning system | |
| CN215872548U (en) | Heat management system of outdoor base station cabinet integrating storage battery compartment, equipment compartment and power supply compartment | |
| JP3502155B2 (en) | Thermal storage type air conditioner | |
| JP2004144401A (en) | Waste heat recovering device | |
| CN210568862U (en) | Passive room dehumidification air conditioning unit | |
| JP4245733B2 (en) | Air conditioning system for high sensible heat load treatment | |
| KR20040090129A (en) | Multi-air conditioner capable of heating and cooling simultaneously for building | |
| JPS6172945A (en) | Air conditioner |