JP4813534B2 - 空気調和装置 - Google Patents
空気調和装置 Download PDFInfo
- Publication number
- JP4813534B2 JP4813534B2 JP2008255057A JP2008255057A JP4813534B2 JP 4813534 B2 JP4813534 B2 JP 4813534B2 JP 2008255057 A JP2008255057 A JP 2008255057A JP 2008255057 A JP2008255057 A JP 2008255057A JP 4813534 B2 JP4813534 B2 JP 4813534B2
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- JP
- Japan
- Prior art keywords
- heat exchanger
- tube
- side heat
- refrigerant
- refrigerating machine
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Description
上記室外機(3)の室外回路(8)は、圧縮機(圧縮機構)(11)と四路切換弁(切換弁)(12)と膨張弁(膨張機構)(14)と室外熱交換器(熱源側熱交換器)(15)とを有している。
上記室内機(2)の室内回路(7)は、室内熱交換器(利用側熱交換器)(13)を有している。上記室内熱交換器(13)の一端は上記室内回路(7)のガス端に接続され、他端は上記室内回路(7)の液端にそれぞれ接続されている。
次に、本実施形態に係る空気調和装置の運転動作について説明する。この空気調和装置は、上述したように、上記四路切換弁(12)の切換動作で上記冷媒回路(10)を流れる冷媒の循環方向を可逆にすることにより、室内の冷暖房を行うことができる。
上記空気調和装置の冷房運転では、上述したように上記四路切換弁(12)が第1状態に設定される。この状態で、上記圧縮機(11)で臨界圧力以上まで圧縮された冷媒が該圧縮機(11)から吐出される。なお、上記圧縮機(11)からは、該圧縮機(11)の各摺動部の潤滑に利用された冷凍機油が、この超臨界圧の冷媒とともに吐出される。そして、この吐出された冷媒及び冷凍機油は、上記四路切換弁(12)を通過した後で上記室外熱交換器(15)に流入する。
本実施形態によれば、上記室外熱交換器(15)に平滑管(1)を用い、上記室内熱交換器(13)に内面溝付き管(6)を用いるようにしている。こうすると、この空気調和装置の冷房運転時に、上記室外熱交換器(15)における平滑管(1)の管内の油膜を、内周面に溝がある場合に比べて薄くすることができる。これにより、二酸化炭素が放熱しやすくなり、上記室外熱交換器(15)の放熱量を増加させることができる。
6 内面溝付き管
10 冷媒回路
11 圧縮機(圧縮機構)
12 四路切換弁(切換弁)
13 室内熱交換器(利用側熱交換器)
14 膨張弁(膨張機構)
15 室外熱交換器(熱源側熱交換器)
Claims (2)
- 二酸化炭素及び冷凍機油が封入されるとともに圧縮機構(11)と熱源側熱交換器(15)と膨張機構(14)と利用側熱交換器(13)とが順に接続されて超臨界冷凍サイクルを行う冷媒回路(10)を備え、上記冷媒回路(10)には該冷媒回路(10)を流れる二酸化炭素及び冷凍機油の循環方向を可逆にして熱源側熱交換器(15)が放熱器となり且つ利用側熱交換器(13)が蒸発器となる冷房運転と熱源側熱交換器(15)が蒸発器となり且つ利用側熱交換器(13)が放熱器となる暖房運転とを切り換える切換弁(12)が設けられている空気調和装置であって、
上記熱源側熱交換器(15)には平滑管(1)が用いられ、上記利用側熱交換器(13)には内面溝付き管(6)が用いられていることを特徴とする空気調和装置。 - 請求項1において、
上記平滑管(1)を流れる二酸化炭素及び冷凍機油は、その二酸化炭素及び冷凍機油の全体の質量流量に対する冷凍機油の質量流量の割合が0.3質量%以上であることを特徴とする空気調和装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008255057A JP4813534B2 (ja) | 2008-09-30 | 2008-09-30 | 空気調和装置 |
PCT/JP2009/004910 WO2010038403A1 (ja) | 2008-09-30 | 2009-09-28 | 空気調和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008255057A JP4813534B2 (ja) | 2008-09-30 | 2008-09-30 | 空気調和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010085029A JP2010085029A (ja) | 2010-04-15 |
JP4813534B2 true JP4813534B2 (ja) | 2011-11-09 |
Family
ID=42073185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008255057A Active JP4813534B2 (ja) | 2008-09-30 | 2008-09-30 | 空気調和装置 |
Country Status (2)
Country | Link |
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JP (1) | JP4813534B2 (ja) |
WO (1) | WO2010038403A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017044431A (ja) * | 2015-08-28 | 2017-03-02 | 日立アプライアンス株式会社 | ヒートポンプ式給湯機 |
CN105605821A (zh) * | 2016-01-25 | 2016-05-25 | 铁道第三勘察设计院集团有限公司 | 一种二氧化碳直膨空调装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0336496A (ja) * | 1989-06-30 | 1991-02-18 | Toshiba Corp | ヒートポンプ式空気調和機用熱交換器の冷媒管 |
JP3811116B2 (ja) * | 2001-10-19 | 2006-08-16 | 松下電器産業株式会社 | 冷凍サイクル装置 |
JP4386813B2 (ja) * | 2004-08-27 | 2009-12-16 | 株式会社コベルコ マテリアル銅管 | 蒸発器用内面溝付伝熱管 |
JP4826343B2 (ja) * | 2006-06-01 | 2011-11-30 | 日立電線株式会社 | ヒートポンプ式熱交換機器の冷媒用伝熱管およびそれを用いたガスクーラ |
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2008
- 2008-09-30 JP JP2008255057A patent/JP4813534B2/ja active Active
-
2009
- 2009-09-28 WO PCT/JP2009/004910 patent/WO2010038403A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2010085029A (ja) | 2010-04-15 |
WO2010038403A1 (ja) | 2010-04-08 |
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