JPWO2020065730A1 - 空気調和装置 - Google Patents
空気調和装置 Download PDFInfo
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- JPWO2020065730A1 JPWO2020065730A1 JP2020547640A JP2020547640A JPWO2020065730A1 JP WO2020065730 A1 JPWO2020065730 A1 JP WO2020065730A1 JP 2020547640 A JP2020547640 A JP 2020547640A JP 2020547640 A JP2020547640 A JP 2020547640A JP WO2020065730 A1 JPWO2020065730 A1 JP WO2020065730A1
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- electric expansion
- expansion valve
- refrigerant
- heat exchanger
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- 239000003507 refrigerant Substances 0.000 claims abstract description 109
- 238000005057 refrigeration Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000004781 supercooling Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 description 26
- 238000001514 detection method Methods 0.000 description 13
- 230000005494 condensation Effects 0.000 description 7
- 238000009833 condensation Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000007812 deficiency Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/24—Low amount of refrigerant in the system
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1933—Suction pressures
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
図1に示すように、圧縮機1の吐出口に高圧側配管2を介して四方弁3が接続され、その四方弁3にガス側配管4を介して室外熱交換器5の一端が接続されている。この室外熱交換器5の他端に液側配管6を介して減圧器たとえば電動膨張弁(第1電動膨張弁)7の一端が接続され、その電動膨張弁7の他端に液側配管8を介してパックドバルブ9が接続されている。電動膨張弁7は、入力される駆動パルス信号の数に応じて開度Qoが変化するパルスモータバルブ(PMV)である。開度Qoは、“0”個の駆動パルス信号plsに対応する最小開度Qomin(全閉)から、“3000”個の駆動パルス信号plsに対応する最大開度Qomax(全開)まで、連続的に変化させることができる。
上記実施形態では、凝縮温度TGの値に対する冷媒温度TLの値の割合を冷媒循環量の不足率X(%)として検出したが、それに限らず、要は、凝縮温度TG、蒸発温度TU、冷媒温度TC2、冷媒温度TLのうち、いずれか1つまたは複数の要素を用いて検出すればよい。
Claims (6)
- 圧縮機、室外熱交換器、第1電動膨張弁を含む室外ユニットと、
それぞれ第2電動膨張弁および室内熱交換器を含む複数の室内ユニットと、
暖房運転時、前記圧縮機から吐出される冷媒を前記各室内熱交換器に流し、その各室内熱交換器から流出する冷媒を前記各第2電動膨張弁および前記第1電動膨張弁を通して前記室外熱交換器に流し、その前記室外熱交換器から流出する冷媒を前記圧縮機に戻す冷凍サイクルと、
前記室外ユニットおよび前記各室内ユニットの運転を制御するコントローラと、
を備え、
前記コントローラは、
前記各室内ユニットのうち、運転状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁を開き、運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁を全閉し、
前記冷凍サイクル中の冷媒循環量が不足の場合に、前記運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁の開度を徐々に増す、
ことを特徴とする空気調和装置。 - 前記コントローラは、
前記冷凍サイクル中の冷媒循環量の不足率を検出し、検出した不足率が閾値以上の場合に、前記運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁の開度を徐々に増す、
ことを特徴とする請求項1に記載の空気調和装置。 - 前記コントローラは、
前記冷凍サイクル中の冷媒循環量の不足率を検出し、検出した不足率が閾値以上の場合に、前記運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁の開度を所定開度を上限として徐々に増す、
ことを特徴とする請求項1に記載の空気調和装置。 - 前記コントローラは、
前記室外熱交換器における冷媒の過熱度が目標値となるように前記第1電動膨張弁の開度を制御し、
前記各室内ユニットのうち、運転状態の1つまたは複数の室内ユニットの前記室内熱交換器における冷媒の過冷却度が目標値となるように同室内ユニットの前記第2電動膨張弁の開度を制御する、
ことを特徴とする請求項1に記載の空気調和装置。 - 前記コントローラは、
前記冷凍サイクル中の冷媒循環量の不足率を検出し、検出した不足率が閾値以上で、かつ前記第1電動膨張弁の開度が設定値以上の場合に、前記運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁の開度を徐々に増す、
ことを特徴とする請求項4に記載の空気調和装置。 - 前記コントローラは、
前記冷凍サイクル中の冷媒循環量の不足率を検出し、検出した不足率が閾値以上で、かつ前記第1電動膨張弁の開度が設定値以上の場合に、前記運転停止状態の1つまたは複数の室内ユニットにおける前記第2電動膨張弁の開度を所定開度を上限として徐々に増す、
ことを特徴とする請求項4に記載の空気調和装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2018/035477 WO2020065730A1 (ja) | 2018-09-25 | 2018-09-25 | 空気調和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020065730A1 true JPWO2020065730A1 (ja) | 2021-08-30 |
JP7047120B2 JP7047120B2 (ja) | 2022-04-04 |
Family
ID=69952974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020547640A Active JP7047120B2 (ja) | 2018-09-25 | 2018-09-25 | 空気調和装置 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3859231A4 (ja) |
JP (1) | JP7047120B2 (ja) |
CN (1) | CN112771320B (ja) |
WO (1) | WO2020065730A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05312428A (ja) * | 1992-05-11 | 1993-11-22 | Daikin Ind Ltd | 空気調和装置の運転制御装置 |
JPH0835710A (ja) * | 1994-07-22 | 1996-02-06 | Mitsubishi Heavy Ind Ltd | マルチタイプ空気調和機の制御装置 |
JP2005114184A (ja) * | 2003-10-03 | 2005-04-28 | Hitachi Ltd | 冷媒充填装置及び冷媒充填方法 |
JP2007315750A (ja) * | 2007-08-27 | 2007-12-06 | Sanyo Electric Co Ltd | 空気調和装置 |
JP2009250554A (ja) * | 2008-04-09 | 2009-10-29 | Daikin Ind Ltd | 冷凍装置 |
WO2017026369A1 (ja) * | 2015-08-10 | 2017-02-16 | 三菱電機株式会社 | マルチ型空気調和装置 |
JP2017180882A (ja) * | 2016-03-28 | 2017-10-05 | 東芝キヤリア株式会社 | 空気調和装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4100853B2 (ja) * | 2000-02-14 | 2008-06-11 | 三洋電機株式会社 | 空気調和装置 |
KR100546616B1 (ko) * | 2004-01-19 | 2006-01-26 | 엘지전자 주식회사 | 멀티공기조화기의 제어방법 |
KR100550566B1 (ko) * | 2004-02-25 | 2006-02-10 | 엘지전자 주식회사 | 멀티형 히트 펌프의 제어 방법 |
CN100580347C (zh) * | 2005-04-07 | 2010-01-13 | 大金工业株式会社 | 空调装置的制冷剂量判定*** |
JP4730738B2 (ja) * | 2005-12-26 | 2011-07-20 | 日立アプライアンス株式会社 | 空気調和機 |
JP5138292B2 (ja) * | 2007-07-04 | 2013-02-06 | 三菱重工業株式会社 | 空気調和装置 |
CN103245148B (zh) * | 2013-05-24 | 2015-08-05 | 四川长虹空调有限公司 | 用于空调的油和冷媒控制装置及方法、空调***和空调 |
-
2018
- 2018-09-25 EP EP18935928.4A patent/EP3859231A4/en active Pending
- 2018-09-25 CN CN201880098056.1A patent/CN112771320B/zh active Active
- 2018-09-25 WO PCT/JP2018/035477 patent/WO2020065730A1/ja unknown
- 2018-09-25 JP JP2020547640A patent/JP7047120B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05312428A (ja) * | 1992-05-11 | 1993-11-22 | Daikin Ind Ltd | 空気調和装置の運転制御装置 |
JPH0835710A (ja) * | 1994-07-22 | 1996-02-06 | Mitsubishi Heavy Ind Ltd | マルチタイプ空気調和機の制御装置 |
JP2005114184A (ja) * | 2003-10-03 | 2005-04-28 | Hitachi Ltd | 冷媒充填装置及び冷媒充填方法 |
JP2007315750A (ja) * | 2007-08-27 | 2007-12-06 | Sanyo Electric Co Ltd | 空気調和装置 |
JP2009250554A (ja) * | 2008-04-09 | 2009-10-29 | Daikin Ind Ltd | 冷凍装置 |
WO2017026369A1 (ja) * | 2015-08-10 | 2017-02-16 | 三菱電機株式会社 | マルチ型空気調和装置 |
JP2017180882A (ja) * | 2016-03-28 | 2017-10-05 | 東芝キヤリア株式会社 | 空気調和装置 |
Also Published As
Publication number | Publication date |
---|---|
EP3859231A1 (en) | 2021-08-04 |
CN112771320B (zh) | 2022-08-02 |
JP7047120B2 (ja) | 2022-04-04 |
CN112771320A (zh) | 2021-05-07 |
EP3859231A4 (en) | 2022-05-18 |
WO2020065730A1 (ja) | 2020-04-02 |
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