JP6033500B2 - 空気調和装置の冷媒量設定方法 - Google Patents
空気調和装置の冷媒量設定方法 Download PDFInfo
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- 238000005057 refrigeration Methods 0.000 claims description 20
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Images
Classifications
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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- 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
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- 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
- 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
- F24F11/32—Responding to malfunctions or emergencies
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
-
- 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
- F24F2110/50—Air quality properties
-
- 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
- F25B2313/029—Control issues
- F25B2313/0293—Control issues related to the indoor fan, e.g. controlling speed
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
- F25B2400/121—Inflammable refrigerants using R1234
-
- 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
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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)
Description
本発明の実施の形態1に係る空気調和装置について説明する。図1は、本実施の形態に係る空気調和装置の概略構成を示す冷媒回路図である。なお、図1を含む以下の図面では、各構成部材の寸法の関係や形状等が実際のものとは異なる場合がある。
図7は、実験に用いた室内空間120の構成を示す平面図である。図7に示すように、室内空間120は、4m×4mの正方形状の平面形状を有する密閉された空間である。室内空間120の天井面の高さHcは2.5mである。すなわち、室内空間120の容積は40m3である。室内機1は、室内空間120における1つの壁面の左右方向中央部に沿って床面上に設置されている。室内機1の吹出口113の高さHoは1.5mである。冷媒としてはR32が用いられている。なお、R32の燃焼下限濃度(LFL;Lower Flammable Limit)は、0.306kg/m3(=14.4vol%)である。また、室内送風ファン7fは、室内機1内(筐体111内)の冷媒検知手段99で検知される冷媒濃度が3.6vol%(すなわち、LFLの1/4)まで上昇した場合に運転を開始するように設定した。
(1)総冷媒量を室内空間120全体の容積のLFLに相当する量に設定した場合、下部空間120aには可燃濃度域が形成されるおそれがあること。
(2)下部空間120aに可燃濃度域が形成されないようにするには、総冷媒量を下部空間120aの容積のLFLに相当する量未満に設定する必要があること。
本発明の実施の形態2に係る空気調和装置について説明する。本実施の形態に係る空気調和装置は、冷媒の封入量M、冷媒の燃焼下限濃度LFL、室内空間120の床面積A及び吹出口113の高さHoがM≧LFL×A×Hoの関係を満たすものである。
本発明は、上記実施の形態に限らず種々の変形が可能である。
例えば、上記実施の形態では、吹出口113及び吸込口112が室内機1の筐体111の前面に設けられているが、吹出口113及び吸込口112は筐体111の側面に設けられていてもよい。
Claims (2)
- 冷媒を循環させる冷凍サイクルと、
少なくとも前記冷凍サイクルの室内熱交換器を収容し、室内空間に設置される室内機と、
前記室内機を制御する制御部と、を有し、
前記冷媒は、大気圧下において空気よりも密度の大きい可燃性冷媒であり、
前記室内機は、送風ファンと、前記室内空間の空気を吸い込む吸込口と、前記吸込口から吸い込まれた空気を前記室内空間に吹き出す吹出口と、を有しており、
前記制御部は、前記冷媒の漏洩を検知したときに前記送風ファンを運転させるものである空気調和装置の冷媒量を設定する方法であって、
前記冷凍サイクルにおける前記冷媒の封入量をM[kg]とし、前記冷媒の燃焼下限濃度をLFL[kg/m3]とし、前記室内空間の床面積をA[m2]とし、前記室内空間の床面からの前記吹出口の高さをHo[m]としたとき、
前記封入量M、前記燃焼下限濃度LFL、前記床面積A及び前記高さHoが、
M<LFL×A×Ho
の関係を満たすように前記封入量Mを設定する空気調和装置の冷媒量設定方法。 - 前記床面積は、前記空気調和装置又は前記室内機の仕様としての適用床面積である請求項1に記載の空気調和装置の冷媒量設定方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/080481 WO2016079801A1 (ja) | 2014-11-18 | 2014-11-18 | 空気調和装置 |
JPPCT/JP2014/080481 | 2014-11-18 | ||
PCT/JP2015/074909 WO2016080050A1 (ja) | 2014-11-18 | 2015-09-02 | 空気調和装置 |
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JP2016154832A Division JP6095834B2 (ja) | 2014-11-18 | 2016-08-05 | 空気調和装置の冷媒量設定方法 |
JP2016154833A Division JP6093471B2 (ja) | 2014-11-18 | 2016-08-05 | 空気調和装置の冷媒量設定方法 |
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JP6033500B2 true JP6033500B2 (ja) | 2016-11-30 |
JPWO2016080050A1 JPWO2016080050A1 (ja) | 2017-04-27 |
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JP2016515162A Active JP6033500B2 (ja) | 2014-11-18 | 2015-09-02 | 空気調和装置の冷媒量設定方法 |
JP2016154832A Active JP6095834B2 (ja) | 2014-11-18 | 2016-08-05 | 空気調和装置の冷媒量設定方法 |
JP2016154833A Active JP6093471B2 (ja) | 2014-11-18 | 2016-08-05 | 空気調和装置の冷媒量設定方法 |
JP2017023042A Active JP6271053B2 (ja) | 2014-11-18 | 2017-02-10 | 空気調和装置 |
JP2017249050A Active JP6431174B2 (ja) | 2014-11-18 | 2017-12-26 | 空気調和装置 |
JP2018206530A Pending JP2019039666A (ja) | 2014-11-18 | 2018-11-01 | 空気調和装置 |
JP2019201338A Active JP6779355B2 (ja) | 2014-11-18 | 2019-11-06 | 空気調和装置の冷媒量設定方法 |
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JP2016154833A Active JP6093471B2 (ja) | 2014-11-18 | 2016-08-05 | 空気調和装置の冷媒量設定方法 |
JP2017023042A Active JP6271053B2 (ja) | 2014-11-18 | 2017-02-10 | 空気調和装置 |
JP2017249050A Active JP6431174B2 (ja) | 2014-11-18 | 2017-12-26 | 空気調和装置 |
JP2018206530A Pending JP2019039666A (ja) | 2014-11-18 | 2018-11-01 | 空気調和装置 |
JP2019201338A Active JP6779355B2 (ja) | 2014-11-18 | 2019-11-06 | 空気調和装置の冷媒量設定方法 |
Country Status (6)
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US (2) | US20170284718A1 (ja) |
EP (1) | EP3222941B1 (ja) |
JP (7) | JP6033500B2 (ja) |
CN (2) | CN107003051B (ja) |
AU (3) | AU2015351400B2 (ja) |
WO (2) | WO2016079801A1 (ja) |
Cited By (1)
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JP2016188758A (ja) * | 2014-11-18 | 2016-11-04 | 三菱電機株式会社 | 空気調和装置及び空気調和装置の冷媒量設定方法 |
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JP2017040381A (ja) * | 2015-08-17 | 2017-02-23 | ダイキン工業株式会社 | 空調室内機 |
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US11073715B2 (en) | 2016-09-27 | 2021-07-27 | AGC Inc. | Method for producing glass article, and glass article |
JP6689413B2 (ja) * | 2017-01-11 | 2020-04-28 | 三菱電機株式会社 | 冷却倉庫 |
US11060775B2 (en) | 2017-03-09 | 2021-07-13 | Lennox Industries Inc. | Method and apparatus for refrigerant leak detection |
KR20180104520A (ko) | 2017-03-13 | 2018-09-21 | 엘지전자 주식회사 | 공기 조화기 |
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JP6093471B2 (ja) | 2017-03-08 |
CN107003051A (zh) | 2017-08-01 |
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CN107003051B (zh) | 2020-01-24 |
WO2016079801A1 (ja) | 2016-05-26 |
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JPWO2016080050A1 (ja) | 2017-04-27 |
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AU2015351400A1 (en) | 2017-04-27 |
US20170284718A1 (en) | 2017-10-05 |
JP2017090041A (ja) | 2017-05-25 |
WO2016080050A1 (ja) | 2016-05-26 |
CN111207483A (zh) | 2020-05-29 |
AU2018278868A1 (en) | 2019-01-03 |
JP2016188757A (ja) | 2016-11-04 |
JP2016188758A (ja) | 2016-11-04 |
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JP6271053B2 (ja) | 2018-01-31 |
US11262097B2 (en) | 2022-03-01 |
AU2015351400B2 (en) | 2018-10-11 |
JP6095834B2 (ja) | 2017-03-15 |
AU2019261699A1 (en) | 2019-11-28 |
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