JP5968538B2 - 冷凍装置 - Google Patents
冷凍装置 Download PDFInfo
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- JP5968538B2 JP5968538B2 JP2015522395A JP2015522395A JP5968538B2 JP 5968538 B2 JP5968538 B2 JP 5968538B2 JP 2015522395 A JP2015522395 A JP 2015522395A JP 2015522395 A JP2015522395 A JP 2015522395A JP 5968538 B2 JP5968538 B2 JP 5968538B2
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- refrigerant
- evaporator
- compressor
- blower
- Prior art date
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- 238000005057 refrigeration Methods 0.000 title claims description 43
- 239000003507 refrigerant Substances 0.000 claims description 92
- 238000001816 cooling Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 18
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000001294 propane Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 description 12
- 230000007423 decrease Effects 0.000 description 10
- 239000002826 coolant Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F24F11/30—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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- F24F2110/40—Pressure, e.g. wind 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
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- 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
- F25B2400/16—Receivers
-
- 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
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
-
- 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
- F25B2600/11—Fan speed control
- F25B2600/111—Fan speed control of condenser fans
-
- 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
- F25B2600/11—Fan speed control
- F25B2600/112—Fan speed control of evaporator fans
-
- 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
- F25B2700/21—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
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
-
- 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)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air Conditioning Control Device (AREA)
Description
本発明の実施の形態1に係る冷凍装置について説明する。図1は、本実施の形態に係る冷凍装置1の概略構成を示す冷媒回路図である。本実施の形態では、冷凍装置1として、室外機(熱源機ユニット)と室内機(ユニットクーラ)とを備え、冷蔵庫内を保冷するクーリングユニットを例に挙げて説明する。図1に示すように、冷凍装置1は、圧縮機10、凝縮器20、絞り装置30及び蒸発器40が冷媒配管によってこの順に直列に接続された冷媒回路を有している。冷媒回路を循環させる冷媒としては、R32冷媒(単一冷媒)、又はR32冷媒を65重量%以上含む混合冷媒が用いられている。また、冷媒としては、HFO冷媒、プロパン、又はプロパンを含む混合冷媒が用いられていてもよい。
本発明の実施の形態2に係る冷凍装置について説明する。図4は、本実施の形態に係る冷凍装置2の概略構成を示す冷媒回路図である。なお、実施の形態1の冷凍装置1と同一の機能及び作用を有する構成要素については、同一の符号を付してその説明を省略する。
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、冷蔵庫80内を保冷するクーリングユニットを冷凍装置の例に挙げたが、本発明は、冷凍庫内を保冷するクーリングユニットや、クーリングユニット以外の冷凍装置にも適用できる。
Claims (5)
- 圧縮機、凝縮器、絞り装置及び蒸発器が接続されて、冷媒を循環させる冷媒回路と、
前記蒸発器を通過して冷却対象空間に吹き出される空気の流れを生成する蒸発器用送風機と、
少なくとも前記圧縮機及び前記蒸発器用送風機を制御する制御部と、
前記冷却対象空間の温度を検出し、前記温度の情報を前記制御部に出力する温度センサと、
前記凝縮器の下流側で前記絞り装置の上流側に設けられた受液器と、
前記受液器の下流側で前記絞り装置の上流側に設けられ、前記制御部の制御により開閉される開閉弁と、
前記圧縮機の吸入圧力を検出し、前記吸入圧力の情報を前記制御部に出力する圧力センサと、を備え、
前記冷媒として、R32冷媒、R32冷媒を65重量%以上含む混合冷媒、HFO冷媒、プロパン、又はプロパンを含む混合冷媒のいずれかが用いられるものであり、
前記制御部は、前記圧縮機及び前記蒸発器用送風機の双方を運転させる第1運転モードと、前記圧縮機を停止させて前記蒸発器用送風機を運転させる第2運転モードと、を実行可能であり、
前記制御部は、
前記第1運転モードの実行中において前記温度が所定の下限温度以下に低下したときに前記開閉弁を閉状態とし、前記開閉弁を閉状態とした後に前記吸入圧力が所定の圧力以下に低下したときに、前記第1運転モードに代えて前記第2運転モードを実行し、
前記第2運転モードの実行中において前記温度が所定の上限温度以上に上昇したときに、前記第2運転モードに代えて前記第1運転モードを実行するものであることを特徴とする冷凍装置。 - 前記第2運転モードは、前記蒸発器用送風機を連続運転させる運転モードであることを特徴とする請求項1に記載の冷凍装置。
- 前記第2運転モードは、前記蒸発器用送風機を間欠運転させる運転モードであることを特徴とする請求項1に記載の冷凍装置。
- 前記制御部は、前記圧縮機が停止した場合に、前記第2運転モードを実行することを特徴とする請求項1〜請求項3のいずれか一項に記載の冷凍装置。
- 前記冷却対象空間は、冷蔵庫内又は冷凍庫内の空間であることを特徴とする請求項1〜請求項4のいずれか一項に記載の冷凍装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/066658 WO2014203320A1 (ja) | 2013-06-18 | 2013-06-18 | 冷凍装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP5968538B2 true JP5968538B2 (ja) | 2016-08-10 |
JPWO2014203320A1 JPWO2014203320A1 (ja) | 2017-02-23 |
Family
ID=52104089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015522395A Active JP5968538B2 (ja) | 2013-06-18 | 2013-06-18 | 冷凍装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5968538B2 (ja) |
CN (1) | CN105308395B (ja) |
GB (1) | GB2528215B (ja) |
WO (1) | WO2014203320A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6537714B2 (ja) * | 2016-05-13 | 2019-07-03 | 三菱電機株式会社 | 空気調和機 |
CN112673223A (zh) * | 2018-09-11 | 2021-04-16 | 普和希控股公司 | 冷却装置 |
CN109489284A (zh) * | 2018-11-21 | 2019-03-19 | 齐力制冷系统(深圳)有限公司 | 一种自动售卖机制冷模块 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002195707A (ja) * | 2000-12-22 | 2002-07-10 | Mitsubishi Electric Corp | 冷凍サイクル装置 |
JP2003207259A (ja) * | 2002-01-15 | 2003-07-25 | Toshiba Corp | 冷蔵庫 |
JP2004077000A (ja) * | 2002-08-14 | 2004-03-11 | Toshiba Corp | 冷蔵庫 |
JP2004156830A (ja) * | 2002-11-06 | 2004-06-03 | Sharp Corp | 冷凍・冷蔵庫 |
JP2005016874A (ja) * | 2003-06-27 | 2005-01-20 | Matsushita Electric Ind Co Ltd | 冷凍冷蔵ユニットおよび冷蔵庫 |
JP2005141472A (ja) * | 2003-11-06 | 2005-06-02 | Matsushita Electric Ind Co Ltd | 自動販売機 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000329447A (ja) * | 1999-05-17 | 2000-11-30 | Matsushita Refrig Co Ltd | 冷蔵庫および除霜用ヒーター |
US20050086952A1 (en) * | 2001-09-19 | 2005-04-28 | Hikaru Nonaka | Refrigerator-freezer controller of refrigenator-freezer, and method for determination of leakage of refrigerant |
CN1314930C (zh) * | 2002-01-15 | 2007-05-09 | 株式会社东芝 | 具有对冷媒泄漏进行告警的告警装置的电冰箱 |
CN101539356A (zh) * | 2009-04-14 | 2009-09-23 | 天津大学 | 可燃型制冷剂防燃防爆系统和方法 |
CN102269447B (zh) * | 2011-07-14 | 2014-01-01 | 美的集团股份有限公司 | 一种使用可燃冷媒的空调器及其控制方法 |
-
2013
- 2013-06-18 CN CN201380077559.8A patent/CN105308395B/zh active Active
- 2013-06-18 GB GB1519349.3A patent/GB2528215B/en active Active
- 2013-06-18 WO PCT/JP2013/066658 patent/WO2014203320A1/ja active Application Filing
- 2013-06-18 JP JP2015522395A patent/JP5968538B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002195707A (ja) * | 2000-12-22 | 2002-07-10 | Mitsubishi Electric Corp | 冷凍サイクル装置 |
JP2003207259A (ja) * | 2002-01-15 | 2003-07-25 | Toshiba Corp | 冷蔵庫 |
JP2004077000A (ja) * | 2002-08-14 | 2004-03-11 | Toshiba Corp | 冷蔵庫 |
JP2004156830A (ja) * | 2002-11-06 | 2004-06-03 | Sharp Corp | 冷凍・冷蔵庫 |
JP2005016874A (ja) * | 2003-06-27 | 2005-01-20 | Matsushita Electric Ind Co Ltd | 冷凍冷蔵ユニットおよび冷蔵庫 |
JP2005141472A (ja) * | 2003-11-06 | 2005-06-02 | Matsushita Electric Ind Co Ltd | 自動販売機 |
Also Published As
Publication number | Publication date |
---|---|
GB2528215B (en) | 2018-08-01 |
GB201519349D0 (en) | 2015-12-16 |
CN105308395B (zh) | 2018-01-23 |
WO2014203320A1 (ja) | 2014-12-24 |
GB2528215A (en) | 2016-01-13 |
CN105308395A (zh) | 2016-02-03 |
JPWO2014203320A1 (ja) | 2017-02-23 |
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