JP2021012009A - 水量調整装置 - Google Patents
水量調整装置 Download PDFInfo
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- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- 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
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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
- F24F11/70—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
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- 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
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- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0025—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using heat exchange fluid storage tanks
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/004—Outdoor unit with water as a heat sink or heat source
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
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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
- F25B2500/00—Problems to be solved
- F25B2500/19—Calculation of parameters
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2515—Flow valves
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- 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
- F25B2700/2103—Temperatures near a heat exchanger
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- 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
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Abstract
Description
(1)冷凍サイクル装置1の構成
第1実施形態の冷凍サイクル装置1の全体構成の概略を図1に示す。図1は、冷媒回路2を中心に記載している。冷凍サイクル装置1は、冷暖房を行う空気調和装置、冷温水器などに用いることができる。冷凍サイクル装置1は、水冷式である。冷媒回路2を流れる冷媒は、熱源側熱交換器23において、水回路5を流れる水と熱交換を行う。
水量調整装置10は、水量調整弁11と、第1温度センサ12と、第2温度センサ13と、制御部40とを備える。
水量調整弁11の開度制御フローを、図2を用いて説明する。
(熱交換器の入口と出口の比エンタルピ差[kJ/kg])=(熱交換器の入口の比エンタルピ[kJ/kg])−(熱交換器の出口の比エンタルピ[kJ/kg])・・・(1)
(冷媒側能力[kW])=(冷媒循環量[kg/s])×(熱交換器の入口と出口の比エンタルピ差[kJ/kg])・・・(2)
(水量[m3/s])=(冷媒側能力[kW])/((出口水比熱[kJ/(kg・K)])×(出口水密度[kg/m3])×(水配管の出口温度[℃])−(入口水比熱[kJ/(kg・K)])×(入口水密度[kg/m3])×(水配管の入口温度[℃]))・・・(3)
(4−1)
本実施形態の水量調整装置10は、入口と出口の差圧が所定範囲内になるように回転数制御される循環ポンプ(51)によって、水回路5の水配管中の水を循環させ、冷媒回路(2)を流れる冷媒と、水配管を流れる水との間で熱交換器(23)において熱交換を行わせる冷凍サイクル装置(1)に備えられ、水配管を流れる水量を制御する。水量調整装置10は、水配管を流れる水量を調整する水量調整弁11と、熱交換器23の入口の水配管の温度を測定する第1温度センサ12と、熱交換器23の出口の水配管の温度を測定する第2温度センサ13と、第1温度センサ12の測定温度と第2温度センサ13の測定温度の差に基づいて、水量調整弁11の開度を制御する制御部40とを備える。
本実施形態の水量調整装置10においては、制御部40は、水回路5の水配管を流れる水量が所定範囲内になるように、水量調整弁11の開度を調整する(S104)。この水量は、直接測定したものではなく、演算により算出された(S103)ものである。
さらに、上記水量の演算(S103)は、冷媒の冷媒側能力(S102において演算)に基づいて演算されたものである。
本実施形態の水量調整装置10においては、水回路5の水配管を流れる水量が所定範囲内になるように、水量調整弁11の開度を調整(S104)した後で、熱源側熱交換器23の入口と出口の水配管の温度差に基づいて、水量調整弁11の開度を制御する(S105)。このように制御することにより、適切に、水回路5の水配管を流れる水量を制御できる。
(5−1)変形例1A
変形例1Aの水量調整装置10の構成は、第1実施形態と同じである。変形例1Aの水量調整弁11の開度制御方法は、ステップS1023の冷媒循環量の演算方法を除いて、第1実施形態と同じである。変形例1Aの冷媒循環量の演算方法について、説明する。
(冷媒循環量[kg/s])=(容積効率[%])×(ピストン押しのけ量[m3/rev])×(圧縮機回転数[rps])・・・(4)
2・・・・・・・冷媒回路
5・・・・・・・水回路
10・・・・・・水量調整装置
11・・・・・・水量調整弁
12・・・・・・第1温度センサ
13・・・・・・第2温度センサ
20・・・・・・熱源ユニット
23・・・・・・熱源側熱交換器
30a、30b・利用ユニット
40・・・・・・制御部
51・・・・・・循環ポンプ
Claims (7)
- 入口と出口の差圧が所定範囲内になるように回転数制御される循環ポンプ(51)によって、水配管中の水を循環させ、冷媒回路(2)を流れる冷媒と、水配管を流れる水との間で熱交換器(23)において熱交換を行わせる冷凍サイクル装置(1)において、水配管を流れる水量を制御する水量調整装置(10)であって、
水配管を流れる水量を調整する水量調整弁(11)と、
前記熱交換器の入口の水配管の温度を測定する第1温度センサ(12)と、
前記熱交換器の出口の水配管の温度を測定する第2温度センサ(13)と、
前記第1温度センサの測定温度と前記第2温度センサの測定温度の差に基づいて、前記水量調整弁の開度を制御する制御部(40)と、
を備えた、
水量調整装置。 - 前記制御部は、前記第1温度センサの測定温度と前記第2温度センサの測定温度の差が、所定範囲内に入るように、前記水量調整弁の開度を制御する、
請求項1に記載の水量調整装置。 - 前記制御部は、水配管を流れる水量が所定範囲内になるように、前記水量調整弁の開度を調整する、
請求項1または2に記載の水量調整装置。 - 前記制御部は、前記水量を、前記冷媒の冷媒側能力に基づいて演算する、
請求項3に記載の水量調整装置。 - 前記制御部は、前記冷媒の冷媒側能力を、前記冷媒の循環量と、前記熱交換器の冷媒配管の入口と出口におけるエンタルピ変化とに基づいて演算する、
請求項4に記載の水量調整装置。 - 前記制御部は、水配管を流れる水量が所定範囲内になるように、前記水量調整弁の開度を調整した後で、
前記第1温度センサの測定温度と前記第2温度センサの測定温度の差に基づいて、前記水量調整弁の開度を制御する、
請求項3から5のいずれか1項に記載の水量調整装置。 - 前記熱交換器(23)は、前記冷凍サイクル装置(1)の熱源側熱交換器であり、
前記制御部(40)および前記熱交換器は、前記冷凍サイクル装置の熱源ユニット(20)に配置されている、
請求項1〜6のいずれか1項に記載の水量調整装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2019127955A JP6844663B2 (ja) | 2019-07-09 | 2019-07-09 | 水量調整装置 |
EP20837122.9A EP3998436A4 (en) | 2019-07-09 | 2020-07-02 | DEVICE FOR ADJUSTING THE QUANTITY OF WATER |
PCT/JP2020/026076 WO2021006184A1 (ja) | 2019-07-09 | 2020-07-02 | 水量調整装置 |
CN202080049775.1A CN114096791A (zh) | 2019-07-09 | 2020-07-02 | 水量调节装置 |
US17/570,637 US11506435B2 (en) | 2019-07-09 | 2022-01-07 | Water regulator |
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JP2019127955A JP6844663B2 (ja) | 2019-07-09 | 2019-07-09 | 水量調整装置 |
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JP2021012009A true JP2021012009A (ja) | 2021-02-04 |
JP6844663B2 JP6844663B2 (ja) | 2021-03-17 |
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US (1) | US11506435B2 (ja) |
EP (1) | EP3998436A4 (ja) |
JP (1) | JP6844663B2 (ja) |
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WO2023135630A1 (ja) * | 2022-01-11 | 2023-07-20 | 三菱電機株式会社 | 空気調和装置 |
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US11125483B2 (en) * | 2016-06-21 | 2021-09-21 | Hill Phoenix, Inc. | Refrigeration system with condenser temperature differential setpoint control |
WO2018237340A1 (en) * | 2017-06-23 | 2018-12-27 | Johnson Controls Technology Company | BUILDING EQUIPMENT WITH PREDICTIVE CONTROL |
DE102017212131A1 (de) * | 2017-07-14 | 2019-01-17 | Efficient Energy Gmbh | Wärmepumpenanordnung mit einem steuerbaren Wärmetauscher und Verfahren zur Herstellung einer Wärmepumpenanordnung |
JP6589946B2 (ja) * | 2017-07-20 | 2019-10-16 | ダイキン工業株式会社 | 冷凍装置 |
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2019
- 2019-07-09 JP JP2019127955A patent/JP6844663B2/ja active Active
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2020
- 2020-07-02 CN CN202080049775.1A patent/CN114096791A/zh active Pending
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WO2023135630A1 (ja) * | 2022-01-11 | 2023-07-20 | 三菱電機株式会社 | 空気調和装置 |
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CN114096791A (zh) | 2022-02-25 |
US20220128285A1 (en) | 2022-04-28 |
US11506435B2 (en) | 2022-11-22 |
WO2021006184A1 (ja) | 2021-01-14 |
EP3998436A4 (en) | 2022-08-24 |
EP3998436A1 (en) | 2022-05-18 |
JP6844663B2 (ja) | 2021-03-17 |
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