EP2562493B1 - Verfahren zur füllung eines klimaanlagen-kühlgerätes - Google Patents

Verfahren zur füllung eines klimaanlagen-kühlgerätes Download PDF

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Publication number
EP2562493B1
EP2562493B1 EP11771899.9A EP11771899A EP2562493B1 EP 2562493 B1 EP2562493 B1 EP 2562493B1 EP 11771899 A EP11771899 A EP 11771899A EP 2562493 B1 EP2562493 B1 EP 2562493B1
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EP
European Patent Office
Prior art keywords
refrigerant
pipe
amount
pipes
indoor units
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.)
Active
Application number
EP11771899.9A
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English (en)
French (fr)
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EP2562493A4 (de
EP2562493A1 (de
Inventor
Takahiro Kato
Atsushi Enya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Thermal Systems Ltd
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Mitsubishi Heavy Industries Thermal Systems Ltd
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Publication of EP2562493A1 publication Critical patent/EP2562493A1/de
Publication of EP2562493A4 publication Critical patent/EP2562493A4/de
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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
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/001—Charging refrigerant to a 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • 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
    • F25B2700/04—Refrigerant level

Definitions

  • an air conditioner having an automatic refrigerant injection function that enables a specified amount of refrigerant to be automatically injected into a refrigerant circuit and an air conditioner that enables refrigerant to be automatically injected into a refrigerant circuit while eliminating the work of inputting information about crossover pipes and that enables precise determination of the adequacy of the amount of the refrigerant have been proposed (for example, see PTLs 1 to 3).
  • the minimum required refrigerant amount is calculated on the basis thereof, the resulting amount of refrigerant is additionally injected in advance, and then the refrigerant is automatically injected by the automatic refrigerant injection function until the specified injection amount is reached, the specified amount of refrigerant, i.e., the amount that eventually needs to be injected, can be correctly injected without any excess or shortfall.
  • the amount of refrigerant is calculated by assuming the pipe diameter of the horizontal pipe and the pipe diameter of the vertical pipe to the position of the first branched portion to be the diameter determined from the model of the outdoor unit or from the measurement value of the refrigerant pipe closest thereto. Therefore, even if the pipe diameter of the horizontal pipe and the pipe diameter of the vertical pipe to the position of the first branched portion are unknown, because the horizontal pipe and the vertical pipe are so-called main pipes, it can be reliably assumed that the refrigerant pipe closest to the outdoor unit is extended and serves as these pipes. Accordingly, by assuming the pipe diameter determined from the model of the outdoor unit or from the measurement value of the refrigerant pipe closest thereto to be the pipe diameters of the horizontal pipe and the vertical pipe, the minimum required refrigerant amount can be precisely calculated.
  • the amount of refrigerant may be calculated by assuming the pipe diameters of the branch pipes and/or the pipe diameter of the vertical pipe beyond the first branched portion to be the diameters determined from the models of the indoor units located farthest from the vertical pipe or from the measurement values of the refrigerant pipes closest thereto.
  • the amount of refrigerant may be calculated by assuming the pipe diameters of the branch pipes and/or the pipe diameter of the vertical pipe beyond the first branched portion to be the diameters determined from the models of the indoor units located farthest from the vertical pipe or from the measurement values of the refrigerant pipes closest thereto, even if the pipe diameters of the branch pipes and/or the pipe diameter of the vertical pipe beyond the first branched portion are unknown, the pipe diameters of the branch pipes and/or the pipe diameter of the vertical pipe can be reliably assumed to be, at least, those of the model of the indoor units located farthest from the vertical pipe or the pipe diameter of the refrigerant pipes connected to such indoor units.
  • the specifications (the gas-side pipe diameter (mm), the liquid-side pipe diameter (mm), and their pipe length (m)) of the refrigerant pipes (crossover pipes) 2 constituting this refrigerant circuit 3 are as follows:
  • a horizontal pipe 2A extending horizontally from the outdoor unit 10, installed on the roof of the building 40 or the like, along the roof has a gas-side pipe diameter of 28.58 mm, a liquid-side pipe diameter of 12.7 mm, and a pipe length of 10 m
  • a vertical pipe 2B extending from the horizontal pipe 2A to a ceiling on the second floor in the height direction of the building 40 has a gas-side pipe diameter of 28.58 mm, a liquid-side pipe diameter of 12.7 mm, and a pipe length of 20 m
  • a branch pipe 2C branched off from the vertical pipe 2B toward the indoor units 11 to 13 installed on the ceiling on the second floor has a gas-side pipe diameter of 19.05 mm, a liquid-side pipe diameter of
  • Steps S2 and S4 (after acquisition of the diagram) are intended for the people who can perfectly estimate the pipe size, length, etc.; the amount of refrigerant to be additionally injected is calculated on the basis thereof, and the specified amount of refrigerant is additionally charged (injected).
  • step S5 is intended for people who have not yet determined or cannot determine the pipe size, length, etc.; the pipe size, pipe length, and the like are estimated using the method described below, the minimum required refrigerant amount is calculated on the basis thereof, and the resulting amount of refrigerant is additionally charged.
  • the procedure proceeds to step S6, where an automatic operation is performed to additionally inject the refrigerant until the specified amount is reached, using the automatic refrigerant injection function of the air conditioner 1 described below.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Claims (5)

  1. Verfahren zur Einspritzung eines Klimaanlagen-(1)-Kühlmittels zum Einspritzen einer bestimmten Menge an Kühlmittel in einen geschlossenen Kühlmittelkreislauf (3), in dem eine Außeneinheit (10) und mehrere Inneneinheiten (11, 12, 13, 14, 15, 16) mittels Kühlmittelleitungen (2) verbunden sind,
    dadurch gekennzeichnet, dass die Leitungslängen und Leitungsdurchmesser der Kühlmittelleitungen (2), die die Außeneinheit (10) und die mehreren Inneneinheiten (11, 12, 13, 14, 15, 16), die in jeweiligen Stockwerken eines Bauwerks (40) installiert sind, verbinden, gemessen oder geschätzt werden, eine mindestens benötigte Kühlmittelmenge, die von der Klimaanlage (1) benötigt wird, auf der Basis der gemessenen oder geschätzten Leitungslängen und der Leitungsdurchmesser berechnet wird, die mindestens benötigte Kühlmittelmenge in den Kühlmittelkreislauf (3) vor einer automatischen Einspritzung eingespritzt wird, und dann eine verbleibende Menge des Kühlmittels automatisch durch eine automatische Kühlmitteleinspritzungsfunktion automatisch eingespritzt wird, bis die bestimmte Einspritzungsmenge erreicht ist.
  2. Verfahren zur Einspritzung eines Klimaanlagen-(1)-Kühlmittels nach Anspruch 1, wobei die mindestens benötigte Kühlmittelmenge zumindest auf der Basis der horizontalen Leitungs-(2A)-Länge und Leitungsdurchmesser der Kühlmittelleitung (2), die sich von der Installationsposition der Außeneinheit (10) zur Position einer vertikalen Leitung (2B, 2H) erstreckt, die sich entlang der Stockwerke des Bauwerks (40) erstreckt, der vertikalen Leitungs-(2A)-Längen und Leitungsdurchmesser der Kühlmittelleitung (2) zu den Positionen verzweigter Abschnitte auf den jeweiligen Stockwerken des Bauwerks (40), und der Längen und Leitungsdurchmesser von Verzweigungsleitungen (2C, 2D, 2E, 2F, 2G, 2H, 2I, 2J, 2K, 2L, 2M), die in geraden Linien die Positionen der vertikalen Leitung (2B, 2H) auf den jeweiligen Stockwerken und die Inneneinheiten (11, 12, 13, 14, 15, 16), die unter den mehreren Inneneinheiten am weitesten entfernt liegen, verbinden, berechnet wird.
  3. Verfahren zur Einspritzung eines Klimaanlagen-(1)-Kühlmittels nach Anspruch 2, wobei die mindestens benötigte Kühlmittelmenge durch Annahme, dass der Leitungsdurchmesser der horizontalen Leitung (2A) und der Leitungsdurchmesser der vertikalen Leitung (2B, 2H) zur Position des ersten verzweigten Abschnitts die Durchmesser sind, die aus dem Modell der Außeneinheit (10) oder aus dem Messwert der am nächsten liegenden Kühlmittelleitung (2) bestimmt sind.
  4. Verfahren zur Einspritzung eines Klimaanlagen-(1)-Kühlmittels nach Anspruch 2 oder 3, wobei die mindestens benötigte Kühlmittelmenge durch Annahme, dass die Leitungsdurchmesser der Verzweigungsleitungen (2C, 2D, 2E, 2F, 2G, 2H, 2I, 2J, 2K, 2L, 2M) und/oder die Leitungsdurchmesser der vertikalen Leitung (2B, 2H) über den ersten verzweigten Abschnitt hinaus die Durchmesser sind, die aus den Modellen der Inneneinheiten (11, 12, 13, 14, 15, 16), die am weitesten von der vertikalen Leitung (2B, 2H) entfernt liegen, oder aus den Messwerten der am nächsten liegenden Kühlmittelleitungen (2) bestimmt sind.
  5. Verfahren zur Einspritzung eines Klimaanlagen-(1)-Kühlmittels, wobei Kühlmittel unter Verwendung des Verfahrens nach einem der Ansprüche 1 bis 4 eingespritzt wird, wenn die Klimaanlage (1) durch ein Ersetzen der Außeneinheit (10) und Inneneinheiten (11, 12, 13, 14, 15, 16) der bestehenden Klimaanlage (1) und durch Verbinden der ersetzen Außeneinheit (10) und Inneneinheiten (11, 12, 13, 14, 15, 16) mit den bestehenden Kühlmittelleitungen (2) erneuert wird.
EP11771899.9A 2010-04-21 2011-04-12 Verfahren zur füllung eines klimaanlagen-kühlgerätes Active EP2562493B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010097957A JP5705453B2 (ja) 2010-04-21 2010-04-21 空気調和装置の冷媒充填方法
PCT/JP2011/059061 WO2011132564A1 (ja) 2010-04-21 2011-04-12 空気調和装置の冷媒充填方法

Publications (3)

Publication Number Publication Date
EP2562493A1 EP2562493A1 (de) 2013-02-27
EP2562493A4 EP2562493A4 (de) 2016-09-14
EP2562493B1 true EP2562493B1 (de) 2018-03-28

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EP11771899.9A Active EP2562493B1 (de) 2010-04-21 2011-04-12 Verfahren zur füllung eines klimaanlagen-kühlgerätes

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EP (1) EP2562493B1 (de)
JP (1) JP5705453B2 (de)
CN (1) CN102695930B (de)
WO (1) WO2011132564A1 (de)

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JP5642098B2 (ja) * 2012-02-21 2014-12-17 三菱電機株式会社 冷媒量推定装置及び冷媒量推定方法
CN104748287A (zh) * 2013-12-25 2015-07-01 珠海格力电器股份有限公司 选型软件构建及计算管长的方法及系统和中央空调器
CN104990320A (zh) * 2015-07-16 2015-10-21 广东美的暖通设备有限公司 一种冷媒自动充注的控制方法及系统
CN106766304B (zh) * 2016-12-22 2019-04-26 中科美菱低温科技股份有限公司 一种分离式低温制冷设备
JP2019011899A (ja) * 2017-06-30 2019-01-24 株式会社富士通ゼネラル 空気調和装置
CN113932503B (zh) * 2021-11-24 2023-04-07 宁波奥克斯电气股份有限公司 一种制冷剂充注装置及控制方法
CN114674095B (zh) * 2022-03-16 2024-04-23 青岛海尔空调器有限总公司 空调器、用于控制空调冷媒的方法、装置和存储介质

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JPH0821675A (ja) * 1994-07-06 1996-01-23 Hitachi Ltd 空気調和機およびその冷媒量判定方法
JPH08200905A (ja) * 1995-01-20 1996-08-09 Hitachi Ltd 冷媒量の指示装置
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Also Published As

Publication number Publication date
CN102695930B (zh) 2016-04-13
WO2011132564A1 (ja) 2011-10-27
JP2011226715A (ja) 2011-11-10
EP2562493A4 (de) 2016-09-14
EP2562493A1 (de) 2013-02-27
CN102695930A (zh) 2012-09-26
JP5705453B2 (ja) 2015-04-22

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