EP2137467A1 - Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondant - Google Patents
Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondantInfo
- Publication number
- EP2137467A1 EP2137467A1 EP08723412A EP08723412A EP2137467A1 EP 2137467 A1 EP2137467 A1 EP 2137467A1 EP 08723412 A EP08723412 A EP 08723412A EP 08723412 A EP08723412 A EP 08723412A EP 2137467 A1 EP2137467 A1 EP 2137467A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- compressor
- outdoor
- discharged
- air conditioning
- 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.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims abstract description 115
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 22
- 229940002865 4-way Drugs 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
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
- 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
- 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
- F25B49/022—Compressor control arrangements
-
- 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
- F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor units
-
- 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
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
-
- 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
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
-
- 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
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02743—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using three four-way 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
- 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
- F25B2400/06—Several compression cycles arranged in parallel
-
- 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
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- 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
- F25B2600/02—Compressor control
- F25B2600/026—Compressor control by controlling unloaders
- F25B2600/0261—Compressor control by controlling unloaders external to 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2521—On-off valves controlled by pulse signals
-
- 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
-
- 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
Definitions
- each outdoor unit can perform a heating- dedicated operation or a cooling-dedicated operation.
- a heating-dedicated operation is where the outdoor heat exchangers of all the outdoor units function as evaporators
- the cooling-dedicated operation is where the outdoor heat exchangers of all the outdoor units function as condensers.
- FIG. 1 is a system diagram of a multi-unit air conditioning system capable of simultaneous cooling/heating according to present embodiments.
- EEV electronic expansion valve
- a branch pipe 119 extends from one side of a refrigerant pipe connecting the outlet of the compressor 111 and the inlet of the 4- way valve 112.
- the branch pipe 119 is also connected to a high pressure pipe 121 through which high temperature and high pressure gaseous refrigerant flows.
- a refrigerant pipe at the outlet of the outdoor heat exchanger 113 is connected to a liquid pipe 122 through which high temperature and high pressure liquid refrigerant flows.
- a low pressure pipe 123 through which low temperature and low pressure second-stage refrigerant flows, is connected to the refrigerant pipe between the outlet of the 4- way valve 112 and the inlet of the accumulator 114.
- the high pressure pipe 121, the liquid pipe 122, and the low pressure pipe 123 are connected to the distribution unit 200. That is, the distribution unit 200 includes a distribution part 210 storing high temperature and high pressure gaseous refrigerant, a second distribution part 220 storing high temperature and high pressure liquid refrigerant, and a third distribution part 230 storing low temperature and low pressure second-phase refrigerant.
- the second distribution part 220 and the third distribution part 230 are connected through an overcooling part 240.
- An EEV 241 is provided between the second distribution part 220 and the overcooling part 240.
- the combined pipe 221 passes through the second distribution part 220 as a double pipe, and connects to the third distribution part 230. Accordingly, the refrigerant that absorbs heat in a first stage while passing through the second sub cooling unit 520, combines at the combined pipe 221, and then absorbs heat in a second stage while passing through the second distribution part 220, and is converted to a second- phase refrigerant close to a gaseous, low temperature and low pressure state.
- the second sub cooling unit 520 concentrates at the second distribution part 220, and a portion of the refrigerant concentrated at the second distribution part 220 is branched and flows toward the indoor heat exchanger 311 operating in cooling mode.
- refrigerant that passes through the EEV 241 converts to second-phase refrigerant that is close to saturated gaseous refrigerant.
- the refrigerant that passes the second distribution part 220 flows through the combined pipe 221 and flows to the third distribution part 230.
- the discharged temperatures are controlled by opening a flow regulator 400 of a low pressure compressor.
- the discharged temperatures are controlled by closing a flow regulator 400 of a high pressure compressor.
- the flow regulators may be opened or closed one at a time, or may be opened or closed as a portion of the combined total.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070026291A KR100885566B1 (ko) | 2007-03-16 | 2007-03-16 | 공기 조화기의 제어방법 |
PCT/KR2008/001375 WO2008114952A1 (fr) | 2007-03-16 | 2008-03-11 | Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2137467A1 true EP2137467A1 (fr) | 2009-12-30 |
EP2137467A4 EP2137467A4 (fr) | 2011-10-26 |
Family
ID=39766036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08723412A Withdrawn EP2137467A4 (fr) | 2007-03-16 | 2008-03-11 | Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondant |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2137467A4 (fr) |
KR (1) | KR100885566B1 (fr) |
WO (1) | WO2008114952A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101910658B1 (ko) * | 2011-07-18 | 2018-10-23 | 삼성전자주식회사 | 멀티형 공기조화기 |
JP5976333B2 (ja) | 2012-02-13 | 2016-08-23 | 三菱重工業株式会社 | 空気調和装置及び空気調和装置の四方弁制御方法 |
KR101726073B1 (ko) | 2015-10-01 | 2017-04-11 | 엘지전자 주식회사 | 공기조화 시스템 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10281566A (ja) * | 1997-04-01 | 1998-10-23 | Mitsubishi Heavy Ind Ltd | ヒートポンプ式空気調和機の室外ユニット |
EP1526341A1 (fr) * | 2003-10-21 | 2005-04-27 | Samsung Electronics Co., Ltd. | Conditionneur d'air comprenant plusieurs unités et procédé de commande de celui-ci |
EP1589304A2 (fr) * | 2004-04-22 | 2005-10-26 | Lg Electronics Inc. | Appareil de commutation entre des conduites d'un dispositif de climatisation |
JP2006029761A (ja) * | 2004-06-15 | 2006-02-02 | Toshiba Corp | 冷蔵庫 |
EP1666806A2 (fr) * | 2004-12-06 | 2006-06-07 | LG Electronics, Inc. | Dispositif de climatisation à unités multiples et méthode de régulation pour celui-ci |
JP2006170529A (ja) * | 2004-12-16 | 2006-06-29 | Matsushita Electric Ind Co Ltd | 空気調和機 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3322684B2 (ja) * | 1992-03-16 | 2002-09-09 | 東芝キヤリア株式会社 | 空気調和機 |
JPH07120090A (ja) * | 1993-10-26 | 1995-05-12 | Toshiba Ave Corp | 空気調和機 |
KR100364535B1 (ko) * | 1999-11-25 | 2002-12-16 | 엘지전자 주식회사 | 냉난방 겸용 멀티형 공기조화기 |
-
2007
- 2007-03-16 KR KR1020070026291A patent/KR100885566B1/ko active IP Right Grant
-
2008
- 2008-03-11 WO PCT/KR2008/001375 patent/WO2008114952A1/fr active Application Filing
- 2008-03-11 EP EP08723412A patent/EP2137467A4/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10281566A (ja) * | 1997-04-01 | 1998-10-23 | Mitsubishi Heavy Ind Ltd | ヒートポンプ式空気調和機の室外ユニット |
EP1526341A1 (fr) * | 2003-10-21 | 2005-04-27 | Samsung Electronics Co., Ltd. | Conditionneur d'air comprenant plusieurs unités et procédé de commande de celui-ci |
EP1589304A2 (fr) * | 2004-04-22 | 2005-10-26 | Lg Electronics Inc. | Appareil de commutation entre des conduites d'un dispositif de climatisation |
JP2006029761A (ja) * | 2004-06-15 | 2006-02-02 | Toshiba Corp | 冷蔵庫 |
EP1666806A2 (fr) * | 2004-12-06 | 2006-06-07 | LG Electronics, Inc. | Dispositif de climatisation à unités multiples et méthode de régulation pour celui-ci |
JP2006170529A (ja) * | 2004-12-16 | 2006-06-29 | Matsushita Electric Ind Co Ltd | 空気調和機 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008114952A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20080084482A (ko) | 2008-09-19 |
WO2008114952A1 (fr) | 2008-09-25 |
EP2137467A4 (fr) | 2011-10-26 |
KR100885566B1 (ko) | 2009-02-24 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20091013 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
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DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20110922 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F25B 49/02 20060101ALI20110916BHEP Ipc: F25B 13/00 20060101ALI20110916BHEP Ipc: F24F 11/02 20060101AFI20110916BHEP |
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17Q | First examination report despatched |
Effective date: 20140523 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20141003 |