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 correspondant

Info

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Withdrawn
Application number
EP08723412A
Other languages
German (de)
English (en)
Other versions
EP2137467A4 (fr
Inventor
Tae-Hee Kwak
Il-Nahm Hwang
Ho-Jong Jeong
Seung-Yong Chang
Kyung-Won Seo
Chi-Woo Song
Jin-Ha Choi
Won-Chul Kang
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2137467A1 publication Critical patent/EP2137467A1/fr
Publication of EP2137467A4 publication Critical patent/EP2137467A4/fr
Withdrawn legal-status Critical Current

Links

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

La présente invention concerne un système de conditionnement d'air à plusieurs unités et un procédé de régulation correspondant permettant de réduire les écarts des températures de décharge provenant d'une pluralité de compresseurs fonctionnant en mode chauffage seul. Le procédé de régulation est capable de réduire le déséquilibre entre les températures de décharge et la concentration du réfrigérant entre les unités d'extérieur.
EP08723412A 2007-03-16 2008-03-11 Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondant Withdrawn EP2137467A4 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008114952A1 *

Also Published As

Publication number Publication date
KR100885566B1 (ko) 2009-02-24
KR20080084482A (ko) 2008-09-19
WO2008114952A1 (fr) 2008-09-25
EP2137467A4 (fr) 2011-10-26

Similar Documents

Publication Publication Date Title
US10830503B2 (en) Heat pump system with multiple operating modes
US9316421B2 (en) Air-conditioning apparatus including unit for increasing heating capacity
US20230092215A1 (en) Air conditioning system with capacity control and controlled hot water generation
JP3943092B2 (ja) 空気調和機及びその制御方法
EP2388532B1 (fr) Dispositif d'alimentation en eau chaude avec une pompe à chaleur
EP3159630B1 (fr) Climatiseur
KR20150074640A (ko) 공기조화 시스템 및 그 제어방법
CN110831796B (zh) 包括具有热交换器的制冷剂回路的用于车辆的制冷设备以及用于这种制冷设备的热交换器
JP4553761B2 (ja) 空気調和装置
JPWO2019053876A1 (ja) 空気調和装置
KR101754685B1 (ko) 히트펌프식 급탕장치
JP4785508B2 (ja) 空気調和装置
JP2023503192A (ja) 空気調和装置
US20210048216A1 (en) Air-conditioning apparatus
US7299648B2 (en) Refrigeration system of air conditioning apparatuses with bypass line between inlet and outlet of compressor
KR20210093560A (ko) 냉난방 및 급탕 동시형 공기조화시스템 및 그의 제어방법
WO2008114952A1 (fr) Système de conditionnement d'air à plusieurs unités et procédé de régulation correspondant
KR101372146B1 (ko) 난방능력이 향상된 멀티형 공기조화기
CN114719353B (zh) 恒温恒湿空调机及其控制方法
JP5279768B2 (ja) 空気調和装置
KR20140125141A (ko) 공기조화 시스템
KR101160351B1 (ko) 멀티 공기조화기 및 그 제어방법
CN112577101A (zh) 空调器及其控制方法
KR20040094101A (ko) 멀티 에어컨 시스템의 유량 가변형 바이패스 장치
EP3974745A1 (fr) Multiclimatiseur pour le chauffage, le refroidissement et la ventilation

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20091013

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

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110922

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 49/02 20060101ALI20110916BHEP

Ipc: F25B 13/00 20060101ALI20110916BHEP

Ipc: F24F 11/02 20060101AFI20110916BHEP

17Q First examination report despatched

Effective date: 20140523

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

18D Application deemed to be withdrawn

Effective date: 20141003