PH12016500366A1 - Multi-stage centrifugal compressor and air conditioning unit - Google Patents

Multi-stage centrifugal compressor and air conditioning unit

Info

Publication number
PH12016500366A1
PH12016500366A1 PH12016500366A PH12016500366A PH12016500366A1 PH 12016500366 A1 PH12016500366 A1 PH 12016500366A1 PH 12016500366 A PH12016500366 A PH 12016500366A PH 12016500366 A PH12016500366 A PH 12016500366A PH 12016500366 A1 PH12016500366 A1 PH 12016500366A1
Authority
PH
Philippines
Prior art keywords
shaft
impellers
centrifugal compressor
stage centrifugal
conditioning unit
Prior art date
Application number
PH12016500366A
Inventor
Zhong Ruixing
Xia Guanghui
Liu Hua
Zhang Zhiping
Jiang Nan
Xie Rong
Yan Xiubing
Wang Hongxing
Original Assignee
Gree Electric Appliances Inc Zhuhai
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 Gree Electric Appliances Inc Zhuhai filed Critical Gree Electric Appliances Inc Zhuhai
Publication of PH12016500366A1 publication Critical patent/PH12016500366A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0238—Details or means for fluid reinjection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/053—Shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F04D29/286—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • 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
    • F25B31/00—Compressor 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
    • F25B33/00—Boilers; Analysers; Rectifiers
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A multi-stage centrifugal compressor and an air conditioning unit are disclosed. The multi-stage centrifugal compressor comprises a power part and an impeller part. The power part comprises a motor (6), the shaft of which comprises a first end and a second end. The impeller part comprises N impellers, wherein N is more than or equal to 2 and less than 10. When N is an even, the number of the impellers on the first end of the shaft is equal to that of the impellers on the second end of the shaft. When N is a singular, the number of the impellers on the first end of the shaft is one more than that of the impellers on the second end of the shaft. The first-stage impeller farthest away from the motor (6) is arranged at the first end of the shaft. The other impellers at the first end of the shaft are arranged in ascending order. The N-stage impeller nearest to the motor (6) is arranged at the second end of the shaft. The other impellers at the second end of the shaft are arranged in descending order. Air outlets of the impellers at the first end of the shaft are communicated with air inlets of the impellers at the second end of the shaft through connecting pipes so that the pressure ratio and the energy efficiency are increased.
PH12016500366A 2013-08-26 2016-02-24 Multi-stage centrifugal compressor and air conditioning unit PH12016500366A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310377356.2A CN104421188A (en) 2013-08-26 2013-08-26 Multistage centrifugal compressor and air conditioning unit
PCT/CN2014/084414 WO2015027825A1 (en) 2013-08-26 2014-08-14 Multi-stage centrifugal compressor and air conditioning unit

Publications (1)

Publication Number Publication Date
PH12016500366A1 true PH12016500366A1 (en) 2016-05-02

Family

ID=52585546

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12016500366A PH12016500366A1 (en) 2013-08-26 2016-02-24 Multi-stage centrifugal compressor and air conditioning unit

Country Status (6)

Country Link
US (1) US20160177954A1 (en)
EP (1) EP3040559A4 (en)
JP (1) JP2016532053A (en)
CN (1) CN104421188A (en)
PH (1) PH12016500366A1 (en)
WO (1) WO2015027825A1 (en)

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* Cited by examiner, † Cited by third party
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CN105221463B (en) * 2015-10-14 2017-10-20 西安交通大学 Two-stage big flow oblique flow centrifugation combination compressor with cascade EDFA
CN105650005A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Symmetrically arranged centrifugal compressor
CN106015032B (en) * 2016-06-28 2018-05-22 杭州万辰机电科技有限公司 Centrifugal compressor
CN106895529A (en) * 2017-04-10 2017-06-27 深圳沃海森科技有限公司 The centrifugal compressor cooling water air conditioner unit of multistage regulation
CN108425859B (en) * 2018-01-29 2024-08-27 固耐重工（苏州）有限公司 Multistage compression structure of magnetic suspension high-power high-speed centrifugal machine
CN110836128A (en) * 2018-08-19 2020-02-25 传孚科技（厦门）有限公司 Gas power device
CN111365261A (en) * 2018-12-25 2020-07-03 珠海格力电器股份有限公司 Multi-split air conditioning system
CN110307660B (en) * 2019-06-26 2020-06-09 珠海格力电器股份有限公司 Multi-stage compression air conditioning system and control method thereof
CN111928507B (en) * 2020-09-09 2024-05-24 珠海格力电器股份有限公司 Refrigerant circulation system, control method and air conditioning unit

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DE1035669B (en) * 1954-08-09 1958-08-07 Frantisek Wergner Process for operating a compressor cooling system with at least two-stage compression of a refrigerant circulating in the system and a compressor cooling system for carrying out the process
US2897659A (en) * 1954-08-09 1959-08-04 Ckd Stalingrad Narodni Podnik Apparatus for gas and liquid cooling in compressor plants with two- or multistage cooling circuit
US3805547A (en) * 1972-11-21 1974-04-23 Trane Co Refrigeration machine with liquid refrigerant cooled motor
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IL109967A (en) * 1993-06-15 1997-07-13 Multistack Int Ltd Compressor
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JP2000291597A (en) * 1999-04-01 2000-10-17 Ebara Corp Capacity control device in multi-stage compressor for refrigerator
JP2003172281A (en) * 2001-12-06 2003-06-20 Sanyo Electric Co Ltd Compressor
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JP2007154726A (en) * 2005-12-02 2007-06-21 Toshiba Kyaria Kk Hermetic compressor and refrigeration cycle device
JP4949817B2 (en) * 2006-12-08 2012-06-13 三菱重工業株式会社 Multistage compressor and refrigeration cycle using the same
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Also Published As

Publication number Publication date
US20160177954A1 (en) 2016-06-23
WO2015027825A1 (en) 2015-03-05
EP3040559A1 (en) 2016-07-06
CN104421188A (en) 2015-03-18
JP2016532053A (en) 2016-10-13
EP3040559A4 (en) 2016-09-07

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