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1、Who is Multistack?,The Creator and Leader of Modular Chiller 模块化冷水机组的发明者与领导者,MODULAR CHILLER-Since 1985,Multistack International Limited,Multistack 生产基地:Multistack Australia-since 1985Multistack China-since 1988Multistack U.S.-since 1989,Multistack 产品:水冷模块冷热水机组风冷模块冷热水机组一次泵变水量模块冷热水机组自由变频模块冷热水机组磁悬浮离心式
2、模块机组,MT 系列 磁悬浮 离心式模块化冷水机组,MT SeriesWater cooled Modular Chiller,MTW350(制冷量 358kW)MTW500(制冷量 511kW)模块化结构 制冷量90880TR MV6电脑控制,MT Series water cooled chiller,MT Series Chiller What is New?,磁悬浮轴承离心式压缩机 不需要润滑油 R134a冷媒 高效 COP=5.5 IPLV=8.6(0.41kW/ton)安静 70dB(A)(at 3m)软启动，变频驱动 与压缩机一体化的数字控制系统 可变水流量运行,TT Serie
3、s Centrifugal Compressor with Magnetic Bearing,About TT300,1993年，Multistack 最早开始磁轴承的离心式制冷压缩机的项目研究 1997年，进入样机试验阶段 1999年，Turbocorp 迁往加拿大，成为一个完全独立的公司 2003年，参加Chicago AHR Expo，获得Energy-Innovation Award,两极压缩离心式压缩机无油的磁轴承变频驱动一体化数字控制,Two-stage centrifugal compressorOil-free Magnetic bearingsVariable-speed d
4、riveOn-board digital electronics,Frictionless Compressor Technology,TT Series Centrifugal Compressor,21st Compressor Innovation,永磁体转轴与离心叶轮,吸气导向叶轮,转速控制器VSD,永磁式同步电机,轴承控制器MBC,磁轴承和轴承传感器,Conventional Compressor Roller bearings or hydrodynamic bearings,摩擦损失 油膜覆盖换热器传热表面 润滑油循环装置和控制-循环油泵-油冷却器和油加热器-油分离器,润滑的烦恼
5、,How much did oil degrade the performance of the chiller,Percentage of oil in refrigerant in older chillersASHRAE Research Project,How much did oil degrade the performance of the chiller,Oil content in refrigerant%,Efficiency loss%,How much did oil degrade the performance of the chiller,压缩机烧毁的原因近90%
6、缘于润滑的失效,Up to 90%,数字控制式磁轴承系统完全无润滑油运行,TT Series Centrifugal Compressor,21st Compressor Innovation,TT Series Centrifugal Compressor,21st Compressor Innovation,机械轴承,磁悬浮轴承,Magnetic Bearing SystemTwo radial&one axial bearingsSensor ring,Radial bearings,Radial bearings,Axial bearing,Sensor ring,Motor,Moto
7、r rotor,Sensor ring,Impellers,Magnetic bearing system keeps the shaft properly centered and positioned at all times.,Magnetic bearing,Rotor,Rotor,Axial bearing,Radial bearing,PermanentMagnet,Electromagnet,Electromagnet,PermanentMagnet,Magnetic Bearing,Permanent magnets Primary work Electro-magnets S
8、econdary trim system Bearing sensor Feed back rotor orbit,Shafts Position Controls,Sensed and repositioned 6,000,000 times every minuteMaximum run-out less than 7x10-3mmSoftware compensate for any out-of-balance condition in the levitated assembly,Gears drive shaft to get higher speed,齿轮传动增速,离心叶轮,齿轮
9、增速,For Conventional Centrifugal Compressor,噪声震动效率损失需要润滑,齿轮传动提速,Gears drive shaft to get higher speed,齿轮驱动,For Conventional Centrifugal Compressor,Motor Directly Drive Impellers,旋转速度1800048000rpm马达直接驱动离心轮,The Further of Efficiency,TT Seriescompressor,Conventionalcompressor,180 W,10,000 W,没有机械轴承和齿轮 没有
10、机械摩擦损失 没有润滑油循环，纯制冷剂压缩循环 没有润滑油的加热或冷却,The magnetic bearings have less than 2%the friction loss compared to conventional bearings,磁轴承和轴之间没有机械接触 磁轴承和轴之间的气垫阻隔马达震动 只有气流噪声 高频程噪声易于衰减,Sound And Vibration,TT Seriescompressor,Conventionalcompressor,77dBA,85dBA,The sound pressure is 77dBA at 1m and 70dBA at 3m
11、from unit under ARI standard 575-94Method of measuring machinery sound within an equipment space,与澳大利亚国家工业科技研究所（CSIOR）共同研究设计,Synchronous Brushless DC Motor,永磁体无刷式同步直流电动机,共体式永磁体转子轴,Synchronous Brushless DC Motor,Synchronous rotor,马达效率 96-97%(普通感应式马达效率 92%),不需要转子励磁线圈不需要换向电刷,体积紧凑马达尺寸 160hp=1hp(感应式马达),I
12、nlet Guide Vanes(IGV),Avoid Choking at Low LoadTrims Compressor Cap.Optimize Energy Efficiency(by Digitally integrated with VSD),Motor and key electronic components are internally refrigerant-cooled,On-board Digital Electronics,VFD&SCR,Rectifier,Digital controller,Capacitors,PWM amplifier,Integrated
13、 Compressor Design(ICD),Digitally controlled bearingsDigitally controlled powerA Digital control that integrates and optimizes the compressor E.expansion valve(s)chiller controlA Digital control with up to 150 points of diagnostic information,The“right way”to design a cooling system,A Design that in
14、cludes:,Variable-speed driveCentrifugal compression,VFD(Variable Frequency Drive)AC-DCFrequency 300-800HzSpeed 18,000-48,000rpmCapacity range 20%-100%,Soft start,Reduces the inrush current,Startup inrush current 26 ampsTraditional compressor 500-600 amps,Amps,Time,Compressor control system-Power Sup
15、ply,Line reactor,rectifier,DC linkcapacitors,Insulated gatebipolar transistor,Motor bearingcontroller,3phase380-480v50/60Hz,DC Bus+,SCRcontrol,Compressor controller,Tomotor,DC Bus-,Soft-start module,Line reactor,rectifier,DC linkcapacitors,Insulated gatebipolar transistor,Motor bearingcontroller,3ph
16、ase380-480v50/60Hz,DC Bus+,SCRcontrol,Compressor controller,Tomotor,DC Bus-,Soft-start module,0V,+200V,+300V-300V,Pulse-widthmodulation,High-voltageDC-DC converter,Compressor control system-Power Supply,Capacitors Filter for smooth DC voltageEnergy storage and provide power to the magnetic bearings
17、when external power loss,Shutdown and power failures,First,MotorMotor becomes a generator in a millisecond of the compressor losing its power,Shutdown and power failures,Second,Touchdown bearingsAfter the compressor comes to a complete stop,the rotor delevitates normally onto touchdown bearings.Used
18、 as a backup bearing to prevent hard contact.,Shutdown and power failures,Third,Integrated Compressor Design(ICD)Web-Based Monitoring,Interfacemodule,Mod-busserver,Mod-bus overTCP/IP or HTTPProtocol,End user with internet explorer web browser,Remote monitoring,Remote monitoring,Mod-bus overTCP/IP,HT
19、TPProtocol,IP Network,钎焊板式满液蒸发器,趋近温差3K 结构紧凑，传热高效 电子膨胀阀供液量精确控制 减少50%冷媒充注,Super High Efficiency Compact Brazed Plate Flooded Evaporator,ARI550/590-1998,(kW/ton)Comparison MTW300 Chiller vs Leading Competitor,kW/ton,Load%,MTW300,Leading Competitor,ARI550/590-1998,MT Series Modular Chiller,Energy Effici
20、ency Advantage,磁悬浮轴承离心式压缩机满负荷高效率变频控制技术及模块化组合，部分负荷高效率VWF节省部分负荷水泵功率,MT SERIES CHILLER,高效磁悬浮轴承制冷压缩机（TT Comp.）+满液蒸发板式热交换器（SPFE）+模块化变水量运行（VWF）,1+1+13,革命性的 模块化冷水机组（MTW）,IIIMultistack MT Series Chiller,磁悬浮轴承离心式压缩机 不需要润滑油 R134a环保冷媒 高效 COP=5.5 IPLV=8.6(0.41kW/ton)安静 70dB(A)(at 3m)软启动，变速运行 一体化数字控制系统 可变水流量运行,MT Series Water Cooled Chiller21st Century Energy Revolution,III MUlTISTACK,III科技改变世界模块化让我们梦想成真,
