CPM Series Permanent Magnet Motor Variable Speed Screw Air - PowerPoint PPT Presentation

CPM Series Permanent Magnet Motor Variable Speed Screw Air Compressor

PAR ART T 01 Why we choose the VSD compressor

Big Air Fluctuation 88% of customers air demand is severe fluctuations Measured results of air compressor usage in more than 4000 customers in the world Air demand 1 空气需求曲 线 1 空气需求曲 线 2 Air Demand Profile n°2 Air demand 2 120 140 100 120 Sunday Capacity in l/s 80 Capacity in l/s 100 Sunday Monday 80 Monday Tuesday 60 Tuesday Wednesday 60 Wednesday Thursday 40 40 Thursday Friday Friday Saturday 20 20 Saturday 0 0:15 1:30 2:45 4:00 5:15 6:30 7:45 9:00 10:15 11:30 12:45 14:00 15:15 16:30 17:45 19:00 20:15 21:30 22:45 0:00 0 0:15 1:30 2:45 4:00 5:15 6:30 7:45 9:00 10:15 11:30 12:45 14:00 15:15 16:30 17:45 19:00 20:15 21:30 22:45 0:00 Time Time 88% 12% 空气需求曲 线 3 Air demand 3 Air Demand Profile n°3 The average loading 140 determines the air 120 consumption of the 100 Capacity in l/s compressor. Sunday 80 Usually we choose air Monday Tuesday 60 compressor model is according Wednesday 40 Thursday with factory biggest air demand Friday 20 (biggest loading factor) Saturday 0 0:15 1:30 2:45 4:00 5:15 6:30 7:45 9:00 10:15 11:30 12:45 14:00 15:15 16:30 17:45 19:00 20:15 21:30 22:45 0:00 Time of 3 36

Low Loading Rate DO YOU KNOW When the air compressor is unloading, it consumes approximately 60% electric power but giving you nothing in return. Since the compressor’s electric motor still consumes about 60% of full load kw OH MY GOD!!! of 5 36

Air Compressor Life Cycle Cost Analysis The cost of fixed speed compressor The cost of VSD compressor Consumption Maintenance Energy saving Installation Investment VSD screw air compressor average energy saving is more than 30% So it is very necessary to select the VSD screw air compressor!!! of 6 36

PA PART 0 02 How the VSD compressor save energy?

VSD compressor loading and unloading mode The inverter controls the speed to deliver the air volume, avoid unloading and save energy. Below is the fixed speed compressor operation mode. Green is loading, yellow is unloading. of 8 36

VSD compressor loading and unloading mode Electric current(A)  ENERGY WASTE – Start repeatedly – Unloading When is unloading, power consumption is a large part of the total power consumption in most applications All of above waste,using the VSD compressor will not exist of 9 36

Fixed speed compressor VS normal VSD compressor fixed speed compressor normal VSD compressor remark content reason result reason result Purchasing cost low cost good increase inverter and other parts bad intake valve movement frequent, intake valve movement less, maintenance cost bad good air-end 、 motor high speed,High failure rate air-end 、 motor low speed,low failure rate Wide pressure zone, pressure difference is 0.2MPa,need to select Constant pressure air supply,pressure fluctuation is higher pressure,besides Large leakage in the air-end and pipe 0.01Mpa,can select more lower pressure Variable speed regulation,non or less save heavy unloading power consumption power consumption bad unloading,save10~26% good 15~40% erengy The star triangle starts, the current is 3-6 times,big power Soft starts,low power consumption consumption The power factor of the motor is low and hige current The power factor of the motor is high and low current The rated speed is constant, the impact of start is big and the Running at lower speed, noise bad good noise is big Small start conflict, small noise life high speed,big impact bad low speed,small impact good selection of air tank big pressure fluctuation,need big air tank bad small pressure fluctuation,need small air tank good big fluctuation,Big influence on air equipment,after treatment is The constant pressure has little influence on the air air supply pressure not good for water and oil removal, and it is more adverse to the bad equipment. good products More favorable for the products Starting current 3-6 times the amount of current, large impact on the power net bad soft stars, Small start current good of 10 36

Tips If you always worry about the inverter, use our normal VSD compressor is very suitable for you!! Fitted with “VSD” and “Fixed Speed” selector switch, unit can be reverted to normal fixed speed operation if the inverter is faulty or under repair, not affect the production efficiency. of 11 36

Normal VSD VS permanent magnet synchronizing VSD normal VSD compressor permanent magnet VSD compressor content remark reason result reason result Purchasing cost motor is cheaper,but have bearing,coupling or belt bad motor is expensive,but no bearing,coupling or belt good good maintenance cost have bearing,coupling,belt,many failure points bad no bearing,coupling,belt,less failure points air-end low speed,poor efficiency low speed,high efficiency Adjustment Asynchronous motor, have slip rate, low Adjustment Synchronous motor,higher adjustment precision precision precision adjustment rangesmall adjustment range （ 40-100% ） big adjustment range （ 25-100% ） transmission Transmission loss 1-1.5% non-Transmission, efficiency nearly 100% bad good power (save 5~7% Low power factor, large current and high power high power factor, small current and low power consu energy) consumption. consumption. mption Motor efficiency is 94-95%. Motor efficiency is 94-95%. low speed,poor Efficiency low speed,better Efficiency motor The rotor magnetic field need to consumes the rotor have magnetic field,no need to consume. electrical energy to conver. motor IP54,dustproof and waterproof ability is motor IP23,Inner wind, dust large.Easy to cover permanent good bad strong. magnet, easy to demagnetize. Technology not good bad advanced good advancement motor volume is big,and Large transmission chain The motor is usually only 1/3 of the ordinary motor, and the volume low good volume transmission chain is smaller. of 12 36

PA PART 0 03 YOUR BEST CHOICE permanent magnet VSD compressor

Technical Parameter of 14 36

Details photos of 16 36

Features  Permanent Magnet Motor – improve the motor efficiency  Inverter technology– no unloading, no wastage  No pressure loss – reduce the pressure consumption of 17 36

Features Permanent magnet Screw technology motor technology (since 2006) (since 2000) of 18 36

Features motor Tapered shaft  Construction energy saving No gear Gap of stator & rotor No bearing Cooling fan No oil seal Compressor  One-shaft direct driven, can save Cool air male rotor No shaft seal shell No gear box about 3%~5% transmission energy No need shafting alignment bolt stator PM rotor No gear, no bearing, no oil seal, no gear box, no need shafting alignment of 19 36

Features Construction energy saving Transmission way Theoretical efficiency Theoretical difference transmission efficiency One-shaft 100% 0 Coupling 99% 2% Belt 97% 3% PM motor and air-end are one-shaft structure, no bearing in the motor, no coupling and belt, reduce the fault rise of bearing, coupling, belt and very low maintenance cost Compact size of the PM motor, it is about 1/3 of normal VSD motor, therefore the PM motor more easy for installation of 20 36

Features PM motor energy saving Asynchronous Motor Permanent Magnet Synchronous Motor Permanent magnet motor Through the AC voltage magnetic field of stator coil and magnetic force to let the rotor run Asynchronous motor Stator coil produce a rotation magnetic field (+ pole & - pole), rotor (secondary conductor) feel the magnetic field and run of 21 36

Features PM motor energy saving  With the high-performance permanent magnet material, PM motor don’t lose magnetic even with the temperature of 140 ℃ .It’s life will be more than 15 years.  Specialized corona-resistance enameled wire is applied to stator coil .  Wide frequency conversion range: 25~100% of 22 36

Features PM motor energy saving PM motor & Asynchronous motor efficiency comparison Motor efficiency(%) 22kw PM motor 22kw normal motor Motor speed (rpm) of 23 36

Features PM motor energy saving No matter in any speed, PM motor always keep in high efficiency, but normal motor low efficiency during in low speed (normal motor efficiency loss about 5-10%) of 24 36

Features Inverter energy saving  Inverter adjusts the motor speed to let the compressor offer exact compressed air according with the air demand  top brand Innovate inverter  Vector control technology, fast response  Wider voltage range: 300v~440v of 25 36

Features Inverter energy saving Soft starting , the VSD compressor can be started from 0hz by the inverter. The start current is small. It can reduce the damage of power network, electric elements and other components. Starting current for the fixed speed start-delta starting is about 3-times motor rated current or HP. Direct start is 6-7 times motor rated current or HP. Example: starting current for a 50hp motor is 150hp(for not exceeding 8 seconds), whereas the SOFT STARTING current for an inverter compressor is only at 25% if motor HP. This means a 50hp inverter compressor needs only 12.5HP starting current! of 26 36