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Rare earth permanent magnet inverter screw compressor advantage
Author: 志和      Release Date:2014/7/7      View Count:3645
 

In the global energy shortage, energy saving is important today, inverter screw compressor for energy saving has much market attention. Inverter screw compressor current domestic production of most is used in AC asynchronous motor, but the efficiency of AC induction motor is low, frequency conversioncontrol more complex. Rare earth permanent magnet synchronous motor has obvious energy saving effect, low temperature rise, good starting performance, light load efficiency higher merit, it would be the ideal motor instead of AC induction motor inverter screw air compressor.

Permanent magnetic frequency conversion compressor advantage:

High energy saving efficiency, frequency conversion control load rate is low,the energy conservation effect is obvious, can be adjusted according to thenumber of air quantity. Compared with non inverter for speed and can not, the load rate is low, the energy conservation effect is obvious. Rare earth permanent magnetic screw air compressor unit tested its performance can meet the national energy efficiency standards. Permanent magnetic variable frequency compressor to maintain up to 95% efficiency: inverter compressor in the boot when the motor efficiency is 95%, always keep up to 95% efficiencyin the whole volume speed range.

Operation low noise noise - approximate "zero" sound: permanent magnetinverter compressor using noise source isolation method and centrifugal fandesign and operation, the noise compared with the same type of power unit is reduced by about ten percent. By adopting new design advanced, optimization of sound-absorbing material, realize operation of sound low.

Energy consumption control in one axis structure of the smallest (equipped with permanent magnet motor IPM), with the shaft type structure control of energy consumption to a minimum, more simple structure, no mechanical lossbelt and gear generating, completely cut the transmission energy consumption,and the use of embedded type suspension vertical integration structure andcompletely sealed. The oil resistance of IPM high speed motor, no mechanical seal, completely reduced mechanical loss. Because the motor uses oil cooling,reduce the power needed for cooling fan.

High reliability: magnetic motor synchronous motor of high efficiency, 120 degrees without losing magnet (Nd-Fe-B permanent magnet with high performance); the stator coil adopts special inverter corona resistantenamelled wire, insulation performance. Soft start is achieved when running,the motor current does not exceed the full load current, and greatly reduces the impact of network equipment, no damage to the point of equipment.

No bearing connection: no motor bearing, rotor with permanent magnets mounted directly on the male rotor extending shaft, this structure without the use ofthe bearing, thereby eliminating the fault point, and because the air compressor is directly driven by a permanent magnet motor, at run timewithout considering the gear, belt, coupling or seal the running parts wear,leaks or replacement problem. At the same time also does not need gearcoaxial calibration, directly connected with the host, convenient maintenance.

Asynchronous induction motor and permanent magnet synchronous motor rotor winding part: to absorb the power from the grid can be exciting, the heat loss, the total loss of the motor is 10-30%. Permanent magnet synchronousmotor is embedded in the rotor permanent magnet, permanent magnet rotor magnetic field is established, no induced current in the rotor, power factor is close to 1.

Coaxial drive without driving connection: using coaxial integrated structure design, no transmission losses, transmission efficiency reached 100%.Permanent magnetic frequency under any load keep efficiency above 96%.

Constant power output change volume: the use of permanent magnet inverter compressor can reach the air and energy compression curve of ideal, exhaustlinearization, let the air pressure is more stable. In 0.6MPa to 0.8MPaconversion free pressure, the maximum capacity can be increased by about ten percent.

To prevent the summer high temperature jump: forced cooling frequency converter, prevent the summer high temperature jump.

No motor bearing structure: without considering the belt, coupling, gear transmission parts wear, repair, replacement problem. No bearing structuremaintenance easier, reduce maintenance cost. Easy maintenance (field replaceable motor stator, less maintenance parts, factory rigorous testing, afast fault diagnosis)

Host: high quality rotor adopts imported high quality carbon steel materials,with the patent type, if the non-human damage, can be used for a long time.

Strong ability to adapt to the environment: selection of centrifugal fan,even if the ambient temperature reached 45 degrees, the design of the cooling system can ensure the safe operation of the unit.

Reminder.

Chronicles and the electromechanical device limited company to recommend air compressor, water heater, air compressor heat recovery equipment, as long as you have the air compressor factory, can 0 operation cost of producing hot water and heating.

See details > >

(this article mainly tells you the rare earth permanent magnet inverter screw compressor advantage, but in actual in the problem solving process is for reference only.)

 
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