Electric Power Industrial Screw Compressor With Variable Frequency Control

Electric Power Industrial Screw Compressor With Variable Frequency Control

Industrial Screw Compressor DETAILS

Permanent magnetic motor

• Reasonable structure and high power density
• Very small rotator inertia and very fast response speed
• Ultrahigh intrinsic coercive rare earth permanent magnetic material with strong anti demagnetizing capacity
• Possible constant torque output within scope of locked rotator and rated rotating speed
• Special asymmetrical magnetic circuit design, making low-rotating-speed torque ripple small
• High balancing precision, stable and high-speed operation, low noise and small vibration
• Full-sealed or high protection-grade appearance structural design

Magnetic steel

• Punching uses high-performance low-loss silicon, we conduct simulation analysis of mechanical strength with finite element method so as to make rotator inertia reach the minimum on the condition that enough mechanical rigidity and mechanical strength.
• Rotator magnetic steel adopts high-performance NdFeB permanent magnetic material to form sine wave air-gap field
• Axial flow uses the processing method of embedded bond, which simultaneously meets requirements of optical axis and bond axis.

Winding

• Punching uses high-performance low-consumption silicon steel sheet;
• Insulation grade of enameled wire is grade C and integral insulation is grade F
• Shell uses high-intensity aluminum profile shell, appe final optimization through finite element temperature gradient and good heat dissipation effect;

SKF-bearing

Compared with bearings of other brands, SKF bearing, it has good abrasive resistance, superior fatigue resistance, strong corrosion resistance and comfortable muting property, making longer service life, higher reliability and lower noise of permanent magnetic synchronous non-inductive motor.

Infinite volume control air inlet system

The compressor adopts infinite volume control air inlet system. It could operate without magnetic valve. Built-in function of the check valve can reduce malfunctions. The compressor is free from unloading process and shows higher energy efficiency. This compressor can operate at frequencies from 0-300HZ and realize high energy efficiency in real sense.

High-performance vector frequency converter

• Standard equipment with radio-frequency reactor which effectively reduces magnetic field interference outside high-frequency machine generated by frequency converter;
• Reliably reduces peak current when it is started, realizes stable starting;
• Saves cost of electrical power units;equipped with standard dust screen, circuit board is processed with surface coating, so antifouling, anti-dust and damp-proof effects are realized;
• equipped with standard dust screen, circuit board is processed with surface coating, so antifouling, anti-dust and damp-proof effects are realized;
• Special heat dissipation design prevents tripping under summer high temperature;
• Standard protocol of CAN with wire road standard of hardware and strong noise resistance;
• Rapidly track change of pressure, control pressure fluctuation within ±0.01Mpa, optimal power is used to accurately provide necessary air amount;
• Advanced integrated draught fan, and motor uses double-vector variable-frequency control technology.

High efficient centrifugal fan-cooling control system of double frequency (optional package)

• centrifugal fan-cooling permanent magnet motors adopt variable frequency control technology. They can save about 50% of the energy. Rotation speed of the cooling fan can be adjusted according to gas emission temperature, so as to reduce power consumption. Stable temperature of the overall system can improve durability of parts. In addition, variable frequency cooling fan can lower the noise.
• Centrifugal cooling fans are characterized by high efficiency, low noise, balanced pressure curve and other outstanding performances.

Reduce energy costs

• When the energy accounts for above 70% of the life cycle cost (LCC) of compressor, the energy consumption optimization becomes essential. In fact, the power consumption for the production of compressed air accounts for over 40% of the total power consumption of the plant, so the energy consumption optimization can even determine its success. Using the permanent-magnetism frequency-conversion technology of Dresdnerlan, we can provide partners for your cost saving. WZS series of products can truly reflect the demand for compressed air, making substantial energy saving become a reality
• Traditional compressors are operated between two set pressure points using the control methods of "full load and no load". The compressor turns into no load mode when the pressure reaches the maximum. When the air demand is medium or low, the no-load power will be consumed excessively, which will result in large amount of waste.
• Because no unnecessary power consumption will be generated, the energy cost reduced by the permanent-magnetism frequency-conversion can be up to 35% or more. The life cycle cost (LCC) of the compressor can be reduced by an average of 22%. In a word, compared with the compressor with invariable rotate speed, Wan Beardsley compressor can recover the extra cost within 1 or 2 years.

Energy Saving

• Traditional compressors (standard machine) usually use ON / OFF or proportional regulation system, which adjusts the opening amount of the air inlet of compressor. The adjustment method can also meet the actual requirements of the actual gas consumption, but the revolving speed of the compressor maintains at the rated speed in the entire adjustment process, the frictional work and cooling fluid agitation work will not be reduced, so although the gas consumption is lowered, the actual power consumption is not limited substantially. The variable frequency regulation can make the actual power consumption of the variable frequency compressor decline in the same proportion, and the energy is effectively used into the air compression.
• In the market environment with fierce competition, it is an important matter as to whether the cost can be reduced. With the use of PM frequency conversion technology, you can save energy, thereby decreasing electricity expenditure sharply. It adjusts the compressor production capacity automatically according

Difference of servo permanent magnetic variable-frequency technology and non-variable frequency technology in energy conservation

Non variable-frequency unit regulates demand for air discharqe with modulatinq capacity valve, while servo permanent magnetic variable-frequency unit regulates demand for air discharge in way of motor frequency conversion, and comparison of energy conservation between the two is as following:

Company profile:

Wan Beardsley Compression Machine (Shanghai) Co., Ltd is a medium and large-sized enterprise specialized in research, development and production of air compressors. By virtue of fruitful technological strength and advanced and complete production and testing equipments, this company pursues enterprise tenet “Achieve high quality with conscientiousness and create a centennial brand with quality”, strictly performs the commitment “be the most energy-efficient screw air compressor”, continuously seeks for sustainable improvement of products, process and system, and increasingly improves product properties, quality and reliability so as to make out R & D and manufacturing capacity step onto a new stair in manufacturing technology of air compressor. Our product quality has reached internally first-class level, and some products have been exported to and supported Southeast Asia and European and American markets.

Our Advantage:

Every permanent magnet variable-frequency air compressor produced by Wan Beardsley through sophisticated air compressor vector frequency control technology reaches national grade-2 energy-saving effect, some products have grade-one energy efficiency, Wan Beardsley screw air compressor is featured by high efficiency, low noise, small vibration, small volume, low expense, convenient maintenance, beautiful appearance and so on, the product uses intelligent module control system and favorable human-machine interface to realize fault self diagnosis, servo-type gas flow automatic adjustment and 24-hour unattended operation, and it belongs to one of the most advanced machine type both home and abroad. At present, Wan Beardsley series of screw air compressors include: integrated permanent magnet variable-frequency series, non-inductive permanent magnet variable-frequency series, servo permanent magnet variable-frequency series, low-pressure permanent magnet variable-frequency series, two-stage compression permanent magnet variable-frequency series, oil cooling permanent magnet variable-frequency series of screw air compressors, refrigerated dryer series, adsorption dryer series, combined dryer series, high-efficiency precision dryer, gasholder, etc. Products are extensively applied to industries like machinery, furniture, textile, chemical fiber, medicine, food, metallurgy, electronics, war industry, environmental protection, etc.

FAQ:
1. Before quoting, what should users offer?
1). Discharge pressure (Bar, Mpa or Psi)
2). Air discharge/Air flow/Air capacity (m3/min or CFM)
3). Power supply (220/380V, 50/60Hz, 3Phase)
2. If I don't know the pressure and air flow, what should I do?
1). Take the picture of nameplate, we will advise the suitable air compressor to you.
2).T ell us what industry you are, we can advise the suitable one (so as to air tank / air dryer / air filters).

two stage air compressor

2 stage air compressor

Electric Power Industrial Screw Compressor With Variable Frequency Control Images