90kw VFD Air Compressor 5.91~28.35m³/min 225SA(W)-PM Air Cooling
⊙ Rare Earth Permanent Magnet Frequency Conversion Energy-saving Air Compressor is a kind of air compressor with dual frequency conversion speed regulation function.
Permanent Magnet Inverter Screw Air Compressors
1. The air end and motor is integrated connected with each other. More compact system structure makes smaller size and smaller space to be occupied on site.
2. The system efficiency is 12%~18% higher than normal fixed speed compressor. The energy saving level is above the first class standard according to GB19153-2009.
3. More intelligent controlling system. The air capacity and system temperature could be adjusted automatically. The compressor is running in a stable temperature. The operation would be very easy.
4. Rational design to optimize the system reliability and ensure an easy maintenance.
5. A computer network remote monitoring system is used in the controller. Users can send orders to the controller according to the displayed data to realize a remote control to the air compressor.
⊙ You know the electricity cost of the air compressor:
Air compressor is a huge energy source. Generally speaking, air compressor equipment accounts for about 25% of the total power consumption of the factory.
The energy-saving improvement of air compressor can play a great role in reducing the overall energy consumption of the factory.
Permanent magnet frequency converter air compressor can save at least 26% energy compared with traditional air compressor.
⊙ Specification parameters
| Specifacation | Cooling Style | Pressure Range
(bar) | Minimum Exhaust Volume
(m³/min) | Rated exhaust capacity
(m³/min) | Maximum Exhaust Volume
(m³/min) | Motor Power
(kw) | Total Weight
(kg) | Dimension
(L*W*H)
(mm) |
| SRC-25SA-PM | Air cooling | 6~8 | 0.84 | 3.08 | 3.23 | 18.5 | 750 | 1030*887*1200 |
| SRC-30SA-PM | Air cooling | 6~8 | 0.84 | 3.76 | 3.95 | 22 | 750 | 1030*887*1200 |
| SRC-40SA-PM | Air cooling | 6~8 | 0.84 | 4.84 | 5.08 | 30 | 750 | 1030*887*1200 |
| SRC-50SA-PM | Air cooling | 6~8 | 1.47 | 6.32 | 6.64 | 37 | 760 | 1200*1098*1420 |
| SRC-60SA-PM | Air cooling | 6~8 | 1.47 | 7.53 | 7.91 | 45 | 920 | 1200*1098*1420 |
| SRC-75SA-PM | Air cooling | 6~8 | 2.30 | 9.36 | 9.83 | 55 | 1100 | 1500*1150*1550 |
| SRC-100SA-PM | Air cooling | 6~8 | 2.30 | 12.10 | 12.71 | 75 | 1150 | 1500*1150*1550 |
| SRC-125SA(W)-PM | Air cooling
Water Cooling | 6~8 | 3.01 | 14.95 | 15.70 | 90 | 1700 | 2000*1400**1650 |
| SRC-150SA(W)-PM | Air cooling
Water Cooling | 6~8 | 4.42 | 19.88 | 20.87 | 110 | 1800 | 2000*1400**1650 |
| SRC-185SA(W)-PM | Air cooling
Water Cooling | 6~8 | 5.40 | 22.74 | 23.88 | 132 | 1850 | 2000*1400**1650 |
| SRC-225SA(W)-PM | Air cooling
Water Cooling | 6~8 | 5.91 | 27.00 | 28.35 | 160 | 1950 | 2000*1400**1650 |
Our variable frequency series screw compressor takes advantage of the stepless speed regulation of the frequency charger, and start screw air compressor gently through the controller or the PID regulator inside of the controller to improve the start and operation mode of the motor.
Prediction and evaluation of energy saving:
If the air compressor frequently upload and unload during the operation and particularly the steady pressure output is needed, it is necessary to use air compressor frequency changer to control air compressor to achieve the effect of energy saving in a certain range.
Steady pressure:
The air compressor frequency changer aims at a the larger fluctuations of air volume. Internal PID regulator can quickly adjust the response. Compared with the limit switch control of operating with motor in constant frequency, the stability of the air pressure output increases exponentially, keeping on a constant point.
Start with no impact:
For the frequency changer has the function of the soft start, the start-up current is 3 times lesser than the power frequency startup. So the impact of the startup is smaller.
Variable flow control:
Based on the PID regulator and the actual air consumption to adjust the motor speed at a real time, to control the emission output and to achieve an equilibrium air supply. When low consumption, the air compressor can sleep automatically to reduce the energy loss. The optimized control further improves the energy-saving efficiency.
Better voltage adaptability of AC power supply
Due to the over modulation technique used in frequency changer, while in low AC power supply voltage, it still outputs the enough torque to drive the motor to work. While in high AC power supply voltage, it will not lead to a higher voltage output to motor.
