25hp vsd drive inverter air compressor for infrastructure and other fields

25hp vsd drive inverter air compressor for infrastructure and other fields

The use of variable frequency air compressors has many advantages such as very high energy efficiency, stability and economy compared with conventional air compressors. Nowadays, the frequency conversion air compressors of different brands and functions on the market are increasing day by day, and the quality and use effect are also mixed.
Pressure (Mpa) 

0.7/0.8/1.0/1.2

Air delivery (m3/min)

3.22/3.01/2.52/2.30

Power    (KW)

18.5

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25hp vsd drive inverter air compressor for infrastructure and other fields

VSD drive invert air compressor advantage

1, energy-saving energy, vsd drive invert air compressor than the general air compressor energy-saving electricity costs at 10%.

2, The operating cost of the vsd drive invert air compressor is reduced.

3, the precision of the variable pressure screw machine precision control. Keep the pressure within a range.

4, the application of vsd drive invert air compressor, the noise of the chassis is lower than the general air compressor.

5, due to the operation of the frequency converter screw invert can reduce the current fluctuations when the unit starts, reduce the impact on the power grid.

6, adapted to the vsd drive invert air compressor air volume adjustment. The invert reaches the reference frequency at a low rate.

The vsd drive invert air compressor will always maintain a constant pressure supply of ±0.1 bar pressure when the required pressure is set; when the gas consumption is large, the pressure will remain unchanged and the rotation speed will be automatically compensated to ensure the supply of gas; when the gas consumption is small The pressure remains constant and the speed is automatically reduced to meet the air volume that is only sufficient.

25hp vsd drive invert air compressor for infrastructure and other fields

VSD drive invert air compressor features

Since the speed of the vsd drive invert air compressor motor is in a one-time relationship with the actual power consumption of the air compressor, reducing the motor speed will reduce the actual power consumption. The vsd drive invert air compressor is a pressure sensor that senses the actual air pressure and air volume in the system. Through the precise matching of electrical control and variable frequency control, the motor speed (output power) is instantly controlled without changing the torque of the air compressor motor (the ability to drag the load), and the system pressure is responded to by changing the compressor speed. The change and maintain a stable system pressure to achieve high quality compressed air on demand output. When the system consumes less air, the compressed air provided by the compressor is greater than the system consumption. The variable frequency compressor will reduce the speed and reduce the output compressed air volume; otherwise, increase the motor running speed and increase the compressed air volume to maintain a stable system. Pressure value. It is the same as the power consumption of the fan motor pump. According to the load change, the voltage of the control input is the same as the principle of the invert.

Its energy saving effect is as follows:

1,The pressure setting of the vsd drive invert air compressor can be one point, that is, the minimum pressure that meets the requirements of the production equipment can be used as the set pressure, and the variable frequency air compressor will adjust the speed of the air compressor according to the trend of fluctuation of the pipe network pressure. Even eliminating the unloading operation of the air compressor, saving energy.

2, Because the vsd drive invert air compressor makes the pressure on the pipe network stable, it can reduce or even eliminate the fluctuation of pressure, so that all the air compressors in the system operate at a lower pressure that meets the production requirements, reducing the pressure upwards. Power loss caused by fluctuations.

3,Since the compressor cannot eliminate the possibility of long-term operation under full load conditions, the capacity of the motor can only be determined according to the maximum demand, so the design capacity is generally large. In actual operation, the proportion of time spent on light loads is very high. If the frequency conversion speed regulation is adopted, the working efficiency at the time of operation can be greatly improved. Therefore, the potential for energy saving is great.

4, some adjustment methods (such as adjusting the valve opening and changing the angle of the blade, etc.), even in the case of small demand, can not reduce the operating power of the motor. After the frequency conversion speed regulation is adopted, when the demand is small, the rotation speed of the motor can be reduced, and the operating power of the motor can be reduced, thereby further realizing energy saving.

5, Most single motor drive systems cannot be continuously adjusted according to the weight of the load. After the frequency conversion speed regulation is adopted, the continuous adjustment can be conveniently performed, and the parameters such as pressure, flow rate and temperature can be kept stable, thereby greatly improving the working performance of the compressor.

VSD drive invert air compressor Parameter

Model JNV-25A
Cooling method Air-cooling
Pressure (Mpa) 0.7/0.8/1.0/1.2
Air delivery (m3/min) 3.22/3.01/2.52/2.30
Motor Power    (KW) 18.5
Speed    (rpm) 2980
Start method VFS
Voltage  (V/Hz) 380/50
Protection grade IP54
Insulation grade F
Driven type Direct
Noise                (dBA) 63
Gas oil content      (ppm) ≤3
Outlet temperature   (℃) ≤Ambient temperature +15
Control type of exhaust volume Intake accommodation control
Setting pressure of safety valve   (Mpa) Air compressor exhaust pressure +0.1
Lubricating oil quantity  (L) 15
Lubricating oil brand Jinniu
Size L          (mm) 1350
W         (mm) 875
H          (mm) 1380
Weight                (KG) 620

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