Detailed introduction:
KAITAIN permanent magnet frequency conversion screw type air compressor
Model: PMVF22
Exhaust pressure: 0.62-1.0MPA
Power: 22KW
Machine weight: 500KG
Volume flow: 1.0MPA
Rated speed: 5844-7531r/min
Dimensions (length * width * height) 1630*880*1140mm
First difference between permanent magnet and power frequency inverter screw compressor screw air compressor
Energy efficiency and high power frequency screw air compressor once the deviation from the rated condition, the efficiency will have a range of decline, energy saving air compressor will become not energy. Mountains permanent magnetic frequency conversion technology can according to the changes in the volume of motor speed control, and then adjust the amount of exhaust, the any gas compressor can maintain high efficiency. So compared with a frequency of screw air compressor, when system for volume fluctuations, permanent magnetic screw air compressor has advantages in energy saving and fluctuation is bigger, the energy-saving effect is more obvious, the comprehensive energy saving can be as much as 50%.
Of Comparison for Energy Efficiency Table
37KW ordinary 37KW industrial frequency screw compressor
37KW Kaishan 37KW PM variable frequency screw compressor
General power frequency screw machine (281200KW)
First permanent magnet inverter screw machine 183520KW (real power)
Above the 37KW screw air compressor, for example, according to the experimental test results, the average running time of 8000 hours per year:
First permanent magnet frequency than ordinary screw air compressor screw air compressor sales: 281200-183520=97680KW.
The difference between first permanent magnet screw air compressor and inverter plug screw air compressor
Ordinary screw air compressor can adjust the speed of the motor by the way of the external frequency converter, so as to adjust the exhaust quantity, so that the gas production and gas consumption can be adjusted to achieve the effect of energy saving. But the ordinary screw air compressor used by the motor are rated speed, rated power and rated efficiency, the external frequency converter forced air compressor motor deviation from the rated speed. And ordinary motor once the deviation from the rated speed, the efficiency will be greatly reduced, the more the more efficient the more efficient. The permanent magnet frequency conversion motor of permanent magnet frequency conversion motor can be maintained at any speed, and can maintain a high motor efficiency, so the energy saving effect is much better than the ordinary screw air compressor.
In addition, on inverter plug-in ordinary screw air compressor with a tuning range of 40-100%. That is to say when the deviate by more than 60% of the cases from, on inverter plug-in will not regulating motor speed, and mountains of permanent magnetic screw air compressor adjustment range for 15-100%, that mountains permanent magnetic screw air compressor from 85 per cent of the condition can be normally work.
37KW compressor of Table Comparison for Energy Efficiency screw 37KW of air
First electric permanent magnet screw air compressor: 183520KW
Ordinary screw air compressor year: 281200KW
First permanent magnet screw air compressor technological advantages compared to ordinary permanent magnet inverter screw air compressor
A high efficiency of the permanent magnetic frequency conversion screw air compressor need to achieve the best in the following three aspects:
One is to have a high efficiency of the screw host
Two is to have a high efficiency of permanent magnet synchronous motor
Three is to have a class of permanent magnet frequency conversion control technology.
First permanent magnet screw air compressor in these three aspects has obvious technical advantage.
Pioneer permanent magnet inverter screw compressor than ordinary permanent magnetic screw air compressor in the three aspects of screw extruder efficiency, the efficiency of the motor and control technology has obvious advantages.
First permanent magnet screw air compressor has the world leading level of innovative products
The rare earth permanent magnetic materials produced by the permanent magnet motor rotor is realized the rare earth permanent magnetic, non slip, no electrical excitation, no rotor fundamental iron, copper loss and fewer calories, reducing loss of the stator current and stator resistance. Its efficiency is improved compared with the same capacity asynchronous motor 5~12%. Especially at low speed, it can still maintain a high motor efficiency. The rare earth permanent magnet motor is widely used in developed countries such as Europe and the United States. Can be applied to a wide range of wind turbine, water pumps, compressors and other general equipment, but also used in electric vehicles, wind power, CNC machine tools, oil pumping unit, mobile power station and other fields.
The permanent magnet frequency conversion screw air compressor is the most widely used air compressor in the world. It has been widely used in European and American countries. Pioneer permanent-magnet frequency conversion screw air compressor by mountains North America R & D center and the Swiss company cooperation development, global top permanent magnet frequency experts hosted the design.
The new VPJ permanent magnet frequency conversion screw air compressor host with the new development of Dr. Tang Y type line, the maximum speed of 7600 RPM per minute, small, power surging. Permanent magnet motor rotor and the male rotor implement coaxial design, the transmission efficiency is 100%; permanent magnet motor no bearings, no center bracket, a coupling etc. parts of the host and the system structure more compact, reduce the fault point. First high speed permanent magnet inverter screw machine, has the following advantages compared to common plug-in inverter screw machine:
1, improve the operating efficiency. Can be achieved from the low speed to high speed (motor speed from r/min 1200--7600), from low pressure to high pressure (bar 6.2-10), the full range of high efficiency and energy saving.
2, energy efficiency. To meet customer demand for a variety of pressure, can be from 1 cubic meters to 7 cubic meters of gas range free choice. Taking 37kW unit as an example: in the condition of different pressure and displacement, the measured specific power reaches the 1 level of energy efficiency standards, and the unit can maintain the stability of high efficiency and power factor.
3, highly integrated control. Inverter