空压机为什么会耗能严重？

一般来说，购置一台空压机投入使用，所需的费用包括两个部分，一部分是购买成本和维护成本，这个占总费用的20%；另一部分是空压机运行中的能源消耗，这个占到了空压机使用费用的80%，可见空压机的耗能十分严重。但是空压机为什么耗能这么严重呢？主要有如下几个方面原因。

Generally speaking, the cost of purchasing an air compressor to put into use includes two parts, one is the purchase cost and maintenance cost, which accounts for 20% of the total cost; the other is the energy consumption in the operation of the air compressor, which accounts for 80% of the use cost of the air compressor. It can be seen that the energy consumption of the air compressor is very serious. But why does the air compressor consume so much energy? The main reasons are as follows.

1、空压机在运行时，使用合适的电压工作，电源电压不对称或电压过高过低都会导致空压机能源的大量浪费。由于三相四线制低压供电系统单相负荷的不平衡，使得电动机的三相电压不对称，电机产生负序转矩，增大电机的三相电压不对称，电机产生负序转矩，增大电机运行中的损耗。另外电网电压长期偏低，使得正常工作的电机电流偏大，因而损耗增大，三相电压不对称度越大，电压越低，则损耗越大。

1. When the air compressor is running, using the most appropriate voltage to work, asymmetric power supply voltage or too high or too low voltage will lead to a lot of waste of air compressor energy. Due to the unbalanced single-phase load of the three-phase four wire low-voltage power supply system, the three-phase voltage of the motor is asymmetric, and the motor produces negative sequence torque, which increases the three-phase voltage asymmetry of the motor, and the motor produces negative sequence torque, which increases the loss in the operation of the motor. In addition, the long-term low voltage of the power grid makes the current of the normal motor larger, so the loss increases. The greater the three-phase voltage asymmetry, the lower the voltage, the greater the loss.

2、空压机维修保养以及管理不善，空压机在运行了一定周期后，便需要做定期的保养维护，若是配件出现了偏差问题，则需要及时的维修或是更换。如果对电机及设备没有按照要求进行维修保养，任其长期运行，不但会效率低下，而且会使得损耗不断增大。

2. Air compressor maintenance and poor management, air compressor in operation after a certain period, you need to do regular maintenance, if there is a deviation of parts, you need timely repair or replacement. If the motor and equipment are not maintained according to the requirements, it will not only be inefficient, but also increase the loss.

3、空压机的电机负载率低，可能因为电动机选择不当，富裕量过大或生产工艺变化，使得电动机的实际工作负荷远小于额定负荷，大约占装机容量30%~40%的电动机在30%~50%的额定负荷下运行，运行效率过低，但是能源消耗却没有减少，导致了大量的能源浪费。

3. The motor load rate of air compressor is low, which may be due to improper motor selection, excessive surplus or production process change, so that the actual working load of the motor is far less than the rated load. About 30% ~ 40% of the installed capacity of the motor runs under 30% ~ 50% of the rated load, the operation efficiency is too low, but the energy consumption is not reduced, resulting in a lot of energy waste.

4、已经过时的老旧电机仍在使用，这些电机的制作工艺较为粗糙，但是技术不如现在，采用的是E级绝缘，导致体积较大，启动性能差，效率低下，花费的能源好工作效率不成正比，也是空压机耗能严重的原因之一。

4. The outdated old motors are still in use. The manufacturing process of these motors is relatively rough, but the technology is not as good as it is now. The E-Class insulation is used, which leads to large volume, poor starting performance, low efficiency, good energy consumption, and the work efficiency is not proportional. It is also one of the reasons for the serious energy consumption of the air compressor.