Discussion on energy-saving standard transformation of motor pumping unit

Electric motor is the equipment that converts electric energy into mechanical energy. The energy consumption of electric motor is mainly the electric energy lost and wasted in the process of converting electric energy into mechanical energy to do work. Which belongs to the problem of energy conversion efficiency of the motor in the non-standard environment. When the motor is unloaded, the motor does not make any beneficial contribution to the conversion of mechanical energy. Since the motor has no efficiency, the motor is still consuming power! In the actual production process, the efficiency of the motor is constantly changing from 0% to most of the rated power. It is necessary to rely on technical means to improve the actual use efficiency of energy, save energy through technical means, and make the motor run economically according to different working conditions.

I have systematically expounded the related technologies and principles in previous blog posts, so I won't repeat them here. Here's an analysis of energy-saving investment in our company's energy-saving products: As the motor is widely used, I only do energy-saving investment analysis in typical application areas, while other related application areas depend on different working conditions, and the actual effect shall prevail.

Investment analysis of economic operation and energy saving reconstruction project of motor and its working system in oil field pumping unit;

For a long time, the motor used on the pumping unit in oil production in the oil field, due to the structure of the beam pumping unit itself and the geological reasons of the oil layer, causes the load of the pumping unit to be a variable load with impact. In order to make the motor run stably and ensure safe production, the motor is equipped according to the larger power required by the pumping unit's limit work. In addition, the impact of the "generator effect of motor" on the original power under the special working conditions of the oil field has seriously damaged the power supply quality of the power grid.

The electric power is wasted, so most of the motors used in pumping units are in light-load operation, and some of them are in no-load operation. The actual efficiency of the motors only reaches 20%-30%, resulting in great energy waste.