The blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (and oil tank), drip nozzle. The blower operates eccentrically on the rotor offset in the cylinder, and changes the volume between the blades in the rotor slot to suck in, compress, and discharge air. During operation, the pressure difference of the blower is used to automatically send lubrication to the drip nozzle, and drip into the cylinder to reduce friction and noise, while keeping the gas in the cylinder from returning. This type of blower is also called a sliding vane blower. The conveying medium of the blower is mainly clean air, clean gas, sulfur dioxide and other inert gases. Other flammable, explosive, corrosive, toxic and special gases can also be produced and transported on demand.
Nowadays, in all kinds of machinery and electrical equipment in all walks of life in China, the motors that are matched with fans account for about 60% of the national installed capacity of motors, and consume about one-third of the country's total power generation. It is particularly worth mentioning that most fans have the phenomenon of large horse-drawn carts during use. In addition, due to changes in production and technology, it is necessary to frequently adjust the gas flow, pressure, temperature, etc.; many units still use The backward way of adjusting the opening degree of the air baffle or valve is to adjust the flow, pressure, temperature, etc. of the gas. This is actually through artificially increasing the resistance, and at the expense of wasting electrical energy and money to meet the requirements of the process and working conditions for gas flow adjustment. This backward adjustment method not only wastes precious energy, but also has poor adjustment accuracy, making it difficult to meet the requirements of modern industrial production and services, and the negative effects are very serious.
In recent years, with the rapid development of power electronic technology, computer technology, and automatic control technology, electric drive technology is facing a historical revolution, that is, AC speed regulation has replaced DC speed regulation and computer digital control technology has replaced analog control technology. trend. Motor AC frequency conversion speed regulation technology is a major means to save electricity, improve process flow to improve product quality, improve environment, and promote technological progress.
