Energy-saving intelligent control system and method for air compressor set

Abstract

The invention discloses an energy-saving intelligent control system for an air compressor set, which comprises an intelligent flow control system, an intelligent electric efficiency control system and a pressure container. According to the air consumption conditions monitored in time by a pressure sensor in an air supply main-pipe network of the air compressor set and air-consuming places, a sampling regulation controller and an execution controller regulate on-spot air pressure through an executing mechanism in time so as to maintain constant-pressure air supply in the pipe network in an aircompression system and prevent energy waste caused by pressure fluctuation of the pipe network; and a programmable logic controller controls the switching and operation of the controlled air compressor set, so the phenomenon that unloaded electricity does idle work is eliminated. The energy-saving intelligent control system of the air compressor set has the advantages of rational structure, high automation and obvious energy-saving effect. Meanwhile, the invention also discloses an energy-saving intelligent control method for the air compressor set.

Description

technical field [0001] The invention relates to an energy-saving intelligent control system of an air compressor set, and also relates to an energy-saving intelligent control method of an air compressor set. Background technique [0002] Among the many energy sources used, compressed air is one of the most popular energy sources after electricity. Industry, mining, engineering, medical and even agriculture have increasingly wide applications, especially in the industrial use and its considerable amount. In view of the fact that compressed air has been widely used in all walks of life, under the premise of large-scale and automatic factories, the use of compressed air is increasing day by day. While the air compressor is producing energy / compressed air, it is also consuming a lot of electricity. With a common 100PsiG (7Kg / cm 3 G) Compressed air system as an example, every 100CFM of compressed air needs to consume about 20HP of electric energy. In the current industry, ther...

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Problems solved by technology

[0005] In actual operation, the proportion of light-load operation time is often very high, which causes huge waste of energy; in addition, frequent loading and unloading of air compressors causes large fluctuations in grid voltage; air compressors are always in high-speed operation , resulting in increased mechanical failures and increased body temperature; the air compressor runs with a lot of noise, which is generated by high-speed operation on the one hand, and generated when the air valve operates on the other hand; the motor has low operating efficiency and high energy consumption, although the air compressor When unloading, the load of the motor is small and the power consumption is small, but the power factor of the high-power motor is very low at light load

[0006] In addition, the configuration of the air compression system in many factories is larger than the actual air consumption, that is, the air supply capacity fully meets the requirements of the air consumption; The on-site air pressure is unstable, the pressure of the pipe network fluctuates greatly, and energy is wasted seriously

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