Air compressor energy saving system

Abstract

The invention discloses an air compressor energy saving system. A power supply is connected with a power metering unit, the power metering unit is connected with a frequency converter, and the frequency converter is connected with an energy saving controller. The energy-saving controller is provided with a man-machine interface, and the energy saving controller is connected with an air compressorgroup. An air inlet pipeline is connected to one end of the air compressor group, and the air inlet pipeline is connected with an air supply energy-saving management unit, a dryer joint control unit and an air flow metering unit. An air storage tank is connected to the other end of the air compressor group, and the air storage tank is connected with a pressure sensor. A cooling water circulation monitoring unit is connected with the air storage tank, a cooling water valve joint control unit is connected with the cooling water circulation monitoring unit, and equipment using air is connected tothe other end of the air storage tank. After the air compressor energy saving system is used, the empty-loading ratio of an air compressor is decreased, the pipe network pressure fluctuation is decreased, the air compressor operates stably, good energy conservation is achieved, and in addition to the energy saving effect, the management level and the automation level of a compressed air system are improved meanwhile.

Description

technical field [0001] The invention relates to the technical field of a compressed air system, in particular to an energy-saving system for an air compressor. Background technique [0002] An air compressor is a device used to compress a gas. Air compressors are constructed similarly to water pumps. Most air compressors are reciprocating piston, rotating vane or rotating screw. Centrifugal compressors are very large applications. [0003] There are many problems in the control mode of the frequency conversion power-saving device used in the existing air compressor. When starting up, the gas storage tank is in the working state, which causes the air pressure to increase and slows down, which also affects the quality of work and wastes electric energy; the existing Frequent loading and unloading of air compressors can easily lead to unstable air supply pressure. At the same time, frequent operations can easily lead to waste of electrical energy; 10% of the electrical energy c...

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Problems solved by technology

[0003] There are many problems in the control mode of the frequency conversion power-saving device used in the existing air compressor. When starting up, the gas storage tank is in the working state, which causes the air pressure to increase and slows down, which also affects the quality of work and wastes electric energy; the existing Frequent loading and unloading of air compressors can easily lead to unstable air supply pressure. At the same time, frequent operations can easily lead to waste of electrical energy; 10% of the electrical energy consumed by existing air compressors is converted into compressed air, and the remaining 90% is converted into For heat energy, there is a large gap in the ratio of compressed air to electricity. The energy saving of air compressors lies in the timely treatment of air leakage problems and the avoidance of improper air usage.

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