An air compressor energy saving controller

Abstract

The invention relates to an air compressor energy saving controller. The air compressor energy saving controller comprises an air compressor intelligent controller. The air compressor energy saving controller is characterized in that: the air compressor intelligent controller is connected to a programmable controller of the air compressor energy saving controller; the programmable controller is connected to a wireless data transceiver; the air compressor intelligent controller controls a Y contactor and a delta contactor; the programmable controller controls a frequency converter and is connected to a pressure sensor; the frequency converter is connected to a power frequency converter; and the power frequency converter is connected to a main motor of an air compressor. The beneficial effects of the air compressor energy saving controller are that: a control cabinet of the energy saving controller is provided with a man-machine interaction interface, so that an operation state and a control process of the energy saving controller can be fully displayed, state query and parameter modification are convenient, operation states of air compressors in a whole air compression station can be centrally displayed and controlled by operations, and operation and monitoring of the air compressors are convenient; and the wireless data transceiver is provided and can perform remote communication with an upper computer software, thus facilitating central management and control of air compressor data.

Description

technical field [0001] The invention relates to an energy-saving controller, in particular to an energy-saving controller for an air compressor, belonging to the field of energy-saving control. Background technique [0002] The working principle of the screw air compressor: the working principle of the air compressor is that a pair of male and female rotors (or screws) that mesh with each other in parallel rotate in the cylinder, so that the air between the rotor tooth slots continuously produces periodic volume changes. The air is transported from the suction side to the output side along the rotor axis, so as to realize the whole process of suction, compression and exhaust of the air compressor. The air inlet and air outlet of the air compressor are respectively located at the two ends of the housing, and the grooves of the female rotor and the teeth of the male rotor are driven by the main motor to rotate. [0003] At present, when the air compressor is running at power ...

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Problems solved by technology

[0003] At present, when the air compressor is running at power frequency, when the air consumption is stable, it is difficult to match the number of air compressors to be turned on with the air consumption. Generally, the air supply is greater than the air consumption to ensure normal air consumption. That is to say, the actual The air supply volume of the running air compressor is greater than the air consumption required for production, so the air compressor will be loaded and unloaded frequently, resulting in unstable air supply pressure. At the same time, the frequent loading and unloading of the air compressor is also a great waste of electric energy , also caused a great impact on the power grid

[0004] At present, there are also plans for energy-saving transformation of air compressors, but the existing transformation plans are difficult to transform, the transformation process is complicated, there are many places to transform, and the operation failure rate after transformation is high

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