Automatic biological aerated filter detection and control device

Abstract

The invention discloses an automatic biological aerated filter detection and control device. The detection device comprises an online water level detector, an online turbidity meter and an online dissolved oxygen meter; the control device comprises a PLC (Programmable Logic Controller) and a computer connected with each other, an acoustic control sensor connected with the PLC, an electrical proportional solenoid valve connected with the acoustic control sensor, and a water inlet regulation module, an air compressor control module, a solenoid valve control module and a backwashing control module which are respectively connected with the PLC; the automatic detection device is mutually connected with the electrical proportional solenoid valve of the control device and controlled to perform automatic detection by the PLC and the computer. According to the device disclosed by the invention, the water level, turbidity and dissolved oxygen concentration of the filter are always detected, the detection data is transmitted to the computer and compared with process set values by the computer, and the control device is started to control the water inlet flow and aeration of the filter according to the comparison results, so that the degree of automation is high, the aeration is uniform, and long-term stable operation of the biological aerated filter is guaranteed.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an automatic detection and control device for an aerated biological filter based on PLC and computer control. Background technique [0002] At present, most domestic biological aerated filters are controlled by a very simple manual control system with a single function. In terms of automatic control, programmable logic controllers (PLC) are widely used in sewage plants at home and abroad. This system can Distributed control is realized, the system is stable, and the operation is simple, etc.; but the PLC has not fully perfected the real-time monitoring function. In order to improve the automation of the biological aerated filter and make the aeration uniform, it needs to be continuously improved. Contents of the invention [0003] The purpose of the present invention is to provide an automatic control and control device for biological aerated filter based on PLC and computer con...

AI Technical Summary

Problems solved by technology

[0002] At present, most domestic biological aerated filters are controlled by a very simple manual control system with a single function. In terms of automatic control, programmable logic controllers (PLC) are widely used in sewage plants at home and abroad. This system can Realize distributed control, stable system, easy operation, etc.; but the PLC has not fully perfected the real-time monitoring function, in order to improve the automation of the biological aerated filter and make the aeration uniform, it needs to be continuously improved

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