An intelligent monitoring and control device and control method for coal mine ventilation parameters

Abstract

Disclosed is a coal mine ventilation parameter intelligentized monitoring adjustment and control device and control method. The coal mine ventilation parameter intelligentized monitoring adjustment and control device consists of a ground monitoring center, an industrial Ethernet communication system, a ground draught fan frequency conversion monitoring system and a downhole air net monitoring system. The ground monitoring center consists of a central station and a server, wherein the central station consists of PLC controllers. The industrial Ethernet communication system consists of optical network, an Ethernet module and an exchange board. The draught fan frequency conversion monitoring system consists of a draught fan working condition monitoring sensor, a monitoring substation and a frequency conversion control assembly. The downhole air net monitoring system consists of a ventilation and environmental parameter monitoring sensor, a monitoring substation and a ventilation facility monitoring device. In system application, minimum remainder branch needs to be determined, the blast capacity of the minimum remainder branch needs to be monitored, air net structural features are analyzed, a cellular automaton model is established, and a optimal relevance branch ventilative resistance regulation scheme is calculated; and according to the needed blast capacity of the branch, the total needed blast capacity of an air net is calculated in an iterative solution, the needed operating frequency is found in a draught fan performance curve library, and an advanced verification prospective regulation result is calculated through the air net.

Description

technical field [0001] The invention belongs to the field of intelligent monitoring of coal mine ventilation systems, in particular to a coal mine ventilation parameter intelligent monitoring and regulating device and a control method thereof. Background technique [0002] Mine ventilation system is one of the basic systems of coal mine production. It is responsible for sending sufficient fresh air to the underground working place, diluting and discharging toxic and harmful gases, dust and heat and humidity in the underground. It is a well ventilation network determined by the ventilation mode. , the main ventilator that drives the air flow, and the ventilation structures that control the air flow. Setting reasonable basic air flow parameters of mine ventilation system is the most important link to ensure mine safety production, improve labor safety and health conditions of underground personnel, and prevent and resist disasters. In order to ensure the safe, stable and econ...

AI Technical Summary

Problems solved by technology

The traditional frequency converter adjustment is a phased adjustment, and no intelligent air volume adjustment and management system has been established; most of the traditional associated branch air resistance adjustments use manual adjustment or mechanical automatic adjustment, which has not formed an intelligent overall adjustment of the entire wind network system

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