Coal mine local ventilation parameter accurate monitoring and abnormity early warning system and method

Abstract

The invention discloses a coal mine local ventilation parameter accurate monitoring and abnormity early warning system and method. The system is composed of an air duct air volume accurate monitoringand analysis module, a local ventilation system power consumption analysis module, an air volume supply and demand matching analysis module and a ventilation fault research and judgment early warningmodule. The air volume accurate measuring, monitoring and analysis module comprises various sensors and monitoring substations, and local air volume accurate monitoring is achieved by optimally arranging air volume measuring points of an air duct and calculating and verifying kinetic energy of monitoring speed pressure. The ventilation system power consumption analysis module comprises a local ventilation resistance parameter monitoring and wind pressure on-way loss model and is used for realizing visual monitoring and resistance abnormity early warning of local resistance. The air volume supply and demand matching analysis module predicts fan adjustment according to the air volume data and advanced simulation of air volume supply and demand, and establishes a local ventilation air volumesupply and demand matching model. The ventilation fault research and judgment early warning module extracts a characteristic sample and precursor information of a local ventilation fault state according to the monitored multivariate environmental parameters to realize development situation research and judgment early warning of the local ventilation state.

Description

technical field [0001] The invention relates to the field of safety assurance of local ventilation of a coal mine ventilation system, in particular to a system and method for precise monitoring and abnormal early warning of local ventilation parameters of a coal mine. Background technique [0002] A stable and reliable mine ventilation system is the guarantee of safe production in coal mines. A reasonable and reliable ventilation system can not only provide sufficient fresh air flow for the mine and save a lot of ventilation costs, but also improve the disaster resistance of the mine and reduce accidents. The ventilation system is the most important part of the "three defenses". In recent years, with the depth of mine mining and the development of coal mine mechanization, the excavation length has become longer and longer, and local ventilation has become the focus and difficulty of daily ventilation safety management. Manually collecting ventilation parameters and calculati...

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Problems solved by technology

[0002] A stable and reliable mine ventilation system is the guarantee of safe production in coal mines. A reasonable and reliable ventilation system can not only provide sufficient fresh air flow for the mine and save a lot of ventilation costs, but also improve the disaster resistance of the mine and reduce accidents. The ventilation system is the most important part of the "three defenses". In recent years, with the depth of mine mining and the development of coal mine mechanization, the excavation length has become longer and longer, and local ventilation has become the focus and difficulty of daily ventilation safety management. Manually collecting ventilation parameters and calculating the ventilation environment can no longer meet the needs of modern and intelligent mines. It is not only time-consuming and laborious, but also cannot quickly reflect the ventilation status of the tunneling roadway. The only source of fresh air flow. Currently, the ventilation parameters of the air duct in the mine are collected manually. There is no accurate and reliable monitoring method to reflect the ventilation status and abnormal warning.

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