Goaf carbon dioxide self-adaptive regulation and control system and method

An adaptive regulation, carbon dioxide technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of constant use, poor simulation convergence, huge amount of calculation result data, etc., to achieve strong practicability, The effect of widely promoting the application value

Pending Publication Date: 2022-06-17
NORTH CHINA INST OF SCI & TECH +1
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Problems solved by technology

The use of these basic parameters mostly relies on empirical formulas, and the simulation results obtained are only approximate solutions of the flow

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  • Goaf carbon dioxide self-adaptive regulation and control system and method
  • Goaf carbon dioxide self-adaptive regulation and control system and method
  • Goaf carbon dioxide self-adaptive regulation and control system and method

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[0036]下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。

[0037]参见图1～4，本发明实施例提供一种采空区二氧化碳自适应调控系统与方法，该系统包括：

[0038]数据处理模块，

[0039]用于建立惰化参数反演模型；用于接收空区内二氧化碳浓度，采用采空区二氧化碳监测数据对惰化参数反演模型进行反馈校正，构建二氧化碳灌注参数优化后的惰化参数反演模型；其中，所述惰化参数反演模型，用于根据预测先行的采空区二氧化碳流量进行数值模拟，建立多场合耦合作用下的二氧化碳在破碎煤岩体中的吸附特征及扩散运移模型、采空区二氧化碳输运耗散模型；且用于根据二氧化碳在破碎煤岩体中的吸附特征及扩散运移模型和采空区二氧化碳输运耗散模型，建立二氧化碳灌参数变化量和安全涌出量的关系，并输出反演后的采空区内二氧化碳流量；二氧化碳自适应调控模块，用于根据二氧化碳灌注参数优化后的惰化参数反演模型计算二氧化碳流量阀门的阈值，二氧化碳流量阀门根据阈值自适应调控二氧化碳流量。

[0040]具体实施方式如下：

[0041]一种采空区二氧化碳自适应调控系统包括：数据采集模块、数据传输模块、数据处理模块、上传显示模块。所述的数据采集模块包括CO浓度传感器、氧气浓度传感器、CH4浓度传感器、二氧化碳浓度传感器、C2H4浓度传感器，用于监测采空区CH4浓度、CO浓度等气体指标，同时将采集数据发送到数据传输模块；所述的数据传输模块包括数据编码和传输，用于将采集数据编码打包，并通过网络传输到数据处理模块；所述的数据处理模块包括监测主机、监测信号A / D转换、数据解码分析，用于接收、处理传输模块的数据，构建惰化参数反演模型；所述的上传显示模块包括数据显示和数据上传，用于将处理好的数据实时显示在屏幕上，并上传到监测主机，二氧化碳自适应调控模块，用于根据二氧化碳灌注参数优化后的惰化参数反演模型对二氧化碳流量阀门自适应调控。

[0042]采空区二氧化碳自适应调控装置现场布置示意图如图3所示。数据采集装置具有数据采集、数据信号接收和发射功能，在采空区中随着工作面推进布置，并用四位数字对其进行编号，前两位代表沿采空区深度方向布置监测...

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Abstract

The goaf carbon dioxide self-adaptive regulation and control method comprises the steps that the carbon dioxide concentration of a goaf is collected, an inerting parameter inversion model is constructed, the carbon dioxide concentration in the goaf is received, goaf carbon dioxide monitoring data is adopted for conducting feedback correction on the inerting parameter inversion model, and the goaf carbon dioxide concentration is obtained. And an inerting parameter inversion model after optimization of the carbon dioxide perfusion parameters is constructed, the threshold value of the carbon dioxide flow valve is calculated according to the inerting parameter inversion model after optimization of the carbon dioxide perfusion parameters, and the carbon dioxide flow valve regulates and controls the carbon dioxide flow in a self-adaptive mode according to the threshold value. According to the method, by constructing a goaf coal spontaneous combustion monitoring and early warning network, a data transmission mode, a data processing mode and the like, goaf carbon dioxide perfusion safety performance automatic detection and perfusion amount automatic control are achieved. The monitoring and early warning method and device are high in practicability and have wide popularization and application values.

Description

technical field [0001] The invention relates to the technical field of coal mining safety, in particular to a system and method for self-adaptive regulation and control of carbon dioxide in goafs. Background technique [0002] Coal spontaneous combustion is one of the main disasters in coal mines. According to the statistics of coal mine fire accidents in China, the United States, India, Poland, Australia and other countries, more than 70% of coal spontaneous combustion fire accidents occurred in gobs. With the increase of depth and intensity of coal mine mining, coal spontaneous combustion in gob areas of deep coal seams under high temperature and high pressure conditions is becoming more and more serious. [0003] Coal spontaneous combustion in goaf is affected by factors such as coal oxidation, heat storage, and pore properties of porous media, among which coal oxidation is the root cause of coal spontaneous combustion. Injecting inert gas into the goaf is one of the ma...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 司俊鸿赵书奇王辉李林李昂陈月霞
Owner NORTH CHINA INST OF SCI & TECH
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