Multi-branch joint adjustment method of mine ventilation based on sensitivity

IF 1.1 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

International Journal of Ventilation Pub Date : 2022-05-23 DOI:10.1080/14733315.2022.2077523

Haiqing Hao, Shuguang Jiang, Kai Wang, Yuchen Zhang, Zhengyan Wu

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引用次数: 3

Abstract

Abstract The sensitivity analysis is an important analysis method to realize the intelligent control of branch air volume for the mine ventilation network. Aiming at the current situation that the ventilation on-demand (VOD) regulation cannot meet the large demand for air volume in specific air consumption branches in mine, this paper proposed a multi-branch wind resistance joint regulation method based on sensitivity analysis of the ventilation network. Based on the sensitivity theory, the concept of sensitivity change rate was proposed to quantitatively analyze the change law of the sensitivity of branch air volume to multi-branch air resistance, and the calculation formula of the sensitivity change rate matrix was obtained. The Lagrangian interpolation method is used to further optimize the relationship between air volume sensitivity and wind resistance. By using the loop air volume method to calculate and analyze a large number of ventilation networks, the adjustable range of wind resistance was determined and the air volume dispatching calculation model for multi-branch was established, which can more efficiently, accurately, and reliably adjust the branch air volume. This theory was applied to the optimal selection of regulating branch set and stability analysis of branch air volume. Finally, the rationality of this theory is verified through case analysis. In addition, this theory can also be applied to the preparation of emergency plans and the rapid prediction of the changing trend of the branch air volume during the disaster period.

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基于灵敏度的矿井通风多分支联合调节方法

摘要灵敏度分析是实现矿井通风网络分支风量智能控制的重要分析方法。针对矿井特定风耗分支按需调节无法满足大风量需求的现状，提出了一种基于通风网络敏感性分析的多分支风阻联合调节方法。基于灵敏度理论，提出了灵敏度变化率的概念，定量分析了支路风量对多支路空气阻力敏感性的变化规律，得到了灵敏度变化率矩阵的计算公式。采用拉格朗日插值法进一步优化风量灵敏度与风阻之间的关系。采用循环风量法对大量通风网络进行计算分析，确定风阻可调范围，建立多支路风量调度计算模型，能够更加高效、准确、可靠地调节支路风量。将该理论应用于调节支机组的优化选择和支风量的稳定性分析。最后，通过案例分析验证了该理论的合理性。此外，该理论还可应用于灾害期间应急预案的编制和支风量变化趋势的快速预测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Ventilation CONSTRUCTION & BUILDING TECHNOLOGY-ENERGY & FUELS

CiteScore

3.50

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： This is a peer reviewed journal aimed at providing the latest information on research and application. Topics include: • New ideas concerned with the development or application of ventilation; • Validated case studies demonstrating the performance of ventilation strategies; • Information on needs and solutions for specific building types including: offices, dwellings, schools, hospitals, parking garages, urban buildings and recreational buildings etc; • Developments in numerical methods; • Measurement techniques; • Related issues in which the impact of ventilation plays an important role (e.g. the interaction of ventilation with air quality, health and comfort); • Energy issues related to ventilation (e.g. low energy systems, ventilation heating and cooling loss); • Driving forces (weather data, fan performance etc).