Theoretical analysis and test of load flow resistance of fluid supply system in fully mechanized mining face
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摘要: 通过理论分析推导了环形供液模式下综采工作面供液系统负载流阻损失计算公式，并以黄陵煤矿1号工作面供液系统为例，得出了工作面不同液压支架处负载流阻损失分布；在工作面每隔20架支架安装1个压力传感器来测试供液系统管路压力，得到的压差与理论计算结果接近，验证了负载流阻损失计算公式的正确性；分别在采煤机速度为8，12 m/min，单泵供液及双泵供液模式下，通过试验得出了供液系统泵站出口压力分布，并统计了系统卸载时间比与加载时间比，为后续跟机自动化过程中供液系统智能控制和优化提供了参考。Abstract: Computational formulas of load flow resistance loss of fluid supply system in fully mechanized mining face under circular fluid supply mode were derived through theoretical analysis. Taking fluid supply system of No.1 working face in Huangling Coal Mine as an example, load flow resistance loss distribution at different hydraulic support position in working face was obtained. Pipeline pressure in the fluid supply system was tested through installing one pressure sensor every twenty supports in the working face. Pressure difference approaches the theoretically calculated value, which verifies correctness of the computational formulas of load flow resistance loss. Pump outlet pressure distribution in the fluid supply system was obtained through test under shearer speed of 8 m/min or 12 m/min with single pump or double pumps fluid supply mode separately. Meanwhile, unloading time ratios and loading time ratios of the fluid supply system were counted so as to provide a reference for intelligent control and optimization of fluid supply system during automatic following control.
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期刊类型引用(3)
1. 葛利俊，刘学文，毕琳琳. 水力泵在气井排采中的应用. 设备管理与维修. 2022(18): 95-97 . 
百度学术
2. 刘磊. 煤层气精准排采监控系统. 工矿自动化. 2020(03): 89-94 . 本站查看
3. 徐启. 基于PLC的液压无杆排采系统研究. 机电工程. 2019(08): 846-850 . 百度学术
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