论文部分内容阅读
乳化液泵站是长壁综采的关键设备,泵站的效率是决定液压支架移架速度和支护质量的重要因素,直接影响高产高效工作面的生产效率.当泵站活塞与缸体间隙过大或内部阀组磨损超限产生严重的内部泄漏时,泵站容积效率降低,输出流量不能达到额定值.由于乳化液泵站属于高压流体发生设备,系统内压力一般都在30MPa以上,使用人员往往仅凭经验和感觉判定设备状态正常与否.由于使用和维修人员的技术水平差距很大,又没有诊断的统一标准和仪器,所以许多泵站长期带病工作,内泄漏十分严重,当其性能降低到一定程度时,便会造成停产.
Emulsion pump station is the key equipment for longwall fully mechanized mining.The efficiency of pump station is an important factor that determines the speed and support quality of hydraulic support, which directly affects the production efficiency of high productivity and high efficiency workface.When the pump station piston and cylinder clearance Excessive internal or internal valve group wear out when there is a serious internal leakage, the pumping station volumetric efficiency is reduced, the output flow can not reach the rated value.As the emulsion pump station belongs to the high pressure fluid generating equipment, the system pressure is generally above 30MPa, the use of Due to the large gap between the technical level of the service personnel and the maintenance staff and the lack of uniform standards and instruments for diagnosis, many pump stations suffer from long-term sickness and the internal leakage is very serious. Its performance is reduced to a certain extent, it will result in discontinued.