引风机液力耦合油管振动原因分析及对策.docVIP

/ / / / 引风机液力耦合器油管振动原因分析及对策 摘要：对三河发电有限责任公司 3# 、 4# 炉引风机液力耦合器油管振动过大的原因进行分析，通过调整工作油压力值及合理布置管道支撑架，有效降低了管路振动，消除其对发电机组安全运行的威胁。 关键词：引风机；液力耦合器；油管；振动；压力 中图分类号： TH43 文献标识码： B Reason Analysis and Countermeasure on the Vibration of the Oil Pipe of Induced Draft Fan Fluid Coupling Abstract: This paper has analyzed the reason of excessive vibration of the oil pipe of the induced draft fan fluid coupling in Sanhe Power Plant No.3 and No.4 boiler. Through adjusting work oil pressure and installing pipe carriage reasonably, the vibration is effectively reduced and the threat to power unit’s safe and economic operating is eliminated. Key words: induced draft fan; fluid coupling; oil pipe; vibration; pressure 1 液力耦合器的工作特点 1 the working characteristics of hydraulic coupler 　　液力耦合器是以液体为工作介质的一种非刚性联轴器，输入轴与输出轴间靠液体联系，工作构件间不存在刚性联接，具有柔性传动、减缓冲击、隔离扭振的功能，可延长启动时间，降低启动电流，使动力机轻载启动，解决沉重大惯量负载启动困难问题，过载保护原动机。调速型液力耦合器还具有无级调速功能，应用于风机、水泵节能效果显著。 Hydraulic coupler based on liquid working medium of a kind of rigid coupling, between the input shaft and output shaft by liquid contact, work there is no rigid connection between components, with a flexible drive, slow shocks, isolation function of torsional vibration, can prolong the startup time, reduce the starting current, make the engine start light load, solve the problem of heavy large inertia load start-up difficulties, overload protection prime mover. Speed control type hydraulic coupler with stepless speed regulating functions, also applies to the fan, water pump energy saving effect is remarkable. 2 　设备概况 2 equipment status 　　三河发电有限责任公司 3# 、 4# 炉为东方锅炉厂生产的 DG1025/18.2-II6 锅炉。引风机为成都电力机械厂生产的 Y4-2 × 60-14No29F 双吸双支离心风机。 Sanhe power generation limited liability company 3 #, 4 # boiler produced by dongfang boiler factory for DG1025/18.2 II6 boiler. Induced draft fan for chengdu power machinery factory production of Y4-2 x 60-14 no29f double suction double a centrifugal fan. 　　引风机采用液力耦合器和烟气进口挡板联合调节的方式，液力耦合器共 4 台，均为德国福伊特驱动技术有限公