Typical vibration and noise data of turbine runner cavitation, mechanical& hydraulic unbalance, misalignment, penstock resonance, draft-tube resonance, draft tube surging due to pressure pulsation, rough-zone operations, worn seals and generator 120 Hz core resonance are displayed and analyzed. 对于不平衡、涡轮气蚀、不对中、吸水管/尾水管共振、止漏环的腐蚀、尾水管的功率摆动和100Hz的铁心共振等导致水力发电机的振动/噪音做了特征分析。
Hydraulic turbine runner is core part of energy conversion for hydro-power unit, and its structural and mechanical property will directly affect safety, reliability, economic operation for hydro-power unit. 水轮机转轮是水力发电机组能量转换的核心部件,其结构的力学性能直接对水电站机组的安全、可靠、经济运行有着巨大的影响。
The application of diffusing welding technology in manufacturing the runner plates of hot_ runner moulds and the cores of injection moulds was introduced. By adopting the technology, it could optimize the core structure, shorten the moulding time and increasing the plastic parts quality. 介绍了扩散焊接技术在热流道模具分流道板和注射模型芯制造中的应用,采用该技术,可优化型芯结构,缩短成型时间,提高塑件质量。
The runner is a core component of water turbine generator set, and the flow state in a turbine runner directly affects the energy characteristics of the entire machine and the stability of the unit. Therefore, the design of runner is very important. 水轮机转轮是水轮机的一个核心部件,水轮机转轮内的流动状态好坏直接影响整个机器的能量空蚀特性和机组的稳定性,因此转轮的设计尤其重要。