核电半速机组模拟轴系与弹簧隔振基础联合振动试验台设计

发布时间：2018-03-04 22:09

  本文选题：核电半速机组　切入点：轴系　出处：《动力工程学报》2017年11期 　论文类型：期刊论文

【摘要】：提出了一种轴系与弹簧隔振基础联合振动试验台的设计思路,以某百万千瓦级核电半速机组为原型,根据几何尺寸比拟及动力特性相似原则,成功搭建了原型机组尺寸1/10的试验台,为考察试验台设计合理性进行了初步调试.结果表明:试验台轴系转速可达10 000r/min以上,运转过程中轴振、瓦振、润滑油温度和压力等参数均正常可控,其变化趋势符合设计预期,且系统各部件在调试检查中均未出现异常,基本满足设计安全性要求;瓦振峰值转速与轴振峰值转速存在一定差异,且部分瓦振峰值转速与弹簧隔振基础顶板模态测试频率一致,说明弹簧隔振基础对轴系振动特性的影响不容忽视;初步调试结果为保障试验台后续试验研究的安全可靠运行奠定了基础.
[Abstract]:In this paper, a design idea of a combined vibration test bed of shafting and spring isolation foundation is presented. Based on the principle of geometric size analogy and similarity of dynamic characteristics, a million-kilowatt nuclear power half-speed unit is used as the prototype. The test bed of prototype unit size 1/10 has been successfully built, and preliminary debugging has been carried out to investigate the rationality of the design of the test bed. The results show that the rotating speed of the shaft system of the test bed can reach more than 10 000 r / min, and the shaft vibration and the tile vibration in the course of operation. The parameters such as temperature and pressure of lubricating oil can be controlled normally, and the variation trend is in line with the design expectation, and there are no anomalies in the debugging and checking of all parts of the system, which basically meet the design safety requirements. There are some differences between the peak rotational speed of the tile vibration and the peak speed of the shaft vibration, and some of the peak speed of the tile vibration are the same as the modal test frequency of the roof of the spring isolation foundation, which indicates that the influence of the spring isolation foundation on the vibration characteristics of the shaft system can not be ignored. The preliminary test results lay a foundation for the safe and reliable operation of the test bed.
【作者单位】： 上海发电设备成套设计研究院有限责任公司;
【基金】：国家科技重大专项课题资助项目(2012ZX06002-017-01-04) 上海发电设备成套设计研究院有限责任公司青年创新基金资助项目(201606058Q)
【分类号】：TM623.3
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本文编号：1567509