CC60型汽轮机组振动故障测试分析与处理

介绍了CC60-8.83/4.12/1.47型汽轮机组启动过程中振动异常的情况。通过对机组振动数据的测试分析,得出发电机转子热不平衡是引起振动的主要原因,并采用动热平衡的方法消除振动,确保了机组安全运行。     

D60-82鼓风机振动监测分析

通过分析D60-82鼓风机的振动情况，判定为：锁紧背帽松动引起转子动不平衡是机组振动起标的主要原因，因此提出了相应的措施，消除了故障。     

海洋平台往复式压缩机组振动控制设计

海洋平台往复式压缩机组由于安装在柔性的平台结构上,相对陆用机组往往更易发生大的振动,且振动发生后的机组维修整改成本大、后果影响严重。为了控制海洋平台往复式压缩机组的振动,以某海洋平台往复式压缩机组振动控制设计为例,通过进行气流脉动分析,减小了机组脉动不平衡激振力;通过进行机械振动分析,抑制了机组设备及管道的振动水平;以及通过进行机组底橇和平台支撑结构的振动分析,降低了机组及平台结构的振动水平等。分析结果满足标准要求,为今后海洋平台往复式压缩机组振动控制设计提供技术方法和参考依据。     

接触刚度和热平衡对汽轮机的影响及对策

文章介绍了某煤化工企业发电机组试车过程中座缸安装的2号轴承振动大及汽轮机负胀差超报警值的问题,通过理论分析和现场测量计算分析出额外盲板力对机组接触刚度的影响,以及轴封系统设计缺陷引发的热不平衡对座缸式轴承振动和汽轮机胀差的影响。针对问题原因提出了相应对策,并对机组实施了技术改造,使问题得以彻底解决。     

汽轮发电机组振动原因分析

利用振动及频谱分析原因，对汽轮发电机组试车中遇到的一系列振动问题进行了分析。认为引起机组振动过大的主要原因是齿轮箱轴承存在油膜涡动及油膜振荡，轴系存在不对中、不平衡所致。齿轮箱的小齿轮轴在轴承间隙偏大、轴系不对中及大齿轮工作频率的振动下，易激发油膜涡动及油膜振荡。     

螺杆压缩机振动大原因分析及处理措施

针对螺杆压缩机频繁出现振动大的故障进行原因分析,得出齿轮损坏、转子弯曲及动不平衡是引起机组振动大的要因的结论,并采取更换新齿轮,对转子弯曲部位进行堆焊、车削以及去重法消除动不平衡等方法彻底消除了故障现象。这一案例也为同类型设备故障的处理提供了参考依据。     

裂解气压缩机异常振动原因分析与对策

介绍了裂解气压缩机在运行过程中出现振动波动的全过程,结合机组所在的工艺系统和在线监测的具体情况对引起裂解气压缩机振动的原因进行了初步原因分析,并针对引起振动的原因制定了机组特护运行的应对措施。同时介绍了裂解气压缩机大修开盖解体后各机械部件的具体情况,指出引起振动的原因为压缩机平衡迷宫结垢引起的气流激振,同时针对该压缩机的具体结构特点对其隔板和密封进行了防气流激振的改造,改造后机组运行平稳。     

裂解气压缩机振动故障分析及解决措施

文章通过对裂解气压缩机的在线监测数据和机组运行工艺条件,综合分析得出机组振动波动的主要原因.随着操作时间的延长,压缩机叶轮和级间的流道表面聚合结焦导致转子动不平衡,聚合物的不断累积使压缩机级间疏齿密封被聚合物填满,造成压缩机转子与气封发生碰磨现象,从机组开盖检修的情况验证了故障诊断的准确性,并针对转子磨损情况提出了相应的解决措施.     

状态监测在离心压缩机维修中的应用

为解决榆济输气管道榆林首站2台离心式压缩机振动异常问题,利用状态监测技术,运用多种图谱对压缩机振动信号进行了综合分析,对机组气动性能进行了计算,确定了振动故障的原因是转子结垢导致的转子不平衡,同时对维修前后的数据进行了比对。在故障诊断的基础上对压缩机进行了拆解维修,机组振动恢复正常,验证了状态监测技术在离心压缩机维修中的实用性和有效性,该处理方案对今后同类设备诊断维修有一定的参考意义。     

主风机轴承振动超标的诊断与解决措施

烟气能量回收机组是重油催化裂化装置节能降耗、实现达标的关键设备 ,主风机因轴承振动超标造成机组停机 ,通过对 7个主要因素的分析 ,判定为转子不平衡。采用加配重的措施进行现场动平衡后 ,取得了明显的效果。     

塔里木盆地塔中地区生物礁特征及分布

塔里木盆地塔中地区中、上奥陶统发育多种类型生物礁，主要造礁生物包括海绵、托盘类、层孔虫、珊瑚、隐藻类、苔藓虫、蓝绿藻、绿藻、管孔藻科红藻等，主要礁体类型为灰泥丘和少量的骨架礁、障积礁。分析钻探揭示的生物礁特征，结论是灰泥丘主要形成于棚内及棚缘内带环境，骨架礁与障积礁主要形成于棚内与棚缘环境。通过沉积相分析和地震反射特征研究，预测塔中地区的陆棚边缘相带和塔中北部斜坡的中部地带，有望找到带状或断续带状分布的生物礁带。塔中1号断裂西墙的顺托果勒西区块已发现6个地震异常反射体，从其发育层位、所处环境和内部反射特征来看，极可能是生物礁丘。图2表2参6     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.     

Oil Refining

Current data on refinery products: LPG, mogas, naphtha, aviation fuel and Kerosene, gas/diesel oil, residual fuel oil, other and total products, and total products. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Average production is thousand barrels per day. Updated on a monthly basis. Current data on crude oil refinery runs. Countries covered: Canada, the United States, Japan, Australia, Belgium, France, Germany, Greece, Italy, Netherlands, Spain, the United Kingdom. Updated on a monthly basis.