本文详细介绍了某300MW机组在起动及带负荷运行过程中产生振动异常的处理情况。
The paper gives a particular analysis on a 300MW turbogenerator that the abatement process of the abnormal vibration on the turbine during the first start-up and running with load.
现场实测结果表明,利用柴油机表面振动信号来诊断柴油机主轴瓦异常磨损故障是可行的。
The real detecting result shows that it is feasible to use the engine surface vibration signal to diagnose main bearing shell abnormal wear trouble.
如果在跑合阶段预先觉察出异常温升、泄漏、振动和噪声时,应停机检查。
If the running-in stage to advance aware of abnormal temperature rise, leakage, vibration and noise, they should check stands.
注意运转时有无振动,异常响声。
如果产生不正常的温升(异常噪音、振动),必须停车查明原因。
If there arises any abnormal temperature (unusual noises, vibration), it is necessary to stop the machine and investigate the cause.
两台泵在运转过程中均未见有机械密封泄漏现象发生,也未见有异常的振动和噪声。
No mechanical seal leakage or abnormal vibration or noise occurred to the two pumps during operation.
通过分析冷却塔风机故障的频谱特征,诊断了风机运行异常振动原因并加以解决,确保了风机的正常运行。
The cause of fan abnormal vibration is diagnosed by analyzing the spectrum characteristic of fan trouble for cooling tower. The normal running of fan is guaranteed.
机构铰接副处过大间隙将引起异常的振动与噪声,加速了疲劳与磨损,严重地影响了机器的动态性能。
Excessive clearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.
如果转子机械系统存在潜在的缺陷,那么在转子启动过程的振动信号中就会出现异常现象。
If latent defects exist in the rotor machinery system, rotor vibration signals in the whole runup process can present abnormal phenomenon.
在运转中,如发现有异常声响和振动时,应立即停车。
Stop the pump to check if there is any abnormity noise or vibration during operation.
轧钢机的异常振动是造成钢材表面质量下降的主要原因。
Its abnormal vibrations are main causes leading to falling down of surface qualities.
针对山东黄岛发电厂3号机组再热管道出现的异常大幅度振动,进行了原因分析;
Regarding the abnormal large vibration of reheat steam pipe of unit 3 for Shandong Huangdao Power Plant, the causes were analyzed.
关于轧机异常振动的分析很多,大多是以轧制机理为基础进行的。
Most of analyses on abnormal vibrations of the rolling mill are mainly based on the rolling mechanics.
针对某自卸汽车底盘在使用过程中出现的异常振动问题,进行了道路行驶试验研究。
The road tests of the dump truck were carried out based on abnormal vibration of dump truck chassis.
介绍了励磁变压器因二次侧负荷不平衡引起振动异音及铁心温度异常升高故障的原因分析及处理。
Analysis and treatment of the faults of vibration unusual sound and core temperature abnormal rise in exciting transformer, caused by the unbalance of the secondary side load, are introduced.
烧损原因包括保养不当、部件故障、滤清器堵塞、轴瓦质量不高、配合间隙不合适以及柴油机异常振动等。
The reasons include inappropriate maintenance, component failures, filter blockage, bad crankshaft bearing shells, inappropriate fit clearances, abnormal diesel engine vibration and etc.
介绍汽轮机异常振动的特征表现、原因分析及预防措施。
The paper introduces the characterization, reason analysis, and precautionary measure of one turbine's abnormal vibration.
介绍了某矿井主通风机运行时的异常振动现象。
The abnormal vibration of main fan operation in a certain mine is introduced.
水中掺入空气不但会影响管道的水力特性,同时是造成管道振动、噪音,甚至异常破坏的主要原因。
Mingling of air into water would not only affect the hydro-dynamical characteristics of pipe flow, but also cause vibration noise, and even abnormal damages in pipes.
介绍引起大型中速柴油机横向异常振动的一个主要原因,据此提出诊断方案并进行不解体检测。
The one of main reasons, which can cause the abnormal block vibration, is introduced. A dis-decomposing diagnosing scheme is put forward based on the reason.
针对目前国内轴承振动测量仪不能识别轴承异常声的问题,设计了一种新的轴承故障诊断仪器系统。
Aiming at that the bearing vibration measure instrument in our country can't indentify the abmomal sounds of the bearing, the new instrument system has been designed for bearing failure diagnosis.
该仪器通过测量柴油机缸盖表面的振动信号,提取特征参数,对柴油机的气阀漏气与间隙异常进行诊断。
The instrument measures vibration signal of diesel cylinder header, extracts the characteristic parameters, to diagnosis for fault of leakage and abnormal space of valve.
如果在跑合阶段预先觉察出异常温升、泄漏、振动和噪声时,应停机检查。
If in the running-in stage in advance detect abnormal temperature rise, leakage, vibration and noise, should stop check.
如果在跑合阶段预先觉出异常温升、泄漏、振动和噪声时,应机检查。
If in the running-in stage in advance the abnormal temperature rise, leakage, vibration and noise, should machine inspection.
如果在跑合阶段预先觉察出异常温升、泄漏、振动和噪声时,应机检查。
If in the running-in stage in advance detect abnormal temperature rise, leakage, vibration and noise, should machine inspection.
但有报道认为一部分耳鸣的成因谏于自发性耳声发射,这可能是由于耳蜗基底膜的异常振动所造成。
But has the report to think that part of tinnitus the origin admonishes in the spontaneous ear sound launch, this possibly is because the cochlea basilar membrane's unusual vibration creates.
针对转子振动时间序列中异常数据的检测问题,采用欧氏距离进行匹配计算,在实数域实现了负向选择算法。
For the anomaly detection in the vibration time series of the rotor system, a real-valued negative selection algorithm based on Euclidean distance has been implemented.
提出了电动机滚动轴承引起异常振动噪声的识别方法,分析了异常振动噪声形成的原因,提出了消除异常振动噪声的方法。
This paper presents the methods to distinguish abnormal vibrational noise for rolling bearing of motor, analyzes the cause of formation, and presents the method to remove it.
高温、高压、高压差的蒸汽调节阀中的流动不稳定导致异常的振动,造成阀门的磨损及阀杆破坏以及流动中的压损。
The unsteady flow in the high pressure steam valve cause unusual vibration, the valve pole to be destroyed, the pressure while flowing to be lost, etc.
这种晶格振动的异常行为,是超导转变的前驱效应。
Such anomalous behavior is thought to be a precursor effect of superconductivity.
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