In order to diagnose the fault of diesel generator, we must first be familiar with the basic structure and working principle of diesel generator

在诊断发电机故障时,重点需要知道柴油发电机的基本配置,比如该发电机组燃油系统是电控的还是机械式的,是机械单体泵还是分配泵,是电控高压共轨还是电控单体泵等.另外也需要知道该柴油机的常用技术参数,如气门间隙,供油提着角,循环供油量,喷油压力等

When diagnosing the generator fault, it is important to know the basic configuration of the diesel generator, such as whether the fuel system of the generator set is electronically controlled or mechanical, whether it is a mechanical single pump or a distribution pump, whether it is an electronically controlled high-pressure common rail or an electronically controlled single pump, etc In addition, we also need to know the common technical parameters of the diesel engine, such as valve clearance, oil supply lifting angle, circulating oil supply, injection pressure, etc

以故障现象和特征为依据诊断故障位置

Diagnose fault location based on fault phenomenon and characteristics

柴油发电机出现故障时,无论是简单故障还是复杂故障,必然会以一定形式表现出来.认真找出故障表现出的现象和特征,就不难找到故障根源,然后用相应方法去排除

When diesel generator breaks down, whether it is simple or complex, it will show in a certain form Carefully find out the phenomena and characteristics of the fault, it is not difficult to find the root cause of the fault, and then eliminate it with corresponding methods

寻找故障原因和位置的基本思路

Basic idea of finding fault cause and location

对一台柴油发电机来说,常用"问,看.听.摸,嗅"等方法判断故障的具体位置

For a diesel generator, "ask, see, listen, touch, smell" and other methods are often used to judge the specific location of the fault

问:主要是通过询问操作人员故障发生时,有无不正常的声响,烟色,异味等异常情况,然后进一步有的放矢地诊断,这样可大大节省时间,提高发电机组故障诊断的准确率

Q: mainly by asking the operator if there is abnormal sound, smoke color, peculiar smell and other abnormalities when the fault occurs, and then further targeted diagnosis, which can greatly save time and improve the accuracy of generator set fault diagnosis

看:是认真观察各种仪表的读数,排气烟色,水油等的变化情况.柴油机各零部件是否有断裂变形,紧固件是否有松动,分离或脱落情况,各零部件装配的相对位置是否正确等等

Look: carefully observe the readings of various instruments, the changes of exhaust smoke color, water and oil, etc Whether the parts of the diesel engine are broken and deformed, whether the fasteners are loose, separated or fall off, and whether the relative position of each part assembly is correct, etc

听:是用细长金属棒或木柄起子作"听诊器",用该"听诊器"触及柴油发电机外表面相应部位来"听"运动部件发出的声音,了解其变化情况

Listening: use a slender metal rod or wooden handle driver as a "Stethoscope", and use the "Stethoscope" to touch the corresponding parts on the outer surface of the diesel generator to "listen" to the sound emitted by the moving parts and understand their changes

摸:是凭手的感觉检查配气机构等零件的工作情况和高压油管,喷油器等零件的振动情况

Touch: check the working condition of parts such as valve mechanism and the vibration of parts such as high-pressure oil pipe and fuel injector by hand

嗅:是感官的嗅觉.嗅出柴油机是否气味异常,以诊断故障的具体位置

Smell: the sense of smell of the senses Sniff out whether the diesel engine has abnormal smell to diagnose the specific location of the fault

借助现代检测设备诊断故障

Diagnose faults with the help of modern detection equipment

诊断柴油发电机故障时,应尽量借助现代检测设备,帮助提高故障诊断的效率和准确性

When diagnosing the fault of diesel generator, we should try our best to use modern detection equipment to help improve the efficiency and accuracy of fault diagnosis

一些应急措施

Some emergency measures

柴油发电机组发生故障时,有些故障不能一下诊断清楚,而这些故障可能会发展.为防止大事故的发生,必须将柴油机降低转速或熄火后再进一步诊断.比如发电机组发生了"飞车",必须立即用断油,断气或加大负荷的方法将发电机组熄火,因为柴油机处于飞车状态时,柴油机各零部件磨损加据,寿命急剧下降

When the diesel generator set breaks down, some faults cannot be diagnosed clearly, and these faults may develop In order to prevent major accidents, the diesel engine must be further diagnosed after reducing the speed or stalling For example, in case of "runaway" of the generator set, the generator set must be shut down immediately by cutting off oil, gas or increasing the load, because when the diesel engine is in the runaway state, the parts and components of the diesel engine wear and tear, and the service life decreases sharply

以上就是今天小编带给大家的精彩内容，更多精彩内容请点击我们的网站：燃气发电机组配件http://www.huannengpower.cn

Please click the above website to bring us more wonderful content of gas generator set today http://www.huannengpower.cn