猫咪apk下载最新版

欢迎来到长沙市百锐固得机电设备有限公司! XML MapSitemapWelcome to Changsha Bairui Goode Mechanical & Electrical Equipment Co., Ltd.!

Couch Motor Service Hotline: 189-3213-5110

Changsha Bairui Gude Electromechanical Equipment Co., Ltd. generator sales, rental, maintenance, recycling

Popular keywords: Changsha new generator rental Changsha second-hand generator rental

Generator rental

The abnormal vibration failure analysis of diesel generator is as follows

发表时间:2017-12-05 Article source : Couch motor manufacturersPost time: 2017-12-05

After the diesel generator starts successfully, abnormal vibration and irregular vibration occur. It is necessary to stop the inspection, find out the source of the vibration, and solve the problem. Today the diesel generator manufacturer analyzes and analyzes with everyone! The main reason for the imbalance of the rotor is the rotor, Imbalance of connecting rods, couplings and drive wheels (brake wheels). The solution to this problem is to find the right balance point. If there are larger drive wheels, brake wheels, couplings and couplings, It should be separated from the rotor separately.

Then there is the mechanically loose rotating part. For example, the iron core bracket is loose, the oblique key, the pin is loose, and the rotor binding will cause the rotating part to be unbalanced.
Part of the reason for the mechanical failure is that the connecting rod part of the shaft is asymmetric, the centerline is not coincident, and the centering is incorrect. The main cause of this failure is improper installation and improper installation. In addition, the centerline of some interconnected components is In the cold state, it is exactly the same, but after a period of operation, the centerline is damaged due to deformation of the rotor support, foundation, etc., resulting in vibration.
The gear and the connection to the generator are defective. This failure is mainly manifested in gears, worn tooth surfaces, poor lubrication, skewed and misaligned wheels and couplings, gear teeth, toothed couplings, excessive clearance, or wear Serious, it will cause some vibration.
Defects and installation problems of the generator itself. This kind of failure is mainly due to ellipse, shaft bending, too large or too small gap between shaft and bearing, bearing, base, and part of the rigidity of the entire motor installation foundation. Between the bases that are not firmly fixed, the anchor bolts are loose, the bearing housing and the base plate are loose, the vibration between the isoshaft and the shaft is too large or too small, and the lubrication and temperature of the bearing are abnormal.
The load of the generator is transmitting vibration. For example: the turbine vibration of the turbine generator, the motor dragging the fan, and the pump vibration, causing the motor to vibrate.
The failure of the electrical part is caused by electromagnetic mainly including: incorrect wiring of the stator of the AC motor, short-circuit of the rotor windings of the generator motor, short-circuit of the windings of the synchronous motor excitation winding, incorrect connection of the excitation coil of the synchronous motor, broken rotor bars, and uneven air gaps of the rotor , Causing the rotor core to deform, resulting in air gap magnetic flux imbalance caused by vibration.

everybody is watching

  • 小负荷柴油发电机组在工作时有哪些故障
    In the power generation industry in China, we have been working hard, pursuing the concept of quality and service, and for the sake of customers, the full power generator chooses China and your generator is a professional housekeeper. At present, the diesel generator set maintenance market refers to damage inspection and routine maintenance. Two aspects: after maintenance refers to the failure of the diesel generator, there are problems with various accessories, such as replacing the generator or
  • 介绍柴油发电机组辨别冒烟颜色启动从预热开始
    Blue smoke, fire reason: It means that the engine is burning oil. There are three types of reasons: first, the piston ring goes opposite, and the oil comes in the cylinder; the second is the oil level of the oil pan of the atmosphere filter, which leads the ring. The height of the groove; Third, the gap between the duct and the valve stem is too poor. Expulsion idea: Adjust the piston ring so that the opening teeth of the ring are staggered 120 degrees or 180 degrees, and the opening teeth of the ring should avoid the piston pin hole and the side pressure is poor. Adjust the height of the oil level of the oil filter of the atmosphere filter below the height of the annular groove; if the clearance between the duct and the valve stem is too poor, replace the component and reduce the clearance. The normal mutual assistance clearance between the two is 0.0
  • 同步发电机一般常见问题的处理
    The diesel engine is working normally, but the generator fails to generate electricity or the voltage is very low. This may be due to the components associated with the generator, such as: the exciter is damaged, and the excitation voltage cannot be supplied. The excitation current is taken in. The rotor's dead center residual magnetism is weakened or declining. It will make the generator unable to generate electricity or the transmission voltage is extremely low. The right to respond is usually: use an appropriate DC voltage and directly connect to the excitation winding according to the polarity Magnetization. Carefully inspect the exciter and the cyclotron rectifier, find abnormal components or windings, and replace them for restoration. The generator's transmission voltage is unstable, and
  • 发电机租赁必须对它的操纵规程有一定的认识
    Before starting, you should check whether the fuel volume of the fuel tank is rich, and there is no oil leakage in each oil pipe and the discussion area; whether the cooling system water is rich, clean and leak-free, and whether the fan belt is tight or not. The internal combustion engine and generator drive parts should be connected and trusted. The wires of the input line are well-insulated, complete and effective in all aspects. After starting, it should run at low speed for 3 to 5 minutes. After the temperature and oil pressure wheel are normal, the initial work can be done. The generator should be no different in the speed increase. Ring, the slip ring and commutator are well brushed, no jumping and sparking phenomenon. After the operation is stable and the frequency and voltage reach the rated value, power can be supplied to the outside.

Popular information