Matters needing attention when installing diesel generator sets
During the assembly process of the diesel generator set, in view of the fact that some users did not respect the prerequisites of the assembly, they ignored the abnormalities in the assembly process, which had the necessary influence on the use of the diesel generator set, and also brought the necessary safety hazards. Let us first introduce the aspects that need attention in the process of assembling diesel generators.
1. The assembly place needs to be well ventilated, the generator end should have sufficient air inlets, and the diesel engine end should have excellent air outlets. The area of the air outlets should be more than 1.5 times the area of the water tank. 2. The periphery of the assembly site should be kept clean to prevent Cargoes that can generate corrosive gases such as acid and alkali can be placed next to it. Fire extinguishing equipment should be provided if necessary, and fire protection still needs to be valued.
3.For indoor use, it is mandatory to lead the smoke exhaust pipe to the outdoor. The diameter of the pipe must be equal to or greater than the diameter of the exhaust pipe of the muffler. The elbow of the connected pipe should be the first to ensure smooth smoke exhaust and the pipe should be smooth. Tilt downwards by 5-10 degrees to prevent rainwater intake; if the exhaust pipe is assembled vertically upwards, a rain cover is mandatory.
4.When the foundation is made of concrete, the level of the unit must be measured with a spirit level during assembly so that the unit does not remain on the horizontal base. There should be an exclusive shock pad or foot bolts between the unit and the base.
5.The unit casing must have a reliable guarantee for grounding. For generators that require a neutral point to be directly grounded, it is mandatory for professionals to implement neutral grounding and be equipped with lightning protection devices. It is strictly forbidden to use the mains grounding device to implement the neutral point. Connect directly to ground.
6, the two-way switch of the generator and the city power is quite reliable to prevent reverse power transmission. The reliability of the wiring of the two-way switch needs to be checked and approved by the local power supply section.
Careful work is very important.The importance of the above points should not be indifferent.In addition to paying attention to things during the assembly process, when setting up, you should also pay attention to inspection and control to reduce the occurrence of cutting problems, thereby increasing the service life of the diesel generator set.
- 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.
- 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
- 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
- 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
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