Many people think that large-scale diesel generators need to be regularly maintained and inspected, and small diesel generators are not needed. Actually, diesel generators, regardless of their size, are regularly maintained and inspected. The small silent type diesel generator is an independent power generation equipment, mainly to provide emergency power in the event of a power outage. In fact, small diesel generators are in stand-by standby status for most of the time, and there are few opportunities to actually use them. Usually, they mainly use test machines, and they lack comprehensive testing and maintenance methods. However, this kind of emergency backup power supply is indispensable. Therefore, how can we achieve that the generator can be powered in a timely manner in emergency situations, and the operation is safe and reliable. After the power failure is over, we can immediately stop the generator.
First, the inspection of small diesel generator battery packs. Since standby power is not often used, whether the generator can start normally or not, the key lies in the maintenance of the battery. If there is a problem with the battery pack, the more common situation is: there is voltage and no current, then you can hear the sound of the solenoid valve in the starter motor, but it does not move the shaft. There are three reasons why the problem of the small diesel generator battery pack cannot be shut down: 1. The method of stopping charging the battery during the test may lead to insufficient battery power. 2. The mechanical pump is driven by the belt. The pump oil at the rated speed is very large. However, the power supply to the battery pack is insufficient. As a result, the shrapnel in the shut-off valve during shutdown is not blocked due to the insufficient suction force of the solenoid valve and it is ejected from the four oil outlet holes. The fuel could not be shut down. 3. Domestic batteries usually have a life of two years and are not regularly replaced.
Second, start the inspection of the small diesel generator solenoid valve. When the generator is in operation, people conclude that a set of inspection methods “One Look, Two Listens, Three Touches, and Four Sniffsâ€. Listening at startup is a very important step. Take the original Cummins generator in the United States as an example. Just press the start button and after 3 seconds, it will start. Two "clicks" can be heard within these three seconds. Once the second sound is not heard, it is necessary to check whether the starting solenoid valve is working properly. If the solenoid coil is blown, the generator cannot start.
Third, the inspection of small diesel generators diesel and lubricants. Because the small diesel generators are static for a long period of time, various materials of the unit itself will undergo complicated chemical and physical changes with the oil, cooling water, diesel oil, air, etc., and thus the unit will be “disposedâ€. For this reason, attention should be paid to oil problems. For fire safety, diesel fuel tanks are usually placed in a closed room. Because the water vapor in the atmosphere condenses due to temperature changes, water droplets are attached to the inner wall of the fuel tank and flow into the diesel fuel, causing excessive moisture content in the diesel fuel. This type of diesel diesel engine into the high pressure pump, will rust the precision coupling parts - plunger, serious damage to the unit. Generator lubricants have a shelf life, long-term storage, physical and chemical properties of lubricants will change, resulting in deterioration of the lubrication of the unit when working, easily lead to damage to generator parts.
Therefore, regardless of the size of diesel generators, regular maintenance and inspection are very important. Xiaobian reminds everyone not to forget to regularly maintain and inspect your small diesel generators !
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Shanghai Ito Power Co., Ltd. Main : Ito Gasoline Generator , Ito Diesel Generator , Ito Small Pump , Ito Digital Generator , Ito Electric Welding Machine
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