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Diesel generators have five fears, what do you know most about?

Article source: 发表时间:2017-03-07 Popularity: 82Published time: 2017-03-07
Diesel generator sets are deactivated, and diesel generator sets are providers of emergency backup power after a power failure. Most of the time, the units are in standby mode. Once a power failure occurs, the units are required to "start in an emergency and supply power in an emergency" Otherwise, the standby unit will lose its meaning. How can we achieve this goal? Practice has proved that strengthening the maintenance of daily generator sets is the most cost-effective method, because the unit is in a static state for a long time, and the various materials of the unit itself will undergo complex chemical and physical changes with oil, cooling water, diesel, air, etc. Stop broken. " If it is not maintained for a long time, the following problems will occur.

1. The starting battery of the unit is faulty.

The battery is left unmaintained for a long time, and the electrolyte cannot be replenished in time after the moisture of the electrolyte evaporates. There is no start-up battery charger. After the battery is naturally discharged for a long time, the battery power is reduced. However, due to the negligent failure to perform the switching operation, the battery capacity cannot meet the requirements. To solve this problem, in addition to configuring a high-quality charger, necessary inspection and maintenance are necessary.

2. Water enters the diesel engine

Due to the condensation of water vapor in the air due to temperature changes, water droplets are attached to the inner wall of the fuel tank and flow into the diesel fuel, causing the diesel water content to exceed the standard. Such diesel fuel entering the engine high-pressure oil pump will rust the precision couplings ----- The plunger will seriously damage the unit, and regular maintenance is effective and can be avoided.

3. Retention period of engine oil (two years)

The engine oil is mechanically lubricated, and the engine oil also has a certain retention period. If it is stored for a long time, the physical and chemical properties of the engine oil will change, resulting in deterioration of the lubrication condition of the unit during operation and easy to cause damage to the unit parts, so the lubricant must be replaced regularly.

4, three filter replacement cycle (wood filter, machine filter, air filter, water filter)

The filter plays a role in filtering diesel, oil or water to prevent impurities from entering the body, and oil pollution and impurities in diesel are unavoidable. Therefore, the filter plays an important role in the operation of the unit, but At the same time, these oil stains or impurities are deposited on the screen wall, which reduces the filtering ability of the filter. If the deposition is too large, the oil circuit will not be able to flow. In this way, when the oil machine is running under load, it will be shocked because the oil cannot be supplied. (Oxygen), so during normal generator set use, we recommend: First, the common unit is replaced with three filters every 500 hours; second, the standby unit is replaced with three filters every two years;

5.Cooling system

The pumps, water tanks and water pipelines have not been cleaned for a long time, which makes the water circulation poor, the cooling effect is reduced, whether the water pipe joints are good, whether there are leaks in the water tanks and water channels, etc. If the cooling system is faulty, the consequences are as follows: First, cooling If the effect is not good, the water temperature in the unit will be too high and the machine will be shut down. Willson units are the most common. Second, the water level in the water tank drops due to water leakage in the unit, and the unit will not work properly (to prevent the water pipes from freezing when the generator is used in winter). We recommend installing a water heater in the cooling system).