The use of generator set under harsh environmental conditions is mainly due to the influence of environmental factors, some measures and means must be adopted in the high altitude plateau area and in the end cold climate conditions.
Environmental factor
First, the use of high altitude plateau areas
The engine with the generator set, especially the natural intake engine, loses some power when it is used in the plateau area because the air is thin and cannot burn as much fuel as it does at sea level. For the natural intake engine, the power loss is generally about 3% per 300m increase in altitude, so when it does work on the plateau, Low power should be used to prevent smoke and excessive fuel consumption.
2. Operating in extremely cold climates
Additional auxiliary starting equipment (fuel heater, oil heater, jacket heater, etc.) uses fuel heater or electric heater to heat the cooling water, fuel oil and lubricating oil of the cold engine, so that the whole engine can be heated up, so that it can start smoothly.
When the temperature in the equipment room is not lower than 4 °C, install the coolant heater to keep the engine cylinder body temperature above 32°C.
Install the generator set low temperature alarm.
For generating units operating at ambient temperatures below -18°, lubricating oil heaters, fuel lines and fuel filter heaters are also required to prevent fuel solidification. The oil heater is mounted on the engine oil pan. It heats the oil in the oil pan, making it easier for the diesel engine to start at low temperatures.
-10 # ~ -35 # light diesel oil is recommended.
Heat with intake air preheater
The air mixture (or air) entering the cylinder is heated by the intake preheater (electric preheater or flame preheater), so as to increase the temperature at the end of compression and improve the ignition condition. The method of electric heating preheating is to install electric plug or electric heating wire in the intake pipe and directly heat the intake air. It does not consume oxygen in the air or pollute the intake air, but it consumes the electric energy of the battery.
Use low temperature lubricating oil
Use low temperature lubricating oil to reduce the viscosity of lubricating oil to improve the fluidity of lubricating oil and reduce the internal friction resistance of liquid.
Use of high energy batteries
High energy storage battery, such as the current nickel metal hydride battery and nickel cadmium battery. Heat or keep warm batteries. If the temperature in the equipment room is lower than 0 ° C, install a battery heater. To maintain the capacity and output power of the battery.
For the generator set working in high humidity occasions, the generator winding and control box should be installed heaters, to prevent the generator winding and control box due to condensation caused by short circuit or damage to insulation.
Note: For different uses and models of generators, the low temperature starting measures are different due to the different requirements on its low temperature starting performance. For the engine with high requirement of low temperature starting performance, in order to ensure its smooth starting at very low temperature, sometimes it is necessary to adopt a variety of measures at the same time.
Three, operating under poor cleanliness conditions
Long-term operation in dirty environment and dusty environment will damage parts. The buildup of sludge, dirt and dust can coat parts and make maintenance more difficult. The deposits can contain corrosive compounds and salts, which can damage parts. Therefore, the maintenance cycle must be shortened to maintain the longest service life to the maximum extent.
Post time: Feb-16-2023