When using diesel generator sets in low temperature seasons, the following key points should be noted to ensure their stable operation and extend their service life:
1、 Fuel selection and management
Choosing low pour point diesel: In low-temperature environments, the flowability of diesel decreases, viscosity increases, which can easily lead to poor atomization and decreased combustion efficiency. Therefore, light diesel with moderate viscosity, low pour point, and good ignition performance should be selected.
Fuel purification: Diesel fuel must undergo 48 hours of precipitation purification treatment to reduce impurities and moisture in the fuel. Regularly inspect and clean the fuel filter
2、 Start up and preheating
Correct startup method: Before starting, an appropriate amount of clean soft water at a certain temperature should be injected into the water tank. After the water temperature reaches a hot level, the drain valve should be closed, and then suitable temperature clean soft water should be injected.
Shake the crankshaft to ensure sufficient lubrication of all moving parts before starting.
Do not use open flames to assist combustion: Do not remove the air filter. Use cotton yarn dipped in diesel fuel to ignite and place it in the intake pipe to assist combustion. This will cause unfiltered dusty air to directly enter the cylinder, resulting in abnormal wear of components such as pistons and cylinders.
Preheating measures: Install water jacket heater and oil heater to improve the success rate of startup.
Before starting the diesel generator, the engine preheater can be used or the engine can be run for a period of time before starting to preheat the engine to an appropriate temperature.
3、 Operation and maintenance
Avoid low temperature load operation: When the diesel engine starts and catches fire, it is not advisable to immediately engage in high load operation. It should first idle at low to medium speed for a few minutes, and then put into load operation after the cooling water temperature reaches 60 ℃.
Reasonably control the discharge of cooling water: Before turning off the engine, the engine should be idling until the temperature of the cooling water drops below 60 ℃ before turning off the engine and draining the water.
When the temperature is below -4 ℃, it is necessary to drain the cooling water from the diesel engine cooling water tank to avoid water freezing and volume expansion, which may damage the radiator of the water tank.
Body insulation: To prevent excessive cooling of diesel generators, insulation sleeves and curtains should be equipped with cold proof devices.
Replacing the air filter: In low-temperature environments, the frequency of replacing the air filter should be appropriately increased to reduce engine wear.
4、 Battery maintenance
Regularly check the battery: Regularly check the electrolyte level and charging status of the battery to ensure the cleanliness and fastening of the battery terminals. In cold seasons, it is advisable to consider using insulation materials to insulate the battery and improve its performance.
Keep the battery fully charged: Ensure that the battery is fully charged to avoid startup failure due to insufficient power.
5、 Other precautions
Regular inspection and maintenance: Conduct a comprehensive inspection and maintenance of the diesel generator set on a regular basis, including the connection status of each component, whether the fasteners are loose, and whether the wires and cables are damaged.
Maintain good ventilation: Ensure that there are no flammable or explosive materials around the equipment, maintain good ventilation, and prevent safety accidents caused by lack of oxygen or overheating.
Adhere to operating procedures: Use diesel generator sets strictly in accordance with operating procedures to avoid equipment damage or safety accidents caused by misoperation.
When using diesel generator sets in low temperature seasons, attention should be paid to fuel selection and management, start-up and preheating, operation and maintenance, battery maintenance, and other aspects. Only by fully understanding and mastering these key issues can we ensure the stable operation of diesel generator sets and extend their service life.
More information on diesel generator sets:https://hq-power.net/
