Solve the Problem of Diesel Generator in Low Temperature Environment

Jul. 03, 2021

The usage of diesel generator in different environment is different, especially in low temperature environment, we should pay more attention to the correct use and maintenance of generator set. This article by the professional diesel generator manufacturers - Dingbo power for you to answer the diesel generator set in low temperature environment related matters needing attention.


Solve the Problem of Diesel Generator in Low Temperature Environment

 

1、 Choose any fuel.

 

The low temperature in winter makes the fluidity of diesel worse, the viscosity increases, and it is not easy to spray, resulting in poor atomization and combustion deterioration, which leads to the decline of power and economic performance of diesel engine. Therefore, when selecting engine oil at low temperature, light diesel oil with thinner viscosity, low freezing point and good ignition performance should be selected as far as possible. It is generally required that the freezing point of diesel oil should be 7-10 ℃ lower than the local current seasonal temperature.

 

2、 Start with open fire.

 

The air filter cannot be removed, and the igniter can be made by dipping cotton yarn in diesel fuel and then put into the air intake pipe for combustion supporting start. In this way, the dust containing air outside will be directly inhaled into the cylinder without filtration, which will cause abnormal wear of piston, cylinder and other parts, and also cause rough diesel engine operation and damage the machine. Therefore, in low temperature, it is necessary to change air filter element frequently.

 

3、 The cooling water is discharged too early or not.

 

Before flameout, run at idle speed. When the temperature of cooling water drops below 60 ℃, the water is not hot, then turn off the engine and drain. If the cooling water is discharged too early, the body will shrink and crack when it is suddenly attacked by cold air at high temperature. When the air temperature is lower than - 4 ℃, the cooling water in the diesel engine cooling water tank must be discharged, because when the temperature is - 4 ℃, the water will freeze and the volume will increase, and the radiator of the cooling water tank will be damaged due to the expansion of the volume.

 

Low temperature operation of diesel generator.

 

4、 Low temperature load operation.

 

After the diesel engine started and caught fire, some workers couldn't wait to put into load operation immediately. For a diesel engine that has not been on fire for a long time, due to the low temperature of the engine block and the high viscosity of the oil, it is difficult for the oil to fill into the friction surface of the moving pair, which will cause serious wear of the machine.In addition, plunger spring, valve spring and injector spring are easy to break due to "cold and brittle". Therefore, when the temperature is low, the diesel engine should be idled for a few minutes at low and medium speed after starting and ignition, and then put into load operation when the cooling water temperature reaches 60 ℃.

 

5、 Do not pay attention to the body insulation.

 

When the temperature is low, it is easy to make the diesel generator work excessively cooled. Therefore, thermal insulation is the key to use diesel engine in low temperature environment, so the diesel engine in use should be equipped with thermal insulation cover and thermal insulation curtain and other cold proof equipment.

 

Pay attention to the above points, can effectively improve the service life of diesel generator, extend the service time.

 

6、 Improper starting method.

 

In order to start the diesel engine quickly in the low temperature environment, some workers often use the abnormal starting method without water (start first, then add cooling water). This method will cause serious damage to the machine and should be prohibited.The correct preheating method is: first cover the heat preservation quilt on the water tank, open the drain valve, and continuously inject 60-70 ℃ clean soft water into the water tank. When the water flowing out of the drain valve feels hot, close the drain valve, and then pour 90-100 ℃ clean soft water into the water tank, and rotate the crankshaft to make the moving parts properly pre lubricated, and then start. Or install water jacket heater and oil heater.

 

The above is a professional diesel generator manufacturer - Dingbo power to share with you the use of diesel generators in low temperature environment and maintenance methods, hope to help you. Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. is always committed to providing customers with comprehensive and intimate one-stop diesel generator set solutions.From the design, supply, commissioning and maintenance of the product, we will consider carefully for you everywhere. We will provide you with five-star worry free after-sales service, including pure spare parts, technical consultation, installation guidance, free commissioning, free maintenance, unit transformation and personnel training.

 

If you are interested in diesel generator, you are welcome to contact us by email  dingbo@dieselgeneratortech.com.

 


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