发电机的油如何选购 How to choose the oil for the generator

优质柴油的特征：

1、外观清澈

2、含硫量低（小于1.0%）

3、含残碳量低（小于1.0%重量）

4、水及沉积物少（小于0.1%体积）

5、含灰份少（0.03%重量以下）

柴油发电机用油的另外一个重要的指标：

柴油发电机组额定耗油量的定义是基于柴油的低热值为 42780千焦耳/公斤；发电机的额定功率的定义是基于使用符合发动机制造商要求柴油

市场上常见劣质柴油的特征：

1、外观浑浊

2、达不到规定的标号

3、达不到规定的低热值

4、含硫量较高

5、含杂质多

6、含水分高

7、残碳量高

使用劣质柴油的危害：

1、高含硫量:破坏机油的质量,使机油过早降低使用性能,使发动机得不到良好的润滑。

2、低热值达不到规定值：燃油消耗率高于标定发动机达不到标定的额定功率。

3、含残碳量高：燃烧产生过多的积碳，影响发动机的燃烧效果，燃烧室温度过高，造成活塞、活塞环和缸套的早期损坏。

4、含水分高：破坏燃油泵及喷油嘴精密件的润滑。

5、含杂质多：损坏燃油泵及喷油嘴精密件，喷油嘴喷孔磨损变大。

6、柴油隔容易堵塞，发电机组功率下降，柴油隔更换间隔缩短。

使用劣质柴油的后果：

发动机达不到额定的功率。燃油消耗量高于标定。燃油系统的零件早期损坏，并衍生其它零件的损坏。使机油早期变质，破坏发动机的润滑。发动机性能早期下降，缩短大修间隔。所以劣质柴油虽然便宜，短期内降低了成本，但长期来看，得不偿失，总体成本会升高。

Characteristics of high-quality diesel:

1. Clear appearance

2. Low sulfur content (less than 1.0%)

3. Low residual carbon content (less than 1.0% by weight)

4. Less water and sediment (less than 0.1% by volume)

5. Low ash content (below 0.03% by weight)

Another important indicator of diesel generator oil:

The definition of the rated fuel consumption of a diesel generator set is based on the low calorific value of diesel, which is 42780 kilojoules per kilogram; The definition of the rated power of a generator is based on the use of diesel fuel that meets the requirements of the engine manufacturer

Characteristics of common inferior diesel in the market:

1. Appearance turbid

2. Unable to meet the specified label

3. Unable to reach the specified low heating value

4. High sulfur content

5. High impurity content

6. High moisture content

7. High residual carbon content

The hazards of using inferior diesel:

1. High sulfur content: destroys the quality of engine oil, prematurely reduces its performance, and prevents the engine from receiving good lubrication.

2. Low calorific value cannot reach the specified value: The fuel consumption rate is higher than the rated power of the calibrated engine and cannot reach the rated power.

3. High residual carbon content: Excessive carbon deposits are generated during combustion, which affects the combustion efficiency of the engine. The combustion chamber temperature is too high, causing early damage to the piston, piston ring, and cylinder liner.

4. High moisture content: destroys the lubrication of fuel pumps and fuel injectors.

5. High impurity content: Damaged fuel pump and fuel injector precision parts, increased wear on fuel injector holes.

6. Diesel fuel compartments are prone to clogging, resulting in a decrease in power output of the generator set and a shorter interval for diesel fuel compartment replacement.

The consequences of using inferior diesel:

The engine cannot reach its rated power. The fuel consumption is higher than the calibration. Early damage to components of the fuel system can lead to damage to other parts. Causing early deterioration of engine oil and damaging the lubrication of the engine. Early decline in engine performance, shortening the interval between major repairs. So although inferior diesel is cheap and reduces costs in the short term, in the long run, the benefits outweigh the losses, and the overall cost will increase.