不要让燃气发电机处于低温状态运行，因为会减少机器的使用寿命，这是什么原理呢？今天燃气发电机组厂家给大家讲解一下发电机在低温运行下为什么会“减寿”。

Do not let the gas generator run at low temperature, because it will reduce the service life of the machine. What is the principle? Today, the manufacturer of gas generator sets will explain why the generator will "reduce its life" under low temperature operation.

燃气发电机在低温下工作时，冷却水带走气缸内大量热能，使其热损失增多；混合气不能很好地形成和燃烧，燃油消耗量会增加8%~10%；成液滴状的燃油进入气缸后会冲洗气缸壁上的润滑油膜，并渗入到曲轴箱内，使零件的磨损量增加、冲淡油底壳内的润滑油、增加燃油消耗量和减少功率输出。

When the gas generator works at low temperature, the cooling water takes away a lot of heat energy from the cylinder, which increases its heat loss; The mixture can not form and burn well, and the fuel consumption will increase by 8%~10%; After entering the cylinder, droplets of fuel will wash the lubricating oil film on the cylinder wall and penetrate into the crankcase, increasing the wear of parts, diluting the lubricating oil in the oil pan, increasing fuel consumption and reducing power output.

一些受热膨胀的零件因温度太低而未膨胀到应有的尺寸，从而影响到全机工作性能，例如活塞与气缸间隙太大，密封不好；

Some parts subject to thermal expansion are not expanded to the proper size due to low temperature, which affects the working performance of the whole machine, for example, the clearance between piston and cylinder is too large, and the sealing is not good;

气门间隙太大而受摇臂冲击等，并使燃气发电机不易启动。在柴油机工作时，压缩后气体的高温是保证燃料着火的必要条件，当气缸、活塞等零件温度降低时，将造成压缩终了温度下降、着火延迟和燃烧条件恶化，导致燃料燃烧不完全、燃气发电机工作粗暴和排气冒烟。

The valve clearance is too large to be impacted by the rocker arm, which makes it difficult to start the gas generator. When the diesel engine is working, the high temperature of the compressed gas is a necessary condition to ensure the ignition of the fuel. When the temperature of the cylinder, piston and other parts decreases, the temperature at the end of the compression will drop, the ignition will be delayed and the combustion conditions will deteriorate, resulting in incomplete fuel combustion, rough operation of the gas generator and smoke exhaust.

当水箱冷却水温度过低时，润滑油温度随之下降，机油在气温较低时粘度较大，其流动性变差，不仅增加燃气发电机组的零件磨损，而且由于零件运动阻力增大，使机械功率损失增加，燃气发电机组的输出功率就会降低。

When the temperature of the cooling water in the water tank is too low, the temperature of the lubricating oil will drop. When the temperature is low, the viscosity of the oil will be higher, and its fluidity will become worse. This will not only increase the wear of the parts of the gas generator set, but also increase the mechanical power loss due to the increase of the movement resistance of the parts, and the output power of the gas generator set will decrease.

所以燃气发电机在非常寒冷气候条件下作业时，要增用辅助启动设备，比如燃油加热器、机油加热器、水套加热器等，利用燃油加热器或电加热器，将冷态发动机的冷却水和燃油润滑油加热，使整个发动机升温，以便能顺利地起动。当机房温度不低于4°c时，好安装冷却液加热器使发动机缸体维持温度在32°c以上。

Therefore, when the gas generator is operating in a very cold climate, it is necessary to add auxiliary starting equipment, such as fuel heater, oil heater, water jacket heater, etc. The fuel heater or electric heater is used to heat the cooling water and fuel lubricating oil of the cold engine, so that the whole engine can be heated up, so that it can be started smoothly. When the temperature of the engine room is not lower than 4 ° c, install the coolant heater to keep the temperature of the engine block above 32 ° c.

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