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如何预防柴油发电机组汽缸开裂

作者:康明斯发电机厂家 发布日期:2016-08-19 来源:www.0755fdjz.com 点击:

 冬季气温低,柴油发电机组汽缸盖易发生裂缝漏水。其主要原因有以下几个方面: 
1、起动后才加冷却水。柴油发电机组起动后,机内温度立即升高,如果这时加入冷却水,汽缸体与汽缸盖急剧冷却,就会因冷缩而裂缝。 
2、停机后,没有放冷却水。机内水冻结成冰,体积增大,发生汽缸体和汽缸盖胀裂。  
3、柴油发电机组运转时,冷却水不足或水箱开锅机温过高,突然加入冷却水。汽缸体和汽缸盖过冷收缩也会引起开裂。
4、柴油发电机组长时间运转,机内温度高,停车后立即放掉高温水。会导致高温零件骤遇冷空气而开裂。
5、使用减压机停机,使高温的气缸盖突然遇到寒冷空气而导致开裂。 
防止各类汽缸体和汽缸盖开裂有以下方法: 
1、起动柴油发电机组前,应先给水箱加入温热水,严冬季节要灌注热水2~3次,待放水阀中流出的水约30~50℃时起动为佳。 
2、发动机运转时间较长时,停机后应等待半个小时左右,机温下降到40~50℃时再放冷却水。放完水后用细铁丝捅通放水阀开关,防止沉淀物堵塞放水阀。  
3、柴油发电机组运转过热严重缺水时,应让柴油机低速空转10~15分钟,然后再慢慢加入冷却水。

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相关标签:康明斯发电机厂家,发电机厂家,发电机组厂家,深圳发电机厂家,柴油发电机厂家

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