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<h1 class="h1">发生柴油发电机高温发烫的原由</span></h1>
<div class="text">发布来源：重康电力（深圳）有限公司　　发布日期: 2025-10-27　　访问量:188</div>
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<p>产生过热异样是常见的故障之一，过热故障如果得不到及时排除，将会诱发更为严重的故障，如拉缸、活塞烧顶<a href="http://www.fdjhs.cn" target="_blank">康明斯柴油机官网</a>，甚至捣缸等。对于技术人员而言只有对发电机组的故障有所了解才能使我们在平日检修和操作中更加快捷地解决损坏。</p><p>柴油发电机高温不正常指作业中冷却液温度超过正常范围的故障。过热破坏了机件间的正常配合关系；机油在发烫使用条件下也会变稀；因为润滑条件变坏，机件的磨损速度会大幅度提高。柴油发电机的过热故障可能是冷却系统本身的原因，也可能由其他因由致使。具体的原由有以下几点：</p><p>柴油发电机开始工作后，水箱宝温度上升到节温器开启温度（80～90℃）时，用手摸一摸散热器上下水槽，通过温差便可对节温器是否打开进行判断。温差过度说明节温器未打开。</p><p>警示：进一步检测节温器，可以将节温器置于热水中加热，观察其开启温度和较大开度是否符合规范。虽然柴油发电机防锈水温度已经达到节温器开启温度，但是因为节温器内的石蜡泄漏，阀门开启过晚、开度不够，或根本打不开，防锈水无法进行大循环，柴油发电机在这种情形下作业会高温。</p><p>配有膨胀罐的发电机组，膨胀罐上都会有液位刻线。正常加注水箱宝时，应保证液面处于较高和较低液位刻线之间。需要注意的是，将冷却装置排空后重新加注冷却水时，系统内部会存有一部分空气。节温器打开后，内存的空气会完全排出，这时水箱宝液位会下降。因此，节温器打开后再进行一次液位检查非常必要。</p><p>柴油发电机多选择湿式缸套，当缸套定位台肩因腐蚀而致使缸套高度不符合规范时，缸口密封就无法保证。当燃烧室内的高压燃气通过缸口窜人水套时，膨胀罐加液口就会向外返水，使冷却水散失，进行造成温度过高<a href="http://www.fdjhs.cn" target="_blank">康明斯发电机组价格一览表</a>。</p><p>缸套、机体或缸盖裂痕，会使气缸内的高压气体窜人水套；防锈水也会通过裂痕进入缸内和曲轴箱。泄漏严重时，拆下油底壳观察便可以确定泄漏部位。较轻微的裂痕可能需要打压、检漏。</p><p>提示：柴油发电机动力严重不足时，相当于长时间处于超载状态，温度必然过高。因此，当柴油发电机动力无劲，同时伴有发热现象时，应先查明功率下降的缘由，检修并使动力恢复后，往往温度高的问题也随之解决。</p><p>水箱散热器膨胀罐顶部有两根细管，一根接于缸盖回水管，另一根接于散热器上水室。如果这两根管不通畅，则系统内的空气无法及时排出，会出现冷却水温度较高的状况。</p><p>水泵叶轮的腐蚀、磨损，使返水能力大大减少，水循环量下降，造成柴油发电机水箱宝温度较高。如果是风扇传动带过松，则会导致传动带打滑、风扇丢转，直接影响散热器散热。电喷硅油风扇和电子恒温扇当前运用较多，这类风扇发生电路故障或机械损坏时，也会致使柴油发电机温度偏高<a href="http://www.fdjhs.cn" target="_blank">柴油发电机一览表</a>。</p><p>循环装置内的循环水管因长时间腐蚀，里面的胶皮脱落，形成节流。还有一些水管老化后变软，柴油发电机高速度运行时，变软的水泵进水管会被吸瘪，直接致使水泵返水量下降。</p><p>散热器或中冷器散热片被油泥、杂物堵塞，会直接影响散热器散热，造成冷却水温度偏高。如果操作的冷却水不合格，或系统加人了脏污的冷却液，也会使散热器内部堵塞。</p><p>提示：有些发电机组的机油尺管和机油加注口在散热器和中冷器的两侧。机油尺管和机油口出现排油故障后，就会产生水箱宝温度过高的状况，因为散热器和中冷器表面粘满了油泥。</p><p>供油时刻过晚，燃烧速度变缓，防冻液温度会明显升高。供油过迟的柴油发电机常伴有无法开启，排气管排黑烟，加速无力等现状。机械泵柴油发电机均能对供油时刻进行人工调节。</p></div><a href="http://www.fdjhs.cn/" target="_blank">http://www.fdjhs.cn</a>
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