东风4D型内燃机车水温高故障原因分析及处理措施

Cause Analysis and Treatment Measures of the High Water Temperature of the Dongfeng 4D Diesel Locomotive

东风4D内燃机车冷却水系统,一方面对柴油机、机油和增压后的空气进行冷却,另一方面也需要通过散热器与外界空气交换热量使冷却水保持在适当温度范围内,从而达到正常冷却目的。基于此,分析造成机车水温高的原因,提出相应的处理方法。

The cooling water system of Dongfeng 4D diesel locomotive, On the one hand, cool the diesel engine, en-gine oil and the pressurized air, on the other hand, also need to exchange with the outside air radiator heat to the cool-ing water maintained at an appropriate temperature range, so as to achieve the purpose of normal cooling. Based onthis, the reasons for the high temperature of locomotive were analyzed, and the corresponding treatment method wasput forward.