分辨车用尿素是否合格的方式

日期:2020-12-25 | 人气:114

1. 尿素溶液的浓度是关键因素之一。尿素浓度直接影响NOx的催化效率和尿素溶液的凝固点,而且也影响了后处理系统的参数设定,优质的车用尿素溶液的浓度必须在规定的范围。

1. The concentration of urea solution is one of the key factors. Urea concentration directly affects the catalytic efficiency of NOx and the freezing point of urea solution, and also affects the parameter setting of post-treatment system. The concentration of high-quality vehicle urea solution must be within the specified range.

2. 车用尿素质量对SCR系统喷雾附件的影响不溶于水的杂质燃烧产生积炭,影响后处理系统喷雾附件,会对催化剂骨架进行堵塞,造成催化剂效率和使用寿命降低,杂质会造成气泵损坏。

2. the quality of urea for vehicle SCR system spray accessories affect the insoluble impurities combustion combustion, resulting in carbon deposition, the postprocessing system spray attachment will block the catalyst skeleton, resulting in catalyst efficiency and life expectancy reduction, impurities will cause damage to the air pump.

3. 车用尿素质量对SCR系统催化剂影响SCR催化器是SCR还原技术的核心,而SCR催化剂又是SCR催化器的核心之一。催化剂的活性对提高整个SCR系统的转化效率至关重要。车用尿素中醛类物质的指标是规定在5ppm以下,醛类物质在SCR系统中可能对催化剂的涂层造成影响。

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3. The influence of vehicle urea quality on SCR system catalyst. SCR catalyst is the core of SCR reduction technology, and SCR catalyst is one of the core of SCR catalyst. The activity of catalyst is very important to improve the conversion efficiency of SCR system. The index of aldehydes in vehicle urea is less than 5ppm. Aldehydes may affect the coating of catalyst in SCR system.

4. 沉积物的产生是尿素溶液使用中比较普遍的问题。沉积物的产生严重影响了SCR系统的运行,甚至造成管道堵塞,沉积区锈蚀,催化剂通道堵塞,最终使得SCR系统失效。优质尿素将大大降低沉积物的产生。

4. Sediment is a common problem in the use of urea solution. The sediment seriously affects the operation of SCR system, even causes pipeline blockage, deposition area corrosion, catalyst channel blockage, and finally makes SCR system failure. High quality urea will greatly reduce the production of sediment.

·劣质尿素杂质超标产生的积碳

·Carbon deposition caused by excessive impurities in inferior urea

·储液罐管道堵塞

·The pipeline of liquid storage tank is blocked

·劣质尿素杂质过多,导致杂质进入滤芯,损坏尿素泵 。

·There are too many impurities in inferior urea, leading to impurities entering the filter element and damaging the urea pump.

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