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为什么锅炉发生满水事故时蒸汽温度下降
Why the boiler water steam temperature decreased when the accident
山东锅炉厂家认为当汽包就地水位计的水位超过水位计上部最高可见水位时，出现了满水事故。下面就让小编为大家讲解一下锅炉发生满水事故时蒸汽温度下降的原因。Shandong boiler factory that when the water level in the steam drum water level gauge water level gauge in more than the highest water level is visible, the full water accident. Let small make up to explain the reasons of boiler water steam temperature decreases when the accident.
当发生满水事故时，汽包内水位明显升高。蒸汽空间减少，汽包内的汽水分离设备不能正常_工l作，汽水分离效果变差，蒸汽带水量增加。带水的蒸汽进人过热器后，过热器从烟气吸收的一部分热量用于蒸发蒸汽携带的炉水．使烟气用于过热蒸汽的热量减少，因此，使过热器出口蒸汽温度下降。蒸汽温度下降的程度决定于蒸汽带水的多少，而蒸汽带水的多少取决于汽包满水的程度。山东锅炉炉水的古盐量比蒸汽大得多，蒸汽携带的炉水在过热器内吸收热量后，全部变为蒸汽，炉水中的含盐量一部分沉积在过热器管内。部分进入蒸汽，使得蒸汽的含盐量明显增加。When the water accident, the drum water level increased significantly. The steam space is reduced, the drum separator equipment can not be normal _ Engineering l, steam water separation effect is poor, steam with the increase in water content. Steam into the superheater, superheater from flue gas absorption part of heat for evaporation steam carrying water. The flue gas is used for superheated steam to reduce the heat, therefore, the steam temperature of superheater export decline. Steam temperature decreased to decide how much to steam, and the steam with water depends on the degree of drum full of water. The ancient salt Shandong boiler water than the steam is much greater, steam carrying water to absorb heat in the superheater tubes, all into a steam boiler water, the amount of salt in the part of deposition in the superheater tube. Enter the steam, the steam of the salt content increased significantly.
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