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汽包水位的准确测量,对保证锅炉的安全运行是十分重要的.锅炉汽包中的存水量相对于蒸发量是不多的,容许变化的水量很少,如果给水中断,常在10～30s内,就可能发生危险水位.反之,如负荷减少而不及时减少给水,同样很快就可能使水位过高,引起蒸汽带水,降低蒸汽品质,甚至发生“满水”事故.因此,提高汽包水位测量的精确性,一直是操作工的重要观测参数.然而,由于水在汽包中蒸发时,会产生大量汽泡以及饱和蒸汽,因此,对于高温高压锅炉汽包的实际水位测
The accurate measurement of drum water level is very important to ensure the safe operation of the boiler.The amount of water stored in the boiler drum is relatively small compared to the amount of evaporation, little change in water, if the water supply is interrupted, often 10 ~ 30s On the contrary, if the load is reduced and the water supply is not reduced in a timely manner, the water level may also be too high soon, causing the water vapor to be stripped, lowering the quality of the steam and even causing a “full water.” Therefore, The accuracy of the package water level measurement has always been an important observation parameter for the operator.However, as water evaporates in the drum, it will produce a large number of bubbles and saturated steam, therefore, for the actual water level of the drum