The accuracy of drum level measurement was approved by Northeast Electric Power Research Institute

 After our retrofit of No.4 boiler drum water measurement system inTongliao Power Master Plant, Northeast Electric Power Research Institute made a lot of field experience on , the indication of water level measurement were still existing the problem of deviation.According to the experimental data and DCS more than 40 day historical data curve analysis, draw a preliminary conclusion：“Thermal water level measuring circuit has no problem, it could reflect the real change condition of drum water level, the each difference of indication between the water level gauge was the true deviation of the water level in the boiler drum.” This conclusion is the Northeast Electric Power Research Institute for the first time affirmed accuracy of drum level measurement in the form of text .