Power plant boiler drum geometric center measuring device

The utility model discloses a geometric center measuring device for a boiler drum of a power plant, the water level of the boiler drum of the power plant is very important for the normal operation of the boiler and indirectly reflects the material balance relationship between the boiler load and the water supply amount, a differential pressure type water level measuring device is mostly adopted in the measurement of the water level of the boiler drum, but the water level of the boiler drum is slightly deformed after long-time operation. In order to ensure the accuracy of drum water level measurement, periodic zero calibration is carried out on the drum water level, and logic parameter correction is carried out on the differential pressure water level gauge with large deviation after calibration. A steam drum population door is often used as a measurement basis of the geometric center of the steam drum, but the steam drum population door belongs to a suspended hollow circle, so that a conventional measurement