Device and method for correcting flow rate calculation of matrix speed measuring device

The invention relates to the technical field of integrated measurement of flue gas flow rate and flow quantity, in particular to a device and method for correcting flow rate calculation of a matrix speed measuring device. The device for correcting the flow rate calculation of the matrix speed measuring device includes: a cold state test model that is constructed and scaled down from a wet type electrostatic precipitator outlet to a chimney flue of a coal-fired power plant, and is divided into 4 modules; and a multi-point matrix speed measuring device is a speed measuring device that is scaleddown. The method for correcting the flow rate calculation of the matrix speed measuring device includes: converting the corresponding flow rate; simulating a load meter; calculating the air volume; determining the frequency of a frequency converter; measuring the average flue gas flow rate by using the manual matrix stationing measuring method; performing comparison to obtain a speed field correction coefficient; and obta