Online verification method of flowmeter group based on normalization principle

At present, in the heating system, lots of flowmeters work abnormally, the credibility of flow measurement data is low, and it is difficult to judge the working situation of flowmeters. This paper uses the normalization method to solve the non-closure problem of measurement data of the flowmeter group, and gives the correction method of flow rate and heat. The flow ratio change rate of each heat station when the total flow rate changes and the scope of flow ratio change rate of the normal operating flowmeters are analysed. It proves that the use of flow ratio change rate can realize the cloud online verification of the flowmeter, which provides a simple and practical method to ensure the correctness and completeness of data in the smart heating system.