Why do hydrodynamic calculations need to be performed?

　　The purpose of hydrodynamic calculation is to judge whether the working fluid has good flow characteristics in the heated pressure component, to ensure the safe operation of the boiler under various working conditions, and to calculate the flow resistance at the same time to determine the calculated pressure of each component, and to provide the basis for selecting the pump model. A good hydrodynamic design can ensure the stable flow of the working fluid in the tube, and can cool the tube metal, which is a necessary condition for the safe operation of the boiler. Reasonable flow resistance is one of the indicators to measure structural design.