Design and simulation of pipeline structure of filling liquid flow standard facility

In order to solve the problems of small flow and intermittent flow in the filling liquid flow standard facility, a facility pipeline structure which can maintain the pressure stability of the verification pipeline in the process of flow calibration and filling repeatability verification is designed in this paper. At the same time, in order to prove the feasibility of maintaining the pressure stability of the calibration pipeline, the hydrodynamics numerical simulation of the pipeline structure of the facility is carried out.