Analysis of influencing factors in pressure measurement instrument leakage based on orthogonal test
Aiming at the piston system of 0-250 MPa automatic piston pressure measuring instrument,ANSYS Fluent simulation software was used to simulate and calculate the change rule of leakage of piston system under different pressure,seal clearance and dynamic viscosity.When the pressure was 250 MPa,the clearance,the dynamic viscosity and the maximum leakage amount were 0.02 mm,0.018 2 Pa·s and 3.864 cm3/s,respectively.A comparative analysis of the orthogonal tests showed that the piston gap,pressure and hydrodynamic viscosity were the main factors influencing the piston leakage in order of priority.It has guiding significance to develop high efficiency and high precision piston pressure measuring instrument.
piston type pressure measuring instrumentleakageseal clearanceorthogonal test
万方数据
维普
