Simulation methods and systems for helium pressure control systems

Abstract

This invention discloses a simulation method and system for a helium pressure control system. The simulation method includes: acquiring the mass flow rate of each device in the helium pressure control system; calculating the correspondence between the flow rate and density of helium in the high-pressure helium pipeline and the low-pressure helium pipeline based on the mass flow rate; inputting the correspondence between the flow rate and density of helium in the high-pressure helium pipeline and the low-pressure helium pipeline into the gas state equation to obtain the correspondence between the density change and pressure change of helium; constructing a simulation model of the helium pressure control system based on the correspondence between the density change and pressure change of helium; and adjusting the operating parameters of each device based on the simulation model. In other words, this invention establishes a simulation model based on the correspondence between the density and pressure of helium at any position in the circulation loop, and adjusts the operating parameters of each device based on the simulation model to ensure that the pressure of helium remains stable throughout the entire cyclic refrigeration process.

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