Vent volume distribution method, device and equipment in vertical centrifugal casting solidification process

The invention discloses a vacancy volume distribution method, device and equipment in a vertical centrifugal casting solidification process, and the method comprises the steps: obtaining a centrifugal rotating speed and a centrifugal rotating shaft during simulated centrifugal casting, and calculating the equivalent height of each node of a casting grid; obtaining an equivalent height interval of the casting grid according to the equivalent height of each node of the casting grid; reading a vacant total volume needing to be distributed and a step length of the difference grid, and obtaining a vacant volume distribution interval; obtaining a distribution coefficient according to the equivalent height interval and the vacant volume distribution interval; according to the distribution coefficient and the vacancy total volume, the vacancy volume is distributed for the casting grid; and moving downwards according to the step length to form a new vacant volume distribution interval, and distributing the residual va