Equal percentage type control valve design method based on geometric compensation type Bernoulli equation

The invention belongs to the technical field of control valves, and particularly relates to an equal percentage type control valve design method based on a geometric compensation type Bernoulli equation. The method comprises the following steps: determining design parameters; solving the overflowing area of the control window under the 100% opening degree; solving the overflowing area of the control window under other opening degrees through loop iteration; solving a characteristic coefficient of the control window; solving the coordinates of the control window under the corresponding opening degree; programming the fitting curve to obtain a geometrical shape model; the flow coefficient under the 100% opening degree is obtained through analog calculation; and setting an error value, if the error value does not exceed the range of delta, determining that the design is qualified, otherwise, re-correcting and then sequentially calculating until the design is qualified, and obtaining an adjusting characteristic.