Method for evaluating filtering precision and efficiency of submicron liquid-solid separation system

The invention belongs to the technical field of nuclear power water filtering performance evaluation, particularly relates to a method for evaluating the filtering precision and the efficiency of a submicron liquid-solid separation system. The method is suitable for evaluating the filtering performance of a submicron liquid-solid separation filter and designing and selecting models of the submicron liquid-solid separation filter. According to the evaluation method, the actual measurement inspection and mathematical analysis are combined; the method comprises the following steps: firstly, correspondingly testing parameters such as filtering precision, pore diameter and filtering efficiency of particles of more than 1 mu m by utilizing the existing test device and method; filtering under thecondition of specified filtering efficiency; the filter performance of particles of 1 [mu] m or more is a relationship curve of filter material pore diameter/filter precision (Y)-filter precision (X). Then fitting is conduct