Method for testing injection coefficient of steam injector for industrial steam extraction

The invention discloses a steam ejector injection coefficient testing method for industrial steam extraction. According to the method, a steam ejector serves as a unique external heat supply steam source for industrial steam extraction; a steam inlet of the steam ejector is connected with a steam pipeline; the steam pipeline comprises a power steam pipeline connected with a power steam inlet of the steam ejector and a suction steam pipeline connected with a suction steam inlet of the steam ejector, and the method comprises the following specific steps that A, the accuracy of a desuperheating water flow meter on the steam pipeline is judged; b, judging the accuracy of the desuperheating water flow on the steam pipeline, and eliminating the influence of an installation process on the test; and C, the injection coefficient of the steam injector is obtained by testing the flow of the power steam attemperation water on the power steam pipeline. The method is easy to implement, scientific in algorithm, more reasona