Method for determining flow distribution uniformity of reactor core coolant

Abstract

The embodiment of the invention relates to the field of nuclear reaction testing, in particular to a method for determining flow distribution uniformity of a reactor core coolant, which comprises the following steps: S1, providing a reactor core simulation device with the same structure as a reactor core; s2, sequentially dividing the reactor core simulation device into a plurality of temperature measurement areas from the center of the reactor core simulation device along the radial direction of the reactor core simulation device; s3, for each temperature measurement area, installing a plurality of temperature measurement pieces to measure the temperature of the coolant in the corresponding temperature measurement area; and S4, determining the flow distribution uniformity of the reactor core coolant according to the temperatures measured by the plurality of temperature measuring pieces. According to the determination method provided by the embodiment of the invention, the reactor core simulation device with the same structure as the reactor core is provided, the reactor core simulation device is divided into the plurality of temperature measurement areas along the radial direction of the reactor core simulation device, and the coolant temperature of the corresponding temperature measurement areas is measured by installing the temperature measurement pieces; the flow distribution uniformity of the coolant in the reactor core simulation device can be determined, so that the flow distribution uniformity of the coolant in the reactor core is determined.

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