Thermal test device and centering method for control rod driving wire

Abstract

The invention discloses a thermal test device for a control rod drive line and a centering method thereof, wherein the thermal test device for a control rod drive line includes a bottom connection shell, a lower pressure shell, a middle pressure shell, an upper The pressure shell, the lower core plate, the coaming assembly, the upper core plate, the guide cylinder support plate, the guide cylinder, the pipe seat installation structure and the pipe seat, and the two ends of the upper and lower flanges of the lower pressure shell are respectively formed with upper plate mounting plates. The lower core plate is fixed on the lower plate installation notch, the coaming assembly is located in the lower pressure shell and fixed on the lower core plate, and the coaming assembly is provided with multiple The upper core plate is fixed on the installation notch of the upper plate, and the upper core plate is provided with a plurality of upper plate adjustment members along its circumference, and the upper end flange of the middle pressure shell is formed with a support plate installation notch, guiding The cylinder support plate is fixed on the installation notch of the support plate, and the guide cylinder support plate is provided with a plurality of support plate adjustment parts along its circumference.

Description

technical field [0001] The invention relates to the technical field of reactor test verification, in particular to a thermal test device for a control rod driving line and a centering method thereof. Background technique [0002] The Chinese patent with the patent number ZL201310454835.X discloses a cold-state test device and test method for the control rod drive line of a nuclear power plant. Components and driving mechanism; the pressure-bearing cylinder is a container composed of a top cylinder, an upper cylinder, a lower cylinder and a bottom connecting cylinder, and each section of the cylinder is detachably connected by flanges in turn; the test method is through By replacing one or more sections of the top cylinder, upper cylinder, and lower cylinder, the axial dimension of the pressure-bearing cylinder can be lengthened or shortened, so that the core fuel assemblies with different active section heights can be cooled test. However, in practice, the control rod driv...

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Problems solved by technology

However, this scheme also cannot meet the requirements of operation under high temperature (≥300°C) and high pressure (≥15MPa); and there is no specific technical scheme on how to adjust the centering degree of the test piece

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