Eccentric pipe for simulating hybrid reactor subcritical energy cladding passage in heating, and experimental device

Abstract

The invention discloses an eccentric pipe for simulating a hybrid reactor subcritical energy cladding passage in heating, and an experimental device. The center of the inner diameter circle of the eccentric pipe is represented by O1, the center of the outer diameter circle of the eccentric pipe is represented by O2, the distance from O1 to O2 is greater than zero, the line segment between O1 and O2 is represented by O1O2, a plurality of thermoelectric couples are welded on the outer diameter wall of the eccentric pipe, the welding points of the thermoelectric couples and the eccentric pipe are symmetrically distributed by taking the line segment as a symmetric axis, the outer wall of the eccentric pipe is provided with a pressure guiding pipe communicated to the interior of the eccentric pipe, and a heat insulation protecting structure is arranged on the outer wall of the eccentric pipe. The experimental device comprises the eccentric pipe, the two ends of the eccentric pipe are connected with screwed nipples, one end of each screwed nipple, far away from the eccentric pipe, is connected with a threaded flange, and an electrified copper bar is further welded on the outer wall of the eccentric pipe. By using the experimental device, single-phase flow and heat-transfer characteristic experiment can be carried out under a full circumferential inhomogeneous heating condition, and the thermal-hydraulic characteristics of a hybrid reactor subcritical energy cladding cooling passage are simulated.

Description

technical field [0001] The invention relates to an experimental device for simulating the special thermal boundary conditions of a subcritical energy cladding channel of a mixed stack, in particular to an experimental device for simulating the circumferential non-uniform heating characteristics of a single channel coolant in a subcritical energy cladding of a mixed stack. It belongs to the field of new energy development of fusion-driven fission reactors, specifically, it belongs to the field of experimental technology necessary for the verification of thermal hydraulic design and the formulation of thermal safety rules. Background technique [0002] In the new century, my country is facing serious energy shortages and energy structure defects. Traditional fission nuclear reactors require limited reserves of fissile nuclear fuel, and face many challenges such as nuclear safety, waste disposal, and nuclear proliferation. After the Fukushima nuclear accident in Japan, the dev...

AI Technical Summary

Problems solved by technology

These devices cannot simulate the non-uniform heating characteristics of the single channel of the subcritical energy cladding coolant driven by the ITER device, and cannot be used for the experimental research on the single channel flow and heat transfer characteristics of the subcritical energy cladding coolant of the hybrid reactor and the establishment of thermal safety rules

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