Test device with electromagnetic shielding and capable of releasing melt

Abstract

The invention relates to the technical field of thermoengineering, in particular to a test device with electromagnetic shielding and capable of releasing melt. The test device comprises a furnace body; a base support part is arranged in the furnace body; a cold crucible is arranged on the upper side surface of the base support part; a crucible body is arranged on the cold crucible; an induction coil sleeves the crucible body; an electromagnetic shielding device is arranged between the induction coil and the crucible body; an argon blowing device is arranged over the crucible body; a discharge hole is formed between the cold crucible release groove and the crucible body; and a release mechanism is arranged below the discharge hole. A plug is jacked open by controlling rapid lifting of an ejector pin rod, and then the ejector pin rod is controlled to horizontally move away from the position under the discharge hole. The argon blowing device is of a double-layer structure, and cooling water is introduced into the argon blowing device to prevent damage by high temperature. The cold crucible is of an integrated structure, and the sealing performance and safety of the whole device are improved. The electromagnetic shielding device can move in the axial direction of the crucible, and the position and thickness of a kish or the interface of reactants are controlled by controlling the lifting of the shielding device.

Description

technical field [0001] The invention relates to a test device for molten matter, in particular to a test device for releasing molten matter with electromagnetic shielding, and belongs to the technical field of thermal engineering. Background technique [0002] When a serious accident occurs in a pressurized water reactor in a nuclear power plant, if the core cannot be effectively cooled, the core will melt, and the high-temperature core melt may fall into the lower head of the pressure vessel and form in the lower head of the pressure vessel. The molten pool structure, under the action of the decay heat of the core melt, the high-temperature molten pool transfers heat to the wall of the lower head of the pressure vessel, resulting in an increase in the temperature of the wall of the lower head of the pressure vessel, which seriously threatens the integrity of the pressure vessel. If the wall of the lower head of the vessel cannot effectively dissipate the decay heat in the m...

AI Technical Summary

Problems solved by technology

According to the melt test device with lifting chassis of the present invention, multiple melt-related test studies can be carried out, and after the test, the molten pool and its upper shell structure can be completely removed. The melt test device includes a water cooling jacket Tube, induction heating coil and chassis system, the water cooling sleeve and the chassis system form a cold crucible, which is not an integral structure, the reliability and safety are slightly poor, and it is impossible to prepare molten material jets for dynamic simulation tests and glass of radioactive waste processing, so it cannot meet the needs of use

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