Visual MoSi2 heating element furnace hearth device for interaction study of molten metal and water

Abstract

A visual MoSi2 heating element furnace hearth device for interaction study of molten metal and water can solve the technical problems that experimental devices used in current related study only can adapt to low melting point molten metal, and are narrow in application scope and low in safety factor. The visual MoSi2 heating element furnace hearth device for the interaction study of the molten metal and the water comprises a MoSi2 heating element heating furnace hearth system and a water injection device system, wherein the MoSi2 heating element heating furnace hearth system comprises a crucible, the crucible is arranged in a furnace hearth provided with a MoSi2 heating element heating device, a top cap is arranged at the top of the furnace hearth, the top cap is an aluminum oxide top cap, a water injection hole is formed in the top cap, and the water injection device system provides water drops to the MoSi2 heating element heating furnace hearth system through the water injection hole. The visual MoSi2 heating element furnace hearth device for the interaction study of the molten metal and the water further comprises a thermocouple used for measuring the internal temperature of the furnace hearth. The thermocouple is connected with a variable voltage temperature control device. The visual MoSi2 heating element furnace hearth device for the interaction study of the molten metal and the water is suitable for the interaction study of the water and the molten metal under the conditions of different water drop temperatures, different water drop sizes, different water drop falling heights and different molten metal temperatures, and simultaneously is suitable for study of an interaction process of the water and the molten metal with or without the influence of an oxide layer, and provides reference to nuclear power stations and metal smelting factories in practice.

Description

technical field [0001] The invention relates to the technical field of energy safety, in particular to a visualized silicon-molybdenum rod furnace device for research on the interaction between molten metal and water. Background technique [0002] During the operation of the nuclear reactor, the high-temperature core may melt due to untimely heat dissipation in the equipment, and the molten material comes into contact with the coolant, and a violent heat transfer process occurs, and the coolant evaporates sharply, accompanied by the high-temperature liquid. Further fragmentation will increase the heat transfer area sharply, resulting in large-scale explosive boiling of the surrounding liquid, releasing a huge pressure pulse instantaneously, which may cause damage to the surrounding structural materials, resulting in the leakage of radioactive substances and serious pollution to the surrounding environment. This interaction process between melt and coolant is called steam exp...

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Problems solved by technology

[0008] Moreover, when the molten metal is in direct contact with the air, an oxide film may be formed on the surface, which will have a certain

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