A liquid metal reactor heat exchanger breach accident simulation water injection experiment device and measurement device

Abstract

The invention discloses a water injection experiment device for liquid metal reactor heat exchanger rupture accident simulation and a measuring device. The water injection experiment device comprises a main container, a high-pressure water tank, an outer water injection pipeline and an inner pipeline installed in the outer water injection pipeline, wherein a plurality of locating insertion holes are formed in the opposite positions of the inner pipeline and the outer pipeline, plug pins penetrate through the locating insertion holes, and are screwed down through nuts to be fixed to an inner barrel and an outer barrel, and the water injection depth of the inner pipeline is adjusted through connection. A throttling hole is formed in the front end surface of the side surface of the inner pipeline, and adjustment of the water injection hole diameter can be achieved. A plug with a slope surface is installed at the front end of the throttling hole, and breakage of the plug under the condition of the assigned pressure is achieved through adjustment of the thickness and the material of the contact surface. High-pressure water is stored in the high-pressure water tank, passes through the water injection pipelines and the throttling hole through a gas system, and breaks connection between the plug and the inner water injection pipeline to enter liquid heavy metal, covering of the throttling hole is rapidly achieved, the liquid heavy metal is prevented from backwards flowing, and then the post-accident hazard is measured through a rapid temperature and pressure sensor and a high-speed camera.

Description

technical field [0001] The invention relates to the technical field of liquid metal reactor heat exchanger breach accident simulation, in particular to a liquid metal reactor heat exchanger breach accident simulation water injection experiment device and a measuring device. Background technique [0002] Two-phase flow widely exists in power, chemical industry, petroleum, metallurgy, pipeline transportation, medicine, refrigeration, nuclear energy and other fields. It is common to have gas-liquid two-phase flow, which exists in the water wall of boilers, petrochemical transportation pipelines and other heat and mass transfer equipment. The gas-liquid two-phase flow is very complex, the gas can be compressed, the phase interface is not fixed, there is slip between the two phases, the physical and chemical properties of the two phases are quite different, and the law of motion has not been fully understood, so the measurement of the two-phase flow is difficult. Common gas-liqu...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the defects of existing devices such as single function, and provide a liquid metal reactor heat exchanger breach accident simulation water injection device and measurement device, which has the advantages of more realistic simulated breach, complete functions, and convenient disassembly. , which can study the experimental research of heat exchanger breaches with different breach sizes, water injection depth adjustments, and specified pressure blasting

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