A kind of automatic release mechanism of high temperature melt and control method thereof

Abstract

The invention discloses a fully automatic release mechanism for high-temperature molten matter and its control method. The release mechanism of the invention includes a temporary storage container; the upstream of the temporary storage container is connected to a low-pressure container equipped with a melting furnace through an upstream release pipeline, and A protective gate valve and an upstream main sealing valve are sequentially provided on the upstream release pipeline from the low-pressure container to the temporary storage container; a downstream release pipeline is provided downstream of the temporary storage container, and a melt release pipe is provided on the downstream release pipeline. valve and a downstream main sealing valve, the melt release valve is arranged on a side close to the temporary storage container, and the downstream main sealing valve is arranged on a side away from the temporary storage container; the temporary storage container and its The downstream devices are all installed in the bottom high-pressure container; the temporary storage container communicates with the low-pressure container, the bottom high-pressure container and the pressure source respectively through pressure balance pipelines. The invention breaks through the difficulty of transferring high-temperature molten matter from a low-pressure environment to a high-pressure environment.

Description

technical field

[0001] The invention belongs to the technical field of mechanical automation, and in particular relates to a fully automatic release mechanism for high-temperature molten matter and a control method thereof. Background technique

[0002] In the study of the mechanism of severe accidents of nuclear reactors, when conducting experiments on the interaction between core melt and coolant, it is necessary to release high-temperature melt (≥1000°C) from an atmospheric melting furnace into a water pool in a pressure vessel for testing. During the transfer process, if the high-temperature molten material is in contact with pipes and valves for a long time, it will cause problems such as high-temperature yield of steel components, failure of pressure-bearing seals, and inability of valves to operate; at the same time, high-temperature molten material contacts steel components. When it is on the wall, it will form a hard shell to cover the wall after solidification, whi...

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