Equipment leak detection experimental system and method under pressure environment maintenance conditions

Abstract

The invention discloses an equipment leakage detection experiment system and method under pressure environment maintenance conditions, comprising a water supply system, a water storage system, a water level maintenance system and a heating experiment device, and the water supply system is connected to the water storage system through a water supply pipeline to replenish water The water storage system is connected with the water level maintenance system through the water delivery pipeline to maintain its water level constant, and a regulating valve and a flow meter are set on the water delivery pipeline, and the water level maintenance system is connected with the heating experimental device through the communication pipeline to provide stable water supply, and in the communication A communication cut-off valve is set on the pipeline; the heating experiment device includes a pressure test container, and a heating component is arranged in the pressure test container, and a pressure transmitter is installed at the entrance of the pressure test container to monitor the pressure value of the heating component in real time. A discharge pipe is installed at the outlet of the container, and a discharge cut-off valve is installed at the end of the discharge pipe; the tail end of the discharge pipe is set as an upwardly inclined pipe, with an inclination angle range of 20° to 60°.

Description

Technical field [0001] The invention relates to the field of nuclear equipment experiment, in particular to an equipment leak detection experiment system and method under pressure environment maintenance conditions. Background technique [0002] Comparing the three serious accidents that have occurred in the world, it can be found that keeping the core melt in the pressure vessel and ensuring the integrity of the reactor pressure vessel can greatly alleviate the further development and deterioration of serious accidents. Based on the digestion and absorption of existing advanced reactor melt retention strategies, China National Nuclear Corporation proposed to set up a reactor cavity water injection cooling system to cool the lower head of the pressure vessel through active and passive methods to contain the molten core Maintain the integrity of the pressure vessel in the lower chamber of the pressure vessel. Therefore, under severe accident conditions, the flow and heat transfer...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and the purpose is to provide a device leakage detection experimental system and method under pressure environment maintenance conditions, to solve the problem of pool evaporation conditions where the prior art cannot be used as a laboratory or industrial application. The water level maintenance device cannot meet the leak detection requirements of equipment with lower design pressure

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