Polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment

Abstract

The invention relates to polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment. The equipment comprises a filter prototype test loop, an absorption material test loop connected with the filter prototypetest loop, and an air bypass loop, wherein the filter prototype test loop comprises a filter prototype, a test loop air inlet pipe connected with an air inlet end of the filter prototype, a test loop air outlet pipe connected with an air outlet end of the filter prototype, a tracer gas injection port and a aerosol injection port which are formed in the test loop air inlet pipe, an online gamma spectrometer connected with the test loop gas inlet pipe and the test loop gas outlet pipe, and other measuring instruments used for measuring other nuclides or gases added according to needs. The equipment can simulate and reproduce temperature and humidity environmental conditions ubiquitous when pollution gas discharged by nuclear facilities from normal operation to severe accident working conditions, is used for researching prototypes of materials or equipment related to operation under pollution conditions, and is efficient and reliable in simulation.

Description

technical field [0001] The invention relates to the research field of radioactive gaseous iodine simulation and purification, in particular to a multi-form radioactive iodine environmental simulation and equipment comprehensive evaluation equipment. Background technique [0002] Controlling the release of radioactive gaseous substances into the environment by means of air cleaning equipment installed in ventilation systems is a major nuclear safety concern. Iodine adsorber is used as the main purification equipment for the ventilation system of nuclear power plants and research reactors, and is used to control the release of gaseous radioactive iodine under all foreseeable conditions (including accident conditions and normal conditions). Since the Fukushima nuclear accident, domestic and foreign regulatory authorities have been raising stricter management and application requirements for gas emissions during normal operation of nuclear facilities, requiring relevant design i...

AI Technical Summary

Problems solved by technology

[0003] At present, my country has the ability to test the performance of nuclear air purification systems under normal operating conditions of nuclear facilities, but in terms of comprehensive evaluation tests of radioactive gas purification materials and equipment, gaseous radioactive iodine generators are not representative enough, and currently only a single The preparation of radioactive elemental iodine or methyl iodide as a tracer for evaluation under specific conditions has resulted in the performance testing of radioactive iodine adsorption materials and equipment being unable to carry out simulated comprehensive evaluation of the actual environment, especially accident conditions.

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