Test system for measuring aerosol concentration and behavior under test conditions

Abstract

The invention relates to the technical field of aerosol tests in a containment, and specifically discloses a test system for measuring aerosol concentration and behavior under test conditions. The test system includes a test container, an aerosol generation system, a water temperature control system, a steam generation system, an aerosol measurement system and a hydrogen combustion system, whereinthe aerosol generation system, the water temperature control system, the steam generation system, the aerosol measurement system and the hydrogen combustion system are simultaneously connected with the test container. The test container is of a tube structure of which an interlayer is arranged on the side wall, and thetemperature in the test container is controlled through the water temperature control system. The aerosol generation system can generate aerosols and transport the aerosols to the test container. The steam generation system can provide saturated steam at a fixed temperature forthe test container. The hydrogen combustion system generates required expanded air flow for the test container by controlling hydrogen combustion. The test system for measuring the aerosol concentration and behavior under the test conditions can provide test simulation of a real aerosol environment as much as possible, and systematic and comprehensive test simulation study of the aerosol migrationbehavior in apassive containment of a third-generation nuclear power plant is convenient.

Description

technical field [0001] The invention belongs to the technical field of aerosol test in a containment vessel, and in particular relates to a test system for measuring aerosol concentration and behavior under test conditions. Background technique [0002] In traditional second-generation PWRs, dry-sealed containment vessels are generally used. The containment vessel is made of reinforced concrete, and a containment spray system is specially set up to reduce the pressure and temperature inside the containment vessel under accident conditions. The passive containment cooling system is installed in the third-generation large-scale advanced pressurized water reactor AP1000. The system consists of a water storage tank integrated with the containment shielding structure, and the water is delivered from the water tank to the containment shell through the flow distribution device. The piping of the body, as well as related instruments, piping and valves. [0003] In the case of seve...

AI Technical Summary

Problems solved by technology

The test system includes the containment model, aerosol generation, measurement system, etc., but the containment model takes the second-generation PWR containment as the research object, and cannot be used to simulate the passive dynamics of the third-generation nuclear power plant AP1000. containment cooling system, therefore, a new test system needs to be designed to test

[0017] In addition, except for the THAI facility, the control of the wall temperature is not considered

However, THAI only designed an independent heating / cooling envelope, which cannot deal with the heat dissipation problem under the condition of a large amount of steam condensation

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