Test system and test method for performance evaluation in active equipment in accident environment

Abstract

The invention discloses a test system and a test method for performance evaluation of active equipment in an accident environment. The system comprises the active equipment arranged in an environmentbox, the environment box is used for simulating the environment working condition in a water loss accident environment, the system further comprises a main loop and a switching loop, the main loop, the switching loop and the active equipment are connected in series, the main loop is used for simulating loop pressure difference and temperature difference, and the switching loop is used for detecting the action switching capacity of the active equipment. After the water loss accident environment is established in the environment box, the standby active equipment overcomes the loop pressure difference and the temperature difference, starts to work and stably operates, verifies the pressure difference starting and stable operation capacity of safety-related active equipment under the environment working condition, and guarantees the capacity of starting an auxiliary safety system; through the switching loop, the switching action capability of the active equipment can be tested, and whetherthe auxiliary safety system works normally or not to prevent the reactor core from melting after a water loss accident is verified.

Description

technical field [0001] The invention relates to the technical field of nuclear-level equipment testing, in particular to a test system and a test method for performance evaluation of active equipment under an accident environment. Background technique [0002] Auxiliary safety systems such as waste heat removal systems and safety injection systems are installed in nuclear power plants to improve safety. When the primary circuit system ruptures or the main steam pipe ruptures and a loss of water accident occurs, these safety systems are activated, and the safety system injects water into the core or the primary circuit to prevent melting and maintain the integrity of the core. As the active equipment that injects coolant into the core under the loss of water accident environment (LOCA), the working performance and reliability of the active equipment under LOCA conditions determine the safety level of the entire nuclear power plant. [0003] According to the setting requireme...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a test system and test method for performance evaluation of active equipment in an accident environment, to solve the problem in the prior art that the action capability of active equipment in an accident environment cannot be identified or evaluated, and to achieve an objective evaluation of active equipment in a loss of water accident Switching operation performance and stable operation ability in the environment

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