Multi-loop coupled heat conduction passive waste heat discharging system test simulation device

Abstract

The invention discloses a multi-loop coupled heat conduction passive waste heat discharging system test simulation device which comprises a reactor simulation body and loop system, a passive waste heat discharging system and a seawater system, wherein the reactor simulation body and loop system is used for simulating a thermodynamic state of a reactor in a shut-down or working accident state; thepassive waste heat discharging system is used for discharging heat generated by the reactor simulation body and loop system, and transmitting the heat to the seawater system through an emergency condenser; the seawater system is used for simulating seawater input and bringing away and discharging the heat of the emergency condenser. According to the multi-loop coupled heat conduction passive wasteheat discharging system test simulation device, in a process that steam generated on a secondary side of a waste heat discharging heat exchanger is discharged into the emergency condenser for coolingthrough a natural circulating pipe to form under-heating water, a waste heat discharging loop control valve is added, so that waste heat discharging situations under various working conditions can besimulated; the waste heat discharging loop control valve can be used for adjusting different discharging resistances.

Description

technical field [0001] The invention relates to the field of waste heat discharge tests under reactor shutdown or working condition accidents, in particular to a test simulation device for a passive waste discharge system with multi-loop coupling heat conduction. Background technique [0002] For a long period of time after the shutdown of the reactor, waste heat is generated due to the fission of the remaining fuel and the decay of fission products, and the continuously generated waste heat gradually increases the temperature and pressure of the core; in order to ensure the safety of the reactor, the waste heat of the reactor must be discharged in a timely and reliable manner Otherwise, accidents such as core melting pressure boundary and containment damage will occur. Passive waste heat removal technology, as the main feature of advanced PWR nuclear power plants, has attracted the attention of nuclear power developed countries, and many advanced reactor types at home and a...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a multi-loop coupled heat conduction passive waste heat discharge system test simulation device to solve the problem that the passive simulation experiment device in the prior art does not meet the experimental requirements of the multi-loop coupled heat conduction passive waste heat discharge system , to achieve the purpose of being able to withstand high temperature, high pressure and high current, to realize the simulation of the prototype and to carry out thermal hydraulic experiments repeatedly

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