Improved structure of reactor core water compensating box simulator

Abstract

The invention discloses an improved structure of a reactor core water compensating box simulator. The improved structure of the reactor core water compensating box simulator comprises a reactor core water compensating box simulator barrel, the side face of the reactor core water compensating box simulator barrel is provided with a magnetic turning plate liquid level meter and further provided with four layers of pressure measuring assemblies which are communicated through pulse pipelines, the pulse pipeline between every two adjacent layers of pressure measuring assemblies is provided with a pressure difference liquid level meter, and the side face of the reactor core water compensating box simulator barrel is further provided with nine sets of temperature measuring assemblies. The problem that the false liquid level will be produced during liquid level measurement due to the steam condensation action is solved, the liquid level measuring precision is greatly improved, temperature is measured through the nine sets of temperature measuring assemblies, the problem of fluid temperature layered measurement is solved, and the energy dissipation problem research difficulty of a reactor core water compensating box is lowered.

Description

technical field [0001] The invention relates to a high-pressure safety injection system in a passive core cooling system of a nuclear reactor, in particular to an improved structure of a simulation body of a core water supply tank. Background technique [0002] Core Make-up Tank (CMT for short) is the core equipment of the high-pressure safety injection system in the passive core cooling system of the third-generation nuclear reactor, which stores a large volume of high-pressure safety injection fluid for the high-pressure safety injection system. After non-LOCA accidents and LOCA accidents in the reactor, the core make-up water tank relies on gravity to passively inject low-temperature water into the core, and at the same time condenses the saturated steam water that enters the core make-up water tank through the pressure balance pipe in a natural circulation manner mixture. The core make-up water tank can provide relatively high flow safety injection to the core for a lon...

AI Technical Summary

Problems solved by technology

However, the steam condensation behavior in the core make-up water tank will cause false liquid level problems during liquid level measurement, which will affect the accuracy of liquid level measurement

In addition, there is a temperature difference between the fluid entering the core make-up water tank through the pressure balance pipe and the original fluid inside it, resulting in temperature stratification of the fluid, which increases the difficulty of research on the energy dissipation of the core make-up water tank

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