Comprehensive experiment loop system for working medium forced circulation of heat conduction oil

Abstract

The invention relates to a comprehensive experiment loop system for working medium forced circulation of heat conduction oil. The comprehensive experiment loop system comprises a main experiment loop, a cooling circulation loop and a data collection and control system, wherein Dowtherm-A heat conduction oil is taken as a working mechanism of the main experiment loop, and water is taken as a working mechanism of the cooling circulation loop; the main experiment loop comprises an oil conduction oil tank, a centrifugal pump, an regulating valve, a flow meter, an experiment body section and a heat exchanger are connected according to the working mechanism flow direction; and the cooling circulation loop comprises a cooling agent tank, a centrifugal pump, an regulating valve, a flow meter, a heat exchanger and an air cooling tower. The heat conduction oil is guided out from the oil conduction oil tanks through the centrifugal pumps, enters an experiment body through the flow meters after being subjected to flow regulation through the regulating valves, finally is cooled through the heat exchanges and flows back to the oil conduction oil tank so as to form closed forced circulation flow; the cooling circulation loop is connected with the main experiment loop through the heat exchangers, and heat of the main experiment loop is discharged. The comprehensive experiment loop system can simulate the flow heat exchanging property of FLiBe, is easy to operate, economic, safe and high in measurement accuracy and can be used for implementing the experimental study on core stacking of a molten salt reactor ball bed, heat convection of pipelines and flow resistance of key equipment.

Description

technical field [0001] The invention relates to an experimental research system for the flow and heat transfer characteristics of high-temperature molten salt working medium in molten salt reactor system equipment in the technical field of verification experiment research in the field of high-temperature molten salt reactor, more precisely, it is a heat-conducting oil working medium Forced circulation comprehensive experimental loop system. Background technique [0002] The thorium-based molten salt reactor is listed as the key reactor type for the fourth-generation nuclear energy system because of its advantages in safety, economy and sustainability. Its primary circuit coolant adopts high temperature molten salt FLiBe. During the development of molten salt reactors, the convective heat transfer between the core and pipes and the flow resistance characteristics of key equipment are key parameters in the design and safety verification of thorium-based molten salt reactors, ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a comprehensive experimental circuit and experimental method for the forced circulation of heat-conducting oil working fluid, to solve the problem of difficulty in building the reactor core due to the corrosion and toxicity of the existing molten salt FLiBe at high temperatures, the lack of measuring instruments and the poor accuracy Problems with pipeline convection heat transfer experiment and flow resistance experiment platform of key equipment

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