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Liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test

A liquid metal cooling and experimental system technology, applied in the field of liquid heavy metal natural circulation cooling reactor experimental system, can solve the problems of uneven core outlet temperature, large difference in core power density, difficult flow distribution, etc. Stable problem, uniform outlet temperature, effect of reducing experiment cost

Active Publication Date: 2014-11-26
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0008] Reactors with different operating modes have different core layouts and large differences in core power density, making it difficult to achieve proper flow distribution. The uneven effect of core outlet temperature is obvious, which may cause safety problems caused by overheating of certain components

Method used

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  • Liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test
  • Liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test
  • Liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, a kind of liquid metal cooling reactor experimental system that can realize critical and subcritical operation experiments provided by the present invention is composed of safety container 1, main container 2, support structure 3 in the reactor, core 4, central measuring column 5, main It consists of a heat exchanger 6, a refueling mechanism 7, a stack top cover 8, a control rod driving mechanism 9 and a neutron source 10.

[0028] The safety container 1 is composed of a cylindrical shell and a bottom head, which is similar in structure to the main container. Its function is that when the main container leaks, the safety container will contain the primary circuit coolant and ensure that the lead and bismuth liquid level in the main container is higher than The waste heat heat exchanger inlet window ensures the...

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Abstract

The invention discloses a liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test. The liquid metal cooling reactor experimental system consists of a safety vessel (1), a main vessel (2), a reactor inner supporting structure (3), a reactor core (4), a central measuring column (5), a main heat exchanger (6), a reloading mechanism (7), a reactor top cover (8), a control bar drive mechanism (9) and a neutron source (10); when the critical running test is performed, the neutron source (10) adopts a californium-252 neutron source or a Be-Am neutron source; when the subcritical running test is performed, the neutron source (10) adopts a spallation neutron source or a deuterium tritium neutron source, an isotopic neutron source and a fuel component in the middle part of the reactor core are replaced by an accelerator neutron source according to the real requirement of the spallation neutron source, and the reactor can have the subcritical running test. The reactor experimental system is naturally and circularly cooled by adopting liquid lead-bismuth or lead, so that the usability of the reactor can be improved, the experimental cost can be reduced, and the multifunctional reactor experimental system characteristics can be achieved.

Description

technical field [0001] The invention belongs to the technical field of reactor experiment system design and specifically designs a liquid heavy metal natural circulation cooling reactor experiment system capable of realizing critical and subcritical operation experiments. Background technique [0002] The liquid metal cooling reactor has a simple structure, and all the coolant is in one container, which avoids loss of primary coolant (LOCA) accidents and can effectively improve the safety of the reactor. It is an important candidate for advanced reactors. Among the six fourth-generation nuclear energy systems released by the International Atomic Energy Agency (IAEA), sodium-cooled fast reactors and lead-cooled fast reactors are both liquid metal-cooled reactors. In the accelerator-driven subcritical reactor (ADS) design, liquid metal is also used to cool the reactor. [0003] The liquid metal cooling reactor experimental system is the necessary system equipment for the deve...

Claims

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Application Information

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IPC IPC(8): G21C1/30
CPCY02E30/30
Inventor 柏云清吴宜灿宋勇
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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