A slice type liquid heavy metal natural circulation device

A liquid heavy metal, natural circulation technology, applied in cooling devices, nuclear power generation, climate sustainability, etc., can solve the problems of small diameter of circular tubes, inability to simulate and verify thermal and hydraulic phenomena, and achieve the effect of enriching experimental data

Active Publication Date: 2017-03-15
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Only temperature and flow data information in the direction of the pipeline can be obtained on these devices, and the diameter of the circular tube is relatively small, so it is impossible to conduct global experimental simulation and verification of the thermal-hydraulic phenomena that actually occur in the reactor core as a whole

Method used

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  • A slice type liquid heavy metal natural circulation device
  • A slice type liquid heavy metal natural circulation device
  • A slice type liquid heavy metal natural circulation device

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, a slice type liquid heavy metal natural circulation device of the present invention, the device includes: storage tank 1, liquid level gauge 2, gas pipe 3, drain and fill pipe 4, drain and fill valve 5, rectangular circuit main body 6, insert Type thermocouple 7, heat exchanger 8, expansion tank 9, liquid level gauge 10, gas pipe 11, gas lift pipe 12, upper baffle 13, Venturi flowmeter 14, heating assembly 15, lower baffle 16 ;The storage tank 1 is located under the device to store liquid heavy metals, and is equipped with a liquid level gauge 2 and an air pipe 3; the discharge and charge valve 5 is located on the discharge and charge pipe 4 between the storage tank 1 and the rectangular circuit main body 6; the plug-in thermocouple 7 Evenly distributed on the surface of the rectangular circuit main body 6 to ...

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Abstract

The invention discloses a sliced natural circulation device for heavy liquid metal. A device body adopts the rectangular sliced structural design and mainly comprises a rectangular loop main body, a heat exchanger, a heating assembly, a flowmeter and an inserting thermocouple. At the international level, the research on a natural circulation experiment of the heavy liquid metal is mainly performed in an experiment platform formed by round tubes; the device disclosed by the invention adopts the rectangular sliced square box design and a reactor core body structure of a reactor is simplified, so that complex flow filed information which are more abundant than a round tube type natural circulation loop and similar to operating conditions of a real reactor is acquired while the development cost of an experimental verification platform is reduced; qualitative simulation and confirmatory research for a heavy liquid metal flow field inside the reactor can be realized; the device can be applied to the field of technology research and development and basic scientific research of the nuke industry as well as verification of analysis software and simulation software of a thermal hydraulic system, and has important research and engineering values.

Description

technical field [0001] The invention belongs to the field of thermohydraulics research of liquid metal reactors, relates to the field of research on the flow and heat transfer characteristics of liquid heavy metals, and specifically relates to a sliced ​​type liquid heavy metal natural circulation device, which can provide structural design verification for fourth-generation lead-based cooling reactors. Experimental data, accumulation of engineering technology experience. Background technique [0002] In recent years, liquid heavy metal alloys (Pb, PbBi) have become one of the candidate coolants for fourth-generation nuclear reactors in the world because of their unique neutronic properties, heat transfer capabilities and unique safety. Committed to the research of thermal hydraulic characteristics of liquid heavy metal coolants, and for this purpose, various liquid heavy metal thermal hydraulic circuit experimental devices have been established successively, and research on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C15/06G21C17/017
CPCY02E30/30
Inventor 陈刘利吕科峰高胜黄群英
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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