Experimental device and method for researching flow heat exchange characteristics of ultra-high-temperature rare gas

Abstract

The invention discloses an experimental device and method for researching flow heat exchange characteristics of ultrahigh-temperature rare gas. The device comprises a gas loop consisting of a gas storage bottle group, a heating experimental section, a cooling experimental section, a gas-water heat exchanger, a high-pressure gas pump, a vacuum pump, a gas pipeline and a valve on the pipeline, a cooling oil loop consisting of an oil storage tank, an oil pump, an oil-water heat exchanger, an oil pipeline and a valve on the pipeline, and a cooling water loop consisting of a water tower, a water pump, a water conveying pipeline and a valve on the pipeline. The device is used for simulating the flowing heat exchange characteristics of rare gas in an ultrahigh-temperature gas reactor. The experiment loop adopts a high-pressure gas pump, a heating experiment section and a cooling experiment section are arranged at the same time, according to the experimental device, experimental study on heating flow heat exchange characteristics and experimental study on cooling flow heat exchange characteristics of the high-temperature rare gas in different states are achieved, the device can bear the working condition of the ultrahigh-temperature rare gas, meanwhile, the economical efficiency of the experimental device is considered, the experimental process is easy to operate, and an experimental loop has safety and reliability.

Description

technical field [0001] The invention relates to the technical field of ultra-high temperature gas reactor thermal hydraulics, in particular to an experimental device and method for studying flow and heat transfer characteristics of ultra-high temperature rare gas. Background technique [0002] Ultra-high temperature gas-cooled reactor has the advantages of high power conversion efficiency and huge potential application market. It is a new type of nuclear reactor with development potential, and has received continuous attention from researchers in recent years. [0003] Rare gas is used as the working gas in the ultra-high temperature gas-cooled reactor. Its heating flow heat transfer characteristics inside the core and cooling flow heat transfer characteristics in the process of energy conversion / transfer outside the core are important in the ultra-high temperature gas-cooled reactor. thermohydraulic phenomena. In the reactor core, the rare gas used as the working medium ne...

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Problems solved by technology

[0004] In view of the above research ideas, the existing domestic and foreign research programs have the following deficiencies: 1) The lack of research experimental devices for ultra-high temperature rare gases; 2) The experimental devices cannot operate stably for a long time under ultra-high temperature conditions; 3) The experimental devices All use tungsten alloy, expensive

These design drawbacks limit the in-depth research on the flow and heat transfer characteristics of ultra-high temperature rare gases, and hinder the development of ultra-high temperature gas-cooled reactors

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