Oxidation resistance testing equipment

Abstract

The invention provides oxidation resistance testing equipment which comprises a control system, a gas circuit system, a thermostatic waterbath system, a thermal diffusion furnace, a cooling system and an exhaust system, wherein the control system is used for displaying and alarming the control temperature, gas flow and vapor content in the gas; the gas circuit system is connected with the control system, the thermostatic waterbath system and the thermal diffusion furnace, and is used for filling the working gas or protective gas into the thermal diffusion furnace; the thermostatic waterbath system is connected with a working gas circuit of the gas circuit system, and is used for enabling the working gas to carry vapor into the thermal diffusion furnace; the thermal diffusion furnace is connected with the gas circuit system and the thermostatic waterbath system, and is used for heating a solid element to a set experimental temperature and keeping the temperature for a certain time; the cooling system is connected with the thermal diffusion furnace, and is used for cooling a thermal diffusion furnace end flange and a furnace body; and the exhaust system is positioned at the tail part of the gas control system, and is used for collecting and discharging the tail gas. The oxidation resistance testing equipment provided by the invention can accurately and conveniently control the gas switching and flow, automatically executing temperature rise curves and displaying the operating conditions of all the components in real time, and the intelligence and safety of the equipment are improved.

Description

technical field [0001] The invention relates to the technical field of detecting the oxidation resistance of solid elements, in particular to a special device for detecting the oxidation resistance of spherical fuel element substrate graphite balls. Background technique [0002] At present, the spherical fuel element used in my country's pebble bed high-temperature gas-cooled reactor has a diameter of 60 mm, and the structure is spherical coated particles (TRISO) dispersed in the graphite matrix of the fuel zone. As the structural material of the fuel element, matrix graphite enables the encapsulating fuel particles to achieve thermohydraulic conditions, including transfer of heat to the coolant helium. And as a moderator material, it has sufficient moderation ability for fast neutrons. At the same time, it also has a certain ability to retain fission products. [0003] Due to the possible presence of H in the reactor 2 O, O 2 , CO, CO 2 Such impurities, under the accid...

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a device for detecting the anti-oxidation performance of solid components, so as to overcome the defects of poor data reliability caused by complex operation, manual intervention, low precision of temperature control and gas control in existing detection devices

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