Experimental device and method for assessing grain flow collective friction abrasion behavior

Abstract

The invention provides an experimental device and method for assessing grain flow collective friction abrasion behavior. The experimental device comprises a host power system, a transmission system, amain body pipeline loop, a changeable friction sample component, a vacuum system, a temperature control heating system and a platform support structure; the host power system is used for driving themain body pipeline loop; the transmission system is used for transmitting the power of the host power system to the main body pipeline loop; the main body pipeline loop is rotated under the driving ofthe host power system, thereby simulating multiple flow states of spallation target grain flow; the changeable friction sample component and the main body pipeline loop are used for placing the friction sample; the main body pipeline loop is arranged in a heating furnace body, and the temperature control heating system is used for uniformly heating the main body pipeline loop; the vacuum system is connected with the main body pipeline loop and used for realizing the vacuum and atmosphere protection of the main body pipeline loop; and the platform support structure is used for providing support for the experimental device.

Description

technical field [0001] The present disclosure relates to an experimental setup and method for evaluating the collective friction and wear behavior of particle flows. Background technique [0002] In the Accelerator-Driven Subcritical Transmutation Device (CiADS), the main function of the high-power spallation target is to produce a strong neutron source to transmute nuclear waste, which is the most critical part of the CiADS. The newly proposed particle flow spallation target has the advantages of no corrosion and high heat removal efficiency. However, since the spallation target needs to operate under extremely harsh working conditions, one of the main problems is that the particle flow will generate strong friction and wear during operation, which will affect the stability of the overall operation of the spallation target. and safety, so it is necessary to find a practical method to evaluate the friction and wear of particle flow targets. Due to the harsh operating envir...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing tribological equipment can only carry out relatively simple friction and wear experiments, and they are fixed friction pairs, with a single friction form, a single load, and experimental conditions. Evaluate the collective friction and wear behavior of particle targets (rolling, sliding, collision impact, etc.)

An existing high-temperature vacuum rotary friction testing machine can semi-quantitatively evaluate the friction and wear of particles in the case of dense flow, but cannot evaluate the friction and wear of sparse flow and the erosion wear of pipelines

However, in the particle flow spallation target circuit, sparse flow and dense flow exist simultaneously, and the collision and erosion wear caused by sparse flow may be more serious than the friction and wear caused by dense flow

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