Continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device

Abstract

The invention discloses a continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device. The device comprises a dehumidifier, an air compressor, an air heat exchanger, a heater, a storage tank, a mixing chamber, a nozzle, an experiment bench, an experiment box, a cyclone separator, an air cooler, a pond, a demister, three pressure gages, three ball valves, a flow gauge, two temperature gauges, a check valve, a high-speed camera and a computer. The continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device is used for researching weight loss laws of the material under different influence factors in the presence of high-temperature and high-speed gas-solid two-phase flow erosion effect in the harsh working condition; the high-speed camera is used for observing and recording motion tracks of particle impact specimens; the erosion abrasion laws of the material under the different working conditions can be obtained by combining theoretical analysis with experiment data; the high-temperature erosion abrasion model is built; the high-temperature and high-speed gas-solid two-phase flow erosion abrasion mechanism and influence factors thereof are disclosed; a theoretical basis can be provided for material selection and structure optimization of pipelines and valves of the coal chemical industry and the petroleum chemical industry; the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to an erosion wear test device, in particular to a continuous high-temperature high-speed gas-solid two-phase flow erosion wear test device. Background technique [0002] Erosion and wear widely exist in impellers, engines, pumps, valves, pipes, nozzles and related equipment in the fields of petrochemical, coal chemical, pneumatic conveying, electric power and aerospace, etc., which cause damage to machine parts, energy consumption and safety. important cause of danger. For example, the wear of valves and bushings in coal chemical plants, and the wear of various fan blades due to the erosion of solid particles, resulting in a decrease in production life and efficiency and waste of energy; erosion and wear caused by solid particle erosion in It is even more of a serious problem in piping systems for steam turbines, pumps, and heat exchangers. [0003] At present, in order to reduce the damage and loss of erosion wear, the hardnes...

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Problems solved by technology

However, due to the good erosion resistance of cemented carbide materials, it is often used in severe working conditions such as high temperature and high speed. The general test device cannot simulate the actual working conditions and conduct effective research on it. There are relatively few studies on wear properties, and the erosion mechanism is still unclear

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