Temperature and humidity controllable micron-sized particle turbulence agglomeration experimental device

Abstract

The invention discloses a temperature and humidity controllable micron-sized particle turbulence agglomeration experimental device, and belongs to the field of temperature and humidity controllable turbulence field collision agglomeration experimental devices. The temperature and humidity controllable micron-sized particle turbulence agglomeration experimental device comprises a gas particle generation device, a gas particle mixing and heating device, a turbulence collision agglomeration device, a high-speed camera device and a gas particle discharge treatment device, by means of the device, the airflow speed can be controlled to be 0.5-20 m / s, and the airflow temperature can be controlled to be 220-230 DEG C; therefore, the environment condition and the temperature and humidity controllable condition are realized; the collision agglomeration experiment research work among micron-scale particles can effectively simulate the actual industrial processes such as the particle deposition process in a flue gas pipeline, the deposition process when particles in an electrostatic dust collector reach a dust collecting plate and the ash deposition on the surface of a heat exchange pipe, Meanwhile, effective support is provided for the theoretical research of the collision agglomeration process among the particles.

Description

technical field [0001] The invention relates to an experimental device for turbulent agglomeration of micron-sized particles with controllable temperature and humidity, and belongs to the field of experimental devices for turbulent flow field collision and agglomeration with controllable temperature and humidity. Background technique [0002] The phenomenon of fine particle deposition exists in many fields such as energy, environmental engineering, chemical industry, microelectronics and mechanical engineering. On the one hand, fine particle deposition generally has a negative effect, such as the heat transfer deterioration caused by the accumulation of dust on the surface of the heat exchange tube in the boiler; Deposition in MEMS may cause mechanical failure or cause flow blockage, deposition of atmospheric fine particles in the human respiratory tract / alveoli causing disease, etc. On the other hand, fine particle deposition can be enhanced in practice. Taking the field o...

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Problems solved by technology

On the one hand, fine particle deposition generally has a negative effect, such as the heat transfer deterioration caused by the accumulation of dust on the surface of the heat exchange tube in the boiler; Deposition in MEMS may cause mechanical failure or flow blockage, deposition of atmospheric fine particles in the human respiratory tract / alveoli causing disease, etc.

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