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A new optical probe working in high temperature fluidized beds

机译：在高温流化床中工作的新型光学探头

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A new probe for the measurement of bubble hydrodynamics in high temperature fluidized beds was presented in this paper. The whole probe consists of 2 optical probes at 2 different levels of immersion in the bed. Each optical probe is set within a 5X10~3m o. d. copper tube and is water-cooled. It is composed of 3 optical fibers, one for light emission (with a diode laser as light source), the other for receiving the reflected light from the bed. This probe has been successfully used in a laboratory-scale electrical-heated bubbling bed up to almost 850 deg C, with 3 sand powders of mean diameter ranging from 0.28 mm to 1.415mm and a pilot bliler with coal burning.
机译：本文提出了一种用于测量高温流化床中气泡流体动力学的新探针。整个探头由2个光学探头组成，分别在2种不同的浸入水中。每个光学探头设置在5X10〜3m o范围内。 d。铜管并进行水冷。它由3根光纤组成，一根用于发光（使用二极管激光器作为光源），另一根用于接收来自床的反射光。该探头已成功用于高达850℃的实验室规模的电热鼓泡床中，具有3种平均直径范围从0.28 mm至1.415mm的沙粉和带有燃烧煤的中试气泡器。

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