Southwest Jiaotong University

Dongfang Electric Corporation

Xin Zhang

Wei Li

Jun Hu

Yang Li

Yuan Zhang

Jiang Liu

Wei Fan

Liyong Cao

Chunfei Zhang

Jie Huang

Pan Guo

Zhengning Liu

Qi Du

Xianqu Wang

Haifeng Liu

Yucai Li

Junfeng Shen

Hai Liu

Hongwei Hu

Jun Cheng

Danni Wu

Yuhong Xu

A diagnostic method and system for measuring potential and electric field of plasma are provided. According to operation parameters of a magnetic confinement fusion device and relevant parameter data of a plurality of candidate particle elements, signal-noise ratios are calculated. to select a neutral beam particle element. Beam trajectories varying in incident velocity, incident angle and sampling area are obtained by iterative calculation, and a preset parameter which enables the beam trajectories to pass through an entrance slit of an analyzer is obtained. A neutral beam that meets the preset parameter is injected into the plasma. An energy of the primary beam generated by collision ionization in a sampling area is measured, and potential of the sampling area is obtained according to law of conservation of energy. Sampling areas are detected to obtain potential spatial distribution of the plasma and a radial electric field, and the diagnostic is finished.

Diagnostic method and system for measuring potential and electric field of plasma

An external bed type double-fluidized bed system for preventing boiler contamination includes a fluidized bed combustion furnace, a cyclone separator, a coal ash distributor and a fluidized bed pyrolysis furnace. The fluidized bed combustion furnace is connected with the coal ash distributor, the coal ash distributor is connected with the coal ash inlet on a side wall of the fluidized bed combustion furnace through a return feeder with which the coal ash outlet of the fluidized bed pyrolysis furnace is also connected through an external bed, and the return feeder is connected with the fluidized bed combustion furnace. A fuel coal is pyrolyzed in the fluidized bed pyrolysis furnace at a temperature to volatize alkali chlorides into a pyrolysis gas, thereby reducing the content of the alkali chlorides contained in the coal in the fluidized bed combustion furnace and relieving the contamination to a convective heat-absorbing surface.

External bed type double-fluidized bed system for preventing boiler contamination

Growing community of inventors

Chengdu, China

Xin Zhang