期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：227
期号：3
页码：032029
DOI：10.1088/1755-1315/227/3/032029
出版社：IOP Publishing
摘要：In order to explore the best air distribution scheme, and set up a air distribution test bench, which is according to the similarity principle, in this paper, a 350MW supercritical boiler of a power plant is taken as the research object. This test the selection of fan power and the design of bellows and air duct size is according to the similarity principle. According to the test procedure, the resistance coefficient and flow rate of the damper are measured when the single and each damper is changed. It is found that the drag coefficient and flow rate are greatly affected by the opening of the damper. When the opening of the damper changes from 15 to 30 degree, they both change dramatically. When the opening of the damper is greater than 30 degree, the change of them tends to be stable. At the same time, different locations of damper will interact with each other. The resistance coefficient curve is not only plays a guiding role in the manual control of the old equipment, but also plays a vital role in the programming of the modern automatic control of the damper. At the same time, the flow distribution law plays a guiding role in the design of the air distribution control system. The resistance coefficient curve and the flow distribution curve obtained in this paper can play a guiding role in the test design and boiler operation regulation of power plant.
