CAJ | 학술논문

采用水-空气作为介质对湿法烟气脱硫(WFGD)筛板式喷淋塔阻力特性进行了试验研究,分析了筛板孔径、开孔率、厚度、安装位置以及液相喷淋量等因素对筛板喷淋塔内阻力特性的影响.结果表明:在WFGD系统筛板式喷淋塔中必须保证足够大的孔径与塔径比,以适合高速烟气条件;在烟气流速较低条件下,筛板孔径越小,压降越大,而烟气流速较高时则相反;筛板厚度对于压降影响较小;提高开孔率和筛板安装高度以及减少喷淋量均能降低塔内阻力.
채용수-공기작위개질대습법연기탈류(WFGD)사판식분림탑조력특성진행료시험연구,분석료사판공경、개공솔、후도、안장위치이급액상분림량등인소대사판분림탑내조력특성적영향.결과표명:재WFGD계통사판식분림탑중필수보증족구대적공경여탑경비,이괄합고속연기조건;재연기류속교저조건하,사판공경월소,압강월대,이연기류속교고시칙상반;사판후도대우압강영향교소;제고개공솔화사판안장고도이급감소분림량균능강저탑내조력.
Experimental study on pressure drop characteristics in a wet flue gas desulfurization (WFGD) sieve tray spray scrubber was carried out by taking water and air as the medium, during which factors influencing the pressure drop characteristics were discussed, such as the diameter and percentage of the openings, the thickness and location of the tray and the liquid spray rate etc. Results show that the diameter ratio of the opening to the scrubber in the WFGD sieve tray spray scrubber system should be big enough so that it can satisfy the high-speed flue gas requirements. Under low flue gas velocity conditions, the smaller the openings' diameter, the higher the pressure drop will be, and under high flue gas velocity conditions, the variation is just the opposite. Thickness of the tray has little influence on the pressure drop, and the pressure drop can be effectively reduced by raising the percentage of openings, lifting up the location of the tray and lowering the spray rates.