高黏度化工废液喷枪设计及雾化性能试验研究  

Design and Experimental Study of High Viscosity Chemical Waste Liquid Atomizer

作　　者：马尊领 李渊 兰剑 张建辉 MA Zun-ling;LI Yuan;LAN Jian;ZHANG Jian-hui(Shanghai Marine Diesel Engine Research Institute,Shanghai 201108,China)

机构地区：[1]中国船舶集团有限公司第七一一研究所,上海201108

出　　处：《石油化工设备》2024年第1期14-19,共6页Petro-Chemical Equipment

摘　　要：石油化工、印染企业产品生产过程中会产生大量含有机物的高黏度废液,通常采用工业焚烧炉高温焚烧的方式进行处理。废液喷枪作为焚烧炉装置中的核心设备,其雾化性能的优劣直接关系到焚烧炉处理废液的效果。基于给定的废液流量、温度和压力以及设定的雾化介质压力和温度,重新设计废液喷枪,并采用试验的方式对喷枪在不同雾化介质压力下的雾化性能进行了研究,最终在实际项目中进行了应用。试验和实际应用结果表明,在废液参数不变的情况下,雾化介质压力由0.4 MPa(G)提高到0.6 MPa(G)时,液滴时均索达尔平均直径由80.69μm减小到73.18μm,索达尔平均直径没有显著提高,但瞬时液滴粒径最大值由98μm降至81μm,显著减小。实际应用时,通过观察焚烧炉炉膛燃烧情况,新设计的废液喷枪使得燃烧更加充分,解决了燃烧不完全问题和冒火星现象,通过取样检测,烟气排放特征污染物也达到了标准规定的排放限值。A lot of high viscosity organic waste liquids are produced during the production process of petro-chemical printing and dyeing enterprises.The waste liquids are usually processed by high-temperature burning in the industrial incinerator.As the key equipment for the incinerator,the performance of the atomizer is directly related to the effectiveness of waste liquid processing in the incinerator.The waste liquid atomizer is redesigned according to the flow,temperature,and pressure of the waste liquid under a certain pressure and temperature of the atomizing medium.The spray experiments of the atomizer are made with different pressures of the atomizing medium.The atomizer was verified in the project.Experiments and practical application results show that,in the case of the waste liquid parameters remain unchanged,the atomizing medium pressure from 0.4 MPa(G)to 0.6 MPa(G),the Sauter mean diameter(SMD)from 80.69μm to 73.18μm,SMD did not significantly improve,but the maximum value of the instantaneous droplet size from 98μm to 81μm,with a significant reduction.By observing the incinerator chamber combustion,the newly designed waste liquid atomizer makes the combustion more complete,and solves the incomplete combustion,sparking phenomenon,through the sampling test,the flue gas emission characteristics of pollutants also meet the standard emission limits.

关 键 词：工业焚烧炉 高黏废液 喷枪 索达尔平均直径 喷雾燃烧 

分 类 号：TQ051.2[化学工程]