化工企业火炬系统的设计与研究

发布时间：2018-07-01 09:56

本文选题：火炬系统设计 + 马赫数　；参考：《大连理工大学》2015年硕士论文

【摘要】：高架火炬与地面火炬在化工装置火炬系统中各自具有性能和技术上的优势。目前,地面火炬系统由于其安全性和对环境影响较小。很多中小型企业开始选用地面火炬进行火炬排放气的处理,然而由于其处理能力有限,在大中型化工装置中,高架火炬仍然是火炬设计的主流。高架火炬的研究在化工装置的建设和生产中仍具有重要的意义。高架火炬设计中最重要的任务是火炬的高度和直径的确定,在设计阶段,火炬的高度和直径直接影响总图的规划和占地,在建设和生产阶段则影响火炬的投资和炼化企业的进一步改扩建。本文综合叙述了国内外火炬的研究现状和发展动态,以某工厂合成氨装置的火炬设计为例,对火炬的工艺流程进行了改进。在设计过程中,本文针对对火炬高度和直径起主要影响因素的数值即马赫数、辐射热及噪声参数,进行了重点分析并确定了其取值,经计算最终确定火炬气总管的直径为1.2米,火炬的直径为2.17米,高度为45米,通过火炬头处噪声计算确定了火炬选址方案,此外目前高架火炬主要阻火装置在生产运行中存在一些问题,本文对阻火设备的选型和结构设计方面进行了相应的改造,取得了良好的经济和安全效果。
[Abstract]:The elevated torch and the ground torch have their respective performance and technical advantages in the torch system of chemical plant. At present, the ground torch system has little effect on environment because of its safety. Many small and medium-sized enterprises begin to use the ground torch to deal with the discharge gas of the torch. However, because of its limited handling capacity, the elevated torch is still the mainstream of torch design in large and medium-sized chemical plants. The study of elevated torch is still of great significance in the construction and production of chemical plant. The most important task in the design of the elevated torch is to determine the height and diameter of the torch. In the design stage, the height and diameter of the torch directly affect the planning and occupation of the overall plan. In the construction and production phase will affect the torch investment and the further expansion of refinery enterprises. In this paper, the research status and development trend of torch at home and abroad are comprehensively described. Taking the torch design of a synthetic ammonia plant in a factory as an example, the technological process of the torch is improved. In the design process, this paper focuses on the value of Mach number, radiation heat and noise parameters, which is the main factors affecting the height and diameter of the torch, and determines its value. The diameter of the torch gas main pipe is determined to be 1.2 meters by calculation. The diameter of the torch is 2.17 meters and the height is 45 meters. Through the calculation of the noise at the torch head, the torch site selection scheme has been determined. In addition, at present, there are some problems in the production and operation of the main fire arresting device of the elevated torch. In this paper, the type selection and structure design of fire arrester are reformed, and good economic and safety results are obtained.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ052.7

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