乙二醇厂空分装置检修安全性的研究

发布时间：2018-04-28 08:23

本文选题：空分装置 + 危险源　；参考：《上海师范大学》2015年硕士论文

【摘要】：随着我国石化工业的发展,石化装置的安全运行和检修问题日益突出。由于化工装置一般都十分复杂,并且化工装置一般都会涉及易燃易爆或有毒有害等物质,因此化工装置检修对于技术性的要求很高,而且难度较大。空分装置在乙二醇工厂中起着非常重要的作用。空分装置主要由动力系统和液体贮存系统等多种系统组成。因此鉴于其复杂性以及在乙二醇企业中的重要性,对研究空分装置检修的安全性十分必要。本文对2008年吉林石化公司乙二醇厂空分装置的检修安全性进行了研究,旨在为本企业及其它企业空分装置的检修提供研究素材和借鉴。首先在空分装置检修之前,使用LEC评级法并结合专家评价法,明确了液氧坑、液氧贮罐及附近和装置区存在的7处危险源,这些危险源可能引起装置着火和人员窒息等危害。其次,使用采用矩阵法评价法并结合专家评价法,明确了检修的环境因素主要是来自压缩机的噪音和加温管线的噪音。再次,强调了检修前需要做的准备工作。包括明确监护人和根据相关的检修规定完成对检修和操作人员的培训等。最后,根据吉林石化公司乙二醇厂空分装置的流程及容易出现的故障,明确了本次检修的内容。本次检修共计50项,其中公司控项目6项,工厂控项目5项,车间控项目39项。之后对检修项目的主要内容进行了说明。在检修完成之后,又总结了本次检修的成果和存在的不足。本次检修的成果主要包括顺利地解决了液氧排放系统安全隐患以及氧压机连接杆和十字头回水不畅等问题,检修存在的不足主要是空冷塔空气带水和冷箱扒珠光砂时间过长等问题未能解决。
[Abstract]:With the development of petrochemical industry in China, the problem of safe operation and maintenance of petrochemical plant is becoming more and more prominent. Because chemical plants are generally very complex and chemical plants generally involve flammable explosive or toxic and harmful substances so the technical requirements of chemical plant maintenance are very high and difficult. Air separation unit plays a very important role in ethylene glycol plant. The air separation unit is mainly composed of power system and liquid storage system. Therefore, in view of its complexity and importance in ethylene glycol enterprises, it is necessary to study the safety of air separation unit maintenance. In this paper, the maintenance safety of ethylene glycol plant air separation unit in Jilin Petrochemical Company in 2008 was studied in order to provide research material and reference for the maintenance of air separation unit in Jilin Petrochemical Company and other enterprises. First, before the air separation unit is overhauled, the LEC rating method and the expert evaluation method are used to identify the seven dangerous sources in the liquid oxygen pit, liquid oxygen storage tank and the vicinity and the installation area, which may cause fire and suffocation of the device and so on. Secondly, by using matrix method and expert evaluation method, it is clear that the environmental factors of overhaul are mainly from compressor noise and heating line noise. Thirdly, it emphasizes the preparation work that needs to be done before maintenance. Including clear guardian and according to relevant maintenance regulations to complete the maintenance and operation personnel training and so on. Finally, according to the flow of ethylene glycol plant air separation unit in Jilin Petrochemical Co. There are 50 items of maintenance, including 6 items of company control, 5 items of factory control, 39 items of workshop control. After that, the main contents of the maintenance project are explained. After the completion of the overhaul, summarized the results and shortcomings of the maintenance. The results of this overhaul mainly include successfully solving the hidden safety problems of the liquid oxygen discharge system and the problems of the connection rod and the backwater of the crosshead of the oxygen compressor, etc. The problems of air cooling tower with water and long time of cooling box with pearlite are not solved.
【学位授予单位】：上海师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ223.162;TQ116.1

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