油库油罐区管线改造管线方案.doc

We will continue to improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication zero resistance. To constantly perfect ERP, and BFS+, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS+, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of zero risk. To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction油库罐区内管线工程改造方案因油库号汽油、号柴油、工业柴油管线改造工程施工需要，需对现有在罐区内管线进行切割、焊接等工序，为确保油库施工质量，特制定管线改造方案如下：一、主要改造的管线及区域将101、102号罐和103、104号罐的发车管线合并，中间增加1个DN150的闸阀，闸阀关闭时实现两种油品各自的发车功能，闸阀开通时实现各个罐的倒罐，将103、104号罐现有的汽油发车管线改为90号汽油（）收油管线，需在旧发车管线上开孔驳接收油支管2处，原有的收油管线作为0号柴油收油管线，这样罐区不增加新管线即可实现0号柴油和90号汽油（）的独立收油和发车功能。自108号罐经中转泵房至码头新增DN150收油管线，并和108、109、110号罐相连通。二、各管线改造流程1.施工前的工作准备（一）确认管道是否达到动火条件。1）管道内部用化学进行清洗。2）清洗完毕后，须用测爆仪进行测试达到动火条件。（二）管道周围安全防火、防爆措施1、向油库申请动火作业许可证。2、将周围10米内供输油管道，全部用石棉布遮盖。3、在动火地点设置多个干粉灭火器具。4、氧、乙炔气瓶摆放间距达到规范要求。5、进入施工现场，必须戴好安全帽，登高作业必须系好安全带。6、现场动火必须有看护人。一管道安装工艺流程：安装准备预制加工干管安装支管安装管道试压管道冲洗管道防腐（保温）二. 管道主安装的一般要求1材料到货时，须具备合格证并检测其圆度，及其外观是否合要求；2管子、管件、阀门等在安装前必须按设计要求核对无误；3所有阀门安装前必须按照规定进行强度及严密性试验；4旧管道拆除后，管线可以冲水清洗。5新管线预制完好后先进行试压，试验压力为2.4MPA，试完压逐条对新旧管线进行连接。6动火前要分析旧管内的介质，合格后方可动火，所以施工时尤其做到安全动火，安全用电，各项安全措施应做到周密，确保不发生任何事故。三. 管道的预制加工。管道在预制前根据图纸和现场实测尺寸，争取其深度达70%（焊口计），预制下料应在固定口直管段留出安装调整量100毫米，采用氩电联焊，提高预制件一次合格率，管道上仪表管嘴孔定位开孔。四. 管道、管件组的焊接。1、焊接工艺。为保证焊接质量，采用焊条电弧焊的焊接方法；焊接资格：WS/D1-19或相应资格。2、焊接技术要求及注意事项。焊工持有相应的有效期内的合格证。在焊接过程中，应做好防风防雨措施。使用焊条电弧填充时，用磨光机做好层间清渣，同时各层间的焊道头要错开。焊完后，焊工清理焊渣等，并对焊缝进行自检，同时在焊缝附近管线号、焊口编号旁边应打上自己的焊工钢印号。焊条使用前应按质量证明书的规定进行烘干，并在施工过程中使用焊条保温筒，注意保持干燥，做到随用随取. 3、焊接外观检验要求。焊缝外观应成型良好，宽度以每边盖过坡口边2MM为宜。角焊缝的焊脚高度应符合设计规定，外形应平缓过渡。焊接接头表面不允许有裂纹、未熔合，气孔，渣，飞存在。管道焊缝咬边深度不应大于0.5MM，连续咬边长度不应大于100MM，且焊缝两侧咬边总长不在于该焊全长的10%.焊缝表面不得低于管道表面。焊缝余高不大于，且不大于3MM。其中B1为焊接组对后坡口的最大宽度。焊接头错边不应大于壁厚的10%，且不大于1MM。五、管道的安装1管道安装应遵循先地下后地上，先大后小，先管带后设备的原则。管道的安装施工，按照立管水平横管支管的施工顺序。2管道安装前，必须清除管道内污垢和杂物；安装中断或完毕的敞口处应临时封闭。3管道连接时，不得采用强力对口，以免造成内应力和管变形。4有特殊流向的阀门必须保证阀门所示流向和介质流向一致。管道安装时，要严格按照施工图纸要求的安装坡度进行安装； 5法兰连接应检查其密封面，不得有缺陷，保持接合面的平行度和同心度0.6毫米，保证螺栓自由穿入，安装双头螺栓两头对称均匀，外露螺纹大致相同，且不在于二位螺距。 6新旧管碰口处焊接因不能参加试压，按100%比例进行X射线探伤或磁粉探伤。7管路阀门的型号、规格、数量、安装位置须符合图纸要求,要求做到连接牢固、紧密,阀门启闭灵活，朝向合理。阀门耐压强度和严密性试验必须符合设计和施工规范要求。8管道及附件安装完毕后,如实填写相试验资料、质量评定表作为竣工资料保存。6 层的漆膜应均匀一致，天面光亮平，不能存在皱纹、泪迹、孔隙等缺陷。六、法兰接口1在安装法兰时首先要注意平眼（螺栓孔平行），无论是几个眼的法兰，安装在水平管道上的最上面的两个眼必须呈水平状；安装在垂直管道上靠近墙的两个眼的连线必须与墙平行；其次要注意法兰对平找正，即两片法兰的对接面要互相平行，两片法兰的每个孔眼要对正。若不对平找正，出现盘面倾斜，不但影响外形美观，而且会使垫片受力不均造成泄漏。2石棉橡胶垫在使用前应放到机油中浸泡，并涂以铅油或铅粉，以增加严密性。安装时垫片准加两层，位置不得倾斜。垫片表面不得有沟纹、断裂等缺陷。 3法兰密封面要清理干净，不能有任可杂物。如果是旧法兰，要清理出金属本色。 4法兰使用的螺栓要符合设计规定，拧紧螺栓时要对称成十字交叉式进行。每个螺母要分23次拧紧，紧固好的螺栓外露丝扣应为2-3扣。用于高温管道时，螺栓要涂上铅粉。 5管先点焊在这片法兰上，再把法兰松开取下焊接，冷却后再与阀门连接好，最后焊接与配管相接的另一管段。6配管法兰应与阀门的法兰相符，阀门安装手轮方向应便于操作，标高一致，配管排列整齐。七、管道防腐。1管道防腐保温按照石油化工设备和管道涂料防腐蚀技术规范要求执行。2管道涂一道红丹底漆，后涂两道红色（绿色）醇酸磁漆；管架防腐一道红锈漆，面漆天蓝色二道调和漆。3油漆涂装施工时必须充分搅均匀，当油漆有沉淀物时还要采限过滤措施，支除沉淀物，同时下雨及相对温度大于85%时必须停工。4各层的漆膜应均匀一致，天面光亮平，不能存在皱纹、泪迹、孔隙等缺陷。八、管道的试压和恢复。5、施工工期的安排：施工工期为？天，计划在2009年12月9日开始，12月？日完工；6、交通疏导措施；7、质量安全保证； 2009年11月23日利用设在基坑边的固定泵输送砼到施工面，人工摊铺，平板振捣器振捣密实，用刮杠沿模板顶将砼刮平，并用木抹搓平压实，确保砼密实和表面平整。砼浇注时埋设支立模板及钢筋支架所需预埋铁件play levels cadres in enterprise development in the of backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. To conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on Decem