液氯汽化吹扫方案

videoconference, Secretary of the provincial Committee of Xia Baolong stressed: this year is the five water treatment 357 timetables for three years to resolve outstanding issues, obviously worked, victory of the year. The Countys departments at all levels must firmly establish the guanghui is gold and silver green development concept, convinced that Castle is not relaxed, always maintaining strategic ability and strong determination to improve the environment, consistently playing well five water treatment of winning the war, ever-higher levels of comprehensive well-off society was built. (A) lay the sewage uphill battle. This year we will river water quality improved at the county level, up to five this basic objective grasp of pollution control that focus, with the focus on three things: a good job, clear rivers reaching the County created. Organization look back special inspection, the County garbage River, black and odorous River is Dragnet investigation, timely rectification of problems found in place firmly to prevent river pollution rebound. In accordance with the one-stop strategy, improving the inferior five water quality monitoring stations work this year to ensure the Elimination of 1 provincial control, five water quality section 3 municipalities controlled deterioration, ensure the creation this year of clear rivers standards. Second, pay special attention to pollution-cutting construction of nanotubes. Intercepting nanotubes are the basis of pollution of water source engineering, engineering, matter of success or failure of water management. Urban sewage treatment, to improve effluent from sewage treatment rate, running accuracy, compliance requirement, speed up the towns support network construction, is focusing on nanotubes home last meters question. Domestic sewage treatment in rural areas, this year is the final year of the three-year action, determination to fight and the momentum around, ending the battle on which fully to ensure the realization of all County 648 formed village coverage. Also, be sure to attach importance to focus on rural domestic wastewater treatment facility operation and management, ensure that wastewater treatment facility up and running, role play, avoid the Sun problem. Third, pay special attention to the River Lake pond desilting operation. Provinces now have focused on pollution control of water go to dig up mud, as the deepening water of this years plays. Next, to jump-start an investigation line touches work, implementation plan according to the priorities and the programme of work, in accordance with the one river one policy requires detailed cleaning, dredging plan, planning ahead of time cleaning out mud way out, according to local conditions to do sludge, promote scientific resource utilization of silt and mud. (B) the heavy regulation of heavily polluting industries. Pollution of water must grab the source, wastewater is primarily the source of backward production capacity, increase the intensity of宜昌南玻硅材料有限公司液氯汽化工序等设备及管道安装工程一、 概述：1.管道试压是检验管道安装质量的重要手段，是管道安装工作中的一个重要环节。通过试压，可以及早发现焊缝、管子、管件、阀门和其他一切连接部位的缺陷，使其得以及时修补，为下步试车打下良好的基础。2.通过吹扫，将工艺管道内的铁锈、可能存在的杂物全部清除掉，以确保试车时，设备内部无杂物，运转良好。 3.本工程共划分20个试压系统，其中易燃、易爆、有毒系统9个，希望各参战试压人员以科学的态度、求实的精神，精心操作，确保试压工作安全稳妥的完成。4.这次管道水压试验合格后，迅速将管内的水用仪表空气吹扫干净，特别注意支管及倒淋、仪表一次部件等，必须将水放净。6. 本方案仅适用于宜昌南玻多晶硅工程氢化还原车间工艺管道中的管道的试压与吹扫。7 .编制依据1）. 工艺管道布置图及管道空视图2）. 现场施工条件3）.工业金属管道工程施工及验收规范 GB50235-974）. 工程总体计划安排二、系统的建立及分工设想1.按系统进行试压，不同的系统不得串在一起试压，尽量减小系统，以缩短试压介质在管道内停留的时间。2.本着先易后难，先公用系统，再物料系统，即先进行仪表空气，氮气，低压蒸汽，再循环水等。3.试压分工的原则：3.1谁安装的管道，谁负责管道的试压。3.2 管道试压时与设备的第一道法兰的盲板由管道施工单位负责。三、 原则性要求1.将不能参与试压的仪表部件，如调节阀，转子统量计，安全阀，止回阀，孔板，防爆片应拆除或加以隔离。2.所有转动设备，静止设备不得参与管道系统的强度试验和吹扫，应采用插入式盲板进行隔离，但压力容器可参与系统的气密性试验。3.蒸汽系统利用蒸汽进行冲洗，水系统用水试压，其他系统原则全部采用无油空气进行吹扫。4.所有转动设备入口管线吹扫一定要严格把关，将设备口用盲板或其它物体封堵好，尤其压缩机入口管线。5.管道系统内的杂物严禁吹入设备。四、 试压前的检查准备1.以管道平面布置图为依据，参照空视图是否正确，各仪表接头是否齐全、正确。2.检查管子、管件、阀门方向是否正确。3.检查支吊架是否安装完备。4.拆除不能参与试压的仪表部件及设备，需连通的管道做临时短节连接。5.焊缝无损检验是否全部结束。6.检查测压点，排放点是否已安装完毕。7.检查加置盲板的部位是否已做好明显标记，并在试压流程图中标注。五、 系统压力试验1.首先试验仪表空气、工业空气管线，以设计给定的压力为试验压力，通气后以目测气体无泄漏为合格。2.循环水、冷冻水等水系统管线以水进行气压试验，试验压力为设计压力的1.5倍。3.其余管线系统以无油空气进行压力试验。4. 试压所用水必须是洁净的清水，对于不锈钢管道的试压，其水中氯离子含量不得超过25PPm。5. 试压所用压力表必须经过调校，精度不低于1.5 级，表的满刻度值为最大被测压力的1.52倍。6. 管道水压试验压力应为设计压力的1.5倍，且不得低于0.4MPa。7. 当管道与设备作为一个系统进行试验时，管道的试验压力等于或小于设备的试验压力时，应按管道的试验压力进行试验；当管道的试验压力大于设备的试验压力时，且设备的试验压力不低于管道设计压力的1.15倍，经建设单位同意，可按设备的试验压力进行试验。8. 对于位差较大的管道，应将试验介质的静压计入试验压力中。9. 液压试验应缓慢升压，待达到试验压力后，稳压10min，再将试验压力降至设计压力，停压30min，以压力不降、无渗漏为合格。10. 管道气压的试验压力应为设计压力的1.15倍，试验时，应逐步缓慢增加压力，当压力升至试验压力的50%时，如未发现异状或泄露，继续按试验压力的10%逐级升压，每级稳压3min，直至试验压力。稳压10min，再将压力降至设计压力，停压时间应根据查漏工作需要而定。以发泡剂检验不泄露为合格。11. 试验结束后，应对照试验时的编号及记录，及时拆除临时盲板，排尽积液。排液时应防止形成负压，并不得随地排放。12. 压力读数应以最高点压力显示为准。13. 管道系统试验压力详见附表三六、系统泄漏性试验输送有毒流体、可燃流体的管道必须进行泄露性试验，泄露性试验应在压力试验合格后进行，试验介质宜采用空气。泄露性试验压力应为设计压力，泄露性试验应重点检验阀门填料函、法兰或螺纹连接处、放空阀、排气阀等，以发泡剂检验不泄露为合格。管道系统试验及合格标准见下表：试验项目介质试验压力合格标准备注液体强度无压P=0有压P0水 充水水 1.5P停压十分钟，以无泄露，目测无变形为合格液体严密度无压P=0有压P0水 充水水 1.0P全面检查、无泄露为合格满足30分钟不掉压气体强度1.15P停压十分钟，以无泄露，目测无变形为合格气体严密性试验空气 1.0P涂肥皂水检查，无泄露，稳压30分不掉压泄露性试验空气 1.0P且大于0.02 Mpa试压时间为24小时，不泄露七、系统吹扫原则上采用空气吹扫的方式，蒸汽管道采用蒸汽吹扫。 1、DN50mm管道采用直接吹扫， DN50mm采用爆破吹扫，吹扫气体采用无油压缩空气或氮气。2、爆破吹扫方法：即把1.52 mm厚的石棉板，把在爆破管口端，待压力升至0.30.5 Mpa后，石棉板破裂，系统脏污迅速排出。3、爆破吹扫须分段进行，每段爆破35次，以爆破气流无尘土及颗粒物为合格。4、直接吹扫时其气流速度20m/s，吹扫时敲打管子，间断吹扫时间为58分钟，约35次后，在排气口用白布检查5分钟内无铁锈，尘土水及其他杂物即为合格。八、雨季季施工注意事项1、及时掌握天气情况，在天气不恶略的条件下方能对管线进行试压。九、安全技术措施1、应组织由施工，质量安全等人员组成的试压领导小组，负责试压方案措施的落实、检查、实施。2、试压排放口应选择在安全的地方，避开道路、建筑、电源、电缆等，并做出明显标志禁止闲杂人员入内。3、气压试验排放口不宜水平排放，设置安全警戒线，做好明显标志。4、试验应避免带压处理，泄压后方准处理。5、参加试压人员应认真学习、遵守试压方案，熟悉试压流程。6、登高作业应系安全带，脚穿防滑鞋。7、加强现场的通信联络，选用步话机进行试压吹除联络。8、试压吹除后，应及时拆除盲板。9、未尽事项严格执行石油化工施工安全规程SH3505-1999十、试压系统流程图 由于管廊的系统交多，系统复杂，待试压时将流程上报。附表一 ： 试压吹扫施工机具及措施材料一览表序号名 称单 位数 量1齿轮泵台52电动试压泵台53紫铜管101米604毛刷1个605肥皂块206压力表25Mpa块37压力表10Mpa块3压力表6MPa块4压力表4MPa块6压力表2.5MPa块68石棉板：2.5mmKg509钢板：6mmm210钢板：10mmm210钢板：12mmm210钢板：16mmm210钢板：20mmm21010胶带1米15011无缝管1米11012阀门1800#个1313蒸汽胶皮管 1米50附表二： 试压用插入式盲板最小厚度 单位mm试验压力法 兰 公 称 直 径 MPa405065801001251502002503003504004500.4666668101212121212180.61.018161.62020222.5162428323.21012142020254.583434386.481834408.010121638 附表三： 氢化还原工序各主要系统序号系统介质1A空气2CWR 循环水回水3CWS循环水上水4DR排污液5H氢气6HW直接热水7LLC蒸汽冷凝液8LLS0.3MPaG蒸汽9LS0.5MPaG蒸汽10N0.3MPaG氮气11NH0.7MPaG氮气12PA压缩空气13RWR12冷冻回水14RWS7冷冻上水15SC0.5MPaG蒸汽冷凝液16SW高纯水17TCS三氯氢硅18TET四氯化硅19VG尾气/放空气20VGM汽气混合物附表四：劳动力资源职 责人 数工 种人 数队 长2名调 度1名技术员2名钳 工4名检查员1名管 工2名安全员1名材料员1名其 他6名合 计20名附表五：施工组织机构项目经理施工队施工作业班组技术组质量安全材料 目 录一、概述1二、系统的建立及分工设想1三、原则性要求1四、试压前的检查准备2五、系统压力试验2六、系统泄露性试验3七、系统吹扫3八、雨季季施工注意事项4九、安全技术措施4十、试压系统流程图5附表一 ：5附表二：6附表三：7附表四：8附表五：8宜昌南玻1500吨/年多晶硅工程液氯汽化工序工艺管道试压吹扫方案编制：审核批准：中国化学工程第十三建设公司南玻项目部2008-11-4为了促进本公司各项经营活动由事后管理向事前管理方式的转变，强化生产经营全过程控制，提高资金使用的计划性，特制定本管理办法，以增加公司资金运行的透明度，降低各项成本，使有限的资金发挥最大的效能。treatment of heavily polluting industries. According to municipal, and municipal government deployment of seven big heavy pollution industry regulation three years action plans, requirements to December 2016 end of Qian, all included shut stopped eliminated of enterprise all shut stopped eliminated in place; June 30, 2017 Qian, all included place regulation upgrade and agglomeration restructuring of enterprise by unified standard regulation in place, late not standard of enterprise are implementation discontinued; June 30, 2018 Qian, all intends Park production of enterprise relocation Park in place, late not Park of are discontinued. In the process of renovation, will focus on four aspects: to firmly close the high energy consumption and heavy pollution, hopeless enterprise governance and production lines, eliminated a number of yearly emission intensity, low value-added products of backward production capacity. Second, we must strictly enforce the space, total project Trinity environment access system, promoting industry access and environmental conditions of access of enterprises to the Park, industrial park, in principle, no longer the class on the new project. Thirdly, promoting replacement and reconstruction of heavily polluting industries, mergers and reorganizations, guide enterprises to energy conservation, recycling and low-carbon and clean production, and improve the level of green development. Four to establish a long-term supervision mechanism, increase the intensity of special inspections, investigate and punish the rectification is not in place, normal business of running anti-pollution installations do not. (Iii) linkage to promote flood control water, drainage, water supply, improving water saving. Speed up cross Yang support river dike reinforcement, and along Pu seawall except insurance reinforcement, and Lake Qian sluice, and BA Cao sluice, and cloud cover reservoir, focus flood control drainage engineering construction, vigorously implementation strong library solid di spread row engineering, increase