问题 问答题 案例分析题

某钢厂炼钢技改项目内容包括钢结构、工艺设备、工业管道、电气安装等,为节能减排,新增氧气制取、煤气回收和余热发电配套设施。炼钢车间起重机梁轨顶标高27.8m,为多跨单层全钢结构(塔楼部分多层)。炼钢工艺采用顶底复合吹炼,转炉吹氧由球罐氧气干管(D426×9,P=2.5MP)经加料跨屋面输送至氧枪阀门室。

该项目由具有承包资质的A公司施工总承包。在分包单位通过资格预审后,经业主同意,A公司将氧气站、,煤气站和余热发电站机电安装工程分包给具有相应专业资格和技术资格的安装单位。

A公司项目部进场后,根据图纸、合同、施工组织设计大纲、装备技术水平集现场施工条件进行施工组织总设计编制,塔楼钢结构和工艺设备采用3000吨.m塔吊主吊方案经过批准通过。项目实施过程中,项目部在安全和质量管理方面采取措施如下:

措施1:针对工程特点,塔楼施工现场存在危险源较多,项目部仅对临时用电触电危险、构件加工机械伤害危险、交叉作业物体打击危险以及压力试验、冲洗、试运转等危险源进行辨识和评价,经公司审定,补充完善后,制定了相应安全措施和应急预案,健全现场安全管理体系。

措施2:针对氧气管道管口错边量超标,内壁存在有只、锈蚀、铁屑等原因易引起燃烧爆炸事故,项目部编制施工方案时,制订了包括材料检验、管道试验等关键工序为内容的施工工艺流程,经批准后严格执行,

措施3:氧气站球罐的球壳板和零部件进场后,A公司项目部及时组织检查和验收,确保分包单位按计划现场组焊。

措施2,氧气管道施工还应包括哪几道关键工序?

答案

参考答案:

氧气管道施工还应包括的关键工作有:安装施工测量放线、沟槽开挖及管沟砌筑、管道敷设及安装、管理与设备连接、吹洗、仪表安装、试压、防腐与保温、调试与试运行

阅读理解

Come to Austria (奥地利)

Soll is a village in the mountains western Austria. And the Post Hotel is clean and not expensive. It is opened by a local family. From the hotel you can see the whole village, the forests and the mountains. Temperatures in summer are usually 20 °Cto 25 °Cin the daytime, but much cooler by evening.

Enjoy Thailand!

When you visit Bangkok in Thailand, don’t miss the early morning river boat trip to the Floating just outside the city. There you will find many kinds of fruits and vegetables. And you can pay for them when you sit in your boat. Don’t forget your hat: the sun can be strong and it may be as hot as 40℃ at noon.

Visit Hawaii!

Maybe the most beautiful place in Hawaii is Kauai. You can visit its long, sandy beaches in the south and west of the island, and mountains and forests in the north, but don’t be surprised if it rains in the centre of the island. Daytime temperatures there are usually around 24°C to 26°C by the sea, and only a little cooler by late evening.

小题1:If you go to Bangkok, you can ______.

A.climb mountains

B.enjoy the scenery to the forests

C.live in the Post Hotel

D.buy fruits while sitting in your boat小题2:______ is one way to prevent the strong sunshine in Bangkok.

A.Going to the sandy beaches

B.Wearing a hat

C.Climbing up the mountains

D.Staying in the forests小题3:According to (根据) the advertisements, we know that ______.

A.the hottest travel place is Soll

B.maybe it often rains in the centre of Kauai

C.the Floating Market is in the middle of Bangkok

D.the Post Hotel in Austria is clean but the price is high

单项选择题