摘要：本设计为污水处理塔，容器内介质H2S，NH3污水，压力0.45Mpa，设计温度120°C。简要介绍了污水处理塔设备设计的背景，设计的意义，应用现状和应用前景。对给订的工艺参数确定了污水处理塔的设计方案。本塔参照选取GB150-1998《钢制压力容器》和其它相于压力容器设计方面的国家标准。对塔，具体对照做了厚度计算，稳定性校核地震载荷和风载荷等计算在一些相对比较危险的截面。在计算之前，选取适合材料，把工艺参数尺寸作为已知条件，在满足工艺的条件下，从制造，在女装，检修，使用等方面进行机械设计其总体结构和内部附件。经过设计要求完成了基础环，地脚螺栓，塔盘，接管，封头等零部件的选定以及相应零部件连接方式的确定，并对焊接处进行了补强计算。因而设计的板式塔满足了其给定的工艺要求。71219

毕业论文关键词：结构设计；强度校核；标准件选取；补强计算

  The design of the sewage treatment tower

Abstract：The design for the sewage treatment tower, the containers within the medium H2S, NH3 wastewater, pressure is 0.45 Mpa, the design temperature of 120 ° C. This paper briefly introduces the background of the design of sewage treatment tower equipment, the meaning of design, the application of the present situation and the application prospect. The design of the wastewater treatment tower was determined by the process parameters. This tower is based on the national standards of the gb150-1998 steel pressure vessel and other aspects of pressure vessel design. In the case of the tower, the concrete control is calculated by the thickness calculation, the stability check load and the wind load are calculated in some relatively dangerous sections. Before calculation, selecting suitable material, the size of process parameters as a known condition, under the condition of meet the process, from manufacturing, in women's clothing, overhaul, such as used for mechanical design the overall structure and internal attachment. Design requirements after finished the base ring, anchor bolt, tray, takeover, sealing the first selection of components and the corresponding parts determine the way of connection, and butt it has carried on the reinforcement calculation. The design of the plate-type tower satisfies the requirements of the process.

Key words: structural design; strength checking; standard parts selection; reinforcement calculation

目录

1 .引言 1

1.1 污水处理塔设计的背景 1

1.2污水处理塔设计的意义 1

1.3污水处理塔的发展现状 2

1.4污水处理塔的结构整体 2

1.5污水处理塔设计条件 2

2.污水处理塔结构设计 3

2.1塔盘 3

2.1.1塔盘结构 3

2.1.2塔盘形式 3

2.2浮阀 5

2.3降液管 5

2.4溢流堰 6

2.5接管 6

2.6裙座 7

2.7保温层 7

2.8吊柱 8

2.9除沫器 9

3.材料的选取 10

3.1筒体封头的材料选择 10