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1、Fundamental Chemical Process Equipment Course DesignThe Mechanical Design of a Distillation ColumnDesign Date : Dec 25th 2013Major :Chemical Engineering (English Minor),10012Name :Wang HaotongStudent ID : 201048511Tutor :Professor Yu Jianliang, Zhou YihuiContentPreface .31.Introduction.31.Introducti
2、on.3Design Conditions .4Calculation of Column Body and Head Thickness .5Calculation of Column Mass Loads .5Calculation of Wind Load and Wind Bending Moment .7Calculation of Seismic Bending Moment .9Axial Stress Caused by Loads .10Strength and Stability Check of Dangerous Section of Column Body and 3
3、Skirt .11Stress Check in Hydrostatic Pressure Test and Installation .13Design of Base Ring.14Calculation of Anchor Bolt .15Calculation of reinforcement for openings.16Nomenclature .18Reference.19PrefaceChemical industry is a fundamental industry. There are many different types of chemical equipment
4、to meet the various needs of chemical production. The operating conditions of chemical equipment are relatively complicated. But in practice, columns, heat exchangers, pumps and pipes are of the most importance. In the following , we need to design a plate distillation column , using the parameters
5、in Chemical Principle Course Design we have already calculated. The operational diversity makes the selection of appropriate materials for chemical equipment more complicated, which is an important part in designing of chemical equipment. This case is based on the certain process and environment con
6、ditions, such as pressure, wind load, seismic load as well as mass load . And after the basic steps are taken, we need to test the stress for every part of the column, which involves the vessel and skirt. As the distillation column is assumed to be stalled in Dalian, the environmental conditions of
7、Dalian are chosen and according to the working process. Some of the details have benn changed to fit the actual process. 4Distillation is defined as: a process in which a liquid or vapor mixture of two or more substances is separated into its component fractions of desired purity, by the application
8、 and removal of heat. Distillation columns are made up of several components, each of which is used either to transfer heat energy or enhance material transfer 1-2. The acceptance of present computer-aided design (CAD) systems is closely connected with their abilities to support problem solving in t
9、he fields of computer-aided design and process planning. Today, comprehensive and general solutions still do not exist and are unlikely to be available in the near future. So, besides geometrical capacity, one of the most important aspects to be considered is probably the quality of the human-comput
10、er interface. Fulfilling the requirements of this interface is one of the most problematic tasks in planning future CAD systems. These problems can be solved only by discussing and trying out new and probably unusual methods. In this vein, a system concept will be presented that allows solid model d
11、esign by sketched views and related dimensions on a tablet. The solids will be created automatically using two-dimensional to three-dimensional reconstruction techniques. The introduced system concepts are partially realized in a working system. Diverse components such as dimensioning are still unde
12、r development at present. Generation of qualitative described solids by sketch input is already possible today 3-6.Continuous columns process a continuous feed stream. No interruptions occur unless there is a problem with the column or surrounding process units. They are capable of handling high throughputs. A continuous column operates under steady conditions where the composition at a given location does not change over time. The composition only depends upon the position in the column and so additional product steams can be easily tapped at dif
