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在卧式压力容器型号和基本参数选择中 ,对设备质量进行比较是必不可少的。为了用较短的时间给出比较精确的预测 ,在综合考虑壳体、封头、鞍座和内构件等结构部件的质量 ,以及计算厚度、钢板厚度负偏差、腐蚀裕量和厚度圆整度等设计环节的基础上 ,提出了设备质量预估方法 ,给出了完整的计算公式 ,然后以固定管板式换热器为例 ,重点进行了内构件分析 ,并用实际数据加以计算说明 ,最后根据总质量最小的原则 ,确定最佳的设备基本尺寸
In the horizontal pressure vessel model and the choice of basic parameters, the quality of the equipment to be compared is essential. In order to give a relatively accurate prediction in a shorter time, considering the quality of the structural components such as the shell, the head, the saddle and the inner component, and calculating the thickness, the negative deviation of the thickness of the steel plate, the corrosion margin and the thickness roundness Based on the design steps, the method of equipment quality prediction is put forward and a complete calculation formula is given. Taking the fixed tube-plate heat exchanger as an example, the analysis of the internal components is focused and calculated with the actual data. Finally, The principle of the minimum total mass, to determine the best basic equipment size