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一、前言高压容器是化学工业、石油工业及大型水压机中的关鍵設备;特別是在化学肥料工业中的应用,单从一个年产2000吨合成氨的小型氮肥厂来讲,就需要十个小型的高压容器。几年內全国二千个县每个县建立一个小型氮肥厂,就需要二万个高压容器。故估计在第二个五年計划期內,全国各项工业将需要这种大大小小的高压容器約三万个左右,这个数量是相当龐大的。化学肥料工业的发展,对我国来說是一件极为重要的工作。使用化学肥料不但可使单位面积
I. INTRODUCTION High pressure vessels are the key equipment in the chemical industry, the petroleum industry and large hydraulic presses. Especially in the application of chemical fertilizers industry, from a small nitrogenous fertilizer plant with an annual output of 2,000 tons of synthetic ammonia, ten Small high-pressure container. In a few years, a small-scale nitrogenous fertilizer plant was established in each of the two thousand counties throughout the country, requiring 20,000 high-pressure vessels. Therefore, it is estimated that in the second five-year plan period, about 30,000 high-pressure vessels of all sizes, large and small, will be required by various industries across the country. This figure is quite large. The development of chemical fertilizer industry is an extremely important task for our country. The use of chemical fertilizers not only allows the unit area