一、前言在1984年年初,由于我厂当时两氨不平衡,急需在合成工段安装液氨液位计。从我厂现有的材料出发,在全厂有关同志的大力支持下,我终于试制成功了两台高压沉筒式液氨液位计,安装在合成工段的氨分离器和氨冷交换器上。经过在试验室和现场的反复调试及三年多来的正常运行,满足了工艺要求。 I. Preface In early 1984, due to the imbalance between the two amines in our factory, it was urgent to install the liquid ammonia level meter in the synthesis section. Starting from the existing materials in our factory, with the strong support of the comrades in the whole plant, I finally succeeded in making two high-pressured sinker type liquid ammonia level gauges, which were installed on the ammonia separator and the ammonia-heat exchanger in the synthesis section . After repeated testing in the laboratory and field and more than three years of normal operation, to meet the process requirements.