液态高沸点易挥发氟化物新型引流分装及取样方法研究

Study on Novel Drainage, Sub-Packaging, and Sampling Methods for Liquid High-Boiling-Point Volatile Fluorides

摘要: 液态高沸点易挥发氟化物(后文简称氟化物)的引流分装过程是生产运行单位重点管控风险点。针对氟化物引流分装及取样方法开展研究，获得了“分段引流”方法。研究结论为：氟化物因其特有物理性质，在面临长真空管道引流时会因压力骤降而使液态相态转变为气态相态进而出现气化现象；对于引流分装及取样过程需控制压力变化使得氟化物相态稳定避免出现安全隐患；“分段引流”方法可以避免在引流分装及取样过程出现氟化物气化现象。本研究通过对氟化物引流分装和取样方法研究，提高了相应生产单位厂房安全性，保证重点管控风险点的平稳运行。

Abstract: The liquefaction and homogenization workshop is a critical risk control point for production and operation units. This study focuses on the drainage, subdivision, and sampling methods in the liquefaction and homogenization workshop, leading to the development of a novel “segmented drainage” method. The research findings are as follows: due to the unique physical properties of fluorides, a sudden pressure drop during drainage through long vacuum pipelines can cause a phase transition from liquid to gas, resulting in vaporization. To ensure safety, it is essential to control pressure changes during the drainage, subdivision, and sampling processes to maintain the stable phase state of fluorides and avoid potential hazards. The novel “segmented drainage” method effectively prevents fluoride vaporization during these processes. By investigating drainage, subdivision, and sampling methods in the liquefaction and homogenization workshop, this study enhances the safety of the workshop and ensures the stable operation of this critical risk control point.