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火炬系统用来处理石油化工装置中无法收集和再加工的可燃气体或蒸汽,是保证安全生产、减少环境污染的重要措施。火炬管网将装置排放的火炬气安全输送到火炬,是火炬系统的重要组成部分。MTO(甲醇制烯烃)装置以甲醇为原料生产聚合级乙烯和丙烯,其火炬排放量较大,因此,合理设计火炬系统和计算火炬管网非常重要。近年来,国外模拟软件已成为工程设计的重要辅助工具,在国际上使用最广泛的是AspenTech公司开发的FlareNet软件,用于火炬和泄放网络的水力学设计和分析。根据约束条件,对国内某300kt/a MTO项目计算结果进行分析和优化。通过与已建成的同等能力的MTO装置的火炬总管尺寸和安全阀型式进行比较,证明采用该软件,较传统的手工计算方法更快捷和有效,可以准确进行MTO装置管网的设计和安全阀选型。
Torch system is used to deal with the petrochemical plant can not be collected and re-processed combustible gas or steam is to ensure safe production and reduce environmental pollution is an important measure. Torch pipe network to the safety of the torch gas emissions from the device delivered to the torch, the torch system is an important part. MTO (Methanol-to-Olefin) plant uses methanol as raw material to produce polymerized ethylene and propylene with large flare emissions. Therefore, it is very important to design the flare system and calculate the flare pipe network reasonably. In recent years, foreign simulation software has become an important aids in engineering design. The most widely used in the world is FlareNet software developed by AspenTech for hydraulics design and analysis of flare and discharge networks. According to the constraints, the calculation results of a 300kt / a MTO project in China are analyzed and optimized. Comparing the flare manifold size and safety valve versions of MTO devices that have been built to the same level has proven that the software is faster and more efficient than traditional manual calculation methods and allows accurate design of MTO plant network and safety valve selection type.