MUSE软件在乙烯冷箱板翅式换热器设计中的应用

本文研究的主要是MUSE软件在乙烯冷箱板翅式换热器设计中的应用,并就此展开讨论,详细介绍了设计期间的计算过程和结果,并且联合某种实用性乙烯冷箱板翅式换热器进行案例分析,介绍MUSE软件在此种装置中的实际应用,分析MUSE软件的应用优势。

空分冷箱泄漏的判断及处理

本文扼要介绍了内蒙古化肥厂空分冷箱出现泄漏的判断及处理方法，对于大型空分装置有参考作用。

汞对天然气处理装置中冷箱的影响

天然气处理装置中冷箱(板翅式换热器)的主体材质是铝,天然气中所含汞会对其产生破坏作用。汞对铝的破坏形式有融合、汞合金腐蚀、液态金属脆化等。为尽量避免汞对铝制板翅式换热器的潜在破坏,研究了汞对板翅式换热器的板束体、封头、接管、法兰的不同影响,建议在可能有汞存在的装置中设置脱汞塔,并在设备制造中采取相应措施。

大型乙烯装置裂解气深冷系统设备和管道布置研究

针对目前乙烯规模不断扩大,作为乙烯装置的核心设备———冷箱,其国产化、大型化也会给布置和配管带来一些难题:冷箱的大小与管口方位的布置,其管口的许用荷载,周围平台的设置;与其相关联的设备布置;冷箱的进出口管线根据应力需要进行的调整,管架的支撑,特别是两相流管线的振动;都是在设计过程中要面对和解决的问题。文章以这一系统的配管过程为例,对设备布置和重点难点管道布置及管架设置进行分析。

Refrigerant Distribution Characteristics in Vertical Header of Flat-Tube Heat Exchanger without Internal Protrusion

A heat exchanger that arranges flat tubes horizontally has a vertical header that distributes the refrigerant to each tube. When the heat exchanger works as an evaporator, differences in flow conditions at each branch, such as the ratio and distribution of vapor and liquid, due to the differences in densities and momentums of vapor and liquid in the two-phase flow make equal distribution difficult. This paper describes the distribution characteristics of a four-branch header that has a rectangular cross-section without the internal protrusion of flat tubes in the case of the inflow of the refrigerant R32 from the bottom of the header by using an equipment that can estimate the distribution ratio of the liquid and vapor phase to each branch. This paper also discusses the distribution characteristics on the basis of the flow visualization in the header. The flow visualization shows that a liquid level that contains vapor phase exists in the header and affects the distribution greatly.