闪蒸塔

闪蒸塔焊缝缺陷成因分析及安全状况等级评定探讨

Reason analysis on welding seam defect of flash tower and Discussion on safety state grade evaluation

某炼油厂常减压装置闪蒸塔是一台不锈钢复合钢制造的压力容器，在首次定期检验中发现存在较多的超标缺陷。

The flash tower of first set of atmospheric vacuum unit in a certain refinery was a pressure vessel made from stainless steel clad plate . In the first routine inspection more overproofed defects was found .

通过对CO2闪蒸塔工艺操作条件的改进，增加了CO2闪蒸量，提高了全装置的整体应变能力。

By modifying the process conditions of the CO 2 flash column , the CO 2 flashed is increased in volume , and the overall capability to meet contingency of the whole unit is improved .

常减压蒸馏装置加工国外原油时采用初馏塔或闪蒸塔方案的探讨

Discussion on processing schemes of atmospheric and vacuum distillation for imported crudes

主要研究工作如下：第一，以PRO/Ⅱ作为流程模拟工作的工具，应用序贯模块法对三套常减压装置的闪蒸塔、初馏塔、常压塔与减压塔分别进行了稳态模拟。

The whole work is described as follow : First , Pro / II with Provision was harnessed as the process simulation engine . Sequential modular was applied on flash column , prefractionator , atmospheric column and vacuum column for steady state simulation .

以某大型原油处理工程项目为例，对初馏塔加压方案、闪蒸塔常压方案、常压塔加压方案和常压方案进行了对比分析，最终确定常减压蒸馏装置设计方案。

Design schemes for prefractionator pressurizing , flash column atmospheric distillation , atmospheric column pressurizing and atmospheric distillation have been compared and analyzed taking a large scale crude oil process engineering project as example , and the design scheme of atmospheric and vacuum distillation unit has been finally determined .

薄膜闪蒸式脱泡塔的工艺剖析

Technological analysis of film flash type deaerator

本文介绍了甲醇洗工艺中部分气化冷凝、绝热闪蒸器和塔系模拟计算方法和结果。

The modelling and calculation results are reported for partial vaporization condensor , adiabatic flashing column and column system in the methanol washing process .