乙烯装置Rundown工况的设置及其对制冷系统的影响

乙烯工业 ›› 2022, Vol. 34 ›› Issue (3): 7-12.

乙烯装置Rundown工况的设置及其对制冷系统的影响

刘亚朝

中国石化工程建设有限公司，北京 100101

收稿日期:2022-05-07 修回日期:2022-06-10 出版日期:2022-09-25 发布日期:2022-09-20
作者简介:刘亚朝，女，2020年毕业于北京化工大学化学工程与技术专业，工学博士，现从事乙烯分离装置的设计工作，已发表论文1篇，工程师。

Influence of Rundown Case of Ethylene Plant on Refrigeration System

Liu Yazhao

SINOPEC Engineering Incorporation, Beijing, P.C. 100101

Received:2022-05-07 Revised:2022-06-10 Online:2022-09-25 Published:2022-09-20

摘要/Abstract

摘要：

乙烯装置设计之初通常考虑下游装置停车时产品的外送方案（Rundown），不同Rundown工况对制冷压缩机组的影响显著，制冷压缩机设计和选型的决定工况一般是Rundown工况。文中以某1 000 kt/a乙烯装置为例，分别从压缩机功率、公用工程消耗、能耗、设备投资四方面比较了两种Rundown工况对制冷机系统的影响。设置Rundown工况可使乙烯装置连续稳定运行，但装置能耗和设备投资也会相应增加。规划决策时应进行多方面分析比较。

关键词: 乙烯装置 , Rundown工况 , 乙烯制冷 , 丙烯制冷 , 低温储罐

Abstract:

The product delivery plan for ethylene plant in rundown case is usually considered at the beginning of design. Different rundown cases have diverse and significant impact on the refrigeration system. Rundown case is the critical case for the design and selection of refrigeration compressor. Taking a 1.0 Mt/a ethylene plant as an example, this paper compares the effects of two rundown cases on refrigeration system from the aspects of compressor power, utilities consumption, energy consumption and equipment investment. Setting rundown cases can ensure the continuous and stable operation of ethylene plant, but the energy consumption and equipment investment will increase accordingly. Multi-faceted analysis and comparison should be made during planning and decision-making.

Key words: ethylene plant, rundown case, ethylene refrigeration, propylene refrigeration, low temperature tank

刘亚朝.

乙烯装置Rundown工况的设置及其对制冷系统的影响 [J]. 乙烯工业, 2022, 34(3): 7-12.

Liu Yazhao. Influence of Rundown Case of Ethylene Plant on Refrigeration System[J]. Ethylene Industry, 2022, 34(3): 7-12.

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