大庆乙烯装置稀释蒸汽系统问题分析

乙烯工业 ›› 2022, Vol. 34 ›› Issue (3): 26-30.

大庆乙烯装置稀释蒸汽系统问题分析

善世文

中国石油天然气股份有限公司大庆石化分公司，黑龙江大庆 163318

收稿日期:2021-07-06 修回日期:2022-04-22 出版日期:2022-09-25 发布日期:2022-09-20
作者简介:善世文，男，2011年毕业于东北石油大学化学工艺专业，硕士，现任大庆石化公司化工一厂工艺工程师，工程师。

Analysis of Problems in Dilution Steam System of the Ethylene Plant in Daqing

Shan Shiwen

PetroChina Daqing Petrochemical Company, Heilongjiang, Daqing, P.C.163318

Received:2021-07-06 Revised:2022-04-22 Online:2022-09-25 Published:2022-09-20

摘要/Abstract

摘要：

2019年1月以来，大庆石化330 kt/a乙烯装置稀释蒸汽发生量逐渐降低，导致外引中压蒸汽流量增加。通过对稀释蒸汽系统的全面排查，确定稀释蒸汽发生量降低是稀释蒸汽系统换热器的换热能力降低及炉水回收罐液位控制阀内漏所致。通过对换热器进行高压水清洗及更换内漏阀门，增加了稀释蒸汽发生量，达到了节能减排的目的。

关键词: 稀释蒸汽发生 , 换热器结垢 , 清洗

Abstract:

Since January 2019, the dilution steam generation of the 330 kt/a ethylene plant in Daqing has gradually decreased, resulting in the increased flow of outsourcing medium pressure steam. By comprehensively investigating the dilution steam system, it was confirmed that the decrease of dilution steam generation was caused by the reduced heat exchanger capacity of dilution steam system and the leakage in the liquid level control valve of furnace water recovery tank. By carrying out high pressure water cleaning of the heat exchanger and replacing the leaked valve, the dilution steam generation increased, and energy saving and emission reduction were achieved.

Key words: dilution steam generation, fouling of heat exchanger, cleaning

善世文. 大庆乙烯装置稀释蒸汽系统问题分析[J]. 乙烯工业, 2022, 34(3): 26-30.

Shan Shiwen. Analysis of Problems in Dilution Steam System of the Ethylene Plant in Daqing[J]. Ethylene Industry, 2022, 34(3): 26-30.

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