裂解气压缩机注水系统优化

乙烯工业 ›› 2021, Vol. 33 ›› Issue (2): 56-58.

裂解气压缩机注水系统优化

游笑辉，董亚龙，王晨宇，王俊杰，代川

中国石油天然气股份有限公司独山子石化分公司乙烯厂，新疆独山子 833699

收稿日期:2020-08-17 修回日期:2020-07-20 出版日期:2021-06-25 发布日期:2021-06-18
作者简介:游笑辉，男，2013年毕业于四川大学过程装备与控制工程专业，工学学士，主要从事压缩装置设备管理维护工作，工程师。

Optimization of Water Injection System for Cracking Gas Compressor

You Xiaohui, Dong Yalong, Wang Chenyu, Wang Junjie, Dai Chuan

PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833699

Received:2020-08-17 Revised:2020-07-20 Online:2021-06-25 Published:2021-06-18

摘要/Abstract

摘要：

由于裂解气组分较复杂包含烯烃类、高分子烯烃、硫化物等，其中重组分尤其是丁二烯等在高温下聚合反应会急剧加快，极易发生聚合反应，其生成物附着在压缩机内部，阻塞叶轮、隔板、机壳流道和密封件，使得气体流动阻力增加，流量减少，严重影响裂解气压缩机机械性能和效率，缩短运行周期，随着机组运行附着在压缩机内部的结焦物在离心力作用下会脱落，破坏转子动平衡，造成机组振动增大，甚至引发机组联锁。因此保证注水系统连续稳定运行，对降低压缩机出口温度、减缓结焦速率、延长机组运行周期起着重要作用。

关键词: 裂解气压缩机 , 结焦 , 注水 , 优化

Abstract:

Because cracking gas has complex components and contains olefins, high molecular olefins and sulfides, the heavy components, especially butadiene, will rapidly accelerate the polymerization reaction at high temperature, and the polymerization reaction is very easy to occur, seriously affecting the mechanical performance and efficiency of cracking gas compressor and shortening the operation cycle. In order to reduce the high temperature scaling of compressor impeller, water injection is needed to reduce the temperature. Metering pump, which was designed for water injection, has many defects. After optimization, boiler feed water pump is used to supply water, overcoming the defects of metering pump. Ensuring the continuous and stable operation of water injection system is critical for reducing the outlet temperature of compressor, slowing down the coking rate and prolonging the operation cycle of compressor unit.

Key words: , cracking gas compressor, coking, water injection, optimization

游笑辉, 董亚龙, 王晨宇, 王俊杰, 代川.

裂解气压缩机注水系统优化 [J]. 乙烯工业, 2021, 33(2): 56-58.

You Xiaohui, Dong Yalong, Wang Chenyu, Wang Junjie, Dai Chuan. Optimization of Water Injection System for Cracking Gas Compressor[J]. Ethylene Industry, 2021, 33(2): 56-58.

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