燃料与化工 ›› 2020, Vol. 51 ›› Issue (2): 21-24.

• 煤焦技术 • 上一篇    下一篇

焦炉上升管余热回收汽水系统水力工况分析

王鹏  金基浩  李桦  任众  李旭东   

  1. 中冶焦耐(大连)工程技术有限公司, 大连116085
  • 出版日期:2020-03-23 发布日期:2020-03-23

Analysis for hydro working conditions of steam-water system in waste heat recovery from ascension pipe

Wang Peng  Jin Jihao  Li Hua  Ren Zhong  Li Xudong   

  1. ACRE Coking & Refractory Engineering Consulting Corporation (Dalian),MCC,Dalian 116085,China
  • Online:2020-03-23 Published:2020-03-23

摘要:

结合工程实例,对焦炉上升管余热回收汽水系统的水力工况进行分析。该工程采用5个上升管为1组的汽化系统分组方法,保证进水、产汽的均衡性;上升管热力系统采用“一级进水+二级出汽”复杂回路布置,保持该系统的水力稳定性;系统管道设计采用“大管径、小流速”,减少外线布置造成的沿程阻力损失。该工程产汽率约为131 kg/t焦,可更好地提高焦化厂能源利用率。

关键词:

Abstract: The hydro working conditions of steam-water system in waste heat recovery from ascension pipe is analyzed based on a project example.A block method of 5 ascension pipes as one group of vaporization system is adopted to ensure a balance between water feeding and steam generation.The thermal system of the ascension pipe is arranged in piping of “water feeding from stage 1+steam generating from stage 2” to keep hydro stability of the steam-water system.The system piping is designed as “big diameter and low flow rate” to minimize resistance loss due to long arrangement of external lines.In this project,the steam yield is about 131 kg/t·coke, which can improve the resources utilization of the coking plant.

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