新疆石油天然气 ›› 2024, Vol. 20 ›› Issue (1): 88-94.DOI: 10.12388/j.issn.1673-2677.2024.01.011

• 新能源 • 上一篇    

呼图壁储气库采气系统节能降耗技术

  

  1. 1.中国石油新疆油田分公司储气库有限公司,新疆昌吉 831200; 2.西安交通大学动力工程多相流国家重点实验室,陕西西安 710049。
  • 出版日期:2024-03-06 发布日期:2024-03-06
  • 通讯作者: 白博峰(1971-),1999年毕业于西安交通大学动力工程及工程热物理专业,博士,教授,目前从事能源及动力系统多相流与换热研究。(Tel)029-82665316(E-mail)bfbai@mail.xjtu.edu.cn
  • 作者简介:马增辉(1974-),1998年毕业于西安石油大学石油工程专业,硕士,高级工程师,目前从事储气库工艺设备和节能技术管理工作。(Tel)0990-8862334(E-mail)mzenghui@petrochina.com.cn
  • 基金资助:

    新疆石油管理局有限公司科研项目“呼图壁储气库注采系统节能降耗研究”(HTBCQK-2020-176)

Energy Conservation and Consumption Reduction Technology of Gas Extraction System in Hutubi Gas Storage

  1. 1.Gas Storage Co.,Ltd.,PetroChina Xinjiang Oilfield Company,Changji 831200,Xinjiang,China; 2. State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China.
  • Online:2024-03-06 Published:2024-03-06

摘要:

针对呼图壁储气库采气系统部分运行参数偏离最优值、节能效率较低的现状,采用夹点分析和分析方法对采气系统进行能效分析,基于HYSYS软件模拟研究了关键参数之间的相互影响关系,提出了节能降耗方案。方案主要在气气换热器选型、乙二醇富液进塔温度优化、再生塔回流比优化以及相变炉系统节能降耗优化四个方面开展。建立了进站压力及J-T阀背压与气气换热器理论KA值之间的计算模型,实现了气气换热器优化选型;提出了乙二醇富液最优进塔温度67 ℃,确定了再生塔回流比为0.06,运行再生塔顶冷凝器,可使乙二醇消耗量减小84.6%;提出了利用再生塔排空气体余热预热外输气的方案,可使系统能耗降低9.0%。以上优化方案在较少地改动系统情况下有效降低了采气系统总能耗。

关键词:

储气库, 节能降耗, 数值模拟, 参数优化, 绿色低碳

Abstract:

Given the current situation that some operating parameters of the gas extraction system in Hutubi gas storage deviate from the optimal value to cause low energy-saving efficiency,the energy efficiency of the gas extraction system is analyzed through pinch analysis and exergy analysis methods. A simulation study is performed based on HYSYS software,giving rise to the scheme of energy conservation and consumption reduction. The scheme mainly includes the selection of the gas-gas heat exchanger,the optimization of the glycol-rich liquid inlet temperature,the optimization of the reflux ratio of the regenerator,and the optimization of the phase-change furnace. The calculation model between the inlet pressure and J-T valve back pressure and the theoretical KA value of the gas-gas heat exchanger is established to optimize the selection of the heat exchanger. The optimum inlet temperature of the glycol-rich liquid is determined to be 67 ℃,and the reflux ratio of the regenerator is 0.06. During the operation of the top condenser of the regenerator,the consumption of glycol can be reduced by 84.6%. The energy consumption of the system can be reduced by 9.0% by using the waste heat of the exhaust gas from the regenerator to preheat the external transmission gas. This optimization scheme effectively reduces the total energy consumption of the gas extraction system with minimum alteration.

Key words:

gas storage, energy conservation and consumption reduction, numerical simulation, parameter optimization, green low carbon

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