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高效气波冷凝装置流动及热力学特性
  • ISSN号:0438-1157
  • 期刊名称:《化工学报》
  • 时间:0
  • 分类:TQ051.1[化学工程]
  • 作者机构:大连理工大学化工机械学院,辽宁大连116023
  • 相关基金:国家自然科学基金项目(21476036);中国国家科技重大专项(2016ZX0566005-002).
中文摘要:

利用空气动力学理论,建立高效气波冷凝波图,采用二维周期性边界模型,以理想气体为介质对高效气波冷凝分离装置流场、温度场进行数值模拟,优化气波冷凝波图,预估装置内部结构参数。建立冷凝系统热力循环模型,对其热力学特性进行分析。同时搭建实验平台,对影响系统的主要参数进行了研究。实验结果表明:利用激波增压回收高压气源压力能,可以有效恢复脱湿干气压力能。通过回收脱湿干气冷量,预冷下一循环高压进气,可以获得更低冷凝温度。该装置制冷效率存在单值最优点,高效气波冷凝实际内部膨胀效率约为63%,脱湿干气压力能最高恢复90%,且随着制冷压比增大而降低。

英文摘要:

With the theory of aerodynamics, the efficient gas wave condensation graph was established. To optimize the gas wave condensation graph and estimate the internal structure parameters of the device, the two-dimensional periodic boundary model was adapted and the ideal gas as the medium was used to numerical simulate the flow and temperature field of the efficient gas wave condensation separator. The thermodynamic model of condensing system was established and its thermodynamic properties were analyzed. At the same time, the experimental platform was built, and the main parameters of the device were studied. The experimental results shows: by using the shock wave to recycle the pressure energy of the high pressure admission, the pressure energy of the drying gas can be highly recovered. By recycling the cooling capacity of the drying gas and pre-cooling the next high pressure admission circulation, the lower condensation temperature can be obtained. The refrigeration efficiency of this device exists the single-valued optimal point. The internal expansion efficiency of efficient gas wave condensation is about 63% and the maximum of the drying gas pressure can be recovered to 90%, which decreases with the increase of the pressure ratio.

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期刊信息
  • 《化工学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国化工学会 化学工业出版社
  • 主编:李静海
  • 地址:北京市东城区青年湖南街13号
  • 邮编:100011
  • 邮箱:hgxb126@126.com
  • 电话:010-64519485
  • 国际标准刊号:ISSN:0438-1157
  • 国内统一刊号:ISSN:11-1946/TQ
  • 邮发代号:2-370
  • 获奖情况:
  • 中国科协优秀期刊二等奖,化工部科技进步二等奖,北京全优期刊奖,中国期刊方阵“双效”期刊,第三届中国出版政府奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:35185