文章摘要
严文杰,李奇,赵一鸣,李长河,胡大鹏.压缩比和膨胀比对气波分压器性能影响[J].,2021,61(6):586-592
压缩比和膨胀比对气波分压器性能影响
Effect of compression ratio and expansion ratio on performance of gas wave divider
  
DOI：10.7511/dllgxb202106005
中文关键词: 分压器  波转子  压缩比  膨胀比  实验研究
英文关键词: divider  wave rotor  compression ratio  expansion ratio  experimental research
基金项目:国家重点研发计划资助项目(2018YFA0704602).
作者单位
严文杰,李奇,赵一鸣,李长河,胡大鹏  
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中文摘要:
      气波分压器是一种新型压力交换设备．首先通过数值模拟方法，揭示气波分压器的工作原理，而后搭建实验平台，研究压缩比和膨胀比对气波分压器的中、低压端口间制冷温降和高压出气流量占比的影响．实验结果表明：在膨胀比一定时，中、低压端口间制冷温降和高压出气流量占比随着压缩比的增大而减小；膨胀比越大，其所能达到的极限压缩比越大，即在膨胀比越大的情况下，其能实现的增压范围越广，当膨胀比为2.4时，其极限压缩比约为1.375．在压缩比一定的情况下，中、低压端口间制冷温降随着膨胀比的增大而增大，而高压出气流量占比随着膨胀比的增大呈先增大后减小的趋势，在其他操作参数和结构参数不变的情况下，最大高压出气流量占比对应的膨胀比不随压缩比的改变而改变．
英文摘要:
      Gas wave divider is a new type of pressure exchange equipment. Firstly, the working principle of gas wave divider was revealed by numerical simulation method, and then an experimental platform was built to study the influence of compression ratio and expansion ratio on the cooling temperature drop between the middle and low pressure ports and the ratio of the high pressure outlet flow of the gas wave divider. The experimental results show that when the expansion ratio is constant, the cooling temperature drop between the middle and low pressure ports and the ratio of high pressure outlet flow decrease with the increase of the compression ratio. The larger the expansion ratio is, the larger the ultimate compression ratio will be. In other words, the larger the expansion ratio is, the wider the range of pressurization it can achieve. When the expansion ratio is 2.4, the ultimate compression ratio is about 1.375. When the compression ratio is constant, the cooling temperature drop between the middle and low pressure ports increases with the increase of the expansion ratio, while the ratio of the high pressure outlet flow increases first and then decreases with the increase of the expansion ratio. When other operating parameters and structural parameters remain unchanged, the expansion ratio corresponding to the maximum high pressure outlet flow ratio does not change with the change of compression ratio.
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