基于乏汽增压的水下半闭式循环动力系统研究

郭 庆; 罗 凯; 党建军; 秦 侃; 陈 猛

doi:10.11993/j.issn.2096-3920.2021.06.006

基于乏汽增压的水下半闭式循环动力系统研究

doi: 10.11993/j.issn.2096-3920.2021.06.006

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金项目资助(51805435).

详细信息

通讯作者:
*通信秦侃(1988-), 男, 副教授, 主要研究方向为水下航行器动力推进技术.

中图分类号: TJ630.32 TK14
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- 文章访问数: 191
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- 被引次数: 0
出版历程
- 收稿日期: 2021-09-10
- 修回日期: 2021-10-28
- 刊出日期: 2021-12-31

Architecture of Underwater Semi-closed Cycle Power System Based on Exhaust Booster

School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

摘要

摘要: 为提升水下涡轮机动力系统的深度适应性, 提出2种半闭式循环动力系统构型方案, 分别是基于乏气掺混冷凝与气液混合物分离后单相增压排放的分离增压方案以及基于乏气掺混冷凝与气液混合物直接增压排放的混合增压方案。建立了水下开式涡轮机动力系统与半闭式系统增压排放的理论计算模型, 并通过计算流体力学方法加以验证。多工况性能分析结果表明: 相比开式循环系统, 半闭式系统在大航深工况下的燃烧室压力与燃气耗量显著降低, 其在600 m工况下的燃气消耗量仅为开式动力系统的60%左右, 在1 000 m工况下的运行参数仅相当于开式系统200~300 m航深的水平。通过对比2种半闭式系统构型方案可知, 压缩效率可对系统运行产生直接影响, 较高的压缩效率可有效提升动力系统深度适应性能。
- 水下涡轮机 /
- 动力系统 /
- 乏气增压 /
- 半闭式循环 /
- 深度适应性
Abstract: Two semi-closed-cycle power system configuration schemes are presented in this paper to promote the depth adaptability of underwater turbine power systems. The exhaust gas is first condensed by mixing with the cooling water, and then the gas-liquid mixture is separated and pressurized using a single-phase pump; this is the first scheme (separa-tion-pressurization scheme). In the second scheme(mixture pressurization scheme), the condensed gas-liquid mixture is pressurized directly by multiphase pumps. Theoretical models for an underwater turbine open-cycle power system and compression part of a semi-closed system are established, and the underwater turbine open-cycle power system model is verified using the computational fluid dynamics method. A performance analysis is conducted, and the results show a significant reduction in the combustion chamber pressure and gas consumption in the semi-closed systems under depth water conditions. At a depth of 600 m, the gas consumption in semi-closed systems is approximately 60% of that of the open system. The operating parameters of the semi-closed systems at a depth of 1 000 m are equivalent to those of the open system at a depth of 200~300 m. Compression efficiency has a direct impact on the system operation. A higher compression efficiency contributes to improving system performance. The proposed two semi-closed systems can effectively improve the depth adaptability of the power system, but their applicability needs to be further discussed according to the operating conditions and component performance.
- underwater turbine /
- power system /
- exhaust booster /
- semi-closed cycle /
- depth adaptability

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参考文献(18)

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