潜水器高压吹除缩比实验台架设计  

Reduced-scale experimental bench design of high-pressure blowing system of submersible

作　　者：何曦光[1] 楼京俊[2] 彭利坤[1] 吕帮俊[1] HE Xiguang;LOU Jingjun;PENG Likun;LYU Bangjun(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033 [2]海军工程大学舰船与海洋学院,湖北武汉430033

出　　处：《中国舰船研究》2021年第S01期70-80,共11页Chinese Journal of Ship Research

基　　金：国家部委基金资助项目。

摘　　要：[目的]为研究潜水器高压吹除系统的实验需求,[方法]基于拉瓦尔喷管等熵模型和伯努利方程,建立潜水器高压吹除与排水模型,基于相似准则,设计与实船之间满足斯特劳哈尔及欧拉相似准则的缩比实验台架,完成包括主压载水舱、假海水舱在内的压力容器选型及参数计算。然后,在300,200,100 m工作深度下的舷外背压和100%,75%,50%通海阀通流面积开度以及25,20,15 MPa吹除压强等不同初始条件下,验证缩比实验台架的性能。[结果]结果显示,在不同操作工况下,压载水舱内压缩气膨胀中的尖峰压强均小于容器的工作压强,压载水舱内压缩气膨胀后的稳态容积均小于容器设计容积。[结论]研究表明缩比实验台架能够满足潜水器高压吹除工况实验与性能需求。[Objectives] This paper proposes an experimental bench for manufacturing submersible highpressure blowing systems(HPBS).[Methods]Based on the isentropic blowing model of Laval spray and Bernoulli equations, the mathematical modeling of high-pressure air blowing-off and discharging is accomplished. Based on similarity criterion, a HPBS reduced-scale experimental bench of the Strouhal and the Euler similarity is designed, including the pressure vessel prototype selection and parameter calculation of ballast water tanks and seawater tanks. Under different initial conditions including back-pressures at operating depth of 300, 200 and 100 m, flow areas with sea valve opening degree of 100%, 75% and 50%, and blowing-off pressures of 25, 20 and 15 MPa, the performance of the experimental bench is evaluated. [Results] The results show that, under the above conditions, the maximal pressure of the compressed air in the ballast water tank is lower than the vessel regulation pressure, and the expansion volume of the compressed air in the ballast is beyond the vessels’ regulation cubage.[Conclusions]This proves that the experimental bench can satisfy the performance requirements of submersible HPBS.

关 键 词：潜水器 高压吹除系统 缩比实验台架 相似准则 高压吹除和排水模型 

分 类 号：U661.74[交通运输工程—船舶及航道工程]