高效高负荷轴流风机气动设计参数选择与三维叶片技术

来源 :第三届中国国际透平机械学术会议 | 被引量 : 0次 | 上传用户:caway1
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
针对高效高负荷轴流风机的设计问题,建立了一套包含参数选取、叶型优化、三维叶片等设计思想的气动设计流程.通过快速的设计迭代,完成了一台压比1.20的高负荷轴流风机的初步设计,载荷系数0.83.同时,证实了叶型优化和三维叶片技术对提高风机效率和裕度的有效性.
其他文献
This paper presented an experimental investigation on the dynamic characteristic of nested compression spring gas foil bearings(NSFB).A test rig was built to test the dynamic characteristic of the NSF
The transient proper orthogonal decomposition(TPOD)method is generalized to high-dimensional rotor system models with common faults and the efficiency of the reduced models is discussed in this paper.
Small distributed sewage treatment systems have attracted a great deal of interest in recent years due to the environmental issues in China.Micro turbo blowers show great potential in small distribute
阐述了专业转子动力学分析软件Samcef Rotors的惯性坐标系和旋转坐标系分析方法,给出了利用旋转坐标系进行旋转壳体转子动力学和振动特性计算分析的方法和流程,同时给出了利用软件计算分析的两个应用实例.
某核电厂3号机组商运前,进行调试试验期间连续出现了3次振动异常问题,其中2次由于振动超手动停机打闸值导致汽轮机被迫打闸停机.经分析确认,汽轮机振动异常根本原因为高中压缸径向通流间隙多级偏下限,容易发生动静碰磨,促成原因为汽水分离再热器二级再热调节阀动作逻辑异常,导致中压缸排汽温度下降过快.发生振动异常情况后,电厂技术人员及时制定方案,避免了再次冲转并网过程中二级再热调节阀动作逻辑异常,并计划后续机
Screw pumps are mainly used to transport liquid metal with high density and high temperature.A 3D gas-fluid two phase model with large eddy simulation(LES)is developed to probe the effect of the speed
The AMB rotor is composed of the mandrel and other sleeves that are assembled on the mandrel with interference fit.For AMB rotor,the more accurate the rotor mode analysis,the better the control design
In order to improve the design of cylindrical roller bearings,to prevent the occurrence of bearing wear and other failures of cylindrical roller,the complete dynamic model of rolling bearing is propos
根据滑动轴承稳态条件下流体动压可倾瓦轴承的计算函数推导出止推轴承承载力公式.考虑止推轴承、止推盘和油膜之间流—固—热多物理场耦合的情况下,建立止推轴承模型,并通过THRUST软件数值模拟分析,验证承载力计算公式的可适用性.考虑止推盘和瓦块的受力、受热形变的前提下,得出轴承载荷和瓦块最高温度在不同转速、不同油膜厚度和不同供油温度下的规律,得到不同油膜厚度下的压力分布图和瓦块的温度云图,为推力轴承的设
Due to the requirement for long lifetime and high rotating speed,an active magnetic bearing in this paper is designed for a 30 kW,60 000 rpm permanent magnet machine.The electromagnetic distribution c