行业组件数据 · 2026

静叶片

Stationary vanes are fixed aerodynamic components in swirl chambers that guide and control fluid flow direction and velocity without rotating.

技术定义与适配语境
典型 静叶片 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Stationary vanes are non-rotating blade elements strategically positioned within swirl chambers or vaned diffusers of turbomachinery. They function as flow-directing devices that convert kinetic energy into pressure energy by redirecting fluid streams, minimizing turbulence, and establishing controlled vortex patterns. These components are critical for optimizing efficiency in centrifugal compressors, pumps, turbines, and mixing equipment by ensuring proper flow alignment before entering rotating impellers or after exiting them.

组件规格

定义
Stationary vanes are non-rotating blade elements strategically positioned within swirl chambers or vaned diffusers of turbomachinery. They function as flow-directing devices that convert kinetic energy into pressure energy by redirecting fluid streams, minimizing turbulence, and establishing controlled vortex patterns. These components are critical for optimizing efficiency in centrifugal compressors, pumps, turbines, and mixing equipment by ensuring proper flow alignment before entering rotating impellers or after exiting them.
工作原理
Stationary vanes operate on fluid dynamics principles, primarily Bernoulli's principle and conservation of angular momentum. As fluid passes through the swirl chamber, stationary vanes impart a controlled swirl or straighten flow by changing the fluid's direction through their fixed airfoil-shaped profiles. This converts tangential velocity components into pressure, reduces flow separation, and prepares the fluid for subsequent stages in the machine, enhancing overall thermodynamic and hydraulic efficiency.
材料
Typically manufactured from corrosion-resistant alloys such as stainless steel (AISI 304/316)aluminum alloys (6061-T6)or nickel-based superalloys (Inconel 718) for high-temperature applications. Composite materials like carbon fiber reinforced polymers may be used in specialized lightweight designs. Surface treatments include nitridingchrome platingor ceramic coatings for wear resistance.
Vane Count
8-24 blades
Camber Angle
15-45 degrees
Chord Length
50-200 mm
Pressure Rating
Up to 50 bar
Surface Roughness
Ra 0.8-3.2 μm
Leading Edge Radius
2-10 mm
Trailing Edge Thickness
1-5 mm
Operating Temperature Range
-50°C to 650°C
标准
ISO 1940ISO 21940DIN 1940API 617

行业分类与别名

静叶片 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Material fatigue from cyclic loading->Vane fracture or cracking->Implement regular non-destructive testing (NDT), use fatigue-resistant materials, and optimize vane geometry to reduce stress concentrations.
Cavitation in liquid systems->Surface pitting and material loss->Maintain proper system pressure above vapor pressure, use cavitation-resistant coatings, and design vanes with smooth surface finishes.
Misalignment during installation->Reduced efficiency and increased vibration->Follow precise alignment procedures during assembly, use laser alignment tools, and conduct post-installation performance testing.

工业生态与工程逻辑

0
Flow-induced vibration leading to fatigue failure
1
Erosion from particulate matter in fluid
2
Corrosion in aggressive chemical environments
3
Thermal stress cracking in high-temperature applications

合规与检测

tolerance
Dimensional tolerances per ISO 2768-m, angular tolerance ±0.5°, profile tolerance 0.1 mm
test method
Dye penetrant inspection for surface defects, ultrasonic testing for internal flaws, coordinate measuring machine (CMM) for dimensional verification, flow bench testing for aerodynamic performance

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of stationary vanes in a swirl chamber?

Stationary vanes guide and condition fluid flow by converting kinetic energy into pressure energy, reducing turbulence, and establishing controlled swirl patterns to improve machine efficiency.

How do stationary vanes differ from rotating blades?

Stationary vanes are fixed and do not rotate; they direct flow to or from rotating components. Rotating blades (impellers/turbines) transfer energy by moving through the fluid.

What materials are commonly used for high-temperature stationary vanes?

Nickel-based superalloys like Inconel or titanium alloys are used for temperatures above 400°C due to their thermal stability and corrosion resistance.

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URN:CNFX:ME:UNIT:STATIONARY_VANES