Compressor Diffuser Integrating Vanes and Deswirler
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing compressor diffusers experience significant energy loss due to the change in flow angle at the inlet of the deswirler, which is not effectively minimized by current designs.
Innovation Solution
A diffuser design where diffuser vanes and a deswirler are integrally formed, featuring a ring-shaped body with main vanes and splitter vanes that include radial, axial, and connection guide portions, with inclined axes and varying thicknesses, to guide fluid flow efficiently and reduce energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If diffuser vanes and deswirler are separately formed, then manufacturing and assembly are easier, but energy loss occurs due to flow angle changes at the inlet
Solution Approach 1:
The patent merges the diffuser vanes and deswirler into a single integrally formed component. The diffuser vane assembly includes both the diffuser vanes and deswirler blades as part of the same structure, eliminating the separate formation and assembly steps. This integration prevents energy loss caused by flow angle changes at the inlet while maintaining manufacturing feasibility through integral forming processes.
2Loss of energy
If diffuser vanes and deswirler are integrally formed, then energy loss is reduced, but manufacturing complexity increases
Solution Approach 1:
The diffuser vane assembly integrates multiple functional elements (diffuser vanes, deswirler blades, radial guide portions, axial guide portions, and connection guide portions) into a single component that can be manufactured as one piece. This integral formation eliminates the need for separate manufacturing and assembly operations, reducing energy loss from flow angle changes while maintaining manufacturing practicality.
3Productivity
If separate diffuser vanes and deswirler are used, then assembly is simpler, but flow guidance efficiency decreases
Solution Approach 1:
The patent combines diffuser vanes and deswirler into an integrated diffuser vane assembly where the components are formed as one piece. This integration ensures continuous and efficient flow guidance from the radial direction through the diffuser vanes into the axial direction via the deswirler blades, eliminating flow separation and angle changes that would occur with separate components, thereby improving flow guidance efficiency.
4Loss of energy
If integrated diffuser design is used, then friction and eddy formation are minimized, but design complexity increases
Solution Approach 1:
The integrated diffuser vane assembly merges the diffuser vanes and deswirler blades into a continuous structure with smooth transitions between radial and axial flow paths. The connection guide portions provide seamless flow guidance, minimizing friction and eddy formation by eliminating abrupt flow angle changes that would occur at the interface of separate components.
Data Source
AI summary
A diffuser for a compressor includes a body having a ring shape and including: a fluid inflow face extending along a radial direction of the diffuser; and a rim bent from the fluid inflow face; main vanes formed on the fluid inflow face and the rim to guide fluid; and at least one splitter vane disposed between adjacent main vanes of the main vanes to guide the fluid.