Centrifugal Compressor Housing With Integrated Connection Passage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Centrifugal compressors are unnecessarily enlarged by gaps between the housing and attached pipes, leading to reduced production efficiency due to dimensional tolerances and requiring additional structures to absorb these gaps.
Innovation Solution
The centrifugal compressor integrates a connection passage formed by overlapping first, second, and motor housing members in the axial direction, eliminating the need for separate pipes and reducing gaps, thus enhancing production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate pipe is attached to the housing to form the connection passage, then the connection passage can be formed, but the compressor size increases due to gaps between the housing and pipe
Solution Approach 1:
The connection passage is merged with the housing by forming it as an integral part of the housing structure. The first and second connection passages are formed directly within the housing body, eliminating the need for separate attached pipes and reducing the gaps that would increase compressor volume.
2Ease of manufacture
If a separate pipe is attached to the housing to form the connection passage, then the connection passage can be formed, but production efficiency decreases due to dimensional tolerances requiring additional structures
Solution Approach 1:
The connection passages are combined with the housing as a single integrated component. This merging eliminates the need for separate attachment structures and reduces the complexity of accommodating dimensional tolerances, thereby improving production efficiency.
Solution Approach 2:
The housing is segmented into functional regions including the first connection passage, second connection passage, and impeller chamber. This segmentation allows for precise formation of each passage within the housing structure, reducing the impact of dimensional tolerances and eliminating the need for additional compensating structures.
3Manufacturing precision
If the connection passage is formed by overlapping housing members in the axial direction, then the connection passage is integrated into the housing, but the housing structure becomes more complex
Solution Approach 1:
The housing is divided into multiple members arranged in the axial direction, with connection passages formed in each member. This segmentation allows for precise control of passage geometry and integration while maintaining a structured, modular housing design that manages complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design minimizes the compressor's size increase and improves production efficiency by integrating the connection passage within the housing members, reducing the need for additional structures to accommodate dimensional tolerances.
Implementation Method 1
a first impeller that rotates integrally with the rotary shaft to compress a fluid... a second impeller that rotates integrally with the rotary shaft
Data Source
AI summary
A connection passage is formed by a first impeller housing member, a motor housing member, and a second impeller housing member. This prevents, for example, the formation of a gap between a housing and a pipe, which is separate from the housing, in a centrifugal compressor like in a configuration in which a first discharge port and a second suction port are connected to each other by attaching the pipe to the housing. The connection passage is formed only by sequentially overlapping and coupling the first impeller housing member, the motor housing member, and the second impeller housing member with each other in an axial direction of the rotary shaft. This eliminates, for example, the need to provide a structure in the pipe that absorbs the dimensional tolerances that occur between the housing and the pipe when attaching the pipe to the housing.