Centrifugal Compressor Condensed Water Discharge Passage
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Solution Overview
Problem
Existing centrifugal compressors, such as turbochargers, face challenges in externally discharging condensed water accumulated within the housing without requiring additional large-scale devices or piping, as previous solutions do not consider discharge mechanisms for condensed water inside the compressor.
Innovation Solution
A centrifugal compressor design that utilizes a pressure difference between a high pressure part and a low pressure part within the housing to externally discharge condensed water through a discharge passage, eliminating the need for additional piping and simplifying the configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If condensed water is discharged using additional piping and large-scale devices, then discharge effectiveness is improved, but device complexity increases
Solution Approach 1:
The discharge passage is integrated into the housing structure, merging the discharge function with the existing housing rather than using separate piping systems. This reduces device complexity while maintaining discharge effectiveness.
Solution Approach 2:
The compressor impeller itself generates the pressure difference needed for discharge during its normal rotation, eliminating the need for external discharge devices. The system uses its own operational characteristics to achieve condensed water removal.
2Reliability
If separate discharge devices are installed, then condensed water removal capability is improved, but manufacturing complexity increases
Solution Approach 1:
The discharge passage is formed as an integrated part of the housing structure during the housing manufacturing process, eliminating the need for separate discharge device assembly and reducing manufacturing complexity.
Solution Approach 2:
The housing structure serves multiple functions: it contains the compressor components and simultaneously provides the discharge passage for condensed water removal. This multi-functionality simplifies manufacturing by reducing the number of separate components.
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
Effectively discharges condensed water using the pressure difference, reducing the risk of malfunction due to accumulated water and eliminating the need for additional piping, while ensuring efficient operation and maintenance.
Implementation Method 1
a discharge passage formed for connecting the high pressure part to a low pressure part including the suction portion and a gas flow path upstream of the suction portion
Data Source
AI summary
A centrifugal compressor includes a compressor impeller attached to a rotary shaft and a housing accommodating the rotary shaft and the compressor impeller. The housing includes a suction portion formed upstream of the compressor impeller and a high pressure part formed on a rear face side of the compressor impeller and having a pressure higher than a pressure in the suction portion during rotation of the compressor impeller. The housing has a discharge passage formed for connecting the high pressure part to a low pressure part including the suction portion and a gas flow path upstream of the suction portion.