Turbo Compressor With Separate Cooling Air Channel
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Solution Overview
Problem
Turbo compressors face inefficiencies due to pressure loss and increased compression efficiency reduction caused by using compressed air for cooling, which also heats up the air to be compressed, leading to ineffective cooling of the motor and bearings.
Innovation Solution
A turbo compressor design with spatially separate compression and cooling gas channels, incorporating a cooling gas channel and a cooling water channel with circulating fans and fins for efficient heat exchange, preventing gas permeation and allowing independent operation of the cooling system without pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a part of air compressed by the impeller is used to cool the motor and bearings, then the cooling system configuration is simplified, but pressure loss occurs in the compressed air
Solution Approach 1:
The patent divides the gas flow paths into separate compression gas channel and cooling gas channel, preventing mixed usage of compressed air for both compression and cooling functions. This segmentation eliminates pressure loss in the compression system while maintaining simplified cooling system design.
2Reliability
If the cooling gas is heated by the motor and bearings and then supplied again to the impeller, then the cooling function is achieved, but the temperature of the air to be compressed is increased and compression efficiency is reduced
Solution Approach 1:
The patent implements spatial separation of compression gas channel and cooling gas channel, ensuring that heated cooling gas does not mix with fresh compression air. This maintains compression efficiency while achieving reliable motor and bearing cooling through dedicated cooling air supply.
3Device complexity
If the compression gas channel and cooling gas channel are not spatially separate, then the device structure is simplified, but gas permeation occurs causing pressure loss
Solution Approach 1:
The patent provides spatial separation of compression gas channel and cooling gas channel to prevent gas permeation and pressure loss, while maintaining relatively simple device structure through integrated channel design within the housing.
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
The design efficiently cools the motor and housing without pressure loss, maintaining compression efficiency by isolating the compression gas channel from the cooling system, enabling effective heat dissipation and reduced temperature increase in the compressed air.
Implementation Method 1
a cooling gas channel passing through the motor accommodation space and enabling circulation of a cooling gas contained therein
Implementation Method 2
a cooling water channel for enabling circulation of a cooling liquid therein
Implementation Method 3
Cooling fins capable of increasing heat exchange efficiency may be provided between the cooling water channel and the cooling gas channel
Data Source
AI summary
Provided is a turbo compressor for compressing a gas such as air and supplying the compressed gas to outside, the turbo compressor including a compression unit including a compression gas inlet for sucking the gas, an impeller for compressing the gas sucked through the compression gas inlet, a compression gas outlet for discharging the gas compressed by the impeller, and a compression gas channel connected from the compression gas inlet to the compression gas outlet, a motor including a rotary shaft having a front end coupled to the impeller, to rotate the impeller, a housing having a motor accommodation space to accommodate the motor, and a cooling gas channel passing through the motor accommodation space and enabling circulation of a cooling gas contained therein, wherein the compression gas channel is spatially separate from the cooling gas channel and thus the gas in the compression gas channel does not permeate into the cooling gas channel.According to the present invention, the motor may be efficiently cooled without pressure loss of the compression unit.