Turbo Compressor Adapter Connection for Motor Voltage Adaptability
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Solution Overview
Problem
In turbo compressors, changes in motor voltage require corresponding increases in motor and compressor casing sizes, leading to inventory and cost issues due to the complex shape of the compressor casing.
Innovation Solution
The use of an adapter member with different connection portions allows for the connection of compressor and motor casings of varying sizes without altering the compressor casing size, utilizing seal members for airtight sealing and maintaining pressure receiving areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the motor diameter is increased to correspond to higher voltage specifications, then the motor can accommodate higher voltage, but the compressor casing size must also be increased and inventory costs increase
Solution Approach 1:
The motor casing is divided into two separate parts: a standard-sized main body part that fits within the fixed compressor casing, and a separate mounting flange that extends radially to accommodate larger motor diameters for higher voltage specifications. This segmentation allows the motor to adapt to different voltage requirements without increasing the compressor casing size.
Solution Approach 2:
Instead of increasing the motor diameter in the radial direction (which would require a larger compressor casing), the mounting flange is extended in the axial direction. This dimensional change allows the motor to accommodate higher voltage specifications while maintaining a compact radial profile that fits within the existing compressor casing boundaries.
2Adaptability or versatility
If the compressor casing size is increased to accommodate larger motors, then higher voltage motors can be installed, but inventory locations and manufacturing costs increase due to the complex compressor casing shape
Solution Approach 1:
The motor casing is segmented into a standard main body part and an extended mounting flange. This allows the compressor casing to remain a fixed, standardized size with complex internal flow paths, while the motor casing extension handles the variability required for different voltage specifications, simplifying compressor casing manufacturing.
Solution Approach 2:
The standard-sized main body part of the motor casing serves as a universal component that fits all compressor casings regardless of motor voltage specification. The extended mounting flange then provides the necessary adaptability for different voltage requirements, separating the universal mounting function from the voltage-specific dimensional requirements.
3Adaptability or versatility
If a larger motor casing is used to accommodate higher voltage motors, then the motor can handle higher voltage, but the connection to the standard compressor casing becomes problematic
Solution Approach 1:
The motor casing is segmented into a standard main body part that interfaces with the compressor casing and an extended mounting flange that accommodates larger motor diameters. This segmentation allows the connection interface to remain standardized while the motor voltage capability varies, simplifying the connection structure.
Solution Approach 2:
The extended mounting flange acts as an intermediary element between the standard compressor casing and the larger-diameter motor. It provides the necessary dimensional transition without requiring modification to the compressor casing or creating a complex direct connection between mismatched components.
Data Source
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AI summary
A turbo compressor (5) includes: a compressor casing (20a) which accommodates impellers (13,14) compressing gas by rotation; and a motor casing (20b) which accommodates a motor (10) rotating the impellers, wherein the motor casing (20b) has a cylindrical main body part (43) having a larger diameter than a mounting flange (40) provided in the compressor casing (20a), and the compressor casing (20a) and the motor casing (20b) are connected through an adapter member (60).