Motor-Compressor Bundle Assembly for Shaft Coupling Without Access Hatches
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Solution Overview
Problem
Existing motor compressor units face challenges with access ports and hatches that reduce the compressor casing volume, hinder shaft coupling, and compromise sealing integrity, especially in units with small external diameters.
Innovation Solution
The use of removable fastening devices to fasten the compressor bundle to the motor casing, allowing shaft coupling and electrical/mechanical connections through openings in the compressor bundle, eliminating the need for access ports and hatches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If access ports and hatches are provided in the compressor casing to allow shaft coupling and maintenance access, then the coupling operation becomes possible, but the compressor casing volume is reduced and sealing integrity is compromised
Solution Approach 1:
The compressor assembly is divided into separable components: the compressor bundle (containing the rotor and coupling interface) and the compressor casing. The bundle can be detached from the casing, allowing shaft coupling to be performed on the bundle itself before installation, eliminating the need for access ports in the casing. This segmentation enables maintenance operations without compromising the integrity or volume of the sealed casing.
2Ease of operation
If access ports and hatches are provided in the compressor casing to allow shaft coupling and maintenance access, then the coupling operation becomes possible, but the sealing integrity is compromised
Solution Approach 1:
The compressor assembly is divided into separable components: the compressor bundle (containing the rotor and coupling interface) and the compressor casing. The bundle can be detached from the casing, allowing shaft coupling to be performed on the bundle itself before installation, eliminating the need for access ports in the casing. This segmentation enables maintenance operations without compromising the integrity or volume of the sealed casing.
3Ease of manufacture
If a plane is created on the cylindrical compressor casing to localize the access port, then the hatch sealing becomes planar and easier, but the compressor casing volume is reduced
Solution Approach 1:
The compressor assembly is divided into separable components: the compressor bundle (containing the rotor and coupling interface) and the compressor casing. The bundle can be detached from the casing, allowing shaft coupling to be performed on the bundle itself before installation, eliminating the need for access ports in the casing. This segmentation enables maintenance operations without compromising the integrity or volume of the sealed casing.
4Stability of the object's composition
If the compressor bundle is permanently fixed to the motor casing, then structural stability is improved, but maintenance and extraction become difficult
Solution Approach 1:
The fastening system transitions from a permanent fixed state to a dynamic, reversible state. Removable fastening devices (such as bolts or clamps) allow the compressor bundle to be securely attached during operation for structural stability, while enabling easy detachment when maintenance is required. This dynamic fastening system adapts between operational and maintenance states.
5Reliability
If massive coupling guards and slide guides are used to seal the coupling area, then sealing is improved, but the device complexity and volume increase
Solution Approach 1:
The compressor assembly is divided into separable components: the compressor bundle (containing the rotor and coupling interface) and the compressor casing. The bundle can be detached from the casing, allowing shaft coupling to be performed on the bundle itself before installation, eliminating the need for access ports in the casing. This segmentation enables maintenance operations without compromising the integrity or volume of the sealed casing.
Data Source
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AI summary
The compressor bundle (6) for a motor compressor unit (1) includes at least one fastening device (12) configured to fasten the compressor bundle to a motor casing (3) of the motor compressor unit, and also includes at least one opening (13) sized to couple a motor rotor (14) and a compressor rotor (15) through the at least one opening.