Compressor Bundle Insertion Device with Threaded Guide Rod
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Solution Overview
Problem
Existing methods for inserting and removing the bundle in a vertical split type compressor face difficulties due to external forces causing orthogonal movement, making the process challenging and time-consuming, especially in environments like at sea where swaying forces are present.
Innovation Solution
A device comprising a plate-like member with a threaded hole and a threaded-rod member that screws into the hole, along with a curved bundle support member, stabilizes the bundle during insertion and removal, preventing vertical and lateral movement caused by external forces, allowing for easier operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a towing cable and hydraulic jack are used to insert and remove the bundle, then the insertion and removal can be performed, but the bundle shifts in the direction orthogonal to the axial direction when external forces are applied, making the work difficult
Solution Approach 1:
A guide structure comprising a guide plate and guide rod is introduced as an intermediary between the bundle and the towing cable/hydraulic jack system. The guide plate is fixed to the bundle end surface, and the guide rod connects the guide plate to the towing cable, constraining the bundle to move only along the axial direction while preventing orthogonal shifts during insertion and removal operations
Solution Approach 2:
The guidance function is segmented into multiple components: the guide plate attached to the bundle, the guide rod providing the constraint mechanism, and the towing cable for force application. This segmentation allows the system to separately handle the functions of movement control and force application, improving overall operation ease while maintaining stability
2Productivity
If a hydraulic jack is used for insertion and removal, then the work can be performed, but the mounting position must be changed depending on the progress of the work, requiring much time
Solution Approach 1:
The guide structure is designed to remain in place throughout the entire insertion and removal process, serving multiple functions: guiding the bundle during insertion, supporting the bundle during hydraulic jack operation, and facilitating removal. This eliminates the need to reposition support equipment at different stages, significantly reducing time loss and improving productivity
3Ease of manufacture
If the bundle is inserted and removed in the axial direction, then the compressor can be assembled and disassembled, but external forces cause orthogonal movement that complicates the process
Solution Approach 1:
The guide structure is installed beforehand on the bundle before insertion begins. This preliminary setup creates a constraint system that actively counteracts external forces (such as vessel motion or misalignment forces) that might cause orthogonal movement, allowing the bundle to be inserted and removed easily along the axial direction without being affected by external disturbances
Data Source
Figure 1
Figure 2A~2C
Figure 2D~2E
AI summary
This assembling and diassembling device (1) for a compressor (31) has a substantially cylindrical bundle (32) that is received insertably and removably on an inner circumferential surface of a substantially tubular compressor casing (33) that is mounted horizontally and further includes: a plate-like member (2) that is provided on an axial end portion (32a) of the bundle (32) at an opposite side of an insertion direction so as to protrude outward in the radial direction of the bundle (32) and a threaded-rod member (3) that inserts and removes the bundle (32) connected to the plate-like member (2) into and from the compressor casing (33) by being screwed into a threaded hole (2a) provided in the plate-like member (2) and being rotated.