Heat Source Unit Bottom Frame Segmentation for Compressor Addition
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Solution Overview
Problem
The existing heat source unit design does not consider the addition of a second compressor for increased operating capacity, requiring reevaluation of refrigerant circuit components and casing size, leading to inefficiencies and increased time and effort in installation and vibration analysis.
Innovation Solution
The heat source unit features a divided bottom frame with a main and sub bottom frame for separate mounting of compressors and refrigerant circuit components, allowing for independent vibration analysis and simplified addition of a second compressor without altering the first compressor's layout or casing size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the bottom frame is designed as a single integrated frame, then the structure is simple and easy to manufacture, but adding a second compressor requires reevaluation of layout and vibration analysis
Solution Approach 1:
The bottom frame is divided into a main bottom frame and a sub bottom frame that can be independently designed and manufactured. The main bottom frame supports the first compressor, while the sub bottom frame is specifically designed to accommodate the second compressor. This segmentation allows each frame to be optimized independently, enabling easy addition of the second compressor without redesigning the entire bottom frame structure.
2Area of stationary object
If all refrigerant circuit components are arranged on a single bottom frame, then the overall structure is compact, but adding a compressor requires reconsideration of all component arrangements
Solution Approach 1:
Refrigerant circuit components are divided between the main bottom frame and sub bottom frame. The main bottom frame contains components associated with the first compressor, while the sub bottom frame contains components associated with the second compressor. This segmentation allows independent arrangement optimization for each compressor system, eliminating the need to redesign the entire component layout when adding a second compressor.
Solution Approach 2:
The sub bottom frame with the second compressor and its associated refrigerant circuit components is extracted as a separate module from the main bottom frame. This extraction allows the second compressor system to be designed and added independently, without affecting the arrangement of components on the main bottom frame.
3Adaptability or versatility
If a second compressor is added to increase operating capacity, then the system flexibility is improved, but vibration analysis must be redone for the entire module
Solution Approach 1:
Vibration analysis is segmented into independent analyses for the main bottom frame and sub bottom frame. Since the sub bottom frame with the second compressor is a separate module, its vibration characteristics can be analyzed independently without needing to reanalyze the entire module. This significantly reduces the time and computational resources required for vibration analysis when adding a second compressor.
4Adaptability or versatility
If the bottom frame is divided into main and sub frames, then adding a second compressor is simplified, but the manufacturing process becomes more complex
Solution Approach 1:
While the bottom frame is segmented into main and sub frames, each segment is designed as a standardized module with pre-defined mounting positions and connection interfaces. The sub bottom frame can be manufactured separately and then easily assembled to the main bottom frame using standard fastening methods. This modular approach with standardized interfaces minimizes the increase in manufacturing complexity while maximizing the ease of adding a second compressor.
Data Source
AI summary
A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).