Multi-Walled Oil Separation Barrel for Uniform Compressor Gas Flow
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Solution Overview
Problem
Existing semi-hermetic screw compressors with single-wall oil separation barrels face inefficiencies in gas flow uniformity and oil separation, and cyclone structures that improve efficiency increase machine size and cost.
Innovation Solution
An oil separation barrel with multiple circumferential walls that change the gas flow direction multiple times, enhancing flow field uniformity and separation efficiency through centrifugal and impact separation, while also reducing noise and vibration with a double-walled structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-wall oil separation barrel is used, then the structure is simple and manufacturing cost is low, but the gas flow uniformity is poor and oil separation efficiency is not high
Solution Approach 1:
The oil separation barrel is divided into multiple circumferential walls (first circumferential wall and second circumferential wall) that segment the oil separation cavity into multiple regions. This segmentation creates multiple flow paths for the gas, improving flow uniformity and oil separation efficiency without significantly increasing manufacturing complexity
Solution Approach 2:
The invention transitions from a single-wall structure to a multi-wall structure by adding circumferential walls in the radial dimension. This dimensional change creates multiple oil separation cavities and improves gas flow distribution while maintaining a compact overall structure
2Productivity
If a cyclone separation structure is added to improve oil separation efficiency, then the oil separation efficiency improves, but the machine body becomes excessively long and manufacturing cost increases
Solution Approach 1:
Instead of using a single long cyclone structure, the invention segments the oil separation function into multiple circumferential walls that create several shorter oil separation cavities. This achieves comparable or superior separation efficiency while keeping the axial length compact
Solution Approach 2:
Rather than extending the machine length axially to achieve better separation, the invention inverts the approach by using radial segmentation with multiple circumferential walls. This creates multiple separation zones within a compact axial footprint, effectively reducing the machine body length
3Productivity
If a cyclone separation structure is added to improve oil separation efficiency, then the separation performance improves, but the manufacturing cost increases
Solution Approach 1:
The oil separation barrel is segmented into multiple circumferential walls forming multiple oil separation cavities. This segmentation approach distributes the separation function across multiple simpler components rather than requiring a single complex cyclone structure, potentially reducing manufacturing cost while improving efficiency
Solution Approach 2:
The multiple circumferential walls serve dual functions: they create multiple oil separation cavities for improved separation efficiency and also act as structural support elements. This multi-functionality reduces the need for additional separate components, thereby controlling manufacturing cost
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 multi-walled oil separation barrel significantly improves gas flow uniformity and oil separation efficiency, reduces noise and vibration, and maintains a compact compressor design without increased manufacturing costs.
Implementation Method 1
The output gas flow flows in the oil separation cavity of the barrel body having two or more circumferential walls in such a manner that it changes the advance direction multiple times, which can make the flow field uniform, improve oil separation efficiency
Implementation Method 2
the output gas flow impacts the circumferential wall surfaces in the oil separation barrel multiple times, which can further improve the efficiency of oil separation
Implementation Method 3
The output gas flow flows in the oil separation cavity of the barrel body having two or more circumferential walls in such a manner that it changes the advance direction multiple times, which can make the flow field uniform, improve oil separation efficiency and reduces noise and vibration
Data Source
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AI summary
Disclosed is an oil separation barrel, which comprises an oil separation and filtration structure (3) provided in the oil separation barrel, an oil separation cavity and an output port (4). An output gas flow is filtered by the oil separation and filtration structure (3), then enters the oil separation cavity, and finally is output from the output port (4). At least part of the oil separation cavity is provided with two or more layers of circumferential walls. The output gas flow flows in the oil separation cavity in such a manner that it changes the advance direction multiple times, which can make the flow field uniform and reduce noise and vibration; and the output gas flow impacts the circumferential wall surfaces in the oil separation barrel multiple times, which can further improve the efficiency of oil separation. The oil separation barrel is provided in a screw compressor, and the screw compressor is provided in an air conditioning unit.