Scroll Compressor Inclined Wall Structure for Water Drainage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing scroll compressors require a drain hole and conduit pipe for water accumulation prevention, leading to a complex structure.
Innovation Solution
A scroll compressor design with an inclined wall surface positioned below the center of the rotation shaft to guide water into the working chamber, preventing accumulation and leakage using a simple structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drain hole and water conduit pipe are added to prevent water accumulation, then water leakage is prevented, but the structure becomes complicated
Solution Approach 1:
The dust wrap is designed with its own slope and drainage hole configuration to automatically drain water without requiring external conduit pipes. The structure serves itself by utilizing gravity and its own geometric features to prevent water accumulation, eliminating the need for additional water removal components.
Solution Approach 2:
The water drainage function is extracted from the main compressor body and integrated into the dust wrap structure itself. The drainage hole is positioned in the dust wrap to allow water to be removed directly at the source of accumulation, simplifying the overall system by eliminating separate water removal mechanisms.
2Productivity
If water is injected into working chambers to seal gaps and suppress thermal deformation, then compression efficiency is improved, but water may accumulate in spaces between dust wrap and fixed wrap
Solution Approach 1:
The dust wrap is designed with a slope that creates a gravity-driven water flow path, ensuring water naturally drains to the lowest point where the drainage hole is located. This geometric configuration equalizes the water flow potential throughout the dust wrap structure, preventing accumulation in elevated areas while maintaining efficient water injection into working chambers.
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
Prevents water accumulation and leakage with a simplified design, enhancing efficiency by sealing gaps and reducing thermal deformation.
Implementation Method 1
an inclined wall surface positioned below the center of the rotation shaft to guide water into the working chamber
Implementation Method 2
This provides an effect of sealing very small gaps between members forming the working chambers
Implementation Method 3
suppressing the gaps mentioned before becoming large by absorbing compression heat and preventing thermal deformation of each member
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A scroll compressor is provided that can prevent liquid from being accumulated with a simple structure. The scroll compressor includes: a fixed scroll 11; an orbiting scroll 12; and a rotation shaft 13 that extends in the horizontal direction and causes the orbiting scroll 12 to orbit relative to the fixed scroll 11, and liquid is injected to a working chamber at an intake process or to the upstream side thereof. An enclosing point P of a working chamber formed near the outer end of a fixed wrap 16 of the fixed scroll 11 is positioned below a center O of the rotation shaft 13 and at the lowest point of the contour of the working chamber having shifted to the lowest position. The fixed scroll 11 has an inclined wall surface 33 that is positioned below the center O of the rotation shaft 13, is made to face upward, and extends from the dust wrap 17 to the outer end of the fixed wrap 16. The inclined wall surface 33 is formed so as to be sloped down gradually from the dust wrap 17 toward the outer end of the fixed wrap 16.