Centrifugal Separator Curved Inlet and Sealed Chamber
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Solution Overview
Problem
The existing centrifugal separators, such as the ALFDEX ™< separator, face issues including pressure losses in fluid flow pathways, contamination of cleaned gas with oil, and manufacturing and reliability problems.
Innovation Solution
The proposed gas cleaning separator incorporates a housing with a rotor assembly that includes blade elements with guide surfaces to align the mixture of substances, a stack of separating discs, and a unique inlet design with a recessed portion to enhance fluid flow and reduce contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the fluid pathways through the separator are designed according to the prior art ALFDEX separator, then the separator can separate gas and oil, but pressure losses occur which adversely affect the flow capacity
Solution Approach 1:
The patent applies curved surfaces throughout the separator design, including a curved inlet passage that smoothly transitions gas into the rotating chamber, curved separator surfaces that guide oil-gas separation, and a curved outlet passage that efficiently directs cleaned gas outward. These curved pathways eliminate sharp angles and abrupt transitions, reducing turbulence and pressure losses while maintaining effective separation functionality.
2Reliability
If the prior art separator arrangement is used, then separation occurs, but cleaned gas can become contaminated with oil under certain conditions
Solution Approach 1:
The patent extracts the oil-contaminated zone from the cleaned gas flow path by implementing a sealed rotating chamber that contains the oil separation process. The cleaned gas is extracted through a sealed outlet in the stationary housing, physically separated from the rotating oil-mist mixture, ensuring that cleaned gas cannot become re-contaminated during exit from the separator.
3Ease of manufacture
If certain manufacturing techniques and construction features are used in the prior art separator, then the separator can be assembled, but assembly difficulties and reliability problems occur
Solution Approach 1:
The patent merges multiple components into integrated assemblies that simplify manufacturing and assembly. The rotating chamber is designed as an integrated unit with the turbine wheel and separator surfaces, reducing the number of separate parts. The stationary housing incorporates the outlet passage and sealing surfaces as unified structures, eliminating the need for complex gasket assemblies and multiple fastening operations, thereby improving both assembly ease and reliability.
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 improved design reduces pressure losses, minimizes oil contamination of cleaned gas, and addresses manufacturing and reliability issues, resulting in a more efficient and reliable gas cleaning process.
Implementation Method 1
a centrifugal separator for the cleaning of a gaseous fluid... a rotor assembly for imparting a rotary motion onto the mixture of substances... so as to impart motion on a mixture of substances to be separated
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. The separator (2') comprises: a housing (4') defining an inner space, a rotor assembly (78',84') for imparting a rotary motion onto said mixture of substances, the rotor assembly (78',84') is located in the inner space and rotatable about an axis (64') relative to the housing (4'), wherein the rotor assembly comprises an inlet (600) for receiving said mixture of substances, an outlet (604) from which said substances are ejected from the rotor assembly during use, and a flow path (602) for providing fluid communication between the inlet (600) and outlet (604), the rotor assembly (78',84') further comprising a rotary shaft (78'); The rotary shaft (78') is provided with a coating of a plastics material along a length of said rotary shaft (78') slidably receiving at least one component of the separator (2').