Magnetic-Bearing Rotary Phase Separator for Hermetic Space Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current commercial rotary phase separators are inadequate for deep-space, long-duration missions due to their inability to accommodate a wide variety of flow compositions, minimize leakage, operate at varying speeds, and require frequent maintenance.
Innovation Solution
A rotary phase separator utilizing magnetic bearing assemblies, including radial and axial bearings, actively controlled by a bearing controller, which allows for hermetic sealing, reduced maintenance, and operation in harsh environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bearings are used in rotary phase separators, then the device can operate with simpler structure, but wear increases and service life decreases
Solution Approach 1:
The patent replaces conventional mechanical bearings with magnetic bearing assemblies that use magnetic fields instead of physical contact to support the rotor. This substitution eliminates wear between bearing surfaces, dramatically extending service life and reliability while accommodating the need for hermetic sealing in space applications.
Solution Approach 2:
The magnetic bearing assembly introduces magnetic fields as an intermediary between the rotor and stator, allowing the rotor to levitate without physical contact. This intermediary magnetic field enables support and control of rotational motion without the wear and friction inherent in conventional mechanical bearing systems.
2Reliability
If hermetic sealing is implemented to minimize leakage, then sealing performance improves, but maintenance access becomes more difficult
Solution Approach 1:
By replacing mechanical bearings with magnetic bearings, the patent enables hermetic sealing because magnetic bearings have no physical connection between rotating and stationary parts that would compromise sealing. The magnetic field penetrates the housing wall, allowing the rotor to be completely sealed from the external environment while still functioning.
Solution Approach 2:
The magnetic field acts as an intermediary that transfers rotational support across the hermetic barrier of the housing wall. This allows the rotor to be isolated hermetically within the housing while magnetic bearing stators mounted externally provide the necessary support and control forces.
3Adaptability or versatility
If the rotary phase separator is designed for wide speed range operation, then adaptability improves, but control complexity increases
Solution Approach 1:
The magnetic bearing assembly is designed with dynamic control capabilities that allow it to adapt to a wide range of operating speeds. The control system adjusts magnetic field strengths and configurations in real-time to maintain optimal bearing performance across varying rotational speeds, enabling the separator to handle different flow compositions and rates effectively.
Solution Approach 2:
The magnetic bearing assembly serves multiple functions: it supports the rotor radially and axially, provides damping, enables hermetic sealing, and facilitates wide-speed-range operation. This multi-functionality reduces the need for separate systems for each function, ultimately simplifying the overall device despite the advanced control capabilities required.
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 magnetic bearing rotary phase separator minimizes wear, improves load performance, reduces maintenance needs, extends service life, and accommodates a wide range of operating speeds and environmental conditions.
Implementation Method 1
A rotary phase separator for a space environment includes a housing, a shaft, a plurality of magnetic bearing assemblies, and a motor. The magnetic bearing assemblies minimize wear, improves load performance, and reduce maintenance needs.
Implementation Method 2
The shaft is driven by a motor located in the housing. The motor creates rotational motion that generates centrifugal force to separate phases in the liquid/gas mixture.
Implementation Method 3
centrifugal force drives the liquid toward an outer diameter thereby creating a liquid ring that displaces gas
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A rotary phase separator for a space environment includes a housing (26) defining a separator chamber therein and a shaft (14) located along a longitudinal axis of the rotary phase separator and inside the housing (26). Relative motion between the housing (26) and the shaft (14) about the longitudinal axis urging separation of gas and liquid from a two-phase liquid and gas fluid in the separator chamber. One or more magnetic bearing assemblies (36) are supportive of the shaft (14) relative to the housing (26).