High-Gravity Rotating Bed Motor Integration for Pressure Sealing
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Solution Overview
Problem
High-gravity rotating beds face challenges in sealing and heat management when used in high-pressure systems, leading to potential safety hazards and process instability, particularly in chemical reactions involving flammable, explosive, or toxic media.
Innovation Solution
A compact high-gravity rotating bed device design where a motor is integrated within a housing, eliminating the need for a sealing device between the rotor and static housing, and incorporating a bearing plate to divide the housing into a reaction and balance chamber, allowing for pressure balance and minimal leakage, with a pipeline for protective gas introduction to maintain stable pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a motor is integrated within the housing of the high-gravity rotating bed device, then the structure becomes more compact and sealing issues are eliminated, but the motor generates heat that cannot be removed by common cooling manners
Solution Approach 1:
The motor is integrated within the housing of the high-gravity rotating bed device, combining the drive mechanism and reaction chamber into a single compact unit. This eliminates the need for external sealing devices between the rotor and static housing, solving the sealing problem while maintaining structural compactness.
Solution Approach 2:
A bearing plate is introduced as an intermediary component that divides the housing into a reaction chamber and a balance chamber. The bearing plate serves as a thermal and structural intermediary, supporting the motor and rotor weights while allowing for pressure balance between chambers, which helps manage the heat generation issue by creating separate thermal zones.
2Reliability
If magnetic driving is applied to the high-gravity rotating bed, then shaft seal leakage is fundamentally solved, but great heat is generated that cannot be removed and creates safety hazards
Solution Approach 1:
The patent replaces the magnetic driving system with a direct motor integration approach. By mounting the motor directly within the housing and driving the rotor through a bearing plate, the system eliminates magnetic driving's heat generation problem while maintaining the benefit of no shaft seal leakage, as the motor and rotor are contained within a sealed housing structure.
3Stability of the object's composition
If the housing is divided into reaction chamber and balance chamber by a bearing plate, then pressure balance is achieved and stability is improved, but the device complexity increases
Solution Approach 1:
The housing is segmented into two functional chambers: a reaction chamber for chemical processes and a balance chamber for pressure balancing. The bearing plate acts as a dividing structure that supports the motor and rotor weights while allowing pressure equalization between chambers. This segmentation improves pressure stability and reaction stability by preventing pressure fluctuations from affecting the chemical reaction process.
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 solution enables stable operation in high-pressure environments with reduced sealing issues and ensures pressure stability, enhancing the safety and efficiency of chemical reactions by maintaining a balanced pressure and minimizing heat-related hazards.
Implementation Method 1
a bearing plate is arranged in the housing, and the bearing plate divides the housing into a reaction chamber and a balance chamber; and the bearing plate is used for bearing weights of the motor and the rotor
Implementation Method 2
a British company named Imperial Chemical Industries (ICI) proposed a concept of high-gravity technology on the basis of an experimental result that a mass transfer process is hardly carried out under space microgravity, and invented a high-gravity rotating packed bed (RPB). Liquid infinitesimals are torn to be in a micron or nano scale in a high-gravity field, so that the mass transfer and mixing processes are greatly reinforced
Data Source
AI summary
A high-gravity rotating bed device, including a motor, a rotor and a housing. The rotor and the motor are entirely arranged within the housing. A load-bearing plate is provided within the housing. The load-bearing plate divides the housing into a reaction chamber and a balance chamber. The motor is arranged within the balance chamber. A transmission shaft of the motor passes through the load-bearing plate and is fixedly connected to the rotor arranged within the reaction chamber. A gas inlet, a gas outlet, a liquid inlet and a liquid outlet are arranged on the housing. An externally communicating pipeline is arranged on the balance chamber. Also disclosed is an application of the present high-gravity rotating bed device under high-pressure conditions in operations such as mixing, transferring and reacting.