Separator With Annular Throttle Device For Phase Control
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Solution Overview
Problem
Existing three-phase separators have limited controllability and stability in displacing the separation zone, making it difficult to maintain stable process conditions during operation, especially when dealing with varying product quantities and characteristics.
Innovation Solution
A separator with a conical drum mounted rotatably at one end, featuring an oscillating rotary spindle, a stripping disk for the lighter phase, and a settable annular throttle device for the heavier phase, allowing for adjustable outflow cross-sections to control the separation zone's position and radius.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stripping disk is assigned to one or both liquid outlets for throttling to vary dynamic pressure and separation zone position, then the separation zone can be displaced over a certain range, but the range of displaceability is relatively low and the displacement is not sufficiently quick during operation
Solution Approach 1:
The patent replaces the static throttling mechanism with a dynamic adjustable outlet cross-section that can be quickly modified during operation. The liquid outlet for the heavier phase is designed to be adjustable, allowing rapid changes in outflow cross-section to achieve quick displacement of the separation zone, thereby resolving the contradiction between adaptability range and displacement speed.
2Adaptability or versatility
If throttling of the stripping disk is used to displace the separation zone, then the separation zone position can be varied, but stable process conditions are not always achieved since throttling influences multiple process parameters simultaneously
Solution Approach 1:
The patent segments the control functions by assigning different control mechanisms to different liquid outlets. The stripping disk at the lighter phase outlet controls one aspect of separation zone positioning, while the adjustable outlet at the heavier phase outlet provides independent control. This segmentation allows regulation of separation zone position while minimizing simultaneous influence on multiple process parameters, thereby maintaining stability.
3Adaptability or versatility
If an annular throttle device is used in a separator drum with oscillating precessional movement, then the outflow cross section can be varied to displace the heavy liquid phase radius, but it was assumed that stable conditions cannot be established due to the precessional movement
Solution Approach 1:
The patent introduces an annular throttle device as an intermediary element between the separator drum and the liquid outlet for the heavier phase. This throttle device is designed to accommodate the oscillating precessional movement of the drum while maintaining stable throttling conditions. The annular design allows it to function effectively despite the dynamic movement, resolving the contradiction between adjustability and stability.
Data Source
AI summary
A separator having a conical separator drum mounted rotatably at only one of its axial ends and having a vertical axis of rotation. The drum includes a rotary spindle for driving the separator drum. The separator includes an inflow pipe for a product to be processed and at least two liquid outlets. The first liquid outlet is for a lighter phase and the second liquid outlet is for a heavier phase. The first liquid outlet includes a stripping disk. Further included is a solids discharge port and a separation plate stack in the separator drum. The second liquid outlet is followed outside the drum by a settable throttle device having an annular disk for displacing a liquid radius of the heavier phase by a throttling in an outflow cross section for the heavier phase.