Rotating Disk Droplet Generator for Viscous Fluids
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Solution Overview
Problem
Existing droplet generation methods, particularly for viscous liquids and slurries, fail to maximize surface area contact with gases, as they do not effectively produce droplets that optimize this interaction.
Innovation Solution
A disk assembly comprising two disks with alternating openings that skew apart as a liquid passes through, creating droplets that fall into a gas-liquid contacting space for enhanced interaction, with the disks capable of rotation and sealing to manage viscosity and fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional droplet generation methods (drip trays, nozzles) are used for viscous liquids and slurries, then the device complexity is low, but the surface area contact with gases is not maximized
Solution Approach 1:
The device segments the liquid flow into multiple discrete droplets by passing the liquid through multiple openings in rotating disks. The liquid stream is divided into numerous small droplets that fall sequentially, maximizing the total surface area contact with gases in the reaction zone while using a relatively simple mechanical structure of rotating disks with openings.
Solution Approach 2:
The device uses rotating disks with openings that continuously change their alignment. As the disks rotate, the openings alternately align and skew apart, dynamically controlling the droplet formation and release. This dynamic mechanism enables consistent droplet production for viscous liquids without complex additional components.
2Productivity
If viscous liquids and slurries are processed through traditional methods, then the ease of operation is maintained, but the droplet production efficiency and surface area contact are insufficient
Solution Approach 1:
The rotating disks provide dynamic control over droplet formation. By adjusting the rotational speed of the disks, the alignment and skewing of openings can be controlled to optimize droplet production rate and size. This dynamic adjustment allows efficient processing of viscous liquids while maintaining operational simplicity through a single control parameter (rotational speed).
Solution Approach 2:
The device employs periodic action through the continuous rotation of disks with periodically arranged openings. As the disks rotate, openings alternately align to receive liquid and then skew apart to release droplets. This periodic alignment and skewing creates a continuous stream of uniformly sized droplets, improving productivity while keeping the operation mechanism simple and repeatable.
3Quantity of substance
If droplets are produced to maximize surface area contact, then the heat and material exchange efficiency is improved, but the device complexity increases
Solution Approach 1:
The liquid stream is segmented into numerous small droplets by passing through multiple openings in the rotating disks. This segmentation creates a large total surface area contact with gases in the reaction zone, enhancing heat and material exchange efficiency. The segmentation is achieved through the simple geometric arrangement of openings in the disks rather than complex additional components.
Solution Approach 2:
The rotating disk assembly serves multiple functions simultaneously: it meters the liquid flow, cuts the liquid into droplets, and controls the droplet release timing. The same structural elements (disks with openings) that provide the segmentation function also provide flow control and synchronization, reducing the need for separate components and keeping device complexity low while maximizing surface area contact.
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
This solution enables the production of droplets from fluids of varying viscosities, ensuring optimal surface area contact and heat or material exchange, effectively addressing the limitations of existing methods by producing consistently sized droplets through controlled rotational velocity and opening alignment.
Implementation Method 1
the plurality of first openings and the plurality of second openings alternately align with one another such that, as a liquid passes through the plurality of first openings and the plurality of second openings, the liquid falls as a droplet as the plurality of first openings and the plurality of second openings skew apart
Implementation Method 2
as a liquid passes through the plurality of first openings and the plurality of second openings, the liquid falls as a droplet
Data Source
AI summary
A device for producing droplets is disclosed. A disk assembly comprising a first disk mounted to a second disk is provided. The first disk comprises first openings. The second disk comprises second openings. The first openings and the second openings alternately align with one another such that, as a liquid passes through the first openings and the second openings, the liquid falls as a droplet as the first openings and the second openings skew apart.