Perforated Air Separation Trough for Water Channels
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Solution Overview
Problem
Existing air separation devices for water circulation channels are energy-intensive, require pumps, and are not compact, leading to high operational and acquisition costs, especially at flow speeds above 2 m/s without effective gas separation.
Innovation Solution
An air separation device with a perforated bottom air separation trough that operates under gravity and flow-dynamic forces, eliminating the need for pumps, featuring a water guiding element with an S-curve profile and perforated sections to separate air bubbles efficiently without additional energy input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a calming section of 25 m length is used to separate air bubbles from water circulation channels, then gas separation effectiveness is improved, but device complexity and space requirements increase significantly
Solution Approach 1:
The long calming section is segmented into a compact air separation chamber with a perforated bottom, allowing air bubble separation in a much shorter distance while maintaining effectiveness
Solution Approach 2:
The air separation function is achieved by adding a vertical dimension with the air separation chamber positioned above the main water flow, enabling compact separation without extending the horizontal channel length
2Reliability
If pumps are used to transport water through the calming section and back into the circulation channel, then gas separation is achieved, but energy consumption and operational costs increase
Solution Approach 1:
The air separation chamber uses the natural flow of water from the circulation channel to fill and operate, with air bubbles rising and escaping automatically without requiring external pumping or energy input
Solution Approach 2:
Air bubbles are extracted from the water flow by providing a dedicated separation chamber where they can rise and escape, while the separated water returns to the main channel without requiring mechanical assistance
3Adaptability or versatility
If the air separation device is designed to handle varying air intake at flow speeds up to 2 m/s, then adaptability is improved, but device complexity increases
Solution Approach 1:
The bottom of the air separation chamber is made selectively permeable with perforations only in the bottom region, allowing water to pass through while air bubbles rise and escape, creating a simple yet effective design that handles varying flow conditions
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
Achieves high gas separation rates with minimal energy use, maintaining effectiveness up to 2 m/s without pumps and reducing air intake, while being compact and cost-effective.
Implementation Method 1
water is pressed upwards out of the water circulation channel and into the air separation tank, while in the adjoining (downstream) area of the perforated floor water is drawn down out of the air separation pan back into the main water flow
Implementation Method 2
The flow of the water with a high proportion of air into the air separation tank and the return transport of the water degassed in the air separation tank takes place solely under the influence of gravity (static forces/pressure differences) and due to flow-dynamic effects (Bernoulli; dynamically generated forces/pressure differences)
Implementation Method 3
The water moves at very low speeds in the air separation tank, so that the air bubbles trapped in the water have enough time to rise and exit the water
Data Source
Figure 1~2
Figure 3
AI summary
The device has an air separation tub (3) with a base (4.2) that is arranged below a water level (7) of a water circulation channel (1). The base is perforated in a partial section (9) through an aperture (8). Size and arrangement of the aperture is selected such that water with high air portion in a front part of the perforated portion is sucked from the channel upwards into the separation tube, and water with low air portion in a lower part of the perforated section is sucked downward back into a main water flow of the channel during operation of the channel.