Liquid Aeration System Using Intermittent Flow for Air Injection
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Solution Overview
Problem
Existing liquid aeration methods, such as using blowers for air injection, consume significant energy and cause environmental pollution, with limited oxygen dissolution in liquids, particularly in wastewater treatment and aquaculture.
Innovation Solution
A liquid aeration system utilizing an intermittent liquid feeding mechanism and a pipe connected to a liquid storage tank, where the liquid flows due to a level difference, injecting air from the pipe into the liquid, eliminating the need for blowers and enhancing oxygen dissolution through turbulence and contact time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a blower is used to inject air into liquid, then air can be injected into liquid, but energy consumption increases and environmental pollution occurs
Solution Approach 1:
The liquid flow itself performs the air injection function by passing through the pipe, eliminating the need for external blowers. The system uses the liquid's own kinetic energy and the pre-existing air in the pipe to achieve aeration, making the system self-sufficient and energy-efficient
Solution Approach 2:
The invention extracts and utilizes the air that already exists in the pipe, rather than introducing external air sources. By capturing and injecting this trapped air into the liquid, the system eliminates the need for energy-consuming blowers while still achieving effective air injection
2Quantity of substance
If a blower is used to inject air into liquid, then air can be injected into liquid, but environmental pollution occurs
Solution Approach 1:
The system uses naturally occurring air already present in the pipe and the liquid's own flow characteristics to perform aeration, eliminating the need for external blowers that consume electricity and cause environmental pollution
Solution Approach 2:
The invention converts the potentially wasted air trapped in the pipe into a useful resource for liquid aeration. By utilizing this otherwise unused air, the system achieves environmental benefits while maintaining effective air injection
3Quantity of substance
If air is injected directly into liquid using a blower, then air can be added to liquid, but oxygen dissolution is limited and most air escapes from liquid
Solution Approach 1:
The intermittent liquid feeding creates periodic flow pulses through the pipe, which enhances mixing and contact between air and liquid. This periodic action increases oxygen dissolution efficiency compared to continuous or direct injection methods
Solution Approach 2:
The air is pre-positioned in the pipe before liquid flow occurs. When liquid passes through, it immediately contacts and dissolves the pre-positioned air, maximizing dissolution efficiency before the air can escape
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 approach reduces energy consumption and environmental impact while increasing air dissolution efficiency in liquids, making it suitable for various applications including wastewater treatment and aquaculture without the need for additional aeration equipment.
Implementation Method 1
the liquid can flow from the intermittent liquid feeding means through the pipe into the liquid storage means intermittently and quantitatively using the liquid level difference between the upstream position and the downstream position
Implementation Method 2
when liquid is flowing through the pipe, the liquid would sufficiently contact with the air existed in the pipe, and the air can be sufficiently dissolved into the liquid
Data Source
AI summary
A liquid aeration system comprising: an intermittent liquid feeding means (10) located at an upstream position for receiving liquid from a liquid resource; a liquid storage means (20) located at an downstream position for receiving the liquid from the intermittent liquid feeding means (10) quantitatively and intermittently; and a pipe (30) connected between the intermittent liquid feeding means (10) and the liquid storage means (20), the outlet of which is located below the liquid surface of the liquid storage means (20), such that the liquid can flow from the intermittent liquid feeding means (10) through the pipe (30) into the liquid storage means (20) intermittently and quantitatively using the liquid level difference between the upstream position and the downstream position, so as to inject the air existed in the pipe (30) into the liquid in the liquid storage means (20).