Gas Stream Injection Through Liquid Volume for High-Flow Heat Exchange
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Solution Overview
Problem
Existing methods for treating gas streams through a volume of liquid, such as heating or cooling, are inefficient for high gas flow rates and large volumes, particularly in industrial applications like cooling high-temperature fumes or recovering calories, due to low energy yield and limited air flow capabilities.
Innovation Solution
A device with an enclosure submerged in a liquid supply, featuring an injection conduit that introduces high-flow gas streams below the liquid surface, allowing direct contact and efficient heat exchange, and an energy recovery system to capture calories, with optional baffles to prevent liquid spraying, enabling high gas flow rates and effective treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the gas stream is passed through a curtain of fine droplets or through an exchange surface permeable to the gas, then heat exchange between the liquid and gas stream is achieved, but the energy yield of the heat exchange is very low and the air flow rates are limited
Solution Approach 1:
The gas stream is divided into multiple bubbles by passing through a porous plate, increasing the surface area for heat exchange. This segmentation allows more gas-liquid contact interfaces, improving energy yield while maintaining high flow rates through the distributed bubble structure
Solution Approach 2:
The invention transitions from surface-based heat exchange (curtains, permeable surfaces) to volume-based heat exchange by injecting gas into the liquid bulk. This dimensional change from 2D surface contact to 3D volume contact dramatically increases the heat exchange capacity and energy yield
2Loss of energy
If the gas stream is passed directly through a volume of liquid contained in an enclosure by injecting the air stream below the surface, then higher energy yield of heat exchanges is achieved, but high gas flow rates and large volumes of gas cannot be treated quickly
Solution Approach 1:
The gas stream is segmented into numerous small bubbles through a porous plate, creating extensive gas-liquid interfacial area within the liquid volume. This segmentation enables rapid heat exchange for large gas volumes while maintaining high energy yield through the increased contact surface area
Solution Approach 2:
A porous plate is used to inject the gas stream, creating fine bubbles that maximize the gas-liquid contact area. The porous structure distributes the gas flow uniformly, enabling high throughput treatment while maintaining efficient heat exchange energy yield
3Object-affected harmful factors
If a closed enclosure under vacuum is used to aspirate air and create a stream passing through water, then air cleaning is achieved, but high air flow rates cannot be worked with and calorie transfer with high air flow rates is not effective
Solution Approach 1:
Instead of using vacuum aspiration to draw air through water, the invention uses positive pressure injection to force gas through a porous plate into the liquid. This inversion of the pressure approach enables high flow rates while maintaining effective dust filtration through the porous plate and liquid 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
The solution enables efficient heating, cooling, humidification, and dehumidification of gas streams at high flow rates, effectively recovering calories and filtering pollutants, suitable for industrial applications, while maintaining controlled humidity and dust levels.
Implementation Method 1
heat exchange between the liquid and the gas stream
Implementation Method 2
an outgoing gas stream, treated by direct contact with said volume of liquid, rises inside the enclosure
Implementation Method 3
recovery of calories in a gas stream
Implementation Method 4
an energy recovery system to capture calories
Data Source
AI summary
A device for producing and treating a gas stream is provided that includes an enclosure, of which the lower part is submerged in a liquid supply open at the top and includes at least one liquid intake opening. The submerged lower part of the enclosure contains a volume of this liquid and at least one opening for discharging a gas stream, positioned above the surface of the volume of liquid contained in the enclosure. The device further provides for injecting a gas stream including at least one injection conduit and extends in the upper part inside the enclosure outside the volume of liquid. During operation of the device an incoming gas stream is introduced to create an outgoing gas stream, treated by direct contact with said volume of liquid that is discharged outside the enclosure. A facility inclusive of the device and method of operation are also provided.