Device for producing and treating a gas stream through a volume of liquid, and facility and method implementing said device
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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 volume treatment, particularly in effectively cooling high-temperature industrial 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 treatment, and an energy recovery system to capture calories, with optional baffles to prevent liquid spraying, enabling high gas flow rates and efficient heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If gas stream is passed through a curtain of fine droplets or through an exchange surface permeable to gas, then heat exchange between liquid and gas stream occurs, but the energy yield of heat exchange is very low and air flow rates are limited
Solution Approach 1:
The liquid is segmented into fine droplets through a spray nozzle system, creating a large surface area for heat exchange. The gas stream passes through this segmented liquid structure, enabling efficient thermal interaction while maintaining high flow rates through the distributed droplet field rather than through restrictive exchange surfaces.
Solution Approach 2:
The invention uses a spray nozzle system driven by hydraulic or pneumatic principles to atomize the liquid into fine droplets. This allows the liquid to be dispersed in a controlled manner through the gas stream, maximizing heat exchange surface area while maintaining system throughput capacity for high air flow rates.
2Loss of energy
If gas stream is passed directly through a volume of liquid contained in an enclosure, then energy yield of heat exchanges is higher than first solution, but high gas flow rates cannot be achieved and large volumes of gas cannot be treated quickly
Solution Approach 1:
Instead of passing gas through a bulk liquid volume, the liquid is segmented into fine droplets that are dispersed throughout the gas stream path. This segmentation creates numerous small heat exchange interfaces distributed in three-dimensional space, allowing high gas flow rates to pass through while maintaining high energy yield through the cumulative effect of many droplet-gas interactions.
Solution Approach 2:
The heat exchange process is transitioned from a two-dimensional surface exchange (through curtains or plates) to a three-dimensional distributed exchange throughout the gas stream volume. Liquid droplets are injected throughout the enclosure space, allowing gas to interact with liquid in multiple spatial dimensions simultaneously, thereby increasing both efficiency and throughput.
3Object-affected harmful factors
If air is passed in a volume of water under vacuum to clean dust, then air filtration occurs, but high air flow rates cannot be achieved and calorie transfer with high air flow rates is not effective
Solution Approach 1:
The harmful function of vacuum suction that limits air flow rate is extracted and replaced. Instead of relying on vacuum pressure differential to drive air through water, the invention uses the natural upward flow of treated air combined with targeted liquid spray injection. This extraction of the vacuum requirement allows high air flow rates while maintaining dust filtration through the liquid spray barrier.
Solution Approach 2:
The system uses pneumatic principles to generate high-velocity gas flow that drives air through the liquid spray field without requiring vacuum. The hydraulic spray system creates a dense curtain of liquid droplets that effectively capture dust particles while allowing high volumetric air flow to pass through the treatment zone.
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 effective treatment of high-flow gas streams with improved energy yield, allowing for efficient cooling, heating, and calorie recovery, suitable for high-temperature industrial applications, while preventing liquid spraying and maintaining operational efficiency.
Implementation Method 1
heat exchange between the liquid and the gas stream
Implementation Method 2
passing the gas stream through a volume of liquid contained in an enclosure, by injecting the air stream in the liquid volume, below the surface of said liquid volume
Implementation Method 3
cooling of the gas stream, and in particular an air stream
Implementation Method 4
The use of a liquid, for example water, to treat, and in particular to heat or cool, a gas stream by heat exchange between the liquid and the gas stream
Implementation Method 5
recovery of calories in a gas stream, and in particular in a hot air stream or in industrial fumes
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.