Gas Buffer Drum with Inclined Nozzles for Heat Recovery
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Solution Overview
Problem
Existing solutions for handling exhaust gases from heating systems are inefficient in recovering heat and filtering contaminants, leading to environmental pollution and high operational costs due to excessive steam formation, clogging, and high power demands.
Innovation Solution
An apparatus with a gas buffer drum and suction duct system, utilizing nozzles with inclined blow directions to create a whirl in the gas handling liquid, combined with a turbine-driven suction mechanism to enhance heat exchange and filtration efficiency while minimizing power consumption and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If exhaust gas is bubbled through liquid to recover heat, then heat recovery efficiency is improved, but excessive steam formation occurs when liquid temperature reaches about 40°C, limiting further heat recovery
Solution Approach 1:
The bubbling process is divided into two distinct phases: a first bubbling phase that operates below the critical temperature threshold to avoid excessive steam formation, and a second bubbling phase that operates after steam separation. This segmentation allows the system to recover heat efficiently without exceeding the temperature limit that causes problematic steam generation.
Solution Approach 2:
Steam separation is performed as a preliminary action before the second bubbling phase. By removing steam from the gas stream beforehand, the system prevents excessive steam formation during continued heat recovery bubbling, enabling sustained heat recovery at efficient temperatures.
2Duration of action of moving object
If multiple bubbling heat exchanger units are connected in series to extend heat exchange time, then heat recovery is improved, but steam development becomes even more extensive in subsequent tanks due to high steam content from preceding tanks
Solution Approach 1:
Steam separation is implemented as a preliminary action between bubbling phases. This prevents the accumulation and transmission of excessive steam through the system, allowing extended heat exchange time without compounding steam development problems in subsequent processing stages.
3Reliability
If electric pumps are used to circulate liquid and establish pressure difference for bubbling, then bubbling and heat exchange are maintained, but production and operating costs become considerable
Solution Approach 1:
The system uses the energy already present in the exhaust gas stream itself to drive the bubbling process. The gas pressure and flow characteristics are harnessed to naturally circulate the liquid and maintain bubbling without requiring external electric pumps, making the system self-sufficient and eliminating additional energy consumption.
Solution Approach 2:
Electric mechanical pump systems are replaced with a gas-driven natural circulation system. The exhaust gas flow itself provides the driving force for liquid circulation and bubbling, substituting electrically-powered mechanical systems with a passive gas-driven mechanism that utilizes the inherent energy of the process stream.
4Reliability
If solid filters are used to filter contaminants, then filtration is achieved, but filter efficiency continuously decreases due to rapid impregnation with contaminants and cleaning is complex and costly
Solution Approach 1:
Solid mechanical filters are replaced with a liquid-based filtration system. The liquid phase absorbs and carries away contaminants through the bubbling process, eliminating the need for solid filter media that become clogged and require complex cleaning or replacement procedures.
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 apparatus effectively recovers usable heat from gases, filters solids and liquids, and reduces contaminant deposition, achieving high efficiency and low operational costs by extending heat exchange time and using a low-power suction system.
Implementation Method 1
nozzles with inclined blow directions to create a whirl in the gas handling liquid
Implementation Method 2
enhance heat exchange and filtration efficiency
Implementation Method 3
suction duct submerged in gas handling liquid situated in the tank, and having a gas outlet duct connected into the gas room of the tank
Implementation Method 4
turbine-driven suction mechanism
Implementation Method 5
bubbling said gas into the gas handling liquid through perforations
Implementation Method 6
effectively recovers usable heat from gases
Implementation Method 7
filters solids and liquids
Implementation Method 8
enhance heat exchange and filtration efficiency
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to an apparatus and a method for handling gases, the apparatus comprising an inlet gas duct (2) leading said gas to a bubbling tank (21), and a gas buffer drum (3) opening into the tank (21) via perforations formed on a plate (3a) of the drum (3), and a suction duct (5) submerged in gas handling liquid (7) situated in the tank (21 ), and having a gas outlet duct (8) connected into the gas room (3b) of the tank (21). Said perforations formed on the plate (3a) of the drum (3) are shaped as nozzles (4) having a blow direction (J) inclined by an acute angle relating to the plate (3a). The apparatus further comprising a valve (31) for draining the liquid (7) and a turbine house (22) divided into two chambers (22a, 22b) by a plate (27), the first chamber (22a) housing an air turbine (43) driven by a liquid turbine (23) housed in the second chamber (22b) and operated by a liquid jet nozzle (26). The first chamber (22a) is connected to the tank (21) by means of the gas outlet duct (8), and the suction duct (5) is connected to the liquid jet nozzle (26) via pump (29a), and the second chamber (22b) is connected to the tank (21).