Single Gas Riser Exhaust Treatment Apparatus
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Solution Overview
Problem
The existing exhaust gas treatment apparatuses for removing sulfur oxides from flue gas have complex structures, leading to high construction costs and maintenance difficulties due to numerous gas risers and a three-layer partition configuration, which complicates the removal of adhered gypsum and increases the area occupied by the apparatus.
Innovation Solution
A simplified exhaust gas treatment apparatus with a single partition dividing the sealed vessel into two layers, reducing the number of gas risers and eliminating the exhaust gas deriving portion, allowing treated exhaust gas to be derived directly outside through a single gas riser with an eliminator at its upper end, thereby reducing construction costs and enhancing maintenance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple gas risers are provided to derive treated exhaust gas from the absorbing liquid storage portion, then the exhaust gas treatment effectiveness is improved, but the device complexity and construction cost increase
Solution Approach 1:
The invention merges multiple gas risers into a single gas riser that extends from the absorbing liquid storage portion through the exhaust gas introducing portion to the outside of the sealed vessel. This single integrated structure replaces the conventional multiple separate gas risers, thereby reducing device complexity and construction cost while maintaining the functionality of deriving treated exhaust gas effectively
2Reliability
If a three-layer partition configuration (upper stage deck, lower stage deck, and absorbing liquid storage portion) is used, then the exhaust gas treatment process is improved, but the device complexity and maintenance difficulty increase
Solution Approach 1:
The invention extracts and eliminates the exhaust gas deriving portion (upper stage deck) from the conventional three-layer partition configuration. By removing this intermediate layer and extending the gas riser directly to the outside of the sealed vessel, the structure is simplified to essentially two main layers (lower stage deck and absorbing liquid storage portion), reducing device complexity and maintenance difficulty while preserving treatment effectiveness
3Productivity
If numerous gas risers are provided between the lower stage deck and upper stage deck, then the treated exhaust gas derivation is improved, but the area occupied by the apparatus increases
Solution Approach 1:
The invention changes the spatial arrangement by extending the single gas riser vertically through all layers to the outside of the sealed vessel, rather than having multiple gas risers arranged horizontally between decks. This vertical dimensionality change consolidates the exhaust gas derivation function into a single vertical pathway, maintaining productivity while minimizing the horizontal area occupied by the apparatus
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 configuration simplifies the structure, reduces construction and maintenance costs, and enhances space efficiency by minimizing the area required for the apparatus while maintaining effective exhaust gas treatment.
Implementation Method 1
a plurality of sparger pipes which are in communication with the exhaust gas introducing portion, extend inside the absorbing liquid stored in the lower absorbing liquid storage portion from the partition, and eject and disperse exhaust gas in the absorbing liquid from the exhaust gas introducing portion
Implementation Method 2
a gas riser which is in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion and extends upward from the partition to pass through the exhaust gas introducing portion... the gas riser is provided to extend to the outside of the sealed vessel upper than the exhaust gas introducing portion, and treated exhaust gas is derived outside the sealed vessel by the gas riser
Implementation Method 3
an absorbing liquid storage portion which is provided on the lower side of the partition of the sealed vessel and stores an absorbing liquid for desulfurization absorbing sulfur oxides from exhaust gas
Implementation Method 4
an eliminator which is provided at an upper end of the gas riser and removes droplets from treated exhaust gas rising in the gas riser
Data Source
AI summary
The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. A portion of the sealed vessel lower than the partition is an absorbing liquid storage portion, and a portion of the sealed vessel upper than the partition is an exhaust gas introducing portion. The partition is provided with a large number of sparger pipes so that the sparger pipes reach inside an absorbing liquid stored in the absorbing liquid storage portion. The partition is provided with a single gas riser in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion. An upper end of the gas riser passes through a top plate portion of the sealed vessel and protrudes upward.