Multiple Venturi Scrubber for Retrofit Gas Cleaning
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Solution Overview
Problem
Existing scrubber technologies face inefficiencies in gas cleanliness and high pressure drops, leading to increased energy costs and equipment upgrades, while alternative designs with multiple venturis are expensive and require vessel modifications for retrofits.
Innovation Solution
A system with multiple venturis arranged in parallel or series, each receiving a portion of the inlet stream and equipped with nozzles, inlet and outlet cones, and throats, allowing for flexible scaling and individual replacement or repair, suitable for efficient gas separation and retrofitting existing equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single large venturi is used, then the system is inexpensive and simple, but gas cleanliness efficiency is insufficient and pressure drop is high
Solution Approach 1:
The patent divides a single large venturi into multiple smaller venturis (typically 2-4 units) that operate in parallel. Each venturi processes a portion of the gas stream, providing sufficient cleaning efficiency while maintaining reasonable pressure drop. This segmentation resolves the contradiction by achieving high efficiency without requiring a single large venturi that would create excessive pressure drop.
Solution Approach 2:
The patent combines multiple venturi units with a common separator vessel and liquid supply system. The venturis are arranged to receive gas streams that are ultimately combined and processed together in the separator. This merging approach allows individual venturis to be smaller and more efficient while maintaining overall system simplicity and cost-effectiveness.
2Productivity
If multiple venturis are positioned within the separator vessel, then efficiency at low pressure drop is improved, but system cost increases and vessel modification is required
Solution Approach 1:
The patent extracts the venturi units from the separator vessel and positions them externally. Each venturi is a separate, standalone unit that receives gas streams externally before directing them to the separator. This extraction eliminates the need to modify existing separator vessels, reducing installation complexity and cost while maintaining the efficiency benefits of multiple venturis.
Solution Approach 2:
The external venturi design creates a modular system where the same venturi units can be applied to various separator vessels and existing scrubber systems. This universality allows the solution to be adapted to different applications without requiring custom vessel modifications, thereby reducing overall system complexity and installation cost.
3Adaptability or versatility
If multiple venturis are used, then flexibility in scaling and maintenance is improved, but system complexity increases
Solution Approach 1:
The patent segments the gas cleaning function into multiple independent venturi units, each capable of handling a specific portion of the gas stream. This segmentation enables flexible scaling where additional venturis can be added in parallel to increase capacity, and individual units can be maintained or replaced without shutting down the entire system. The modular nature manages complexity through standardization of individual units.
Solution Approach 2:
The patent creates a dynamically adaptable system where the number of active venturis can be adjusted based on processing requirements. Individual venturis can be brought online or taken offline as needed, allowing the system to dynamically scale with changing demands. This dynamic configuration manages complexity by allowing selective operation of components rather than requiring all components to operate simultaneously.
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 provides flexible operating parameters, reduces downtime, and enables efficient gas cleaning with reasonable pressure drops, while being cost-effective and suitable for retrofits, enhancing the scalability and maintainability of scrubber systems.
Implementation Method 1
Gas enters the venturi portion of the scrubber where a liquid is sprayed in to the throat of the venturi. The purpose of the venturi is to impact the liquid with the matter to be removed.
Implementation Method 2
The liquid is then separated from the gas through impact with a liquid level at the bottom of the venturi, and through centrifugal forces in the separator vessel
Data Source
AI summary
A scrubber removes matter (e.g., particulate, gaseous, or liquid) from a gas stream in order to recover the matter and/or to clean the gas. In particular aspects, the scrubber contains multiple venturis that may provide additional flexibility and increased efficiency. The invention also pertains to related methods.