Pipe Flow Vanes and Injection Mixing for Faster Water Treatment
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Solution Overview
Problem
In large diameter conduits used for water treatment, existing systems face inefficiencies in mixing additives with the main liquid flow, leading to prolonged treatment times and increased capital and operational expenses due to the need for storage and energy consumption.
Innovation Solution
The implementation of a diversion conduit system with flow vanes and an injection structure, including nozzles and a flow grid, to enhance the transfer efficiency of treatment substances by diverting a portion of the liquid, mixing it with additives, and reintroducing it into the main flow, thereby improving mass transfer characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a side stream is diverted from the main liquid flow for treatment substance mixing, then the treatment efficiency is improved, but the volume of diversion flow increases leading to higher energy consumption and longer treatment time
Solution Approach 1:
The invention changes the physical parameters of the liquid flow by introducing flow vanes that create turbulence and alter flow patterns. This increases the mass transfer coefficient and treatment efficiency, allowing for reduced diversion flow volumes while maintaining effective treatment, thereby reducing energy consumption.
2Reliability
If a side stream is diverted from the main liquid flow for treatment substance mixing, then the treatment efficiency is improved, but the treatment time is prolonged
Solution Approach 1:
The flow vanes modify the flow regime parameters to create more effective mixing conditions. This accelerates the mass transfer process, allowing treatment to be completed more quickly even with side stream diversion, thus reducing the overall treatment time while maintaining high treatment efficiency.
3Reliability
If a large volume of side stream is diverted for treatment, then sufficient treatment substance distribution is ensured, but the capital expenditure increases due to larger storage requirements
Solution Approach 1:
By changing the flow parameters through the introduction of flow vanes and turbulence enhancement, the invention achieves more efficient mass transfer with smaller diversion volumes. This reduces the required storage capacity for liquid holding while ensuring adequate distribution of treatment substances throughout the main flow.
4Use of energy by moving object
If the diversion flow volume is reduced to decrease energy consumption, then the treatment efficiency decreases
Solution Approach 1:
The flow vanes and turbulence enhancement devices change the physical parameters of the flow to maximize mass transfer efficiency. This allows the system to achieve effective treatment with minimal diversion flow volumes, thereby reducing energy consumption while maintaining or even improving treatment efficiency compared to conventional systems.
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 approach significantly reduces the volume of the diversion flow, minimizing treatment time, energy consumption, and storage requirements, while ensuring effective distribution of treatment substances, thus lowering initial investment and operational costs.
Implementation Method 1
a plurality of flow vanes disposed circumferentially about the cylindrical inner wall, the plurality of flow vanes configured to improve the mass transfer of the treatment substance into the liquid flowing through the pipe
Implementation Method 2
an injection structure which injects the first mixture into the pipe at a downstream location
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An apparatus and method for increasing the mass transfer of a treatment substance into a liquid flowing in a pipe in a full pipe flow regime has a diversion conduit which receives a portion of the liquid. The portion of the liquid is mixed with a treatment substance and then reintroduced into the pipe at a downstream location through an injection structure. Between the diversion conduit, on the upstream side, and the injection structure, on the downstream side, there are a plurality of flow vanes disposed circumferentially about a cylindrical inner wall of the pipe, where each flow vane extends radially inward toward a central axis of the pipe, extending into the main stream flow of the liquid. Another embodiment of the invention has a flow grid located downstream of the injection structure.