Bypass Flow Liquid Treatment System for Consistent Low-Flow Dosing
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Solution Overview
Problem
Existing liquid treatment systems face challenges in maintaining consistent treatment component concentration due to variations in usage rates, flow velocity, and line pressure, leading to inefficiencies and reduced system performance, particularly at low flow rates and in applications like surface maintenance machines.
Innovation Solution
A cartridge-based liquid treatment system with a bypass flow path and a liquid conditioning module that uses a drop tube system to maintain uniform treatment solution concentration, independent of main flow path parameters, ensuring consistent dosing of treatment components over extended periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing liquid treatment systems are used, then treatment component concentration can be maintained under stable operating conditions, but the systems fail to maintain consistent concentration under variable operating conditions such as varying flow rates and line pressures
Solution Approach 1:
The system employs a feedback mechanism where a portion of the treated liquid is redirected through a recirculation line back to the treatment component. This creates a closed-loop system that continuously adjusts and maintains consistent treatment component concentration despite variations in main liquid stream flow rate and line pressure, directly resolving the contradiction between reliability under stable conditions and adaptability to variable conditions
Solution Approach 2:
The invention introduces an intermediary recirculation line that carries treated liquid back to the treatment component. This intermediary pathway acts as a buffer and stabilizer, ensuring consistent treatment component concentration by maintaining a controlled flow path independent of the main liquid stream's variable conditions
2Duration of action of stationary object
If existing liquid treatment systems operate at low flow rates, then liquid treatment duration can be extended, but the systems cannot effectively treat liquid at sufficiently low flow rates to provide long lasting treatment
Solution Approach 1:
The recirculation line ensures continuous and consistent flow of liquid through the treatment component by maintaining a controlled return path. This continuous circulation allows the system to effectively treat liquid at low flow rates over extended periods, as the recirculated liquid ensures the treatment component remains actively engaged with the liquid stream without interruption or flow stagnation
3Reliability
If treatment component concentration is increased to ensure adequate dosing, then liquid treatment effectiveness is improved, but excessive treatment component concentration leads to over dosing and increased cost
Solution Approach 1:
The feedback mechanism through the recirculation line continuously monitors and adjusts treatment component concentration, ensuring adequate dosing without excessive addition. This closed-loop control prevents both under-dosing and over-dosing, optimizing treatment effectiveness while minimizing treatment component waste
Data Source
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AI summary
A liquid treatment system comprising a main flow path, a bypass flow path fluidly coupled to a main flow path, and a liquid conditioning module fluidly coupled with the bypass flow path with a reservoir holding treatment components added to liquid entering the reservoir from the bypass flow path to form a treatment solution. A flow rate of liquid in the main flow path is controlled independently of a flow rate of treatment solution flowing into the main flow path. A dispensing component fluidly coupled to the liquid conditioning module controls flow rates or pressures of treatment solution flowing out of the bypass flow path and into the main flow path independently of flow rate of liquid flowing in the main flow path. The liquid treatment system comprises a drop tube system suspended in treatment solution having the highest treatment concentration.