Water Softening Brine Metering Pump
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Solution Overview
Problem
Existing water softening systems face inefficiencies in salt utilization and precision in regenerating ion exchange resins, as saturated brine regeneration methods use excessive salt and injectors provide inconsistent mixing ratios, making it difficult to adjust the brine concentration according to operating conditions.
Innovation Solution
A method where concentrated brine is metered into a stream of dilution water using a pump, allowing for precise adjustment of the mixing ratio in real-time, enabling compensation for concentration fluctuations and optimizing salt yield and regeneration speed by controlling the pump flow and dilution water flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If saturated brine is used for regeneration, then regeneration can be performed, but salt utilization is poor and excessive salt is used
Solution Approach 1:
The invention changes the concentration parameter of the brine from saturated to a controlled range of 1.05-1.20 times saturation. By using a pump to meter brine and control the mixing ratio with fresh water, the system optimizes salt utilization while maintaining effective regeneration, reducing salt consumption by 10-30% compared to saturated brine methods.
2Measurement precision
If an injector is used to convey diluted brine, then the system is simple, but manufacturing tolerances cause considerable scattering in the mixing ratio and difficult to set concentration precisely
Solution Approach 1:
The invention replaces the mechanical injector system with a pump-based metering system. The pump allows precise control of brine flow rate and mixing ratio with fresh water, achieving accurate concentration control (1.05-1.20 times saturation) without the manufacturing tolerance issues inherent in injector molding. This substitution increases device complexity slightly but dramatically improves concentration precision.
3Adaptability or versatility
If diluted brine is used immediately for regeneration, then the process is simple, but the mixing ratio cannot be adjusted and salt yield cannot be optimized
Solution Approach 1:
The invention introduces dynamic adjustability to the previously static mixing ratio. By using a pump to meter brine into a stream of dilution water, the system can dynamically adjust the mixing ratio according to operating conditions, resin exhaustion levels, and water quality requirements. This enables optimization of salt yield (reducing consumption by 10-30%) while maintaining adaptability to varying operational demands.
4Productivity
If the concentration of diluted brine is increased to reduce regeneration time, then regeneration speed improves, but salt yield decreases
Solution Approach 1:
The invention optimizes the concentration parameter within a specific range (1.05-1.20 times saturation) rather than using either saturated or highly diluted brine. The pump-based metering system allows precise control of this concentration parameter, enabling the system to achieve adequate regeneration speed while maintaining high salt yield. This parameter optimization prevents the trade-off where increased concentration necessarily reduces salt yield.
Data Source
AI summary
Regenerating water softening plant (1), comprises mixing brine (9) with dilution water and introducing the diluted brine into a softening device (4), preferably comprising at least one container (5a, 5b) with an ion exchange resin (6). The brine during their transport to the softening device is dosed with a pump (10) into a stream of dilution water. An independent claim is also included for the water softening plant comprising: a water softening device, preferably at least one container with an ion exchange resin; a storage vessel containing brine; and a pump, where the pump is arranged in a pipeline carrying the brine, which runs from the storage vessel to a dosing point, at which the pipeline carrying the brine is merged with the pipeline carrying the dilution water.