Parallel Pre-treatment Filter Arrangement for Water Purifier Flow Resistance
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Solution Overview
Problem
Conventional water purifiers face challenges with increased flow path resistance and decreased flow rate due to multiple filters in series, limiting the number of filters and making it difficult to use various types of filters, as well as inconvenient filter replacement due to different replacement cycles.
Innovation Solution
A water purifier design featuring a raw water flow path with parallel arrangements of pre-treatment filters and a water purifying filter, including a post-treatment filter, with inlet and outlet configurations to reduce flow resistance and facilitate easy filter replacement by using composite filters of the same type, thereby extending filter lifespan and improving user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple filters are connected in a row (series arrangement), then water purification performance is improved, but flow path resistance increases and flow rate decreases
Solution Approach 1:
The patent segments the filtration system into multiple independent parallel channels, each containing filters of the same type. This allows water to be divided and filtered through multiple paths simultaneously, maintaining high flow rate while achieving comprehensive purification. The segmented parallel structure reduces flow resistance compared to series arrangement while preserving purification effectiveness.
Solution Approach 2:
The patent transitions from a one-dimensional series arrangement to a two-dimensional parallel arrangement of filters. By organizing filters in parallel channels rather than sequentially, the system increases the cross-sectional area for water flow, reducing flow resistance and maintaining higher flow rates while still achieving multiple stages of purification.
2Reliability
If various types of filters are used in series, then water purification performance is improved, but filter replacement becomes inconvenient due to different replacement cycles
Solution Approach 1:
The patent uses filters of the same type arranged in parallel channels, ensuring homogeneous filtration characteristics across all channels. This homogeneity allows all filters to be replaced simultaneously at the same maintenance interval, greatly improving operational convenience while still achieving comprehensive water purification through the parallel multi-channel structure.
Solution Approach 2:
The parallel channel design with identical filters gives each filter the same function and replacement schedule. This universality allows the system to maintain high purification performance through multiple parallel filtration paths while enabling simplified maintenance where all filters can be replaced together, eliminating the complexity of tracking different replacement cycles for various filter types.
3Reliability
If multiple filters are arranged in series, then comprehensive water purification is achieved, but the number of available filters is limited and it is difficult to employ various filters
Solution Approach 1:
The patent creates a dynamic and flexible filter configuration by arranging multiple identical filters in parallel channels. This parallel structure allows for easy expansion by adding or removing entire filter channels, and provides flexibility in configuring the number and arrangement of filters without being constrained by the sequential dependencies of series arrangements. The system can be dynamically adjusted to meet different purification requirements.
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
The design enhances outflow pressure by reducing flow path resistance and extends filter lifespan by allowing for easier replacement of filters, improving user convenience and maintaining consistent filter performance.
Implementation Method 1
a plurality of pre-treatment filters arranged in parallel on the clean water flow path to filter the raw water
Implementation Method 2
a water purifying filter arranged on the clean water flow path to receive clean water discharged from the plurality of pre-treatment filters
Data Source
AI summary
A water purifier is provided. The water purifier includes a raw water flow path provided to introduce raw water from an outside, a clean water flow path connected to the raw water flow path, pre-treatment filters arranged in parallel on the clean water flow path to filter the raw water, and a water purifying filter arranged on the clean water flow path to receive clean water discharged from the pre-treatment filters.