Faucet Water Purifier Valve and Dual-Filter Backflushing
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Solution Overview
Problem
Existing faucet water purifiers suffer from issues such as incomplete purification due to large pore sizes in ceramic or activated carbon filters, and rapid clogging of ultrafiltration filters, leading to poor water quality and short service life, especially in areas with poor water quality.
Innovation Solution
A faucet water purifier with a dual-filter system, comprising a primary ceramic filter and a secondary ultrafiltration filter, where purified water from the primary filter flushes the secondary filter, and a control valve manages the flow to prevent cross-contamination and facilitate backflushing of the primary filter, ensuring independent flow channels for purified and waste water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single ultrafiltration filter is used to purify tap water, then the purification effectiveness is improved, but the filter is prone to blockage and the service life is reduced
Solution Approach 1:
The filtration system is divided into two independent stages: a primary ceramic filter for pre-filtration and a secondary ultrafiltration filter for final purification. This segmentation allows each filter to perform its specific function optimally while protecting the ultrafiltration filter from direct exposure to heavily contaminated water, thereby extending its service life.
Solution Approach 2:
The primary ceramic filter performs preliminary filtration to remove large particles, sand, and sediments before water enters the secondary ultrafiltration filter. This preliminary action protects the ultrafiltration filter from rapid clogging while maintaining high purification effectiveness.
2Device complexity
If a single ceramic or activated carbon filter is used, then the device complexity is reduced, but the purification completeness is insufficient
Solution Approach 1:
The filtration system is divided into two independent stages: a primary ceramic filter for pre-filtration and a secondary ultrafiltration filter for final purification. This segmentation allows each filter to perform its specific function optimally while protecting the ultrafiltration filter from direct exposure to heavily contaminated water, thereby extending its service life.
3Device complexity
If the ultrafiltration filter is used without flushing mechanism, then the device complexity is reduced, but the filter clogs rapidly and becomes unusable
Solution Approach 1:
The system uses purified water from the filtration process to automatically flush the ultrafiltration filter, eliminating the need for external flushing mechanisms. This self-service approach extends filter life and maintains purification effectiveness without adding complex external flushing systems.
Solution Approach 2:
The purified water outlet serves dual functions: providing purified water for consumption and serving as a flushing medium for the ultrafiltration filter. This multi-functionality extends filter life without requiring separate flushing infrastructure.
4Device complexity
If purified water channels and waste water channels are not separated, then the device complexity is reduced, but cross-contamination occurs and water quality deteriorates
Solution Approach 1:
The water flow system is segmented into completely separate channels: one channel for purified water delivery and another for waste water discharge. This physical separation prevents cross-contamination and maintains water quality without requiring complex active control 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
The dual-filter system effectively purifies water to a drinkable standard, prolongs the service life of the filters by preventing clogging, and maintains water quality by flushing the secondary filter with purified water, reducing the need for expensive desktop purifiers.
Implementation Method 1
a primary filter adapted for a primary purification of the tap water
Implementation Method 2
a secondary filter adapted to repurify the purified water generated by the primary filter
Implementation Method 3
the purified water generated by the primary filter is capable of being guided to flow through the outer surfaces of the ultrafiltration membrane filaments of the secondary filter, so that the outer surfaces of the ultrafiltration membrane filaments of the secondary filter is flushed
Implementation Method 4
the control valve of the faucet water purifier of the present invention is capable of controlling the raw water to back flush the primary filter
Data Source
AI summary
Provided by the present invention is a faucet water purifier, a control valve and a disk assembly for a faucet water purifier, which comprises a control valve and a filtering device, wherein the filtering device defines a first communicating opening, a second communicating opening and a third communicating opening, the control valve comprises a valve body and a valve core, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening, a raw water inlet and a draining opening, wherein the valve core is disposed inside the valve cavity, wherein the first opening is communicated with the first communicating opening of the filtering device, the second opening is communicated with the second communicating opening of the filtering device, the fourth opening is communicated with the third communicating opening of the filtering device, the third opening is communicated with a water outlet of the filtering device, and the raw water inlet of the valve body is adapted to be communicated with a raw water source.