Faucet Water Purifier Back-Flush Control Valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing faucet water purifiers face issues with filter blockages and reduced service life due to inadequate cleaning mechanisms, leading to potential contamination of purified water and environmental concerns from waste water.
Innovation Solution
A faucet water purifier with a control valve that allows for back-flushing of the primary filter, ensuring independent flow channels for purified and waste water, and an additional terminal filter using carbon fiber material to improve water taste, extending the filter's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter is used continuously to purify water, then the purification function is maintained, but the filter becomes blocked and service life is reduced
Solution Approach 1:
The patent implements periodic back-flushing action to reverse the filtration direction at intervals. The control valve switches between normal filtration mode and back-flushing mode, allowing water to flow through the filter in reverse direction to dislodge and remove accumulated particles, thereby restoring filter permeability and extending service life while maintaining continuous purification capability
Solution Approach 2:
The patent applies inversion by reversing the water flow direction through the filter during back-flushing operation. Instead of water flowing from the filtration surface outward, the control valve redirects water to flow from the outlet side back through the filter elements, effectively cleaning the filter by flushing trapped particles out through the inlet side, thus resolving the blockage issue
2Ease of operation
If waste water from back-flushing is discharged near the purified water outlet, then the back-flushing function is simple, but the waste water pollutes the purified water
Solution Approach 1:
The patent segments the water discharge system into separate channels: one channel for purified water and another dedicated channel for waste water from back-flushing. The control valve directs waste water to a separate discharge outlet positioned away from the purified water outlet, preventing contamination while maintaining simple operational control through valve positioning
Solution Approach 2:
The control valve acts as an intermediary device that manages the separation of purified water and waste water flow paths. By controlling the valve position, the system routes waste water through a separate pathway that discharges away from the purified water outlet, effectively mediating between the back-flushing function and contamination prevention requirements
3Device complexity
If only a single filter is used, then the device structure is simple, but the water taste and quality are insufficient
Solution Approach 1:
The patent employs a nested filtering structure where the terminal filter is positioned within or adjacent to the primary filter assembly. The terminal filter using carbon fiber material is integrated into the existing filter housing, creating a compact multi-stage filtration system that improves water quality and taste without significantly increasing device complexity or requiring separate housing structures
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 solution effectively prevents waste water from contaminating the purified water outlet, extends the filter's service life through back-flushing, and enhances water quality by using a terminal filter, addressing the issues of filter blockages and contamination.
Implementation Method 1
a primary filter, wherein the outer casing defines a first accommodation cavity, wherein the primary filter is provided inside the first accommodation cavity of the outer casing
Implementation Method 2
the control valve is capable of controlling the raw water to back-flush the primary filter
Implementation Method 3
a terminal filter, wherein the base defines a second accommodation cavity, wherein the terminal filter is provided inside the second accommodation cavity of the base; and the filter material of the terminal filter is carbon fiber material
Data Source
AI summary
Provided by the present invention is a faucet water purifier for filtering a raw water, which comprises a control valve and a filtering device, wherein the filtering device defines a first communicating opening and a second 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 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 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.