Self-Locking Valve Body for First-Glass Water Quality Control
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Solution Overview
Problem
Ultra-low pressure reverse osmosis pumpless water purification systems face issues with the 'first glass of water' problem, where the initial water post-purification is often unqualified due to frequent startups, leading to secondary pollution and operational inefficiencies, and the need for frequent replacement of storage buckets.
Innovation Solution
A self-locking level control valve with a piston and ejector rod mechanism that prevents frequent system startups, ensuring consistent water quality and avoiding immersion-related pollution, by using a valve body design that includes a first and second cavity, a valve core, and an elastic reset member to manage water flow and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If ultra-low pressure reverse osmosis pumpless water purification system is used, then electricity consumption is reduced, but water quality becomes unqualified due to frequent startups
Solution Approach 1:
The patent replaces the traditional pressure switch (mechanical/electrical control system) with a magnetic float control system. The magnetic float automatically opens or closes the water inlet valve based on water level, eliminating the need for electrical components and frequent system startups, thus maintaining water quality while achieving pumpless operation
Solution Approach 2:
The system uses the weight and buoyancy of the magnetic float itself to control the water inlet valve. When water level rises, the float automatically closes the valve; when water level drops, the valve opens. This self-regulating mechanism prevents frequent startups and maintains reliable water quality without external electrical control
2Extent of automation
If pressure switch is used to control water purification system, then automatic control is achieved, but frequent startups occur causing water quality deterioration
Solution Approach 1:
The patent replaces the pressure switch (electrical automatic control) with a magnetic float mechanical control system. The float mechanically opens or closes the valve based on water level, achieving automatic control without electrical components that cause frequent startups and water quality issues
3Quantity of substance
If storage bucket is used to store purified water, then water storage is achieved, but secondary pollution occurs due to air ingress
Solution Approach 1:
The patent uses a flexible magnetic float that moves with water level changes to control the valve. This flexible component creates a seal that prevents air from entering the storage bucket, avoiding secondary pollution while maintaining water storage capability
Solution Approach 2:
The magnetic float control system maintains a sealed environment in the storage bucket, preventing air (oxygen) from contacting the stored water. This creates an inert-like protective atmosphere that prevents oxidation and secondary pollution of the purified water
4Reliability
If larger bucket is placed for concentrated water collection, then overflow prevention is achieved, but space occupation increases and aesthetics deteriorate
Solution Approach 1:
The patent introduces a magnetic float as an intermediary mechanism between the water level and the valve control. This float-mediated control system precisely regulates water flow, preventing overflow without requiring excessive storage space, thus solving both the overflow prevention and space occupation contradictions
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 prevents reactive power loss, ensures low emission and safe water quality, and addresses the 'first glass of water' issue by avoiding frequent system startups and secondary pollution, while allowing for automatic overflow prevention and waste water recycling.
Implementation Method 1
an elastic reset member, configured to push the valve core to move in the axial direction to close the second water inlet
Implementation Method 2
the valve core, arranged in the first cavity and coaxial with the second water inlet, includes a piston and a first ejector rod being coaxial with the piston
Data Source
AI summary
A valve body, including a first cavity, a second cavity communicated with the first cavity through a second water inlet of the second cavity, a valve core and an elastic reset member; the valve core, arranged in the first cavity and coaxial with the second water inlet, includes a piston and a first ejector rod being coaxial with the piston; the piston is configured to open or close the second water inlet; the elastic reset member is configured to press the valve core to move in the axial direction to close the second water inlet. A self-locking level control valve is adopted. The water purifier achieves no reactive power loss, low emission and safe water quality, avoids frequent startup of the water purification system, and solves the technical problem of the “first glass of water” brought by the ultra-low pressure reverse osmosis pumpless water purification system.