Oxygen Generator Gas Path Structure for Timed Nitrogen Discharge
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Solution Overview
Problem
Existing oxygen generators face issues with imprecise control of nitrogen discharge time and lack of pressure equalization, leading to oxygen waste during the backflushing process.
Innovation Solution
A gas path control structure incorporating blowback valve seats, check valves, solenoid valves, and equalizing valves to precisely control nitrogen discharge and implement pressure equalization, enhancing oxygen production efficiency and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a restrictor valve is used for backflushing, then oxygen can be continuously blown back to the other sieve cylinder, but the nitrogen discharge time cannot be precisely controlled and oxygen is wasted
Solution Approach 1:
The patent replaces the mechanical restrictor valve with a solenoid valve that can be precisely controlled through electrical signals. This substitution allows for accurate timing control of nitrogen discharge while maintaining the backflushing function, thereby resolving the contradiction between ease of operation and measurement precision.
Solution Approach 2:
The control system incorporates feedback mechanisms to monitor and adjust the nitrogen discharge timing. By detecting the actual discharge time and comparing it with the desired time, the system can make real-time adjustments to optimize the backflushing process and eliminate oxygen waste.
2Ease of operation
If a restrictor valve is used for backflushing, then oxygen can be continuously blown back, but there is no pressure equalization function
Solution Approach 1:
The patent designs the valve system to perform multiple functions: the solenoid valve not only controls nitrogen discharge timing but also enables pressure equalization between cylinders. This multi-functional design resolves the contradiction by maintaining ease of operation while adding the required adaptability for pressure equalization.
3Device complexity
If a restrictor valve is used for backflushing, then the structure is simple, but oxygen waste occurs
Solution Approach 1:
The patent replaces the simple but wasteful restrictor valve with a solenoid valve that, while slightly more complex, provides precise control over the backflushing process. This substitution eliminates oxygen waste by accurately timing the nitrogen discharge, resolving the contradiction between device complexity and substance loss.
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 allows precise control of nitrogen discharge time, reduces oxygen consumption, and improves oxygen production efficiency while integrating nitrogen discharge and pressure equalization, resulting in a compact and cost-effective design.
Implementation Method 1
two solenoid valves are respectively mounted on the blowback valve seat and pulse valve seat
Implementation Method 2
the two check valves are mounted on the two paths of the pulse valve seat respectively
Implementation Method 3
Small oxygen generators often utilize the adsorption performance of molecular sieves to separate the nitrogen and oxygen in the air
Implementation Method 4
gas path control structure of an oxygen generator integrating nitrogen discharge and pressure equalization
Data Source
AI summary
A gas path control structure of an oxygen generator with nitrogen discharge and a gas path control structure of an oxygen generator integrating nitrogen discharge and pressure equalization are provided. The gas path control structure of an oxygen generator with nitrogen discharge includes a blowback valve seat, two check valves, a pulse valve seat and two solenoid valves. The gas path control structure of an oxygen generator integrating nitrogen discharge and pressure equalization includes a pulse valve seat, check valves, a blowback valve seat, a solenoid valve, an equalizing valve and a check valve seat.