Breathing Machine Pipeline Structure for Condensed Water Backflow Prevention
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Solution Overview
Problem
Conventional breathing machines using diaphragm type check valves face issues with unsmooth exhalation, high use risk due to diaphragm degradation, and increased costs, as they fail to prevent condensed water from entering the machine, leading to component erosion.
Innovation Solution
A pipeline structure comprising a first branch, second branch, third branch, and flow guide component that directs air flow to prevent backflow of condensed water, reducing expiration pressure and extending the service life of the breathing machine by guiding humid air and condensed water away from the machine's internal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a diaphragm type check valve is used to prevent condensed water backflow, then the breathing machine components are protected from erosion, but the exhalation process becomes unsmooth and expiration pressure increases
Solution Approach 1:
The pipeline is divided into multiple independent branches (first branch for inhalation, second branch for exhalation, third branch for condensed water discharge) with a flow guide component that segments the flow paths. This segmentation allows exhaled air to be directed away from the breathing machine while condensed water is channeled separately to the discharge branch, eliminating the need for a check valve and ensuring smooth exhalation.
2Reliability
If a diaphragm type check valve is used to prevent condensed water backflow, then components are protected from erosion, but the diaphragm ages and damages after long-time use increasing use risk
Solution Approach 1:
The diaphragm check valve is completely removed from the system. Instead of using a check valve that requires a diaphragm, the patent employs a flow guide component with strategically positioned flow guide surfaces that passively direct condensed water into the discharge branch through flow direction control, eliminating the diaphragm and its associated aging and damage risks.
3Reliability
If a diaphragm type check valve is used to prevent condensed water backflow, then components are protected from erosion, but the cost of the breathing machine increases
Solution Approach 1:
The functions of condensed water separation, flow direction control, and discharge are merged into a single flow guide component integrated within the pipeline structure. This eliminates the need for a separate check valve assembly, reducing device complexity and cost while maintaining effective protection against condensed water backflow.
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 pipeline structure effectively prevents condensed water from entering the breathing machine, ensuring a smooth exhalation process, reducing the risk of component erosion, and lowering operational costs by eliminating the need for additional check valves.
Implementation Method 1
The flow guide component is configured to guide an air of the first branch to the third branch and discharge the air through the third air port
Implementation Method 2
the air entering the air suction branch contacts a pipe wall with a lower temperature, water vapor in the air flow is condensed into condensed water on the pipe wall
Data Source
AI summary
The present disclosure provides a pipeline structure configured to prevent backflow of condensed water and a breathing machine. The pipeline structure includes a first branch, a second branch, a third branch, and a flow guide component. A first end of the first branch is a first air port. A second end of the first branch is a first communicating port. A first end of the second branch is a second air port. A second end of the second branch is communicated with the first communicating port. A first end of the third branch is a third air port. A second end of the third branch is communicated with the first communicating port. The flow guide component directly faces the first communicating port. The flow guide component is configured to guide an air of the first branch to the third branch and discharge the air through the third air port.