Float Ball Gas Control Valve for Sealed Venting in Liquid Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air release valves in liquid piping systems struggle to efficiently manage gas release and intake during filling and draining processes, particularly in applications where maintaining a sealed environment is crucial, such as medical devices like dialysis machines.
Innovation Solution
A gas control valve with a float ball mechanism and flow directing features that allows gas to escape during filling and enter during draining, using a float ball that remains seated until submerged and a seal that forms when liquid reaches a certain level, ensuring a passive and reliable gas management system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional air release valve is used to allow gas escape during filling, then gas venting function is achieved, but the valve cannot maintain a sealed environment when not in use
Solution Approach 1:
The valve employs a float ball that dynamically responds to liquid level changes, automatically transitioning between open and closed positions. When liquid enters the valve chamber, the float ball rises to seal the opening; when liquid drains, the float ball falls to allow gas escape, enabling the valve to adapt its sealing state based on operational conditions
Solution Approach 2:
The valve operates autonomously using the liquid's own weight and buoyancy forces to actuate the float ball mechanism, eliminating the need for external control systems. The valve self-regulates gas release and sealing based on the filling and draining states of the liquid container
2Reliability
If a float ball mechanism is added to control sealing, then sealed environment is maintained, but device complexity increases
Solution Approach 1:
The invention replaces complex electrical or mechanical actuation systems with a simple passive float ball mechanism that uses natural buoyancy and gravity. This mechanical substitution eliminates the need for sensors, actuators, or control circuits while achieving reliable automatic sealing and gas release functionality
Solution Approach 2:
The valve incorporates a diaphragm that flexes in response to pressure changes and float ball movement, providing a simple yet effective sealing mechanism. The diaphragm's flexibility allows it to conform to the sealing surface and maintain the sealed environment without requiring complex valve components
3Productivity
If flow directing features are added to the seat, then fluid flow efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The float ball's spherical geometry naturally directs fluid flow around it, eliminating the need for complex flow directing features on the seat. The curved surface of the float ball creates smooth flow paths that reduce turbulence and improve fluid efficiency while being simple to manufacture
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 valve effectively manages gas release and intake without electrical actuation, preventing vacuum formation and ensuring smooth fluid transitions, suitable for applications requiring biocompatible materials and precise fluid control.
Implementation Method 1
when liquid enters the valve chamber and reaches a particular level within the valve chamber, the float ball is configured to float on the liquid
Data Source
AI summary
A valve (104) includes: a valve body (200) having a valve chamber (204), a seat (226) formed by an interior surface of the valve body, and one or more flow directing features (228, 230) formed about the seat; a float ball (224) disposed within the valve chamber, wherein the one or more flow directing features formed about the seat are configured to allow fluid flow therethrough when the float ball is seated at the seat; and a seal (216) disposed within the valve body, wherein when liquid enters the valve chamber and reaches a particular level within the valve chamber, the float ball is configured to float on the liquid until it reaches the seal, thereby scaling the valve chamber.