Rotary Filling Valve Segmentation for Pressure Balancing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Filling machines require significant energy to overcome the filling pressure when opening, adjusting, and closing the flow valve, which is undesirable and particularly problematic in rotary-type systems with limited electrical power and heat dissipation issues.
Innovation Solution
A filling element with a liquid valve arrangement comprising a flow valve and a separate stop valve, where the stop valve only controls the flow start and stop, allowing the flow valve to regulate volumetric flow independently of the liquid pressure, using an electromagnetic positioning drive to minimize the energy required for valve operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single flow valve is used to control both flow start/stop and volumetric flow regulation, then the valve structure is simple, but the operating forces are high due to pressure dependence
Solution Approach 1:
The single valve is segmented into two separate valves: a stop valve for flow start/stop control and a flow valve for volumetric flow regulation. This segmentation allows each valve to have optimized operating characteristics, with the flow valve experiencing balanced pressures on both sides during closed state, thereby reducing operating forces.
2Reliability
If high power positioning drive is used to overcome filling pressure, then valve operation reliability is improved, but heat dissipation becomes problematic in rotary filling systems
Solution Approach 1:
The patent converts the harmful effect of filling pressure into a beneficial pressure balancing arrangement. By designing the flow valve with pressure-balancing ports, the filling pressure acts equally on both sides of the valve disc during closed state, eliminating the need for high power positioning drives and thereby solving the heat dissipation problem in rotary filling systems.
3Reliability
If high current electromagnetic drive is used to close the flow valve against pressure, then valve closing reliability is improved, but electrical power consumption increases
Solution Approach 1:
The patent converts the harmful effect of filling pressure into a beneficial pressure balancing arrangement. By designing the flow valve with pressure-balancing ports, the filling pressure acts equally on both sides of the valve disc during closed state, eliminating the need for high power positioning drives and thereby solving the heat dissipation problem in rotary filling systems.
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
This configuration reduces the energy needed to open and close the flow valve, minimizing electrical current consumption and addressing the limitations of power availability and heat dissipation in rotary filling systems.
Implementation Method 1
When the flow valve is controlled by an electric positioning drive, and in particular by an electromagnetic positioning drive
Data Source
AI summary
A filling element for container filling includes a liquid-valve arrangement disposed in a liquid channel with its flow valve. A positioning drive regulates opening and closing of the flow valve so as to regulate flow of liquid through the liquid channel. A stop valve lies in the liquid channel between the flow valve and a dispensing opening.