Welding Fluid Mixing Control With Integrated Proportional Valves
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Solution Overview
Problem
Welding processes face challenges in managing fluid mixtures and flow rates, as existing systems require manual adjustment and external mixers, leading to inconsistent fluid compositions and increased complexity and cost.
Innovation Solution
Integration of electrically controllable proportional valves within the welding power supply to mix fluids from multiple reservoirs, allowing for automatic adjustment of flow rates and consistent mixture composition, eliminating the need for external mixers and pre-mixed reservoirs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual adjustment of flow rates is used, then device complexity is reduced, but manufacturing precision of fluid mixture composition deteriorates
Solution Approach 1:
The patent replaces manual mechanical adjustment of flow rates with an automated control system that uses sensors to detect fluid composition and a controller to adjust valve positions, thereby maintaining consistent fluid mixture composition without requiring manual intervention.
Solution Approach 2:
The patent implements a feedback control system where sensors continuously monitor the composition of the fluid mixture and provide signals to a controller, which then adjusts the flow rates of individual fluids to maintain the desired composition, ensuring manufacturing precision.
2Manufacturing precision
If external mixers are used, then manufacturing precision of fluid mixture is improved, but device complexity increases
Solution Approach 1:
The patent merges the fluid mixing function directly into the existing fluid delivery system by integrating control valves and sensors within the same apparatus, eliminating the need for separate external mixers while maintaining mixing precision.
Solution Approach 2:
The patent makes the fluid delivery system multi-functional by enabling it to both deliver fluids and automatically control their mixing ratios through integrated sensors and valves, thereby eliminating the need for dedicated external mixing equipment.
3Ease of operation
If pre-mixed reservoirs are used, then ease of operation is improved, but adaptability deteriorates
Solution Approach 1:
The patent implements a dynamic control system that can automatically adjust flow rates in real-time based on detected composition variations, allowing the system to adapt to changing conditions while maintaining ease of operation through automated control.
Solution Approach 2:
The patent enables automatic adjustment of flow rate parameters to maintain desired fluid mixture composition, providing both ease of operation through automation and adaptability to varying welding conditions by dynamically changing flow parameters.
4Adaptability or versatility
If multiple fluid reservoirs are connected, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-regulating control system that automatically detects and compensates for composition variations from multiple fluid reservoirs, managing the complexity of multiple sources through automated monitoring and adjustment without requiring additional manual control mechanisms.
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
Enables easy and precise control of fluid mixtures and flow rates, reducing operational burdens and costs, while ensuring consistent welding performance by integrating mixing capabilities within the welding power supply.
Implementation Method 1
a proportional valve having a valve passage interposed in the fluid path between the fluid inlet and fluid outlet, the proportional valve having a plunger configured to adjustably restrict the valve passage via a plurality of steady state plunger positions
Data Source
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AI summary
Methods and apparatus are disclosed relating to mixing fluids in welding-type equipment. In some examples, a welding-type power supply (and/or wire feeder) may include multiple fluid paths through which to provide fluid from multiple fluid reservoirs to multiple welding-type tools (106a, 106b). The power supply may be configured to automatically control fluid flow rates through the fluid paths via proportional valves (204a, 204b). Further, the welding-type power supply may be configured to allow and/or prohibit mixing of fluids from different flow paths via control of various valves (156, 206).