Float Bath Heater Shielding for Thermal Interference Control
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Solution Overview
Problem
Existing float glass manufacturing methods face challenges in precise temperature control within the float bath due to heat transfer interference between heaters, leading to suboptimal glass quality and increased production costs and time.
Innovation Solution
A float bath design incorporating a plurality of heaters with shields between them to block heat transfer, allowing for adjustable length and angle, and a temperature measuring unit for precise control of heat quantities across different zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple heaters are provided to supply different heat quantities to different control zones, then temperature control capability is improved, but heat transfer interference between adjacent heaters makes precise temperature control difficult
Solution Approach 1:
A heat shield is introduced as an intermediary element positioned between adjacent heaters. The heat shield blocks direct heat transfer between neighboring heaters, preventing thermal interference. This allows each heater to independently control its designated zone without being affected by adjacent heaters, thereby achieving precise temperature control across multiple control zones while maintaining a relatively simple heater arrangement.
2Manufacturing precision
If heat shields are added between heaters to block heat transfer, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
Heat shields are selectively positioned only between specific adjacent heaters where thermal interference occurs, rather than uniformly throughout the entire float bath. This localized application of heat shields addresses the specific problem of heat transfer interference in critical areas while minimizing the overall increase in device complexity. The shields are designed with appropriate dimensions and positioning to block heat transfer only where needed.
3Adaptability or versatility
If the float bath is divided into multiple control zones with different heat quantities, then temperature gradient control is improved, but heat transfer from adjacent zones causes control difficulty
Solution Approach 1:
Heat shields serve as mediators that isolate thermal fields between adjacent control zones. By blocking radiant heat transfer between zones with different temperature requirements, the shields ensure that each control zone maintains its designated temperature profile independently. This prevents thermal coupling between zones, thereby improving temperature control stability while preserving the ability to create diverse temperature gradients across different regions of the float bath.
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 solution enables effective temperature control within the float bath, reducing thermal interference and improving glass quality and production efficiency by allowing differential heat supply to specific areas, thereby enhancing yield and reducing costs.
Implementation Method 1
a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath
Implementation Method 2
a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween
Data Source
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AI summary
Disclosed is a float bath which allows easy temperature control according to an internal position, and a glass manufacturing apparatus and glass manufacturing method including the float bath. The float bath includes a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath, and a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween.