Glass Manufacturing Support Structure for Thermal Expansion

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Solution Overview

Problem

Glass manufacturing apparatuses face premature component failure due to stress accumulation from thermal expansion, especially when increasing throughput requires higher operating temperatures, leading to reduced service life.

Innovation Solution

The glass manufacturing apparatus incorporates a support structure that allows relative movement between the stir chamber base and delivery vessel during thermal expansion, using sliding joints and spring assemblies to counteract gravitational loads and facilitate vertical expansion, thereby reducing stress accumulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If higher operating temperatures are used to increase throughput, then molten glass flow is improved, but stress accumulation in components increases leading to reduced service life

Engineering Contradiction:
ImprovethroughputVSAvoidservice life
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The support structure incorporates movable connections that allow dynamic adjustment of the stir chamber position relative to the delivery vessel, enabling the system to adapt to thermal expansion and contraction of components during operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the physical state of the support structure from rigid to flexible through the use of movable connections and spring assemblies, allowing it to accommodate dimensional changes in components due to temperature variations

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If components are fixed rigidly to prevent movement, then structural stability is maintained, but thermal expansion stresses cause premature failure

Engineering Contradiction:
Improvestructural stabilityVSAvoidcomponent durability
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The support structure is divided into separate components (stir chamber support, delivery vessel support) connected by movable joints, allowing each segment to expand independently while maintaining overall structural integrity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure transitions from a static rigid connection to a dynamic movable connection system that can adapt to thermal expansion, preventing stress accumulation while maintaining stability

Inventive Principle:
Principle #15Dynamics

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 extends the service life of glass manufacturing apparatus components by alleviating stress and strain caused by thermal expansion, ensuring continuous operation and preventing potential leaks and failures.

Implementation Method 1

facilitate vertical expansion of the delivery vessel away from the reference point upon heating

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

a support system comprising one or more spring assemblies extending between the delivery vessel and a support structure attached to the reference point

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentUS20240190748A1Support structures for accommodating thermal expansion and glass manufacturing apparatuses comprising the same
Publication Date: 2024.06.13 CORNING INC
  • US20240190748A1 patent drawing
  • US20240190748A1 patent drawing
  • US20240190748A1 patent drawing

AI summary

A glass manufacturing apparatus includes a stir chamber disposed on a base. The stir chamber includes an entry port attached to a first connector tube, a chamber conduit, and an elbow conduit. The apparatus also includes a second connector tube connected to the elbow conduit to deliver molten glass therefrom. At least a portion of the second connector tube extends at least partially upward in the vertical direction. The apparatus also includes a delivery vessel connected to the second connector tube. One of the base or the delivery vessel is attached to a reference point that is fixed in the vertical direction. The other one of the base or the delivery vessel is movable in response to thermal expansion of the second connector tube, which is independent of thermal expansion of the other one of the base or the delivery vessel.