Furnace Wire Fixing Apparatus Insulator Segmentation
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Solution Overview
Problem
Existing furnace body heaters experience issues with furnace wire deformation and instability due to the design defects of the insulators, leading to ineffective fixation and increased risk of damage over time.
Innovation Solution
A fixing apparatus for the furnace wire is developed, comprising a plurality of fixing units with specific recess and protrusion structures that form a tight splice structure, ensuring stable fixation and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing insulator design with arc surface front end and penetration rod fixation is used, then the structure is simple and easy to manufacture, but the furnace wire cannot be fixed effectively and becomes loose over time due to thermal expansion and contraction
Solution Approach 1:
The insulator is divided into multiple segments: a body portion and a front end portion that can be separately formed and then assembled. This segmentation allows each part to be optimized independently - the body portion provides structural support while the front end portion with the groove structure provides effective wire fixation, resolving the contradiction between simple manufacturing and reliable fixation.
Solution Approach 2:
The groove structure is formed within the front end portion of the insulator, creating a nested configuration where the groove is embedded in the insulator body. This nested design provides effective wire fixation without adding external complex components, maintaining structural simplicity while improving reliability.
2Manufacturing precision
If the penetration rod is used for fixing the furnace wire, then the installation process is simple, but the deformation of the penetration rod causes deformation protrusion of the furnace wire and ineffective fixation
Solution Approach 1:
Instead of requiring the entire insulator to have high precision, the groove structure is localized to the front end portion where wire fixation is needed. This local quality approach concentrates precision requirements only where necessary for wire engagement, while the rest of the insulator can be manufactured with standard tolerances, balancing fixation precision with manufacturing ease.
3Stability of the object's composition
If the arc surface contact between insulators is used, then the assembly is simple to manufacture, but a gap is always present causing the insulator to tilt and the furnace wire to become loose
Solution Approach 1:
The groove structure is pre-formed in the front end portion of the insulator before assembly. This preliminary action ensures that when the insulator is assembled with others in the stack, the groove is already positioned to receive and secure the furnace wire, preventing tilt and maintaining stability without requiring complex interface structures between insulators.
Data Source
AI summary
The present application provides a fixing apparatus for a furnace wire of a furnace body heater, which is formed by assembling a plurality of fixing units. A structure of each of the fixing units includes: a front end structure and a tail end structure connected together. The front end structure is provided with a first recess and a second recess. The tail end structure is provided with a third recess and a fourth protrusion block. Two adjacent ones of the fixing units form a first splice structure, in the first splice structure, the fourth protrusion block of the fixing unit at the top is snap fitted in the third recess of the fixing unit at the bottom to achieve fixation. An opening of a first recess of the fixing unit at the bottom and an opening of a second recess of the fixing unit at the top are butt-jointed together.