Annular Cavity Heating Device for Uniform Component Temperature
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Solution Overview
Problem
Conventional air heating furnaces for large annular components suffer from waste in gas flow passage, increased power consumption, material inefficiency, warping due to non-uniform heating, transportation limitations, and health and safety risks associated with hot oil bathing methods.
Innovation Solution
A heating device with an annular cavity that concentrates gas flow near the component, reducing waste and material usage, and incorporates a guiding spiral rib structure to ensure uniform heating, using a gas flow heater and draught fan to enhance heat exchange efficiency and reduce manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional air heating furnace structure is used with large radial dimension, then heating capability is improved, but gas flow passage waste increases and material consumption increases
Solution Approach 1:
The patent extracts and eliminates the redundant central gas flow passage area from the conventional furnace structure. By removing the unnecessary central region, the design concentrates gas flow directly around the annular component, eliminating energy waste in the central area while maintaining effective heating capability.
Solution Approach 2:
The patent applies local quality by concentrating heating resources and gas flow specifically in the annular region where the component exists. The gas flow passage is designed to match the annular geometry, providing intensive heating where needed while avoiding unnecessary flow in the central empty space.
2Temperature
If conventional air heating furnace structure is used with large radial dimension, then heating capability is improved, but manufacturing material consumption increases
Solution Approach 1:
The patent removes the central portion from the furnace structure, extracting material from the unnecessary central region. This reduces overall material consumption while maintaining the heating capability through the optimized annular gas flow passage design.
Solution Approach 2:
The furnace structure is redesigned to provide material and heating capacity only where the annular component exists. The gas flow passage and heating elements are concentrated in the annular region, eliminating material waste in the central area while maintaining effective heating.
3Temperature
If conventional air heating furnace structure is used, then heating capability is improved, but power consumption increases
Solution Approach 1:
The patent extracts the unnecessary central gas flow passage, eliminating the energy required to move and heat air in the central region. This reduces overall power consumption while maintaining heating capability through the optimized annular flow path.
Solution Approach 2:
The gas flow and heating energy are concentrated locally in the annular region where the component is positioned. This localized approach reduces the total power required compared to heating the entire furnace volume, including the central empty space.
4Temperature
If conventional air heating furnace structure is used, then heating capability is improved, but device complexity increases
Solution Approach 1:
The patent simplifies the furnace structure by removing the central portion and its associated gas flow passage. This extraction reduces structural complexity while maintaining heating capability through the streamlined annular design.
Solution Approach 2:
The furnace structure is simplified by providing gas flow and heating only in the annular region where needed. This localized approach reduces the overall structural complexity compared to the conventional design that requires complex central and peripheral flow passages.
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
The solution reduces heat energy waste, decreases manufacturing costs, prevents warping, facilitates transportation, and eliminates health and safety risks, achieving efficient and uniform heating of large annular components.
Implementation Method 1
the gas flow heater heats the gas flow, and the draught fan enables the gas flow to enter into the gas flow inlet, pass through a gas flow passage in the annular cavity
Implementation Method 2
heating device taking gas as a heat exchanging medium to heat an annular component
Data Source
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AI summary
Disclosed is a heating device for an annular component (4). The device heats the annular component (4) by means of a hot airflow, and comprises an airflow heater (1) and a fan (2), and also comprises an annular cavity (3) which accommodates the annular component (4), wherein an outer wall of the annular cavity (3) is provided with an airflow inlet (301) and an airflow outlet (302), the airflow heater (1) heats the airflow, and the fan (2) passes the airflow into the airflow inlet (301), through an airflow passage in the annular cavity (3) and out of the airflow outlet (302).