Flat Cover Plate Infrared Scattering for Uniform Heating
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Solution Overview
Problem
Conventional infrared ray heat source devices suffer from non-uniform infrared intensity distribution due to excessive scattering of infrared rays, leading to inefficient heating of objects, as the arc-shaped mesh structures cause scattered rays to be less concentrated in specific directions.
Innovation Solution
A combustion device design featuring a flat cover plate and an infrared reflective plate with a reflective structure that reflects infrared rays back onto the infrared ray generation mesh, ensuring uniform scattering of infrared rays in the same direction, enhancing the infrared intensity received by objects per unit area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an arc-shaped mesh structure is used to generate infrared rays, then infrared rays can penetrate objects and heat both surface and interior, but the infrared rays are scattered in too many directions resulting in non-uniform infrared intensity distribution
Solution Approach 1:
The front cover is divided into multiple scattering units, each with multiple scattering holes. This segmentation allows control over the scattering direction of infrared rays while maintaining the ability to penetrate and heat objects uniformly. The plurality of scattering holes in each unit creates multiple scattering paths that collectively achieve uniform infrared intensity distribution.
Solution Approach 2:
Different regions of the front cover have different distributions of scattering holes. The first, second, and third scattering units have different hole arrangements to control the scattering directions of infrared rays from different heat source regions. This local differentiation ensures that infrared rays are scattered uniformly across the target surface rather than concentrating in one direction.
2Area of stationary object
If infrared rays are scattered in multiple directions to increase coverage area, then more surface area can be heated, but the infrared intensity per unit area decreases resulting in inefficient heating
Solution Approach 1:
The patent transitions from a two-dimensional scattering problem to a three-dimensional solution by using multiple scattering units with varying hole distributions in different spatial arrangements. This allows infrared rays to be scattered across a wider area while maintaining intensity through the vertical arrangement and selective positioning of scattering holes in different units.
Solution Approach 2:
The scattering holes in different scattering units have different parameters including hole size, hole distribution density, and angular orientation. By varying these parameters across different units, the system optimizes both the coverage area and the infrared intensity per unit area, achieving efficient heating across the entire target surface.
3Stability of the object's composition
If a flat cover plate is used instead of arc-shaped mesh, then infrared rays can be scattered more uniformly in the same direction, but the structural complexity increases
Solution Approach 1:
The front cover serves multiple functions: it acts as a protective cover, an infrared scattering structure, and a structural support element. By integrating the scattering function into the cover plate itself through strategically positioned holes, the patent eliminates the need for separate scattering components, thereby reducing overall device complexity while achieving uniform infrared scattering.
Solution Approach 2:
The front cover is designed with a porous structure containing multiple scattering holes distributed across different units. This porous design allows infrared rays to pass through and scatter uniformly while maintaining the structural integrity and rigidity of the cover plate, achieving both scattering uniformity and structural simplicity.
Data Source
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AI summary
A combustion device (100) includes at least one burner (30), a supporting assembly (10), and an infrared ray generation mesh (20). The at least one burner (30) includes a flame outlet (32); the front cover (12) of the supporting assembly (10) includes a flat cover plate (121) which has a plurality of holes (124); the infrared ray generation mesh (20) which is disposed on the supporting assembly (10) is corresponding to the flame outlet (32); the flames generated by the flame outlet (32) heat the infrared ray generation mesh (20) and the cover plate (121). The intensity of heating can be effectively increased by generating open fire and infrared rays and uniformly heating could be realized as well.