Removable Infrared Radiator Shields for Centrifuge Protection
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Solution Overview
Problem
Infrared radiators in centrifuges are exposed to mechanical damage and surface contamination during the centrifugal flooding process, leading to adhesive scattering and toxic smoke due to thermal decomposition, with existing shields offering no protection.
Innovation Solution
A shield with a window permeable to infrared radiation, made of materials like germanium or silicon, secured by frames or fasteners, providing easy dismounting and cleaning, and fixed to the centrifuge inner surface to protect the radiators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If infrared radiators are used for heating during centrifugal flooding, then heating efficiency is improved, but the radiators are exposed to mechanical damage and surface contamination from adhesive scattering
Solution Approach 1:
A shield is introduced as an intermediary component between the infrared radiator and the centrifuge chamber environment. The shield transmits infrared radiation to maintain heating efficiency while physically blocking adhesive scattering and mechanical damage from reaching the radiator surface.
Solution Approach 2:
The shield is designed as a separate, removable component that can be easily detached for cleaning and maintenance. This segmentation allows the radiator to be protected during operation while enabling access to the shield for cleaning when needed.
2Temperature
If the radiator surface temperature reaches about 750°C, then heating performance is improved, but adhesive thermal decomposition and toxic smoke production occur
Solution Approach 1:
The shield acts as a thermal intermediary that allows infrared radiation to pass through while blocking direct contact between the high-temperature radiator surface and the adhesive scattering in the chamber, preventing thermal decomposition and toxic smoke generation.
3Ease of repair
If the shield is made with fixing means for easy dismounting, then ease of cleaning is improved, but structural complexity increases
Solution Approach 1:
The shield is designed as a separable component with simple fixing means such as clips or snap-fit mechanisms. This segmentation allows the shield to be easily removed for cleaning without requiring complex disassembly procedures, balancing accessibility with structural integrity.
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 shield prevents adhesive deposition on the radiators, ensuring stable operation by transmitting radiation and allowing easy cleaning, maintaining mechanical and chemical stability under high temperatures.
Implementation Method 1
at least one window (1) permeable for infrared radiation
Implementation Method 2
The cover is made of a material such as silicon, germanium or glass which is permeable for the desired range of wavelengths but it is not permeable for other wavelength ranges
Implementation Method 3
infrared radiators along with shields for infrared radiators
Implementation Method 4
The chamber, along with the filtration modules prepared for flooding, is heated by, inter alia, blowing hot air or by infrared radiation
Implementation Method 5
Due to the centrifugal forces the liquid resin flows (is spin off) to the outer ends of the adhesive dispenser
Implementation Method 6
The adhesive, being in most cases a resin, when arrives onto the surface of IR radiators, where the temperature of the radiator surface reaches about 750° C., starts thermal decomposition and produces smoke
Data Source
AI summary
The invention concerns shields, in particular for an infrared radiator and a centrifuge comprising a seat for accommodating an element for centrifugation and infrared radiators along with shields for infrared radiators.A shield, in particular for an infrared radiator, comprising at least one window permeable for infrared radiation, preferably within the range of 1-150 μm, characterized in that it comprises fixing means configured for easy dismounting.A centrifuge comprising a seat for accommodating an element for centrifugation and infrared radiators, characterized in that between the infrared radiator and the centrifugation element a shield as described above is provided.