Heating Device Blower Control for Drying Efficiency
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Solution Overview
Problem
Existing heating devices for drying media face a trade-off between preventing medium damage and maintaining drying efficiency, as reducing the heating element's output to avoid damage leads to decreased temperature and evaporation rates, affecting the type of medium used.
Innovation Solution
A heating device with a blower that adjusts wind speed based on the medium type, maintaining constant heating element output while controlling surface temperature to prevent damage and enhance evaporation, incorporating a gas circulation path to improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the output of the heating element is decreased to suppress medium damage, then medium damage is suppressed, but the temperature of the processing surface decreases and drying efficiency decreases
Solution Approach 1:
The invention changes the controlling parameter from heating element output to blower driving amount. By maintaining constant heating output and adjusting only the blower speed (wind speed parameter), the system achieves different processing surface temperatures suitable for different medium types without sacrificing drying efficiency
Solution Approach 2:
The invention uses the blower to create gas flow (wind speed) that directly affects heat transfer to the processing surface. By controlling gas flow dynamics rather than thermal output, the system can precisely control surface temperature while maintaining high heating efficiency for rapid evaporation
2Temperature
If the wind speed of gas is increased to control processing surface temperature, then medium damage is suppressed, but liquid evaporation is accelerated and drying efficiency is maintained
Solution Approach 1:
The invention exploits the dual effect of wind speed: it controls processing surface temperature (preventing medium damage) while simultaneously accelerating liquid evaporation (maintaining drying efficiency). By adjusting this single parameter, both contradictory requirements are satisfied
Solution Approach 2:
The control unit adjusts the blower driving amount based on medium type to achieve the appropriate processing surface temperature. The system incorporates feedback control where the relationship between blower output, wind speed, and surface temperature is continuously optimized to prevent medium damage while maintaining drying efficiency
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 approach effectively suppresses medium damage and maintains drying efficiency by adjusting wind speed according to medium type and liquid amount, ensuring optimal evaporation rates without compromising productivity.
Implementation Method 1
The processing surface of the medium is heated by the heating element
Implementation Method 2
a blower configured to blow gas to a heating region between the heating element and the processing surface
Implementation Method 3
a liquid evaporation amount decreases, thus decreasing the drying efficiency
Data Source
AI summary
A heating device configured to heat a medium on which a liquid for printing is impinged includes a heating element configured to face a processing surface, the processing surface being a surface on which the liquid is impinged, a blower configured to blow gas to a heating region between the heating element and the processing surface from the heating element side of the medium, and a control unit configured to control an output of the heating element and a driving amount of the blower. The control unit changes the driving amount of the blower in accordance with a type of the medium while maintaining the output of the heating element constant regardless of the type of the medium. The decrease in the drying efficiency of the medium is suppressed.