Paper Sheet Humidifying Roller Control for Overflow-Free Water Supply
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Solution Overview
Problem
Existing paper sheet humidifying devices face issues with uneven humidification due to inaccurate water supply systems and the accumulation of foreign substances, leading to potential water overflow and clogging, which can result in non-homogeneous water application and paper sheet damage.
Innovation Solution
A paper sheet humidifying device equipped with a water supply system that includes a water supply plate with overflow ejection, a drain tank with a water level sensor, and a controller to prevent overflow by stopping water feeding and activating auxiliary drainage mechanisms, ensuring consistent water levels and preventing foreign substance accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If water supply is continuous to maintain constant water level, then humidification consistency is improved, but foreign substances accumulate in the water
Solution Approach 1:
The system automatically discards accumulated water containing foreign substances through overflow drainage, and recovers clean water supply by continuously replenishing fresh water to the water supply plate, thus maintaining both humidification consistency and water cleanliness
Solution Approach 2:
The system changes the water supply mode from completely closed circulation to a semi-open system with controlled overflow and replenishment, adjusting the water level and flow parameters to balance humidification consistency with foreign substance removal
2Object-generated harmful factors
If water overflow drainage is provided to remove foreign substances, then water cleanliness is improved, but water may flow out uncontrollably when drain pipe clogs
Solution Approach 1:
The system prepares emergency drainage paths and control mechanisms in advance that activate when the primary drain pipe clogs, preventing uncontrolled water overflow by providing alternative drainage routes or overflow protection
Solution Approach 2:
The water level sensor provides continuous feedback on the water level in the drain tank, enabling the control system to detect abnormal water accumulation and adjust the water supply or activate alternative drainage measures before uncontrolled overflow occurs
3Reliability
If water level in drain tank is monitored to prevent overflow, then water control reliability is improved, but system complexity increases
Solution Approach 1:
The water level sensor and control system enable the drain tank to self-regulate its water level by automatically stopping water supply when the level reaches the preset threshold, eliminating the need for complex manual control mechanisms
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 ensures uniform water application, prevents water overflow, and maintains the integrity of the paper sheet by addressing the issues of uneven humidification and foreign substance accumulation, thereby improving the overall performance of the humidifying process.
Implementation Method 1
a water supply roller to supply water to the humidifying roller; a water supply plate to contain the water for dipping the water supply roller
Implementation Method 2
a water level sensor to output a signal when a water level in the drain tank reaches a prescribed level
Implementation Method 3
a humidifying roller to convey a paper sheet and apply water to the paper sheet
Data Source
AI summary
A paper sheet humidifying device including a humidifying roller to convey a paper sheet and apply water to the paper sheet; a water supply roller to supply water to the humidifying roller; a water supply plate to contain the water for dipping the water supply roller, and to eject excessive water by overflowing; a water feeding section to feed the water to the water supply plate; a drain tank to receive the water ejected from the water supply plate, the drain tank comprising a drain outlet to eject the received water; a water level sensor to output a signal when a water level in the drain tank reaches a prescribed level; and a controller to execute a control to prevent overflowing of the water from the drain tank based on the signal from the water level sensor.