Ultra Fine Bubble Generator Cooling Cycle
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Solution Overview
Problem
Conventional ultra fine bubble (UFB) manufacturing apparatuses face instability in long-time operations due to heat generation, which leads to the formation of air bubbles instead of UFBs, causing inhibition of bubbling and unit failure.
Innovation Solution
A manufacturing apparatus with an ultra fine bubble generating unit, circulation path, blocking unit, and control unit that alternates between driving the generating unit and circulating the liquid, allowing for efficient removal of air bubbles and stable UFB generation by controlling the circulation and blocking of the path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the ultra fine bubble generating unit is continuously driven to maintain high UFB generation, then the productivity is improved, but the temperature increases causing air bubbles to form instead of UFBs
Solution Approach 1:
The system implements periodic operation by alternating between a UFB generation period (first mode) where the generating unit is driven and a cooling period (second mode) where the generating unit is stopped and the circulating unit operates. This periodic switching prevents continuous heat accumulation while maintaining overall productivity, resolving the contradiction between sustained UFB generation and temperature control.
2Productivity
If the ultra fine bubble generating unit operates for long time to maintain high UFB concentration, then the productivity is improved, but air bubbles accumulate in the circulation path causing unstable operation
Solution Approach 1:
The control unit implements periodic switching between first mode (UFB generation with blocking unit open) and second mode (cooling and air bubble removal with blocking unit closed). During the second mode, air bubbles that have accumulated in the circulation path are removed, preventing operational instability. This periodic action maintains both high UFB concentration and reliable continuous operation.
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 solution enables stable long-time operation of UFB generation, maintaining high concentration and preventing air bubble interference, resulting in a consistent output of several hundred million to several billion bubbles per milliliter.
Implementation Method 1
a film ebullition is generated on a liquid by a heater
Data Source
AI summary
A manufacturing apparatus for an ultra fine bubble containing liquid includes an ultra fine bubble generating unit to generate ultra fine bubbles in a liquid, a circulation path, a circulating unit, a blocking unit, and a control unit. The ultra fine bubble generating unit, the circulating unit, and the blocking unit are in the circulation path and the circulating unit circulates the liquid through the circulation path. The blocking unit switches between closing and opening of the circulation path. The control unit controls the ultra fine bubble generating unit, the circulating unit, and the blocking unit and alternately executes a first mode in which, with the blocking unit open, the ultra fine bubble generating unit is driven while the circulating unit is being driven, and a second mode in which, with the blocking unit closed and the ultra fine bubble generating unit stopped, the circulating unit is driven.