Liquid Supply Apparatus for Direct Nanobubble Generation
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Solution Overview
Problem
Conventional ultrafine bubble generating apparatuses face difficulties in incorporating gas into liquid when the liquid is directly taken from a flow path, especially when the pressure of the liquid is positive, making it challenging to generate ultrafine bubbles effectively.
Innovation Solution
A liquid supply facility is designed with a flow path and an ultrafine bubble generating apparatus that includes a liquid discharger and a gas incorporating device. The liquid discharger takes in liquid directly from the flow path, and the gas incorporating device pressurizes and incorporates gas into the liquid on the downstream side, ensuring proper gas incorporation even with positive liquid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquid is taken directly from flow path with positive pressure, then flow rate is improved, but gas incorporation becomes difficult
Solution Approach 1:
The system performs preliminary action by creating a low-pressure zone upstream of the liquid discharger through the flow path configuration, allowing gas to be incorporated into the liquid before the liquid enters the discharger. This preliminary gas incorporation enables the liquid to maintain high flow rate while still achieving reliable gas dissolution.
2Reliability
If storage tank is used, then gas incorporation is improved, but device complexity and space increase
Solution Approach 1:
The invention extracts and eliminates the storage tank from the conventional system configuration. Instead of using a storage tank to facilitate gas incorporation, the patent achieves the same function through a direct flow path design with optimized pressure distribution, thereby reducing device complexity and space requirements while maintaining reliable gas incorporation.
3Productivity
If conventional ultrafine bubble generating apparatus is used, then ultrafine bubble generation is achieved, but gas incorporation is difficult with positive liquid pressure
Solution Approach 1:
The system changes the pressure parameters by creating a low-pressure zone upstream of the liquid discharger, allowing gas to be incorporated at lower pressure conditions. This parameter change enables conventional ultrafine bubble generating apparatus to achieve both high productivity in bubble generation and ease of gas incorporation, resolving the contradiction between these two functions.
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 configuration allows for efficient generation and supply of ultrafine bubble-containing liquid directly from the flow path, enhancing the flow rate and concentration of ultrafine bubbles, while avoiding the need for a storage tank and reducing equipment space.
Implementation Method 1
a gas incorporating device pressurizing gas and incorporating the gas into liquid discharged from the liquid discharger
Implementation Method 2
an ultrafine bubble generator generating ultrafine bubbles in liquid by allowing liquid having gas incorporated therein to pass through an inside of the ultrafine bubble generator
Data Source
AI summary
Provided is a liquid supply apparatus which is capable of directly taking in a liquid from a flow channel and appropriately mixing a gas into the liquid when generating-nanobubbles in the liquid using an ultrafine bubble generating apparatus. The liquid supply apparatus comprises a flow channel for a liquid supplied from a liquid supply source and an ultrafine bubble generating apparatus for generating nanobubbles in the liquid. The ultrafine bubble generating apparatus is provided with: a liquid ejector for ejecting the liquid taken in from the flow channel; a gas mixer for pressurizing and mixing a gas into the liquid ejected from the liquid ejector; and a nanobubble-generating nozzle for generating nanobubbles in the liquid by passing the liquid with intermixed gas therethrough. The pressure of the liquid in the flow channel flowing into the liquid ejector from the upstream-side of the liquid ejector is a positive pressure and, between the liquid ejector and the-nanobubble-generating nozzle, the gas mixer pressurizes and mixes the gas into the liquid, which is flowing in a pressurized state toward the nanobubble-generating nozzle.