FINE BUBBLE GENERATION NOZZLE

• Main Author: HIROSE KIYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; NOZZLES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

To provide a fine bubble generation nozzle for largely enhancing a generation quantity of fine bubbles of a micro level and a nano level.SOLUTION: The present invention is by a fine bubble generation nozzle 1 having a nozzle body 10 forming a bottomed cylindrical shape and discharging a gas-liquid mixed body L from a derivation port 21 bored in this bottom part 11, a core 40 arranged in the nozzle body and having a flow passage on an outer surface for turning the gas-liquid mixed body flowing in the nozzle body, a recessed part 49 provided in a bottom part 47 of the core opposed to the bottom part of the nozzle body and a shear part 60 for generating a fine bubble by shearing the gas-liquid mixed body discharged from the derivation port of the nozzle body. Since negative pressure is generated in a place provided with the recessed part, a turbulent flow is generated in the gas-liquid mixed body, so that the content of the bubble is enhanced. The fine bubble generated by shearing such gas-liquid mixed body includes much of the fine bubble of a micro level and a nano level.SELECTED DRAWING: Figure 1 【課題】マイクロレベルおよびナノレベルの微細気泡の生成量を大幅に高める微細気泡発生ノズルを提供する。【解決手段】有底筒状を成し、この底部１１に穿設された導出口２１から気液混合体Ｌを吐出するノズル本体１０と、ノズル本体内に配置され、ノズル本体内を流れる気液混合体を旋回させるための流路を外面に有する中子４０と、ノズル本体の底部に対向する中子の底部４７に設けられる凹部４９と、ノズル本体の導出口から吐出された気液混合体をせん断することにより微細気泡を生成するせん断部６０とを備える微細気泡発生ノズル１による。凹部が設けられた箇所には負圧が生じるので、気液混合体には乱流が生じるため、気泡の含有量が高められる。このような気液混合体をせん断することにより生成された微細気泡は、マイクロレベルおよびナノレベルの微細気泡を多く含むものとなる。【選択図】図１