FINE BUBBLE GENERATING APPARATUS

• Main Author: TSUJI HIDEYASU
• Format: Patent
• Language: English
• Published: 13.11.2008
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLEANING; CLEANING IN GENERAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PREVENTION OF FOULING IN GENERAL; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide an apparatus efficiently generating fine bubbles on a nano level. SOLUTION: This apparatus has a gas swirling shearing device 14 having a cylindrical member 40, a fluid introduction hole 48 provided near one end wall member 44 of the cylindrical member and supplying a gas-liquid mixed fluid into a fluid swirling chamber 46 in the cylindrical member 40, and a fluid delivery hole 50 provided in the end wall member. The inner peripheral face of the cylindrical member is subjected to mirror finish. A plurality of annular grooves 56 provided with spaces to each other in the axial direction of the inner peripheral face with a width and a depth of 1 mm or less, are provided on the part of the inner peripheral face facing in the circumferential direction to the fluid introduction hole opened on the inner peripheral face of the cylindrical member. COPYRIGHT: (C)2009,JPO&INPIT