Aeration device in water

• Main Authors: YOSHIDA HIDETO, NAKANISHI KOSUKE
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2024
• Subjects: CHEMISTRY; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

An underwater aeration device is provided with: an air passage which is provided above a pump chamber and into which air flows; a suction port which is provided on the lower side of the pump chamber and into which a liquid flows; an impeller that causes air to flow in from the ventilation path and causes liquid to flow in from the suction port; and a discharge path that discharges the air and the liquid to the outside. The impeller includes: a main plate portion covering a connection port between the ventilation path and the pump chamber; and a vane portion protruding downward from the lower surface of the main plate portion on the suction inlet side, the main plate portion being provided with a cutout portion that connects the ventilation path and the pump chamber, and a recessed groove portion that is recessed from the upper surface toward the lower surface of the main plate portion and extends from the inner peripheral side to the outer peripheral side of the main plate portion. 一种水中曝气装置，具备：通气路径，设置在泵室的上方侧，