AIR DIFFUSING SYSTEM COMPRISING AIR DIFFUSING DEVICE AND OPERATING METHOD THEREOF

WIPO Patent Application WO/2018/043379

A1

Provided is an air diffusing system that can stably aerate a large aquaculture pond. Provided is an air diffusing system comprising an air diffusing device used in an aquaculture pond that is for aquatic life and that has a depth of 1-3 m and an area (A1) of at least 500 m2, wherein: the air diffusing device has a blower installed outside the aquaculture pond, an air diffusing part submerged in the aquaculture pond, and a first blast tube that connects between the blower and the air diffusing part; the air diffusing part has 3-12 air diffusers and 3 or more second blast tubes that connect between the 3-12 air diffusers; one of the three or more second blast tubes of the air diffusing part is connected to the blower via the first blast tube; the blower can be adjusted so as to have a blasting flow rate falling within a range of 6-40 m3/h at a connection between said second blast tube and the first blast tube; the air diffusing part is polygonal in planar shape; the air diffusing part has an occupied area (an area based on when enclosed only by the second blast tube) (A2) of 10-150 m2; and the air diffusers are capable of forming foam in an area of 200-800 cm2 per single air diffuser.

JP2531897	[Name of device] Filtration device for aquarium fish
JP2001078619	BUBBLE GENERATOR

NAKATSUKA SHUJI (JP)
HIRAKAWA KEIICHIRO (JP)

PCT/JP2017/030693

March 08, 2018

August 28, 2017

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DAICEN MEMBRANE SYSTEMS LTD (JP)

A01K63/04; B01F3/04; C02F3/20

US6478964B1	2002-11-12
JP2002320995A	2002-11-05
JPH01265838A	1989-10-23

FURUYA Satoshi (JP)

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