Water aeration apparatus

• US 4,828,696 A
• Filed: 04/02/1987
• Issued: 05/09/1989
• Est. Priority Date: 04/23/1984
• Status: Expired due to Fees

• Current Assignee: Kaiyo Kogyo Kabushiki Kaisha
• Original Assignee: Kaiyo Kogyo Kabushiki Kaisha
• Inventors: Makino, Masahiko, Makino, Hisao
• Primary Examiner(s): Wyse, Tom
• Application Number:
  US07/033,464
• Time in Patent Office: 768 Days
• Field of Search: 210/170, 210/220, 261/77, 261/124
• US Class Current: 210/220
• CPC Class Codes: B01F 23/23105 Arrangement or manipulation of the gas bubbling devices
• CPC Class Codes: B01F 23/232311 the conduits being vertical draft pipes with a lower intake end and an upper exit end
• CPC Class Codes: B01F 35/32015 Flow driven
• CPC Class Codes: B01F 35/3203 Gas driven
• CPC Class Codes: B01F 35/71 Feed mechanisms with proportioning B01F35/80
• CPC Class Codes: B01F 35/712 for feeding fluids
• CPC Class Codes: B01F 35/71801 using a syphon to create a suction of a component
• CPC Class Codes: B01F 35/71805 using valves, gates, orifices or openings
• CPC Class Codes: C02F 3/223 using "air-lift"
• CPC Class Codes: C02F 7/00 Aeration of stretches of water
• CPC Class Codes: Y02W 10/10 Biological treatment of water, waste water, or sewage

Abstract

A water aeration apparatus is used for aeration purposes in the water-filled areas such as dams, impounded water or reservoirs, and lakes and marshes, and includes a tubular casing and supply chamber that causes large quantities of water to be exposed to the flotation action of air supplies under pressure, thus raising the water up to the surface. The apparatus may be used for water purification, or for anti-freezing purposes particularly in cold climate regions. The apparatus includes a collective tubular casing and a multiple-partitioned or common air supply chamber below the casing, the tubular casing including a plurality of tubular air and water passages formed by dividing the interior of the casing into several longitudinal passages by combining individual tubes together.

Claims

1. A water circulation apparatus comprising:

a tubular casing having a plurality of tubular passages extending along the entire length of said tubular casing and said plurality of tubular passages being open at each end thereof; and

means for forming large intermittent air masses which pass through said tubular passages when said tubular casing is erected in a body of water, said means including an air supply chamber disposed at one end of said tubular casing, said air supply chamber being divided into a first air receiving space and a second air receiving space, said first air receiving space being in fluid communication with said tubular passages and with said second air receiving space, said second air receiving space adapted to receive air from an external air supply source and having an opening for fluid communication with a body of water to be circulated;

whereby air supplied to said second air receiving space intermittently accumulates in said first and second air receiving spaces until an air mass having a predetermined volume is formed, at which point the air mass is in fluid communication with said tubular passages and passes through said tubular passages in a bullet shape to effect a lifting action on water above the air mass and a suction action on water located below the air mass to pump up water through said tubular passages.

2. The water circulation apparatus of claim 1, wherein said tubular passages extend in a longitudinal direction with downstream ends thereof in fluid communication with said air supply chamber.

3. The water circulation apparatus of claim 1, wherein said first and second air receiving spaces are each partitioned into a plurality of air supply compartments, each of said plurality of air supply compartments of said first air receiving space being in fluid communication with both a respective one of said tubular passages and a respective one of said plurality of air supply compartments of said second air receiving space.

4. The water circulation apparatus of claim 1, wherein said air supply chamber includes an outer jacket disposed around an outer peripheral wall of said tubular casing, said outer peripheral wall of said tubular casing having at least one opening therethrough for fluid communication of said tubular passages with said first air receiving space.