1
Aquaponics 2 metre Air Lift Pump
Aquaponics 2 metre Air Lift Pump
DATE: 2015/02/13::
2
introduction to airlift pump
introduction to airlift pump
DATE: 2013/09/15::
3
air lift water pump PT2 (theory and fabrication)
air lift water pump PT2 (theory and fabrication)
DATE: 2014/08/04::
4
Airlift Pump Systems for Aquaponics, Aquaculture and Home
Airlift Pump Systems for Aquaponics, Aquaculture and Home
DATE: 2013/08/12::
5
AquaLab: Ex 06 airlift principles lesson
AquaLab: Ex 06 airlift principles lesson
DATE: 2009/09/22::
6
Ben & Glenn Aquazen air lift pump Aquaponics.Club
Ben & Glenn Aquazen air lift pump Aquaponics.Club
DATE: 2014/08/14::
7
Buoyancy Hydro - Amazing Airlift pump tests.mov
Buoyancy Hydro - Amazing Airlift pump tests.mov
DATE: 2010/06/19::
8
Aquaponics Airlift Pump
Aquaponics Airlift Pump
DATE: 2014/03/29::
9
Brumbert Airlift Water Pump
Brumbert Airlift Water Pump
DATE: 2010/07/07::
10
Low Power Airlift Geyser Pumps - Part 1 of 3
Low Power Airlift Geyser Pumps - Part 1 of 3
DATE: 2013/11/11::
11
AquaZen Airlift Pump
AquaZen Airlift Pump
DATE: 2013/08/18::
12
Cleaning out my well with a home built air-lift pump
Cleaning out my well with a home built air-lift pump
DATE: 2012/10/04::
13
airlift pump / geyser pump hybrid
airlift pump / geyser pump hybrid
DATE: 2013/03/09::
14
Olomana Gardens Educational Air Lift Pump Display
Olomana Gardens Educational Air Lift Pump Display
DATE: 2013/05/27::
15
Airlift Pump Construction
Airlift Pump Construction
DATE: 2014/12/11::
16
How To Hydroponics - S02E21 Air Lift & Pulser Pumps
How To Hydroponics - S02E21 Air Lift & Pulser Pumps
DATE: 2011/06/14::
17
How to make my high lift/submergence ratio airlift pump.  Lets rewrite the textbooks!
How to make my high lift/submergence ratio airlift pump. Lets rewrite the textbooks!
DATE: 2014/01/05::
18
Prototype of my airlift pump design (geyser pump with ball check valve aka pneumatic ejector pump)
Prototype of my airlift pump design (geyser pump with ball check valve aka pneumatic ejector pump)
DATE: 2015/01/27::
19
AquaLab: Ex 06 Airlift pump experiment demo
AquaLab: Ex 06 Airlift pump experiment demo
DATE: 2009/09/23::
20
Airlift Pump Water Trap & Collector for Aquaculture & Aquaponics
Airlift Pump Water Trap & Collector for Aquaculture & Aquaponics
DATE: 2014/06/09::
21
Buffalo Air lift Pump pumping sand and pea gravel (rock)
Buffalo Air lift Pump pumping sand and pea gravel (rock)
DATE: 2009/08/05::
22
Air lift Pump - lung test.mp4
Air lift Pump - lung test.mp4
DATE: 2010/04/08::
23
How-To Make A Simple Air Lift Pump
How-To Make A Simple Air Lift Pump
DATE: 2013/12/24::
24
Air Lift Pump (Laboratory model)
Air Lift Pump (Laboratory model)
DATE: 2012/09/22::
25
Air lift pump
Air lift pump
DATE: 2015/03/12::
26
airlift test
airlift test
DATE: 2008/03/31::
27
Nano Airlift Pump Challenge!  BEAT THIS to be Champion!  And World record holder!
Nano Airlift Pump Challenge! BEAT THIS to be Champion! And World record holder!
DATE: 2011/04/07::
28
Tromp and airlift pump, time for their return?
Tromp and airlift pump, time for their return?
DATE: 2010/01/19::
29
Airlift pump
Airlift pump
DATE: 2013/06/11::
30
Airlift Water Pump by Natural Current - Pool Pond Filter Pump System
Airlift Water Pump by Natural Current - Pool Pond Filter Pump System
DATE: 2014/11/17::
31
Air Lift Pump Approx. 2.5 gallon per minute
Air Lift Pump Approx. 2.5 gallon per minute
DATE: 2010/05/07::
32
Solar power: Airlift pump fountains.  Not as hard to make as you might think!
Solar power: Airlift pump fountains. Not as hard to make as you might think!
DATE: 2014/06/14::
33
Clear aquarium aquaponics, moving water with air lift pump
Clear aquarium aquaponics, moving water with air lift pump
DATE: 2014/01/29::
34
Air lift pump combination with a 12v water pump.
Air lift pump combination with a 12v water pump.
DATE: 2014/02/06::
35
My low power airlift pump design (geyser pump with check valve aka pneumatic ejector pump)
My low power airlift pump design (geyser pump with check valve aka pneumatic ejector pump)
DATE: 2015/02/07::
36
airlift pump diy
airlift pump diy
DATE: 2014/03/24::
37
How To Make Your Own Air Lift Pump - Aquaponic GreenHouse  With Fish
How To Make Your Own Air Lift Pump - Aquaponic GreenHouse With Fish
DATE: 2013/12/23::
38
Geyser Pump
Geyser Pump
DATE: 2013/08/08::
39
Air Lift Pump - 2012 09 01
Air Lift Pump - 2012 09 01
DATE: 2012/09/01::
40
Air lift water pump - how it works
Air lift water pump - how it works
DATE: 2012/12/03::
41
2 inch air lift pump 24 gpm...Organic Mike.com
2 inch air lift pump 24 gpm...Organic Mike.com
DATE: 2011/04/14::
42
Aqua-zen airlift pump for aqua-ponic system, (one-day) at Amara
Aqua-zen airlift pump for aqua-ponic system, (one-day) at Amara's Tiki-school, Pattaya Thailand
DATE: 2013/10/12::
43
Strawberry tower with airlift pump and Vermiponics
Strawberry tower with airlift pump and Vermiponics
DATE: 2011/11/10::
44
Solar aquaculture  project update - air lift pump
Solar aquaculture project update - air lift pump
DATE: 2012/11/18::
45
Airlift pump without electricity
Airlift pump without electricity
DATE: 2015/01/25::
46
airlift pump
airlift pump
DATE: 2014/10/14::
47
Axial flow pump vs Air lift pump
Axial flow pump vs Air lift pump
DATE: 2012/01/16::
48
How to fix your airlift pump when your chair is not staying up
How to fix your airlift pump when your chair is not staying up
DATE: 2014/12/24::
49
Airlift pump
Airlift pump
DATE: 2014/12/03::
50
Demonstration of the Pipe in a Pipe Air Lift Pump in Action
Demonstration of the Pipe in a Pipe Air Lift Pump in Action
DATE: 2014/10/03::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Diagram of an airlift pump
An airlift pump, powered by compressed air, raises fluid by entraining gas to reduce its density. 1. Air supply. 2. Liquid supply. 3. Air inlet port. 4. Air supply line. 5. Air port. 6. Air outlet. 7. Fluid intake. 8. Riser tube. 9. Air liquid mixture. 10. Pump outlet. L:Liquid, usually wastewater. LL:Liquid level. V:Vessel G:Gravel or solids.

An Airlift pump is a pump that has low suction and moderate discharge of liquid and entrained solids. The pump injects compressed air at the bottom of the discharge pipe which is immersed in the liquid. The compressed air mixes with the liquid causing the air-water mixture to be less dense than the rest of the liquid around it and therefore is displaced upwards through the discharge pipe by the surrounding liquid of higher density. Solids may be entrained in the flow and if small enough to fit through the pipe, will be discharged with the rest of the flow at a shallower depth or above the surface. Airlift pumps are widely used in Aquaculture to pump, circulate and aerate water in closed, recirculating systems and ponds.[1] Other applications include dredging, underwater archaeology, salvage operations and collection of scientific specimens.

Principle[edit]

The only energy required is provided by compressed air.[citation needed] This air is usually compressed by a compressor or a blower. The air is injected in the lower part of a pipe that transports a liquid. By buoyancy the air, which has a lower density than the liquid, rises quickly. By fluid pressure, the liquid is taken in the ascendant air flow and moves in the same direction as the air. The calculation of the volume flow of the liquid is possible thanks to the physics of two-phase flow.


Utilization[edit]

Airlift pumps are often used in deep dirty wells where sand would quickly abrade mechanical parts. (The compressor is on the surface and no mechanical parts are needed in the well). However airlift wells must be much deeper than the water table to allow for submergence. Air is generally pumped at least as deep under the water as the water is to be lifted. (If the water table is 50 ft below, the air should be pumped 100 feet deep).

It is also sometimes used in part of the process on a wastewater treatment plant if a small head is required (typically around 1 foot head).


Airlifts are used to collect fauna samples from sediment.[2] Airlifts can oversample zooplankton and meiofauna but undersample animals that exhibit an escape response.[2]

Inventor[edit]

The first airlift pump is considered to be invented by the German engineer Carl Emanuel Löscher (de), who lived in the second part of the eighteenth century. He discovered the airlift pump in 1797.

Advantages and disadvantages[edit]

The following paragraph exposes the advantages and disadvantages of the airlift pump compared to other pumping techniques.

Advantages[edit]

  • The pump is very reliable. The very simple principle is a clear advantage. Only air with a higher pressure than the liquid is required.
  • The liquid is not in contact with any mechanical elements. Therefore, neither the pump can be abraded (which is important for sandwater wells), nor the contents in the pipe (which is important for archeological research in the sea).
  • Act as a water aerator and can in some configurations lift stagnant bottom water to the surface (of water tanks).
  • Since there are no restrictive pump parts, solids up to 70% of the pipe diameter can be reliably pumped.

Disadvantages[edit]

  • cost: while in some specific case the operational cost can be interesting, most of the time, the quantity of air to compress is high compared to the liquid flow required.[3] · [4] · .
  • Conventional airlift pumps have a flow rate that is very limited. The pump is either on or off. It is very difficult to get a wide range of proportional flow control by varying the volume of compressed air. This is a dramatic disadvantage in some parts of a small wastewater treatment plant, such as the aerator.[5]
  • The suction is limited.
  • This pumping system is suitable only if the head is relatively low. If you want to obtain a high head, you have to choose a conventional pumping system.
  • Because of the principle, a lot of air remains in the liquid. In certain case, this can be problematic, as, for example, in a waste water treatment plant, before an anaerobic basin.

Design improvements[edit]

Diagram of a geyser pump
A geyser pump, an improved airlift pump, powered by compressed air, raises fluid by forcing rising bubbles to displace fluid. 50. Air supply. 52. Air inlet port. 58. Liquid supply. 60,62. air supply lines. 64. upper end of air tank 86. 66,82. Air ports. 70. Upper air inlet of u-shaped elbow 74. 76 Air outlet. 84. Fluid intake. 65. Riser tube. 88. Displaced liquid. 90. Pump outlet. L:Liquid, usually wastewater. LL:Liquid level. VVV:Vessel G:Gravel or solids

A recent (2007) variant called the "geyser pump" can pump with greater suction and less air. It also pumps proportionally to the air flow, permitting use in processes that require varying controlled flows. It arranges to store up the air, and release it in large bubbles that seal to the lift pipe, raising slugs of fluid.[6]

See also[edit]

Notes and references[edit]

  1. ^ http://www.airlift.eu/
  2. ^ a b Cahoon, LB; Lindquist, DG; Clavijo, IE; Tronzo, CR (1992). "Sampling small invertebrates at the sediment-water interface". In: Cahoon, LB. (ed.) Proceedings of the American Academy of Underwater Sciences Twelfth Annual Scientific Diving Symposium "Diving for Science 1992". Held September 24–27, 1992 at the University of North Carolina at Wilmington, Wilmington, NC. American Academy of Underwater Sciences. Retrieved 2013-04-05. 
  3. ^ air quantity calculation PDF (1.86 MB)
  4. ^ airlift basic calculation - dead link, 15 April 2013 Template:Xls
  5. ^ New Pump Technology May Improve Small Flows, WVU NCSFC Clearinghouse Accessed 2011-3-21
  6. ^ Patent Application number: 11/654,448, January 17, 2007, Inventor: Masao Kondo
Wikipedia content is licensed under the GFDL License
Powered by YouTube
MASHPEDIA
LEGAL
  • Mashpedia © 2015