Archive for August, 2009.
Aug 29
It is used in a water pumping station.
A submersible pump is a pump which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in the fluid to be pumped. The advantage of this type of pump is that it can provide a significant lifting force as it does not rely on external air pressure to lift the fluid.
ESP systems are effective for pumping produced fluids to surface.A system of mechanical seals are used to prevent the fluid being pumped entering the motor and causing a short circuit. The pump can either be connected to a pipe, flexible hose or lowered down guide rails or wires so that the pump sits on a "ducks foot" coupling, thereby connecting it to the delivery pipework.
Submersible pumps are found in many applications, single stage pumps are used for drainage, sewage pumping, general industrial pumping and slurry pumping. Multiple stage submersible pumps are typically lowered down a borehole and used for water abstraction or in water wells.
Submersible pumps are also used in oil wells. By increasing the pressure at the bottom of the well significantly, more oil can be produced from the well compared to natural production. This makes Electric Submersible Pumping (ESP) a form of "artificial lift" (as opposed to natural flow) along with Gas Lift, Beam Pumping, Plunger Lift and Progressive cavity pump. New varieties of ESP can include a water/oil separator which permits the water to be reinjected into the reservoir without the need to lift it to the surface.
The ESP system consists of a number of components that turn a staged series of centrifugal pumps to increase the pressure of the well fluid and push it to the surface. The energy to turn the pump comes from a high-voltage (3 to 5 kV) alternating-current source to drive a special motor that can work at high temperatures of up to 300 °F (150 °C) and high pressures of up to 5000 lb/in² (34 MPa), from deep wells of up to 12000 feet (3.7 km) deep with high energy requirements of up to about 1000 horsepower (750 kW). ESPs have dramatically lower efficiencies with significant fractions of gas, greater than about 10% volume at the pump intake. Given their high rotational speed of up to 4000 rpm (67 Hz) and tight clearances, they are not very tolerant of solids such as sand.
Special attention to the type of ESP is required when using certain types of liquids. ESP’s commonly used on board naval vessels cannot be used to dewater contaminated flooded spaces. These use a 440 volt A/C motor that operates a small centrifugal pump. It can also be used out of the water, taking suction with a 2-1/2 inch non-collapsible hose. The pumped liquid is circulated around the motor for cooling purposes. There is a possibility that the gasoline will leak into the pump causing a fire or destroying the pump. So hot water and flammable liquids should be avoided.
Aug 29
Assuming everything else is still working fine, it’s likely to be an issue of the fuel getting to the engine. Is the fuel pump working and is it wired correctly? Is there pressure in the system? I’d check those things first.
Aug 29
I need to replace a pressure pump and unbolted it and can not get it off.
I use a pickling fork a u shaped wedge tool with a strike end.
The keys are a harder steel than the crankshaft and often fret the crank. one solution over the years has been to use a silicone glue type product and literally glue the two parts together.
Because of the high rpm 3400 and pressure combined with water these things can be very difficult to separate.
some pumps will come with threaded ports on the ears to provide a means to separate the pump from the motor. Use caution as it is easy to break of the ears if too much for is use on the bolts.
drain all the oil from the pump before you start. Try the flat bar method above as some times you get lucky.
If that does not work you need to use the pickling fork and a mini sledge or very large hammer hit it form all four directions working around the shaft. sometimes a large wrench is needed as a block as the unit separates.
It often takes a huge amount of sweat time and force to separate these two.
Aug 29
I am looking to purchase one for a ~100 gallon pond and I would like it to be strong enough to make a small waterfall. Does anyone have any reccomendations on a brand?
How high is the waterfall and how many gallons per minute (gpm) do you need? If either of those answers are large, it will require an expensive pump and lots of solar panels to meet your head and flow requirements.
If you are trying to lift under 12′, and about 3gpm, the Shurflo pump might do it for you. It’s just over $100 for the pump, but then you’d need to buy the solar panel for around $500.
http://www.altestore.com/store/Solar-Water-Pumps/Surface-Pumps/Shurflo-Surface-Pumps/Shurflo-2088-443-144-12V-Std-Surface-Pump/p1088/
Some of the less expensive options you may find elsewhere may not have enough power to pump the water up for the waterfall, they may only have about 1′ or 2′ of head capability .
Aug 26
I don’t leave it on all the time. The submersible pump I need is 40 to 79 dollars. Bilge pumps are cheap.
Thanks.
I use a bilge pump to move water for my silk screening equipment. It is good for moving the water up a few feet of hose. Just don’t expect to attach a spray head to it. It just won’t have enough pressure.
Depending on how much you use it, it may not last forever, but at the price your not risking anything.
And speaking of risk, since it is 12 volt there is no risk of a shock.
Go for it.
Aug 26
The tank is for tropical fish, i can’t move it further away from the tv however it is approx 16ft away already.
maybe you should ask an electrician. is the plug for the tv in the same socket as the filter? if so move it.
Aug 26
every time i shut the engine off and leave it for a lil while i have to fill the res. where the high pressure pump mounts . it takes about 1.5 - 2 quarts. is there a check valve that is supposed to stop it from draining out ?
wow, thats not good.
it should retain a constant oil amount seeing as that drives your injectors. does the truck smoke a lot? If so, what color? does your oil pressure gage go up when your cranking the motor? Is it consuming a lot of oil?
Aug 26
Ash in a cooling water pit Heavy Duty Goodwin Submersible Slurry Pump - for more information please go to http://www.goodwingroup.com/pumps - The website is in Chinese, Portugese, Spanish and English
Duration : 0:1:24
Read the rest of this entry »
Technorati Tags: areia, ash, bjm, Bombas, Bombeamento, Cal, Carepa, centrifugal, Cinzas, coal, dewatering, dragagem, dredge, Duty, Esgotamento, Flygt, godwin, Goodwin, Gravel, grindex, grit, Hazelton, Heavy, Hippo, lagoon, Lama, Lime, manufacturers, Metso, mill, Mina, Mine, mining, Mud, pit, pond, Ponds, pump, pumping, pumps, Sala, sand, scale, silt, sludge, Slurry, Submersible, sump, Tailings, Thick, Toyo, weir
Aug 26
Johnson 9.9hp outboard running in test tank. New water pump installed.
Duration : 0:2:15
Read the rest of this entry »
Technorati Tags: 9.9hp, Boat, Evinrude, Gale, In, installed., Johnson, motor, new, OMC, outboard, pump, repair, running, tank, test, water
Aug 26
Inspección de carcasa y eje de Bomba, con todos sus componentes
Duration : 0:0:59
Read the rest of this entry »
Technorati Tags: 3410, BOMBA, gouds, pumps
