Twin Screw Pumps As A Type Of Multiphase Pumping Technologies
Pumps are used for moving fluids, such as liquids, slurries, or gases. Three major groups of this are the displacement, direct lift, and gravity pumps. Positive displacement transfers fluid by trapping a fixed amount of it then displacing that amount into the discharge pipe.
Gravity pumps are referred to as hydraulic rams. These work by getting water from under grounds and raising it to higher places but in lower elevations. Multiphase pumping technologies have features and types namely the helicoaxial, progressive cavity, twin screw pumps, buffer tanks, and electric submersibles. Multiphase production benefits include smaller and simpler installation, production rate increase, and lower cost of equipment.
A helicoaxial is also called as centrifugal. Centrifugal is used by transporting fluids through converting rotational kinetic energy into hydrodynamic energy. The rotational energy comes from the electric motor, and the fluid will then enter the impeller which is near the rotating axis, and the impeller is going to accelerate it, flowing outwards.
A twin screw is made up of two screws that pushes the fluid movement which is being pumped. Pumping conditions like having a high volume of gas or fluctuated inlet conditions are commonly used. Four mechanical seals are needed to seal these two shafts.
Progressive cavity is a type of positive displacement. It is used by progress of the sequence of small, fixed shape, and discrete cavities, as the rotor is being turned. This can also act as a motor or a mud motor when the solution is pushed through its interior. One application for this is well drilling.
An electric submersible has a motor which is sealed hermetically and that is close coupled to a pump. Its construction is been submerged to the pumped fluid. One advantage of submersibles is that it can prevent cavities, a common problem between the difference of fluid surface and pump. Submersibles pump the liquids to the surface, while the jets pull the liquids, so it is more efficient to use submersibles.
Buffer tanks Cobourg ON are installed upstream of suction nozzle in case of a slug flow. This will break the energy of the liquid slug, will smoothen any fluctuations of incoming flows, and will act as a sand trap. Pumps are usually rated by horsepower, flow rate, outlet pressure of head, and inlet suction of head. Simplification of head is done as the number of feet the pump can raise or lower a column of water in atmospheric pressure.
Cast iron, stainless steel, and other materials are commonly used in pumps. Materials that will be used will be dependent on how it is to be applied. Water industries in pharma application uses stainless steel because it provides better result, and this is because of its high temperature.
So by the name itself, multiphase have many variations of services and conditions like changing composition of liquid processes, temperature variations, operating high and low pressures, and exposure to abrasive or erosive media. So the challenge for this is to look for appropriate arrangement of mechanical seal and support system to ensure effectiveness and also to ensure quality as well.
Gravity pumps are referred to as hydraulic rams. These work by getting water from under grounds and raising it to higher places but in lower elevations. Multiphase pumping technologies have features and types namely the helicoaxial, progressive cavity, twin screw pumps, buffer tanks, and electric submersibles. Multiphase production benefits include smaller and simpler installation, production rate increase, and lower cost of equipment.
A helicoaxial is also called as centrifugal. Centrifugal is used by transporting fluids through converting rotational kinetic energy into hydrodynamic energy. The rotational energy comes from the electric motor, and the fluid will then enter the impeller which is near the rotating axis, and the impeller is going to accelerate it, flowing outwards.
A twin screw is made up of two screws that pushes the fluid movement which is being pumped. Pumping conditions like having a high volume of gas or fluctuated inlet conditions are commonly used. Four mechanical seals are needed to seal these two shafts.
Progressive cavity is a type of positive displacement. It is used by progress of the sequence of small, fixed shape, and discrete cavities, as the rotor is being turned. This can also act as a motor or a mud motor when the solution is pushed through its interior. One application for this is well drilling.
An electric submersible has a motor which is sealed hermetically and that is close coupled to a pump. Its construction is been submerged to the pumped fluid. One advantage of submersibles is that it can prevent cavities, a common problem between the difference of fluid surface and pump. Submersibles pump the liquids to the surface, while the jets pull the liquids, so it is more efficient to use submersibles.
Buffer tanks Cobourg ON are installed upstream of suction nozzle in case of a slug flow. This will break the energy of the liquid slug, will smoothen any fluctuations of incoming flows, and will act as a sand trap. Pumps are usually rated by horsepower, flow rate, outlet pressure of head, and inlet suction of head. Simplification of head is done as the number of feet the pump can raise or lower a column of water in atmospheric pressure.
Cast iron, stainless steel, and other materials are commonly used in pumps. Materials that will be used will be dependent on how it is to be applied. Water industries in pharma application uses stainless steel because it provides better result, and this is because of its high temperature.
So by the name itself, multiphase have many variations of services and conditions like changing composition of liquid processes, temperature variations, operating high and low pressures, and exposure to abrasive or erosive media. So the challenge for this is to look for appropriate arrangement of mechanical seal and support system to ensure effectiveness and also to ensure quality as well.
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