The process pump is a centrifugal pump which is used in chemical processes, e.g. in oil refineries and the petrochemical industry (see Refinery pump). Its design is generally of the back pull-out type. Like chemical pumps, process pumps are used for handling aggressive chemical fluids.
What is the working principle of pump?
A Pump is generally used to induce flow or raise the pressure of a liquid. Centrifugal pumps are a category of Dynamic pumps. The working principle of centrifugal pumps involves imparting energy to the liquid by means of a centrifugal force developed by the rotation of an impeller that has several blades or vanes.
What are the 4 types of pumps?
Types of Pumps
- 1). Centrifugal Pumps. These types of pumps are most commonly used worldwide.
- 2). Vertical Centrifugal Pumps.
- 3). Horizontal Centrifugal Pumps.
- 4). Submersible Pumps.
- 5). Fire Hydrant Systems.
- 1). Diaphragm Pumps.
- 2). Gear Pumps.
- 3). Peristaltic Pumps.
What are the 2 main classification of pumps?
Pumps are divided into 2 major categories: Dynamic and Positive Displacement (aka Displacement).
What is priming in pump?
What is pump priming? Priming simply means preparing or getting something ready for operation. For a centrifugal pump to work properly, you need to fill it up with water.The pump will resume operation once the air is removed.
What is the type of pump?
Positive Displacement Pumps
| SUB-TYPE | EXAMPLES |
|---|---|
| Reciprocating Pump | Bladder Diaphragm Peristaltic Piston / plunger |
| Rotary Pump | Gear Screw Progressing cavity Rotary lobe Rotary vane |
What do you mean by impeller?
An impeller or impellor is a rotor used to increase the pressure and flow of a fluid. It is the opposite of a turbine, which extracts energy from, and reduces the pressure of, a flowing fluid.
What is centrifugal pump with diagram?
Centrifugal Pump is a type of rotodynamic pump in which the flow through the pump is induced by the centrifugal force imparted to the liquid by rotation of the impeller.
What is cavitation in pump?
Cavitation occurs when the liquid in a pump turns to a vapor at low pressure. It occurs because there is not enough pressure at the suction end of the pump, or insufficient Net Positive Suction Head available (NPSHa). When cavitation takes place, air bubbles are created at low pressure.
What is pump head?
Put simply, head is the height at which a pump can raise fluid up and is measured in metres or feet. We use it when specifying centrifugal pumps because their pumping characteristics tend to be independent of the fluid’s specific gravity, often referred to as relative density.
What are the applications of pumps?
Applications of pumps
- Pumping water from the wells.
- Aquarium and pond filtering.
- Water cooling and fuel injection in automobiles.
- Pumping oil or gas and operating cooling towers in energy industry.
- They also have their uses in waste water recycling, pulp and paper, chemical industry etc.
What is NPSH pump?
The difference between inlet pressure and the lowest pressure level inside the pump is called NPSH: Net Positive Suction Head. In the first part of the pump, the pressure decreases before it increases on the discharge side to a level higher than the intake pressure.
What causes corrosion in a pump?
Corrosion in pumps results from chemical reactions between the pumped fluid and exposed metal surfaces.In terms of the chemistry, corrosion is the result of metals being oxidised. Iron, for example, will readily corrode in the presence of air and moisture to form iron oxide (rust).
What is monoblock pump?
A Monoblock Pump is a mechanical device in which a common shaft contains the rotating parts.Mono means single, as its name suggests Monoblock Horizontal Multistage Pump is a non-self-priming centrifugal pump. This means that the Pump unit is rigidly connected i.e. attached with long shaft electric motor.
What is pumping system?
They are used to pump liquids up the tubing and allow gas production to flow up the casing. Gas lift, plunger lift, and surfactant lift all produce gas and liquids up the tubing but pumping systems take mostly liquid up the tubing and gas is separated to casing production.
What are the parts of a pump?
The main components in a pump are the casing, impeller, backing plate, shaft and shaft seal, and the motor adapter. Some pumps have the backing plate as part of the casing in which case you would have a removable cover. The shaft seals are a critical part of the pump and selecting the right seal is an important step.
What is pump set?
noun. A complete pumping installation, comprising a pump, a source of power, and any necessary pipes, valves, filters, etc.
What is difference between propeller and impeller?
A propeller is a type of fan that propels fluid by pushing against it, converting rotational force into a linear motion. An impeller is a type of rotor that is typically part of a pump and creates a sucking force, i.e. drawing liquid into a vehicle or engine.
What means Pulsator?
: something that beats or throbs in working.
What is impeller and its types?
The impeller is the rotating component within the centrifugal pump design, which transfers the energy from the pump’s motor to the fluid.There are several types of impeller, each of which offer different performance characteristics that make it more or less suitable than the others for a particular application.
What is pump curve?
A pump performance curve indicates how a pump will perform in regards to pressure head and flow. A curve is defined for a specific operating speed (rpm) and a specific inlet/outlet diameter.The curve also shows the shut off head or the head that the pump would generate if operating against a closed valve.
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