rotating pump training
TRANSCRIPT
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Pump Types
PUMP
Dynamic Pump Displacement pump
Centrifugal Pump
And
Special effect pump
Reciprocating pump
And
Rotary pump
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Positive Displacement pump
Plunger pump
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Gear Pump (Positive Displacement pump)
Gear Pump (For Oil or Diesel)
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Centrifugal pump Detail
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Centrifugal force
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Pump Diagram
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Sectional view of centrifugal pump
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Impeller Types
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Impeller material
Impeller are generally made of
Bronze
Polycarbonate
Cast iron
Stainless steel
Other material (According to the usage)
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Sleeve
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Mechanical Seal
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Mechanical seal
Parts classification
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Mechanical seal types
Different type of mechanical seal
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Mechanical seal Classification
By Arrangement
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Mechanical Seal Classification
By design
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Pump components
Stationary component( Casing, Gland, pump body)
Rotating component
(Shaft and Impeller)
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Centrifugal pump and working principle
It convert the energy of prime mover in to velocity orkinetic energy and then in to pressure energy of fluid.
Centrifugal pumps in J10 plant
Cooling water pumps- 3nos
BFW pumps- 2nos
Process condensate pump- 2nos
Condensate extraction pump- 2nos
Neutralisation pit pump- 2nos
Waste water pit pump- 2nos
De-min plant pumps
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Select ion of Pump Capacity
Capacity is the flow rate with which liquid is moved orpushed by the pump to the desired point in the
process. Its commonly measured in either gallons
per minute (gpm) or cubic meters per hour (m3/hr)
SELECT CAPACITY BY FEW FACTORS
Process liquid density
Size of the pump and its inlet and outlet sections.
Impeller size
Speed RPM
Size & shape of cavities between vanes
Suction and discharge temp & pressure
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Important Pump Terms
Static suction head hs
Static discharge head hd
Friction head hf
Total suction Head Hs
Total discharge head Hd
Net Positive suction head required NPSHr
Net Positive suction head available NPSHa
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Definitions :
Head:Centrifugal pump curves show PRESSURE as head.
Which is the equivalent height of the water with SG=1
this makes allowance for specific gravity variations in
the pressure to head conversion to cater for higher
power requirements.
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Static Head
The vertical height difference from surface of water
source to centreline of impeller is termed as static
suction head or suction lift.
The vertical height difference from centreline ofimpeller to discharge point is termed as discharge
static head.
The vertical height difference from surface of water
source to discharge point is termed as TOTALSTATIC HEAD
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Total Dynamic head:
Total height difference (total static head) plus frictionlosses & Demand pressure from nozzles
(Total suction head + Total discharge head=Total
dynamic head)
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NPSH
Nett positive suction head - related to how muchsuction lift a pump can achieve by creating a partial
vacuum. atmospheric pressure then pushes liquid in
to the pump. A method of calculating if the pump will
work or not.
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Cavitation:
As liquid moves into a pump, there is a pressure drop
due to the effects of the entrance, friction in the suction
piping, etc.
if the pressure drops below the vapor pressure of the
fluid being moved, the liquid may vaporize.
The bubbles implode, creating shockwaves that can
pit and erode the equipment.
This phenomena is called cavitation and can severely
damage the pump.
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Pump Curve
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Energy Saving Options:
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In case of Trouble shooting:
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In case of Trouble shooting:
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In case trouble shooting:
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Formula for to calculate FLOW in GPM
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Formula for to find HEAD in ft:
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Formula for NPSH:
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BRAKE HORSE POWER CALCULATION:
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WATER HORSE POWER CALCULATION:
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EFFICIENCY CALCULATION:
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Sample Pump Service report:
About BFW pump P-5601-2
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J10 Plant BFW PUMP P-5601