FIRE HYDRALICS AND FIRE LOSS CONTROL

LESSON 1 PUMP

INTRODUCTION

PUMP

BASIC REQUIREMENT OF PUMP:

a) RELIABLE

b) PORTABLE

c) SUCTION

d) SUBJECTING WATER TO PRESSURE

e) DELIVERY

MAIN PARTS OF PUMP:

a) GENERATOR PART

b) SHAFT

c) PUMP ASSEMBLY

TYPES OF PUMPS:

a) DISPLACEMENT PUMP

i. RECIPROCATING PUMP

ii. DIAPHRAGM PUMP’

THE RECIPROCATING PUMP ARE FURTHUR CLASSIFIED AS:

i. FORCE PUMP

ii. LIFT PUMP

iii. BUCKET AND PLUNGER PUMP

iv. ROTARY PUMP

B. CENTRIFUGAL PUMP

i. CONVENTIONAL CENTRIFUGAL PUMP

ii. SELF PRIMING CENTRIFUGAL PUMP

iii. AIR OPERATED PUMP

DISPLACEMENT PUMP

RECIPROCATING PUMP

DIAPHRAGM PUMP

CENTRIFUGAL PUMP

SELF PRIMING PUMP

SUBMERSIBLE PUMP

AIR LIFT PUMP

VANE TYPE PUMP

BEFORE STARTING PUMP: THE FOLLOWING POINTS ARE TO BE ENSURED BEFORE STARTING THE PUMP

a) PUMP IS TO BE KEPT CLOSE TO THE WATER ON STRONG BASE.

b) CHECK FOR FUEL AND OIL LEVEL IN CASE OF ENGINE DRIVEN AND CORRECT ELECTRIC SUPPLY FOR MOTOR DRIVEN

c) KINKS AND BENDS IN HOSE ARE TO BE REMOVED

d) STRAINER SHOUYLD SUBMERGE IN WATER PROPERLY

e) PRIMING IS TO BE DONE IF REQUIRED

f) CHECK AND LOOK AT GAUGES

g) START THE PUMP AND OBSERVE FOR ABNORMAL SOUND IF ANY

REASONS FOR PRIMING FAILURE

a) DEFECTIVE GLAND PACKING

b) CHOCKED STRAINER

c) DEFECT IN PUMP CASING

d) STRAINER NOT SUBMERGED IN LIQUID

e) PUMP FILLER OR DRAIN PLUG IS LOOSE

f) FACULTY JOINTS IN SUCTION LINE

CAVITATION

BOOSTER PUMPS

JOCKEY PUMP

DISCHARGE OF WATER: THE DISCHARGE OF WATER WILL DEPEND ON FOLLOWING FACTORS

a) PRESSURE OF THE PUMP

b) FLOW THROUGH PIPE

c) THE VOLUME OF THE IMPELLER CASING

d) THE ROTATION AND DESIGN OF THE IMPELLER

e) BRAKE POWER

f) SUCTION DEPTH AND DISCHARGE HEIGHT

g) THE TEMPERATURE AND VISCOSITY OF THE LIQUID

h) CONDITION OF SUCTION AND DISCHARGE HOSES

i) CONDITION OF STRAINER

SUCTION LIFT

DISCHARGE HEIGHTS

LESSON 2 – FLOW OF WATER

INTRODUCTION

ENERGY: THE LIQUID IS ALWAYS HAVING ENERGY IN IT. THE WATER WILL HAVE FOLLOWING ENERGY

a) POTENTIALENERGY

b) PRESSURE ENERGY

c) KINETIC ENERGY

POTENTIAL ENERGY

PRESSURE ENERGY

KINETIC ENERGY

BERNOULLIS PRINCIPLE

TOTAL ENERGY

ENERGY LOSS:

a) LOSS DUE TO FRICTION OF THE WALL

b) LOSS AT THE ENTRANCE OF PIPE

c) LOSS AT THE EXIT POINT OF PIPE

d) LOSS DUE TO CHANGE IN SIZE OF THE PIPE

e) LOSS DUE TO VARIOUS PIPE FITTINGS

f) LOSS DUE TO TURNS AND CURVES

g) LOSS DUE TO BLOCKAGES AND POOR MAINTENANCE

PARALLEL PIPES: PARALLEL PIPES ARE USED FOR MOVEMENT OF LARGE QUANTITY OF WATER OVER LONG DISTANCE. THIS REDUCVES ENERGY LOSS AND EASY FOR MAINTENANACE

LAWS OF FLUID FRICTION: THE FLUID IN MOTION IS SUBJECTED TO CERTAIN BASIC

FRICTIONAL LAWS

a) THE FRICTONAL RESISTANCE IS PROPOTIONAL TO THE VELOCITY.

b) THE FRICTIONAL RESISTANCE IS INDEPENDENT OF THE PRESSURE.

c) THE FRICTIONAL RESISTANCE IS PROPOTIONAL TO THE SURFACE

AREA.

d) THE RESISTANCE VARIES WITH TEMPERATURE AND VISCOCITY OF LIQUID.

e) THE FRICITON IS INDEPENDENT OF THE NATURE (SMOOTHNESS) OF SURFACE.

f) THE FRICTION IS PROPOTIONAL TO THE DENSITY PF THE LIQUID

CRITICAL VELOCITY

FLOW OF WATER: THE WATER FLOW VARIES IN PIPE DUE TO TYPE OF PUMP , PIPE AND FRICTION . THE TYPES OF PIPE CAN BE CHARACTERISED AS FOLLOWS:

a) STEADY AND UNSTEADY FLOW

b) UNIFORM FLOW

c) LAMINAR FLOW AND TURBULENT FLOW

d) ROTATIONAL FLOW

e) COMPRESSIBLE FLOW

STEADY AND UNSTEADY FLOW:

UNIFORM FLOW:

LAMINAR FLOW:

TURBULENT FLOW:

ROTATIONAL FLOW:

COMPRESSIBLE FLOW;

WATER HAMMERING:

a) THE SPEED AT WHICH VALUE IS CLOSED

b) THE VELOCITY OF FLOW

c) THE LENGTH AND DIAMETER OF THE PIPE

d) THE ELASTIC PROPERTY OF THE MATERIAL OF PIPE

e) THE RATE AND EFFICIENCY OF PUMP

SURGE TANK:

RESERVOIRE CONNECTING PIPES:

COURSES:

Diploma in occupational Health And Safety

Diploma in industrial safety

Diploma in electrical safety

Diploma in fire fighting

Diploma in construction safety

Certificate in fire and safety engineering

Diploma in fire and safety engineering

PG diploma in fire and safety engineering

Certificate in oil and Gas safety

Diploma in oil and Gas safety

Diploma in health ,safety and Environment

PG diploma in Health ,safety Environment

JOB PLACEMENT

NSA will give100% job placement assistance to all successful candidates. Some of the Industries are listed below.

Oil Refineries,

Port trust,Airport,Chemical Industries,Insurance,Construction andservice industries are main job providers.

Students passed out from this institute can find job opportunities as Safety Supervisor, Safety Inspector, Safety Officer, Safety Manager, Fireman and Fire Officer.

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