Agitator LATEST

August 30, 2017 | Author: HARIPRASAD | Category: N/A
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Short Description

AGITAION...

Description

LIQUID (PROCESS FLUID) PROPERTIES : Viscosity (u) Density (S) Liquid Level Height (H) Tank Area (Sq. Mtrs) Tank Volume (Cu. Mtrs.)

1000 cp 1 gm/cc 1.2 0.00 Sq. Mtr. 0 Cu. Mtr.

MATERIAL : SS 304, SS 316, SS 304L, SS 316L & M.S. YIELD STRESS (Fy) SHEAR STRESS (Fs) YOUNG's MODULUS (E)

1

14.5 3.143 345000

CALCULATED CONSUMED HORSE POW CALCULATED MOTOR HORSE POWER

D N

Dia of Impeller in Mtrs. Reqd. Speed rpm in Mtrs.

S

Specific Gravity of Fluid

P n

Power no. of Impeller Consumed Horse Power

Seal Losses depend type of seal for exmple - Lip Seal, Stuffing, Mech. Seal

No Seal value is = 0 CHP Seal Loss Motor Margin =

Consume Horse Power 0 1.25

MTG. STRUCTURE MOTOR DETAIL MOTOR KW RPM

500 mm

0.00 kW 1500 (4 pole)

LATED CONSUMED HORSE POWER

=

0

0

LATED MOTOR HORSE POWER

=

0

0.0

HP

CALCULATED CONSUMED HORSE POWER Formula

D5XN3XSXnXP 16X104

CALCULATED MOTOR HORSE POWER

Motor Horse Power = [CHP + Seal Losses] X MOTOR MARG Gearbox efficiency

0

l Losses] X MOTOR MARGIN

POWER NUMBER CALCULATION 'Np' : Np =

c/s (NRe, NFr, s1, s2, s3, s4, s5, s6)

NRe =

NFr =

DA2

DA

*n*S u

=

REYNOLDS NUMBER

* n^2 ge

=

FROUDE NUMBER

s1 to s6 = SHAPE CONSTANTS Np =

P * ge n^3 * DA^5 * S

=

CALCULATIONS FOR REYNOLDS NUMBER NRe =

c/s * DA^2 * n * S , s1, s2, s3, s4, s5, s6, DA * n^2 u ge

(NRe)

0

(84)^2 * 0.6 * 0.936 1

CALCULATIONS FOR POWER NUMBER P=

Np * n^3 * DA^5 * S ge

P=

0

(P)

0 gm-cm/sec

0 kg-m/sec

DA n S Np N u ge

P=

0 HP

0

0 mm, which is > 2 X DA Power Consumed by second Impeller is also equal to P

As the distance between 2 Impellers =

P=

0 HP

Power Consumption by 2 Impellers

Effect on Power due to Shape Constants : From Actual Conditions :

1

s1 =

Tank Dia Impeller Dia

DT DA

#DIV/0!

2

s2 =

Bot Cl'rance Impeller Dia

E DA

#DIV/0!

3

s3 =

Blade Lg. Impeller Dia

C DA

#DIV/0!

4

s4 =

Blade Width Impeller Dia

W DA

#DIV/0!

5

s5 =

Baffle Width Tank Dia

J DT

#DIV/0!

6

s6 =

Liq. Level Tank Dia

H DT

#DIV/0!

The curve Based shape constants are :

(75 Kg-m.sec = 1 HP)

Dia of Impeller in Mtrs. Reqd. Speed rpm in Mtrs. Specific Gravity of Fluid Power no. of Impeller Consumed Horse Power Viscosity Dimensional constant

0 cm 0 rps 1 gm/cc 0 0 1 cp 981 cm/sec2

c = 1 HP)

r is also equal to P

AGITATOR DESIGN CALCULATIONS MECHANICAL DESIGN DESIGN DATA : SHAFT DETAIL : M.O.C. Yield Stress (Fy) Shear Stress (Fs) Young's Modulus (E) Output Speed (rpm)

0 14.5 Tons/in2 3.143 Tons/in2

= = = =

345000

0

rpm

23.387097 Kg/mm2 4.9109375 Kg/mm2 345,000 psi 0 rps

MOTOR DETAIL : kW Input Speed STD, TEFC, IP-55

0 1500

3 PHASE, 415+-10% VOLTS, 50 Hz F CLASS INSULATION, MTG B5 FRAME SIZE : 225S Make : ABB/SIEMENS/BBL GEAR BOX DETAIL :

SIZE : RATIO : SERVICE FACTOR :

KPD-28 #DIV/0! 2

INLINE HELICAL / WORM TYPE MAKE : ELECON/GREAVES/SEW

SHAFT DIAMETER CALCULATIONS : DESIGN kw : rpm (n)

0 0

Continuous Torque (Tc) Tc =

716*HP n TORQUE

Design Torque (Tm) Tm =

Tc*S. F./1.5

#DIV/0!

Kg-m

#DIV/0! Nm

(Service factor=1.5)

#DIV/0!

Kg-m

Sweep Diameter of Agitator = Sweep Radius = [R] Maximum force at point of jamming (Fm) Fm =

0 0

Kgs

Free length below bottom bearing (L) Maximum Beanding Moment Fm*L 10^3/2 B.M.

#DIV/0!

Kg-m

#DIV/0! Nm

Kg-m

#DIV/0! Nm

Sqrt(Mm^2 + 0.75 * Tm^2

#DIV/0!

For Stainless / Mild Steel (Fy)

23.39

Kg/mm2

3*SQRT(32*Mem*1000) Pi()/4*ds3

ds =

#DIV/0! SHAFT DIA

Mtrs.

(Mem)

AXIAL LOAD

Fy =

0

#DIV/0! Nm

Mm

Equivalent Bending Moment Mem =

Mtrs. Mtrs.

Tm 0.715*R #DIV/0!

Mm =

#DIV/0! Nm

#DIV/0!

3SQRT(32*Mem*1000) pi()/4)/360*22.66 mm Round-up

This Job Using Hollow Pipe 219 O.D X sch80 pipie

Kg/mm2 Kg/mm2

WIDTH OF IMPELLER BLADE, (W)

W

D * 0.25

W BLADE THICKNESS CALCULATIONS :

D * 0.25

t

180*SQRT(Tm/2) Fy*(W)/NO. BL)/3*10^2

#DIV/0! ###

=

DESI

0

Fy Tm Tm/2 W No. BL t

= = = = =

DESIGN 23.3871 Kg/mm2 #DIV/0! Nm #DIV/0! Nm 0 Blade width 0 NoS. #DIV/0! Blade Thickness

IMPELLER DETAILS : 32 DEG HYDROFOIL TYPE HUB DIAMETER : = SHAFT DIA x

#DIV/0! #DIV/0!

HUB DIAMETER : HUB HEIGHT : SPOKE WIDTH REF. LINE TO SHAFT Ctrs SPOKE LENGTH ROLL RADIUS BLADE WIDTH LEADING BLADE WIDTH TRAILING BLADE WIDTH TIP SPOKE OVER BLADE BLADE LENGTH BLADE WIDTH AT SPOKE BLADE TIP RADIUS

310 = = = = = = = = = =

0 #DIV/0! 0.0 0 0 0 0 #DIV/0! 330 0

IMPELLER DETAILS : 32 DEG PBT TYPE HUB DIAMETER : = SHAFT DIA

0 0

HUB DIAMETER : HUB HEIGHT : SPOKE WIDTH REF. LINE TO SHAFT Ctrs SPOKE LENGTH ROLL RADIUS BLADE WIDTH LEADING BLADE WIDTH TRAILING BLADE WIDTH TIP SPOKE OVER BLADE BLADE LENGTH BLADE WIDTH AT SPOKE BLADE TIP RADIUS

x

120 = = = = = = = = = =

0 0 0.0 0 0 0 0 -6 140 0

L TYPE 1.9

ASSUME

1.9

ASSUME

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