Wilo Pump Data

7/24/2019 Wilo Pump Data

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PUMP FUNDAMENTALS

Darwin S. Ibanez

darwin.ibanez@wilo-philippi

nes.co

!"#$ %&' (!)&

WILO SE

9F Unit 905, Pearl Bank Centre146 Valero Street, Salcedo Villae,

!akati Cit" P#ili$$ine%

& ' 0() 5** ) 4016 +-ilo-co./
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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What will we cover?

P.$in S"%te. Ca$acit" +Flo ate/ &otal 2"na.ic 3ead

Static 3ead 2"na.ic 3ead Sction #ead Sction lit init" La% PS3 S"%te. Cr7e


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PumpingSystems

ll o t#e $i$in

Ve%%el Ot#er t"$e% o e8i$.ent +7al7e%, .eter%, elo%, etc-/,

E7er"t#in t#at i% interconnected to or. a $at# or

li8id to lo

A pumping system consists of:


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Pumping Systems

e a.ont o li8idloin t#ro# a

$.$in %"%te. i%

knon a% t#e

capacity or flow rate


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Pumping Systems

$.$ .%t o7erco.e

t#e resistanceo a

$.$in %"%te. in order

to ca%e a li8id to loco.$letel" t#ro# t#e

%"%te.

e%i%tance to li8id lo i%knon a% a $.$in

%"%te.:% &otal 2"na.ic

3ead +&23/

PumpResistance

Head


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Pumping Systems

&otal 2"na.ic 3ead +&23/ i% t#e %. o to $art%'

Total Dynamic Head

Static Head

+

Dynamic Head

ll 3ead 7ale% are .ea%red in Feet or !eter% )&r%t .e or no, .ore later ;;;


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Pumping Systems

Static #ead re$re%ent% t#e

re%i%tance o a $.$in

%"%te. eore t#e li8id

i% %et into .otion

2"na.ic #ead re$re%ent%

t#e re%i%tance o a$.$in %"%te. #ile

t#e $.$ed lid i% in

.otion


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Static Head

e $ri.ar" co.$onent o Static #eadi% t#e ele7ation dierence

eteen'

t#e %race o t#e li8id at t#e $oint o %ction

t#e %race o t#e li8id at t#e $oint o di%c#areStatic #ead al%o accont% or t#e $re%%re dierential eteen t#e $oint

o %ction and t#e $oint o di%c#are

Static #ead doe% not 7ar" it# ca$acit"


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Centrifugal Pump HydraulicsStatic Pump Head (Flooded Suction)

PumpCenterline

SuctionHead

DischargeHead

StaticHead

!ample "# $on%&perating (Static)

Static Head'HD % HS

HS

HD


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Centrifugal Pump HydraulicsStatic Pump Head (Flooded Suction)

PumpCenterline

F*

#+F*

#,F*

!ample "# $on%&perating (Static)

Static Head'#+-%-' #,-


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Centrifugal Pump HydraulicsStatic Pump Head (Suction .ift)

PumpCenterline

DischargeHead

Suction

.ift

StaticHead

!ample ", $on%&perating (Static)

Static Head'HD / .S

HD

.Sote' %ction lit re8ire%%el $ri.in $.$% or%ction c#eck 7al7e%


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Centrifugal Pump HydraulicsStatic Pump Head (Suction .ift)

PumpCenterline

#+F*

,

F*

#0F*

!ample ", $on%&perating (Static)

Static Head'

#+-/,-' #0-


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Dynamic Head

2"na.ic #ead lo%%e%are t#o%e lo%%e% t#at are reali


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Dynamic Head

Eac# co.$onent o a

$.$in %"%te.

contrite% to t#e

d"na.ic #ead lo%%e% or

t#e entire %"%te.

t#ro# Friction Lo%%e%

cceleratin t#e $.$ed

lid ro.


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Friction Head .oss

t"$ical riction lo%% tale or $i$in ill%trate% riction lo%%e% a% anction o ca$acit", $i$e dia.eter > $i$e lent#

See t#e reerence .aterial% in "or cla%%roo. #andot

Friction #ead lo%%e% increa%e dra%ticall" it# increa%ed lo

Ft. PSI Ft. PSI Ft. PSI Ft. PSI

1 !"# $" 1"% "% "% "& "$ "1

' '("1 1"% !"$ '") '"# 1"$ "# "&

$ (&"! '$"( 1$"! ("! !"$ '") 1"% "%

& #(" &"# '$"( 1"1 1"% &"! $"1 1"$

&( $") 1$"' 1$"( ("% $"# 1")

) !%"% '#"! $1"$ 1$"( %"# $"%

1 !'"' '!"% 1)"& )"(

2"GPM

1.25"1" 1.50"

Head loss in Feet (PS1) per #- of pipe


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Friction Head .oss

Friction loss ta2lescan 2e o2tained from the componentmanufacturer or various other reference sources

Friction losses are a function of capacity and component si3e

*ery component of a pumping system has associated

friction losses

TYPE 1 2 3 4

#

*l,ow

1"! $"1 &"& ("#

-ateale

1"' '"! '"% '"#

-lo,e

ale

&( ) #& 1'

Swing

chec.

)"' 1) ') $%

*/uialent length

'( 1 1)( '(

-P0

PS

'

1(

1

(

12 '2 $2

3low meters


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Friction Head .oss

E8i7alent lent# o ittin%'

* elo% ? * @ +AV((/ ? * 0-*6 1-4( ? 1-5*:

Pi$e lent# ? 4: D 4: D (: D (0: D (0: D 1: D (0: ? :

&otal riction lo%%e% ? 1-5: D +: @ 1-4100/ ? 1:

G W#ere t#e $i$e riction lo%% i% 1-4: $er #ndred eet

n this e4ample the friction loss calculation is:

Pump

'2 Pipe

%5

'5

'51%5

'5

Static 3ead

Sction Lit

'5

&5

&5

6o77le

#"'5 re/5d

System 3low 8 1 -P0


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Friction Head .oss

6o77le

#"'5 re/5d

E8i7alent lent# o ittin%' ( elo% ? ( @ +0-*6 1-4(/: ? 1-0(:

Pi$e lent# ? (0: D (0: D 1: D (0: ? :

&otal riction lo%%e% ? 1-0( D+: @ 1-4100/ ? 15:

n this e4ample the friction loss calculation is:

Pump

'2 Pipe

1(5

'5 '5

'5

'5

Static 3ead

1%5Sction 3ead

System 3low 8 1 -P0 '5


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4elocity Head

Velocit"3ead Lo%% i% %i.$l" a nction o t#e 7elocit" ot#e lid loin t#ro# t#e $.$in %"%te.

i% 7ale i% %all" %.all, and oten nelected ) BeCarel

e a$$ro$riate 7ale i% i7en in .an" riction lo%% tale%

9elocity ftsec

9elocity head loss

in feet

37? V(( ? -0155 V(


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*otal Dynamic Head

e $.$in

%"%te.:% total

d"na.ic #ead i%

%i.$l" t#e %. o

t#e %"%te.:% %tatic

#ead and d"na.ic

#ead

;hat is my

system5s TDHT?

Static Head

Dynamic

Head


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System Curve

e %"%te. de%iner can c#ane t#e %#a$e o t#e S"%te.cr7e " alterin t#e %iAPA>T?

Dynamic

Head

Static Head


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System Curve

e end %er can c#ane t#e %#a$e o t#e S"%te. cr7e " o$enin orclo%in %"%te. 7al7e%, c#anin e8i$.ent or $i$in la"ot%, and7ar"in t#e li8id le7el% in t#e %ction or di%c#are tank%

H*AD

>APA>T?

Dynamic

Head

Static Head


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;ental $ote

I%olatint#e $.$ or .aintenance

con%ideration%

U%in t#e di%c#are 7al7e a% a

t#rottlin 7al7e to control t#e

$.$

di%c#are c#eck 7al7e .a" al%o e

re8ired in #i# di%c#are #eada$$lication%

%ction c#eck 7al7ei% re8ired or

%ction lit it#ot a %el $ri.er-

t is a good system design practice to include suction anddischarge ales in a pumping system"

Syste

m@ayo

ut

=lue

prints


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et Po%iti7e Sction 3eadCalclation and $$lication

*he Suction Side &ell &ale Indicator%

K dile oi%e +P.$in ock%Crackin/

K Lo%% o Pre%%reFlo

K Pitted I.$eller%> Veriication

K Prole. Eli.inated B" rottlin

K Pre%%rePoer &rianlation> Cre%

K Increa%e PS3a

K Eli.inate Sction O%trction%

K Increa%e S"%te. 3ead


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Pressure =cting &n *he Surface &f *he .i7uid

t.o%$#eric $re%%re

Pre%%ri


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$PSH=

Pre%%re 7ale% .%t e con7erted to Neet o #ead %int#e olloin or.la'

Feet o #ead ? PSI @ (-*1 %$eciic ra7it"

t.o%$#eric $re%%re ? 14- PSI +%ea le7el/ ? *4 Feet Pre%%ri


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>elative levation &f *he .i7uid

Static %ction #ead increa%e%PS3 eca%e

ra7it" #el$% $ll li8id into t#e $.$ Static %ction lit decrea%e%PS3 eca%e

t#e $.$ .%t ork aain%t ra7it"

PC0P

Static suction head implies that the li/uid

leel is a,oe the inlet of the pump

Static suction lift implies that the li/uid

leel is ,elow the inlet of the pump


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Friction .osses 1n *he Suction Piping

Factor% aectin riction lo%%e% inclde'

GSi


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4apor Pressure &f *he .i7uid

The apor pressure of the li/uid

must ,e carefully considered to

insure proper pump operation

Va$or $re%%re indicate% t#edi7idin line eteen a li8id andit% a%eo% %tate

Va$or $re%%re t"$icall" 7arie% it#te.$eratre

e $re%%re in t#e %ction line.%t ne7er all elo t#e 7a$or$re%%re o t#e li8id


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4apor Pressure

li8id it# a 7a$or $re%%re o $%i 100 de Fre8ire% at lea%t $%i o $re%%re actin on it:%

%race to %ta" a li8id-

e $re%%re in a lid #andlin %"%te. .%t ee8al to or reater t#an t#e 7a$or $re%%re o t#e

li8id at e7er" $oint t#ro#ot t#at %"%te.-

Wit#ot %icient $re%%re t#e li8id ill la%# intoa a% and eco.e n)$.$ale-


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@ust 6ive ;e *he Formula


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$et Positive Suction Head

HS ( / )

PA ( / )

HF ( % )

P4 ( % )

.owest .i7uid Height =2ove *he SuctionCenterline &f *he Pump (F*)

=tmospheric (Aarometric) Pressure =2ove*he Suction Source (F*) % =2solute

Friction .oss From *he Source *o *heSuction Centerline &f *he Pump (F*)

4apor Pressure &f the .i7uid =t *he;a!imum &perating *emperature (F*) %=2solute

=vaila2le (System) ' PA / H

S % H

F% P

4


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$et Positive Suction Head =vaila2le

$PSH= ' PA / HS % HF % P4

HS

PA

HF

P4

=ll 4alues ;ust Ae Converted *oFeet From =2solute PressuresB

se Charts =ttached For 4apor

Pressures =t *he Proper*emperature

se *he ;inimum .i7uid Height=2ove *he Pump SuctionB


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$PSH=

PA ' #5:

PS1=

+ & F4P'?

!ample =Flooded Suction % =m2ient *emp5 % Sea .evel

HS '

# F*

HF ' E

' 9 F* / # F* % F* % #5 F*

' 95 F*



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PA ' #,5 PS1=

, & F4P'?

!ample AFlooded Suction % High *emp5 % High =ltitude ( F*)

HS '

# F*

HF ' F*

' ,:5+ F* / # F* % F* % ,:5+ F*

' #5 F*


$PSH=


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!ample C

Suction .ift % =m25 *emp5 % Sea .evel

' 9 F* / (%# F*) % F* %#5 F*

' #95 F*

PA ' #5:

PS1=

+ & F4P'#5

HS '

# F*

HF ' F*


$PSH=


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#5

PS1=

# & F4P'?

!ample DAoiler Feed % Sea .evel

HS '

+ F*

HF ' # F*

' ,59 F* / + F* % # F* % ,5, F*

' 5# F*


$PSH=


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*H=$ G&B

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Wilo Pump Data