Speciality Flow Meters

8/10/2019 Speciality Flow Meters

1/52

29/11/2006 Flow Meters / Manisha Na 1

BY:BY:

MANISHA NARVEKARMANISHA NARVEKAR


2/52


OPERATING COSTS ARE REDUCED BYOPERATING COSTS ARE REDUCED BY

CHANGING PRACTICESCHANGING PRACTICES

Best practices to reduce operating costs are:1)1) Using fowmeters designed toUsing fowmeters designed toEimin!teEimin!te

Im"#se $inesIm"#se $inesto minimi%e t&e need 'orto minimi%e t&e need 'or

m!inten!n(em!inten!n(e

)) UsingUsing Non*+e(&!ni(! +etersNon*+e(&!ni(! +etersto minimi%eto minimi%em!inten!n(e (osts,m!inten!n(e (osts,

-)-) Utii%ingUtii%ing Predi(ti.e +!inten!n(ePredi(ti.e +!inten!n(eto (om"eteto (om"etem!inten!n(e on/ on t&ose meters t&!tm!inten!n(e on/ on t&ose meters t&!tre0#ire itre0#ire it

)) +inimi%ing Perm!nent Press#re $oss+inimi%ing Perm!nent Press#re $oss


3/52


E$I+INATING +ECHANICA$ +ETERS REDUCESE$I+INATING +ECHANICA$ +ETERS REDUCES

DO2NTI+E AND +AINTENANCE COSTSDO2NTI+E AND +AINTENANCE COSTS

Large Obstruction to earLarge Obstruction to ear Mo!ing "artsMo!ing "arts

No Obstruction to earNo Obstruction to ear No Mo!ing "artsNo Mo!ing "arts

$i0#id T#r3ine +eter B!de 2e!r (!#ses in!((#r!(/ !nd e.ent#!/ down*time,$i0#id T#r3ine +eter B!de 2e!r (!#ses in!((#r!(/ !nd e.ent#!/ down*time,

B!de Re"!(ement re"resents !most 14 t&e "ri(e o' ! new meterB!de Re"!(ement re"resents !most 14 t&e "ri(e o' ! new meter


4/52


E$I+INATING I+PU$SE $INES REDUCESE$I+INATING I+PU$SE $INES REDUCES

POTENTIA$ $EA5 POINTS O6ER 789POTENTIA$ $EA5 POINTS O6ER 789

Tr!dition! Inst!!tion

"otentia# Lea$ "oints % &'"otentia# Lea$ "oints % &'"ot( Lea$ "oints %"ot( Lea$ "oints %''

"ot( Lea$ "oints % )"ot( Lea$ "oints %& *+


5/52


+INI+ISING PRESSURE $OSS+INI+ISING PRESSURE $OSS

"ressure Loss"ressure Loss, -epends on t.e /o0 tec.no#og1 se#ected-epends on t.e /o0 tec.no#og1 se#ected

, "ressure drop ran$ing2"ressure drop ran$ing2

1, Coriois

, Ori:(e4No%%e

, 6orte;


6/52

Flow Meters / Manisha NarvekarFlow Meters / Manisha Narvekar 6629/11/200629/11/2006

+AGNETIC+AGNETIC

INDUCTI6EINDUCTI6E>$O2+ETERS>$O2+ETERS


7/52


+AGNETIC >$O2 +ETERS+AGNETIC >$O2 +ETERS

PRINCIP$EPRINCIP$E

2OR5ING PRINCIP$E ? >ARADAY@S $A2

U = K x B x V x D

K = instrument constant

B = magnetic field strength

V = mean flow velocity

D = electrode spacing


8/52



9/52



10/52


A measrin! t"e

A liner

A #air o$ ele%tro&es

A #air o$ $iel& %oils

A ma!neti% shiel&in!

A hosin!

THE CONSTRUCTION O> THE >$O2 HEADTHE CONSTRUCTION O> THE >$O2 HEAD::


11/52


3.e signa# !o#tage is pic$ed up b1 e#ectrodes t.at are in3.e signa# !o#tage is pic$ed up b1 e#ectrodes t.at are inconducti!e contact 0it. process /uid 4 insu#ated 5ro6 t.econducti!e contact 0it. process /uid 4 insu#ated 5ro6 t.e

tube 0a##(tube 0a##( 7#o0 rate is7#o0 rate is

3.e signa# !o#tage 8i is con!erted b1 signa# con!erter into3.e signa# !o#tage 8i is con!erted b1 signa# con!erter into/o0 indication 9i/o0 indication 9i

And con!erted into standardied signa#s appropriate to t.eAnd con!erted into standardied signa#s appropriate to t.eprocessprocess


12/52


SE$ECTION O> +AG*+ETER O6ER U>+SE$ECTION O> +AG*+ETER O6ER U>+


13/52


SUITAB$E INSTA$$ATION $OCATION

+AGNETIC >$O2 SENSOR


14/52


+AGNETIC >$O2 SENSORINSTA$$ATION GUIDE$INES


15/52


NEE- O7 ;RO8N-IN;NEE- O7 ;RO8N-IN;


16/52


3er6s e


17/52


AD6ANTAGES O> A +AG+ETERAD6ANTAGES O> A +AG+ETER

No parts inside:No parts inside:

Same diameter as matingSame diameter as matingpipe:pipe:

No moving parts:No moving parts:

ith the liner we achieve!!ith the liner we achieve!!

tu"e

#lectrode

liner

C tdC td


18/52


T&e m!gnet :ed is "resentT&e m!gnet :ed is "resentt&ro#g&o#t t&e tot!t&ro#g&o#t t&e tot!

fowmeter,fowmeter,

Res#tRes#t, E;(eent !.!r!ging o' t&eE;(eent !.!r!ging o' t&e

fow "ro:e !o.er t&efow "ro:e !o.er t&e(om"ete "i"e se(tion,(om"ete "i"e se(tion,

, Red#(ed ee(t o' t&eRed#(ed ee(t o' t&e.eo(it/ "ro:e onto t&e.eo(it/ "ro:e onto t&eme!s#ring !((#r!(/ me!s#ring !((#r!(/

, S&ort #"stre!m str!ig&tS&ort #"stre!m str!ig&tse(tion re0#iredse(tion re0#ired

Contd,,,Contd,,,

magnet field lines

VS

US

flow strings


19/52


APP$ICATION CRITERIAAPP$ICATION CRITERIA

1) Cond#(ti.it/ o' t&e i0#id,

) Ee(t o' i0#id o"er!ting tem"er!t#re

-) +!gneti( fow meter m#st !w!/s 3e '#

) $i0#id s&o#d not (ont!in entr!ined g!ses,

7) Periodi( (e!ning is re0#ired i' 3#id*#" is

t&ere,


20/52


CORIO$ISCORIO$IS

>$O2 +ETER>$O2 +ETER


21/52


MEAS8RIN; "RIN=I"LEMEAS8RIN; "RIN=I"LE

3.e 6easuring princip#e is based on t.e3.e 6easuring princip#e is based on t.e

contro##ed generation o5 =orio#is 7orces(contro##ed generation o5 =orio#is 7orces(3.ese 5orces are a#0a1s present 0.en3.ese 5orces are a#0a1s present 0.en

bot. trans#ationa# and rotationa#bot. trans#ationa# and rotationa#

6o!e6ents are superi6posed(6o!e6ents are superi6posed(


22/52


CHANGE IN PHASE SHI>T DUE TO TUBECHANGE IN PHASE SHI>T DUE TO TUBE

OSCI$$ATIONSOSCI$$ATIONS


23/52


=ONS3R8=3ION2=ONS3R8=3ION2


24/52


=HAN;E IN "HASE SHI73=HAN;E IN "HASE SHI73


25/52


SE$ECTION O> CORIO$IS O6ER ORI>ICESE$ECTION O> CORIO$IS O6ER ORI>ICE


26/52


PROCESS CONDITIONPROCESS CONDITION

AD6ANTAGESAD6ANTAGES


27/52


AD6ANTAGES AD6ANTAGES

1) A 0ide range o5 /uids t.at are o5ten inco6patib#e

0it. ot.er /o0 6easure6ent de!ices(

&>Independent o5 Re1no#ds nu6ber(

?> =orio#is /o06eters pro!ide a direct 6ass /o06easure6ent (

+>=orio#is /o06eters .a!e outstanding accurac1(

)> 3.e rangeabi#it1 o5 t.e /o06eters is usua##1 on t.eorder o5 &@: or greater(


28/52


7) A Coriois fowmeter is (!"!3e o' me!s#ringm!ss fow r!te .o#metri( fow r!te f#id densit/!nd tem"er!t#re * ! 'rom one instr#ment,


29/52


$I+ITATIONS $I+ITATIONS

> =orio#is /o06eters are not a!ai#ab#e

5or #arge pipe#ines(

&> =orio#is /o06eters are e =orio#is /o0 6eters .a!e dicu#t16easuring t.e /o0 rate o5 #o0pressure gas(


30/52


U$TRASONICU$TRASONIC

>$O2 +ETER>$O2 +ETER


31/52


>> Acoustic signa#s are trans6itted andAcoustic signa#s are trans6itted andrecei!ed a#ong a diagona# 6easuring pat.(recei!ed a#ong a diagona# 6easuring pat.(

&>&> A sound 0a!e goingA sound 0a!e going do0nstrea6do0nstrea60it. t.e0it. t.e

/o0 tra!e#s 5aster t.an a sound 0a!e/o0 tra!e#s 5aster t.an a sound 0a!egoinggoing upstrea6upstrea6against t.e /o0(against t.e /o0(

?>?> 3.e diCerence in transit ti6e is direct#13.e diCerence in transit ti6e is direct#1proportiona# to t.e /o0 !e#ocit1 o5 t.eproportiona# to t.e /o0 !e#ocit1 o5 t.e#i9uid(#i9uid(

INTRODUCTIONINTRODUCTION

THEORY O> OPERATION


32/52


THEORY O> OPERATION

Time dieren(et"ro"ortion!

to fow .eo(it/V

A(t#! .o#me r!te'rom

V; (ross*se(tion!!re!

P#se tr!nsit timesme!s#red #"stre!m downstre!m

Press#re Tem"er!t#re in"#ts #sed to

(om"#te St!nd!rd 6o#me +!ss fow r!tes DTime o.er dist!n(eF so timing !nd dimensions!re (riti(! to fow meter "er'orm!n(e


33/52


-I77EREN=E IN 3RANSI3 3IME-I77EREN=E IN 3RANSI3 3IME

$low velocity

'ensor

A

'ensor

(

D=%ipeDiameter

)rans&%er * +e%eiver o$ A%osti% 'i!nals

A%osti% 'i!nals

,m- .elo%it o$ 'on&

CALCULATION OF FLOW VELOCITYCALCULATION OF FLOW VELOCITY


34/52


CALCULATION OF FLOW VELOCITYCALCULATION OF FLOW VELOCITY

&ransit time = istan%e

'#ee&

Downstream Sensor ' to B

Upstream Sensor B to '

)(A -

, . %os

)A( -

, . %os

- i#e &iameter - A%osti% #ath len!th

.m- Flow velo%it me&im

,m- .elo%it o$ son& me&im

V ( cos )

Vm

*

D

+m

&ransducer '

)rans&%er (


35/52


2etted

G!s 4 Ste!m$i0#id

C!m"*on

>owmeters

2etted C!m"*onPort!3e Port!3e2etted

G!s 4 Ste!m$i0#id

C!m"*on

>owmeters

2etted C!m"*onPort!3e Port!3e

U$TRASONIC >$O2 +ETERING*BYU$TRASONIC >$O2 +ETERING*BY

+ETER TYPE+ETER TYPE


36/52


U$TRASONIC >$O2 +ETERINGU$TRASONIC >$O2 +ETERING3HE ANA3OMY: E33E-3HE ANA3OMY: E33E-

E#ectronics or3rans6itter

=ab#es

7#o0ce##

3ransducer

"rea6p#iers F;ason#1>


37/52


E#ectronics or 3rans6itte

=ab#es

=#a6ping 7i


38/52


2etted2etted C!m"*OnC!m"*On

Accurac1Accurac1 @()@() , & , &

Maintenance costsMaintenance costs Near JeroNear Jero Lo0Lo0

Insta##ation costsInsta##ation costs Hig.er F"ac$age>Hig.er F"ac$age> Lo0Lo0Insta##ation e$O2 +ETERING*2ETTED

INSTA$$ATION 6S, C$A+P ONINSTA$$ATION 6S, C$A+P ON

B2T TECHNO$OGYB2T TECHNO$OGY


39/52



, B#er Te(&noog/B#er Te(&noog/

De.eo"ed 'orDe.eo"ed 'or

Hig& !nd $ow Tem"er!t#reHig& !nd $ow Tem"er!t#re

*88 to


40/52



3.e so#ution:3.e so#ution:, No So#id Rod but 7iber Acoustics na6ed: B3No So#id Rod but 7iber Acoustics na6ed: B3 , Bund#eBund#e a!eguidea!eguide3ec.no#og1 S1ste63ec.no#og1 S1ste6

Fiberacoustic Bundle

or waveguide

Flange

Cool Piezoelement

,ot $luidSound


41/52


)ransmitte& 'i!nal

-eceived Signals

'oli& ($$er

254 mm

() "$$er

#longated Signal

Sharp +lean Signal


Signa# =o6parisonSigna# =o6parison

SE$ECTION O> U>+ O6ERSE$ECTION O> U>+ O6ER


42/52


SE$ECTION O> U>+ O6ERSE$ECTION O> U>+ O6ER

ORI>ICEORI>ICE


43/52


PROCESS CONDITIONPROCESS CONDITION


44/52


SELE=3ION O7 87M OVER =ORIOLISSELE=3ION O7 87M OVER =ORIOLIS


45/52


AD6ANTAGESAD6ANTAGESAD6ANTAGESAD6ANTAGES

Non intrusi!eNon intrusi!e No 6o!ing partsNo 6o!ing parts

GG no 0earno 0ear

GG no pressure #ossno pressure #ossGG no c#oggingno c#ogging

7#uid properties .a!e no eCect on per5or6ance7#uid properties .a!e no eCect on per5or6ance 7or conducti!e and nonGconducti!e 6ediu6s7or conducti!e and nonGconducti!e 6ediu6s Hig. accurac1 o!er 0ide 6easuring rangeHig. accurac1 o!er 0ide 6easuring range Hig. turndo0n ratioHig. turndo0n ratio

Starts 6easuring 5ro6 ero /o0Starts 6easuring 5ro6 ero /o0

BiGdirectiona#BiGdirectiona#

S"E=I7I=A3ION SHEE3 7OR MA;GME3ERS"E=I7I=A3ION SHEE3 7OR MA;GME3ER


46/52



47/52


S"E=I7I=A3ION SHEE3 7OR 87MS"E=I7I=A3ION SHEE3 7OR 87M


48/52



49/52


S"E=I7I=A3ION SHEE3 7OR =ORIOLISS"E=I7I=A3ION SHEE3 7OR =ORIOLIS


50/52



51/52


52/52

Speciality Flow Meters

Documents

Transcript of Speciality Flow Meters