ROLON DRY GAS SEALS PPT.ppt

7/25/2019 ROLON DRY GAS SEALS PPT.ppt

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ROLON Gas Seals

Gas seals and their application for maximum

reliability


2/39

Rolon seals Turbomachinery

Products & Operation


3/39

DGS Application Range

ROLON DGS

Operating Range

Temp:-1! to "#1$%&

Pressure:to $! 'arg

Speed:to (!!m)s

Shaft:to ##!mm


4/39

*ype (+A* Seal Design ,eatures

&ompliant stationary face design proiding

maximum flexibility

Optimum slo. roll capability

Logarithmic spiral orbi-directional design/

*ungsten carbide or silicon carbide rotating seat


5/39

*ype R(+ A* for duties to +( bar

&arbon seal faces

0lastomeric O2 Ring

Secondary seal


6/39

*ype (+ 34 for duties to (!! bar

5eyed 'alance dia/polymer

&arbon seal faces


7/39

*ype (+ R034 for duties to #$! bar

&ranite seal faces

AD& 'alance dia/polymer


8/39

6ohn &rane

Range of Standard gas seals

High Speed

Re-injection uties

LNG type Duties

Type R28 XPType R28 XP

Type R28 EXPType R28 EXP

ROLON seal dominate High Technology MarketROLON seal dominate High Technology Market

sectorssectors

Type R28 ATType R28 AT

&ore business


9/39

*ype +( 'arrier seal

!enefits

Pro"en # reliable design

$% years field e'perience on

a (ide range of applications

)'cellent protection against

Oil ingress into *S

limited +, onsumption

+o e'plosi"e mi'ture ris. +o process gas to bearing

housing

)n"ironmentally /riendly


10/39

&ontrol 4anels 7 S04ro Systems

&omplex Gas Seal control panel

7 booster for '4 8orn 9ountain

S04ro system for '4


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Gas seal performance progress

ATTri

ple

ATTri

pleXP

Tande

m

XPTande

m

XPTriple

XPTriple

XP!

ad

XP!

ad

EXPT

andem

EXPT

andem

"#ranite$

"#ranite

$

A%#

&

A%#

&

ATTandem

ATTandem


12/39

RO0O+ S)10 Turbomachinery

Seal design for ma'imum

reliability


13/39

RO0O+ S)10Turbomachinery

System design for ma'imum

reliability234 of seals fail prematurely because of

contamination


14/39

0nsure the gas is clean and dry

Process Gas

,: ,:

,:L*0R

9OD;L0

4RO&0SSGAS

03*0RNAL

GASFiltered Process Gas

/or e'tended reliabilityclean # dry seal gas is the

5OST important

Gas should be filtered

to around 1 micron

&oalescing filters canbe used to dry the gas

8eaters can be used to

proide superheat

8eat tracing should be

used to preent heatloss

S04ro type systems

can be used to proide

static gas flo.


15/39

A, 1$($< Gas &omposition

!

(!

!

+!

1!!

1(!

1!

1

1+!

-1+! -1

*emperature =&>

4ressure

=bar>

de. line bubble line Adiabatic 0xpansion 8ydrate &ure =1? 8(O>

4hase Diagrams

hec. adiabatic e'pansion

hec. hydrate formation


16/39

;sing a thermocouple to measure seal

temp

End User in Alaska5.687 Seal on Suction End6.929 seal On Dischargeein!ection dut" #ith $2S

%25 &ar #orking 'ressure%5( &ar )a* 'ressure++75% r')O'erating since August 2(((

Specify a Thermocouple to

monitor seal temp O)5 (ill need to pro"ide

e'it gland


17/39

A, 1$($

-$@%& De. 4oint

!

(!

!

+!

1!!

1(!

1!

1

1+!

-(!! -1$! -1!! -$! ! $! 1!! 1$!

*emperature =&>

4ressure

=bar>

de. line bubble line Adiabatic 0xpansion 8ydrate &ure

Gas from Sid Seal Gas D0 Seal Gas ND0

,ield Gas Analysis

- 4lot operating conditions


18/39

A, 1$($

-$@%& De. 4oint

!

(!

!

+!

1!!

1(!

1!

1

1+!

-(!! -1$! -1!! -$! ! $! 1!! 1$!

*emperature =&>

4ressure

=bar>

de. line bubble line Adiabatic 0xpansion 8ydrate &ure

Gas from Sid Seal Gas D0 Seal Gas ND0

,ield Gas Analysis

- 4lot operating conditions

,easured o'erating

'oints -ro) Data ca'ture

s"ste)

redicted #orst case

e*'ansion line

Actual #orst case

e*'ansion line 'assing

through li/uid region


19/39

Reie. gas properties

0hite de'osits -ound across 1 seal -aces

3aused seat and -ace to stick together

3lear e4idence o- li/uid conta)ination

Area anal"sed

Element Wt%

C K (9.62

O K (9.(

AlK ((.++

SiK ((.%2

S K 8(.55

0hite de'osits identi-ied as de'osition o- ele)ental sul'hur


20/39


- reate a clean en"ironment for the

seal under allconditions


21/39

&lean seal gas inBection

C Normal operation

Process Gas

,: ,:

,:L*0R

9OD;L0

4RO&0SSGAS

03*0RNALGAS

Filtered Process Gas,lo. path of

seal gas under

normal dynamicoperating

conditions


22/39

,: ,:

Filter No differential pressure

no flo.

Seal contaminatedby process gas

&an Lead to Seal

hang up on start-up

No seal gas flo. at settle out conditions

Settle- out &onditions=4ressurised standstill>


23/39

S04ro -Superior by design

Application deeloped gas circulator

:nbuilt safety and monitoring features

4lug and play operating philosophy

Auto start ) stop functions

Onboard logic and control

SEPro - Heated filtered seal gas on demand duringshutdown and periods of low differential pressure

ensure the seal is constantly maintained in optimumcondition and readiness for re-start.

Seal environment solutionsSeal environment solutions fromfrom

6hen the unit is statically pressurised

there is no seal gas flo(

7T e'pansion causes cooling 1ny li8uids or hea"y ends are deposited in

the seal

This results in serious contamination and

premature seal failure The S)Pro system pro"ides flo( to .eep

the seals clean and dry

Pro"ides major increase in seal life


24/39


HEATER

MODULE

PI

FIT

N2

PURGE

VENT

VENT

TE

PI

VENT

PI

GAS BOOSTER

CONTROL

MODULE

PI PI

MONITORING OUTPUTS

AIR

SUPPLY

STATUS

PANEL

S

FROM MAIN SEAL GAS FILTERS FEED TO DRY GAS SEALS

FILTER

NC

NC

NC

NC

S)Pro /lo( diagram


25/39


S04ro - 9ore than Bust another filtered gas pacage

Maintain optimum seal condition

Increase compressor availability

Prevent liquid contamination at seal faces

Prevent process debris contamination

Increase dry gas seal M!"

#$%E material compatibility

$E& and PE' options

Experience has proven that process contamination is the

biggest single contributor to premature gas seal failure


26/39


)nsure the O! seal is

ade8uately alarmed


27/39

0nsure the O' seal is adeEuately alarmed

,: ,:

#( SE%)#'$*+

"I,E* M)',E

4&F

Filtered N2Secondary Gas

,LAR0,:

4:

,O

4:

,O

,:

Process Gas

,: ,:

,:L*0R

9OD;L0

4RO&0SSGAS

03*0RNALGAS

Filtered Process Gas

Process + N2Gas to Flare

0nsure O' seal is alarmed

L4 in 4F O' seal failure

84 in 4F :' seal failure


28/39


)nsure ade8uate separation

from bearing oil


29/39

*ype +( 'arrier Seal - ,unction


30/39

F0N*

N2

to Atmosphere

0nsure adeEuate 'arrier Seal Supply

,: ,:

#( SE%)#'$*+

"I,E* M)',E4&F

Filtered N2Secondary Gas

,LAR0,:

4:

,O

4:

,O

,:

Process Gas

,: ,:

,:L*0R

9OD;L0

4RO&0SSGAS

03*0RNALGAS

Filtered Process Gas

Process + N2Gas to Flare

0nsure 'arrier gas

supply pressure is

adeEuately controlled

Should be controlled

to !/# to !/$ bar 'arrier Seal leaage

changes .ith time

:nterloc .ith

bearing oil

P9 P9

arrier seal 'ressure

controlled #ith 3s


31/39

Type 2, !ushing pgrade - the Type 2; !arrier Seal

:mproed 4roduct - *ype +# 'arrier Seal

&arbon Segments

Garter Spring

ae Spring


32/39

Type 2; !arrier Seal

Ne. Deelopment - *ype +# 'arrier Seal

Oilside

Dr"as

Seal

side


33/39

*ype +# 'arrier Seal


34/39


)nsure The O)5


35/39

0nsure the compressor is tested .ith

Bob panel

&omplex Gas Seal control panel

7 booster for '4 8orn 9ountain

The O)5


36/39

Specification for maximum reliability

- Summary

se polymer seals in place of O rings

)"en at lo( pressures ?P seal sho( benefits

)nsure the gas is clean and dry

se coalescing filters to remo"e li8uids

)nsure ade8uate draining

Heat trace lines @ insulate

se S)Pro system to pro"ide seal gas under shutdo(n

Protects the seal from process gas (hen the machine is shutdo(n

se heaters to increase margin o"er li8uid formation

se a thermocouple (ithin the seal to monitor temp


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)nsure ade8uate O! seal failure sensing onfirm test conditions reflect duty

1'ial mo"ements Transient mo"ement Aacuum testing

Temperature transients onfirm seal "endor test conditions reflect duty

0ea.age monitoring )nsure flo(metres are correctly siBed hec. shutdo(n flo( rates

!arrier seal gas system )nsure ade8uate barrier seals are pro"ided

1de8uate pressure control C3=; to 3= barD onfirm failure sensing Pro"ide bearing oil interloc. onsider e'plosi"e mi'tures # including failure condition

Specification for maximum reliability

- Summary


38/39

6ohn &rane Gas Seals OfferH-

)'perience 5ore e'perience than the other gas seal "endors puttogether

*lobal ser"ice 0ocal e'perience and support 0ocal repair ser"ice

1ll to a guaranteed global standard

Technology Pro"en high performance products specially selected for

specific re8uirements

ROLON S0ALS orld leaders in Dry Gas Seal


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ROLON S0ALS C orld leaders in Dry Gas Seal

*echnology

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ROLON DRY GAS SEALS PPT.ppt