instruction of oil pressure 6.3mpa - pl13

8/10/2019 Instruction of Oil Pressure 6.3MPa - PL13

1/15

Hangzhou Sanhe Electric Control Equipment Co.,Ltd.

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Appendix 13. Instruction of Oil Pressure Supply System

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Ref ' No '&0S4.412.0016

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CONTENTS


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Ref ' No '& 0)4.412.0016

789:;?@ABHangzhou Sanhe Electric Control Equipment Co.,Ltd. P%*e+ of 14

DFnGtruction o Iil preGGure GupplJ GJGtem

1' , N RA-

2' OR)IN, - / N0S AN$ INS0R !0ION O /AIN PAR0S

3' INS0A--A0ION AN$ A$3 S0/ N0

4' /AIN0 NAN! O OI- PR SS R S PP- S S0 /

5' OI- PR SS R S PP- S S0 / 0RO 6- S7OO0IN, !7AR0

1 Ke er l

"e m%in purpose for t"e oil pressure supply system is to supply ot"er e8uipment 9it" pressure oil.


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It is 9idely %pplied to *o:ernin* %nd control system of tur;ine *ener%tor< %nd inlet :%l:e %ndsp"eric%l :%l:e %s 9ell. It %lso c%n ;e %pplied to some pl%ce 9"ere use pressuri=ed oil %s oilsource.

"e system is desi*ned for % m%ximum 9or#in* pressure of 6.3/P%. Norm%lly oil pump isof incontinuous oper%tion mode. It %lso %dopts continuous oper%tion mode 9"en necess%ry.

"e 9or#in* medium is compressed %ir %nd -' SA'46 tur;ine oil."e system is desi*ned for complete control 9it" necess%ry indic%tors %nd si*n%l tr%nsmitters

for s%fe oper%tion %ccordin* to modern st%nd%rd."e oil pressure supply system is of com;ined type< i.e. pressure t%n# is com;ined 9it" oil

sump t%n#. It t%#es up % little sp%ce 9it" s"ort pipe connection %nd is e%sy for inst%ll%tion.

2 Working elements and Instruction of main parts

2.1 Elements diagram of the oil pressure supply system

Pump 1 st%rt>stopPump 2 st%rt>stopPressure t%n#'"i*" pressure %l%rmPressure t%n#'lo9 pressure stopPressure t%n#'%ir supply st%rtPressure t%n#'%ir supply stop

Pressure t%n#'lo9 le:el %l%rm

Po9er supply A! 3&0? for pump 1 motor Po9er supply A! 3&0? for pump 2 motor

7i*" le:el si*n%l of oil sump t%n# -o9 le:el si*n%l of oil sump t%n#

S0OP ?A-?

Air supply


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2.2 Hydraulic Schematic Diagram for oil pressure supply system

$O

OI-

PR SS R

AN)

AIR @7A S0

A @ PR SS R OI- O -

/AIN PR SS R OI- O -

OI- P /P

$OOI-

S /P

0AN) OI- R R 7O-

Air connection

!ontrol connection

7ydr%ulic connection$I

$O

Si*n%l input

Si*n%l output

Sym;ol expl%n%tion

$I

R -I ?A-?

S0OP ?A-?

!O/6IN $ ?A-?


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2.3 Instruction of main parts2.3.1 Oil sump t%n#

"e oil sump t%n# is desi*ned 9it" % :olume t"%t is sufficient for t"e tot%l %mount of in t"e*o:ernin* system. "e t%n# "%s inspection openin*s to *i:e %ccess for ser:ice %nd routineinspection.A 9ire mes" str%iner di:ides t"e t%n# into t9o p%rts ' % cle%n section %nd % dirty section.Return'oil %nd le%#ed oil from t"e control system return to t"e dirty section of t"e sump

t"rou*" oil'return pipes. "e oil is pumped into t"e oil'pressure t%n# ;y %n oil pump %fter ;ein* str%ined t"rou*" % 9ire mes" str%iner.

Oil sump t%n# M Oil pressure t%n# N -e:el s9itc" O Pressure s9itc"P A!. motor Q Pressure *%u*eR Scre9 pump Relief :%l:eT !om;ined :%l:e U Str%iner

V -i8uid le:el control s9itc" W Air filter X Indic%tor oil le:el


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"ere is % %ir cle%ner e8uipped 9it" on t"e oil'return t%n#. "e le:el indic%tor c%n send si*n%lto control t"e oil :olume to *u%r%ntee enou*" oil for system use.2.3.2 Oil pump

"e oil pressure supply system is e8uipped 9it" t9o e8u%l oil pump units. "e oil pump isnorm%lly of incontinuous oper%tion mode %nd it %dopts continuous oper%tion mode in s"orttime 9"en necess%ry. "e oil pump is dri:en ;y A!.motors t"rou*" couplin*. "en t"e

pressure inside of oil t%n# is decre%sed to % cert%in :%lue< t"e pressure s9itc" sends % si*n%l%nd oil pump st%rts. "en t"e oil 9ill ;e %;sor;ed ;y scre9 pump %nd sent to t"e pressuret%n#. "en t"e pressure is incre%sed % cert%in :%lue< t"e pressure s9itc" sends % si*n%l %ndt"e pump stops.An oil pressure supply system 9it" t9o oil pump units 9ill "%:e one pump runnin*continuously 9"ile t"e ot"er pump is %ctin* %s st%nd;y. "e preferred %nd st%nd;y pumps %rec"%n*ed %t re*ul%r inter:%ls.

"e pump s"%ll ;e filled 9it" oil ;efore it is st%rted %fter o:er"%ul or stoppin* for % lon* time.2.3.3 !om;ined :%l:e

%c" scre9 pump is e8uipped 9it" % com;ined :%l:e. "is :%l:e is collected c"rc# :%l:e3 of upper p%rt %nd

ur;o oil -' SA'46 in 1>3 of p%rt. "e compressed %ir is fed into oil pressure t%n# t"rou*"%ir :ent :%l:e from t"e %ir t%n#.

"e oil le:el in t"e t%n# is controlled ;y refillin* of compressed %ir. !orrect oil le:el isimport%nt in order to o;t%in necess%ry ener*y stor%*e %nd necess%ry %mount of oil. Refillin*of %ir is necess%ry ;ec%use pressuri=ed oil %;sor;s some %ir.2.3.5 Relief :%l:eRelief :%l:e is e8uipped 9it" to pre:ent t"e oil pressure t%n# from too "i*" pressure.

it"in t"e norm%l 9or#in* pressure< t"e piston of s%fety :%l:e is closed ;ec%use of t"e effectof sprin* force.

"en t"e oil pressure in t"e lo9er p%rt of t"e piston of relief :%l:e is e8u%l to t"e sprin* forcein t"e upper p%rt of piston< t"e relief :%l:e is opened to disc"%r*e oil.

"e relief :%l:e is e8uipped 9it" % spir%l sprin* %nd % ;i* piston %nd 9it" % "i*" %ccur%cy in

flo9 %nd pressure. It could ;e %dCusted t"e pre'ti*"tenin* force ;y rot%tin* "e%d co:er %ndcontrol t"e openin* pressure of relief :%l:e.If t"e relief pilot :%l:e %nd unlo%der pilot :%l:e in :%l:e p%c#et %re in m%lfunction< t"e relief :%l:e could protect t"e oil pressure t%n# from o:erlo%d.2.3.6 Instrument%tion

"e oil pressure supply system is desi*ned for complete remote control 9it" necess%ryindic%tors %nd pressure s9itc"ecs for s%fe oper%tion %ccordin* to modern st%nd%rd.

"e principle di%*r%m< s"o9s %ll input %nd output si*n%l %nd po9er supply."e "ydr%ulic circuit system. s"o9s t"e instrument%tion %nd t"e control functions in %ddition

to t"e m%in components.2.3.( !ontrol system

"e follo9in* function c%n ;e performed ;y t"e instrument ;o%rd of system."e selector s9itc" of m%in oil pump+

S9itc" Eoff'%uto'on for e%c" oil pump.S9itc" Eoff'%uto'on for %ir'supply de:ice.Indic%tor for e%c" oil pump oper%tion.

"e position of s9itc" c"ooses 9"ic" one is t"e m%in pump %nd 9"ic" one is t"e st%nd;y pump. At t"e norm%l oper%tion< t9o of pumps %re pl%ced t"eir s9itc"es into t"e %uto. /%in pump %nd st%nd;y pump is controlled ;y t"e pressure s9itc"es on t"e pressure oil t%n#. "enit is decre%sed % cert%in :%lue< t"e oil pump st%rts to 9or# %nd stops 9"en t"e oil pressure is


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incre%sed % cert%in :%lue."en t"e s9itc" is pl%ced t"e Eon < t"e oil pump st%rts to rot%te. It is not controlled ;y t"e

pressure s9itc"< i.e. m%nu%l control. "en t"e s9itc" is turnned to t"e Eoff < t"e oil pumpstops to rot%te.At t"e period of norm%l oper%tion< t"e s9itc" of %ir'supply de:ice 9ill ;e pl%ced t"e E%uto .

"e %ir'supply de:ice is controlled ;y le:el s9itc" %nd pressure s9itc" on t"e pressure t%n# for controllin* %ir supply. "en t"e %ir needed< open %ir'supply solenoid :%l:e t"rou*" t"ele:el s9itc" %nd pressure s9itc"< %nd fill t"e compressed %ir into t"e pressure t%n#. "e %ir'supply solenoid :%l:e 9ill ;e closed %fter %ir "%s ;een supplied.

"en t"e %ir'supply s9itc" is pl%ced t"e Eon < %ir'supply 9ill ;e m%nu%lly performed 9it"outcontrol of le:el s9itc" %nd pressure s9itc".

3. Installation and adjustment"e oil pressure supply system must ;e firstly cle%ned ;y #erosene prior to inst%ll%tion. "en

cle%n %ll pipin* ;y compressed %ir %nd %ssem;le it %ccordin* to t"e dr%9in*s %fter lu;ric%ted

;y tur;o oil -' SA'46. !le%nin* of components c%n only ;e used ;y sil# or r%* 9"ic" s"%llnot lose fi;er.3.1 Notes durin* inst%ll%tion3.1.1 After ;ein* connected 9it" t"e couple of motor< scre9 oil pump s"%ll ;e rot%tedsmoot"ly %nd sli*"tly 9it"out C%m if mo:ed ;y "%nd.3.1.2 "e scre9 oil pump s"%ll ;e ti*"tly connected 9it" oil suc#in* pipe. "ere s"ould not

;e %ny %ir suc#in* p"enomen%.3.2 Initi%l st%rt %fter inst%ll%tion3.2.1 All :%l:es from scre9 pump to t"e pressure t%n# s"%ll ;e opened %nd t"e scre9 pumps"%ll ;e filled 9it" % cert%in lu;ric%tion oil.3.2.2 St%rt t"e motor of oil pump %t t"e moment %nd c"ec# its rot%tin* direction if it is in


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compli%nce 9it" t"e %rro9 m%r#ed on t"e oil pump.3.2.3 !lose t"e oil'disc"%r*e':%l:e of t"e pressure t%n#.3.2.4 St%rt t"e scre9 pump %nd fill t"e oil into t"e oil'pressure't%n# till t"e oil le:el in side of t"e pressure t%n# is little lo9er t"%n norm%l le:el. $urin* t"is period< t"e oil pump s"%ll ;erot%ted st%;ly 9it"out :i;r%tion %nd %;norm%l noise. All pipes %nd e%c" component s"%ll not

;e found %ny oil le%#%*e %t %ny Coint.3.2.5 ill oil %nd compressed %ir into t"e oil'pressure't%n# continuously. "e oil le:el s"%llnot ;e o:er t"%n norm%l oil le:el 9"en t"e pressure re%c"es 3.&/P% for l%stin* % period of 30minutes. !"ec# t"e ti*"tness of pipe. "ere s"ould not ;e %ny le%#%*e ;e found.3.2.6 ill compressed %ir into t"e pressure t%n# continuously %nd le%d t"e pressure up to6.3/P% %nd l%st % period of 30 minutes. If t"ere is no %;norm%l p"enomen%< oper%tion could

;e performed."e filled compressed %ir must ;e dry.

3.3 AdCustment3.3.1 Relief :%l:e of pressure t%n#

"en t"e relief pilot :%l:e in t"e :%l:e p%c#et is disordered %nd t"e oil le:el in t"e pressuret%n# is o:er t"e desi*ned :%lue< t"e relief :%l:e s"%ll open. "e follo9in* procedure s"%ll ;eused for c"ec#in* %nd possi;le %dCustment+1D !lose oil'rele%se :%l:e.2D Press t"e sprin* of relief pilot :%l:e %nd t"e sprin* of unlo%der pilot :%l:e to t"e limit< i.e.

st%rtin* pressure is t"e m%ximum.

3D Incre%se t"e pressure in t"e oil pressure t%n# :i% fillin* oil ;y oil pump %nd until t"e relief :%l:e opens. AdCust t"e sprin* so t"%t t"e openin* pressure of relief :%l:e t"e fulldisc"%r*e pressure of relief pilot :%l:e. "e full disc"%r*e pressure F (.5/P%.

4D !lose t"e oil pump %nd open t"e oil'rele%se :%l:e *r%du%lly in order to c"ec# t"e closin* pressure of relief :%l:e. "e closin* pressure of relief :%l:e s"%ll not ;e lo9er t"%n6.5/P%. Repe%t t"e step 2D< 3D %nd 4D up to re%c" t"e re8uirement.

-oc# t"e nut %fter %dCustment.3.3.2 AdCustment of t"e com;ined :%l:eAdCustment of t"e com;ined :%l:e consists of t9o %dCustment< i.e. %dCustment of relief pilot

:%l:e %nd t"e %dCustment of unlo%der pilot :%l:e. "e %dCustment procedure is %s follo9s+1D !lose t"e oil'rele%se :%l:e.2D Press t"e sprin* of relief pilot :%l:e to t"e limit Bi.e. t"e openin* pressure is t"e m%ximumD.

AdCust t"e sprin* of unlo%der pilot :%l:e for pre'ti*"ten force so t"%t t"e openin* pressureof unlo%der pilot :%l:e is 6.G3/P%.

3D AdCust t"e sprin* of t"e relief pilot :%l:e for pre'ti*"ten force so t"%t t"e relief pilot :%l:e"%s follo9in* pressures+

Openin* pressure 6.43/P%ull disc"%r*e pressure 6.G3/P%ull closin* pressure 5.(5/P%

Repe%t t"e step 2D %nd 3D %nd up to re%c" t"e re8uirement.


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-oc# t"e nut %fter %dCustment.3.3.3 Pressure s9itc"

"e oil pressure unit is e8uipped 9it" four pressure s9itc"es. "e follo9in* steps %re toc"ec# t"e 9or#in* pressure of t"e pressure s9itc"+1D St%rt %nd stop t"e pressure s9itc" of t"e 9or#in* pump. Rectify t"e do9n'limited :%lue to

5.(/P%. "e 9or#in* pump s"%ll ;e oper%ted %utom%tic%lly %t t"is moment. Rectify t"eup'limited :%lue to 6.3/P%< 9or#in* pump s"%ll stop.

2D St%rt %nd stop t"e pressure s9itc" of t"e st%nd';y pump. Rectify t"e do9n'limited :%lue to5.4/P%. St%nd';y pump s"%ll ;e oper%ted %utom%tic%lly %t t"is moment. "en t"e up'limited :%lue is 6.3/P%< st%nd';y pump s"%ll stop to rot%te.

3D or t"e pressure s9itc" for lo9 pressure emer*ency stop< its rectified :%lue s"%ll ;edetermined %ccordin* to t"e c%lcul%tion of t"e tur;ine s%fety oper%tion. In *ener%l< it is4.6/P%.

4D or t"e :%lue for "i*" pressure %l%rm< it s"%ll ;e determined ;y customer< ;ut s"%ll notexceed (.5/P%.

3.3.4 -e:el indic%tor on t"e oil sump t%n# Set up t"e function point for le:el indic%tor+ "e le:el indic%tor s"%ll send % si*n%l to stop oil'fillin* 9"en t"e oil le:el in side of oilsump t%n# is 120mm "i*"er t"%n norm%l le:el. "e le:el indic%tor s"%ll send % si*n%l to st%rt oil fillin* 9"en t"e oil le:el in side of oilsump t%n# is 150mm lo9er t"%n norm%l le:el.

4. Maintenance of oil pressure system4.1 ur;o oil -' SA'46 is %pplied to t"is oil pressure supply system %nd its 8u%lity s"%llconform to rele:%nt re*ul%tion.4.2 After first one mont" oper%tion< t"e oil pressure supply system s"%ll ;e rene9ed t"e oil or filtered oil finely. After t"%t< t"e oil used in t"e oil pressure supply system s"%ll ;e done

p"ysic%l %nd c"emic%l %n%lyse %ccordin* t"e m%inten%nce sc"edule %nd t"en %dd some of ne9oil or rene9 t"e oil.4.3 9o of oil pumps s"%ll ;e s"ifted %fter e%c" ( d%ys< i.e. c"%n*e t"e 9or#in* pump tost%nd';y pump.

Maintenance schedule for oil pressure supply system

NO. -tem 7%lf ye%r %fter commissionin* Inter:%lBye%rD1>2 1 2 4


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1 Oil pump

6e%rin*Hc"ec#>%dd lu;ric%tion oil

lo9 me%surement

,ener%l m%inten%nce

2!om;ined:%l:e

0est for openin* pressure Y fulldisc"%r*e pressure %nd close

pressure of relief pilot :%l:e0est for openin* pressure of unlo%der pilot :%l:e

3 Relief :%l:e0est for openin* pressure of relief

pilot :%l:e

4 Pressure s9itc" Si*n%l>%l%rm test

5 Str%ner !le%n6 Oil pressure t%n# !le%n

( Oil sump t%n# !le%n

& Air filter !le%n

G -e:el indic%tor Si*n%l test


12/15


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- B -

Oil pressure t%n# oil pressure %;norm%l

Is t"e oil pressure %;norm%lly "i*"J

es Btoo "i*"D

Is scre9 pump in oper%tionJ

Is t"e relief pilot :%l:e of com;ined :%l:e in oper%tionJ

No Btoo lo9D

No

es

es

No

es

No

!"ec# oil pump c%p%city

!"ec# *o:ernor system for %;norm%l oil consumptionJ

No

es

Is t"e oil pump c%p%city norm%lJ

O:er"%ul pump

AdCust t"e openin* pressure "i*"J

!"ec# pumpcontrol< po9er

supply or motor

!"ec# t"econtrol system

of st%nd';y

Is st%nd';y pump inoper%tionJ

es

No

es

No

No

!om;ined :%l:est%rts to 9or#.

Is pressure

s9itc" in proper conditionJ

es

Inspectrelief :%l:e

for mec"%nicm%lfunctio

Z

Stop

!ontinue from p%*e A

es No

Is t"e unlo%der pilot :%l:e of com;ined :%l:e in oper%tionJ



Is t"e relief pilot :%l:e of oil pressure t%n# in oper%tionJ

Inspectcom;ined:%l:e for mec"%nicm%lfunctio

!"ec# control

system for oil pump.

O:er"%ulor rene9 pressure

s9itc"


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- C -

Oil pressure t%n# oil le:el is %;norm%l

Is oil le:el too "i*"J

No Btoo

es Btoo "i*"D

Air supply m%lfunction

$oes le:el controller send %si n%l to %ir su l de:iceJ

No

es

Inspect t"e c%use of %ir supply f%ilure.

!"ec# t"e le:el controller

Air in pressure t%n# is too muc".

Is %ir supply J

es

No/%nu%lly stop %ir supply tillt"e m%lfunction is foundJ

$oes le:el controller send %si*n%l to %ir supply de:iceJ

!"ec# t"e si*n%lloc%tion for

le:el controller Inspect t"e c%use of %ir supply f%ilure.

Pressure t%n# disc"%r*es %ir till oil le:el is

correct.

Z

Stop

!ontinue from p%*e A

Pressure t%n# disc"%r*es %ir till

oil le:el is correct.


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Stop

Oil sump t%n# flo9oil to norm%l le:el.

Stop

O:er"%ul 9"ole system

instruction of oil pressure 6.3mpa - pl13

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