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7/25/2019 Boiler Note 1

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PowerPointPresentation

Chapter 8Boiler Operation Procedures

Taking Over a Shift First-Time BoilerStart-up Procedures Routine Boiler

Start-up Procedures Boiler aintenance

Procedures Boiler ShutdownProcedures Boiler !nspection

"#drostatic Test Boiler Trou$leshooting


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%hapter & ' Boiler Operation Procedures

Boiler operation information is communicated to the

$oiler operator starting the shift to specif# an# special

procedures re(uired)


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*hen $lowing down the

gauge glass+ water should

enter the gauge glass (uickl#

when the gauge glass

$lowdown valve is closed)


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,uring a $ottom$lowdown+ the $oilershould $e underlight load and the

water level should$e at the O*.)


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The $lowdown valve isopened to evacuate thelow water fuel cutoffcham$er with the $urner

firing during $lowdown)


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*hen testing theflame scanner+ theflame scanner sensoris covered to simulate

a flame failure)


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Before starting the$oiler for the first time+the $oiler should havea minimum water level

of appro/imatel# 01a$ove the $ottom of thegauge glass)


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The $urner is started inlow fire according toprocedures specified$# the manufacturer)


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The $oiler vent is closedwhen pressure in the$oiler reaches 23 psi to24 psi)


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The main steam stopvalve is opened slowl# toallow the pressure toe(uali5e when the $oiler

is a few pounds $elowthe header pressure)


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6 $roken or discoloredgauge glass is replacedusing standardprocedures for ma/imum

safet#)


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The low water fuel cutoffcontrols must $e installedverticall# for properperformance)


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The $urner is maintained and tested to ensure properoperation and ma/imum efficienc#)


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Feedwater pumpsshould $e checkedperiodicall# to ensureproper $earing

temperatures andchecked for an#unusual vi$ration)


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Safet# valves areroutinel# tested to ensureproper operation andmust $e serviced $# an

authori5ed manufacturerrepresentative)


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Steam traps are checkedfor proper operationwhen determining thecause of a steam$ound

feedwater pump)


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*hen inspecting a$oiler+ inspect tu$esheets+ tu$es+ andother internal parts for

corrosion+ overheating+and7or other damage)


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"andhole covers areremoved to provideaccess to $oiler partsduring a $oiler

inspection)


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6ll internal surfacesare e/posed andcleaned prior to the$oiler inspection)


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Trou$leshooting stepsfrom the manufacturerprovide a guide tocorrecting a $oiler

operation pro$lem)


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The $oiler room log lists$oiler operation data thatcan $e used to increase$oiler efficienc# and

identif# a potentialmalfunction)

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