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1、WaterCoolingSystems709709冷卻水系統(tǒng)709WaterCoolingSystemsIndex冷卻水系統(tǒng)索引Text目錄Index索引DrawingNo.附圖編號(hào)WaterCoolingSystems冷卻水系統(tǒng)709-01V70901-0001CoolingWaterTreatment冷卻水處理709-02V70902-0001SeawaterCoolingSystem.MainandAuxiliaryEngines主副機(jī)冷卻水系統(tǒng)圖70901VP70901-0001JacketCoolingWaterSystem汽缸套冷卻水
2、系統(tǒng)圖70902VP70902-0001CentralCoolingSystem中央冷卻系統(tǒng)圖70903VP70903-0001PreheatingofJacketCoolingWater預(yù)熱汽缸套冷卻水圖70904VP70904-0001WaterCoolingSystems709-01冷卻水系統(tǒng)1.General1.概述Pipesystemsvaryconsiderablyfromplanttoplant.Thefollowingschematicpipediagramsareincludedhere,forguidance,toillust
3、ratetheessentialprinciplesofthecircuitsandtheircorrelation.管系隨裝置不同差異很大。下面的管系示意圖可作為指導(dǎo)且說(shuō)明了管道的基本原理及他們間的相互聯(lián)系。Foraspecificplant,thecorrectdetailsmustbefoundinthepipingdiagramssuppliedbytheshipyard.對(duì)某一特定裝置，其詳細(xì)說(shuō)明可查閱造船廠所給的管系管路圖。2.SeawaterCoolingSystem(Plate90901)2.海水冷卻系統(tǒng)(插圖70901)Seaw
4、aterisdrawnupthroughtheseaconnection(1)bytheseawaterpump(2).Fromthepump,thewater-flowisdividedintothreeseparatebranches:海水經(jīng)通海接頭（1）由海水泵(2)抽取，泵排出的海水被分成三路:1.throughtheadjustablevalve(3)directtothemainenginescavengeaircooler(s).1經(jīng)調(diào)節(jié)閥（3）直接到主機(jī)掃氣空氣冷卻器；2.throughthenon-returnvalve(5)t
5、otheauxiliaryengines2經(jīng)止回閥（5）到副機(jī)；3.throughtheadjustablevalve(3)tothelub.oilcoolerandjacketwatercooler,whichareconnectedinseries.3經(jīng)調(diào)節(jié)閥（3）到串聯(lián)聯(lián)接的滑油冷卻器和缸套水冷卻器。Otherbranchesmaybeinstalledinparallelwithbranch3:其它支路可以與支路3并聯(lián)安裝–WatersupplytoPTO/RCFlubeoilcooler(ifinstalled).—向PTO/RCF滑油
6、冷卻器供水（如果安裝）Theseawaterfromtheabove-mentionedbranchesislatermixedagain,andthencontinuestothethermostaticallycontrolled3-wayregulatingvalve(6)attheseawateroverboardvalve(7).上述各支管的海水最后重新匯合，接著流至海水出海閥（7）處的溫度調(diào)節(jié)三通閥（6）.Regulatingvalve(6)iscontrolledbythesensor(8)whichislocatedinthese
7、awaterinletpipe.Thethermostatisadjustedsothatthewatertemperatureatthepumpinletiskeptabove10°C,inordertopreventthelub.oilfrombecomingtooviscousonthecoldcoolingsurfaces(seealso‘AlarmLimits’,Section701-01).調(diào)節(jié)閥（6）由位于海水進(jìn)水管處的傳感器（8）控制，自動(dòng)調(diào)溫閥的調(diào)整使得泵進(jìn)口處的水溫保持在10°C以上，以防止冷卻面上的潤(rùn)滑油過(guò)于粘滯。(參見(jiàn)70
8、1--01章列表中的“報(bào)警極限值”)Iftheseawaterinlettemperaturedropsbelowthesetlevel
