1.8.2水泵的設置SettingofWaterPum01課件講解

1.8.2水泵的設置SettingofWaterPump一、水泵Waterpump（1）民用建筑物內(nèi)設置的生活給水泵房不應毗鄰居住用房或在其上層或下層，水泵機組宜設在水池（箱）的側面、下方，其運行噪聲應符合現(xiàn)行國家標準《民用建筑隔聲設計規(guī)范》GB?50118的規(guī)定。Thedomesticwaterpumphousesetupincivilbuildingsshallnotbeadjacenttotheresidentialhousesorontheirupperorlowerfloors.Thewaterpumpunitshallbesetatthesideandthelowerpartofwaterpools(tanks),anditsoperationalnoiseshallcomplywiththecurrentprovisionsofthenationalstandard,CodeforDesignofSoundInsulationofCivilBuildings(GB50118).（2）水泵房應設排水設施，通風應良好，不得結凍。Thewaterpumphouseshallbeequippedwithdrainagefacilities,andtheventilationshallbegoodwithoutfreezing.3.水泵的設置Settingofwaterpump一、水泵Waterpump（3）布置間距Layoutspacing泵房內(nèi)宜有檢修水泵場地，檢修場地尺寸宜按水泵或電機外形尺寸四周有不小于0.7m的通道確定。泵房內(nèi)單排布置的電控柜前面通道寬度不應小于1.5m。泵房內(nèi)宜設置手動起重設備。Thereshouldbeapumpmaintenancesiteinthepumphouse,anditssizeshouldbedeterminedaccordingtothewaterpumporchannelsofnotlessthan0.7mandnearthemotordimensions.Thepassagewaywidthinfrontoftheelectricalcontrolcabinetarrangedinasinglerowinthepumphouseshallnotbelessthan1.5meters.Manualliftingequipmentshallbeprovidedinthepumphouse.電動機額定功率（KW）Ratedpowerofthemotor(kW)水泵機組外廓面與墻面之間的最小間距（m）Theminimumspacing(m)betweenthe

externaloutlinesurfaceofthewaterpump

setandthewall相鄰水泵機組外輪廓面之間的最小距離（m）Theminimumdistance(m)betweentheexternal

outlinesurfacesoftheadjacent

waterpumpsets≤220.80.4＞22，＜551.00.8≥55，≤1601.21.2一、水泵Waterpump（4）水泵宜自灌吸水，并應符合下列規(guī)定：Thepumpshalladopttheautomaticwater-fillingsystem,andmeetthefollowingrequirements:每臺水泵宜設置單獨從水池吸水的吸水管。

Eachwaterpumpshallbeprovidedwithasuctionpipeseparatelysuckingwaterfromthereservoir.吸水管內(nèi)的流速宜采用1.0m/s～1.2m/s。

Theflowvelocityinthesuctionpipeshouldbe1.0~1.2m/s.吸水管與吸水管之間的凈距，不宜小于3.5倍吸水管管徑（管徑以相鄰兩者的平均值計）。

Thecleardistancebetweenthesuctionpipeshouldnotbelessthan3.5timesthediameterofthesuctionpipe(theaveragediametervalueofadjacenttwopipes).當水池水位不能滿足水泵自灌啟動水位時，應設置防止水泵空載啟動的保護措施。

Whenthewaterlevelofthereservoircannotmeettheautomaticwater-fillingstartingwaterlevelofthepump,protectivemeasuresshallbetakentopreventthepumpfromstartingwithoutload.一、水泵Waterpump（5）喇叭口Bellmouth吸水管口宜設置喇叭口；喇叭口宜向下，低于水池最低水位不宜小于0.3m；當達不到上述要求時，應采取防止空氣被吸入的措施。

Thesuctionpipeshallbeprovidedwithahornmouth,whichshallbedownwardandnotlessthan0.3metersbelowthelowestwaterlevelofthereservoir.Whentheaboverequirementscannotbemet,measuresshallbetakentopreventairfrombeingsuckedin.吸水管喇叭口至池底的凈距，不應小于0.8倍吸水管管徑，且不應小于0.1m；吸水管喇叭口邊緣與池壁的凈距不宜小于1.5倍吸水管管徑。

Thecleardistancefromthesuctionpipebellmouthtothereservoirbottomshallnotbelessthan0.8timesthesuctionpipediameter,andshallnotbelessthan0.1meters;thecleardistancebetweentheedgeofthesuctionpipebellmouthandthereservoirwallshallnotbelessthan1.5timesthesuctionpipediameter.供水泵吸水的水池（箱）內(nèi)宜設有水泵吸水坑，吸水坑的大小和深度應滿足水泵或水泵吸水管的安裝要求。

Awaterpumpsuctionpitshallbesetinthewaterpool(tank)forthewaterpumptosuckwater.Thesizeanddepthofthesuctionpitshallmeettheinstallationrequirementsofthewaterpumporitssuctionpipe.喇叭口Bellmouth一、水泵Waterpump（6）當每臺水泵單獨從水池（箱）吸水有困難時，可采用單獨從吸水總管上自灌吸水。

Whenitisdifficultforeachwaterpumptosuckwaterfromthewaterpool(tanks)separately,itcansuckwaterfromthemainwatersuctionpipeautomaticallyandseparately.

（7）吸水總管伸入水池（箱）的引水管不宜少于2條，當1條引水管發(fā)生故障時，其余引水管應能通過全部設計流量；每條引水管上都應設閥門。

Thereshallbenolessthan2waterinletpipesextendingintothewaterpool(tank)fromthemainwatersuctionpipe.When1waterinletpipefails,otherwaterinletpipesshallbeabletopassallthedesignflow;valvesshallbesetoneachwaterinletpipe.

一、水泵Waterpump（8）每臺水泵的出水管上應裝設壓力表、檢修閥門、止回閥或水泵多功能控制閥，必要時可在數(shù)臺水泵出水匯合總管上設置水錘消除裝置。自灌式吸水的水泵吸水管上應裝設閥門。Theoutletpipeofeachwaterpumpshallbeequippedwithapressuremeter,maintenancevalve,checkvalveormulti-functionalcontrolvalveforthewaterpump.Ifnecessary,awaterhammerarrestercanbesetontheconfluentmainoutletpipeofseveralwaterpumps.Valvesshallbeinstalledonthesuctionpipesofautomaticwater-fillingpumps.一、水泵Waterpump一、水泵Waterpump一、水泵Waterpump（9）水泵基礎高出地面的高度應便于水泵安裝，不應小于0.10m；泵房內(nèi)管道管外底距地面或管溝底面的距離，當管徑不大于150mm時，不應小于0.20m；當管徑大于或等于200mm時，不應小于0.25m。Theheightofthepumpfoundationabovethegroundshallbeconvenientforpumpinstallationandshallnotbelessthan0.10meters.Whenthepipediameterisnotmorethan150millimeters,thedistancefromtheouter