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。泵房內單排布置的電控柜前面通道寬度不應小于1.5m。泵房內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