1.8.2水泵的设置SettingofWaterPum01课件讲解

1.8.2水泵的设置SettingofWaterPump一、水泵Waterpump（1）民用建筑物内设置的生活给水泵房不应毗邻居住用房或在其上层或下层，水泵机组宜设在水池（箱）的侧面、下方，其运行噪声应符合现行国家标准《民用建筑隔声设计规范》GB 50118的规定。Thedomesticwaterpumphousesetupincivilbuildingsshallnotbeadjacenttotheresidentialhousesorontheirupperorlowerfloors.Thewaterpumpunitshallbesetatthesideandthelowerpartofwaterpools(tanks),anditsoperationalnoiseshallcomplywiththecurrentprovisionsofthenationalstandard,CodeforDesignofSoundInsulationofCivilBuildings(GB50118).（2）水泵房应设排水设施，通风应良好，不得结冻。Thewaterpumphouseshallbeequippedwithdrainagefacilities,andtheventilationshallbegoodwithoutfreezing.3.水泵的设置Settingofwaterpump一、水泵Waterpump（3）布置间距Layoutspacing泵房内宜有检修水泵场地，检修场地尺寸宜按水泵或电机外形尺寸四周有不小于0.7m的通道确定。泵房内单排布置的电控柜前面通道宽度不应小于1.5m。泵房内宜设置手动起重设备。Thereshouldbeapumpmaintenancesiteinthepumphouse,anditssizeshouldbedeterminedaccordingtothewaterpumporchannelsofnotlessthan0.7mandnearthemotordimensions.Thepassagewaywidthinfrontoftheelectricalcontrolcabinetarrangedinasinglerowinthepumphouseshallnotbelessthan1.5meters.Manualliftingequipmentshallbeprovidedinthepumphouse.电动机额定功率（KW）Ratedpowerofthemotor(kW)水泵机组外廓面与墙面之间的最小间距（m）Theminimumspacing(m)betweenthe

externaloutlinesurfaceofthewaterpump

setandthewall相邻水泵机组外轮廓面之间的最小距离（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，并应符合下列规定：Thepumpshalladopttheautomaticwater-fillingsystem,andmeetthefollowingrequirements:每台水泵宜设置单独从水池吸水的吸水管。

Eachwaterpumpshallbeprovidedwithasuctionpipeseparatelysuckingwaterfromthereservoir.吸水管内的流速宜采用1.0m/s～1.2m/s。

Theflowvelocityinthesuctionpipeshouldbe1.0~1.2m/s.吸水管与吸水管之间的净距，不宜小于3.5倍吸水管管径（管径以相邻两者的平均值计）。

Thecleardistancebetweenthesuctionpipeshouldnotbelessthan3.5timesthediameterofthesuctionpipe(theaveragediametervalueofadjacenttwopipes).当水池水位不能满足水泵自灌启动水位时，应设置防止水泵空载启动的保护措施。

Whenthewaterlevelofthereservoircannotmeettheautomaticwater-fillingstartingwaterlevelofthepump,protectivemeasuresshallbetakentopreventthepumpfromstartingwithoutload.一、水泵Waterpump（5）喇叭口Bellmouth吸水管口宜设置喇叭口；喇叭口宜向下，低于水池最低水位不宜小于0.3m；当达不到上述要求时，应采取防止空气被吸入的措施。

Thesuctionpipeshallbeprovidedwithahornmouth,whichshallbedownwardandnotlessthan0.3metersbelowthelowestwaterlevelofthereservoir.Whentheaboverequirementscannotbemet,measuresshallbetakentopreventairfrombeingsuckedin.吸水管喇叭口至池底的净距，不应小于0.8倍吸水管管径，且不应小于0.1m；吸水管喇叭口边缘与池壁的净距不宜小于1.5倍吸水管管径。

Thecleardistancefromthesuctionpipebellmouthtothereservoirbottomshallnotbelessthan0.8timesthesuctionpipediameter,andshallnotbelessthan0.1meters;thecleardistancebetweentheedgeofthesuctionpipebellmouthandthereservoirwallshallnotbelessthan1.5timesthesuctionpipediameter.供水泵吸水的水池（箱）内宜设有水泵吸水坑，吸水坑的大小和深度应满足水泵或水泵吸水管的安装要求。

Awaterpumpsuctionpitshallbesetinthewaterpool(tank)forthewaterpumptosuckwater.Thesizeanddepthofthesuctionpitshallmeettheinstallationrequirementsofthewaterpumporitssuctionpipe.喇叭口Bellmouth一、水泵Waterpump（6）当每台水泵单独从水池（箱）吸水有困难时，可采用单独从吸水总管上自灌吸水。

Whenitisdifficultforeachwaterpumptosuckwaterfromthewaterpool(tanks)separately,itcansuckwaterfromthemainwatersuctionpipeautomaticallyandseparately.

（7）吸水总管伸入水池（箱）的引水管不宜少于2条，当1条引水管发生故障时，其余引水管应能通过全部设计流量；每条引水管上都应设阀门。

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

一、水泵Waterpump（8）每台水泵的出水管上应装设压力表、检修阀门、止回阀或水泵多功能控制阀，必要时可在数台水泵出水汇合总管上设置水锤消除装置。自灌式吸水的水泵吸水管上应装设阀门。Theoutletpipeofeachwaterpumpshallbeequippedwithapressuremeter,maintenancevalve,checkvalveormulti-functionalcontrolvalveforthewaterpump.Ifnecessary,awaterhammerarrestercanbesetontheconfluentmainoutletpipeofseveralwaterpumps.Valvesshallbeinstalledonthesuctionpipesofautomaticwater-fillingpumps.一、水泵Waterpump一、水泵Waterpump一、水泵Waterpump（9）水泵基础高出地面的高度应便于水泵安装，不应小于0.10m；泵房内管道管外底距地面或管沟底面的距离，当管径不大于150mm时，不应小于0.20m；当管径大于或等于200mm时，不应小于0.25m。Theheightofthepumpfoundationabovethegroundshallbeconvenientforpumpinstallationandshallnotbelessthan0.10meters.Whenthepipediameterisnotmorethan150millimeters,thedistancefromtheouter