1.5.2水質(zhì)污染防范PreventionofWaterPollutio04課

1.5.2水質(zhì)污染防范PreventionofWaterPollution二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution衛(wèi)生器具用水設(shè)備Waterequipmentforsanitarywares配水件出水口應(yīng)高出承接用水容器溢流邊緣的最小空氣間隙，不得小于出水口直徑的2.5倍。Theminimumairgapbetweentheoutletofthewaterdistributionpartandtheoverflowedgeofthewatercontainershallnotbelessthan2.5timesthediameteroftheoutlet.生活飲用水水池（箱）進(jìn)水管Intakepipesofdomesticdrinkingwaterpool(tank)進(jìn)水管口最低點(diǎn)高出溢流邊緣的空氣間隙不應(yīng)小于進(jìn)水管管徑，且不應(yīng)小于25mm，可不大于150mm。Theairgapbetweenthelowestpointofthewaterinletpipeorificeandtheoverflowedgeshallnotbelessthanthediameterofthewaterinletpipe,andshallnotbelessthan25mm,andmaynotbemorethan150mm.向消防等貯水池（箱）補(bǔ)水Replenishwatertofirepools(tanks)進(jìn)水管口最低點(diǎn)高出溢流邊緣的空氣間隙不應(yīng)小于150mm。Theairgapbetweenthelowestpointofwaterinletpipeorificeandoverflowedgeshallnotbelessthan150mm.1.空氣間隙Airgap向中水、雨水回用水等貯水池（箱）補(bǔ)水Replenish

water

to

water

pools

(tanks)

for

reusing

reclaimed

water

andrainwater進(jìn)水管口最低點(diǎn)高出溢流邊緣的空氣間隙不應(yīng)小于進(jìn)水管管徑的2.5倍，且不應(yīng)小于150mm。Theairgapbetweenthelowestpointofthewaterinletpipeorificeandtheoverflowedgeshallnotbelessthan2.5timesthediameterofthewaterinletpipe,andshallnotbelessthan150mm.二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution2.真空破壞器Vacuumbreaker從小區(qū)或建筑物內(nèi)的生活飲用水管道上直接接出下列用水管道時(shí)，應(yīng)在用水管道上設(shè)置真空破壞器等防回流污染設(shè)施：Whenthefollowingwaterpipesaredirectlyconnectedfromthedomesticdrinkingwaterpipesinresidentialquartersorbuildings,backflowpreventionfacilitiessuchasvacuumbreakersshallbeinstalledonthewaterpipes:綠地噴灌Greenspacesprinklerirrigation當(dāng)游泳池、水上游樂(lè)池、按摩池、水景池、循環(huán)冷卻水集水池等的充水或補(bǔ)水管道出口與溢流水位之間應(yīng)設(shè)有空氣間隙，且空氣間隙小于出口管徑2.5倍時(shí)，在其充(補(bǔ))水管上。

Whenthereisanairgapbetweentheoutletofthewaterfillingorreplenishingpipeandtheoverflowlevelinswimmingpools,waterplaygrounds,massagepools,waterscapeponds,andcirculatingcoolingreservoirs,andtheairgapislessthan2.5timesthediameteroftheoutletpipe,vacuumbreakersshallbeinstalledonthewaterfilling(replenishing)pipes.不含有化學(xué)藥劑的綠地噴灌系統(tǒng)，當(dāng)噴頭為地下式或自動(dòng)升降式時(shí)，在其管道起端。

Forthegreenspacesprinklerirrigationsystemwithoutchemicals,whenthenozzleisundergroundorautomaticliftingtype,vacuumbreakersshallbeinstalledatthestartingendofthepipes.二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution消防（軟管）卷盤(pán)、輕便消防水龍。

Vacuumbreakersshallbeinstalledonfire(hose)reelandportablefirehose.出口接軟管的沖洗水嘴（閥）、補(bǔ)水水嘴與給水管道連接處。

Vacuumbreakersshallbeinstalledatthejointsoftheoutlethoseflushingnozzle(valve)orthereplenishingwaternozzleandwatersupplypipes.消防軟管卷盤(pán)Firehosereel軟管沖洗Hoseflushing二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution3.倒流防止器Backflowpreventer二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution3.倒流防止器Backflowpreventer從生活飲用水管道上直接供下列用水管道時(shí)，應(yīng)在用水管道的下列部位設(shè)置倒流防止器：Whenthefollowingwaterpipesaredirectlyconnectedtothedomesticdrinkingwaterpipes,backflowpreventersshallbeinstalledatthefollowingpartsofthewaterpipes:從城鎮(zhèn)給水管網(wǎng)的不同管段接出兩路及兩路以上至小區(qū)或建筑物，且與城鎮(zhèn)給水管形成連通管網(wǎng)的引入管上。

Onthe

servicepipe,forwhichtwoormorelinesareconnectedfromdifferentsectionsoftheurbanwatersupplynetworktoresidentialquartersorbuildings,andformaconnectedpipenetworkwiththeurbanwatersupplynetwork.從城鎮(zhèn)生活給水管網(wǎng)直接抽水的生活供水加壓設(shè)備進(jìn)水管上。

Ontheinletpipeofdomesticwatersupplypressurizationequipmentwithwaterdirectlypumpedfromtheurbanwatersupplynetwork.利用城鎮(zhèn)給水管網(wǎng)直接連接且小區(qū)引入管無(wú)防回流設(shè)施時(shí)，向氣壓水罐、熱水鍋爐、熱水機(jī)組、水加熱器等有壓容器或密閉容器注水的進(jìn)水管上。

Ontheintakepipethatfillswaterintopressurizedcontainersorclosedcontainerssuchasgaspressurewatertanks,hotwaterboilers,hotwaterunitsandwaterheaters,whentheurbanwatersupplynetworkisusedfordirectconnectionandthereisnobackflowpreventionfacilityintheservicepipeoftheresidentialquarters.二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution3.倒流防止器Backflowpreventer從小區(qū)或建筑物內(nèi)生活飲用水管道系統(tǒng)上接至下列用水管道或設(shè)備時(shí)，應(yīng)設(shè)置倒流防止器：Backflowpreventersshallbeprovidedwhenthedrinkingwaterpipingsysteminresidentialquartersorbuildingsisconnectedtothefollowingwaterpipesorequipment:單獨(dú)接出消防用水管道時(shí)，在消防用水管道的起端。

Whenthefirewaterpipeisseparatelyconnected,abackflowpreventershallbeinstalledatthebeginningofthefirewaterpipe.從生活用水與消防用水合用貯水池中抽水的消防水泵出水管上。

Abackflowpreventershallbeinstalledontheoutletpipeofthefirepumppumpingwaterfromthewaterpoolsharedbydomesticdrinkingwaterandfirewater.二、水質(zhì)污染的防止措施PreventiveMeasuresforWaterPollution3.倒流防止器Backflowpreventer生活飲用水管道系統(tǒng)上連接下列含有有害健康物質(zhì)等有毒有害場(chǎng)所或設(shè)備時(shí)，必須設(shè)置倒流防止設(shè)施：Backflowpreventionfacilitiesmustbeprovidedwhenthedomesticdrinkingwaterpipesystemisconnectedtothefollowingtoxicandharmfulplacesorequipmentcontaininghazardoussubstances:貯存池（罐）、裝置、設(shè)備的連接管上。

Thebackflowpreventermustbeinstalledontheconnectingpipesofwaterpools(tanks),devicesandequipment.化工劑罐區(qū)、化工車(chē)間、三級(jí)及三級(jí)以上的生物安全實(shí)驗(yàn)室除按本條第1款設(shè)置外，還應(yīng)在其引入管上設(shè)置有空氣間隙的水箱，設(shè)置位置應(yīng)在防護(hù)區(qū)外。

Forthechemicalagenttankfarm,chemicalworkshop,andbiosafetylaboratoriesofLevelIIIorabove,inadditiontobeingsetupaccordingtoParagraph1ofthisArticle,watertankswithairgapsshallbeprovidedontheservicepipesoutsidetheprotectionarea.二、水質(zhì)污染的防止措施