給排水畢業(yè)設(shè)計(jì)說(shuō)明書(shū)

1、H能介於/學(xué)理工學(xué)院畢業(yè)設(shè)計(jì)學(xué)生姓名：王冰學(xué)號(hào)：12L0403214專(zhuān)業(yè)：給水排水工程題目：某建筑給排水系統(tǒng)設(shè)計(jì)指導(dǎo)教師：李偉講師評(píng)閱教師：2021年6月本建筑高度88.3m;地下兩層,地上二十五層,建筑面積33100m2,地下二層為停車(chē)庫(kù),地下一層為庫(kù)房,地上為辦公用房.設(shè)計(jì)范圍：給水系統(tǒng),消火栓系統(tǒng),噴淋系統(tǒng),排水系統(tǒng).室內(nèi)給水系統(tǒng)采用上行下給式豎向分為3個(gè)區(qū)給水；地下二層車(chē)庫(kù)沖洗用水近期由低區(qū)變頻設(shè)備供給遠(yuǎn)期由市政水直接供給.地上系統(tǒng)分三個(gè)區(qū),1F8F為低區(qū),由低區(qū)加壓供水設(shè)備直接供給,9F16F為中區(qū),由高區(qū)加壓供水設(shè)備減壓后供給,17F21F為高區(qū),由高區(qū)加壓供水設(shè)備直接供給.室內(nèi)為

2、污廢合流,衛(wèi)生間各潔具排水就近排入排水立管,由地下一層排出室外.室外為雨污分流;車(chē)庫(kù)廢水經(jīng)隔油沉沙處理后排入院內(nèi)雨水管道,建筑生活污水經(jīng)化糞池處理后排入市政排水管網(wǎng).消防系統(tǒng)室內(nèi)管道成環(huán)狀布置,豎向分為兩個(gè)區(qū),-2F12F為低區(qū),13F22叨高區(qū),失火時(shí),啟動(dòng)消防按鈕,或在消防值班室手動(dòng)啟動(dòng)地下室水泵房?jī)?nèi)的消火栓泵自蓄水池吸水加壓滅火.噴淋系統(tǒng)噴頭爆裂出水,水流指示器動(dòng)作,同時(shí)報(bào)警閥動(dòng)作且由壓力開(kāi)關(guān)自動(dòng)啟動(dòng)能源中央的噴淋泵自室外消防蓄水池吸水,供水滅火.噴淋泵具有手動(dòng).自動(dòng)及消防值班室啟泵功能,在地下室設(shè)置濕式報(bào)警閥四套.,分別限制-2F5R6F11F12F1718F22F勺噴頭.噴淋系統(tǒng)的水

3、泵接合器在能源中央室外統(tǒng)一設(shè)置.消火栓系統(tǒng)共設(shè)三套水泵接合器.關(guān)鍵詞：給水排水系統(tǒng)消防系統(tǒng)水力計(jì)算AbstractThebuildingheight88.3m;Twentytwofloorsunderground,layer,andabuildingareaof33100m2,undergroundlayerfortheparkinggarage,warehouse,fortheundergroundlayerforofficespaceontheground.Thedesignscope:watersupplysystem,firehydrantsystem,sprinklersystem,

4、drainagesystem.Thebuildingheight88.3m;Twentytwofloorsunderground,layer,andabuildingareaof33100m2,undergroundlayerfortheparkinggarage,warehouse,fortheundergroundlayerforofficespaceontheground.Thedesignscope:watersupplysystem,firehydrantsystem,sprinklersystem,drainagesystem.Indoorwatersupplysystemwith

5、upsidedowntotypeverticalisdividedintothreeareaswatersupply;Undergroundgarageonthesecondfloorofirrigationareabylowfrequencyconversionequipmentsupplyrecently(forwarddirectlybythemunicipalwatersupply).Thegroundsysteminthreedistricts,1f8flowarea,directlybytheareaoflowpressurewatersupplyequipmentsupply,9

6、f16fforthecentraldistrict,theareaofhighpressurewatersupplyequipmentsupplyafterdecompression,17f21fhigharea,directlybytheareaofhighpressurewatersupplyequipment.Indoorforsewagewasteconfluence,thesanitarywaretoiletdrainageintothedrainageriser,nearbytheundergrounddischargeoutside.Outdoorforrainsewagediv

7、ersion;Garagewastewaterbythesinkdrainrainwaterpipesandprocessingbackintothehospital,buildingsewagetreatedbyseptictankbackintothemunicipaldrainagepipenetwork.Indoorplumbingfirecontrolsystemintoacircularlayout,verticalisdividedintotwoareas,2f12flowarea,13f22fhigharea,fire,startthefirebutton,orinafires

8、tationmanuallystartthebasementpumproomsincethereservoirwaterpressurefirehydrantpump.Spraynozzleburstoutofthewatersystem,waterflowindicatoraction,actionandbyapressureswitchforautomaticalarmvalveatthesametimestartthespraypumpenergycentersincetheoutdoorfirewaterreservoirwaterabsorption,waterfireextingu

9、ishing.Spraypumpwithmanual.Automaticandfirestationandpumpfunction,foursetsofwetalarmvalve.Inthebasement,eachcontrol-25f,6ff11,12ff17,18f22fofthenozzle.Spraysystemofthepumpadapteroutdoorunifiedsetinthecenteroftheenergy.Firehydrantsystemhavethreesetsofpumpadapter.Keywords:WatersupplyanddrainagesystemF

10、ireprotectionsystemHydrauliccalculation目錄1工程概況及設(shè)計(jì)任務(wù)11.1 工程概況11.2 設(shè)計(jì)條件11.3 建筑圖紙資料11.4 設(shè)計(jì)依據(jù)11.5 設(shè)計(jì)任務(wù)22室內(nèi)給水系統(tǒng)設(shè)計(jì)22.1 給水系統(tǒng)設(shè)計(jì)及分區(qū)22.2 給水管材選擇與管道的布置和敷設(shè)22.3 用水量、設(shè)計(jì)流量及管道水力計(jì)算43室內(nèi)排水系統(tǒng)設(shè)計(jì)163.1 排水系統(tǒng)選擇163.2 衛(wèi)生器具及附件163.3 排水管材及配件173.4 排水設(shè)施和管道的布置及敷設(shè)183.5 排水設(shè)計(jì)計(jì)算183.6 地下室排水系統(tǒng)設(shè)計(jì)234消火栓系統(tǒng)設(shè)計(jì)234.1 消火栓系統(tǒng)選擇234.2 消火栓系統(tǒng)計(jì)算245自動(dòng)噴水滅

11、火系統(tǒng)設(shè)計(jì)295.1 自動(dòng)噴水滅火系統(tǒng)介紹及選擇295.2 噴淋系統(tǒng)計(jì)算29結(jié)論32致謝33參考文獻(xiàn)：341工程概況及設(shè)計(jì)任務(wù)1.1 工程概況本工程為本工程為一類(lèi)高層辦公樓,地下兩層,地上二十二層.主體局部地下二層為停車(chē)庫(kù),停車(chē)數(shù)為30輛,地下一層為庫(kù)房,地上為辦公用房.建筑高度：88.30m.1.2 設(shè)計(jì)條件該樓給水水源現(xiàn)為院內(nèi)自備井,遠(yuǎn)期為市政給水.市政管網(wǎng)常年可用水頭0.35MP3室內(nèi)污廢水采用合流制,污水經(jīng)化糞池處理后就近排入市政污水管.屋面雨水經(jīng)統(tǒng)一收集后排至院內(nèi)雨水管道系統(tǒng).1.3 建筑圖紙資料1)建筑總平面定位圖1:500;2)地下兩層及地上各層平面圖1:100;3)屋頂層平面圖

12、1:100;4)建筑剖面圖1:100.1.4 設(shè)計(jì)依據(jù)1)?建筑給水排水設(shè)計(jì)標(biāo)準(zhǔn)?(GB50015-2021)2)?給水排水制圖標(biāo)準(zhǔn)?(GB/T50106-2021)3)?建筑設(shè)計(jì)防火標(biāo)準(zhǔn)?(GB50016-2021)4)?自動(dòng)噴水滅火設(shè)計(jì)標(biāo)準(zhǔn)?(GB50084-2001)(2005年版)5)?建筑滅火器配置設(shè)計(jì)標(biāo)準(zhǔn)?(GB50140-2021)6)?氣體滅火設(shè)計(jì)標(biāo)準(zhǔn)?(GB50370-2005)7)?汽車(chē)庫(kù)、停車(chē)庫(kù)、停車(chē)場(chǎng)設(shè)計(jì)防火標(biāo)準(zhǔn)?(GB50067-2021)8)?自動(dòng)噴水滅火系統(tǒng)施工及驗(yàn)收標(biāo)準(zhǔn)?(GB50261-2005)9)?虹吸式屋面雨水排水系統(tǒng)設(shè)計(jì)標(biāo)準(zhǔn)?(CECS183-2005

13、)10)甲方提供的設(shè)計(jì)任務(wù)書(shū)及相關(guān)市政資料11)相關(guān)專(zhuān)業(yè)提供的相關(guān)部門(mén)設(shè)計(jì)條件12)其他現(xiàn)行有關(guān)國(guó)家及地方的設(shè)計(jì)標(biāo)準(zhǔn)、設(shè)計(jì)標(biāo)準(zhǔn).1.5 設(shè)計(jì)任務(wù)1.5.1 室內(nèi)給水系統(tǒng)設(shè)計(jì)通過(guò)查閱相關(guān)標(biāo)準(zhǔn)確定給水方式及給水分區(qū),計(jì)算用水量,并根據(jù)最高日用水量布置給水箱；選擇給水管材、管徑,進(jìn)行水力計(jì)算,選擇生活給水泵；繪制給水系統(tǒng)平面圖、系統(tǒng)圖.1.5.2 室內(nèi)排水系統(tǒng)設(shè)計(jì)選擇適宜的排水體制,布置排水立管與通氣立管；選擇排水管材、管徑,進(jìn)行水力計(jì)算；繪制室內(nèi)排水平面圖、系統(tǒng)圖.1.5.3 建筑消防系統(tǒng)設(shè)計(jì)包括消火栓系統(tǒng)和自噴系統(tǒng)的設(shè)計(jì)；確定消火栓及噴頭的布置,計(jì)算并布置消防水箱和消防水池；進(jìn)行消防管道的水力計(jì)

14、算,選擇消防泵及其他消防設(shè)備；繪制消火栓與自噴系統(tǒng)的平面圖、系統(tǒng)圖.根據(jù)標(biāo)準(zhǔn)布置干粉滅火器.2室內(nèi)給水系統(tǒng)設(shè)計(jì)2.1 給水系統(tǒng)設(shè)計(jì)及分區(qū)依據(jù)?建筑給水排水設(shè)計(jì)標(biāo)準(zhǔn)?(GB50015-2021),室內(nèi)給水系統(tǒng)盡量利用市政管網(wǎng)壓力,當(dāng)建筑高度過(guò)高,市政管網(wǎng)壓力不夠時(shí),可采用二次加壓的形式向上供水.對(duì)于高層建筑,豎向高度大,為預(yù)防二次加壓后建筑低層配水點(diǎn)靜水壓力過(guò)大,造成壓力浪費(fèi)和管道磨損,往往采用豎向分區(qū)給水的供水方式.本次設(shè)計(jì)總體采用上行下給的給水方式.建筑總高度為88.30m,市政管網(wǎng)供水壓力為0.35MPa地下二層車(chē)庫(kù)沖洗用水近期由低區(qū)變頻設(shè)備供給(遠(yuǎn)期由市政水直接供給)地上系統(tǒng)分三個(gè)區(qū),1

15、F8F為低區(qū),由低區(qū)加壓供水設(shè)備直接供給,9F16F為中區(qū),由高區(qū)加壓供水設(shè)備減壓后供給,17F21F為高區(qū),由高區(qū)加壓供水設(shè)備直接供給.低區(qū)給水系統(tǒng)入口處所需壓力0.42MPa.高區(qū)給水系統(tǒng)入口處所需壓力0.92MPa.2.2 給水管材選擇與管道的布置和敷設(shè)2.2.1 管材附件和水表?yè)?jù)標(biāo)準(zhǔn)對(duì)管材的要求,通過(guò)比照各個(gè)給水管材的優(yōu)缺點(diǎn),并考慮了管材的衛(wèi)生、外形、安裝及經(jīng)濟(jì)等因素,確定本次設(shè)計(jì)的室內(nèi)生活給水管材,橫支管選用PP-R管,立第2頁(yè)管采用鋼塑管.給水加壓系統(tǒng),應(yīng)根據(jù)水泵揚(yáng)程、管道走向、環(huán)境噪音要求等因素,設(shè)置水錘消除裝置.1)給水管道的以下部位應(yīng)設(shè)置閥門(mén)：(1)入戶(hù)管和立管；(2)水表前

16、；(3)水池、水箱、加壓泵、換熱器、減壓閥、管道倒流預(yù)防器等根據(jù)安裝要求需配置閥門(mén)處；(4)居住和公共建筑中,從干管或立管接出的配水支管上宜設(shè)閥門(mén),接有3個(gè)及3個(gè)以上配水點(diǎn)的配水支管上應(yīng)設(shè)置閥門(mén).2)給水管道閥門(mén)的選型和設(shè)置,應(yīng)符合以下原那么：(1)閥門(mén)宜設(shè)置在易于操作和方便檢修的地方.(2)給水管道上使用的各類(lèi)閥門(mén)的材質(zhì),應(yīng)耐腐蝕和耐壓；根據(jù)管徑大小和所承受壓力的等級(jí)及使用溫度,可采用全銅、全不銹鋼、鐵殼銅芯和全塑閥門(mén)等.(3)管徑DNC50mm寸,宜采用截止閥；管徑DN>50mm寸,宜采用蝶閥或閘閥.(4)要求水流阻力小的部位(如水泵吸水管上),宜采用閘閥.(5)安裝空間小的場(chǎng)所,宜

17、采用蝶閥.(6)在水流雙向流動(dòng)的管段上,應(yīng)采用蝶閥或閘閥,不得使用截止閥.3)給水管道的以下管段上應(yīng)設(shè)置止回閥：(1)當(dāng)引入管超過(guò)一條,且在建筑物內(nèi)連通的每條引入管上；(2)密閉的水加熱器等設(shè)備的進(jìn)水管上；(3)水泵出水管及與水泵并聯(lián)的旁通管上；(4)可能發(fā)生倒轉(zhuǎn)的水表后的管段上；(5)冷熱水混合器的冷、熱水進(jìn)水管上；(6)進(jìn)出水管合用一條管道的水箱、水塔、高位水池的出水管段上.4)建筑物的入戶(hù)管應(yīng)設(shè)置水表,水表的選型、安裝應(yīng)符合以下要求：(1)住宅的分戶(hù)水表宜相對(duì)集中讀數(shù),且宜設(shè)置于戶(hù)外；對(duì)設(shè)在戶(hù)內(nèi)的水表,宜采用遠(yuǎn)傳水表或IC卡水表等智能化水表.(2)接管直徑小于等于50mnW,應(yīng)采用旋翼式

18、水表,螺紋連接；大于50mniM,應(yīng)采用螺翼式水表,法蘭連接；當(dāng)用水量變化很大時(shí),應(yīng)采用復(fù)式水表.(3)水表應(yīng)裝設(shè)在觀(guān)察方便、不致凍結(jié)、不受污染和損壞的地方.(4)水表應(yīng)按其產(chǎn)品說(shuō)明書(shū)的要求安裝.(5)各種有累計(jì)水量功能的流量計(jì),均可替代水表.2.2.2管道的布置和敷設(shè)本設(shè)計(jì)中給水管道采用暗設(shè)的形式.室內(nèi)給水管埋地敷設(shè)時(shí)與排水管之間的最小凈距,平行埋設(shè)時(shí)應(yīng)不小于0.5m,交叉埋設(shè)時(shí)不應(yīng)小于0.15m,且給水管應(yīng)在排水管的上面.引入管與排水管水平凈距不應(yīng)小于1.0m.給水管道穿越以下部位或接管時(shí),應(yīng)設(shè)置防水套管：(1)穿越地下室或地下構(gòu)筑物的外墻處；(2)穿越屋面處；(3)穿越鋼筋混凝土水池的壁

19、板或底板連接管道時(shí).管道在布置時(shí)應(yīng)考慮與墻、柱的距離,用水的要求,保證水力條件良好,管線(xiàn)布置盡量滿(mǎn)足經(jīng)濟(jì)性,協(xié)調(diào)好各種因素的關(guān)系,具體布置情況見(jiàn)平面圖.2.3用水量、設(shè)計(jì)流量及管道水力計(jì)算2.3.1 用水量計(jì)算生活用水量受當(dāng)?shù)貧夂颉⑸盍?xí)慣、建筑物使用性質(zhì)、衛(wèi)生器具和用水設(shè)備的完善程度以及水價(jià)等多種因素的影響,故用水量不均勻.生活用水量可根據(jù)國(guó)家制定的用水定額、小時(shí)變化系數(shù)和用水單位數(shù)等,按下式計(jì)算：Qd=m.Qh=Qp/KhQp=Qd/T式中Qd最高日用水量,L/d;m用水單位數(shù),每班人數(shù)；qd最高日生活用水定額,L/人dQp平均小時(shí)用水量,L/h;T建筑物的用水時(shí)間；Kh小時(shí)變化系數(shù),取1

20、.3Qh最大時(shí)用水量,L/h根據(jù)建筑類(lèi)型,查?建筑給水排水設(shè)計(jì)標(biāo)準(zhǔn)?(GB50015-2003)表3.1.10可知生活用水量標(biāo)準(zhǔn)1=3050L/人班,時(shí)變化系數(shù)Kh=1.21.5,使用時(shí)間810h.本設(shè)計(jì)取生活用水量標(biāo)準(zhǔn)qd=40L/人班；時(shí)變化系數(shù)Kh=1.3,使用時(shí)數(shù)為9小時(shí)c按上述公式計(jì)算得最高日用水量為138m3/d,最大時(shí)用水量為11.8m3/h2.3.2 設(shè)計(jì)秒流量由標(biāo)準(zhǔn)得,得該建筑生活給水設(shè)計(jì)秒流量計(jì)算公式如下：qg=02,Ng式中qg一計(jì)算管段的給水設(shè)計(jì)秒流量(L/s);Ng一計(jì)算管段的衛(wèi)生器具給水當(dāng)量總數(shù)；«一一根據(jù)建筑物用途而定的系數(shù),取1.5.注：1)如計(jì)算值小

21、于該管段上一個(gè)最大衛(wèi)生器具給水額定流量時(shí),應(yīng)采用一個(gè)最大的衛(wèi)生器具給水額定流量作為設(shè)計(jì)秒流量.2)計(jì)算值大于該管段上按衛(wèi)生器具給水額定流量累加所得流量值時(shí),應(yīng)按衛(wèi)生器具給水額定流量累加所得流量值計(jì)算.3)有大便器延時(shí)自閉沖洗閥的給水管段,大便器延時(shí)自閉沖洗閥的給水當(dāng)量均以0.5計(jì).計(jì)算所得qg附加1.1L/S的流量后,為該管段的給水設(shè)計(jì)秒流量.查?建筑給排水設(shè)計(jì)標(biāo)準(zhǔn)?GB50015-2021馬衛(wèi)生器具的給水額定流量、當(dāng)量、連接管徑和最低工作壓力如表2-1表2-1衛(wèi)生器具的給水額定流量、當(dāng)量、連接管公稱(chēng)管徑和最低工作壓力序號(hào)額定流量給水配件名稱(chēng)(L/s)連接管公稱(chēng)管最低工作壓力當(dāng)昌徑三里(MPa

22、)DN(mm)1洗滌盆、拖布盆、盥洗槽：?jiǎn)伍y水嘴0.150.20單閥水嘴0.300.400.751.00151.52.0200.0502混合水嘴0.150.20(0.14)洗臉盆：?jiǎn)伍y水嘴0.150.751.0015(0.70)0.75150.050混合水嘴0.15(0.10)0.75(0.50)15洗手盆：3感應(yīng)水嘴0.100.5150.050混合水嘴0.15(0.10)0.75(0.5)155淋浴器混合閥0.15(0.10)0.75(0.50)150.0500.10大便器：6沖洗水箱浮球閥0.10.50150.020延時(shí)自閉式?jīng)_洗閥1.26.00250.1000.150小便器：手動(dòng)或自動(dòng)自

23、閉式?jīng)_洗70.100.50150.0501»0.100.50150.020自動(dòng)沖洗水箱進(jìn)水閥注：1表中括弧內(nèi)的數(shù)值系在有熱水供給時(shí),單獨(dú)計(jì)算冷水或熱水時(shí)使用.2當(dāng)浴盆上附設(shè)淋浴器時(shí),或混合水嘴有淋浴器轉(zhuǎn)換開(kāi)關(guān)時(shí),其額定流量和當(dāng)量只計(jì)水嘴不計(jì)淋浴器.但水壓應(yīng)按淋浴器計(jì).3家用燃?xì)鉄崴魉杷畨簯?yīng)按產(chǎn)品要求和熱水供給系統(tǒng)最不利配水點(diǎn)所需工作壓力確定.2.3.3 給水水力計(jì)算1管道沿程水頭損失'=il式中hi沿程水頭損失kPa;l管段計(jì)算長(zhǎng)度m;i管段單位長(zhǎng)度水頭損失kPa/m,i可用下式計(jì)算：1.854871.85i=105Chdjqg式中dj管道計(jì)算內(nèi)徑m;qg一一計(jì)算管段的給

24、水設(shè)計(jì)秒流量L/s;Ch海橙一威廉系數(shù),各種塑料管、內(nèi)襯涂塑管取140o2管道局部水頭損失本次設(shè)計(jì)計(jì)算中,管道局部水頭損失為該管段沿程水頭損失的30%,按下式計(jì)算:hf=30%hi.3給水系統(tǒng)所需供水水壓建筑給水系統(tǒng)設(shè)計(jì)中為了滿(mǎn)足各給水點(diǎn)潔具所需壓力,在計(jì)算時(shí)需要以滿(mǎn)足最不利點(diǎn)衛(wèi)生器具的供水壓力為供水水壓,即以一條最不利管線(xiàn)來(lái)進(jìn)行計(jì)算,公式如下:H=HiH2H3H4式中:Hi給水系統(tǒng)所需白供水水壓,KPa;入戶(hù)管起點(diǎn)到最不利給水點(diǎn)位置高度所需要的靜水壓,KPa；H2入戶(hù)管起點(diǎn)到最不利配水點(diǎn)的給水管路沿程與局部水頭損失之和,KPa；H3水流通過(guò)水表時(shí)的水頭損失,KPa;H4最不利給水點(diǎn)潔具所需的

25、工作壓力,KPa.其中水流經(jīng)所選水表的水頭損失計(jì)算公式為:H3Kb式中H3水流通過(guò)水表時(shí)的水頭損失,KPa;Qb計(jì)算管段的給水設(shè)計(jì)流量,/h;KB水表的特性系數(shù)可按下式計(jì)算:KbQ2Jmax100式中Qmax水表的最大設(shè)計(jì)流量,3m/ho(4)各給水系統(tǒng)給水水力計(jì)算表1)低區(qū)給水水力計(jì)算圖2-1低區(qū)給水計(jì)算圖計(jì)算結(jié)果見(jiàn)表2-2.表2-2生活給水系統(tǒng)低區(qū)水力計(jì)算表計(jì)算業(yè)有T里設(shè)計(jì)管徑管段管段沿程水管段總數(shù)秒流里DN流速損失i長(zhǎng)度頭損失編PNgqg(L/s)(mmv(m/s)(kPa/m)L(m)hy=iL(kPa)1-20.51.20401.590.0990.10.012-30.51.20401

26、.590.0990.90.0893-411.30401.720.1150.90.1034-51.51.40501.1840.0441.80.0795-61.51.40501.1840.0441.70.0756-71.51.40501.1840.0441.40.0627-81.51.40501.1840.0441.70.07536-370.750.15200.8050.0640.10.00637-380.750.15200.8050.0640.80.05138-391.50.30201.610.2290.40.09239-401.50.30201.610.2291.10.25240-81.50.

27、30201.610.2290.70.1608-931.70501.440.0630.30.01941-420.50.10200.540.030.10.00342-430.50.10200.540.030.90.027管段沿程水頭損失累計(jì)hy(kPa)0.0180.0730.1740.2660.3530.4240.5110.0020.3400.6621.5482.1122.6410.0951.90043-4410.30201.070.1080.90.0972.28044-451.50.30201.6110.2290.30.0692.48045-461.50.30201.6110.2291.80.

28、4133.6846-91.50.30201.6110.2291.50.3444.6729-104.51.84501.5530.0730.30.0227.33310-114.51.84501.5530.0730.60.0447.37247-4810.2151.0740.1082.10.2270.40548-1110.2151.0740.1081.30.1410.65611-125.51.904701.0180.0250.50.0138.04149-5010.2151.0740.1080.10.0110.01950-5110.2151.0740.1080.40.0430.09651-5210.21

29、51.0740.1081.00.1080.28952-1210.2151.0740.1081.40.1510.55912-136.51.965701.050.0272.70.0738.67653-540.51.20401.590.0990.90.0890.05554-5511.30401.7220.1150.60.0690.72255-5611.30401.7220.1151.80.2060.92456-5711.30401.7220.1151.90.2181.13757-5811.30401.7220.1150.60.0691.80458-5911.30401.7220.1151.30.14

30、91.95059-6011.30401.7220.1150.90.1032.05192-930.750.30151.7220.1930.010.0190.01993-940.750.30151.490.1931.00.1930.21294-951.50.42201.120.8051.00.8051.01795-961.50.42201.120.8051.10.8861.90396-601.50.42201.120.8050.90.7252.62860-132.51.10701.120.8051.31.0475.72613-1491.84700.470.0421.40.05914.46114-1

31、591.84700.470.0422.50.10514.56615-1691.84700.470.0422.80.11814.68416-1791.84700.470.0420.30.01314.69761-620.50.21151.040.9500.010.0950.09562-630.50.21151.040.9500.70.6650.76063-640.50.21151.040.9500.070.0670.82797-640.50.21151.040.9500.30.2851.11264-651.50.37200.940.6670.50.3341.44665-661.50.37200.9

32、40.6670.40.2671.71398-991.20.33151.630.2250.10.0230.02399-661.20.33151.630.2250.50.1130.13666-672.70.49250.720.2650.20.0531.90267-682.70.49250.720.2651.50.3982.30068-692.70.49250.720.2651.30.3452.64569-703.450.56320.540.1210.50.0612.70670-713.450.56320.540.1211.10.1332.81971-723.450.56320.540.1210.6

33、0.0732.89272-173.450.56320.540.1210.20.0242.91617-1812.451.90700.500.0450.30.01417.627Hi=27.4-(-2.6)+1.0=31mH2O=310Kpa(其中1.0m是大便器自閉式?jīng)_洗閥的安裝高度)H2=1.3Ehy=1.3X17.627=22.915kPaH4=100kPa(即最不利點(diǎn)大便器自閉式?jīng)_洗閥的最低工作壓力)水表的水頭損失計(jì)算：因辦公樓建筑的用水量較小,所以水表選擇旋翼式LXS32C式水表,q=1.52m3/h,其公稱(chēng)流量6m3/h>qg,最大流量為12m3/h,所以水表的水頭損失為：_2Kb

34、=Qmax.100=1.44hq=g2/Kb=(1.51)2/4=0.57,滿(mǎn)足正常用水時(shí)<24.5的要求,所以H3=1.58kPa由上述所得低區(qū)給水系統(tǒng)入口所需壓力H為：H=H1H2H3H4=310+22.915+1.58+100=434.495Kpa=0.43Mpa低區(qū)給水設(shè)計(jì)秒流量為qg=03.114.85=3.22L/S加壓設(shè)備的選?。涸鰤罕玫膿P(yáng)程HpHiH2H3p式中Hp水泵所需揚(yáng)程,kpa;H供水管網(wǎng)最不利點(diǎn)與水泵吸水井最低水位的高差或與供水管網(wǎng)最小壓力的差值,mH2O;H2水泵吸水口到管網(wǎng)最不利點(diǎn)的所有水頭損失,mH2O.H3管網(wǎng)最不利點(diǎn)的工作壓力,mH2O2；帶入數(shù)據(jù)得：

35、Hp=31+2.3+10=43.3mp按給水設(shè)計(jì)秒流量q=3.22L/s,H=45m,選用MSL型立式多級(jí)離心泵兩臺(tái),一用一備水泵性能：Q=5.21L/s,H=45m,功率為15kw.2) 17F21F高區(qū)給水水力計(jì)算高區(qū)最不利點(diǎn)為高位水箱,流出水頭取40kPao所需壓力：H=(85.42.6)1040=920kP=0.92MPa高區(qū)給水水壓最大的是17層衛(wèi)生間B的洗手池按標(biāo)準(zhǔn)應(yīng)不大于0.45MPa4r-t*高區(qū)給水水力計(jì)算系統(tǒng)圖22計(jì)算結(jié)果見(jiàn)表2-3.表2-3生活給水系統(tǒng)高區(qū)水力計(jì)算表管段編R業(yè)有T里總數(shù)Ng設(shè)計(jì)秒流里qg(L/s)管徑每米管長(zhǎng)水頭損失i(kPa/m)管段長(zhǎng)度L(m)管段沿程

36、水頭損失hy=iL(kPa)管段沿程水頭損失Why(kPa)DN(mm流速v(m/s)69-703.450.56320.540.1210.50.0610.06170-713.450.56320.540.1211.10.1330.19471-723.450.56320.540.1210.60.0730.26772-173.450.56320.540.1210.20.0240.29117-1812.451.90700.500.0450.30.0140.305Hi=61.8-(-2.6)+0.8=65.2mH2O=652Kpa(其中0.8m是十七層洗手盆水龍頭的安裝高度)H2=1.3Ehy=1.3X

37、0.305=0.397kPaH4=50kPa(十七層洗手盆水龍頭最低工作壓力)水表采用旋翼式LXS32C式水表,q=1.51m3/h,其公稱(chēng)流量6m3/h>qg,最大流量為12m3/h,故水表的水頭損失為：_2.一Kb=Qmax.100=1.44hq=g2/Kb=(1.51)2/4=0.57,滿(mǎn)足要求,所以H3=1.58kPa由上述所得高區(qū)給水系統(tǒng)入口所需壓力H為：H=H1H2H3H4=652+0.397+1.58+50=703.977Kpa=0.70MPa0.92-0.70=0.22MPa<0.45MPa按給水設(shè)計(jì)秒流量q=3.78L/s,H=92m,選用QSD4-55/6-1.

38、1邊立式多級(jí)離心泵兩臺(tái),一用一備.水泵性能：Q=5.21L/s,H=92m,功率為45kw.所以不需設(shè)減壓閥3) 9F16F中區(qū)給水水力計(jì)算:中區(qū)給水水力計(jì)算簡(jiǎn)圖2-3:中區(qū)水計(jì)算簡(jiǎn)圖23計(jì)算結(jié)果見(jiàn)表2-4.表2-4生活給水系統(tǒng)中區(qū)水力計(jì)算表管段編R業(yè)有T里總數(shù)Ng設(shè)計(jì)秒流里qg(L/s)管徑DN(mm流速v(m/s)損失i(kPa/m)管段長(zhǎng)度L(m)管段沿程水頭損失hy=iL(kPa)管段沿程水頭損失Why(kPa)1-20.51.20401.590.0990.10.010.0182-30.51.20401.590.0990.90.0890.0733-411.30401.720.1150.

39、90.1030.1744-51.51.40501.1840.0441.80.0790.2665-61.51.40501.1840.0441.70.0750.3536-71.51.40501.1840.0441.40.0620.4247-81.51.40501.1840.0441.70.0750.51136-370.750.15200.8050.0640.10.0060.00237-380.750.15200.8050.0640.80.0510.34038-391.50.30201.610.2290.40.0920.66239-401.50.30201.610.2291.10.2521.5484

40、0-81.50.30201.610.2290.70.1602.1128-931.70501.440.0630.30.0192.64141-420.50.10200.540.030.10.0030.09542-430.50.10200.540.030.90.0271.90043-4410.30201.070.1080.90.0972.28044-451.50.30201.6110.2290.30.0692.48045-461.50.30201.6110.2291.80.4133.6846-91.50.30201.6110.2291.50.3444.6729-104.51.84501.5530.0

41、730.30.0227.33310-114.51.84501.5530.0730.60.0447.37247-4810.2151.0740.1082.10.2270.40548-1110.2151.0740.1081.30.1410.65611-125.51.904701.0180.0250.50.0138.04149-5010.2151.0740.1080.10.0110.01950-5110.2151.0740.1080.40.0430.09651-5210.2151.0740.1081.00.1080.28952-1210.2151.0740.1081.40.1510.55912-136

42、.51.965701.050.0272.70.0738.67653-540.51.20401.590.0990.90.0890.05554-5511.30401.7220.1150.60.0690.72255-5611.30401.7220.1151.80.2060.92456-5711.30401.7220.1151.90.2181.13757-5811.30401.7220.1150.60.0691.80458-5911.30401.7220.1151.30.1491.95059-6011.30401.7220.1150.90.1032.05192-930.750.30151.7220.1

43、930.010.0190.01993-940.750.30151.490.1931.00.1930.21294-951.50.42201.120.8051.00.8051.01795-961.50.42201.120.8051.10.8861.90396-601.50.42201.120.8050.90.7252.62860-132.51.10701.120.8051.31.0475.72613-1491.84700.470.0421.40.05914.46114-1591.84700.470.0422.50.10514.56615-1691.84700.470.0422.80.11814.6

44、8416-1791.84700.470.0420.30.01314.69761-620.50.21151.040.9500.010.0950.09562-630.50.21151.040.9500.70.6650.76063-640.50.21151.040.9500.070.0670.82797-640.50.21151.040.9500.30.2851.11264-651.50.37200.940.6670.50.3341.44665-661.50.37200.940.6670.40.2671.71398-991.20.33151.630.2250.10.0230.02399-661.20

45、.33151.630.2250.50.1130.13666-672.70.49250.720.2650.20.0531.90267-682.70.49250.720.2651.50.3982.30068-692.70.49250.720.2651.30.3452.64569-703.450.56320.540.1210.50.0612.70670-713.450.56320.540.1211.10.1332.81971-723.450.56320.540.1210.60.0732.89272-173.450.56320.540.1210.20.0242.91617-1812.451.90700

46、.500.0450.30.01417.627中區(qū)供水由高區(qū)供水加壓設(shè)備供給,中區(qū)壓力最大的是16層洗手盆壓力為:H=HiH2H3=632.207kPa所以設(shè)減壓閥,閥后壓力為0.1MPa4)地下二層車(chē)庫(kù)沖洗用水水力計(jì)算目圖2-4地下二層給水計(jì)算圖計(jì)算結(jié)果見(jiàn)表2-5.表2-5生活給水系統(tǒng)低區(qū)水力計(jì)算表管段編p業(yè)有T里總數(shù)Ng秒流里qg(L/s)DN(mn)內(nèi)徑(mm流速v(m/s)水頭損失i(kPa/m)管段長(zhǎng)度L(m)頭損失hy=iL(kPa)水頭損失why(kPa)1-20.50.212015.40.560.2070.40.0830.0832-30.50.212015.40.560.2074

47、0.8280.9113-40.50.212015.40.560.20716.93.4984.4094-50.50.212015.40.560.2071.80.3734.7825-610.32519.40.450.1131.30.1474.9296-710.32519.40.450.1133.10.3515.2807-81.50.372519.40.580.16215.62.5277.8078-920.423226.20.410.07212.40.8938.7009-1020.423226.20.410.0724.40.3179.01710-1120.423226.20.410.0727.60.

48、5479.564H1=7.7-1.0-2.6=5.1m=51Kpa其中1.0m是地下室水龍頭安裝高度H2=1.3Ehy=1.3X9.564=12.4kPaH4=50kPa即最不利點(diǎn)水龍頭的最低工作壓力水表的選擇進(jìn)戶(hù)管上安裝水表.進(jìn)戶(hù)管上水表選用LXC-20C旋翼濕式水表,過(guò)載流量33為5m/h,常用流量為2.5m/h0H3=Q=252=28.48Kpa3max乙2100100所以計(jì)算給水系統(tǒng)所需壓力H為:H=H1+H2+H3+H4=51+12.4+28.48+50=141.88Kpa=0.142Mpa<0.45Mpa所以市政給水管壓力滿(mǎn)足地下二層車(chē)庫(kù)沖洗用水所需壓力,且滿(mǎn)足給水點(diǎn)凈水壓力不大于0.45的要求不需要設(shè)置減壓閥.3室內(nèi)排水系統(tǒng)設(shè)計(jì)3.1 排水系統(tǒng)選擇室內(nèi)排水體制有分流制與合流制兩種,根據(jù)設(shè)計(jì)標(biāo)準(zhǔn)、該建筑特征以及設(shè)計(jì)要求,得出本次設(shè)計(jì)的排水體質(zhì)為污廢合流制排水系統(tǒng),生活污水由每層設(shè)置排水立管排入室外化糞池內(nèi),經(jīng)處理后再排入城市排水管網(wǎng),地下室排水經(jīng)潛污水泵提升再排出,地下室沖洗汽車(chē)的含泥沙和含油廢水應(yīng)設(shè)隔油沉沙池經(jīng)處理后再排放,雨水排水系統(tǒng)單獨(dú)設(shè)置.3.2 衛(wèi)生器具及附件1、坐便器應(yīng)優(yōu)先選用沖洗水量為6升/次的產(chǎn)