DB64+1056-2023+預(yù)制直埋復(fù)合塑料保溫供熱管道應(yīng)用技術(shù)規(guī)程

ICS83.140.30CCSICS83.140.30CCSG33寧夏回族自治區(qū)地方標(biāo)準(zhǔn)DB64/T1056—2023DB64/T1056-2014預(yù)制直埋復(fù)合塑料保溫供熱管道應(yīng)用技術(shù)規(guī)程TechnicalspecificationfortheapplicationofprefabricatedTechnicalspecificationfortheapplicationofprefabricateddirectburiedcompositeplasticinsulationandheatingpipes2023080920231109寧夏回族自治區(qū)市場(chǎng)監(jiān)督管理廳發(fā)布目 次前言 II3范引文件 3語(yǔ)定義 34復(fù)保管道 4PE-RTⅡ管件 6復(fù)保管標(biāo)運(yùn)輸貯存 6計(jì)求 6一規(guī)定 6水計(jì)算 7管的置敷設(shè) 8管設(shè)應(yīng)力 9建熱入管門及件計(jì) 11保要求 11裝施工 11一規(guī)定 11溝開挖 12管連與裝 13接保溫 13溝回填 13驗(yàn)驗(yàn)收 14管壓試驗(yàn) 14管清洗 15系試行 15工驗(yàn)收 15附錄A（料）復(fù)溫管的力算 17附錄B（范）管熔對(duì)焊方法 28附錄C（范）管熔承焊連方法 33前 言本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。本文件代替DB64/T1056-2014《預(yù)制直埋復(fù)合塑料保溫供熱管道應(yīng)用技術(shù)規(guī)程》，與DB64/T1056-2014——修改了產(chǎn)品的適用范圍；——修改了術(shù)語(yǔ)和定義；——修改了材料的規(guī)格尺寸至dn500mm；——增加了聚氯乙烯外護(hù)管的技術(shù)要求；——增加了PE-RTⅡ型管材及管件的顏色外觀要求；——修改了復(fù)合保溫管道標(biāo)志、存儲(chǔ)及運(yùn)輸要求；——增加了水力計(jì)算與規(guī)格選型；——修改了復(fù)合保溫管道最小覆土深度；——增加了45℃及60℃冬季供暖條件分級(jí)和最大允許工作壓力選型；——修改了管道連接的應(yīng)用范圍。本文件主要起草人：李永峰、謝翌鶴、馬立新、魚江濤、孫儷銘、雒建伍、王吉軍、劉杰、趙勇、張兆元、趙明亮、邱林、李志龍、馬金星、毛俊俊、趙建新、惠康康、楊迪、張會(huì)明、趙雪巖、劉瀟、陳海濤、劉博文、周文怡、張小剛。本文件所代替標(biāo)準(zhǔn)的歷次版本發(fā)布情況為:——DB64/T1056-2014。預(yù)制直埋復(fù)合塑料保溫供熱管道應(yīng)用技術(shù)規(guī)程范圍（85（GB/T1576工業(yè)鍋爐水質(zhì)GB5749生活飲用水衛(wèi)生標(biāo)準(zhǔn)GB/T6111流體輸送用熱塑性塑料管道系統(tǒng)耐內(nèi)壓性能的測(cè)定GB/T9124.1鋼制管法蘭第1部分：PN系列GB/T19278GB/T19278GB/T19806GB/T19808塑料管材和管件公稱外徑大于或等于90mm的聚乙烯電熔組件的拉伸剝離試驗(yàn)GB/T19810聚乙烯(PE)管材和管件熱熔對(duì)接接頭拉伸強(qiáng)度和破壞形式的測(cè)定GB/T28799.3冷熱水用耐熱聚乙烯(PE-RT)管道系統(tǒng)第3部分:管件GB/T40402聚乙烯外護(hù)管預(yù)制保溫復(fù)合塑料管GB/T50942鹽漬土地區(qū)建筑技術(shù)規(guī)范GB55010供熱工程項(xiàng)目規(guī)范GB55032建筑與市政工程施工質(zhì)量控制通用規(guī)范CJJ28城鎮(zhèn)供熱管網(wǎng)工程施工及驗(yàn)收規(guī)范CJJ/T34城鎮(zhèn)供熱管網(wǎng)設(shè)計(jì)標(biāo)準(zhǔn)CJJ/T81城鎮(zhèn)供熱直埋熱水管道技術(shù)規(guī)程TSGD2002燃?xì)庥镁垡蚁┕艿篮附蛹夹g(shù)規(guī)則3術(shù)語(yǔ)和定義GB/T19278界定的以及下列術(shù)語(yǔ)和定義適用于本文件。GB50011建筑抗震設(shè)計(jì)規(guī)范GB50015建筑給水排水設(shè)計(jì)標(biāo)準(zhǔn)GB50025濕陷性黃土地區(qū)建筑規(guī)范GB50112膨脹土地區(qū)建筑技術(shù)規(guī)范3.1合溫道 compositeinsulationpipe以耐熱聚乙烯（PE-RTⅡ）樹脂經(jīng)擠出成型為工作內(nèi)管，聚氨酯或擠塑聚苯乙烯材料為保溫層，聚乙烯或聚氯乙烯材料為外護(hù)層，組成的三層一體式的復(fù)合保溫管道。3.2無(wú)補(bǔ)敷設(shè) installationnocompensator3.3管件fitting用于工作管道連接的附件，可以分為承插熱熔管件、電熔管件、熱熔管件、機(jī)械連接管件。3.4不圓度out-ofroundness在工作管材或管件的管狀部位的同一截面上，最大和最小外徑測(cè)量值之差，或最大或最小內(nèi)徑測(cè)量值之差。3.5公稱外徑nominaloutsidediameter本文件中的公稱外徑專指復(fù)合保溫管道的工作內(nèi)管外徑的最小值。3.6外護(hù)管outprotectingpipe強(qiáng)度和可靠的防水性能。3.7保溫層insulatinglayer強(qiáng)度和可靠的防水性能。3.7保溫層insulatinglayer在工作管與外護(hù)管之間，為保持管道輸送介質(zhì)溫度而設(shè)置的保溫材料層。3.8插口管件spigotendfitting用于工作內(nèi)管插接連接的PE-RTⅡ型管件，插口端的連接內(nèi)徑等于相應(yīng)配套使用工作管材的公稱外徑（dn）。3.9熱熔對(duì)接焊接buttfusionjointing3.10電熔承插焊接electricfusionjointing4材料PE-RTGB/T404022GB/T40402標(biāo)準(zhǔn)進(jìn)行出廠檢驗(yàn)項(xiàng)目復(fù)檢，復(fù)檢合格后方可使用。PE-RT1表1復(fù)合保溫管道最小保溫層厚度要求序號(hào)工作管公稱外徑（mm）保溫層最小厚度（mm）1dn≤110202110＜dn≤200253200＜dn≤355354≥40045注：除設(shè)計(jì)另有規(guī)定，否則按此表執(zhí)行。2表2復(fù)合保溫管道聚氯乙烯外護(hù)管的規(guī)格尺寸序號(hào)外護(hù)管外徑（mm）外護(hù)管最小壁厚（mm）1752.32802.53902.641102.751253.061403.071603.081803.292003.2102253.5112503.9122654.2133154.9143405.2153555.6164006.3174507.0185007.84.1.64.1.6復(fù)合保溫管道的聚氯乙烯外護(hù)管物理和力學(xué)性能符合表3的規(guī)定。表3聚氯乙烯外護(hù)管物理力學(xué)性能序號(hào)項(xiàng)目要求1密度≤1.55g/cm32縱向回縮率≤5%3拉伸屈服應(yīng)力≥38MPa4維卡軟化溫度≥80℃5落錘沖擊試驗(yàn)1kg，1m無(wú)破裂160mm4.0mm；160mm≤400mm6.0mm；400mm10.0mm。PE-RTPE-RTGB/T28799.3PE-RTPE-RT251m，3m。GB50011、GB50025GB50112、GB/T50942GB55010、GB55032CJJ/T3485CJJ/T34GB/T1576GB5749帶GB5001560Pa/m～100Pa/m300Pa/m3.0m/s。50kPa。（1）i0.011d4.87q1.85j g (1)式中：i ——dj——(m)；qg——管道的設(shè)計(jì)流量(m3/s)。12%～18A。4表4直埋復(fù)合保溫管道最小覆土深度工作管公稱外徑（mm）機(jī)動(dòng)車道（m）非機(jī)動(dòng)車道（m）≤1250.80.6140～3151.00.7355～5001.20.9注：管道布置最小深度不符合此表或穿越機(jī)動(dòng)車道時(shí)，應(yīng)增加外護(hù)套管或采用混凝土防護(hù)。55.3.4濕陷性黃土地區(qū)復(fù)合保溫管道與建筑物之間的距離應(yīng)根據(jù)建筑物重要性及具體情況，以及場(chǎng)地濕陷等級(jí)和排水情況等確定，并應(yīng)符合表6的規(guī)定：表5復(fù)合保溫管道直埋敷設(shè)與相鄰設(shè)施的最小凈距5.3.4濕陷性黃土地區(qū)復(fù)合保溫管道與建筑物之間的距離應(yīng)根據(jù)建筑物重要性及具體情況，以及場(chǎng)地濕陷等級(jí)和排水情況等確定，并應(yīng)符合表6的規(guī)定：名稱最小水平凈距(m)最小垂直凈距(m)給排水管1.50.15燃?xì)夤艿缐毫Α?00kPa1.00.15壓力≤800kPa1.50.15壓力>800kPa2.00.15壓縮空氣或CO2管1.00.15排水盲溝溝邊1.50.50乙炔、氧氣管1.50.25公路鐵路坡底腳1.0-地鐵、隧道結(jié)構(gòu)5.00.80電氣鐵路接觸網(wǎng)電桿基礎(chǔ)3.0-建筑物基礎(chǔ)公稱直徑≤250mm2.5-公稱直徑≥300mm3.0-電纜通訊電纜管塊1.00.30電力及控制電纜≤35kV2.00.50≤110kV2.01.00表6管道與建筑物間的防護(hù)距離各類建筑地基濕陷等級(jí)對(duì)應(yīng)防護(hù)距離（m）ⅠⅡⅢⅣ甲--8～911～12乙56～78～910～12丙456～78～9丁-567注：小于本表的規(guī)定。60°～90ZGB5002550mm相同；固定墩設(shè)計(jì)應(yīng)符合CJJ/T81PE-RTCJJ/T81PE-RT075.4.55.4.5PE-RT8。表8PE-RTCJJ/T81FAE103 (2)式中：F ——（kN）；E ——PE-RT（MPa）；表7供熱管道運(yùn)行條件分類運(yùn)行條件分類運(yùn)行條件設(shè)計(jì)溫度TD（℃）TD下的運(yùn)行時(shí)間）（年）最高運(yùn)行溫度Tmax）（℃）Tmax下的運(yùn)行時(shí)間（年）70℃生活熱水704980145℃供暖200.5604.53020452560℃供暖2012.5702.54025601075℃供暖20147515025601085℃供暖201485150257010注：當(dāng)供熱管網(wǎng)運(yùn)行的設(shè)計(jì)溫度和時(shí)間不同于本表，或系統(tǒng)的最高運(yùn)行溫度超過(guò)本表時(shí)，本表不適用，應(yīng)咨詢管道供應(yīng)商，重新計(jì)算設(shè)計(jì)應(yīng)力；保溫復(fù)合塑料管道70℃生活熱水45℃/50年冬季供暖60℃/50年冬季供暖75℃/50年冬季供暖85℃/50年冬季供暖設(shè)計(jì)應(yīng)力（MPa）3.725.124.394.023.50規(guī)格最大允許工作壓力，MPaS4/SDR90.931.271.091.00.88S5/SDR110.741.020.880.80.70S6.3/SDR13.60.590.810.700.630.56S8/SDR170.460.630.540.500.44注：設(shè)計(jì)應(yīng)力根據(jù)表7的分類要求，采用熱水塑料管道累計(jì)損傷法計(jì)算（參見GB/T18991），已考慮到設(shè)計(jì)安全系數(shù)為1.25～1.5。A ——（㎡）；λ——工作管的線性膨脹系數(shù)，一般取1.2×10-4m/（m·k）；△T——安裝時(shí)溫度和最高工作溫度的溫度差（℃）。，PE-RT。表9不同溫度下PE-RTⅡ型管材的彈性模量溫度（℃）204060758085彈性模量910510330220190170CJJ/T81CJJ/T34PE-RT0.4W/(m·K)，0.033W/(m·K)。CJJ28CJJ/T813m5m0.5m）CDCJJ28（3）WS(3)式中：W——Dc——mS——（m0.～4；Cm0.～.2。0.6m，0.2m0.5m。150mm～200mm±20mm-200mm～+20mm。0.2m150mm0.9150mm0.95。63mm63mmBC≤63mm63mmGB/T9124.1CJJ28BC5%。50℃0.5m300mm。400mm；0.5m200mm0.5m0.5m0.9；管頂0.5m以下各部位回填土應(yīng)符合表10的規(guī)定。表10溝槽回填土壓實(shí)度與回填材料填土部位壓實(shí)系數(shù)回填材料管道基礎(chǔ)管底基礎(chǔ)≥0.9中砂、粗砂管道有效支撐角范圍≥0.95管道兩側(cè)≥0.95中砂、粗砂、碎石屑，最大粒徑小于40mm的砂礫或符合要求的原土管頂以上0.5m內(nèi)管道兩側(cè)≥0.9管道上部0.85±0.02管頂以上0.5m～1.0m≥0.9原土7試驗(yàn)與驗(yàn)收7試驗(yàn)與驗(yàn)收管道壓力試驗(yàn)符合CJJ285500m；0.8CJJ28（）1m/s格；5CJJ28CJJ28附錄A（資料性）復(fù)合保溫管道的水力計(jì)算A.1設(shè)計(jì)工況為75℃/50年條件下的S5系列復(fù)合保溫管道的水力計(jì)算，參見表A.1、表A.2、A.3、A.4。表A.1單位長(zhǎng)度沿程水頭損失水力計(jì)算管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn20/16.0dn25/20.4dn32/26.2dn40/32.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s0.230.071120.32340.20————0.250.071290.35390.21————0.270.081470.37450.23————0.290.081650.40510.24————0.310.091850.42570.26————0.320.092050.45630.27————0.340.102260.47690.29————0.360.102490.50760.31————0.400.112970.55910.34270.20——0.430.123530.601080.37320.22——0.470.134060.641240.40370.24——0.500.144640.691420.43420.26——0.540.155300.741620.46480.28——0.580.165950.791820.49540.30——0.610.176660.842040.52600.31210.200.650.187400.892270.55670.33230.220.680.198180.942500.58740.35260.230.720.208990.992750.61810.37280.240.900.2513581.244160.761230.46420.301.080.3019041.495830.921720.56590.361.260.3525311.747751.072290.65790.421.440.4032411.989931.222930.741010.481.620.4540322.2312351.373650.831260.541.800.5048992.4815011.534440.931530.601.980.5558442.7317901.685291.021830.662.160.6068642.9821031.836221.112140.722.340.65——24381.987211.202490.78表A.2單位長(zhǎng)度沿程水頭損失水力計(jì)算管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn50/40.8dn63/51.4dn75/61.4dn90/73.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s1.000.30200.23——————1.260.35270.27——————1.440.40340.31——————1.620.45420.34140.22————1.800.50510.38170.24————1.980.55610.42200.26————2.160.60720.46230.29100.20——2.340.65830.50270.31110.22——2.520.70960.53310.34130.24——2.700.751090.57350.36150.25——2.880.801220.61400.38170.27——3.060.851370.65440.41190.293.240.901520.69490.43210.303.420.951680.72550.46230.32100.223.601.001850.76600.48250.34110.233.781.052020.80660.51280.35110.253.961.102210.84720.53300.37130.264.141.152400.88780.55330.39140.274.321.202590.92840.58350.40150.284.501.252800.95910.60380.42160.294.681.303010.99980.63410.44170.304.861.353221.031050.65440.45180.325.041.403451.071120.67470.47200.335.221.453681.111190.70500.49210.345.401.503921.141270.72540.51220.355.581.554161.181350.75570.52240.365.761.604411.221430.77600.54250.375.941.654671.261520.79640.56270.396.121.704941.301600.82680.57280.406.301.755211.341690.84710.59300.416.481.805491.371780.87750.61310.426.661.855771.411870.89790.62330.436.841.906071.451970.91830.64340.447.021.956361.492060.94870.66360.467.202.006671.532160.96910.67380.477.562.107301.602371.011000.71410.49表A.2單位長(zhǎng)度沿程水頭損失水力計(jì)算（續(xù)）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn50/40.8dn63/51.4dn75/61.4dn90/73.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s7.922.207961.682581.061090.74450.518.282.308641.752801.111180.78490.548.642.409341.833031.151280.81530.569.002.5010081.913271.201380.84570.599.362.6010841.983511.251480.88610.619.722.7011622.063771.301590.91660.6310.082.8012432.144031.351700.94710.6610.442.9013262.214301.391810.98750.6810.803.0014122.294581.441931.01800.7011.163.1014992.374861.492051.04850.7311.523.2015912.445161.542181.08900.7511.583.3016842.525461.592301.11960.7712.243.4017882.595771.642431.151010.8012.603.5018782.676091.682571.181070.8212.963.6019782.756421.732711.211120.8413.323.7020812.826751.782851.251180.8713.683.8021872.907091.832991.281240.8914.043.9022942.987441.883141.311300.9114.404.00——7801.923291.351360.9414.764.10——8161.973441.381430.9615.124.20——8532.023601.421490.9815.484.30——8932.073761.451561.0115.844.40——9202.123921.481631.0316.204.50——9702.164091.521701.0516.564.60——10102.214261.551771.0816.924.70——10512.264431.581841.1017.284.80——10932.314511.621911.1217.644.90——11352.364791.651991.1518.005.00——11782.414971.692061.17表A.3單位長(zhǎng)度沿程水頭損失水力計(jì)算管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn110/90.0dn125/102.2dn160/130.8dn200/163.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s5.941.65100.26——————6.121.70100.27——————6.301.75110.27——————6.481.80120.28——————6.661.85120.29——————6.841.90130.30——————7.021.95140.31——————7.202.00140.31——————7.562.10160.33——————7.922.20170.35——————8.282.30180.36100.28————8.642.40200.38110.29————9.002.50210.39110.31————9.362.60230.41120.32————9.722.70250.42130.33————10.082.80260.44140.34————10.442.90280.46150.35————10.803.00300.47160.37————11.163.10320.49170.38————11.523.20340.50180.39————11.883.30360.52190.40————12.243.40380.53200.41————12.603.50400.55210.43————12.963.60420.57230.44————13.323.70440.58240.45————13.683.80460.60250.46————14.043.90490.61270.48————14.404.00510.63290.49————14.764.10530.64300.50————15.124.20560.66310.51————15.484.30580.68310.52————15.844.40610.69330.54100.33——16.204.50640.71340.55100.33——16.564.60660.72360.56110.34——16.924.70690.74370.57110.35——17.284.80720.75380.59120.36——表A.3單位長(zhǎng)度沿程水頭損失水力計(jì)算（續(xù)）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn110/90.0dn125/102.2dn160/130.8dn200/163.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s17.644.90740.77400.60120.36——18.005.00770.79410.61120.37——18.365.10800.80430.62130.38——18.725.20830.82450.63130.38——19.085.30860.83460.65140.39——19.445.40890.85480.66140.40——19.805.50920.86490.67150.41——20.165.60950.88510.68150.41——20.525.70980.89530.70160.42——20.885.801020.91550.71160.43——21.245.901050.93560.72170.44——21.606.001080.94580.73180.44——21.966.101110.96600.74180.45——22.326.201150.97620.76190.46——22.686.301180.99640.77190.47——23.046.401221.00650.78200.47——23.406.501251.02670.79200.48——23.766.601291.04690.81210.49——24.126.701331.05710.82210.50——24.486.801361.07730.83220.50——24.846.901401.08750.84230.51——25.207.001441.10770.85230.52——25.567.101481.11790.87240.53——25.927.201521.13810.88250.53——26.287.301551.15830.89250.54——26.647.401591.16860.90260.55——27.007.501631.18880.92260.56——27.367.601671.19900.93270.56——27.727.701721.21920.94280.57——28.087.801761.22940.95280.58100.3728.447.901801.24970.96290.58100.3828.808.001841.26990.98300.59100.3829.168.101881.271010.99300.60100.3829.528.201931.291031.00310.61100.3929.888.301971.301061.01320.61110.3930.248.402021.321081.02330.62110.40表A.3 單長(zhǎng)沿頭損水計(jì)（）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn110/90.0dn125/102.2dn160/130.8dn200/163.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s30.608.502061.331111.04330.63110.4030.968.602101.351131.05340.64110.4131.328.702151.371151.06350.64120.4131.688.802201.381181.07360.65120.4232.048.902241.401201.09360.66120.4232.409.002291.411231.10370.67120.4332.769.102341.431251.11380.67130.4333.129.202381.441281.12390.68130.4433.489.302431.461311.13390.69130.4433.849.402481.481331.15400.70130.4534.209.502531.491361.16410.70140.4534.569.602581.511391.17420.71140.4634.929.702631.521411.18430.72140.4635.289.802681.541441.20440.73150.4735.649.902731.551471.21440.73150.4736.0010.002781.571491.22450.74150.4836.9010.252911.611561.25470.76160.4937.8010.503051.651631.28490.78170.5038.7010.753181.691711.31510.80170.5139.6011.003321.731781.34540.81180.5240.5011.253461.771861.37560.83190.5341.4011.503601.811931.40580.85200.5542.3011.753751.842011.43610.87200.5643.2012.003901.882091.46630.89210.5744.1012.254051.922171.49660.91220.5845.0012.504201.962261.53680.93230.5945.9012.754362.002341.56710.94240.6146.8013.004522.042431.59730.96250.6247.7013.254682.082511.62760.98250.6348.6013.504852.122601.65781.00260.6449.5013.755012.162691.68811.02270.6550.4014.005182.202781.71841.04280.6751.3014.255362.242881.74871.05290.6852.2014.505532.282971.77901.07300.6953.1014.755712.323071.80921.09310.7054.0015.005892.363161.83951.11320.71表A.3 單長(zhǎng)沿頭損水計(jì)（）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn110/90.0dn125/102.2dn160/130.8dn200/163.6流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s55.8015.506262.433361.891011.15340.7457.6016.006642.513561.951071.18360.7659.4016.507032.593772.011141.22380.7861.2017.007432.673992.071201.26400.8163.0017.507832.754212.141271.30430.8354.8018.008252.834432.201341.33450.8666.6018.508682.904662.261411.37470.8868.4019.009122.984902.321481.41500.9070.2019.50——5142.381551.44520.9372.0020.00——5382.441621.48550.9573.8020.50——5642.501701.52570.9775.6021.00——5892.561781.55601.0077.4021.50——6162.621861.59621.0279.2022.00——6422.681941.63651.0581.0022.50——6702.752021.67681.0782.8023.00——6972.812101.70711.0984.6023.50——7262.872191.74741.1286.4024.00——7552.932271.78761.1488.2024.50——7842.992361.81791.1690.0025.00——8143.052451.85821.1991.8025.50————2541.89851.2193.6026.00————2641.92891.2497.2027.00————2832.00951.2899.0027.50————2932.04981.31100.8028.00————3022.071021.33102.6028.50————3132.111051.35104.4029.00————3232.151091.38106.2029.50————3342.181121.40108.0030.00————3442.221161.43109.8030.50————3542.261191.45111.6031.00————3652.291231.47113.4031.50————3752.331261.50115.2032.00————3872.371301.52117.0032.50————3992.411341.54118.8033.00————4102.441381.57120.6033.50————4212.481421.59表A.4 單長(zhǎng)沿頭損水計(jì)算管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn250/204.6dn315/257.8dn355/290.6—流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s118.8033.00461.00150.63————120.6033.50471.02150.64————122.4034.00491.03160.65————124.2034.50501.05160.66————126.0035.00511.06170.67————127.8035.50531.08170.68————129.6036.00541.09180.69————131.4036.50561.11180.70————133.2037.00571.12190.71————135.0037.50581.14190.72100.56——136.8038.00601.15200.73100.57——138.6038.50611.17200.74100.58——140.4039.00631.18200.74100.59——142.2039.50641.20210.75100.59——144.0040.00661.21210.76110.60——147.6041.00691.27220.78110.62——151.2042.00721.28240.80120.63——154.8043.00751.30250.82120.65——158.4044.00781.33260.84130.66——162.0045.00821.36270.86130.68——165.6046.00851.39280.88140.69——169.2047.00891.42290.90140.70——172.8048.00921.45300.92150.72——176.4049.00961.48310.94150.74——180.0050.00991.52320.96160.76——183.6051.001031.55340.97160.77——187.2052.001071.58350.99170.78——190.8053.001111.61361.01180.80——194.4054.001151.64371.03190.81——198.0055.001191.67391.05190.83——201.6056.001231.70401.07200.85——205.2057.001271.73411.09200.86——208.8058.001311.76431.11210.87——212.4059.001351.79441.13220.89——216.0060.001391.82451.15230.90——219.6061.001441.85471.17240.92——表A.4 單長(zhǎng)沿頭損水計(jì)（）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn250/204.6dn315/257.8dn355/290.6—流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s223.2062.001481.88481.18240.93——226.8063.001521.91501.20250.95——230.4064.001571.94511.22260.96——234.0065.001611.97531.24260.98——237.8066.001662.00541.26270.99——241.2067.001712.03561.28281.01——244.8068.001762.06571.30291.02——248.4069.001802.09591.32291.04——252.0070.001852.12601.34301.05——255.6071.001902.15621.36311.07——259.2072.001952.18641.38321.08——262.8073.002002.21651.39331.10——266.4074.002052.24671.41331.12——270.0075.002102.27691.43341.14——273.6076.002162.30701.45351.15——277.2077.002212.33721.47361.16——280.8078.002262.36741.49371.17——284.4079.002322.39761.51381.19——288.0080.002372.42771.53391.20——291.6081.002432.45791.55401.22——295.2082.002482.48811.57401.23——298.8083.002542.51831.59411.25——302.4084.002602.55851.60421.26——306.0085.002652.58871.62431.28——309.6086.002712.61881.64441.30——313.2087.002772.64901.66451.30——316.8088.002832.67921.68461.32——320.4089.002892.70941.70471.34——324.0090.002952.73961.72481.36——327.6091.003012.76981.73491.37——331.2092.003072.791001.76501.39——334.8093.003132.821021.78511.40——338.4094.003202.851041.80521.42——342.0095.003262.881061.81531.43——345.6096.003322.911081.83541.44——349.2097.003392.941111.85551.46——A.2A.275A.5。表A.4 單長(zhǎng)沿頭損水計(jì)（）管系列S5SDR11公稱外徑dn/管內(nèi)徑di(mm)dn250/204.6dn315/257.8dn355/290.6—流量RVRVRVRVm3/hL/sPa/mm/sPa/mm/sPa/mm/sPa/mm/s352.8098.003452.971151.87561.47——356.4099.003523.001161.89571.49——360.00100.00——1171.91581.51——367.20102.00——1211.95601.54——374.40104.00——1261.99631.57——381.60106.00——1302.02651.60——388.80108.00——1352.06671.63——396.00110.00——1402.10691.66——403.20112.00——1442.14721.69——410.40114.00——1491.28741.72——417.60116.00——1542.22771.75——424.80118.00——1592.25791.78——432.00120.00——1642.29811.81——439.20122.00——1692.33841.84——446.40124.00——1742.37871.87——453.60126.00——1792.41891.90——460.80128.00——1852.44921.93——468.00130.00——1902.48941.96——475.20132.00——1962.52971.99——482.40134.00——2012.561002.02——489.60136.00——2072.601032.05——496.80138.00——2122.641052.08——504.00140.00——2182.671082.11——511.20142.00——2242.711112.14——518.40144.00——2302.751142.17——525.60146.00——2362.791172.20——532.80148.00——2422.831202.23——540.00150.00——2482.871232.26——547.20152.00——2542.901262.29——554.40154.00——2602.941292.32——561.60156.00——2662.981322.35——568.80158.00——2733.021352.38——表A.5其他供熱溫度水力計(jì)算修正系數(shù)供熱溫度（℃）≥7570605040修正系數(shù)1.01.021.051.081.12A.3A.6表A.6管道局部阻力系數(shù)表管路附件90°彎頭直流三通旁流三通合流三通分流三通直流四通阻力系數(shù)0.3～0.50.51.51.532.0管路附件分流四通乙字彎括彎變徑變大變徑變小法蘭連接件阻力系數(shù)3.00.51.01.00.51.5附錄B（規(guī)范性）管道熱熔對(duì)接焊接方法總則5～45-55B.1表B.1熱熔對(duì)接焊接工藝評(píng)定檢驗(yàn)與試驗(yàn)要求序號(hào)項(xiàng)目試驗(yàn)參數(shù)要求方法1拉伸性能23±2℃韌性，通過(guò)脆性，未通過(guò)GB/T198102靜液壓強(qiáng)度試驗(yàn)密封接頭：a型；調(diào)節(jié)時(shí)間：12h；試驗(yàn)時(shí)間：165h；環(huán)應(yīng)力：4.0MPa試驗(yàn)溫度：95℃焊接處無(wú)破壞，無(wú)滲漏GB/T611110010B.2.1B.2.2（B.2（V）10%（圖B2.圖B2.3B.2.4）；圖B.2.3翻切示圖 圖B.2.4合格心邊圖 圖B.2.5翻背試每隔5m1圖B2.55℃；0.1MPa；±10%；1B.2B.3B.4B.5、表B.6。表B.2熱熔對(duì)接焊焊接工藝參數(shù)參數(shù)單位對(duì)應(yīng)值加熱板溫度℃220-230最小初始卷邊尺寸mm1-4最短吸熱時(shí)間(t2)s10-12en最長(zhǎng)切換時(shí)間(t3)s5-13熱熔對(duì)接壓力(P2)MPa（0.15±0.01）×A1/A2最長(zhǎng)增壓時(shí)間(t4)s5-24在焊機(jī)內(nèi)最短保壓冷卻時(shí)間(t5)min10-602 2注：A1—管材的截面積（mm）；A2—焊機(jī)液壓缸中活塞的總有效面積（mm）；en—管材的公稱壁厚。B.3SDR9/S4公稱直徑dn(mm)管材壁厚en(mm)P2(MPa)壓力=P1凸起高度(mm)壓力≈P拖吸熱時(shí)間t2(s)切換時(shí)間t3(s)增壓時(shí)間t4(s)壓力=P1冷卻時(shí)間t5(min)758.4263/A21.584≤5＜6≥109010.1380/A21.5101≤6＜7≥1111012.3566/A21.5123≤6＜7≥1412514.0732/A22.0140≤6＜8≥1514015.7919/A22.0157≤8＜9≥1716017.91198/A22.0179≤8＜10≥1918020.11514/A22.5201≤8＜10≥2120022.41874/A22.5224≤8＜11≥2322525.22372/A23.0252≤10＜12≥2625027.92920/A23.0279≤10＜14≥2828031.33668/A23.0313≤12＜14≥3131535.24641/A23.5352≤12＜16≥3535539.75898/A23.5397≤12＜18≥3940044.77480/A23.5447≤12＜20≥4445050.39469/A24.0503≤12＜22≥5050055.811674/A24.0558≤12＜24≥55B.4SDR11/S5公稱直徑dn(mm)管材壁厚en(mm)P2(MPa)壓力=P1凸起高度(mm)壓力≈P拖吸熱