GB50015-2019······1

1 總則······13

2 術(shù)語(yǔ)和符號(hào)······14

2.1 術(shù)語(yǔ)······14

2.2 符號(hào)······25

3 給水······32

3.1 一般規(guī)定······32

3.2 用水定額和水壓······32

3.3 水質(zhì)和防水質(zhì)污染······39

3.4 系統(tǒng)選擇······42

3.5 管材、附件和水表······43

3.6 管道布置和敷設(shè)······48

3.7 設(shè)計(jì)流量和管道水力計(jì)算······50

3.8 水箱、貯水池······57

3.9 增壓設(shè)備、泵房······59

3.10 游泳池與水上游樂池······63

3.11 循環(huán)冷卻水及冷卻塔······66

3.12 水景······69

3.13 小區(qū)室外給水······71

4 生活排水······75

4.1 一般規(guī)定······75

4.2 系統(tǒng)選擇······75

4.3 衛(wèi)生器具、地漏及存水彎······76

4.4 管道布置和敷設(shè)······79

4.5 排水管道水力計(jì)算······83

4.6 管材、配件······88

4.7 通氣管······90

4.8 污水泵和集水池······94

4.9 小型污水處理······96

4.10 小區(qū)生活排水······97

5 雨水······104

5.1 一般規(guī)定······104

5.2 建筑雨水······104

5.3 小區(qū)雨水······111

6 熱水及飲水供應(yīng)······116

6.1 一般規(guī)定······116

6.2 用水定額、水溫和水質(zhì)······116

6.3 熱水供應(yīng)系統(tǒng)選擇······122

6.4 耗熱量、熱水量和加熱設(shè)備供熱量的計(jì)算······127

6.5 水的加熱和貯存······130

6.6 太陽(yáng)能、熱泵熱水供應(yīng)系統(tǒng)······137

6.7 管網(wǎng)計(jì)算······147

6.8 管材、附件和管道敷設(shè)······150

6.9 飲水供應(yīng)······152

附錄A 回流污染的危害程度及防回流設(shè)施選擇······156

附錄B 給水管段衛(wèi)生器具給水當(dāng)量同時(shí)出流概率計(jì)算式αc系數(shù)取值······158

附錄C 給水管段設(shè)計(jì)秒流量計(jì)算······159

附錄D 閥門和螺紋管件的摩阻損失的折算補(bǔ)償長(zhǎng)度······172

附錄E 小區(qū)地下管線(構(gòu)筑物)間最小凈距······173

附錄F 屋面溢流設(shè)施泄流量計(jì)算······174

附錄G 重力流系統(tǒng)立管的最大設(shè)計(jì)排水流量······176

附錄H 我國(guó)的太陽(yáng)能資源分區(qū)及其特征······177

附錄J 飲用水嘴同時(shí)使用數(shù)量計(jì)算······179

本標(biāo)準(zhǔn)用詞說明······181

引用標(biāo)準(zhǔn)名錄······182

附:條文說明······185

1 總則······188

3 給水······189

3.1 一般規(guī)定······189

3.2 用水定額和水壓······190

3.3 水質(zhì)和防水質(zhì)污染······193

3.4 系統(tǒng)選擇······199

3.5 管材、附件和水表······200

3.6 管道布置和敷設(shè)······204

3.7 設(shè)計(jì)流量和管道水力計(jì)算······207

3.8 水箱、貯水池······210

3.9 增壓設(shè)備、泵房······213

3.10 游泳池與水上游樂池······217

3.11 循環(huán)冷卻水及冷卻塔······222

3.12 水景······226

3.13 小區(qū)室外給水······227

4 生活排水······230

4.1 一般規(guī)定······230

4.2 系統(tǒng)選擇······230

4.3 衛(wèi)生器具、地漏及存水彎······231

4.4 管道布置和敷設(shè)······232

4.5 排水管道水力計(jì)算······237

4.6 管材、配件······238

4.7 通氣管······238

4.8 污水泵和集水池······240

4.9 小型污水處理······244

4.10 小區(qū)生活排水······245

5 雨水······250

5.1 一般規(guī)定······250

5.2 建筑雨水······250

5.3 小區(qū)雨水······258

6 熱水及飲水供應(yīng)······260

6.2 用水定額、水溫和水質(zhì)······260

6.3 熱水供應(yīng)系統(tǒng)選擇······261

6.4 耗熱量、熱水量和加熱設(shè)備供熱量的計(jì)算······268

6.5 水的加熱和貯存······270

6.6 太陽(yáng)能、熱泵熱水供應(yīng)系統(tǒng)······279

6.7 管網(wǎng)計(jì)算······284

6.8 管材、附件和管道敷設(shè)······285

6.9 飲水供應(yīng)······289