DB64/521-2022······1

1 總則······7

2 術(shù)語······8

3 設(shè)計(jì)能耗······10

4 建筑與圍護(hù)結(jié)構(gòu)熱工設(shè)計(jì)······11

4.1 一般規(guī)定······11

4.2 圍護(hù)結(jié)構(gòu)熱工設(shè)計(jì)······13

4.3 圍護(hù)結(jié)構(gòu)熱工性能的權(quán)衡判斷······16

5 供暖通風(fēng)與空氣調(diào)節(jié)······22

5.1 一般規(guī)定······22

5.2 熱源、換熱站及管網(wǎng)······25

5.3 室內(nèi)供暖系統(tǒng)······29

5.4 通風(fēng)和空氣調(diào)節(jié)系統(tǒng)······30

6 給水排水······33

6.1 一般規(guī)定······33

6.2 給水排水系統(tǒng)······33

6.3 生活熱水系統(tǒng)······34

7 電氣······37

7.1 一般規(guī)定······37

7.2 用電設(shè)施······37

7.3 電能計(jì)量······38

附錄A 平均傳熱系數(shù)簡化計(jì)算方法······40

附錄B 典型外窗傳熱系數(shù)參考表······41

附錄C 建筑圍護(hù)結(jié)構(gòu)熱工性能參數(shù)表······44

本標(biāo)準(zhǔn)用詞說明······47

引用標(biāo)準(zhǔn)名錄······48

附：條文說明······49

1 總則······52

2 術(shù)語······55

3 設(shè)計(jì)能耗······56

4 建筑與圍護(hù)結(jié)構(gòu)熱工設(shè)計(jì)······58

4.1 一般規(guī)定······58

4.2 圍護(hù)結(jié)構(gòu)熱工設(shè)計(jì)······64

4.3 圍護(hù)結(jié)構(gòu)熱工性能的權(quán)衡判斷······70

5 供暖通風(fēng)與空氣調(diào)節(jié)······75

5.1 一般規(guī)定······75

5.2 熱源、換熱站及管網(wǎng)······87

5.3 室內(nèi)供暖系統(tǒng)······98

5.4 通風(fēng)和空氣調(diào)節(jié)系統(tǒng)······101

6 給水排水······105

6.1 一般規(guī)定······105

6.2 給水排水系統(tǒng)······106

6.3 生活熱水系統(tǒng)······109

7 電氣······117

7.1 一般規(guī)定······117

7.2 用電設(shè)施······118

7.3 電能計(jì)量······122

附錄A 平均傳熱系數(shù)簡化計(jì)算方法······124