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Bài giảng: CẤP NƯỚC SINH HOẠT & CÔNG NGHIÊP
Nguyễn Lan Phương 58
Bài làm
1. Xác định tổng chiều dài mạng lưới: ∑L = 1220 (m)
2. Xác định lưu lượng đơn vị:
05,0
1220
970
=
−
=
∑
∑−
=
L
qq
q ttrtt
âv (l/s.m)
3. Xác định qdd:
qdd = l . qdv (l/s)
Đường ống l (m) qdd
1 - 2 125 6.25
2 - 3 200 10.00
3 - 4 160 8.00
4 - 5 150 7.50
5 - 6 240 12.00
1 - 6 125 6.25
1 - 4 220 11.00
4. Xác định lưu lượng nút:
qn = ½ ∑qdd + qtt (l/s)
Nút
Đ. ống
1 2 3 4 5 6
1 – 2 3.125 3.125

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Chuong 222

  • 1. w w w .vncold.vn Bài giảng: CẤP NƯỚC SINH HOẠT & CÔNG NGHIÊP Nguyễn Lan Phương 58 Bài làm 1. Xác định tổng chiều dài mạng lưới: ∑L = 1220 (m) 2. Xác định lưu lượng đơn vị: 05,0 1220 970 = − = ∑ ∑− = L qq q ttrtt âv (l/s.m) 3. Xác định qdd: qdd = l . qdv (l/s) Đường ống l (m) qdd 1 - 2 125 6.25 2 - 3 200 10.00 3 - 4 160 8.00 4 - 5 150 7.50 5 - 6 240 12.00 1 - 6 125 6.25 1 - 4 220 11.00 4. Xác định lưu lượng nút: qn = ½ ∑qdd + qtt (l/s) Nút Đ. ống 1 2 3 4 5 6 1 – 2 3.125 3.125