Presentation is loading. Please wait.

Presentation is loading. Please wait.

1 Topic I.10. Service Reservoirs: Kinds, Structures and Volume Main Functions of the Service Reservoirs: §To insure the necessary head at the water distribution.

Similar presentations


Presentation on theme: "1 Topic I.10. Service Reservoirs: Kinds, Structures and Volume Main Functions of the Service Reservoirs: §To insure the necessary head at the water distribution."— Presentation transcript:

1 1 Topic I.10. Service Reservoirs: Kinds, Structures and Volume Main Functions of the Service Reservoirs: §To insure the necessary head at the water distribution network (reservoir elevation) §To insure the balance between water inflow and outflow (reservoir useful storage volume) §To keep the fire water volume (if necessary) Kinds of Service Reservoirs I. According to their location and technological function §Crossover type § Endmost type §Intermediate type

2 2 Kinds of Service Reservoirs Crossover Type

3 3 Kinds of Service Reservoirs Endmost Type

4 4 Kinds of Service Reservoirs Intermediate Type

5 5 Kinds of Service Reservoirs II. According to their structure §Sunken type (dig into the earth) §Elevated (Tower) type §Standpipe (Column) type III. According to their protection §Open §Covered

6 6 Kinds and Structures of Service Reservoirs Sunken Type Shapes (schemes) 1 - water inflow pipe 2 - water outflow (feeding) pipe

7 7 Kinds and Structures of Service Reservoirs Pipe Systems at the Sunken Type Service Reservoirs a - inflow pipe system б - outflow (feeding) pipe system b - overflow and drainage pipe system

8 8 Kinds and Structures of Service Reservoirs Sunken Type Structure (Plane)

9 9 Kinds and Structures of Service Reservoirs Sunken Type Structure (Longitudinal Section)

10 10 Kinds and Structures of Service Reservoirs Sunken Type Structure (Cross Section)

11 11 Kinds and Structures of Service Reservoirs Elevated (Tower) Type Standpipe (Column) Type

12 12 Kinds and Structures of Service Reservoirs

13 13 Service Reservoir Volume Sizing V = V r + V f, m 3 V - total reservoir volume, m 3 V r - regulation (useful) reservoir volume, m 3 V f - fire water reserve volume, m 3 V f = 3,6.Q f.T f, m 3 Q f - fire water flowrate, l/s T f - fire duration, h; T f = 2 - 3 h Determination of the Regulation Reservoir Volume I. With known water inflow/outflow regimes V r = 1,2.(V 1 + V 2 ) I. With unknown water inflow/outflow regimes V r = (0,3 - 0,5).Q max,d Q max,d - daily maximal water consumption, m 3


Download ppt "1 Topic I.10. Service Reservoirs: Kinds, Structures and Volume Main Functions of the Service Reservoirs: §To insure the necessary head at the water distribution."

Similar presentations


Ads by Google