1 i. water supply networks and facilities topic i.4. river water intakes: kinds and structures water...
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I. Water Supply Networks and Facilities
Topic I.4. River Water Intakes: Kinds and Structures
Water Intake Kinds
General classification:
I. According to the location in respect to the river Bank’s - at the river bank ( at the middle and
low river reaches) Stream’s - at the river stream Mountainous - at the upper river reaches
II. According to the capacity Small - less than 1 m3/s Average - 1 - 6 m3/s Big - more than 6 m3/s
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Topic I.4. River Water Intakes: Kind and Structure
III. According to the lay-out With separate arrangement of the receiving chamber and the pumping
station With combined arrangement of the receiving chamber and the pumping
station
Water Intakes Structures
General requirement: Intake allocation - only at concave bank
and suitable hydrological and geological
conditions
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Bank’s Water Intakes Structures
Separate type
(scheme)1 - receiving well
2 - pumping station
3 - receiving chamber
4 - storage (suction) chamber
5 - suction pipes
6 - mesh screen
7 - inlets
8 - bar rack
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Bank’s Water Intakes Structures
Combined type
(scheme)a - option with foundation on rock
б - option with foundation on rock or on other ground and with horizontal pump
b - option with foundation on rock or on other ground and with vertical pump
1 - receiving chamber
2 - storage (suction) chamber
3 - pumping station
4 - horizontal pump
5 - vertical pump
6 - vertical pump shaft
7 - electric motor
8 - pressurised pipe
9 - suction pipe
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Bank’s Water Intakes Structures
Combined type
(real object lay-out)1 - receiving chamber
2 - storage (suction) chamber
3 - pumping station
4 - service premise
5 - inlets
6 - sluice (for sluice gates)
7 - revolving mash
8 - electric motor
9 - pumps
10 - pressurised pipes
11 - back-washing pipes
12 - sediments withdrawing pipes
13 - sludge pumps
14 - stairs
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Stream’s Water Intakes Structures
Combined type
(scheme)1 - water intake head 3 - receiving well (with two chambers)
2 - gravity feeding pipe 4 - pumping station
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Stream’s Water Intakes Structures
Separate type
(scheme)1 - water intake head
2 - gravity feeding pipe
3 - intake well
4 - pumping station
5 - back-washing pipe
6 - receiving chamber
7 - orifices with racks
8 - separation wall
9 - service office
10 - pumps
11 - distribution chamber
12 - suction pipes
13 - pressurised pipes
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Stream’s Water Intakes Structures
Water intakes heads
(submergible filtering type)a - simplified construction
б, b, г - radial water inlet
1 - filter layer
2 - gravity feeding pipe
3 - concrete case
4 - receiving chamber (space)
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Stream’s Water Intakes Structures
Water intake head
(non-submergible type)1 - gravity feeding gallery
2 - water intake orifices
3 - bar racks
4 - service premise
5 - service platform
6 - ejector
7 - stairs
8 - sluice gates
9 - caisson cutting edge (steel)
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Mountainous Water Intakes Structures
a - plane 1 - dam 4 - drain outlet
б - cross section Б - Б 2 - bar rack 5 - weir
b - cross section A -A 3 - grit chamber
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