schematic for potable water system

8/10/2019 Schematic for Potable Water System

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TYPICAL SUGGESTIVE SCHEMATIC DIAGRAM FOR POTABLE WATER SYSTEM

I II III IV

Flow 1.11 0.22 m3/hr

Pres. 3 3 kg/cm2

TDS 900 420 100 100 mg/liter

I II III IV

Flow 0.89 1.78 m3/hr

Pres. 5.35 5.23 kg/cm2

TDS 5 5 5 5 mg/liter

Calculation

Pres Flow

Potable Water System Operating Pressure 5.2 kg/cm2 Max Operating Pressure Range 52 1.85

Potable Water System Operating Pressure 5 kg/cm2 Nor 50 3.23

Potable Water System Operating Pressure 4 kg/cm2 Min 40 8.09

DM Water Quality TDS 5 mg/liter As per DM Water Quality

Throat Pressure (Point 2) 2.8 kg/cm2 Assumed

Filtered Water Pressure (Point 3) 3 kg/cm2 Assumed

Filtered Water Quality TDS 900 mg/liter Max Due to seasonal variationFiltered Water Quality TDS 100 mg/liter Min

Potable Water Quality TDS 500 mg/liter Max As per WHO recommendation

Potable Water Quality TDS 50 mg/liter Min

CASEUnitDesc.

Desc.CASE

Unit

HYDRO-

PHORE

1

2

3PT

DM WATER STORAGE TANK

POTABLE WATER

PUMP

NaOCl Dosing

Static Mixer

FT


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Case I

Point 1

Flow Rate 0.89 m3/hr

Pipe Size (OD) 60.3 mm

Pipe Thickness 2.77 mm

Pipe Size (ID) 54.8 mm

Velocity Through Pipe 0.11 m/sec

Velocity at Throat


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TDS levels in drinking watershould prefrably be monitored specially when a reve

Source:

www.TDS in drinking water.


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rsed osmossis is used for raw water purification.A minimum TDS of 100mg/liter(100 ppm, parts per millio


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n) should be set . A maximum of 500mg/Liter(500 ppm) is the upper limit.Water with a TDS above 500 p


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m will have a salty taste. Studies by theWorld Health Organizationalso showed that water dranked by ra


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ts, dogs and cats with solids below 100 ppm had bad effects on the animal's stomach.


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Pump FlowHead

Developed

9 36.5

8 40.5

7 43.25

6 45.75

5 47

4 48.75

3 50.8

2 52.1

1 53.25

0 55

1 53.4004

y = -0.0009x

5

+ 0.018x

4

- 0.1281x

3

+ 0.3631x

2

- 1.8077x + 54.956R = 0.999

2

5.20274

y = -0.0009x5+ 0.018x4- 0.1281x

54.956

R = 0.999

0

10

20

30

40

50

60

0 2 4 6


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Head

DevelopedPump Flow

36.5 9

40.5 8

43.25 745.75 6

47 5

48.75 4

50.8 3

52.1 2

53.25 1

40.5 Head

7.93396 Flow

y = -7E-07x5+ 0.0002x

4- 0.0195x

3+ 0.961x

2- 22.832x + 221.27

R = 0.9984

y = 8E-05x3- 0.0282x2+ 1.5632x - 14.435

R = 0.998

0

1

2

3

4

5

6

7

8

9

10

0 10 20 30 40 50


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+ 0.3631x2- 1.8077x +

8 10

Series1

Poly. (Series1)


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60

Series1

Poly. (Series1)


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TYPICAL SUGGESTIVE SCHEMATIC DIAGRAM FOR POTABLE WATER SYSTEM

I II III IV V VI

Flow 1.11 0.22 1.11 0.22 0.14 0.03 m

Pres. 3 3 3 3 3 3 k

TDS 900 420 900 420 900 420 m

I II III IV V VI

Flow 0.89 1.78 0.89 1.78 0.11 0.22 m3/hr

Pres. 5.2 5.2 4 4 5.2 4 kg/cm2

TDS 5 5 5 5 5 5 mg/liter

CalculationPres Flow

Potable Water System Operating Pressure 5.2 kg/cm2 Max Operating Pressure Range 52 1.85

Potable Water System Operating Pressure 5 kg/cm2 Nor 50 3.23

Potable Water System Operating Pressure 4 kg/cm2 Min 40 8.09

DM Water Quality TDS 5 mg/liter As per DM Water Quality

Fluid Densit 1000 kg/m3

Ejector Inlet Elevation 0 m

Ejector Thorat Elevation 0 m

Throat Pressure (Point 2) 2.8 kg/cm2 Assumed

Filtered Water Pressure (Point 3) 3 kg/cm2 Assumed

Filtered Water Quality TDS 900 mg/liter Max Due to seasonal variation

Filtered Water Quality TDS 420 mg/liter Min

Potable Water Quality TDS 500 mg/liter Max As per WHO recommendation

Potable Water Quality TDS 50 mg/liter Min

Desc.

Desc. UnitCASE

CASE

HYDRO-

PHORE

1

2

3 PT

DM WATER STORAGE TANK

POTABLE WATER

PUMP

NaOCl Dosing

Static Mixer


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Throat Diameter Selection:

Case I Case II Case III Case IV

Point 1 Point 1 Point 1 Point 1

Inlet Pressure 5.2 kg/cm2 Inlet Pressure 5.2 kg/cm

2 Inlet Pressure 4 kg/cm2 Inlet Pressure

Throat Pressure 2.8 kg/cm2 Throat Pressure 2.8 kg/cm

2 Throat Pressure 2.8 kg/cm2 Throat Pressure

Flow Rate 0.89 m3/hr Flow Rate 1.78 m

3/hr Flow Rate 0.89 m

3/hr Flow Rate

Pipe Size (OD) 60.3 mm Pipe Size (OD) 60.3 mm Pipe Size (OD) 60.3 mm Pipe Size (OD)

Pipe Thickness 2.77 mm Pipe Thickness 2.77 mm Pipe Thickness 2.77 mm Pipe Thickness

Pipe Size (ID) 54.8 mm Pipe Size (ID) 54.8 mm Pipe Size (ID) 54.8 mm Pipe Size (ID)

Velocity Through Pipe 0.11 m/sec Velocity Through Pipe 0.21 m/sec Velocity Through Pipe 0.11 m/sec Velocity Through Pipe

Velocity at Throat 0.13 m/sec Velocity at Throat 0.22 m/sec Velocity at Throat 0.12 m/sec Velocity at Throat

Thorat Diameter 50.1 mm Thorat Diameter 53.4 mm Thorat Diameter 52.1 mm Thorat Diameter

Ejector Inlet Diameter : 54.8 mm

Thorat Diameter Selected : 15 mm

Flow Rate 0.89 m3/hr Flow Rate 1.78 m

3/hr Flow Rate 0.89 m

3/hr Flow Rate

Velocity at Inlet 0.11 m/sec Velocity at Inlet 0.21 m/sec Velocity at Inlet 0.11 m/sec Velocity at Inlet

Velocity at Throat 1.41 m/sec Velocity at Throat 2.8 m/sec Velocity at Throat 1.41 m/sec Velocity at Throat

Inlet Pressure 5.2 kg/cm2 Inlet Pressure 5.2 kg/cm

2 Inlet Pressure 4 kg/cm2 Inlet Pressure

Pressure at Throat -976 kg/cm2 Pressure at Throat #### kg/cm

2 Pressure at Throat -978 kg/cm2 Pressure at Throat

Thorat Diameter Selection is OK Thorat Diameter Selection is OK Thorat Diameter Selection is OK Thorat Dia

Differential Pressure 979 kg/cm2



Differential PressureCorresponding Flow 1.11 m

3/hr Corresponding Flow 0.22 m


3/hr Corresponding Flow

Considering Design Differential Pressure and Corresponding Flow as

Differential Pressure : 0.24 kg/cm2

Corresponding Flow : 1.11 m3/hr

Acutal Condition for Filtered Water Line

Differential Pressure 979 kg/cm2 Differential Pressure 3904 kg/cm

2 Differential Pressure 981 kg/cm2 Differential Pressure

Corresponding Flow 70.9 m3/hr Corresponding Flow 142 m


3/hr Corresponding Flow

Acutal Flow Condition

DM Water Flow 0.89 m3/hr DM Water Flow 1.78 m

3/hr DM Water Flow 0.89 m

3/hr DM Water Flow

DM Water TDS 5 mg/liter DM Water TDS 5 mg/liter DM Water TDS 5 mg/liter DM Water TDS

Filter Water Flow 70.9 m3/hr Filter Water Flow 142 m

3/hr Filter Water Flow 70.9 m

3/hr Filter Water Flow

TDS 900 mg/liter TDS 420 mg/liter TDS 900 mg/liter TDS

Total Flow Rate 71.8 m3/hr Total Flow Rate 143 m

3/hr Total Flow Rate 71.8 m

3/hr Total Flow Rate

TDS of Mixture 889 mg/liter TDS of Mixture 415 mg/liter TDS of Mixture 889 mg/liter TDS of Mixture

Check Potable Water Quality Potable Water Quality is OK Check Potable Water Quality Potable

schematic for potable water system

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