Experiment No:-2
Aim:
To
draw the Rapid sand filter using AutoCAD software.
Problem:
Following
are the particulars of a rapid sand filter.
size
of filler unit - 8.5mx5.7m
Sixe
of inlet chamber - 1.0m x 5.7m
Wall
thickness at top - 370mm
Wall
thickness at bottom - 560mm
Thickness
of foundation - 450mm
Diameter
of main drain or manifold –380mm
Laterals
- 80mm dia with
10mm
strainer @ 150mm c/c
spacing
of laterals - 300mmc/c
Slope
of laterals - 1 in 50
Raw
water inlet - 300mm _
Wash
water drain pipe - 300mm_
Size
of wash water trough - 275mmx375mm
Number
of wash water trough- 3nos
Free
board - 300mm
bottom
of wash water trough is 500mm from the surface of filter media (sand bed) Any
more data required may be assumed suitably.
Draw
the following views to a suitable scale.
1.
Plan of the filter unit showing drainage system .
2.
longitudinal section of the filter unit .
3.
cross section of the filter unit .
Procedure:
1.
switch on the computer
2.Open
Auto CAD 2014
3.
Setting units
(
ii) set the unit as decimal & millimeter
4.
Setting limits
5.
Zoom – All
6.
Using Line command draw Rapid sand filter
7.
Laterals are drawn using line and circle
command
place the laterals in position using
copy
or offset or array command.
Result:
Thus
the Rapid sand filter are drawn using Auto CAD 2014 software.
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