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Abstract:
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In a thermal power plant, the boiler is a portion responsible of converting
incoming water into steam which is followed by various apparatus which turn it to super
heated steam. This steam is supplied to steam turbines. The dryer the incoming steam
greater is the efficiency of the turbines and greater is the electricity produced.
The general issue with the incoming water to the boiler is it is filled dissolved
gases, very tiny particles and other stuff that damage the boiler and the adjoining
apparatus. The presence of these cause damage to the boiler and other devices on the
longer run and reduce their lifestyle. Even a single replacement of the boiler coupled with
other apparatus can cause exaggerating expenditure. In general, the apparatus attached
with a boiler are super heaters, steam turbines and condensate pump. The dissolved gases
present in water can react with the walls of these, form oxides, and corrode them. With
time, the walls of these devices develop cracks and hence loose their working capability. This project comes up with a pre set apparatus before water is let to the boiler.
This set up cleans the water of all visible impurities so that they are not deposited at any
point in the whole process. Next, it goes ahead and gets rid of most of the dissolved gases present that have chances of reacting with the boiler or other following apparatus
following boiler. In this way, a sure and reliable set up can be installed to improve the
lifetime of the apparatus used in the power plant. This will end up saving cost at a very
high level.
This project depicts and explains such a set up and uses SCADA to present its
functioning. With the help of SCADA, this system becomes foolproof by installing
artificial intelligence by the use of sensors and alarms. The alarms are set for critical and
normal use values and it is also described in the project. The SCADA would be aimed at
reading critical data like water analysis, system analysis, water flow, water levels etc. |
