Description

Abstract :

                This paper outlines the various stages of operation involved in the conversion of a manually operated boiler towards a fully automated boiler. Over the years the demand for high quality, greater efficiency and automated machines has increased in this globalised world. The initial phase of the paper focuses on passing the inputs to the boiler at a required temperature, so as to constantly maintain a particular temperature in the boiler. The Air preheater and Economizer helps in this process. And the paper mainly focuses on level, pressure and flow control at the various stages of the boiler plant. Thus the temperature in the boiler is constantly monitored and brought to a constant temperature as required by the power plant. The automation is further enhanced by constant monitoring using PLCC which is connected to the microcontroller. At the automated power plant, the boiler is controlled by Variable Frequency Drive (VFD) to put in action the required processes to be carried out at the boiler. Thus the entire cycle is carried out as a paper and at various stages each phase is detailed out. This paper has proved to be very efficient practically as the need for automation grows day by day. 

Existing System : 

• Micro controller platform based
• Manual  control
• Ethernet control

Proposed System :

• PLCC  platform based
• Can be used in more environment
•  Wireless sensor networks. 

Block Diagram :

     

Block Diagram Explanation :

                     PLCC is an approach to utilize the existing power lines for the transmission of information. In today’s world every house and building has properly installed electricity lines. By using the existing AC power lines as a medium to transfer the information, it becomes easy to connect the houses with a high speed network access point without installing new wirings. In the temperature functional module we developed, we use the LM35 series of temperature sensors. The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Fahrenheit temperatureLevel sensors detect the level of substances that flow, including liquids, slurries, granular materials, and powders. Fluids and fluidized solids flow to become essentially level in their containers (or other physical boundaries) because of gravity whereas most bulk solids pile at an angle of repose to a peak. The substance to be measured can be inside a container or can be in its natural form (e.g., a river or a lake). The level measurement can be either continuous or point values

Hardware :

•   PLCC TX&RX
•   ARM LPC2148
•   Level sensor
•   Pressure sensor
•   Temperature Sensor
•   Gas Sensor
•   Solenoide valve

Software :

•   KEIL
•   Flash Magic
•   Languages:  c

Application :

•   Automobile  Applications
•   Industrial Application
•   Home applications
•   Monitoring device applications
•   Remote control applications