8/10/2019 Automation of Boiler by Implementing PID Using PLC Edit (1) (1)

1/2

PLC applications are extensively used in

industries to control and facilitate repetitive

processes such as manufacturing cell

management, fly-by-wire control, or nuclear

plant systems.

One of these applications is industrial

automation which includes numerous

automated processes. This again

includes boiler automation which

demands determination of certain

physical parameters (e.g. pressure,

temperature, etc.) & utilizing these

parameters to make the boiler start-stop or

function in any manner we want, but

automatically, without involvement of any

human.

Steam boilers are used to produce

saturated or superheated steam which are

then used in different processes like the

superheated steam is used to run the

turbines which in turn produces electricity.

Historically steam boilers were used in

trains to run the steam engines, steam is

also used in chiller of central cooling

system which helps in maintaining the

chemical soft inside the chiller or otherwise

it will get harder and the chiller will not

work, it is also used in re-boiling operations

and cooking and there are a lot more

functions of steam boilers.

PID controlling

Virtual HMI

FULLY AUTOMATED

MULTIPLE INPUTS AND OUTPUT

ARRANGEMENTS

EXTENDED TEMPERATURE RANGES

IMMUNITY TO ELECTRICAL NOISE

INDUSTRIAL PURPOSE

INDUSTRIAL ENVIRONMENT

Several techniques can be implemente

control the boiler in power plant.

method that has to be used relies on va

objectives like superior quality, increa

efficiency, high profit and other such po

depending upon the purpose of

company that implies it. With the pobjective of catering to these necess

and the needs of the industrial se

significance has been given here

automation.

GROUP MEMBERS

MUHAMMAD MUJTABA 2010-EE-089

ARSALAN KHURSHID 2010-EE-121

ARIF ALI 2010-EE-122

GROUP MEMBERS

EHTISHAM WAHEED 2010-EE-071

MUHAMMADSUFYAN KHAN 2010-EE-123

FARHAN 2010-EE-107

AUTOMATION OF BOILER BY IMPLEMENTING PID

USING PLC, MIMICS & OPC

INTERNAL ADVISOR: Sir. Shoaib Mughal

FEATURE & GOALSBLOCK DIAGRAMOBJECTIVE

BACKGROUND

CONCLUSION

MECHANICAL

8/10/2019 Automation of Boiler by Implementing PID Using PLC Edit (1) (1)

2/2

Liquid Level Sensor

Most of the sensor placed inside the water

cause electrolytic reaction between liquid

and sensor causing loss of effectiveness.

One solution to this problem is to ensure

an AC potential rather than DC potential

between the electrodes.

Capacitors, a NAND gate IC and relay is

used to construct the level meter.

Temperature Sensor

A platinum resistance temperature detector

(RTD) Pt100 is a device with a typical

resistance of 100 at 0C (it is called

Pt100). It changes resistance value as its

temperature changes following a positive

slope (resistance increases when

temperature is increasing).

Pressure Sensor

FST800-211 is used as a pressure sensor.

The pressure sensor can measure 3-5 psi.

Solenoid ValveA solenoid valve is an Electromechanically

operated valve. The valve is controlled by

an electric current through the solenoid.

The solenoid valve controls the water input

in boiler. The solenoid valve can be

controlled through the PC based HMI.

The valve is operated at 220v AC.

PLC (Delta DVP14SS211-R)

ModBus Protocol

Modbus is a serial communicat

protocol originally published by Mod

(now Schneider Electric) in 1979 for

with its programmable logic contro

(PLCs). Simple and robust, it has s

become a de facto standard communica

protocol, and it is now a comm

available means of connecting indus

electronic devices.

PLC HMI

National Instruments LABView 2011 is u

to construct the HMI. Also NIs OPC Seis used to setup communication betw

HMI and PLC. Inputs, outputs, sp

registers and data registers are acces

by using Tags specified in the OPC serv

GROUP MEMBERS

MUHAMMAD MUJTABA 2010-EE-089

ARSALAN KHURSHID 2010-EE-121

ARIF ALI 2010-EE-122

GROUP MEMBERS

EHTISHAM WAHEED 2010-EE-071

MUHAMMADSUFYAN KHAN 2010-EE-123

FARHAN 2010-EE-107

AUTOMATION OF BOILER BY IMPLEMENTING PID

USING PLC, MIMICS & OPC

INTERNAL ADVISOR: Sir. Shoaib Mughal

METHODOLOGYFLOW CHART / COMPONENTS / HMIMETHODOLOGY

Solenoid Valve Temperature

Sensor

Pressure Sensor

SYSTEM MODULE

Liquid Level Sensor

Temperature Gauge

Temperature Monitor

Pressure Gauge

Pressure Sensor

Safety Valve

Solenoid Valve

Heater

PID on PLC

OPC Client & Server

ModBus Protocol

LabView HMI