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Презентация на тему Multivariable process control system

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Multivariable Process Control System (Flow, Level, Temperature, Pressure) Volume 1/2 Made by: Sharafatdin Yessirkepov Checked by: Karl Marx
Before the lecture Multivariable Process Control System (Flow, Level, Temperature, Pressure) Volume 1/2 Plan Part 1. Introduction to FLTP Part 2. Main Units of Introduction How do we control the tank in the field without Introduction It is difficult to control the liquid vessel manually because it Introduction (Cont’d) Therefore, the Process Control System is helpful by controlling the Introduction Cont’d Multivariable Process Control System can control the flow rate, level, External Process Unit FLTP-U/EVBasic panel 1) Main Units of the trainer FLTP 1.1 Power Supply Unit (FLTP-A/EV) Consists of 5 windows1st window has 4 1.2 Module for temperature control mod. FLTP-B/EVHas Conditioner on the left sideHas QuestionWhich kind of thermocouples do you know? http://digital.ni.com/public.nsf/allkb/29FC44A9C662D80186256B02008387CF For FLTP ConditionerThermocouple JSTT – Smart Temp. TransmitterNTC – Negative Temperature 1.2.1 Module for temperature control mod. FLTP-B/EVHas Conditioner on the left side Question.What is amplifier? 1.2.2 Amplifier (Brief explanation) Amplifier – modulates the output stronger than input 1.3. Flow Rate- Level Control (FLTP-C/EV)Has 2 conditioners, 1 amplifier and 2 1.3.1 Flow Rate ControlMeasures the flow rate with a paddle wheelUnit : 1.3.2 Level ControlShows the level of the tankMeasured with piezometric sensor 1.4 Pressure Unit (FLTP-D/EV)Has signal conditioner and amplifierPressure is measured in bars.Has 1.5. External Unit (FLTP-U/EV)Has plexiglass panelHas 3 tanks: 1) 25litres stainless steel 1.5. External Unit (FLTP-U/EV)Piezometric Level Sensor 1.5. External Unit (FLTP-U/EV)Thermostat (0-50C) 1.5. External Unit (FLTP-U/EV)On/ Off Exhaust Solenoid Valve 1.5. External Unit (FLTP-U/EV)Pressure Switch 1.5. External Unit (FLTP-U/EV)PVC Proportional Valve 1.5. External Unit (FLTP-U/EV)Paddle Wheel Flow meter Paddle wheel flow measurementHas a magnet in one of the paddlesHall effect 1.5. External Unit (FLTP-U/EV)PVD Proportional Valve 1.5. External Unit (FLTP-U/EV)Temperature Sensors 1.5. External Unit (FLTP-U/EV)PVC Proportional ValvePVD Proportional ValvePressure SwitchThermostat (0-50C)Piezometric Level SensorOn/ 9____________________8_____________________11________________6)_________________2)______________________5___________________________10______________________1)____________3)_________________4)____________7_____________________12________________ ValvesPositive crankcase ventilation (PVC) is used to limit the pressure or flow 1.5 Work Principle of External Unit. Liquid is kept in the metal 2. Control UnitsPLC TrainerIndustrial PIDControl Card 2.1 PLC Trainer (PLC-5A/EV) Учебная панель Has 16 digital inputs14 digital outputs4 2.2 PID ControllerHas inputsOutputs Control Card (MFI-U/EV)Has 8Digital Inputs;8Digital Outputs16 Analog inputs2 Analog Outputs 3 Control TechniquesPID ControlAmplifierHeaterTransducerSignal ConditionerSet-Point Question. Is it open loop or closed loop control?PID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointFeedback Answer: It is closed loop control because of PID Control and feedbackPID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointFeedback Open Loop ControlSignal Conditioner QuestionWhat are the transducers? 3 TransducersConverter from physical variable to the electrical variable. Example: Pressure QuestionWhat is the Conditioner? ConditionerConverter from undesirable electrical variable into suitable electrical variableAlways comes with transducer Signal ConditionerElectrical variableElectrical variable Temperature ControlPID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointPV Pressure ControlPID ControlAmplifierPumpTransducerSignal ConditionerSet-PointPV SummaryProcess Control System requires the control techniques, such as Amplifier, Conditioner, transducer
Слайды презентации

Слайд 2 Multivariable Process Control System (Flow, Level, Temperature, Pressure)

Multivariable Process Control System (Flow, Level, Temperature, Pressure) Volume 1/2

Volume 1/2

Made by: Sharafatdin Yessirkepov
Checked by: Karl Marx

Слайд 3 Plan Part 1. Introduction to FLTP Part 2. Main Units

Plan Part 1. Introduction to FLTP Part 2. Main Units of

of the trainer Part 3. Control Units Part 4. Control Techniques Part

5. Conclusion Part 6 Self-Test (No cheating) Part 7. Lab work

Слайд 4 Introduction How do we control the tank in the

Introduction How do we control the tank in the field without

field without the manual control? Do we often open

the tank and measure the flow rates, Pressures and fluid level by hand in winter ? We are tired by doing so. Let’s overcome the problem.

Слайд 5 Introduction It is difficult to control the liquid vessel

Introduction It is difficult to control the liquid vessel manually because

manually because it is time consuming and requires too

much physical work

Слайд 6 Introduction (Cont’d) Therefore, the Process Control System is helpful

Introduction (Cont’d) Therefore, the Process Control System is helpful by controlling

by controlling the unit parameters even at a high

distance automatically.

Plant

Room







2 kilometers

Winter Outside Temperature: -35C

Слайд 7 Introduction Cont’d Multivariable Process Control System can control the

Introduction Cont’d Multivariable Process Control System can control the flow rate,

flow rate, level, Pressure and Temperature of the fluid

inside the vessel

Слайд 8 External Process Unit FLTP-U/EV
Basic panel

External Process Unit FLTP-U/EVBasic panel

Слайд 9 1) Main Units of the trainer

1) Main Units of the trainer FLTP

FLTP

1)Power supply unit mod. FLTP-A/EV 2) Module for temperature control mod. FLTP-B/EV 3) Module for level and flow-rate control mod. FLTP-C/EV 4) Module for pressure control mod. FLTP-D/EV 5) Process units mod. FLTP-U/EV

Слайд 10 1.1 Power Supply Unit (FLTP-A/EV) Consists of 5 windows
1st

1.1 Power Supply Unit (FLTP-A/EV) Consists of 5 windows1st window has

window has 4 potentiometers of the process variables

(Level, Flow rate, Temperature and Pressure)

2nd 3rd and 4th windows are the switches of the other units (Temperature, Level and Pressure).
5th window works with the pump

Слайд 11 1.2 Module for temperature control mod. FLTP-B/EV
Has Conditioner

1.2 Module for temperature control mod. FLTP-B/EVHas Conditioner on the left

on the left side
Has Amplifier on the right side

Temperature unit requires these voltages:
-12V; 0V; +12V and 48V

Слайд 12 Question
Which kind of thermocouples do you know?

QuestionWhich kind of thermocouples do you know?

Слайд 13 http://digital.ni.com/public.nsf/allkb/29FC44A9C662D80186256B02008387CF
For FLTP Conditioner

Thermocouple J
STT – Smart Temp.

http://digital.ni.com/public.nsf/allkb/29FC44A9C662D80186256B02008387CF For FLTP ConditionerThermocouple JSTT – Smart Temp. TransmitterNTC – Negative

Transmitter
NTC – Negative Temperature Coefficient Thermistor
Pt100 with more accuracy




1.2.1

Types of thermal sensors

In general

Слайд 14 1.2.1 Module for temperature control mod. FLTP-B/EV
Has Conditioner

1.2.1 Module for temperature control mod. FLTP-B/EVHas Conditioner on the left

on the left side and deals with thermocouples.

Conditioner has 5 inputs and 1 output

Слайд 15 Question.
What is amplifier?

Question.What is amplifier?

Слайд 16 1.2.2 Amplifier (Brief explanation)
Amplifier – modulates the

1.2.2 Amplifier (Brief explanation) Amplifier – modulates the output stronger than

output stronger than input signal
For example:
Input voltage is 3V

and output is 5V after amplification
Has 1 input and 1 output signal to the heating resistor

Слайд 17 1.3. Flow Rate- Level Control (FLTP-C/EV)
Has 2 conditioners,

1.3. Flow Rate- Level Control (FLTP-C/EV)Has 2 conditioners, 1 amplifier and

1 amplifier and 2 controllers
Flow rates deal with the

top window
Level measurements are at the bottom
Has the voltage requirements:
-12V; 0V; +12V and 48V





Retrieved from: MULTIVARIABLE PROCESS CONTROL SYSTEM (Flow, Level, Temperature, Pressure) mod. FLTP/EV, TEACHER/STUDENT manual, Electronica Veneta

Слайд 18 1.3.1 Flow Rate Control
Measures the flow rate with

1.3.1 Flow Rate ControlMeasures the flow rate with a paddle wheelUnit

a paddle wheel
Unit : l/min
Has 2 inputs and 1

Output
Has a switch

Слайд 19 1.3.2 Level Control
Shows the level of the tank
Measured

1.3.2 Level ControlShows the level of the tankMeasured with piezometric sensor

with piezometric sensor

Слайд 20 1.4 Pressure Unit (FLTP-D/EV)
Has signal conditioner and amplifier
Pressure

1.4 Pressure Unit (FLTP-D/EV)Has signal conditioner and amplifierPressure is measured in

is measured in bars.
Has 1 input and 1 output

controlled with the PVD valve
Managed with the pump

Слайд 21 1.5. External Unit (FLTP-U/EV)
Has plexiglass panel
Has 3 tanks:

1.5. External Unit (FLTP-U/EV)Has plexiglass panelHas 3 tanks: 1) 25litres stainless

1) 25litres stainless steel at the bottom;
2)

5liters vertical plexiglass;
3) 1litre vertical steel tank
Has a recirculation pump
Manual Control Valves
Water Heater with Resistor
2 Proportional Valves
2Pressure gauges
On/ Off Solenoid Valve
Process variable Sensors
1 glass mercury thermometer


Слайд 22 1.5. External Unit (FLTP-U/EV)
Piezometric Level Sensor

1.5. External Unit (FLTP-U/EV)Piezometric Level Sensor

Слайд 23 1.5. External Unit (FLTP-U/EV)
Thermostat (0-50C)

1.5. External Unit (FLTP-U/EV)Thermostat (0-50C)

Слайд 24 1.5. External Unit (FLTP-U/EV)
On/ Off Exhaust Solenoid Valve

1.5. External Unit (FLTP-U/EV)On/ Off Exhaust Solenoid Valve

Слайд 25 1.5. External Unit (FLTP-U/EV)
Pressure Switch

1.5. External Unit (FLTP-U/EV)Pressure Switch

Слайд 26 1.5. External Unit (FLTP-U/EV)
PVC Proportional Valve

1.5. External Unit (FLTP-U/EV)PVC Proportional Valve

Слайд 27 1.5. External Unit (FLTP-U/EV)
Paddle Wheel Flow meter

1.5. External Unit (FLTP-U/EV)Paddle Wheel Flow meter

Слайд 28 Paddle wheel flow measurement
Has a magnet in one

Paddle wheel flow measurementHas a magnet in one of the paddlesHall

of the paddles
Hall effect is represented by magnetic vibration

as the wheel rotates quickly
Q = Number of pulse(litre)/ time(sec)

Слайд 29 1.5. External Unit (FLTP-U/EV)
PVD Proportional Valve

1.5. External Unit (FLTP-U/EV)PVD Proportional Valve

Слайд 30 1.5. External Unit (FLTP-U/EV)
Temperature Sensors

1.5. External Unit (FLTP-U/EV)Temperature Sensors

Слайд 31 1.5. External Unit (FLTP-U/EV)
PVC Proportional Valve
PVD Proportional Valve
Pressure

1.5. External Unit (FLTP-U/EV)PVC Proportional ValvePVD Proportional ValvePressure SwitchThermostat (0-50C)Piezometric Level

Switch
Thermostat (0-50C)
Piezometric Level Sensor
On/ Off Exhaust Solenoid Valve
Temperature Sensors
Paddle

Wheel Flow meter

1)____________

Слайд 32 9____________________
8_____________________
11________________
6)_________________
2)______________________
5___________________________
10______________________
1)____________
3)_________________
4)____________
7_____________________
12________________

9____________________8_____________________11________________6)_________________2)______________________5___________________________10______________________1)____________3)_________________4)____________7_____________________12________________

Слайд 33 Valves
Positive crankcase ventilation (PVC) is used to limit

ValvesPositive crankcase ventilation (PVC) is used to limit the pressure or

the pressure or flow rate
PVD Power valve Double acting
Solenoid

Valve





Слайд 34 1.5 Work Principle of External Unit.
Liquid is

1.5 Work Principle of External Unit. Liquid is kept in the

kept in the metal vessel
pump injects the liquid

from vessel into the plexiglass tank through lines.
Liquid Pressures, flow rates and level are measured when the pump works
Heater warms up the liquid
Temperatures are measured with thermal snesors on the metal vessel
Valves help control the pressures and flow rates

Слайд 35 2. Control Units
PLC Trainer
Industrial PID
Control Card

2. Control UnitsPLC TrainerIndustrial PIDControl Card

Слайд 36 2.1 PLC Trainer (PLC-5A/EV) Учебная панель
Has 16 digital inputs
14

2.1 PLC Trainer (PLC-5A/EV) Учебная панель Has 16 digital inputs14 digital

digital outputs
4 Analog Inputs
1 Analog Output
Connects to the touch

screen

Слайд 37 2.2 PID Controller
Has inputs
Outputs

2.2 PID ControllerHas inputsOutputs

Слайд 38 Control Card (MFI-U/EV)
Has 8Digital Inputs;
8Digital Outputs
16 Analog inputs
2

Control Card (MFI-U/EV)Has 8Digital Inputs;8Digital Outputs16 Analog inputs2 Analog Outputs

Analog Outputs

Слайд 39 3 Control Techniques

PID Control
Amplifier
Heater
Transducer
Signal Conditioner
Set-Point

3 Control TechniquesPID ControlAmplifierHeaterTransducerSignal ConditionerSet-Point

Слайд 40 Question. Is it open loop or closed loop

Question. Is it open loop or closed loop control?PID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointFeedback

control?

PID Control
Amplifier
Heater
Transducer
Signal Conditioner
Set-Point
Feedback

Слайд 41 Answer: It is closed loop control because of PID

Answer: It is closed loop control because of PID Control and feedbackPID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointFeedback

Control and feedback

PID Control
Amplifier
Heater
Transducer
Signal Conditioner
Set-Point
Feedback

Слайд 42 Open Loop Control
Signal Conditioner

Open Loop ControlSignal Conditioner

Слайд 43 Question
What are the transducers?

QuestionWhat are the transducers?

Слайд 44 3 Transducers
Converter from physical variable to the electrical

3 TransducersConverter from physical variable to the electrical variable. Example: Pressure

variable.
Example: Pressure at 4 bars is converted

to voltage at
7 Volts
The transducer shows mostly the linear function
Cannot be formed without the conditioner

transducer

Physical variable

Electrical variable

Слайд 45 Question
What is the Conditioner?

QuestionWhat is the Conditioner?

Слайд 46 Conditioner
Converter from undesirable electrical variable into suitable electrical

ConditionerConverter from undesirable electrical variable into suitable electrical variableAlways comes with transducer Signal ConditionerElectrical variableElectrical variable

variable
Always comes with transducer

Signal Conditioner
Electrical variable
Electrical variable

Слайд 47 Temperature Control

PID Control
Amplifier
Heater
Transducer
Signal Conditioner
Set-Point
PV

Temperature ControlPID ControlAmplifierHeaterTransducerSignal ConditionerSet-PointPV

Слайд 48 Pressure Control

PID Control
Amplifier
Pump
Transducer
Signal Conditioner
Set-Point
PV

Pressure ControlPID ControlAmplifierPumpTransducerSignal ConditionerSet-PointPV
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