Practical Boiler Control and Instrumentation

DESCRIPTION
This workshop introduces the basic practices of controls systems and safety controls
for industrial steam generating boilers. It focuses on the control and safety requirements applicable to most types of boilers from small gas-fired units to large multi-fuel installations. The workshop will provide training in how control and instrumentation is designed to manage the main variables such as drum water level , furnace draft, combustion fuel and air conditions. Burner management systems are introduced with their principal features including flame safety systems. The essential safety requirements for boilers and burners are identified and the corresponding safety interlocks are explained as practical solutions in accordance with the latest safety standards.

WHO SHOULD ATTEND

Senior boiler plant operators, repairers and installers
Control system engineers
Instrumentation engineers and technicians
Boiler plant commissioning engineers
Operation, maintenance, inspection and repair specialists
Mechanical engineers and technicians
Design engineers
Consulting engineers

SUMMARY OUTLINE

ESSENTIALS OF BOILER PROCESSES

 Objectives of boiler controls
 Overview of boiler types
 Boiler processes in block diagrams to show key inputs and output variables
 Hazards of boiler operations
 The main control functions in boilers and furnaces

REVIEW OF PROCESS CONTROL AND INSTRUMENTATION RELEVANT TO BOILERS

 Principles of sensors and transmitters with examples for boilers
 Closed loop control principles including feedback, feedfoward, ratio and limiting.
 Control system hardware and software tools.
 Safety instrumented controls and the impact of IEC 61511
 Instrumentation diagrams and symbols per ISA and SAMA.
 Distributed control systems and the separation of safety systems

FEEDWATER AND DRUM LEVEL CONTROL

 Performance requirements: Level, quality,stability
 Characteristic responses of drum level
 Level control solutions, 1, 2 and 3 element types
 Level measurement problems and practices
 Drum level safety systems

FURNACE AIR AND DRAFT CONTROLS

 Performance requirements; pressures and temperatures
 Characteristic responses and means of control
 Pressure measurement methods and the pressure profile
 Temperature control and the impact of dew point
 Protection against implosion

COMBUSTION CONTROLS

 The combustion process and its requirements for efficiency and safety
 Coal, oil and gas firing types.
 Stoichiometric air and excess air requirements
 Fuel-air ratio control and its measurements
 Firing rate controls and cross limiters for improving dynamic response
 Methods for measurements of boiler efficiency using analysers
 Application of optimising controllers

BURNER MANAGEMENT SYSTEMS

 Safety and performance requirements of pulverisers, burners and igniters.
 Furnace safety standards and regulations
 Flame monitors and flame failure detection
 Start up protection and sequencing
 Furnace supervisory controls and shutdown systems

STEAM TEMPERATURE CONTROL

 Superheater and attemperator arrangements
 Essential control requirements
 De-superheater controls

STEAM PRESSURE AND BOILER LOAD CONTROLS

 Pressure and flow response characteristics
 Single boiler load control
 Multiple boiler installations and load sharing controls

SUMMARY, QUESTIONS, OPEN FORUM AND CLOSING

COURSE METHOD

Presentation
Discuss
Case Study
Evaluation
Simulation

TIME & VENUE

Yogyakarta,
19-22 March 2012
02-05 July 2012
29 October-01 November 2012
4 days (08 am – 04 pm)

COURSE SPEAKER

Teguh Pudji Purwanto, Ir, MT
Teguh Pudji Purwanto experienced more than 26 years in mechanical industry.

COURSE FEE
IDR 7,000,000.00 per participant non residential

FACILITY

Module / Handout
Certificate
Souvenir
Training Kit

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