Steam Jet - IBR Approved

Technical Specifications

THREE PASS OIL/GAS FIRED FULLY AUTOMATIC SMOKE TUBE STEAM BOILER

TECHNICAL SPECIFICATION:

i - Type - Horizontal, 3 pass, Fully Wet Back , IBR approved Smoke Tube boiler.

ii - Capacity - 1000 Kg/hr to 60000 Kg/hr (F & A 100° C)

iii - Working Pressure - Std. 10.5 Kg/cm2 (g), 14.06 Kg/cm2 (g), 17.05 Kg/cm2 (g) and above with water tube design also available.

iv - Fuel - Gas / Diesel/Heavy Oil/ Dual Fuel

v - Thermal Efficiency - 88% + 1% based on N.C.V. of fuels 92% + 1% based on N.C.V. of fuels with Heat Recovery Unit

vi - Heat Recovery Unit - Economiser/Air Preheater

vii - Burner - Fully Automatic, Pressure Jet with High-Low/Stepless Modulation

 

UNITS MANUFACTURED AS PER LATEST INDIAN BOILER REGULATIONS

CONSTRUCTION

i - Three pass horizontal smoke tube economic shell type Boiler

ii - Designed and Fabricated in accordance with Indian Boiler  Regulations (IBR)

iii - Stage inspected, hydraulically shop tested and certified by Director Steam Boilers .

iv - Wet back construction having very good heat absorption in the radiant heating zone.

v - Furnace is provided with a large radiant heating surface maintaining safe furnace wall temperatures much below its safer limits

vi - Furnace volumes liberally selected ensuring complete combustion and highest combustion efficiency

vii - Steam and Water space is quite large providing ability to respond to fluctuating loads effectively

viii - “LAFIL” has its own superior design standards which are governed by Internationally laid down sound design parameters

ix - Design range up to 60000 Kg/hr (F & A 100° C) 

OPERATION

i - The Burner is FULLY AUTOMATIC PRESSURE JET TYPE having either HIGH-LOW, ON-OFF modulation or continuous STEPLESS modulation

ii - Burner is SELF IGNITING and maintains CLEAN and SMOKELESS COMBUSTION all throughout the operation

iii - The outlet flue gas temperatures are optimum such that the thermal efficiency is highest and problems due to H2SO3 condensation are not observed (due to high Sulphur content in the furnace Oil)

iv - The Burner function is suitably integrated with the control panel such that in case of any abnormal operating condition the Burner will cut off safely and will go to safety lockout condition by giving Audio Visual Annunciation and Alarm.

SAFETY FEATURES

i - Low Water level cut out

ii - Flame failure lock out

iii - Steam safety valve

iv - Back fire pressure relief

v - Fusible plug

OUR DESIGN AND PERFORMANCE ADVANTAGES

i - High thermal efficiency of 88% on NCV of fuel Oil over entire operating range

ii - High Steam space in the Boiler and large Steam release area on Water surface gives better quality of dry Steam

iii - Priming and foaming tendencies are totally eliminated ensuring long life of Steam pipe line with no deposits inside

iv - The plant will have highest integrated Steam/circuit efficiency

v - High furnace volume ensures long furnace residence time and complete combustion of fuel at low excess Air

vi - Better Combustion efficiency with soot free combustion and guarantee of highest CO2%

vii - High furnace volume and large radiation surface giving very high heat absorption in furnace and also simultaneously keeping moderate heat flux and heat release rates (Heat flux + Heat release per m2of furnace area and Heat release rate + Heat release per m3 of furnace volume)

Moderate heat release rate/heat flux ensures low thermal stresses and safe furnace metal temperature

OPTIONAL

To achieve the highest fuel saving, the provision is made to incorporate the AIR PREHEATER. This preheats the Air before being fed to combustion. An additional 5% of thermal efficiency can be achieved by this feature.