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PRESENTED BY:ANIL KR SHARMA

CHEEMA BOILER LIMITED

PRESENTED TO :

MR.DEEPAK BHANDARI

(TRAINING & PLACEMENT INCHARGE)

COMPANY PROFILE

Cheema Boilers Limited, popularly known as CBL is a trusted name in the field of Indian Boiler Industry

Leader in Manufacturing Process Steam & Power Generation Equipment

Established in the year 1999 Mr. Harjinder Singh Cheema, currently CBL

Managing Director

CLIENTS

CUSTOMER PLACE

Shyam SEL Limited Kolkata

Asian Color Coated Ispat Ltd

Bawal

Haldia Steels Limited Durgapur

SPONGE IRON

CUSTOMERS PLACERiddhi Siddhi Gluco Biols Ltd

Rudarpur

Agro Dutch Inds. Ltd Lalru Fast Foods (Nepal) Pvt Ltd

Kathmandu

Ram Niwas Flour Mills Pvt.Ltd

Delhi

Gurudev Foods Moga

FOOD

DAIRY

CUSTOMER PLACEShree Warna Dudh Kolhapur Karnal Milkfoods Limited Karnal Haryana Milk Foods Limited Pehowa S.N. Milk Products Pvt Limited

Agra

Rana Milk Foods Pvt. Limited

Samrala

Delight Dairy Limited Indore

CUSTOMERS PLACE

India Organics Limited (Trident)

BARNALA

Bhatinda Chemicals Ltd

JALABAD

Kashyap Organics (P) Ltd

Ghaziabad

HPL Chemicals Faridabad

CHEMICALS

CAPACITY

10 TPH - 150 TPHPRESSURE10.54 KG/CM2 TO 87 KG/CM2

QUANTITY MANUFACTURED 125 NOS

PRODUCTS OF CHEEMA BOILERS

Deaerator:to remove the oxygenfrom feed water and feed

the water 130 degree celsius to boiler feed pump.

AFBC BoilersProvision for Hot air for better combustion 

CAPACITY 1 TPH - 5 TPH

PRESSURE 10.54 KG/CM2 TO 17.5 KG/CM2

FUEL WOOD, BRIQUETS, COAL ETC.

QUANTITY MANUFACTURED 20 NOS

INPAC•Easy to install

CAPACITY

1 TPH - 20 TPH

PRESSURE

10.54 KG/CM2 TO 17.5 KG/CM2

FUEL

Oil, Gas 

QUANTITY MANUFACTURED

20 NOS

OIL PAC•Multipass fire tube design

CAPACITY

1 TPH - 12 TPH

PRESSURE

10.54 KG/CM2 TO 25 KG/CM2

FUEL

WOOD, PLYWOOD WASTE, BAGASSE ETC

QUANTITY MANUFACTURED

105 NOS

ENERGY PACCAPACITY

1 TPH - 12 TPH

PRESSURE

10.54 KG/CM2 TO 25 KG/CM2

FUEL

RICE HUSK, COAL, PETCOKE ETC

QUANTITY MANUFACTURED

285 NOS

HYPAC BOILERS

INTRODUCTION OF BOILERS

is a closed vessel made of steel function is to transfer the heat produced by the

combustion of fuel to waterThe steam produced may be supplied.To an external combustion engine for industrial process work in cotton mills For producing hot water

TYPE OF BOILERS

Fire Tube Boilerused for relatively

small steam capacities

competitive for steam rates up to 12,000 kg/hour

Water Tube Boiler

•water flows through the tubes and enters the boiler drum

• selected when the steam demand as well as steam pressure requirements are high

Packaged Boiler

are generally of a shell type with a fire tube design so as to achieve

high heat transfer rates by both radiation and convectionFluidized Bed Combustion (FBC) BoilerAtmospheric Fluidized Bed Combustion

(AFBC) Pressurized Fluidized Bed Combustion

(PFBC) BoilerAtmospheric Circulating Fluidized Bed

Combustion Boilers

 ASSESSMENT OF A BOILER

Performance Evaluation of a Boiler parameters of a boiler, like efficiency and

evaporation ratio reduces Heat balance attempt to balance the total energy entering a

boiler against that leaving the boiler in different

forms

Direct Method Direct Method

energy gain of the working fluid is comparedwith the energy content of the boiler fuel

energy gain of the working fluid is comparedwith the energy content of the boiler fuel

Indirect Method Indirect Method

difference between the losses and the energy Input

difference between the losses and the energy Input

Boiler efficiency-two methods

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Boiler Blow Down

the process of 'blowing down', where a certain volume of water is blown off and is automatically replaced by feed water

Boiler Water Samplinguseful if it is representative of the conditions

inside the boiler Two types of blow downIntermittent blow downContinuous blow down

Stack Temperature Controlshould be as low as possible. Stack temperatures greater than 200°C indicates

potential for recovery of waste heatFeed Water Preheating using Economizers there is a potential to recover heat from these gasesCombustion Air Preheatingan alternative to feed water heating. to improve thermal efficiency by 1 percent,

ENERGY EFFICIENCY OPPORTUNITIES

Incomplete Combustion Incomplete combustion can arise from a shortage

of air or surplus of fuelExcess Air ControlExcess air is required in all practical cases to ensure complete combustionRadiation and Convection Heat Loss

MinimizationThe external surfaces of a shell boiler are hotter

than the surroundings

Reduction of Scaling and Soot Losses In oil and coal-fired boilers, soot buildup on tubes

acts as an insulator against heat transferReduction of Boiler Steam Pressureeffective means of reducing fuel consumptionLower steam pressure gives a lower saturated

steam temperature Variable Speed Control for Fans, Blowers and

Pumps important means of achieving energy savings.

Controlling Boiler LoadingThe maximum efficiency of the boiler does not

occur at full load, but at about two-thirds of the full load

Proper Boiler SchedulingSince, the optimum efficiency of boilers occurs at

65-85 percent of full load Boiler ReplacementThe potential savings from replacing a boiler

depend on the anticipated change in overallefficiency

GENERAL RULES(“Rules of Thumb”)

1) 5 percent reduction in excess air increases boiler efficiency by 1 percent (or 1 percent reduction of residual oxygen in stack gas increases boiler efficiency by 1 percent).

2) 22 °C reduction in flue gas temperature increases the boiler efficiency by 1 percent.

3) 6 °C rise in feed water temperature brought about by condensate recovery.

4) A 3 mm diameter hole in a pipe carrying

7 kg/cm2 steam would waste 32,650 litres of fuel oil per year.

Boiler Do’s and Don’ts

DO’S DON’TS

1. Soot blowing regularly2. Clean blow down gauge glass once a shift3. Check safety valves once a week4. Blow down in each shift, to requirement5. Keep all furnace doors closed

1. Don’t light up torches immediately after a fire-out2. Don’t blow down unnecessarily3. Don’t keep furnace doors open unnecessarily4. Don’t blow safety valves frequently5. Don’t over flow ash hoppers

FANS AND BLOWERS

Introductionprovide air for ventilation and industrial process

requirementsDifference between Fans, Blowers and

CompressorsThese are differentiated by the method used to move the air, and by the system pressure

they must operate against

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Fan Types

selection depends on the volume flow rate pressure, type of material handled, space limitations, and efficiency

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Two general categories

FAN TYPE

Centrifugal flow • airflow changes

direction twice• once when

entering and• second when

leaving

Axial flow

• air enters and leaves the fan •with no change

in direction

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Centrifugal Fan

Backward-inclined fans

Types

Radial fans

Forward-curved fans

TYPES

Axial Flow FanAxial Flow Fan

tube axial vane axial propeller a wheel

inside a cylindrical

housing

have a higher static pressure

with less dependence

run at low speeds ,moderate

temperatures

Propeller

Tube Axial Vane Axial

Energy Saving Opportunities

Minimizing demand on the fan

1. Minimising excess air level in combustion systems to reduce FD fan and ID fan load

2. Minimising air in-leaks in hot flue gas path to reduce ID fan load especially in case of kilns, boiler plants, furnaces,

etc

3. In-leaks / out-leaks in air conditioning systems also have a major impact on energy efficiency and fan power consumption and need to be minimized

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