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GANESHAS LIME AND MINERALS
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Products / Services

Our product range contains a wide range of Boiler Operation, Boiler Controllers and Boiler Auxiliaries

Boiler Controllers

200 / Piece Get Latest Price
  • Min. Order (MOQ) 10 Piece(s)
  • Size ELECTRONIC
The following are three ways to control the output of a commercial boiler: 1. On/off (cycling) control 2. High-fire/low-fire control 3. Modulating control On/off (cycling) control is most common for small boilers up to 1, 000, 000 Btu/h capacity. The oil or gas burner cycles on and off to maintain steam pressure or water temperature. Cycling control causes losses in efficiency because of the cooling (which is necessary for safety) of the fireside surfaces by the natural draft from the stack during the off, pre-purge and post-purge cycles. High-fire/low-fire burners provide fewer off-cycle losses since the burner shuts off only when loads are below the low-fire rate of fuel input. Modulating control is used on most large boilers because it adjusts the output to match the load whenever the load is greater than the low-fire limit, which is usually not less than 15% of the full load capacity. Steam pressure or hot water temperature is measured to determine the volume of gas or oil admitted to the burner. Boiler firing and safety controls are boiler-manufacturer furnished and code approved. A BMCS usually enables a boiler to fire, provides a setpoint, controls pumps and blending valves, and monitors operation and alarms. Combustion control regulates the air supplied to a burner to maintain a high gross efficiency in the combustion process. More sophisticated systems use an oxygen sensor in the stack to control the amount of combustion air supplied. Smoke density detection devices can be used in the stack to limit the reduction of air so stack gases stay within smoke density limits. A continuous reading and/or recording of flue gas conditionsO2 concentration percentage, stack temperatureis usually included in the control package of large boilers.

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Payment Terms : L/C, D/A, D/P, T/T

Packaging Details : AS PER CUSTOMERS REQUIREMENT

Delivery Time : 1 WEEK

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Boiler Operation

  • Min. Order (MOQ) 1 Set(s)
  • MANPOWER 5
Have your service company perform a detailed analysis of your system. The check should include analysis of firing rate, flue draft, airfuel ratio, stack temperature, combustion air setting, flue carbon dioxide and oxygen readings, and control calibrations.Adjust, repair or recalibrate controls and settings as needed. If the proper airwater level is not marked on your sight glass (if present) have it marked.Scale (mineral deposits) inside the boiler reduces the efficiency of the boiler and may lead to stress problems and leaks. Proper chemical treatment of boiler water will reduce scale build-up and control condensate water pH and corrosion potential. When the boiler is shut down, inspect for scale deposits, accumulation of sediment or boiler compounds on the water-side surfaces.Stack flue gas temperatures should be no more than 150 greater than the steam or water temperature. Clean and scrape fire-side tubes to remove soot and scale if the desired temperature split is exceeded. Add stack thermometer if necessary.Check boiler insulation, refractory, brick work, and boiler casing for hot spots and air leaks; repair and seal as necessary.Proper combustion air intake ensures maximum safety as well as efficiency. Interlock combustion air intake with burner operations.If your boilers are large, a daily log of boiler operation may be helpful. Chart boiler pressure, temperature, CO2, O2, steam or condensate flow, and other data from the boiler. Variations from normal can indicate the need for tube and nozzle cleaning, pressure or linkage adjustments, and related airfuel or draft adjustments.Small, frequent boiler blowdowns are more effective than larger, less frequent blowdowns. Schedule blowdown when needed as indicated by regular boiler water tests, rather than by a fixed schedule. Inspect nozzles or cups of oil-fired burners on a regular basis and clean if needed. Inspect oil line strainers and r

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T

Packaging Details : AS PER CUSTOMERS REQUIREMENT

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