SOP for Operation of Steam Boiler EN-28

The objective of this Standard Operating Procedure for Operation of Steam Boiler is to outline the steps and guidelines for the safe and efficient operation of a steam boiler to ensure reliable steam generation for various industrial processes.

SOP for Operation of Steam Boiler

• OBJECTIVE:
  • To lay down the Procedure for Operation of Steam Boiler installed in utility area.
• SCOPE:
  • This SOP is applicable to Operation of Steam Boiler installed in utility area .
• RESPONSIBILITY:
  • Technician/ Operator of Engineering Department shall be responsible for proper execution of operation as per SOP for Operation of Steam Boiler.
  • Engineering – Head shall be responsible for reviewing the SOP and for ensuring proper execution as per SOP for the Operation of Steam Boiler.
• ACCOUNTABILITY:
  • Engineering – Head shall be accountable for proper implementation of the SOP for Operation of Steam Boiler.
• DEFINITIONS:
  • Nil

• PROCEDURE:
• Pre Start up procedure:
  • Pre-checkup to start the boiler.
  • Check the water level in the feed water tank through level gauge.
  • Check the Fuel level in the Diesel tank through level gauge.
  • Check the HSD supply to the burner assembly.
  • Check the pH of the feed water it should be between 8.5 to 9.5.
  • Check the air vent valve of boiler, it should be open. Check Main steam valve it should be closed.
  • Ensure that burner modulation switch is in “off” position.
  • Check the water level in the gauge glass it should not be less than minimum level required.
  • Open the main valves of HSD/ Furnace oil  & feed water.
• Start Up procedure
  • Switch ON the main panel of boiler.
  • Switch the control supply to “on” mode.
  • Switch ON the selected feed Water pump.
  • Switch ON the burner switch.
  • Switch ON the firing switch.
  • After the burner switch ON, within 15 seconds firing will start inside the boiler.
  • When steam starts comes from the air vent valve, close the air vent valve.
  • When steam pressure reaches 5.0 kg/cm² open the main steam valve.
  • Check that all the steam traps are working properly.
  • Check that boiler mounted safety is working properly like mowbray low safety in every shift.
  • Put “on” the modulation switch.
  • Ensure that blow down is effective.
  • After startup of boiler, check the characteristic of the flame for proper functioning
• To Shut down the Boiler.
  • Switch off the burner modulation switch.
  • Turn off main fire/burner switch.
  • When steam pressure reaches 3 kg/Cm² close the main steam valve while slightly opening air vent valve.
  • Open the air vent valve.
  • Feed water pump should be switched “On” to make up the water.
  • When steam pressure comes at 0 kg/cm²– switch off the feed water pump.
  • Switch Off the main Panel of boiler.
  • Leave the air vent valve open.
  • Record the detail of operation after every 02 hrs from start of the boiler as per Format No. SOP/EN/XXXYYY.
  • Record the detail of total running hrs, steam flow meter reading, steam consumption, HSD dip should be taken after every 24 hrs.
• ABBREVIATIONS
  • HSD : High Speed Diesel
• REFERENCES
  • Operational & Maintenance Manual of Steam Boiler.  
• DISTRIBUTION LIST
  • SOP shall be distributed to following departments Quality Assurance, Engineering as per user request.
• ANNEXURES
  • Log Book for the operation of Steam Boiler                                         :          SOP/EN/XXXYYY
    • DAILY LOG-SHEET FOR STEAM BOILER CAPACITY 1000Kg/Hrs.
• DATE:……………….                                                                                          EQUIPMENT ID: ……………………

DAILY LOG-SHEET FOR STEAM BOILER CAPACITY 1000Kg/Hrs

       DATE:……………….                                                         EQUIPMENT ID: ……………………

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