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: ……………………

TIME

STEAM PRESSURE (kg/cm2)

FEED WATER PRESSURE (kg/cm2)

FUEL OIL PRESSURE (kg/cm2)

FEED WATER TEMP.

BLOW DOWN PH (in PPM)

FEED WATER  PH (in PPM)

BLOW DOWN TDS (in PPM)

FEED WATER  TDS (in PPM)

BLOW DOWN HARDNESS (in PPM)

FEED WATER  HARDNESS (in PPM)

FLUE GAS TEMP.

HSD ADD.

OPERATOR NAME

OPERATOR   SIGN

REMARKS

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

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

TIME	STEAM PRESSURE (kg/cm2)	FEED WATER PRESSURE (kg/cm2)	FUEL OIL PRESSURE (kg/cm2)	FEED WATER TEMP.	FLUE GAS TEMP.	HSD ADD.	OPERATOR NAME	OPERATOR   SIGN	REMARKS

 

You may also read about Good Laboratory Practices (GLP)