BOILER OPERATION & MAINTENANCE Manual - Section 1 Boiler Operating, Rigging, and Storage - Operation Instruction

Oct 22, 2026

Boiler Operation & Maintenance manual for a superior boiler project, providing structured operating instructions, start-up procedures, safety precautions, and storage-related guidance. It outlines an initial start-up process including cleaning, filling with soft water, chemical treatment with trisodium phosphate and caustic soda, venting and pressure ramp-up, controlled purging, blowdown and gauge-glass management, and gradual load increases. It also covers normal cold start-up steps and operational checks to reduce corrosion and ensure safe commissioning.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages82

Reading Time3 h 27 min

AccessFree to download

SECTION 1 BOILER OPERATING, RIGGING, AND STORAGE

1. OPERATION INSTRUCTION

2. RIGGING AND OFFLOADING INSTRUCTIONS

BUILT TO OUTPERFORM BOILER OPERATION & MAINTENANCE MANUAL Superior Boiler Project No . XX-XXX (1X) -Model No. XXX-XX-XXX TABLE OF CONTENTS SECTION 1 BOILER OPERATING, RIGGING, AND STORAGE SECTION 2 BOILER PRESTART-UP AND SET-UP DOCUMENTS SECTION 3 MISCELLANEOUS INFORMATION SECTION 4 BOILER VALVE LIST AND IOMs SECTION 5 BOILER INSTRUMENT LIST AND IOMs SECTION 6 BOILER DRAWINGS SB Project No. XX-XXX (X) -Model No. XXX-XX-XXX SECTION 1 BOILER OPERATION, RIGGING, AND STORAGE 1. OPERATION INSTRUCTION A. Recommended Start-up Procedure B. Normal Cold Start-up C. Operation D. Shutting Down E. Inspection and Cleaning F. Boiler Storage 2. RIGGING AND OFFLOADING INSTRUCTIONS 3. LONG TERM BOILER LAY UP STORAGE PROCDURE OPERATION INSTRUCTION OPERATION INSTRUCTION I. RECOMMENDED START-UP PROCEDURE INITIAL START-UP Shop assembled boilers are cleaned internally of all foreign material before they are shipped. If the manhole covers have not been removed, it will not be necessary to make an internal waterside inspection. A water-soluble lubricant was used with the expanding equipment when the tubes were expanded into the drum, so the following procedure is recommended to prepare the boiler for the initial start-up. If the feedwater pump is not available, open the manhole cover in the top drum and fill the boiler with soft water (if obtainable) to 2 or 3 inches below the manhole. If the feedwater system is operating, use the feedwater pump. Thoroughly dissolve in containers of water the chemical combinations of twenty (20) pounds of Trisodium Phosphate, and two and one-half (2.5) pounds of Caustic Soda to each eight thousand (8,000) pounds of water and pour into the boiler through the open manhole or add through the normal chemical feed system. Close the manhole, open the drum vent, and raise the water level to slightly above normal using the feedwater pump. BEFORE LIGHTING THE FIRE, IT IS IMPORTANT TO TAKE THE FOLLOWING PRECAUTIONS: • Make sure that connections are installed so that all blowoff and drain valves can be used effectively and without danger to the construction or operating personnel. • Make sure the vertical safety valve discharge pipe is free from the valve outlet connection and will not touch it when the unit expands upward when heated. • Make sure that the gage glass and other means of indicating the water level are in good working order. • Make sure that the fuel burning equipment, temporary or otherwise, is in such condition that it can be operated in strict accordance with all the rules of safety applying to the particular type of fuel to be used for the boiling out process. BEFORE LIGHTING ANY FIRES, COMPLETELY PURGE THE SETTING OF ALL COMBUSTIBLE GAS BY BLOWING AIR THROUGH THE SETTING WITH THE FORCED DRAFT FAN FOR AT LEAST FIVE MINUTES AT THE RATE OF AT LEAST ONE-FOURTH OF THE REQUIRED MAXIMUM CAPACITY OF THE UNIT. Light the burner and adjust it to the minimum firing rate as described in the burner operating instructions. IF BURNER IGNITION SHOULD BE LOST, IT IS ABSOLUTELY NECESSARY, FOR SAFETY, TO COMPLETELY PURGE THE SETTING FOR FIVE MINUTES BEFORE RELIGHTING. Leave drum vent open until steam blows out at a steady rate, at about 5 psig pressure, to vent air from the boiler and reduce corrosion possibilities. Close the vent and continue firing at the minimum rate until 30 psi pressure is reached, at which point the burner should be shut off for 15 minutes to allow the temperature to equalize. Relight the burner and continue firing at the minimum rate so that about one hour will be required to reach 75% of line pressure or 100 psi, whichever is higher. If the unit is rated at less than 100 psi pressure, bring it up to the operating pressure. Blow down the water column and gage glass for a few seconds to warm it evenly and to make sure all lines are clear. Also open the continuous blow down and lower drum blow down for a couple of seconds

FAQs

What is the recommended procedure before initial boiler start-up?

Clean the boiler internally of foreign material before shipment and, if needed, remove manhole covers for internal waterside inspection. Prepare the boiler using soft water and dissolve required chemicals (trisodium phosphate and caustic soda) through the open manhole or normal chemical feed system.

What precautions are required before lighting the fire?

Ensure blowoff and drain valves are installed safely, keep the vertical safety valve discharge pipe clear and non-contact during expansion, confirm the gage glass and water-level indicators work properly, and verify fuel burning equipment is safe to operate per the specific fuel rules.

How should the boiler be purged and brought up to pressure during initial start-up?

Purge combustible gas by blowing air through the setting with the forced draft fan for at least five minutes. Light the burner at minimum firing rate, purge again for safety if ignition is lost, vent air until steady steam blows out around 5 psig, then raise pressure to 30 psi and continue to reach 75% line pressure or 100 psi, with planned shutdown intervals and periodic blowdowns.

Oct 22, 2026

Upload by Alex Sinclair