ASME BPVC Section VI - Recommended Rules for Care and Operation of Heating Boilers PDF

Codes and Standards for Power Engineers and Pressure Vessels • Chapter 3 Objective 7 Explain the content and use of ASME BPVC Section VI - Recommended Rules for Care and Operation of Heating Boilers. ASME Section VI: Recommended Rules for the Care and Operation of Heating Boilers This section cove...

Codes and Standards for Power Engineers and Pressure Vessels • Chapter 3 Objective 7 Explain the content and use of ASME BPVC Section VI - Recommended Rules for Care and Operation of Heating Boilers. ASME Section VI: Recommended Rules for the Care and Operation of Heating Boilers This section covers the latest specifications, terminology, and fundamentals for steel and cast iron boilers, limited to the operating range of ASME Section IV, Heating Boilers. It also includes guidelines for associated controls and automatic fuel burning equipment. Various illustrations show typical equipment, components, and how equipment should be installed. This section also includes an extensive glossary of terms associated with heating boilers, controls, and fuel burning equipment. This code contains rules to assist operators of heating boilers in maintaining their plants in a safe condition. These rules apply to the boiler proper and to pipe connections up to and including any valves required by the ASME code. Like ASME VII, ASME VI provides rules for the safe operation of heating boiler auxiliary equipment, such as feedwater pumps and draft fans. ASME VI is divided into nine subsections, plus appendices. Each of these is briefly described below. General This subsection is primarily a glossary of terms. Terms included for: • • • • Boilers Fuels Fuel burning equipment Combustion Types of Boilers This subsection covers the different classification of heating boilers. Plus, it indicates which types of boilers are in each classification. Accessories and Installation These rules are for the installation of accessories for heating boilers. They include: • • • • • • • • Pressure relief valves Low-water fuel cut-offs Condensate return pumps Circulators Expansion tanks Pressure gauges Water columns and water glasses Piping and valve requirements Fuels This subsection discusses the different types of boiler fuels for heating boilers. 4th Class Edition 3 • Part A 3-23 Unit A-3 • Introduction to Power Engineering and its Governance in Canada Fuel Burning Equipment and Fuel Burning Controls This subsection describes the different types of fuel burning equipment found on heating boilers. They also include the controls found on automatic fired boilers. • • • • • • • • Operating controls Limiting controls Safety controls Programming controls Spare parts Power for electrically operated controls Air for pneumatically operated controls Venting of gas controls Boiler Room Facilities These rules are for the boiler room facilities, to maintain the facility in a safe operating condition. Topics include: • • • • • • • • • Inspection of a new boiler Safety Lighting Ventilation Water and drain connections Fire protection Housekeeping Posting of certificates Record keeping and logs Operation, Maintenance, and Repair of Steam Boilers These rules govern the procedures to perform the ordinary duties of operating, maintaining, and repairing steam boilers. These rules cover such things as: • • • • • • • • • 3-24 Starting a new boiler and heating system Starting a boiler after lay-up Condensation Cutting in an additional boiler Operation of boiler auxiliaries Removing a boiler from service Maintenance of boiler and auxiliaries Boiler repairs Testing and inspection of steam heating boilers 4th Class Edition 3 • Part A Codes and Standards for Power Engineers and Pressure Vessels • Chapter 3 Operation, Maintenance, and Repair - Hot Water Boilers and Hot Water Heating Boilers These rules govern the procedures to perform the ordinary duties of operating, maintaining, and repairing hot water boilers. These rules cover such things as: • • • • • • • • • Starting a new boiler and heating system Starting a boiler after lay-up Condensation Cutting in an additional boiler Operation of boiler auxiliaries Removing a boiler from service Maintenance of boiler and auxiliaries Boiler repairs Testing and inspection of hot water boilers Water Treatment These recommended procedures cover the treatment of water in steam and hot water heating boilers. These rules cover: • • • • • • • Boiler water troubles Chemicals used Function of chemicals Treatment alternatives Blowdown Feeders Procedures Appendices The appendices follow the Subsections above. Section VI contains Mandatory and NonMandatory Appendices. Mandatory Appendix I is of more interest to the Power Engineer. It includes: a) Typical log sheets for routinely testing and inspecting the controls of steam and hot water boilers. b) Test procedures for flame safeguards. c) Combustion efficiency test methods. d) Safety limit control test procedures. e) Pressure relief valve test procedures. 4th Class Edition 3 • Part A 3-25