Operation and engineering
Three features of condensing gas-fired boilers
How heat recovery, flue-gas temperature and system controls affect boiler performance.
Technical insights
Practical topics for boiler selection, operation and maintenance.
English summaries adapted from Hengda Boiler's original technical-knowledge library.
Operation and engineering
Improving the performance of a condensing boiler
The roles of return-water temperature, heat recovery and combustion adjustment.
Operation and engineering
Burner arrangement in gas- and oil-fired boilers
Points to review when selecting a burner and matching it to the furnace.
Operation and engineering
Cleaning a gas-fired boiler
A maintenance checklist for heating surfaces, burners and water-side components.
Operation and engineering
How a low-NOx retrofit can affect boiler operation
Factors to assess when balancing emissions, excess air and fuel consumption.
Operation and engineering
Boiler safety-management essentials
Routine inspections, operating records and protection devices.
Operation and engineering
Pump operation in hot-water boiler systems
Common circulation arrangements and how pump duty relates to system resistance.
Operation and engineering
Troubleshooting burner ignition faults
A structured check of fuel, air, ignition, flame detection and interlocks.
Operation and engineering
Steam-boiler operating procedure
A practical sequence for start-up, load adjustment, blowdown and shutdown.
Operation and engineering
How an industrial steam boiler works
Combustion, heat transfer, steam separation and delivery to the process.
Operation and engineering
Steam-boiler maintenance methods
Daily, monthly and shutdown maintenance priorities.
Operation and engineering
Precautions for steam-boiler operation
Water quality, pressure control, safety valves and operating discipline.
Operation and engineering
Industries that use gas-fired boilers
Common steam and hot-water duties in food, textile, chemical and service industries.
Operation and engineering
Starting a thermal-oil system
Circulation, expansion management, heating rate and temperature monitoring.
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