What is the importance of boiler maintenance ?
The performance and safety of the boiler depends a lot on boiler maintenance and boiler cleaning Boiler, its surroundings, water pipes, control system, boiler exhaust smoke treatment system… should be kept clean to maintain the correct amount of water to the boiler, ensuring that the boiler is always operate at a high level of performance and safety.
During boiler operation, the operator should follow the procedures in the boiler operation and maintenance manual provided by the boiler manufacturer Besides, there must be a logbook of boiler operation to record all parameters when the boiler is in operation as well as abnormal activities during the use of the boiler such as: boiler troubleshooting, replacement. , boiler repair, boiler maintenance, boiler maintenance.
Instructions for check and maintenance of boilers
Investigating boiler problems showed that the main cause of the boiler’s rapid destruction was due to inadequate check and maintenance when operating the boiler.
In order for the boiler to operate safely and effectively, periodic check and maintenance of the boiler is very important Below are recommendations for boiler check and maintenance on a daily, weekly, monthly, semi-annual and annual basis.
Contents of weekly boiler check and maintenance
Contents of weekly boiler check and maintenance need to be done:
Operate the boiler in low water mode to check that the system automatically shuts off the fuel when the water inside the boiler drops below the specified level.
Check the indicator position of the water level meter, the dark water pipe is at the lowest allowable water level.
Check the operation of the valves on the fuel supply system.
Check the positioning system on the burner. If possible, check for corrosion, slip and hysteresis.
Review the operation of automatic control devices in accordance with the set parameters.
Turn the igniter on and off to check if the burner’s off time meets the requirements.
Check the water shortage alarm system.
Check the operating condition of the motors (pumps) paying attention to unusual noises and vibrations.
Check for fuel, water and steam leaks, exhaust gas.
Check the operation of the pressure relay of the air supply unit.
Check and maintain boiler monthly.
Every month, the boiler operator should have a plan to check the following equipment:
Check the burner fuel diffuser for deformation, burning or cracking
Check ignition device
Inspect the entire inside and outside of the boiler for abnormal deformations
Check scale in tanks of feed water, condensate
Check and maintain the boiler every 6 months
Every 6 months, the boiler operator or the maintenance unit needs to check the boiler for the following contents:
Disconnect the boiler from the system. Check and maintain valves and flange joints
Pay attention to the external condition of the conductors, technological pipes
Check the specifications of all pumps on the system and reset to specifications with an O2, CO and NOx emission analyzer.
Contents of annual boiler check and maintenance
Every year, operators and users need to have a comprehensive check and maintenance plan to ensure safe and continuous operation of the boiler.
Stop operating the boiler, open the cover and manhole to check the abnormal expression on the boiler parts.
Check electrical system safety (insulation resistance, grounding resistance …)
Test refractory materials. Cracks in refractory insulation of 1/8 or less are fine
Check security layer, insulation
Check scale, deformation on the surface of furnace pipes, fire pipes
Check for corrosion of boiler internal components. Non-destructive testing methods – NDT can be added to check for internal defects in metals and welds.
Check and test the locking valves on the fuel supply system
Inspect and test safety valves at set pressures as specified by the manufacturer or in accordance with safety standards
Check the electrical systems on the control panel, make sure they are connected and operating according to specifications.
Check accessories such as feed water recovery unit, deaerator and chemical feed system, if this is part of the boiler system.
Check hot steam pipeline, exhaust chimney
Boiler safety inspection when inspection expires
If the operator’s capacity is not sufficient to perform boiler maintenance work, contact reputable maintenance units to carry out this work.
Reputable boiler and boiler maintenance unit:
In addition to supplying and distributing boilers, boilers and mud presses for project chains, KS – Boiler also provides installation and maintenance services for industrial boilers and boilers.
With a team of highly skilled and responsible technical staff, KS – Boiler has been trusted by many customers to use the company’s services and products. If you need more information about technical products, please contact:
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Hotline: 1900 055 595
Office address: No. 9A, Street 73, Tan Quy Dong Residential Area, Tan Phong Ward, District 7, HCMC
Factory address: E2/52 B1 Hamlet 5, Da Phuoc Commune, Binh Chanh District, HCM