In the context of accelerating the transformation of the global energy structure to green and low-carbon, industrial biomass boilers have become an important equipment for many enterprises to realize sustainable development by virtue of their advantages in renewable energy utilization. However, the stable and efficient operation of biomass boilers cannot be separated from scientific and systematic biomass boiler maintenance. Regular maintenance not only ensures the performance of the equipment, but also reduces the operational risk and improves biomass boiler efficiency, and realizes the economic and environmental benefits.
Regular biomass boiler maintenance removes ash, slag and other factors affecting heat transfer inside the industrial biomass boiler, optimizes combustion efficiency, enables full combustion of fuel, avoids energy wastage due to equipment performance degradation, and significantly reduces energy consumption.
Through daily inspection and regular maintenance, timely detection and repair of potential equipment problems, reduce wear and tear of components, prevent the expansion of failures, effectively extend the service life of the biomass boiler, to protect the long-term stability of the enterprise production.
Biomass boilers in the operation process involves high temperature, high pressure and other dangerous factors. The testing and calibration of safety devices during maintenance work can ensure that the safety system responds quickly in abnormal situations, avoiding serious accidents such as explosions and leaks, and guaranteeing the safety of personnel and equipment.
Efficiently operating industrial biomass boilers convert biomass fuels into heat, reducing pollutant emissions from incomplete combustion. At the same time, maintenance ensures that the equipment is in optimal condition, supporting sustainable biomass energy efforts and helping companies reduce their carbon footprint.
Operators need to inspect the appearance of the industrial biomass boiler every day, focusing on checking whether there is leakage in piping connections, valves and other parts; listening to whether there is any abnormal sound during the operation of the equipment; observing the smoke discharge from the chimney, and investigating the reasons if there is a large amount of black smoke or smoke abnormality as part of routine biomass boiler inspection.
Clean up the ash in the boiler ash bin in time to avoid the accumulation of ash affecting the normal slagging and combustion. At the same time, check the biomass fuel quality indicators such as humidity, impurity content, etc., to ensure that the fuel meets the combustion requirements, to prevent insufficient combustion or equipment blockage due to fuel problems.
Real-time monitoring of temperature, pressure, water level and other key parameters during boiler operation to ensure that they fluctuate within the normal range. Once abnormalities are detected, analyze the causes and take appropriate measures to maintain stable system operation.
Weekly deep cleaning of the combustion chamber to remove residual carbon, slag and other substances in the combustion chamber, to ensure that the combustion chamber space is free and clear, to create good conditions for the full combustion of fuel.
Check the surface of heat exchanger to see if there is any accumulation of dust, corrosion, etc., and clean the surface dirt in time to ensure the heat exchange efficiency of heat exchanger, to avoid energy waste and equipment damage due to poor heat exchange.
Manual test of the safety valve, check whether it is flexible to open and close, whether the pressure setting is accurate, to ensure that the safety valve can work normally when the system pressure is abnormal, to play a safety protection role.
Check the working status of controllers and sensors, and calibrate their accuracy and sensitivity through analog signal input to ensure that the control system can accurately monitor and regulate boiler operating parameters.
Monthly thorough cleaning of heat exchangers, combustion chambers and flue, using professional tools to remove internal stubborn dirt, ash and scale, to restore the performance of the equipment heat transfer and smoke exhaust, to improve the overall operating efficiency.
Carry out detailed inspection of the gear box, motor and other major components, check the gear wear, lubricant level and quality, check the motor operating current, temperature and other parameters, and promptly deal with wear and tear, poor lubrication and other problems to ensure the stable operation of the equipment power system.
Check the seals and gaskets at each connection of the equipment, detect whether there is any leakage phenomenon, and replace the aging and damaged seals and gaskets in time to prevent heat loss and media leakage due to poor sealing.
We test the boiler efficiency by professional instruments, analyze the test data, optimize the combustion parameters and adjust the control system settings in combination with the actual operating conditions, so that the boiler is always in a high-efficiency operating state.
Every year, professional technicians are invited to carry out a full-system overhaul of the biomass boiler, including a comprehensive inspection and deep cleaning of the boiler body, ancillary equipment, piping systems, etc., to detect potential hidden dangers and to ensure that the overall performance of the equipment is good.
According to the operating condition and service life of the equipment, core components such as burners, pumps, fans, etc. are evaluated, components with serious wear and tear or declining performance are replaced in a timely manner, and technological upgrades are carried out when necessary to enhance the reliability and efficiency of the equipment operation.
Re-calibrate the boiler safety devices (such as safety valves, pressure gauges, water level gauges, etc.) and control systems to ensure their accuracy and reliability, and to ensure safe and stable operation of the equipment under complex working conditions.
Comprehensive inspection of the fuel supply system's conveying pipeline, feeder, crusher and other equipments to ensure smooth fuel supply; inspection and maintenance of the ash discharge system's ash discharge machine, conveying pipeline, ash silo, etc., to ensure the normal discharge of ash and avoid blockage and leakage problems.
Focus on checking all aspects of the fuel supply system, including the outlet of the fuel storage silo, conveying pipeline, feeder, etc., to prevent blockage due to lumps of biomass fuel, excessive impurities, etc.; at the same time, checking the wear and tear of the equipment to minimize the loss of fuel in the process of fuel conveying.
Regularly check the integrity of the refractory materials inside the furnace chamber to see if there are cracks, spalling and other damage, and repair or replace the damaged refractory materials in time to prevent the high temperature from damaging the boiler body and ensure the stability of the furnace structure.
Regular cleaning of the flue to remove ash and carbon in the flue to ensure smooth smoke exhaust; testing flue gas emission indicators, such as sulfur dioxide, nitrogen oxides, particulates and other content, to ensure that the emissions comply with environmental standards to avoid environmental risks.
For the biomass boiler using water as heat carrier, the water quality is tested regularly and softening treatment is carried out according to the water quality to prevent calcium, magnesium and other ions in the water from scaling in the equipment, which affects the heat transfer efficiency and the service life of the equipment.
Fuel storage environment control (moisture-proof, mold-proof)
The storage environment of biomass fuel should be kept dry and ventilated to avoid mold and mildew on the fuel. Closed storage warehouse can be used, and equipped with dehumidification equipment to control the humidity of the storage environment to prevent fuel deterioration and affect the combustion performance.
Establish a fuel rotation system, follow the principle of “first in first out” to avoid long-term backlog of fuel. Clean up the residual materials generated during the storage process in a timely manner to prevent them from fermenting and rotting in the storage silo, which will affect the overall fuel quality.
Regularly clean up the ash in the ash silo and choose suitable transportation means and storage sites for temporary storage. Ash can be used as raw materials for construction materials, soil conditioners, etc. for reasonable disposal, to realize the reuse of resources, and at the same time to avoid environmental pollution caused by the random pile of ash.
In the process of fuel storage, transportation and processing, effective dust control measures are taken, such as installing dust removal equipment and sealing the transportation pipeline, to reduce the concentration of fuel dust, prevent dust explosions and other safety accidents, and ensure the safety of the production environment.
If you find a significant increase in unburned biomass fuel in the ash bin, it indicates that the boiler combustion efficiency has decreased, and there may be uneven fuel supply, insufficient combustion or equipment failure, etc., which requires immediate inspection and maintenance.
A large amount of carbon or high-temperature slag phenomenon in the combustion chamber will hinder heat transfer, affecting the stability of combustion, and may even damage the furnace refractory materials, should be cleaned up in a timely manner and investigate the reasons for taking appropriate measures to solve the problem.
Oxygen content of the exhaust smoke is an important indicator to reflect the combustion conditions of the boiler, if it appears abnormal fluctuations, indicating that there are problems in the combustion process, such as insufficient or excess air supply, burner failure, etc., you need to overhaul and adjust as soon as possible.
Normal combustion, biomass boiler exhaust smoke should be light gray, flame color blue or orange-red. If there is black smoke or flame yellow plume, indicating that the fuel combustion is not sufficient, may be fuel quality problems, improper air ratio or equipment failure, need to be dealt with immediately.
When it is found that the boiler heat production decreased significantly, while energy consumption has increased significantly, indicating a decline in boiler operating efficiency, there may be a decline in equipment performance, system leakage or parameter settings are not reasonable and other issues, should be promptly carried out a comprehensive inspection and maintenance.
Before carrying out maintenance work, follow the operating procedures to gradually reduce the boiler load until the boiler is completely shut down. After stopping the boiler, wait for the boiler to cool down naturally. Forced cooling is strictly prohibited to avoid damage to the equipment due to the sudden drop in temperature. At the same time, the operating parameters before stopping the furnace are recorded to provide reference for maintenance work.
Cut off the connection between the boiler and the fuel supply system, electric power system, steam piping, etc., and set up obvious safety warning signs to prevent safety accidents such as fuel leakage, electric shock and steam scald during maintenance. Relieve pressure in systems that may be under pressure to ensure a safe maintenance environment.
According to the equipment maintenance requirements, prepare the required spare parts in advance, such as seals, gaskets, wearing parts, etc., and make a detailed list to ensure that the spare parts are complete. At the same time, prepare all kinds of professional maintenance tools, such as wrenches, screwdrivers, testing instruments, etc., to ensure that the maintenance work is carried out smoothly.
Through regular maintenance, biomass boilers operate efficiently, improve fuel conversion efficiency and reduce energy waste, thus reducing fuel consumption and operating costs and improving economic benefits.
Efficiently operating biomass boilers can reduce pollutant emissions and reduce the carbon footprint of enterprises. This not only meets the requirements of environmental regulations, but also enhances the social image of the enterprise, helps the enterprise to realize green transformation and enhance market competitiveness.
Regular maintenance can identify and solve potential equipment problems in a timely manner, avoiding small failures from becoming major accidents and reducing high maintenance costs due to equipment failures. At the same time, it reduces the risk of production interruptions due to sudden equipment failure, safeguarding the continuity of the company's production and minimizing economic losses.
Industrial biomass boiler as an important energy equipment for enterprise production, its maintenance work is crucial. By establishing a scientific and perfect maintenance system, strictly implementing daily, weekly, monthly and annual maintenance plans, paying attention to key maintenance areas, doing a good job of fuel and ash management, and timely detection and treatment of equipment anomalies, enterprises can not only ensure the safe, efficient and stable operation of biomass boilers, but also achieve significant environmental and economic benefits. A proactive maintenance strategy is a solid guarantee to protect the investment in equipment and promote sustainable development of the enterprise.
