1. Strengthening management and paying attention to the assessment of the technical level of boiler room managers and boiler operators plays an important role in boiler operation efficiency. Through intensive training of boiler room managers and operators, the professional knowledge of boiler operators and managers can be improved. Implement reasonable assessment rewards and punishments, carry out energy-saving competitions between operation teams, and improve the energy-saving awareness and sense of responsibility of boiler operators. Be familiar with the functions of systems and equipment, and regularly maintain equipment. Strengthen water quality management and clean scale regularly; reduce the amount of sewage discharged on the basis of water quality meeting the requirements of GB/T1576 "Industrial Boiler Water Quality" standard. The sewage discharge should be controlled below 5%, and the best is 2%; various pipes and valves should be prevented from leaking steam and water, and the total leakage should not exceed 2%-3%. Make the system and equipment work in the best condition.
2. Energy saving by using condensate recovery technology. Whether it is a coal furnace or an oil (gas) furnace, the steam generated by them passes through the production heat equipment to generate condensate. More than 95% of the users of industrial boilers in use do not recycle the condensate, and most of them are discharged as waste water. In fact, the temperature of this part of condensate can be as high as 60-100℃ and the water quality is good. If it is recycled, it can save water treatment costs and reduce oil (gas) and coal consumption. From the existing condensate recovery cases, energy saving can reach 10-15%, which is a high-efficiency, low-investment energy-saving method.
3. Energy saving by heat insulation. Many industrial boiler bodies, steam pipes and heat-consuming equipment in use are exposed to the air or only simple insulation is adopted, and a large amount of heat energy is dissipated during the transmission process. If the boiler body, steam pipes and heat-consuming equipment are insulated, the insulation and energy-saving effect is obvious.
4. Energy-saving transformation of control system There are two types of energy-saving transformation of industrial boiler control system. One is that the operating parameters of the main auxiliary blower and induced draft fan of coal-fired boiler are directly related to the thermal efficiency and energy consumption of the boiler. Use appropriate speed regulation technology to adjust the blower and induced draft volume according to the load requirements of the boiler to maintain the boiler in the best condition. On the one hand, it can save boiler coal and save the power consumption of the fan, and the energy-saving effect is very good. The second is to transform the original manual control or semi-automatic control into full-automatic control. This type of transformation has a good energy-saving effect for boilers with large load changes and frequent changes, which can generally reach about 10%.
5. Furnace arch transformation According to the actual type of coal used, the shape and position of the furnace arch can be appropriately changed to improve the combustion condition, improve the combustion efficiency, and reduce coal consumption. Now there is a furnace arch configuration technology suitable for a variety of coal types. This transformation can achieve an energy-saving effect of about 10%, and the technical transformation investment can be recovered in about half a year.
6. Energy-saving and consumption-reducing measures for boilers equipped with economizers (oil and gas) Installing economizers, air preheaters and other economizers on the flue can reduce the exhaust gas temperature to below 150, greatly improve thermal efficiency and reduce coal consumption.
7. Technical transformation of coal feeding device The layered combustion device mainly improves the coal feeding device of the furnace. Generally, a coal feeder is installed at the outlet of the coal drop port to loosen the dropped coal and control the amount of coal added. The coal is separated and graded according to the particle size through the layering components, so that the coal layer on the grate is orderly divided into two or three layers according to different particle size ranges, that is, the screening device is used to distribute the raw coal in blocks and powder loosely on the grate from bottom to top, which is conducive to uniform and reasonable air distribution, improve combustion efficiency, reduce the carbon content of ash and slag, and obtain a coal saving rate of 5%-20%, reducing costs. Very little investment and quick recovery.
8. Energy-saving and consumption-reducing measures by installing economizers (oil, gas) on boilers. Installing economizers, air preheaters and other economizers on the flue will not affect the normal use of the boiler, but can reduce the exhaust temperature to below 150°C, and can greatly improve thermal efficiency and reduce energy consumption.
1. Strengthening management and paying attention to the assessment of the technical level of boiler room managers and boiler operators plays an important role in boiler operation efficiency. Through intensive training of boiler room managers and operators, the professional knowledge of boiler operators and managers can be improved. Implement reasonable assessment rewards and punishments, carry out energy-saving competitions between operation teams, and improve the energy-saving awareness and sense of responsibility of boiler operators. Be familiar with the functions of systems and equipment, and regularly maintain equipment. Strengthen water quality management and clean scale regularly; reduce the amount of sewage discharged on the basis of water quality meeting the requirements of GB/T1576 "Industrial Boiler Water Quality" standard. The sewage discharge should be controlled below 5%, and the best is 2%; various pipes and valves should be prevented from leaking steam and water, and the total leakage should not exceed 2%-3%. Make the system and equipment work in the best condition.
2. Energy saving by using condensate recovery technology. Whether it is a coal furnace or an oil (gas) furnace, the steam generated by them passes through the production heat equipment to generate condensate. More than 95% of the users of industrial boilers in use do not recycle the condensate, and most of them are discharged as waste water. In fact, the temperature of this part of condensate can be as high as 60-100℃ and the water quality is good. If it is recycled, it can save water treatment costs and reduce oil (gas) and coal consumption. From the existing condensate recovery cases, energy saving can reach 10-15%, which is a high-efficiency, low-investment energy-saving method.
3. Energy saving by heat insulation. Many industrial boiler bodies, steam pipes and heat-consuming equipment in use are exposed to the air or only simple insulation is adopted, and a large amount of heat energy is dissipated during the transmission process. If the boiler body, steam pipes and heat-consuming equipment are insulated, the insulation and energy-saving effect is obvious.
4. Energy-saving transformation of control system There are two types of energy-saving transformation of industrial boiler control system. One is that the operating parameters of the main auxiliary blower and induced draft fan of coal-fired boiler are directly related to the thermal efficiency and energy consumption of the boiler. Use appropriate speed regulation technology to adjust the blower and induced draft volume according to the load requirements of the boiler to maintain the boiler in the best condition. On the one hand, it can save boiler coal and save the power consumption of the fan, and the energy-saving effect is very good. The second is to transform the original manual control or semi-automatic control into full-automatic control. This type of transformation has a good energy-saving effect for boilers with large load changes and frequent changes, which can generally reach about 10%.
5. Furnace arch transformation According to the actual type of coal used, the shape and position of the furnace arch can be appropriately changed to improve the combustion condition, improve the combustion efficiency, and reduce coal consumption. Now there is a furnace arch configuration technology suitable for a variety of coal types. This transformation can achieve an energy-saving effect of about 10%, and the technical transformation investment can be recovered in about half a year.
6. Energy-saving and consumption-reducing measures for boilers equipped with economizers (oil and gas) Installing economizers, air preheaters and other economizers on the flue can reduce the exhaust gas temperature to below 150, greatly improve thermal efficiency and reduce coal consumption.
7. Technical transformation of coal feeding device The layered combustion device mainly improves the coal feeding device of the furnace. Generally, a coal feeder is installed at the outlet of the coal drop port to loosen the dropped coal and control the amount of coal added. The coal is separated and graded according to the particle size through the layering components, so that the coal layer on the grate is orderly divided into two or three layers according to different particle size ranges, that is, the screening device is used to distribute the raw coal in blocks and powder loosely on the grate from bottom to top, which is conducive to uniform and reasonable air distribution, improve combustion efficiency, reduce the carbon content of ash and slag, and obtain a coal saving rate of 5%-20%, reducing costs. Very little investment and quick recovery.
8. Energy-saving and consumption-reducing measures by installing economizers (oil, gas) on boilers. Installing economizers, air preheaters and other economizers on the flue will not affect the normal use of the boiler, but can reduce the exhaust temperature to below 150°C, and can greatly improve thermal efficiency and reduce energy consumption.