Natural Circulation 3500kw Gas Hot Water Boiler

Natural Circulation 3500kw Gas Hot Water Boiler

Note the boiler operating at low load range of the boiler load change is normal: coal-fired boilers typically 70% -100% of rated evaporation; oil furnace is 60% -100% of rated evaporation. Below this range is the low-load operation. The main problem is the low-load operation, poor combustion stability, we must prevent the fire and explosion at the furnace, natural circulation boiler must also consider the safety of the water cycle. Thus, when low load operation, the boiler attention to the following aspects: 1, should be as low-load burning high volatile coal. When low volatile coal, during unstable combustion, combustion should be put into the ignition oil gun, in order to prevent possible fire. 2, input at low load the burner should be more uniform, the number of burners should not be too small, which is good for both combustion stability and prevent individual parts of the water circulation is not normal. 3, the speed should be slow changes in the load, and adjust the air volume. Note that maintain a steady wind pressure, which should be the primary air volume is too large. Burner input and deactivation operation should be slow. 4, oil-fired boiler during low load operation, since it is difficult to ensure the combustion quality of oil, should be taken to prevent droplets caused by the re-ignition of unburnt flue tail. 5, low load operation, to minimize the use of desuperheating water (mixing desuperheater), but it should not be heated Save the door shut. 6, low load operation, the exhaust gas temperature is low, the possibility of low temperature corrosion is increased. Therefore, they should put warm or hot air recirculation.

Energy-saving measures and methods of industrial boilers which industrial boiler energy-saving measures and methods which 1, to increase the capacity and improve the thermal efficiency of boilers and inefficient small compared to the large-capacity high-efficiency industrial boilers, can greatly improve the utilization of energy rate, so as to obtain greater economic benefits. Meanwhile, the cogeneration project enables conversion of exhaust or extraction steam turbine for heating, not only can reduce the loss of turbine exhaust steam, but also help to save coal resources. Industrial boiler thermal efficiency of China's low is a fact that can not be ignored, usually operating efficiency even lower. Therefore, improving the efficiency of industrial furnace hot pot, is crucial for energy savings. In one aspect, by improving the quality of the insulating material, thicker insulation, heat loss can be reduced. On the other hand, the use of secondary air system, can facilitate a more complete combustion of fuel, the effect is very significant. 2, the heating surface to reduce coking and fouling of industrial boiler during running, prone to coking, fouling phenomenon, resulting in increased and then decreased local resistance to the flow cross section. Not only conducive to smoke, but also so that heat transfer is reduced, further increasing the temperature of the flue gas. Industrial boilers and cleaning agent has a good cleaning effect, can be put in the appropriate amount sublimation decompose at high temperatures, with the heating surface of the coke, slag and contacts a chemical reaction can be automatically off after decomposition. Meanwhile, a method of periodically purging is also more effective in the early formation of fouling was loose state can be cleared periodically sootblowing. If the attachment is too long time, will translate into close like fouling, thus increasing the difficulty of cleaning up. 3, to ensure the quality of coal and industrial coal-fired boilers with coal is crucial, its moisture, volatile content factor for the speed of fire, as well as affecting the combustion temperature is extremely obvious. Maintain proper moisture content can be reduced with reduced leakage occurrence of coal and fly ash, coal seam and helps enhance the evacuation ventilation. If the moisture content is too high, will affect the speed and the temperature in the furnace, heat loss will be increased exhaust smoke. Industrial water boiler heating surface for scaling impact of large scale for each additional 1mm, the overall thermal efficiency of the boiler will be reduced by 3%. 4, many factors affect the lower exhaust gas temperature industrial boiler flue gas temperature, within the course of the economizer scale, cleaning up soot neglect of smoke in the furnace wall channeling smoke, poor treatment effect, can cause elevated exhaust temperature. On the one hand, to deal with the heating surface appears slagging, fouling and scale phenomena take timely measures to eliminate, minimize or avoid their presence. On the other hand, on the rear of the boiler heating surface is improved or increased. Industrial boiler flue gas temperature, objectively reflects the utilization of exhaust heat. But not as low as possible, the exhaust gas temperature is too low but not conducive to the normal operation of the boiler.

More than 40 representatives from various industries across the country gather together in the group headquarters, systematic training and study and visit. Training excluded from the boiler system principles, common faults, maintenance meaning three aspects, the system elaborated from design, manufacturing to installation, commissioning, maintenance matters should be noted that several stages, delegates took the floor, the actual situation of the unit, asked in detail about the future direction of maintenance work required effort.

Care coup gas boiler gas boiler as the name suggests refers to the fuel gas boiler, and it fired boiler, electric boiler compared to the more economical, so most people are choosing it as steam, heating, boiler equipment for bathing. Then its care coup, what does? 1, during operation of the gas boiler note the following points: (1) does not allow pressurized furnace burning or smoke, because stoker hole cover easy to burn. (2) on the bottom ground plane is not water, to prevent wet etching. 2, gas boiler run every 2-3 weeks, should be checked once. 3, gas boiler run every 3-6 months after the shutdown should conduct a comprehensive inspection. (1) and outside it to check if the pressure receiving portion of the weld, the steel sheet or absence of internal and external corrosion, should be repaired if found in serious defects, if not a serious defect also to be repaired when the next shutdown, if there suspicious, but does not affect safety during production, should make records for future reference. (2) can be checked and the water boiler primer coating to prevent corrosion. 4, gas boilers and boiler base paint at least once a year. 5, maintenance of gas boiler normally unused methods: dry and wet two kinds, one month shutdown, care should be taken dry method, wet shutdown can be less than one month regimen. About Care coup gas boiler small series first introduced here today, if you want to know more, please stay tuned to this site.

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