2-20t automatic industrial gas fired boiler

2-20t automatic industrial gas fired 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 2-20t automatic industrial fired 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.

Gas 2-20t automatic industrial fired boiler room gas leak serious harm to the increasingly tense in recent years as the price of coal and coal supply more of our day to rise, more and more companies turning to heating gas heating from conventional coal-fired heating, gas supply heat its environmental protection, energy conservation in the country has been more widely used, especially gas central heating boiler room the most popular. So gas boiler room safety management has also become an important issue in the heating industry attention. In recent years, Nansen boiler room with heating company EMS / OSH / HSE management system as the carrier continued analysis of hazards and risks boiler room gas leak, the development of effective preventive measures, the use of a number of advanced new technologies at home and abroad, new technology and new equipment to ensure the safe and stable operation of the boiler room. The main component of natural gas we use are: methane content 98, the content of 0.3 propane, butane content of 0.3, 1 and the nitrogen content of other substances, high calorific value 9650 kcal / standard side, the low calorific value 8740 kcal / standard side, explosion limit: 5-15. We call regional gas may leak means natural gas pipeline, a valve table, fitting between the regulator from the station to the boiler (including boilers) and the like. Wherein the regulator station for the fan to between buried pipeline between the boiler to fan out to the overhead line. Gas explosion in an instant, (the number of thousandths of a second) the production of high-temperature (up to 3000 deg.] C), high-pressure combustion process, explosion velocity of up to 300m / s, resulting in a great destructive power. If a natural gas leak encountered fire, static electricity, lightning or improper operation such as an explosion, a fire in a confined space will make people hypoxia, asphyxia and even death, to production safety and the state and the people incalculable loss of life and property .

Problems coal 2-20t automatic industrial fired boiler gas boiler gas coal problems are: 1, more coal ash, 2, unevenness of coal particles, 3, coal contains a large amount of impurities, 4, a lower heating value of coal, 5 when combustion is not easy to ignite fire, 6, coal moisture content uncertain. 7, does not burn coal, slag high carbon content. In general, use is preferably designed coal boiler design coal or coal close, in order to ensure stable combustion. In recent years due to the growing tension surrounding the coal supply, coal supply has become diversified, coal quality is very different than before coal, have a great impact on the stability of the boiler combustion and normal heating operation. Impact of coal combustion boiler stable for: calorific value of coal is coal reflects an important indicator of good or bad, when the low calorific value of coal to a certain value, will not only affect the incomplete combustion instability and can lead boiler flameout, the outlet temperature of the boiler is difficult to compliance, affecting the normal operation. Volatile combustion and can be deposited at lower temperatures, as the combustion heat, the temperature rapidly increased coke particles, provide an extremely favorable conditions for ignition and combustion, volatiles further increased coke deposition and internal voids and the external reaction area, will help improve the speed of burning coke. Thus, the greater the content of volatile, nonflammable, the less fixed carbon in the coal component, the easier coal burning ember, devolatilization of many voids, increases the surface area of ​​the reaction, the combustion reaction is accelerated. When the volatile content is reduced, pulverized coal ignition temperature significantly increased, the hot increases, difficult fire, ignition time required becomes longer, the combustion stability is reduced, shifting the center of the flame, furnace absorbed radiation heating surface reduce heat, increase the heat absorption of the convection heating surface, the rear exhaust temperature, exhaust loss increases.

Factors affecting the energy saving heating 2-20t automatic industrial fired boilers What are the reasons 1, strictly control the temperature of the boiler exhaust gas boiler heating some of the heat loss, exha reduce flue gas heat loss is an effective way to achieve energy-saving heating boilers. There is a certain temperature difference between the outdoor air temperature and the exhaust gas temperature. When the outdoor air temperature is lower than the exhaust gas temperature, exhaust heat loss is generated. Accordingly, the heating boiler exhaust gas temperature should be strictly controlled within the controllable range. If the exhaust gas temperature is too high, if the exhaust gas temperature is too low may increa, it will lead directly to the heating boiler running cost increases, which is due to the increased tail heating surface, so that the exhaust gas temperature as low as possible. In the energy saving work boiler should be carried out technical accounting and economic accounting. Accounting based on the dew point of the smoke, the tail heating surface and heat loss due to the consumption of the metal. 2, the carbon content of the slag reduce heating boiler First, the operation of the heating boiler in order to ensure the heating boiler that burns coal, the coal particle size be controlled, full use of coal resources, while achieving the purpose of protecting the environment. Secondly, reasonably boiler operating parameters adjusted to reduce the carbon content of the slag, that the ratio of coal to air is more reasonable and the coal before combustion in the furnace. Furnace temperature is a key factor in the index reflects a lot of energy-saving operation of the boiler. The carbon content of slag is one of them. In order to ensure energy saving heating boilers, efforts should be made to reduce the carbon content in the slag, timely elimination of negative factors affecting the normal combustion boiler. 3, the outer surface of the boiler furnace control temperature of the boiler size of the heat affected second two factors is the temperature of the boiler outer wall. It is also important for the outer wall temperature of the boiler, the influence of the external surface temperature of the boiler heating boiler. Relatively larger exterior wall area, the higher the temperature of the external walls, the greater the amount of heat to the surrounding environment. To reduce the heat radiation loss of a boiler, the boiler must be controlled outer surface of the body temperature. 4, to improve the thermal efficiency of the thermal efficiency of the heating boiler heating boiler is a comprehensive index of energy-saving measures. Improve the thermal efficiency of heating boilers, but also help to improve energy efficiency and heating boilers. Improve operational level boiler operator, control of boiler operating conditions, timely maintenance heating boilers, heating boilers to save energy. 5, timely monitor the operation of heating boilers timely monitoring of the operation of heating boilers, not only improve the operational efficiency of the boiler, environmental protection can not be underestimated. Different boiler room should take different measures, timely monitoring of the operation of heating boilers. Spread the boiler room should be checked by installing equipment, computer monitor should focus boiler room.

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