High Quality China Manufacturer Coal Fired Steam Boiler
During installation, the technical team fast boiler plant according to the specific needs of our environment, our rational arrangement of stacks, pipes, and other auxiliary equipment, let us bring a lot of convenience in the latter part of the course. Fang fast responsible attitude also gives us impressed, sent a technical team for installation, commissioning and training to us, let us rest assured, peace of mind, peace of mind. --customer feedback
Small high quality china manufacturer coal fired steam boilers will be fully modernized popular in the market after the 1980s, China's economy has undergone rapid changes in boiler industry is more prominent, national boiler manufacturing companies increased by nearly 1/2, small steam boilers will be fully prevalent in the modern market, and It can be formed independent development of generation after generation of new products. Small steam boiler is the era of economic development indispensable commodity, what the future will bring, but is well worth study. Group mainly used for small industrial R & D and production of small steam boiler, as far as we know, much higher production of small steam boiler manufacturers of small steam boiler prices, leading to small industrial input costs are also high, so many customers stay away, we had to continue small traditional steam boilers. Small steam boilers will be fully popular us on this cost, has been doing research experiments, and finally developed a small steam boilers for small industrial production process used at the beginning of 2017, we produced a small overall structure of the steam boiler Unlike other steam boilers in the modern market , through our special processing technology, the structure of the entire boiler changes, the use of safer, lower operating costs, more cost savings for small industry owners. Small steam boilers will be fully prevalent in the modern market, the Group's how we analyze the energy industry Riding out the following four points:? First, in terms of environmental protection, small steam boiler burning material is primarily natural gas, natural gas is a now clean energy, without waste combustion, the exhaust gases, as compared to coal, oil and other energy sources have a safe, high calorific value, clean and other advantages. Small steam boilers will be fully prevalent in the modern market two small steam boiler from a safety point of view is generally aspirated pipeline, the use of gas pressure units pre-tuned, fuel combustion more fully, the boiler is stable. Third, the thermal efficiency perspective, a small part of a steam boiler steam boiler pressure, since the connection within the furnace condensing system, the exhaust gas temperature is less than 110 deg.] C, operating thermal efficiency of 93%. Fourth, the use of the economic point of view, since the small water capacity of less than 30 liters steam boiler, from cold start to 5 minutes to produce saturated steam, warm-up time is greatly reduced, saving energy. Automatic intelligent operation, no fireman guard, eliminating salary expenses. Small steam boilers will be fully prevalent in the modern market is not difficult to see that the future prospects for the development of small steam boiler is very broad, because it is a vertical, small, small footprint, easy installation, small steam boiler to replace the traditional small excellent product steam boiler.
What is the principle of the boiler? No matter how much the tonnage, the boiler works basically the same. Role of the boiler fuel chemical energy is converted into thermal energy, heating and heat inside the pot with water to become superheated steam having a mass and a sufficient amount (steam temperature, steam pressure) of the steam turbine for use. Now the power plant boiler capacity, high parameters, technical complexity, high levels of mechanization and automation, the main fuel is coal, and coal prior to combustion of pulverized coal first made, and then into the boiler combustion heat release in the furnace. Broadly speaking, the work process is the main boiler fuel combustion, heat transfer, vaporization and heating of the water with the superheated steam and the like. The entire boiler boiler composed of two parts and auxiliary equipment. Boiler: boiler body is the main part of the boiler equipment, is composed of two parts, "pot" and "furnace" composition. "Pot" is the soda system which main task is to attract the heat receiving fuel discharged, the water is heated, evaporated and finally becomes superheated steam having certain parameters. It consists economizer, the drum, the downcomer, the header, water wall, superheater and reheater connecting pipes and other equipment and valves. 1) economizer. Vertically positioned rear of the boiler flue, the use of flue gas waste heat boiler feed water, reducing the exhaust gas temperature, increase boiler efficiency, fuel economy (2) drum. At the top of the boiler, it is a cylindrical pressure vessel, which is under water, the upper portion of the steam is that it accepts the economizer runoff, while the downcomer composed header, Wall water circulation circuit. Wall water absorbs heat generated in the soda mixture was collected in the drum, conveyed by the saturated steam to the superheater steam-water separator (3) downcomer. Water supply pipe water wall, the effect of which is introduced into the water in the steam drum to the lower header redistribution respective waterwall tubes. Dispersion in small diameter and the large diameter downcomers Downcomer two kinds. Small diameter tubular small diameter drops, the water cycle of negative (4) waterwall lower header. The main role of the header is a mass pooled or working fluid through the header to the header redistributed through other conduits. A water wall is thicker lower header tube closed at both ends, its role is connected to the downcomer and the water-cooled wall, so as to function together, mixing, redistribution effect working medium (5) water wall. At the furnace around its main task is to absorb radiant heat of the oven, to evaporate water, which is the main heating surface modern boilers, while protecting the furnace wall (6) superheater. Its role is to drum saturated steam into superheated steam on heating (7) having a predetermined temperature reheater. Its role is done in the steam turbine power section is heated up again, and then continue to work in the steam turbine. "Furnace" is the combustion system, its task is to make the fuel burn in a good furnace, heat. It consists of the furnace, the burner, ignition means, air preheater, the smoke duct and the furnace wall, frame and other components. (1) furnace. It is transferred from the furnace wall and into the water wall for fuel combustion, the fuel combustion in suspension, the release of large amounts of heat within the space. (2) burners. Located on the furnace walls or corners, its role is the fuel and air injected into the furnace at a constant speed, so that it can be well mixed in a furnace in order to ensure timely ignition and rapid and complete fuel combustion. DC sub-burner and swirl burner two basic types. (3) air preheater. Located in the boiler backpass, whose role is to use waste heat of flue gas to heat the fuel required for the combustion air, exhaust gas temperature can be further reduced not only, but also for strengthening the furnace combustion, improve the economy of combustion, pulverized coal drying and conveying is advantageous of. Boiler efficiency can be increased by 2%. And rotary two kinds of charge. (4) smoke duct. From the furnace wall is a pipe, the pipe heating surface and the portion of the tube wall and other components of the package, for guiding the flow of flue gas through the heat exchanger and the respective heating surface, and is divided into horizontal flue backpass. Auxiliary ventilation apparatus comprises auxiliary equipment (delivery, induced draft fan), a fuel transportation equipment, milling system, in addition to ash and dust removal equipment, desulfurization equipment.
Small electric high quality china manufacturer coal fired steam boilers What are the benefits, features? First, electric and coal, oil steam generating comparative advantages and disadvantages: advantages and disadvantages of coal: Advantages: coal is the most economical energy per kilogram of coal can produce more than 5,000 calories, can produce about 6 kg steam (theoretical value). Both economical than electric, fuel oil and natural gas. Disadvantages: 1, low efficiency, although theoretically per kilogram of coal can produce more than 5,000 calories, but due to the limitations of coal-fired boilers and human factors affected the Boilermakers, the real heat of the steam is converted to produce much smaller than the theoretical value, the heat utilization rate of around 60%. 2, can not do automatic control, if the device is not continuous steady steam steam that instant steam consumption fluctuations, the steam produced by the boiler with the steam in the bottom of the valley steam equipment can only let go waste. 3, need specialized operators, high labor costs. 4, do not meet the requirements of modern environmental protection, to ban small coal-fired boilers is the trend. The advantages and disadvantages of fuel: fuel meets the requirements of environmental protection, the state has not been expressly provided, however, based on current oil prices, its economy has ceased to exist. Per liter of oil can produce more than 18,000 calories, about 60% utilization, we can produce about 10 kg of steam. Which produce one ton of steam costs around 800 dollars (at current prices). The advantages and disadvantages of heating: Cons: Because electricity is converted from the other sources of energy, so the relatively high price point, once electricity can produce about 1.5 kg of steam. Calculated to produce 1 ton of steam costs about 400 yuan or so based on the current average domestic electricity bill. More expensive than coal.