1, should guarantee the smooth flow of flue gas, have a good fullness and should avoid dead ends and dead.
2, the burner should be provided at the height position of the center of the furnace, and the combustion space and has sufficient length. Flame should not be flushed to the wall heating surface, so as to avoid incomplete combustion gases local overheating and damage to the wall.
3, since the combustion gas in the furnace backlash, high thermal strength, exposed to the bottom of the drum in the furnace should be adiabatic process.
4, various pipes, fire tube boiler furnace wall substantially refractory brick masonry, and shield plus insulation material. In the "coal to gas" should pay attention to the tightness of the furnace wall, minimizing the original door, door checks, etc., can assemble the refractory block, prevent cold air flames wounding or excessive leakage into the furnace , affecting boiler efficiency, to see the fire hole must remain closed also should see the fire hole, heat-resistant glass viewing by fire.
5, the furnace boiler and gas than coal-fired boilers, is generally greater, there is sufficient combustion space, increase the volume of gas, does not affect the transformation of combustion conditions. If the user requests output significantly improved boiler, the furnace can be increased radiation heating surface, to remove scale and soot while the inner surface of the outer heating of the original, so that without increasing the volume of the boiler case to improve the boiler output is not a problem. Thermodynamic calculations must do in the boiler, while the smoke but also good wind resistance calculation intensity calculation.
Biomass power generation is attracting more and more attention because its nearly net zero emission of carbon dioxide and its high fuel flexibility. Compared to coal, biomass has lowemission of SOx and particulate matters from the combustion process because its low sulphur and ash content. So biomass utilization played a significant role in the development of environmentally friendly society. Grate-fired coal fired boiler supplier mauritania has the advantages of lOW investment cost and high ruel flexibitity and it iS the main technology of biomass power generation and heat supply. In this paper, numerical similation of the flow field Was carried out with FLUENT software for double—grate biomass fired boiler, the results were validated by experimental data taken from a 1/30 scale cold model of the prototype.
Recently many of my friends to consult some "coal to gas" issue, the cost is certainly more expensive than coal-fired coal fired boiler supplier mauritanias, but specifically how much more expensive? The count this account of how the enterprise? We've put together some information for your reference.
Dezhou City, Shandong Province issued - an important part of "Dezhou 2018 2020 coal consumption reduction alternative work" (the "Program"), the Yajian coal consumption as an ecological civilization construction and environmental protection work, and resolutely fight pollution prevention tough fight. "Plan" put forward, as of 2020, total coal consumption Dezhou control in less than 18.5 million tons, clean heating rate of 70%.
According to "program" requirements, Dezhou vigorously for shutting down the environmental, energy, security and other 300,000 kilowatts of coal-fired units of non-compliance, especially running at least 20 years of pure condensing units and over 25 years of condensate pumping thermoelectric unit. At the same time shutting down out of small coal-fired boilers to reduce coal pollution. Upon completion of the city's 10 steam tons / hour and coal-fired boilers are all clear on the key areas in national, provincial and determined basically eliminated 35 tons of steam / h coal-fired boilers, 65 tons of steam / hour or more coal-fired boilers completed energy efficiency and ultra-low emissions transformation.
Dezhou will also expand the scope of central heating, promoting clean urban and heating, 2020, the Center City District (Germany City, Texas Economic Development Zone, the Canal Economic Development Zone) central heating area of 45 million square meters, the other 10 counties (cities, districts) central heating area of 41 million square meters, the implementation of central heating pilot projects in rural areas where conditions permit. For areas not covered by central heating, according to the resources in the area of heating conditions, combined with infrastructure construction, promote the substitution of gas for coal to other electricity-generation clean energy alternatives such as coal and biomass. As of 2020, Dezhou city's average clean heating rate of 70%. Among them, the city basically clean heating comprehensive coverage, average clean heating in rural areas reached about 55%.
In addition, Dezhou will continue to increase the proportion of natural gas consumption, substitution of coal consumption, encourage the development of direct supply of natural gas to large users to promote key industrial enterprises, industrial parks to achieve direct supply of natural gas. By 2020, increase the proportion of natural gas consumption in energy consumption to about 7%.