In the winter season, Fushun City, the town of Dongzhou District hada Liaoning Province, this ancient village is undergoing a transformation heating, core change is the use of "provinces" biomass boiler.
Yao is the inventor in "provinces" biomass boiler. He said, "provinces" boiler, that is, to save money, labor, and material. Combustion and conventional combustion boiler essentially different, are in the normal combustion surface of the fuel from the outside and inside, top-down combustion, using a strong wind, or take pulverized fuel, and other physical and chemical techniques, cause the fuel in the shortest rapid combustion of the time. "Provinces" boiler contrary, starting from the bottom of the combustion of solid fuels, from the bottom up, a minimum amount of intake air by controlling the slow combustion. In 2013, the innovative energy-saving combustion technology obtained national patent, and Chinese Academy of Sciences Institute of Engineering Thermophysics, experts Tsinghua University, Tianjin University and Harbin Institute of Technology as "domestic initiative, the leading domestic" and suggested in our rural north conduct a comprehensive promotion.
Yao said in the last year, Dongzhou District not only invest in the construction of "provinces" biomass boilers, but also the laying of underground pipe network 3500 meters, central heating ancient village 30 farmers.
We understand that in 2016, Fushun City, has more than 600 households will be "provinces" boiler for the production and life. 2018, Fushun City, the ancient village of straw as a pilot village central heating, promoting the use of "provinces" boiler.
"With the gradual popularization of rural straw central heating, greenhouses can pick Heating, sustained economic heating greenhouses; straw waste form the commercial mode of operation into treasure, straw harvesting, transportation, storage, processing, a new farmers' income channels; the sky bluer, the water clearer, more green mountains, beautiful environment will inevitably become a new growth point of the rural economy but to embark on a modern intensive production, road projects of market-oriented operation, there is still a way to go. . "in Yao she said.
Improve the thermal efficiency of the process wns gas boiler, oil-fired boiler which chemical incomplete combustion heat loss and mechanical incomplete combustion heat loss. Because almost no ash after combustion of the gas boiler, solid and liquid fuels without mechanical incomplete combustion, there is no need to consider the mechanical incomplete combustion of the gas boiler heat loss. In all heat losses, heat losses have tremendous proportions, when the high thermal efficiency of boilers, heat losses so the total loss of the main heat losses of fuel gas-fired boiler flue gas heat loss is the exhaust gas temperature and For air excess factor. When the exhaust gas temperature decreases, high thermal efficiency can be obtained, for example, a conventional three-pass wns steam boiler example, furnace used in the past straight and smooth smoke tube, must increase the heating surface is arranged to make the exhaust gas to an acceptable degree, the theoretical discharge around the smoke heat loss. Potshell causing significantly increased diameter, wall thickness increased, greatly increased metal consumption, thus further reducing the exhaust gas temperature should be greatly restricted. From the aspect of heat transfer is not only now consider only the heated area, the use of new technology enables heat transfer performance significantly increased, the difference between the heat transfer overcomes the disadvantages of the past performance of the boiler, so that the exhaust gas temperature decreases, the structure is more compact. Center back boiler combustion boiler is preferably small foreign structure, although the two-pass boiler, the heated area is small, but the use of the turbulator charming, the purpose of enhancing the turbulence of the flue gas, disrupt laminar flow boundary wall, reducing the thermal resistance, increasing the heat transfer coefficient, a smaller heating area to achieve the same high thermal efficiency. Lower exhaust gas temperature limit in theory, the exhaust gas temperature can be reduced to very low or even close to the ambient temperature, for maximum thermal efficiency. However, in practice, due to the reduction of the exhaust gas temperature, low temperature corrosion will cause, therefore, the exhaust gas temperature can drop too low, in order to ensure that the wall temperature is higher than the main boiler heating surface flue gas dew point temperature. Therefore, low-temperature corrosion has become a major obstacle to reduce exhaust gas temperature and improve the thermal efficiency of the boiler. Tail auxiliary heating surface increases, further reducing the exhaust gas temperature, fuel gas wns improve thermal efficiency of the boiler as the oil, gas fuel burn easily wns type gas boiler air preheater generally not disposed. The economizer means is a common energy, which can be recycled flue gas was able to effectively reduce exhaust gas temperature. Separation type condensing gas boiler is out of the main boiler heating surface, the installation of the condensing heat exchanger. In one aspect of the flue gas absorption can significantly reduce the smoke temperature, reducing heat losses, on the one hand the absorption of part of the potential condensing water vapor released, increasing the effective use of heat of the fuel. Ash cleaning, to ensure that the heating surface of the scale wns boiler thermal efficiency of the boiler, the presence of soot fouling and heat transfer resistance increases, reducing the heat transfer effect. The thermal conductivity of the scale and soot is almost of the same order of magnitude, with the increase in scale, soot, the exhaust gas temperature rapidly increases, the thermal efficiency is significantly decreased. So, keep the boiler heating surface inside and outside clean, efficient heat transfer, thermal efficiency and to ensure the safe and economic operation of boilers, boiler fuel gas-fired boiler ash cleaning is required.
Different kinds of specific models boilers and thermal power plants use which: boiler, which from the application point of view, is very broad, and it is still the flagship product box boiler, which also includes different types of boilers, therefore, based on the above it two points, and in order so that we can further awareness and understanding of the boiler, below, will continue to explain the knowledge in this area, never to achieve the above purpose. 1. boiler, whether according to different classification criteria, there are different kinds? Each of its kind, which specific model? Boiler, which according to different classification criteria, there is a different species. So, a question on which the answer is yes, but this is no doubt. Therefore, I hope that we can have a clear understanding. Water in boilers, in which the specific models, are KS-D electric water boilers, KS-Y water boiler fuel, KS-Q water gas boiler, and KS-AII these coal-fired boiler water. Hot water boiler, there CLDZ electric water boiler, CLHS oil hot water boilers and coal-fired hot water boilers and other CLSG these. The wns steam boiler example, there LDR electric steam boiler, LHS fuel steam boilers and coal-fired steam boilers DZL these.
Henan daily operation of the gas boiler 1. Contact chemical maintenance, turbine attendant prepare enough desalinated water, oxygen, water passing temperature no higher than the drum wall temperature 50 ℃; Sheung during hot drum wall temperature should be , metal temperature is not more than 40 ℃. 2. After the new installation or repair before Henan Gas Boiler Feed recorded once ministries indicate expansion. 3. Sheung summer time less than 2 hours, at least 4 hours in winter, when the temperature and Sheung drum wall temperature difference of less than 40 ℃ 4. How Henan gas reheater boiler corrosion protection? (1) turbine playing gate , to ensure that a boiler blower, preferably a cross ID fan, two reserved oil gun. (2) open to the air reheater exhaust steam reheater hydrophobic air door and the door be preserved, to be preserved reheater predetermined temperature below 400 deg.] C for steam. (3) controlling the drum water level within an allowable range. (4) to ensure that the chamber negative pressure 50--100Pa, each of the flaps open, baffle for ventilation less than 5 minutes, stop sending, Fan, each of the flaps closed tailgate may be appropriate to accelerate Sheung speed.Free Chat
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