qualified brown coal boiler

Low NOx emission combustion qualified brown coal boiler technology a boiler combustion boiler hypoxic hypoxia NOX emissions from combustion is the easiest way to control. And a combustion burner system does not need to make any changes, only control air flow into the furnace in operation, pulverized coal combustion process as close to the theoretical combustion air amount. Low oxygen combustion scheme can reduce NOX emissions by 20% to 30%. The program practical application subject to conditions. Low oxygen furnace, will increase the amount of unburned carbon, and more difficult for the flame of burning coal more obvious; Further, the CO concentration is also increased so that smoke, which will cause decreased boiler efficiency. Another problem is that for certain boilers, hypoxia causes the main combustion steam or reheat steam temperature is low. The burning coal to immediately, boiler efficiency and reduce the magnitude of steam temperature and other properties to determine the appropriate control value of flue gas oxygen furnace outlet (at or economizer) the specific embodiments. Second, air staged combustion technique combustion air into a plurality of strands, it is gradually mixed and pulverized coal combustion, so you can see the local area to reduce the air-fuel ratio, and the thermal decomposition of coal in the ignition phase, due to hypoxia, and thus the nitrogen oxide generation is suppressed. Air classification may be implemented within the combustor, the boiler can be completed within. 85% of the amount of air required for complete combustion is introduced to the main burner, the main burner combustion zone is insufficient oxygen for the fuel-rich conditions. Due to insufficient amount of oxygen, the flame temperature is low, the amount of nitrogen oxides to less generation of fuel nitrogen intermediates (e.g., NCH, NH3, etc.) will therefore not be oxidized NOX. Meanwhile, it has been possible to further reducing NOX generated in a reducing atmosphere to molecular nitrogen (N2 of), as a result reduces NOX emissions. An upper portion of the top floor is provided Ge overfire air (of OFA) spout into the furnace through which about 15% of the rest of the air, to avoid the high temperature flame zone, it is also possible to burn unburned carbon particles, to complete the combustion process.

Environmentally friendly gas-fired qualified brown coal boiler combustion gas combustion five characteristics: In recent years, many cities frequently haze, caused widespread concern and heated debate. China is in the energy structure adjustment period, the task is urgent, the situation is very grim. Energy saving boiler gas boiler is the time to show their talents, its good energy efficiency and excellent environmental capacity, more and more enterprises of all ages. Here we analyze the characteristics of its advantages from the combustion of gaseous fuel. The fuel gas is a highly efficient, clean energy, its relatively low ignition temperature, the flame may spread rapidly to all parts of the furnace, the rapid combustion, facilitate gas, mixed with the combustion process is automatic, has the following characteristics: (1 ) virtually zero pollution combustion characteristics coupled with substantially does not produce ash, nitrogen content and sulfur content should be much lower compared to the fuel oil and coal, flue dust contained in the combustion rarely, very help protect the environment, essentially non-polluting combustion, even the most stringent environmental requirements of the region also ease of use, while gas fuel delivery pipes are based, will not produce ash, during transportation and storage leakage of harmful gases, dust and noise pollution does not occur. (2) facilitate adjustment of combustion. Transport pathways is the fuel gas conduit, through the valve, damper adjusted accordingly, adjust the air consumption can be achieved quickly adapt load changes, low oxygen combustion can be realized, thereby improving the thermal efficiency of the boiler. (3) Good job. Compared with the fuel oil, fuel gas from the transport duct, direct supply, eliminating the sump, fuel tanks and other household members. In particular compared to the heavy oil fuel, eliminating the need for heating, thermal insulation and other aspects. Gas system is relatively simple, the operation is relatively easy to manage, easy to automate. (4) easy to adjust the amount of heat. When LPG combustion, part of the air is added, to avoid the part of both the explosive range, you can adjust the amount of heat. (5) There are some disadvantages gas fuel, when mixed with a certain proportion of air, it will form an explosive gas, most of the fuel and the gas composition to humans or animals asphyxia toxic, so the security is very high. Boiler attaches great importance to the security of energy saving gas boiler in the production, testing process strictly guard the quality, as long as the practices in use, accidents will not happen.

Oil-fired qualified brown coal boiler and gas boiler which is better fuel boiler gas boiler which is better? This is not just a troubled two things. 2013 is a very important development in the boiler of the year, in order to better protect our living environment, minimizing air pollution, the provinces and cities have launched a wave of coal-fired boiler. Phasing out coal-fired boiler, the gas, oil, electric boiler their own sales ushered in a small peak. Coal-fired boiler, a few happy worry. Boiler unit requires investment in human capital to complete the transformation, if it is relatively long service life of coal-fired boilers directly facing out new ones, also means to invest more money, so many SMEs facing cash flow problems; and the most fun undoubtedly with nearby residents furnace unit, coal-fired boiler in the usual operation will bring air pollution, dust, pollution and even give them a normal life brought a greater or lesser extent. From long-term point of view, the transformation of coal-fired boilers benefits the country is a big project, not only can improve the combustion efficiency of the boiler business, for prevention of air pollution, improve the living environment is playing an active role in promoting. Coal-fired boiler furnace may also give enterprises a number of other problems, Anhui Wang recently to help small series through microblogging, I do not know in the end unit suitable for gas or oil-fired boiler. It turned out that the problem facing the transformation of boilers, Mr. Wang also imagine that most of the units selected directly from coal to gas, but due to the company's position in the rural county, yet through natural gas, natural gas subscribe to too much trouble, can only choose a fuel. But why he was told that the combustion of fuel daily cost is too high, very uneconomical, so Mr. Wang is now caught in a dilemma. Boiler factory shop Liu told us, choose oil or gas boiler can not simply decide based on how much the cost, and comprehensive own units' combined selection. As Mr. Wang this case, the need for oil-fired boilers and gas boilers have a clear understanding, and then decide what boiler according to the needs and environmental conditions of their own units, others listened to a few words do not make decisions hastily. Oil-fired boiler and gas boiler has a convenient, clean, efficient, low pollution features, their basic combustion efficiency can reach 90%, it is these advantages make them invincible on the road of environmental protection. Also fuel and gas-fired boilers there are differences, relatively gas-fired boiler furnace fuel, the fuel price is cheap, but the initial piping layout is more complex. In addition, there are regional differences in gas prices, we need to select a comprehensive assessment furnace units. Early oil-fired boiler installation is very simple, but the relatively high cost of combustion. We know the difference between fuel oil and gas boiler problems faced by the unit Mr. Wang is not difficult to solve. First, see if their unit is located within the fuel oil sales close, if not then abandon fuel furnace, because the long-distance transport will increase fuel costs. Secondly, since Mr. Wang in the rural county, from the county, then near the vicinity of the gas pipeline should be to subscribe to the relevant units to understand the situation after the gas pipeline, although this early spending more, but in the long run can save a lot of money as a unit . Or will choose oil-fired boiler gas-fired boiler, the unit must be on their own and do an objective assessment of conditions in the vicinity, if they can not choose, you can also contact the boiler factory shop, professional customer service they believe will make the most appropriate recommendations for you.

Recently, in Jiaxing City in Zhejiang Province Nanhu District, officially launched a comprehensive investigation and action on gas qualified brown coal boilers and biomass boilers urban built-up areas, and actively promote the transformation of low nitrogen emission gas-fired boiler, Zhejiang Province, determined to win the Battle of the sky made own contribution.

According to the requirements of the investigation, the South Lake district towns, streets, parks within the jurisdiction of the respective gas boilers and biomass boilers urban area to take home from house to house visits Paimo way, the ecological environment Branch area combined with market regulators issuing a list a verification form inventory management. After the statistics were found in the region with gas boiler 35 units, built-up area of ​​biomass boiler Taiwan.

Meanwhile, Nanhu District will be in more than 500,000 cubic meters of natural gas consumption in the four on-site visits to enterprises as a pilot enterprise low nitrogen transformation operations boilers, ecological environment Branch area of ​​personnel, publicity reform provinces, municipalities and low nitrogen emissions on gas-fired boiler requirement that the premise of ensuring safety in production, natural gas boiler NOx emission after the transformation shall not exceed 50 mg / cubic meter, and listened carefully to the enterprise raised about the difficulties of combustion gas boiler low nitrogen transformation exists.

To speed up the investigation and major renovation large boilers, Nanhu District definite time node, before the end of 2019 business model will complete the transformation of low nitrogen gas boiler, at the same time, the city built-up area of ​​biomass boilers implement ultra-low emissions transformation. Nanhu District will adhere to routine inspections and investigation focused on the combination of concentration and control checks and unannounced visits to combine law enforcement when combined with the daily supervision and wrong, and the law enforcement inspection report from the masses combine to ensure long-term monitoring of boiler regulation implemented.

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