48Ton h gas boilers
How to put ordinary gas 48ton h boilers boiler emissions become low nitrogen boiler is an important cause of air pollution in order to reduce pollution of the boiler, in the country minus the cancellation of coal coal have done a lot of work, which significantly reduces the solid boiler soot emissions and sulfur dioxide emissions of polluting gases. But only coal-fired boilers will be replaced by gas-fired boilers, boiler did not reduce emissions of nitrogen oxides, so the boiler with a new task becomes low nitrogen boiler boiler also became current. In the end what is low nitrogen boiler? In many areas, there is no mandatory use of low nitrogen boiler regulations, and in Beijing, mandatory use of low nitrogen requirements of the boiler has been formally introduced in April 1 this year, the existing boiler will perform the following 80mg standard, the new boiler will perform the following criteria 30mg, 80mg and standard criteria will gradually be replaced by 30mg of the boiler, and therefore in Beijing, boiler NOx emissions less than 30mg in order to become a low-nitrogen boiler. In Henan, the new gas-fired boiler will also perform the following criteria 30mg of nitrogen oxides, we can safely predict that the future low nitrogen boiler will be large-scale promotion. At this stage, a lot of nitrogen oxide emissions from gas-fired boiler in 150mg or less, which is far unable to meet the standard low-nitrogen boiler. Ordinary means into a low nitrogen gas boiler with a boiler or low nitrogen transformation replace the original boiler is condensed into nitrogen oxides emissions below 30mg (formula) boiler. Nitrogen mainly low boiler transformation replace Burner, mainly in the following ways: 1, flue gas recirculation transformation (Ultra Low NOx) is the use of combustion air head, the part of the combustion fumes sucked back into burner, and combustion air mixture. Since the flue gas recirculation, the combustion fumes a large heat capacity, the combustion temperature is lowered, the NOx reduction. Another recirculation burner itself is directly recycled into the part of the fumes inside the burner and to the combustion process, the burner has such a suppression effect of nitric oxide and the double energy. 2, the premix burner (combustion surface) technology premix gas burner, the gas and air are thoroughly pre-mixed prior to entering the combustion chamber, so that more complete combustion, improve the combustion efficiency and reduce harmful emissions, but also can reduce the space requirements of the combustion chamber, is currently the most advanced of a gas combustion technology. Due to the low NOx combustion boiler renovation and diverse, sophisticated technology, in order to ensure the smooth implementation of the transformation, effectively preventing security risks, prevent accidents, analysis and appraisal by experts, comprehensive security, environmental factors, Beijing and the Beijing Municipal Environmental Quality and Technical Supervision protection Bureau jointly issued a notice :( a) for 7.0mw (evaporation 10t / h) or more in the boiler is not recommended transformation of the way premixed combustion. (B) to the central back-fired boilers, the transformation is not recommended way to replace the burner. (C) For boilers, does not recommend the use of direct transformation of the way the transformation of the burner. Therefore, a low nitrogen transformation process boiler, more often, is a direct replacement for the original gas boiler low nitrogen boiler.
Four coal-fired 48ton h boilerss precautions to meet a variety of fossil fuels and natural gas sectors of production, often require boiler, the general common is to transform into a coal-fired furnace gas-fired boiler, to change the high fuel costs of coal on the environment cause serious pollution problems, specific issues unique boiler is not a small project, you need to pay attention to a good close links with each transformation in order to avoid failure of transformation, on boiler should be noted that we have to understand the following description. 1, the original boiler demolition work; boiler before carrying out the original host and auxiliary boilers need to be demolished, concrete demolition work carried out by professional staff, in order to more quickly complete the demolition work with but also to prevent the demolition process in the event of any accident; 2, note that pressure capacity of the boiler; small boiler into the gas by the coal-fired, also changed the original negative and positive pressure combustion burner, the process you need to pay special attention throughout the furnace wall the structure and sealing, the sealing function, it might cause the boiler after the transformation could not withstand the pressure and accidents; 3, furnace renovation precautions; when in many cases will change the gas burner, because the fuel mist of poor or incomplete combustion of the fuel gas remaining in the furnace a little mistake will cause fire or explosion, it is carried out after completion of the transformation for an explosion vent installed in an appropriate position to prevent the explosion, while additional ignition flame protection means after the boiler guarantee safe operation; 4, after the transformation of the test; after the completion of high-quality boiler transformation, but also the need for reuse Sophisticated testing to confirm their safety, commonly used test method is boiler pressure after the transformation of high-pressure test, and finally pass a test meet the standard may be considered completed after the entire transformation boilers. Caution visible through major transformation over the course of gas boilers, boiler reconstruction requires not only technical but also need to meet the relevant standards in order to ensure more successful boiler and can be smoothly carried out using, of course, in the transformation of the former users need to analyze the structure of the entire boiler study, confirming boiler renovation project can be re-introduced in order to avoid unnecessary waste.
Coal-fired 48ton h boilers not only seriously polluted air, which produces a large amount of waste water sludge can also cause serious water pollution and soil contamination. To protect the city of Tongren green water blue sky, since 2014, led by the city of Tongren City, Guizhou Bureau of Quality Supervision, of 10 steam tons / hour within built-up areas and Tongren City High-tech Zone, Economic Development Zone, Tai Lung range and below, in Guizhou tobacco industry limited liability company Tongren cigarette factory, Tongren City, drug rehabilitation centers, Tongren Wantong construction and development Co., Ltd. and other 36 enterprises of coal-fired boilers to carry out an intensive diagnostic investigation. One by one on the ground to verify the registration, and the companies signed an undertaking to ban coal-fired boilers eliminated; to effectively reduce the burden on enterprises, according to the spirit of the document, to take the initiative within the time limit or eliminate the use of coal-fired boiler unit to switch to clean energy, the after review and acceptance Municipal Environmental Protection Bureau, according to the amount of coal-fired boilers hour evaporation reward, award criteria tons of steam per 30,000 yuan subsidy.
Up to now, the city of Tongren out of 36 coal-fired boiler units, a total of 43.051 tons of steam, an award subsidies 1,291,530 yuan, so far, the city of Tongren jurisdictions total phase-out of all coal-fired boilers, and lay a good foundation for the creation of ecological civilization demonstration area.
What 48ton h boilers need for attention? Now oil, fuel, natural gas is a very scarce resource, when used in mining will be accompanied by a series of pollution problems, the face of this situation, boiler has become an urgent need to solve the problem, you know boiler and a large, there are dangerous equipment, so the transformation process we need to pay attention to some problems to be able to make it to transform all aspects of security smoothly, Here we give details of the content of transformation should be noted: 1, pay attention to dismantle the step of performing boiler prior to the transformation, to dismantle its main and auxiliary engines, but how demolition, operators need to advance the development of a detailed demolition plan according to the boiler case, then one by one followed by removal of clear indicators based on the removal step, not indiscriminate demolition otherwise it will cause safety accidents; 2, pay attention to the transformation of the furnace to know a lot of focus on the steps of the boiler furnace to transform all around, the general professional boiler when the company will be re-engineered to the furnace pouring new furnace, replace the old furnace, but also so that the original After the furnace arch tube can not have been affected by high temperature burning, the flame away from the center point, this will allow the furnace to become more durable; 3, do not forget a lot of people think it is testing everything will be fine in the boiler after the completion of renovation work, in actual fact, but also to test work after the transformation of the boiler, the boiler body to hydrostatic pressure test point five times. If the last test pass, then, to complete the delivery. The average person will ignore, I hope we can notice this; when the boiler, hope everyone can have some knowledge of three of its top hope in the transformation may be noted that the above-mentioned problems, avoid errors caused by safety problems , if you are looking for a trustworthy company's boiler, then you can consult a few good brands of the company, then let the company to own the corresponding boiler rehabilitation programs, in order to examine the strength of the company's transformation.