With the continuous promotion of coordinated development of city clusters in key national regions, urbanization strategy and rural revitalization strategy, the degree of urbanization development in China has been gradually improved. In recent years, the scale of cities has been rapidly expanded, people's consumption level has been constantly improved, and garbage production has been increasing, and many cities have been surrounded by garbage.In the section of "accelerating the reform of ecological civilization system and building a beautiful China", the 19th National Congress of the Communist Party of China (CPC) listed the issue of garbage treatment as "prominent environmental problems", and clearly required "strengthening solid waste and garbage disposal", so as to form a space pattern, industrial structure, mode of production and way of life that can save resources and protect the environment.How to deal with waste reasonably and effectively has become the focus of environmental protection for the government and the public.At present, under the principle of waste disposal reduction, recycling and harmless, waste incineration power generation gradually shows great advantages and forms a competitive emerging industry, which has become an important development direction of waste disposal.
In order to achieve environmental protection and low nitrogen emission, gas boiler should consider from three aspects. First, confirm whether the furnace meets the needs of low nitrogen combustion from the heat load parameters of furnace volume and furnace size.Second, confirm the application of low nitrogen combustion technology from the perspective of burner and report the test results in actual use;Three related equipment matching to confirm its rationality from a combustion system, such as single and double fan parameters, flue gas recycling rate, smoke wind mixing way, the precipitation of condensate solution, cold air heating measures, FGR flame stability, FGR impact on the boiler thermal efficiency and so on, analyzed and equipment selection of boiler running safety, stability, the influence of load rate, especially the FGR flame stability of furnace vibration influence;Finally, the conclusion is drawn whether the selected boiler meets the requirement of low nitrogen environmental protection emission.
All-in-one structure is applied, and the mounting flange is articulated, so it is featured in simple structure, easy and quick operation and maintenance. It is especially applicable for the thermal oil furnace for asphalt heating, the drying drum of the movable mixing plant, the drying drum of the small-sized fixed asphalt mixing plant and other heating equipment under severe conditions; its power is 134kW~1,0714kW. This burner is suitable for various of fuels: light oil, oil mixture, heavy/residual oil, gas, oil/gas. Compressed air or steam is used as the atomizing medium of the fuel series burner; thus, only 2~5kg oil pump pressure is required. It is especially applicable for the site with complicated fuels.
Safe
Common language symbol, high accuracy intelligent control device, digital intelligent program controller, information feedback and remote transmitting, human-computer interface conversation, quick information reading and understanding barrier-free processing, anticorrosive and heat resistant burning front end, combined air valve, high and low pressure monitoring of EBICO form dual-core safe control.
Energy saving
Streamline arc design reduces wind resistance and consumption power of the whole machine largely; S-shaped turbocharger technology enhances anti-resistance ability, so as to adapt to various of hearth; the combination of combustion optimization and intelligent control makes sure approximately 100% combustion efficiency and saves plenty of fuel. The abstract analog frequency control can save up to 70% starting power, and about 40% starting power can be saved every year averagely. 1.5% O2 precise control technology improves energy efficiency largely
Environmental protection
EBICO patent technologies, including multiple air distribution, multiple gas distribution and central premixing technology, minimize NOx and CO emission. Circular oblique flow inlet air, frequency control design and broadband control technology (optional) reduce about 30% noise.
Intelligent
Intelligent program controller, digital manipulator, electronic load regulator, frequency regulator(optional),the supported external communication Modbus485 and Profibus-DP can upload controlled data, realize network communication and remote communication, and form accurate and intelligent central control of EBICO.
Compact size
It feautres compact streamline design,electrical device and control module skid-mounting, small size, sufficient output power, low electric power, easy malign-ance and installation.
Quiet
The newly developed wide air-intake muffler and S-shaped air supply system have greatly decr-eased the noise level during burner operation. By replacing the traditional external muffler, it is able to offer a quiet environment.
Maintenance
The ES series features very simple maintenance due to the design of a door on the top of burner’s body and control box respectively. The maintenance can be easily made by opening the door. Such fast and high-efficiency performance contributes to the experience during the design of EBICO integration module system.
Fuel more intelligent control system, adopt international famous brand PLC as the core controller, according to different fuels, the choice of different control procedures, to realize the automatic ignition, automatic flame-out protection system, automatic adjustment, automatic wind load and coal proportion adjustment of oil and gas, combustion fault automatic monitoring alarm, can implement chain and equipment protection, at the same time, the control system can also be used with equipment integration for an organic whole, to realize automatic equipment operation parameters setting and burner operation parameters matching, improve overall equipment automatic control effect.
From the perspective of heat transfer calculation, the measures to reduce the smoke exhaust temperature are analyzed from the following aspects: increasing the heat exchange surface, improving the heat exchange efficiency of the heating surface, improving the heat exchange temperature difference by using a lower temperature source, and reducing the influence of corrosion on the heat exchange efficiency.As gas boiler host first meet the low nitrogen flame furnace volume and size requirements, the second host of convection heating surface is a main export in order to reduce the smoke temperature, general control in 150 ~ 250 ° C, in order to avoid the smoke temperature increases along with the flue design difficulty of heat preservation, high smoking temperature is too low will cause corrosion in furnace convection heating surface forming wall condensation, therefore, furnace domestic demand to design proper heating surface, the physical dimension more representative chamber size.Increasing the heat exchange surface should mainly consider increasing the heat exchange area of the equipment in the rear of the boiler, which is more favorable for rapidly reducing the exhaust temperature.The second is to have a lower inlet water temperature can be used for heat exchange temperature difference characteristics;Third, corrosion resistant materials can be used to improve its service life.The new structure of efficient heat exchange mainly adopts the form of staggered tube arrangement, efficient heat exchange finned tube, plate heat exchanger, etc., to increase the flue gas disturbance and contact surface, reduce the heat resistance of flue gas stratification, and improve the heat exchange efficiency of medium and flue gas.
EBICO burner products through the investigation, design, testing, finished products, certification, feedback, innovation, guidance eight steps, the safety, energy saving, environmental protection of EBICO series products deductive incisively and vividly, this kind of demanding requirements we are still continuing...
——Author：CC