Biomass boiler
A biomass boiler and furnace door technology, which is applied to the transportation of non-flammable liquid/gas, combustion methods, combustion equipment, etc., can solve the problem of short residence time of combustible suspended particles, insufficient air mixing in the furnace, and increased excess air coefficient etc., to achieve the effects of reducing the heat loss of incomplete combustion of solids, benefiting environmental protection, and improving fullness
Active Publication Date: 2015-05-20
嘉兴市特种设备检验检测院 +1
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Problems solved by technology
After switching to biomass fuel, due to the change in the combustion characteristics of the fuel, if the original primary air is still used, it is easy to cause insufficient mixing of the air flow in the furnace, and the high-temperature flue gas is concentrated at the rear arch, making it difficult for the new fuel to catch fire and flammable suspended particles. The residence time in the furnace is also short, and it cannot be fully burned, and the excess air coefficient increases, black smoke appears, and thermal efficiency decreases and other adverse phenomena.
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[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] figure 1 It is a schematic structural diagram of a biomass boiler furnace body according to an embodiment of the present invention. see figure 1 , The biomass boiler provided in this embodiment includes a furnace body, the furnace body includes a front arch 1, a rear arch 2, a left furnace door 3 and a right furnace door 4 and the furnace formed therefrom, the front arch 1, the rear arch 2 1. Secondary tuyere 11, tuyere 21, tuyere 31, and tuyere 41 are respectively set above the left furnace door 3 and right side furnace door 4, and secondary air nozzles 12, secondary air Nozzle 22, secondary air nozzle 32, and secondary air nozzle 42, these secondary air nozzles supply air through the secondary air pipe 5, and the secondary air pipe ext...
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The invention discloses a biomass boiler which comprises a boiler body. The boiler body comprises a front arch, a rear arch, a left-side boiler door, a right-side boiler door and a hearth, the hearth is formed by the left-side boiler door and the right-side boiler door, secondary air openings are arranged on the front arch, the rear arch, the upper side of the left-side boiler door and the upper side of the right-side boiler door respectively, secondary air nozzles are arranged in the various secondary air openings and supply air via secondary air pipes, the secondary air nozzles in the secondary air openings arranged on the front arch are vertically staggered with the secondary air nozzles in the secondary air openings arranged on the rear arch, and the secondary air nozzle in the secondary air opening arranged on the upper side of the left-side boiler door is staggered with the secondary air nozzle in the secondary air opening arranged on the upper side of the right-side boiler door in the front-back direction. The biomass boiler has the advantages that biomass fuel can be sufficiently combusted, and accordingly the heat efficiency of the biomass boiler is effectively improved.
Description
technical field [0001] The invention relates to a biomass boiler, in particular to a biomass boiler with a secondary tuyere. Background technique [0002] Biomass energy is an ideal renewable and clean energy. The National Development and Reform Commission's "Renewable Energy Medium and Long-term Development Plan" proposed the development goals and tasks of renewable energy from 2010 to 2020, and established the status of biomass fuel as a modern clean energy. However, the late development of biomass combustion in my country has become a bottleneck in the promotion and application of biomass fuels, and the development of high-efficiency and clean biomass fuel boilers has become an inevitable requirement. [0003] Commonly used industrial coal-fired boilers, due to the good combustion characteristics of coal, most of the furnace body can fully burn the coal with primary air, and the fuel utilization rate is high. After switching to biomass fuel, due to the change in the combu...
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IPC IPC(8): F23L9/02
Inventor 石斌祝新伟沈美华
Owner 嘉兴市特种设备检验检测院