A power station circulating fluidized bed boiler
A circulating fluidized bed and boiler technology, used in fluidized bed combustion equipment, fuels burned in a molten state, combustion types, etc., can solve the problems of high exhaust gas temperature, large sensible heat loss, and unused latent heat. The effect of reducing emissions, improving thermal efficiency, and reducing fuel consumption
Active Publication Date: 2019-04-05
合肥裕朗机电科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a circulating fluidized bed boiler for a power station to solve the problem that the gas-fired boiler exhaust smoke contains up to 18% water vapor, which contains a large amount of latent heat that has not been utilized. The temperature is high, the loss of sensible heat is large, and the natural gas still emits pollutants such as nitrogen oxides and a small amount of sulfur dioxide after combustion
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] see figure 1 and figure 2 , the present invention provides a technical solution:
[0018] A circulating fluidized bed boiler for a power station, comprising a boiler platform 1, an air filter 8 and a return valve 19, a low slag cooler 27 is provided on the left upper surface of the boiler platform 1, and a low slag cooler 27 is provided on the right upper surface of the boiler platform 1 A water-cooled air chamber 20, the upper surface ...
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The invention discloses a power station circulating fluidized bed boiler. The power station circulating fluidized bed boiler comprises a boiler pedestal, an air filter and a material return valve. A low slag cooler is arranged on the upper surface of the left side of the boiler pedestal, a water-cooling air chamber is arranged on the upper surface of the right side of the boiler pedestal, and a hearth is arranged on the upper surface of the water-cooling air chamber. A fuel tank is arranged at the position, close to the upper side of the low slag cooler, of the external surface of the lower side of the hearth. A lime bin is arranged at the position, close to the upper side of the water-cooling air chamber, of the left side of the fuel tank. The right side of the hearth is connected with an air filtering tank and an economizer, a circulating loop is set through a draught fan, waste heat in flue gas and latent heat of condensation of water vapor are fully recovered, meanwhile the air filter in the power station circulating fluidized bed boiler absorbs nitrogen oxides, sulfur dioxide and other pollutants in the flue gas, pollutant emission is reduced, heat efficiency is promoted, energy in high-temperature flue gas is recovered, fuel consumption is reduced, economic benefits are quite obvious, and the power station circulating fluidized bed boiler has an environmental protection significance.
Description
technical field [0001] The invention belongs to the technical field of power station boilers, and in particular relates to a power station circulating fluidized bed boiler. Background technique [0002] Circulating fluidized bed boiler technology is a high-efficiency, low-pollution and clean combustion technology that has developed rapidly in the past ten years. Internationally, this technology has been widely used commercially in the fields of power station boilers, industrial boilers and waste treatment and utilization, and is developing towards large-scale circulating fluidized bed boilers with a scale of hundreds of thousands of kilowatts; domestic research and development in this area And applications are also gradually emerging, and hundreds of circulating fluidized bed boilers have been put into operation or are being manufactured. [0003] Gas-fired boiler exhaust contains up to 18% water vapor, which contains a large amount of latent heat that has not been utilized...
Claims
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IPC IPC(8): F23C10/00F23C10/18
CPCF23C10/00F23C10/18
Inventor 岑玲
Owner 合肥裕朗机电科技有限公司