A boiler hot flue gas ignition device
An ignition device and hot flue gas technology, applied in combustion ignition, lighting and heating equipment, fluidized bed combustion equipment, etc., can solve the problems of prolonging ignition time and consuming air volume
Active Publication Date: 2018-02-02
NANJING INST OF TECH
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Problems solved by technology
[0003] For circulating fluidized bed boilers, the ignition device is an important part to ensure that the fuel can burn stably after entering the furnace chamber. In the existing design, laying a layer of ignition primer on the air distribution plate not only consumes too much air volume , and prolong the ignition time
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[0017] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0018] Such as figure 1 As shown, a boiler hot flue gas ignition device includes a sequentially connected oil storage tank 16, an oil filter 15, and an oil supply pump 14. The oil storage tank 16 is connected to the hot blast stove 3 through the oil supply pump 14, figure 1 Among them, a hand valve is provided between the oil supply pump 14 and the hot blast stove 3, which is convenient for manual control.
[0019] Described hot blast stove 3 is provided with manhole door 5 and peephole 1, and manhole door 5 is used for people's access and maintenance, and peephole 1 can directly observe the working status in hot blast stove 3. Wherein, the inlet...
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The invention discloses a boiler hot flue gas ignition device. The boiler hot flue gas ignition device comprises an oil storage tank, an oil filter, an oil supply pump and a hot-blast stove which are connected in sequence. The hot-blast stove is provided with a manhole door and a peephole, a hot-blast stove inlet is provided with an arc igniter and an oil burner. A hot-blast stove outlet is provided with a thermocouple, the hot-blast stove is connected with a uniform-pressure wind chamber through a pipe, the pipe is provided with an air flowmeter, and the top of the uniform-pressure wind chamber is provided with a circulating fluidized bed combustion chamber. A lower layer air-distributing plate and an upper layer air-distributing plate are sequentially arranged between the uniform-pressure wind chamber and the circulating fluidized bed combustion chamber, and the lower layer air-distributing plate is in a horizontal flat plate shape. Gaps D of the upper layer air-distributing plate and the lower layer air-distributing plate are increased progressively from the two sides of the upper layer air-distributing plate to the center, lower layer ignition bottom material layers are evenly disposed on the lower layer air-distributing plate, upper layer ignition bottom material layers are evenly disposed on the upper layer air-distributing plate, bottom material particles of the upper layer ignition bottom material layers are larger than bottom material particles of the lower layer ignition bottom material layers, and the circulating fluidized bed combustion chamber is provided with a temperature sensor. Duration of ignition is reduced.
Description
technical field [0001] The invention relates to a boiler hot flue gas ignition device. Background technique [0002] There are two main types of boilers used in power plants for power generation: pulverized coal boilers and circulating fluidized bed boilers. Among them, circulating fluidized bed boiler technology is a high-efficiency, low-pollution and clean combustion technology that has developed rapidly in the past ten years. [0003] For circulating fluidized bed boilers, the ignition device is an important part to ensure that the fuel can burn stably after entering the furnace chamber. In the existing design, laying a layer of ignition primer on the air distribution plate not only consumes too much air volume , and prolong the ignition time. Contents of the invention [0004] In view of the above problems, the present invention provides a boiler hot flue gas ignition device, which improves the existing structure, reduces the ignition time, and avoids consuming too mu...
Claims
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IPC IPC(8): F23C10/18F23Q13/00
CPCF23C10/18F23C2206/10F23Q13/00
Inventor 叶江明孙荣岳饶代阳陈晴
Owner NANJING INST OF TECH