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Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply

A plasma ignition and stable combustion device technology, which is applied in the direction of burners, burners, and combustion methods for burning powder fuels, can solve the problems of unsuccessful ignition and unstable combustion, and achieve improved power factor, stable operation, and safe work The effect of zone width

Active Publication Date: 2014-01-01
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical solution problem of the present invention is: overcome the deficiencies in the prior art, provide a kind of plasma ignition and stable combustion device of rectification power supply of IGBT transistor, adopt the pulverized coal burner of multi-stage concentration and staged combustion and parallel-flow arc plasma spray gun, Fundamentally solve the problems of frequent unsuccessful ignition and unstable combustion of traditional technology

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  • Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply
  • Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply
  • Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply

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Embodiment Construction

[0031] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] like figure 1 , 2 , 3, a kind of IGBT (insulated gate bipolar) transistor rectification power supply plasma ignition and stable combustion device of the present invention includes a collision type coal powder concentration staged combustion coal powder burner and a parallel flow arc plasma spray gun, wherein the collision type The pulverized coal concentration staged combustion pulverized coal burner includes primary air powder inlet 1, straight pipe section 2, conical pipe section 3, outer nozzle 4, collision concentration block 5, collision concentration ring 6, inner combustion chamber 7, outer combustion chamber 8, The disturbance block 9 of the inner combustion chamber, the rear disturbance block 10 of the outer combustion chamber, the front disturbance block 11 of the outer combustion chamber, the collision concentration ...

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Abstract

The invention discloses a plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply. The plasma ignition and combustion stabilization device for the IGBT rectification power supply comprises a collision type pulverized coal concentration fractional combustion pulverized coal burner and a plasma spray gun, wherein the plasma spray gun generates high-temperature flame at the temperature of about 4000DEG C to ignite pulverized coal in an inner-layer combustion chamber of the pulverized coal burner; heat released from the burning of the pulverized coal in the inner-layer combustion chamber then ignites pulverized coal in an outer-layer combustion chamber to realize the stable combustion of pulverized coal flame; the collision type pulverized coal concentration fractional combustion pulverized coal burner comprises a primary air dust inlet, a straight pipe section, a taper pipe section, an outer nozzle, a collision concentration block, a collision concentration ring, the inner-layer combustion chamber, the outer-layer combustion chamber, an inner-layer combustion chamber disturbance block, an outer-layer combustion chamber rear disturbance block and an outer-layer combustion chamber front disturbance block; and the plasma spray gun comprises a cathode, a magnetic field coil, a spiral air chamber, an anode, a nozzle and a gun body. The plasma ignition and combustion stabilization device for the IGBT rectification power supply is applied to the starting ignition and the combustion stabilization stage of a pulverized coal fired boiler to replace the traditional big oil gun ignition and combustion stabilization mode, coal is used for replacing oil, and therefore the purpose of saving cost is achieved.

Description

technical field [0001] The invention relates to a plasma ignition and stable combustion device for IGBT transistor rectification and power supply, which is mainly used in the cold state or hot state start ignition and low load stable combustion stage of pulverized coal boilers and in cement, ceramics and metallurgy, etc. The main energy industry can ignite pulverized coal of various coal types such as lignite, bituminous coal, lean coal, anthracite and mixed coal, and belongs to the field of thermal power technology. Background technique [0002] With the continuous increase of international and domestic fuel prices and the continuous expansion of electric power and heating units, the oil consumption of various pulverized coal boilers in the electric power, petrochemical and other industries has increased significantly for cold or hot start-up ignition and low-load stable combustion. At the same time, with the increase of oil consumption in various industries such as transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/00F23K3/02
Inventor 闫金山陈志伟陈峰吴久峰于德洋王庆朱兴营周法秦威
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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