Oxygen-enriched igniting and firing stabilizer without oil

A technology of oil-free ignition and stable combustion device, which is applied in the directions of combustion ignition, incandescent ignition, and ignition through guide flares, etc., can solve the problems of poor coal adaptability, low air heat capacity, cathode and anode burning damage, etc., to prevent safety accidents, The effect of high combustion temperature and high reliability

Inactive Publication Date: 2008-09-03
王福林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its shortcoming is that, as a result of high power and tens of thousands of degrees of high temperature, even if water cooling measures are taken, the cathode and anode will be severely burned, the life of the tungsten cathode is only tens of hours, and the life of the anode is only hundreds of hours, and the cathode and anode need to be replaced frequently. It is quite troublesome, once it fails, it will affect the safe and reliable operation of power station boilers and industrial furnaces, and consume more strategic materials such as precious tungsten
Its disadvantage is that the temperature of air heating itself is limited by the allowable wall temperature of the metal, and the heat capacity of the air itself is low. The worse the coal quality and the higher the water content, the greater the heat capacity, and the high-temperature air may not be able to dissipate the coal powder at any time. Heating to the ignition point and igniting it, the probability of ignition failure is high
The application is greatly affected by coal quality, and the adaptability of coal types is poor

Method used

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  • Oxygen-enriched igniting and firing stabilizer without oil
  • Oxygen-enriched igniting and firing stabilizer without oil
  • Oxygen-enriched igniting and firing stabilizer without oil

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Embodiment 1

[0030] Such as figure 1 As shown, an oxygen-enriched oil-free ignition and stable combustion device of the present invention is composed of an ignition and stable combustion nozzle 1 and a connecting control pipeline 2. The ignition and stable combustion nozzle is connected with an oxygen source 3 through a control pipeline, and the oxygen source can be Oxygen is produced from bottled industrial oxygen or from an air separation oxygen generator.

[0031] Such as Figure 3-1 , 3-2 , 3-3, 3-4, and 3-5, the outlet side of the ignition and stable combustion nozzle of the present invention has a round or rectangular appearance, including a primary air inlet 1-1, a secondary air inlet 1-2, and an oxygen-enriched inlet 1 -3. The ignition and stable combustion nozzle consists of five layers of shells. The shells are separated by partitions 1-4, forming secondary air channels 1-5, previous air channels 1-6 and next air channels 1 from outside to inside. -7, the central ring secondar...

Embodiment 2

[0036] Such as figure 2 As shown, an oxygen-enriched oil-free ignition and stable combustion device of the present invention consists of an ignition and stable combustion nozzle 1, an oxygen-rich nozzle 4 in a stable combustion and reflow area of ​​the upper or lower coal powder nozzle adjacent to the ignition and stable combustion nozzle, and a connected control pipeline 2, the ignition stable combustion nozzle and the oxygen-rich nozzle in the stable combustion recirculation zone are connected to the oxygen source 3 through the control pipeline. The oxygen source can be bottled industrial oxygen or oxygen from an air separation oxygen generator.

[0037] Such as Figure 3-1 , 3-2 , 3-3, 3-4, and 3-5, the outlet side of the ignition and stable combustion nozzle of the present invention has a round or rectangular appearance, including a primary air inlet 1-1, a secondary air inlet 1-2, and an oxygen-enriched inlet 1 -3. The ignition and stable combustion nozzle consists of...

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Abstract

There is disclosed an oxygen-enriched oil-free ignition smooth combustion device, which consists of a ignition smooth combustion nozzle or smooth combustion recirculation region oxygen-enriched nozzle of the ignition smooth combustion nozzle and the adjacent upper or lower deck coal nozzle and a connection control pipeline.

Description

technical field [0001] The invention relates to an ignition and stable combustion device for igniting and burning pulverized coal in the energy utilization process of power station boilers, industrial furnaces, etc. Oil ignition and stable combustion device. Background technique [0002] At present, there are two technical methods that can be used as the ignition burner and the main burner at the same time: plasma oil-free ignition and stable combustion, and high-temperature air oil-free ignition and stable combustion. [0003] Plasma oil-free ignition and stable combustion device is composed of ignition combustion nozzle, cathode, anode, water cooling system, high-power power supply, etc. A high-power power supply of about 150-400KW is used to ignite a plasma arc with a temperature of tens of thousands of degrees, thereby realizing heating of pulverized coal, reliable ignition and stable combustion. It has many characteristics such as fast ignition, stability and reliabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23Q9/00F23Q7/02
CPCY02E20/34
Inventor 王福林
Owner 王福林
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