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Method and device for igniting boiler powder coal by using water high temperature electrolysis technology

A technology of high-temperature ionization and ignition device, applied in the combustion method, combustion ignition, incandescent ignition and other directions, can solve the problems of insufficient initial energy of pulverized coal, increased explosion danger of pulverized coal, long heating time of pulverized coal, etc., to improve reliability and performance. Usability, reduced installation costs, and the effect of reducing the chance of explosions

Inactive Publication Date: 2004-03-03
王满家 +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The main reason for the low combustion frequency is that the initial energy of pulverized coal combustion is insufficient, and the heating time of pulverized coal is too long
And the mixing of pulverized coal and oxygen is sufficient, and the combustion is too violent
[0008] Ignition with oxygen-containing gas will reduce the combustion frequency and increase the risk of coal dust explosion

Method used

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  • Method and device for igniting boiler powder coal by using water high temperature electrolysis technology
  • Method and device for igniting boiler powder coal by using water high temperature electrolysis technology
  • Method and device for igniting boiler powder coal by using water high temperature electrolysis technology

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Embodiment Construction

[0035] As shown in the figure, an ignition device for a pulverized coal boiler realized by using the fourth state characteristics of water, wherein:

[0036] 1. Structural main body of the ignition device

[0037] 2. Water vapor delivery pipeline

[0038] 3. Other pipelines

[0039] 4. Boiler oil gun pipe

[0040] 5. Hydroxide ion flame

[0041] 6. Oxygen-containing gas flame

[0042] 7. Pulverized coal flow

[0043] 8. Boiler burner primary air pulverized coal channel

[0044] 9. Plasma generator

[0045] 10. Plasma generator bracket

[0046] 11. Hydroxygen plasma chamber support

[0047] 12. Oxyhydrogen plasma chamber

[0048] 13. Energy conversion chamber

[0049] 14. Plasma arc

[0050] 15. Oxyhydrogen plasma injection port

[0051] 16. Cooling water jacket

[0052] The working process of this device is as follows:

[0053] The plasma arc 14 is generated by the plasma generating device 9, and the water vapor transported in from the steam pipe 2 in the energy co...

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Abstract

A method for igniting the powdered coal in boiler features that the plasma arc generated by plasma generator and the water steam are simultaneously delivered in an energy converting chamber for plasma ionizing to generate H2-O2 plasmas, and the high-energy H2-O2 plasmas are sprayed from igniter into powdered coal stream to generate flame and water, so igniting powdered coal and forming a stable burning kernel. Its apparatus is composed of igniter and the primary air and powdered coal channel.

Description

technical field [0001] The invention relates to an ignition method and device for a pulverized coal boiler. Background technique [0002] In a thermal power country, pulverized coal boiler is the main power generation. In the long-term operation, there is a problem that has not been solved well, that is, a large amount of fuel oil needs to be burned during the process of starting the furnace, combustion support, and stable combustion of the pulverized coal boiler. According to statistics, the value of fuel oil consumed in this area in the whole country is tens of billions of yuan every year. If coal can be used to replace this part of oil, the cost of burning coal is only 20% of that of burning oil based on the current prices of coal and oil. The benefits are very considerable. [0003] Coal is solid and will not volatilize at room temperature. Coal-fired boilers burn pulverized coal, which is a particle with a size of about 100 mesh. Although the coal powder is very fine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23Q7/00F23Q13/00F23Q13/02
Inventor 王满家黄继祥王屹东
Owner 王满家
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