CN104266225B - Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing - Google Patents
Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing Download PDFInfo
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- CN104266225B CN104266225B CN201410467276.0A CN201410467276A CN104266225B CN 104266225 B CN104266225 B CN 104266225B CN 201410467276 A CN201410467276 A CN 201410467276A CN 104266225 B CN104266225 B CN 104266225B
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Abstract
The generating plant pulverized coal boiler cold state spark of the present invention and the micro oil ignition system of low-load combustion-stabilizing, including coal burner, fuel oil pressure-stabilizing tank, oil firing cylinder, oil gun, burning torch, combustion fan, oxygen tank and combustion air pipeline；Oil firing cylinder inclination angle is oblique to be fixed on coal burner, and oil gun and burning torch are arranged in oil firing cylinder, and oil gun is connected with fuel oil pressure-stabilizing tank by pipeline；Combustion fan is connected with oil firing cylinder by combustion air pipeline, and oxygen tank outlet conduit is connected on combustion air pipeline；Flame detecting probe is installed on coal burner.Invention enhances atomized fuel combustion efficiency in oil firing cylinder, solve the problem that the burning of current micro oil ignition system ignition process intermediate fuel oil is insufficient, coal dust burn-off rate is low.
Description
Technical field
Patent of the present invention belongs to heat power station coal-burning boiler field, relates to a kind of generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing.
Background technology
The recoverable reserves per capita of CNPC is only the 8% of world's average.2.6 hundred million tons of crude oil of Consumption of China in 2003, including net importation 90,000,000 tons, the consumption of current China's oil is up to 47.3% to external interdependency.Predict according to International Energy Agency (IEA): in China's the year two thousand twenty primary energy consumption, oil is 500,000,000 tons, self-produced 100,000,000 tons of China, needs import 400,000,000 tons, accounts for the 25% of volume of world trade in 1998.The end of the year in 2013, whole nation capacity of installed generator about 12.3 hundred million kilowatts, wherein thermoelectricity 8.6 hundred million kilowatts, account for 69.9%, rough estimates amount to oil consumption about 30,000,000 tons, wherein boiler ignition start and stable combustion oil about 14,250,000 tons, along with putting into operation successively of new unit, igniting and stable combustion oil will continue quickly to increase.It addition, along with the swift and violent growth of international energy demand, crude oil price raises up rapidly, excavate coal unit fuel-economizing potentiality, the energy-saving and cost-reducing task of top priority having become current China fired power generating unit.Ignition of the boiler currently mainly has the several ways such as the big grease gun igniting of tradition, plasma ignition, tradition tiny-oil ignition.Tradition is big, and oil gun oil consumption is huge the most gradually eliminates；Plasma ignition Suitability of Coals is poor, investment cost height can not be widely popularized；Tradition tiny-oil ignition coal adaptability is relatively wide, and novel igniting technology with less oil develops on the basis of tradition igniting technology with less oil.With simple throw oil drop burning coal powder compared with, in combustion air, oxygenation combustion-supporting effect in terms of coal adaptability, coal dust firing effect and coal dust burn-off rate, environmental protection is more prominent, oil-saving effect more preferably, have a extensive future.
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, provide a kind of generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing, to strengthen atomized fuel combustion efficiency in oil firing cylinder, solve the problem that the burning of current micro oil ignition system ignition process intermediate fuel oil is insufficient, coal dust burn-off rate is low.
The present invention is achieved through the following technical solutions:
The generating plant pulverized coal boiler cold state spark of the present invention and the micro oil ignition system of low-load combustion-stabilizing, it is characterised in that: include coal burner, fuel oil pressure-stabilizing tank, oil firing cylinder, oil gun, burning torch, combustion fan, oxygen tank and combustion air pipeline；Oil firing cylinder inclination angle is oblique to be fixed on coal burner, and oil gun and burning torch are arranged in oil firing cylinder, and oil gun is connected with fuel oil pressure-stabilizing tank by pipeline；Combustion fan is connected with oil firing cylinder by combustion air pipeline, and oxygen tank outlet conduit is connected on combustion air pipeline；Flame detecting probe is installed on coal burner.
Oil firing cylinder inclination angle is diagonally disposed on coal burner, is connected with coal burner by welding, and setting angle for axially becoming 60～75 ° of angles with coal burner.
Flame detecting probe is installed on coal burner, and setting angle for axially becoming 60～75 ° of angles with coal burner.
The generating plant pulverized coal boiler cold state spark of the present invention and the micro oil ignition system of low-load combustion-stabilizing, be additionally provided with and control the on-site control that whole system operation runs.
Patent of the present invention provides the benefit that: this equipment is the large-scale thermal power station pulverized-coal fired boiler cold state spark for bituminous coal, meager coal and anthracite coal boiler design and the device of low-load combustion-stabilizing.1) appropriate pure oxygen is previously added in oil firing cylinder combustion air, improves oxygen concentration in combustion air, when igniting, flame rigidity is relatively strong, flame temperature is higher, fuel oil burn-off rate and combustion efficiency preferable.Advantage is provided for next step firing coal-dust.2) by adjusting some row parameters such as oxygen-supplying amount, Oil Gun, atomizing pressure, it is adapted to the combustion characteristics of Coal rank and improves the range of application of this technology.
Accompanying drawing explanation
Fig. 1 is system principle structural representation；
In figure: 1 coal burner, 2 fuel oil pressure-stabilizing tanks, 3 oil firing cylinders, 4 oil guns, 5 burning torches, 6 combustion fans, 7 oxygen tanks, 8 combustion-supporting airducts, 9 flame detecting probes, 10 on-site controls.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.
The generating plant pulverized coal boiler cold state spark of the present invention and the micro oil ignition system of low-load combustion-stabilizing, including coal burner 1, fuel oil pressure-stabilizing tank 2, oil firing cylinder 3, oil gun 4, burning torch 5, combustion fan 6, oxygen tank 7 and combustion air pipeline 8.
Coal burner 1 is arranged in secondary air box；Oil firing cylinder 3 inclination angle is diagonally disposed on coal burner 1, is connected with coal burner by welding, and setting angle for axially becoming 60～75 ° of angles with coal burner；Flame detecting probe 10 is installed on coal burner 1, and setting angle for axially becoming 60～75 ° of angles with coal burner；Fuel oil pressure-stabilizing tank 2 is arranged near oil firing cylinder 3, and fuel oil pressure-stabilizing tank is connected with oil gun 4 by pipeline, and oil gun 4 is arranged in oil firing cylinder 3；Burning torch 5 is axially mounted in oil firing cylinder 3, is connected with on-site control 9 by controlling cable, and on-site control 9 controls whole system operation and runs；Combustion fan 6 is arranged near oil firing cylinder 3, and combustion fan is connected with oil firing cylinder 3 by combustion air pipeline 8；Oxygen tank 7 oxygen supply pipeline is connected on combustion air pipeline 8.
During igniting, after fuel-oil atmozation, ignited rifle is lighted, and combustion air provides oxygen needed for oil firing, adds suitable pure oxygen and improve oxygen concentration in combustion air in combustion air, and oil burn-off rate improves, and flame rigidity strengthens provides good condition for coal powder ignition.
Claims (1)
1. generating plant pulverized coal boiler cold state spark and a micro oil ignition system for low-load combustion-stabilizing, is characterised by: include coal burner, fuel oil pressure-stabilizing tank, oil firing cylinder, oil gun, burning torch, combustion fan, oxygen tank and combustion air pipeline；Oil firing cylinder inclination angle is oblique to be fixed on coal burner, and oil gun and burning torch are arranged in oil firing cylinder, and oil gun is connected with fuel oil pressure-stabilizing tank by pipeline；Combustion fan is connected with oil firing cylinder by combustion air pipeline, and oxygen tank outlet conduit is connected on combustion air pipeline；Flame detecting probe is installed on coal burner；
Described micro oil ignition system, is additionally provided with and controls the on-site control that whole system operation runs；
Oil firing cylinder setting angle for axially becoming 60～75 ° of angles with coal burner；
Flame detecting probe setting angle for axially becoming 60～75 ° of angles with coal burner；
Appropriate pure oxygen is previously added in oil firing cylinder combustion air, during igniting, after fuel-oil atmozation, ignited rifle is lighted, and combustion air provides oxygen needed for oil firing, adds suitable pure oxygen and improve oxygen concentration in combustion air in combustion air, oil burn-off rate improves, and flame rigidity strengthens provides good condition for coal powder ignition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467276.0A CN104266225B (en) | 2014-09-15 | 2014-09-15 | Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410467276.0A CN104266225B (en) | 2014-09-15 | 2014-09-15 | Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing |
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| CN104266225A CN104266225A (en) | 2015-01-07 |
| CN104266225B true CN104266225B (en) | 2016-12-07 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2493843Y (en) * | 2001-08-27 | 2002-05-29 | 王爱生 | Ignition burner for coal boiler |
| CN1687648A (en) * | 2005-04-30 | 2005-10-26 | 傅宁娟 | Cold state ignition under tiny oil, and steady burning burner in ultra low load |
| CN2869610Y (en) * | 2006-01-25 | 2007-02-14 | 杭州意能电力技术有限公司 | Boiler oxygen-riched oil gun |
| CN201093488Y (en) * | 2007-09-06 | 2008-07-30 | 杜京武 | Horizontal shade type micro oil mass igniting powdered coal burner |
| EP2208931A1 (en) * | 2009-01-16 | 2010-07-21 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Pilot burner for air / gas mixture, operable with oxygen |
| CN202902269U (en) * | 2012-02-23 | 2013-04-24 | 向卫 | Abundant oxygen and tiny oil pulverized coal burner |
| JP2014001908A (en) * | 2012-06-20 | 2014-01-09 | Babcock-Hitachi Co Ltd | Solid fuel burner and oxygen burning device with solid fuel burner |
| CN204084456U (en) * | 2014-09-15 | 2015-01-07 | 山东英电节能科技有限公司 | The micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing |
-
2014
- 2014-09-15 CN CN201410467276.0A patent/CN104266225B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2493843Y (en) * | 2001-08-27 | 2002-05-29 | 王爱生 | Ignition burner for coal boiler |
| CN1687648A (en) * | 2005-04-30 | 2005-10-26 | 傅宁娟 | Cold state ignition under tiny oil, and steady burning burner in ultra low load |
| CN2869610Y (en) * | 2006-01-25 | 2007-02-14 | 杭州意能电力技术有限公司 | Boiler oxygen-riched oil gun |
| CN201093488Y (en) * | 2007-09-06 | 2008-07-30 | 杜京武 | Horizontal shade type micro oil mass igniting powdered coal burner |
| EP2208931A1 (en) * | 2009-01-16 | 2010-07-21 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Pilot burner for air / gas mixture, operable with oxygen |
| CN202902269U (en) * | 2012-02-23 | 2013-04-24 | 向卫 | Abundant oxygen and tiny oil pulverized coal burner |
| JP2014001908A (en) * | 2012-06-20 | 2014-01-09 | Babcock-Hitachi Co Ltd | Solid fuel burner and oxygen burning device with solid fuel burner |
| CN204084456U (en) * | 2014-09-15 | 2015-01-07 | 山东英电节能科技有限公司 | The micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing |
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| CN104266225A (en) | 2015-01-07 |
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