CN104266225A - Cold-state ignition and low-load steady combustion tiny-oil ignition system for power plant pulverized coal boiler - Google Patents
Cold-state ignition and low-load steady combustion tiny-oil ignition system for power plant pulverized coal boiler Download PDFInfo
- Publication number
- CN104266225A CN104266225A CN201410467276.0A CN201410467276A CN104266225A CN 104266225 A CN104266225 A CN 104266225A CN 201410467276 A CN201410467276 A CN 201410467276A CN 104266225 A CN104266225 A CN 104266225A
- Authority
- CN
- China
- Prior art keywords
- oil
- combustion
- pulverized coal
- low
- ignition system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a cold-state ignition and low-load steady combustion tiny-oil ignition system for a power plant pulverized coal boiler. The cold-state ignition and low-load steady combustion tiny-oil ignition system for the power plant pulverized coal boiler comprises a pulverized coal burner, a fuel surge tank, an oil burning cylinder, an oil gun, a burning torch, a combustion fan, an oxygen tank and a combustion air pipeline; the oil burning cylinder is fixed on the pulverized coal burner obliquely; the oil guan and the burning torch are installed inside the oil burning cylinder; the oil gun is connected with the fuel surge tank through a pipeline; the combustion fan is connected with the oil burning cylinder through the combustion air pipeline; an outlet pipeline of the oxygen tank is connected to the combustion air pipeline; a flame detecting probe is installed on the pulverized coal burner. The cold-state ignition and low-load steady combustion tiny-oil ignition system for the power plant pulverized coal boiler intensifies the atomizing fuel combustion effect inside the oil burning cylinder and solves the problem that the existing tiny-oil ignition system is not sufficient in fuel combustion and low in pulverized coal burn-off rate during an ignition process.
Description
Technical field
Patent of the present invention belongs to heat power station coal-burning boiler field, relates to the micro oil ignition system of a kind of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing.
Background technology
The recoverable reserves per capita of CNPC is only 8% of world's average.Consumption of China in 2003 2.6 hundred million tons of crude oil, comprising net importation 9,000 ten thousand tons, current China's oil is consumed external interdependency up to 47.3%.Predict according to International Energy Agency (IEA): in Chinese the year two thousand twenty primary energy consumption, oil is 500,000,000 tons, and self-produced 100,000,000 tons of China, needs import 400,000,000 tons, account for 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 3,000 ten thousand tons, wherein boiler ignition start and stable combustion oil about 1,425 ten thousand tons, along with putting into operation successively of new unit, igniting and stable combustion oil will continue to increase fast.In addition, along with the swift and violent growth of international energy demand, crude oil price raises up rapidly, excavates 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 mainly contains several modes such as tradition large grease gun igniting, plasma ignition, traditional tiny-oil ignition at present.Tradition is large, and oil gun oil consumption is huge eliminates gradually; Plasma ignition Suitability of Coals is poor, investment cost is high can not extensively promote; Tradition tiny-oil ignition coal adaptability is relatively wide, and novel igniting technology with less oil develops on traditional igniting technology with less oil basis.With throws merely compared with oil drop burning coal powder, in combustion air more outstanding, the oil-saving effect of oxygenation combustion-supporting effect in coal adaptability, coal dust firing effect and coal dust burn-off rate, environmental protection better, have a extensive future.
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, provide the micro oil ignition system of a kind of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing, to strengthen the combustion efficiency of atomized fuel 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 micro oil ignition system of generating plant pulverized coal boiler cold state spark of the present invention and low-load combustion-stabilizing, is characterized in that: comprise 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 installed by coal burner.
Oil firing cylinder inclination angle is oblique to be arranged on coal burner, is connected with coal burner by welding, and setting angle is axially become 60 ~ 75 ° of angles with coal burner.
Flame detecting probe is installed on coal burner, and setting angle is axially become 60 ~ 75 ° of angles with coal burner.
The micro oil ignition system of generating plant pulverized coal boiler cold state spark of the present invention and low-load combustion-stabilizing, is also provided with the on-site control controlling whole system operation and run.
The beneficial effect of patent of the present invention is: this equipment is the device of large-scale thermal power station pulverized-coal fired boiler cold state spark for bituminous coal, meager coal and anthracite coal boiler design and low-load combustion-stabilizing.1) appropriate pure oxygen is added in advance in oil firing cylinder combustion air, improves oxygen concentration in combustion air, flame rigidity is comparatively strong when lighting a fire, flame temperature is higher, fuel oil burn-off rate and combustion efficiency better.For next step firing coal-dust provides advantage.2) by some row parameters such as adjustment oxygen-supplying amount, Oil Gun, atomizing pressures, the combustion characteristics of Coal rank can be adapted to and improve 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 micro oil ignition system of generating plant pulverized coal boiler cold state spark of the present invention and low-load combustion-stabilizing, comprises 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 oblique to be arranged on coal burner 1, is connected with coal burner by welding, and setting angle is axially become 60 ~ 75 ° of angles with coal burner; Flame detecting probe 10 is installed on coal burner 1, and setting angle is axially become 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 arranged in oil firing cylinder 3, is connected with on-site control 9 by control cables, 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.
Lighted by burning torch after fuel-oil atmozation during igniting, combustion air provides oxygen needed for oil firing, adds suitable pure oxygen and improve oxygen concentration in combustion air in combustion air, and oily burn-off rate improves, and flame rigidity strengthens as coal powder ignition provides good condition.
Claims (4)
1. a micro oil ignition system for generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing, is characterised in that: comprise 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 installed by coal burner.
2. the micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing according to claim 1, is characterized in that: oil firing cylinder setting angle is for axially becoming 60 ~ 75 ° of angles with coal burner.
3. the micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing according to claim 1 or 2, is characterized in that: be also provided with the on-site control controlling whole system operation and run.
4. the micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing according to claim 1 or 2, is characterized in that: flame detecting probe setting angle is for axially becoming 60 ~ 75 ° of angles with coal burner.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104266225A true CN104266225A (en) | 2015-01-07 |
| CN104266225B CN104266225B (en) | 2016-12-07 |
Family
ID=52157776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410467276.0A Active 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104266225B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104266225B (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104154519B (en) | A kind of alcohol-group fuel steam boiler | |
| CN102269424B (en) | Oxygen enrichment plasma oil-free ignition and stable combustion method | |
| CN204084456U (en) | The micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing | |
| CN202229231U (en) | Detachable vertical coal powder ignition device with cooling protection function | |
| CN103836620A (en) | Oxygen-enriched micro-oil fractional combustion device | |
| CN204042838U (en) | A kind of alcohol-group fuel steam boiler | |
| CN1793737A (en) | Direct flow oil-saving burner faulty coal for combustion | |
| CN104266225B (en) | Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing | |
| CN201844417U (en) | Rich oxygen ignition device for pulverized coal fired boiler | |
| CN202938289U (en) | Fuel-saving ignition device of circulating fluidized bed boiler | |
| CN101592337A (en) | Internal combustion ignition pulverized coal burner | |
| CN201335376Y (en) | Tiny-oil ignition maintenance-free burner | |
| CN204141574U (en) | Multistage oxygenation mode is adopted to light a fire and the coal burner of low-load combustion-stabilizing | |
| CN202792005U (en) | Pulverized coal boiler weak breath ignition device | |
| CN203784939U (en) | Oxygen-enriched micro oil staged combustion device | |
| CN2886352Y (en) | Oilless combustion-supporting ultra-low load operating burner for coal powder boiler | |
| CN202303361U (en) | United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device | |
| CN202927882U (en) | Cold state ignition device for low-emission boiler | |
| CN105716076A (en) | Electrolysis oxy-hydrogen gas pulverized coal igniting burner | |
| CN102322634A (en) | Pulverized coal combustor capable of being ignited with little gasified oil | |
| CN206944145U (en) | A kind of oxygen-enriched few-oil ignition system of boiler | |
| CN201106844Y (en) | Horizontal darkandlight micro-oil firing pulverized coal burner | |
| CN205447824U (en) | Gas boiler ignition mechanism | |
| CN202757119U (en) | Ignition device for fan-grinder milling boiler | |
| CN205048494U (en) | Alcohol group gasification combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161012 Address after: 250000 Shandong city of Ji'nan province high tech Zone Shun Road No. 109 Department of building 302-1 Applicant after: Shandong Environmental Protection Technology Co., Ltd. Address before: 250011 Shandong city of Ji'nan province high tech Zone Shun Road No. 1 Building No. 5, Qilu Software Park (Business Plaza E block) Applicant before: SHANDONG ECO-POWER ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |