CN2487965Y - Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique - Google Patents

Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique Download PDF

Info

Publication number
CN2487965Y
CN2487965Y CN 01201022 CN01201022U CN2487965Y CN 2487965 Y CN2487965 Y CN 2487965Y CN 01201022 CN01201022 CN 01201022 CN 01201022 U CN01201022 U CN 01201022U CN 2487965 Y CN2487965 Y CN 2487965Y
Authority
CN
China
Prior art keywords
powder
combustion barrel
pipe
deflector
stage
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.)
Expired - Lifetime
Application number
CN 01201022
Other languages
Chinese (zh)
Inventor
王爱生
纪书信
王雨蓬
王公林
唐宏
邵瑞虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yantai Longyuan Power Technology Co Ltd
Original Assignee
YANTAI DEVELOPMENT ZONE LONGYUAN ELECTRIC POWER COMBUSTION CONTROL ENGINEERING CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YANTAI DEVELOPMENT ZONE LONGYUAN ELECTRIC POWER COMBUSTION CONTROL ENGINEERING CO LTD filed Critical YANTAI DEVELOPMENT ZONE LONGYUAN ELECTRIC POWER COMBUSTION CONTROL ENGINEERING CO LTD
Priority to CN 01201022 priority Critical patent/CN2487965Y/en
Application granted granted Critical
Publication of CN2487965Y publication Critical patent/CN2487965Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Abstract

The utility model discloses a multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique which is characterized in that a one-time powder inlet pipe 17 is inserted with a first grade burning cylinder inlet pipe 15, a second grade burning cylinder inlet pipe 16 and a dense adjustable baffle 18; the outer walls of a high-temperature plasma pipe 13 and a first grade burning cylinder outer sleeve 8 are provided with baffles 14 and 19. A one-time powder baffle 10 is used to separate the one-time powder inlet pipe 17 and an overfire air inlet pipe 9; annular gaps which can introduce the overfire air are designed between a forth burning cylinder 2 and a third burning cylinder 4 and between the third burning cylinder and the second burning cylinder. The coal burner of the structure has the advantages of multi-stage burning, burner coking prevention, etc. The utility model can achieve non-oil or less-oil ignition matching with a plasma ignition device and other ignition resource. The utility model has great economic benefit and social benefit.

Description

Adopt the multifunction coal dust combustor of multistage axial powder feed and air film cooling technology
The utility model discloses a kind of multifunction coal dust combustor that adopts multistage axial powder feed and air film cooling technology, it has characteristics such as big, the noncoking of exerting oneself, efficiency of combustion height, flame rigidity are strong, the different coals of incendivity, particularly this burner and direct firing coal-dust start that the plasma ignition device of Industrial Boiler is supporting to have an ignition trigger, low-load combustion-stabilizing and do the main burner function.
The ignition trigger of traditional industry pulverized-coal fired boiler all adopts fuel mode to heat up, and a 999 year, generating plant pulverized coal boiler is planned to reach 3,200,000 tons with innage, amounts to nearly 10,000,000,000 yuan of RMB.State Planning Commission calls in " China's energy " white paper in 1997 once that " it is an important energy policy in conjunction with China's national situation that the technology of replace oil with coal and product are applied in research and development, encourages the whole society to carry out the work of replace oil with coal." for this reason, China and whole world relevant expert had once studied the problem that adopts the direct firing coal-dust of plasma technology since the eighties.Australia develops the bituminous coal plasma ignition device that adopts the nitrogen protection electrode; a large amount of basic research works was once done to this problem by the former Soviet Union; done fire trial in China Baoji and Shaoguan Power Plant respectively in 1996 and in 1998, but all do not started successfully.Great deal of experimental work was all done by units such as the Tsing-Hua University of China, Harbin Boiler Plant on this project.
Directly the plasma ignition device (ZL 99 2 48829X) of firing coal-dust startup station boiler adopts axial-flow type two-stage powder feeding burner to realize the non-oil ignition first time that coal-burning boiler starts on China's history 2000 on February 15, in Yantai power plant.But shortcomings such as the coking of this burner various degrees, ablation, function and burning coal are single, improvement expenses height, it is strong to fail to develop a kind of adaptability, and safe and reliable coal burner has influenced applying of plasma ignition device.
The purpose of this utility model provides a kind of multifunctional burner that adopts multistage axial powder feed and air film cooling technology, solved burner coking, ablate and have igniting, surely fire and do the function of main burner, improved the reliability and the economy of plasma ignition device widely.
The purpose of this utility model is achieved in that a kind of multifunction coal dust combustor that adopts multistage axial powder feed and air film cooling technology, it mainly by burner nozzle, level Four combustion barrel, wind powder pipe spare, primary wind and powder enter pipe, secondary wind enters pipe, compositions such as deflector, high-temperature plasma body canal, adjustable coal powder light-dark deflector.
Wherein, enter pipe 17 coal dusts that carry by wind and entered burner body in 18 minutes three the tunnel through adjustable coal powder light-dark deflector, at first 20% thick coal culm enters pipe 15 by the first-stage burning tube and enters first-stage burning tube 12 through first-stage burning tube deflector 14.Enter pipe 16 by second level combustion barrel and enter second level combustion barrel 6 through second level combustion barrel deflector 19, the coal dust of Third Road 20% enters third level combustion barrel 4 through primary wind and powder deflector 10 by third level combustion barrel coal dust passage 20.
Wherein, the secondary wind of secondary wind by wind powder pipe spare 7 enters 9 fens two-way of pipe and enters burner.One transportation work style is carried out the oxygenating burning after cooling off first-stage burning tube 12 outer walls by first-stage burning tube outer tube 8 upper entrances.Second transportation work style is divided two-way after by the cooling of 22 pairs of third level combustion barrel 4 outer walls of secondary air channel again, wherein one the tunnel enters and carries out oxygenating another road of burning in the fourth stage combustion barrel 2 and enter burner hearth after by secondary air channel 24 cooling fourth stage combustion barrels 2.
Wherein, immediately above-mentioned 20% thick coal culm is lighted when high-temperature plasma body canal 13 provides high-temperature plasma, this flame is further lighted 60% coal dust again, and all the other coal dusts of 20% are by the 20 as above torch mixed combustions together of third level combustion barrel coal dust passage.This part wind powder air-flow also plays the effect of cooling second level combustion barrel.
The utility model has the advantages that: employing is amplified ignition way step by step and has been improved exerting oneself of this burner greatly and reduced energy consumption, and this burner has possessed the condition of doing main burner again except that having igniting and steady combustion function; Adopted that secondary air separating is other has realized that to first-stage burning tube 12, second level combustion barrel 6, third level combustion barrel 4, fourth stage combustion barrel 2 air film cooling makes the combustion barrel wall temperature avoid coking below all reducing to the ash fusion point temperature; Strengthened the rigidity of burning and having improved flame by the oxygenating of secondary wind in oxygenating of in third level combustion barrel 4, flowing and the fourth stage combustion barrel 2 by thin powdered coal;
Enter pipe 15 coal dust by the first-stage burning tube and make radially through first-stage burning tube deflector that powder feeding becomes axial powder feed, and impartial in the pipe annular pressure realized the wind powder bag fire of combustion process, avoid the burner coking, reached the purpose of the different coals of can burning.
Because this burner is used for the plasma ignition device that direct firing coal-dust starts Industrial Boiler, accelerated this equipment applying on Industrial Boiler, because having replaced Industrial Boiler can be country with the conventional method of fuel mode starting ignition, steady combustion save fuel oil about 3,200,000 tons every year, amount to 10,000,000,000 yuan of RMB, have tangible economic benefit and social benefit.
Fig. 1 is the structural representation of the multifunction coal dust combustor of multistage axial powder feed of employing described in the utility model and air film cooling technology.
In conjunction with the accompanying drawings the utility model is described further below by embodiment:
Embodiment 1
As shown in Figure 1, a kind of multifunction coal dust combustor that adopts multistage axial powder feed and air film cooling technology, it is mainly by burner nozzle 1, fourth stage combustion barrel 2, burner urceolus 3, third level combustion barrel 4, secondary wind inner sleeve 5, second level combustion barrel 6, wind powder pipe spare 7, first-stage burning tube outer tube 8, secondary wind enters pipe 9, primary wind and powder deflector 10, first-stage burning drum flange dish 11, first-stage burning tube 12, high-temperature plasma body canal 13, first-stage burning tube deflector 14, the first-stage burning tube enters pipe 15, second level combustion barrel enters pipe 16, primary wind and powder enters pipe 17, adjustable coal powder light-dark deflector 18, second level combustion barrel deflector 19, third level combustion barrel coal dust passage 20, gusset piece 21, secondary air channel 22, gusset piece 23, secondary air channel 24, above parts connect by welding manner with gusset piece successively, wind powder pipe spare 7 is with using screw attachment between the combustion barrel, first-stage burning tube 12, first-stage burning tube overcoat 8 and high-temperature plasma body canal 13 weld together with first-stage burning drum flange dish 11.Burner nozzle 1 welds together with burner urceolus 3.The cooling air that enters pipe 9 from secondary wind divides three the tunnel respectively to first-stage burning tube outer tube 8, and first-stage burning tube 12 outer walls are cooled off and oxygenating; Third level combustion barrel 4 outer walls and fourth stage combustion barrel 2 outer walls are cooled off; Fourth stage combustion barrel 2 inwalls are cooled off and oxygenating in advance; Combustion barrel 6 outer walls in the second level cool off with wind powder air-flow.
The mandatory axial powder feed that becomes of the wind powder mixture that will radially send here in first-stage burning tube 12 has been avoided the burner coking, can success light different coals.
Working method of the present utility model and principle are: enter the high-temperature plasma that a small amount of coal pruinescence high-temperature plasma body canal 13 transmission of first-stage burning tube 12 comes and light and form little torch, this little torch pours second level combustion barrel 6 to be mixed and lights with coal dusts in a large number.Flame carries out the oxygenating overheavy firing and reaches the purpose of the rigidity that improves flame in third level combustion barrel 4 and fourth stage combustion barrel 2.

Claims (2)

1, a kind of multifunction coal dust combustor that adopts multistage axial powder feed and air film cooling technology, it mainly is made up of wind powder pipe spare and multistage coal burner.It is characterized in that: in primary wind and powder enters pipe (17), insert the first-stage burning tube and enter pipe (15), second level combustion barrel enters a pipe (16) and an adjustable coal powder light-dark deflector (18), at high-temperature plasma body canal (13) and first-stage burning tube outer tube (8) outside weldings first-stage burning tube deflector (14) and second level combustion barrel deflector (19); Entering pipe (17) at primary wind and powder enters with secondary wind between the pipe (9) with primary wind and powder deflector (10) isolation.
2, the coal burner of multistage axial powder feed of employing according to claim 1 and air film cooling technology is characterized in that: reaching third level combustion barrel (4) between fourth stage combustion barrel (2) is with third level combustion barrel (4) has the annular gap that imports secondary wind with all designing between the second level combustion barrel (6); First-stage burning tube deflector (14) and second level combustion barrel deflector (19) water conservancy diversion corner are 90 °.
CN 01201022 2001-01-15 2001-01-15 Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique Expired - Lifetime CN2487965Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01201022 CN2487965Y (en) 2001-01-15 2001-01-15 Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01201022 CN2487965Y (en) 2001-01-15 2001-01-15 Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique

Publications (1)

Publication Number Publication Date
CN2487965Y true CN2487965Y (en) 2002-04-24

Family

ID=33623184

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01201022 Expired - Lifetime CN2487965Y (en) 2001-01-15 2001-01-15 Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique

Country Status (1)

Country Link
CN (1) CN2487965Y (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007131392A1 (en) * 2006-05-17 2007-11-22 Hangzhou Yineng Energy Retrenchment Technology Co., Ltd. A pulverized coal burner with a baffle
CN100441953C (en) * 2006-11-30 2008-12-10 艾佩克斯科技(北京)有限公司 Micro-oil plasma composite ignition and combustion-stabilization method and device therefor
CN101900330A (en) * 2010-07-23 2010-12-01 西安交通大学 Plasma ignition burner for anthracite
CN102072488A (en) * 2011-01-31 2011-05-25 哈尔滨工业大学 High speed burner for combustion chamber with film cooling type corrugated shell structure
CN101639217B (en) * 2008-08-01 2011-09-21 北京光耀能源技术股份有限公司 Two-stage speed-down pulverized coal burner
CN102345863A (en) * 2011-09-28 2012-02-08 南京创能电力科技开发有限公司 Depth hierarchy low-NOx combustion system in low-temperature plasma direct-current pulverized coal furnace
CN102927567A (en) * 2012-11-08 2013-02-13 曲大伟 Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace
CN103322556A (en) * 2013-05-20 2013-09-25 河南陆德筑机股份有限公司 Pulverized coal burner
CN103562639A (en) * 2010-11-03 2014-02-05 西门子能量股份有限公司 Tiltable multiple-staged coal burner in horizontal arrangement
CN105333422A (en) * 2015-11-24 2016-02-17 沈阳安瑞洁能源设备科技有限公司 Pulverized coal fractional burner by taking reburning inert component added water electrolysis gas as heat source
CN105910134A (en) * 2016-04-14 2016-08-31 北京大学 Plasma ignition combustion-supporting system
CN106705075A (en) * 2016-12-12 2017-05-24 深圳智慧能源技术有限公司 Torch with forced-cooling air film

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2019263A1 (en) * 2006-05-17 2009-01-28 Hangzhou Yineng Energy Retrenchment Technology Co. A pulverized coal burner with a baffle
EP2019263A4 (en) * 2006-05-17 2014-02-05 Hangzhou Yineng Energy Retrenchment Technology Co A pulverized coal burner with a baffle
WO2007131392A1 (en) * 2006-05-17 2007-11-22 Hangzhou Yineng Energy Retrenchment Technology Co., Ltd. A pulverized coal burner with a baffle
CN101427072B (en) * 2006-05-17 2011-06-01 杭州意能节能技术有限公司 A pulverized coal burner with a baffle
CN100441953C (en) * 2006-11-30 2008-12-10 艾佩克斯科技(北京)有限公司 Micro-oil plasma composite ignition and combustion-stabilization method and device therefor
CN101639217B (en) * 2008-08-01 2011-09-21 北京光耀能源技术股份有限公司 Two-stage speed-down pulverized coal burner
CN101900330B (en) * 2010-07-23 2012-03-28 西安交通大学 Plasma ignition burner for anthracite
CN101900330A (en) * 2010-07-23 2010-12-01 西安交通大学 Plasma ignition burner for anthracite
CN103562639A (en) * 2010-11-03 2014-02-05 西门子能量股份有限公司 Tiltable multiple-staged coal burner in horizontal arrangement
CN102072488A (en) * 2011-01-31 2011-05-25 哈尔滨工业大学 High speed burner for combustion chamber with film cooling type corrugated shell structure
CN102345863A (en) * 2011-09-28 2012-02-08 南京创能电力科技开发有限公司 Depth hierarchy low-NOx combustion system in low-temperature plasma direct-current pulverized coal furnace
CN102927567A (en) * 2012-11-08 2013-02-13 曲大伟 Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace
CN103322556A (en) * 2013-05-20 2013-09-25 河南陆德筑机股份有限公司 Pulverized coal burner
CN103322556B (en) * 2013-05-20 2015-11-18 河南陆德筑机股份有限公司 A kind of powdered coal burner
CN105333422A (en) * 2015-11-24 2016-02-17 沈阳安瑞洁能源设备科技有限公司 Pulverized coal fractional burner by taking reburning inert component added water electrolysis gas as heat source
CN105910134A (en) * 2016-04-14 2016-08-31 北京大学 Plasma ignition combustion-supporting system
CN105910134B (en) * 2016-04-14 2018-07-17 北京大学 A kind of plasma igniting combustion-supporting system
CN106705075A (en) * 2016-12-12 2017-05-24 深圳智慧能源技术有限公司 Torch with forced-cooling air film
CN106705075B (en) * 2016-12-12 2023-12-12 深圳智慧能源技术有限公司 Forced air film cooling torch

Similar Documents

Publication Publication Date Title
CN2487965Y (en) Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique
CN103791494B (en) A kind of air-cooled coal dust low NO and using method thereof
CN109058979B (en) Cyclone furnace denitration system and method
CN105318328B (en) The interior more flame low NOX gas burners of circulation
CN109973994B (en) Low-nitrogen burner
CN203927939U (en) Dual firing chamber's waste liquid combined feed device
CN201903064U (en) Plasma refuse incinerator
CN101446412B (en) Pulverized coal burner
CN2493843Y (en) Ignition burner for coal boiler
CN101178175A (en) Lean oil heat intensified firing actuating apparatus of pulverized coal boiler
CN103836620A (en) Oxygen-enriched micro-oil fractional combustion device
CN208418734U (en) A kind of low-NOx combustor for natural gas and coal dust
CN208025504U (en) A kind of coal burner
CN2429752Y (en) Two stage flame ignitor for coal powder directly
CN101592337A (en) Internal combustion ignition pulverized coal burner
CN202546785U (en) Low-heating value tail gas combustion engine
CN112443833B (en) Pulverized coal fired boiler with bottom-mounted burner and control method thereof
CN108397774A (en) It is a kind of to be used for natural gas and the coal dust individually burner of burning or multifuel combustion
CN204987020U (en) Can effectively restrain burning furnace that burns that domestic waste burned emission of in -process harmful gas
CN2926843Y (en) Oil-enhanced combustion trigger of coal powder boiler
CN201496958U (en) W-flame cyclone separation low-oil ignition burner
CN210373404U (en) Horizontal pulverized coal fired boiler
CN2479380Y (en) Plasma guide pipe for plasma igniter
CN210638051U (en) Prevent useless burning furnace that burns of high efficiency danger of returning charge
CN210373405U (en) Vertical pulverized coal boiler

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: YANTAI LONGYUAN ELECTRIC TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: LONGYUAN ELECTRIC POWER BURNING + CONTROLLING ENGINEERING CO., LTD., YANTAI DEVE

Effective date: 20080523

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20080523

Address after: No. 9, Hengshan Road, Yantai Development Zone, Shandong Province, China: 264006

Patentee after: Yantai Longyuan Electric Power Technology Co., Ltd.

Address before: Room 308, block A, 161 Changjiang Road, Yantai Development Zone, Shandong Province, Wang Aisheng, postcode: 264006

Patentee before: Longyuan Electric Power Combustion Control Engineering Co., Ltd., Yantai Develop

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20110115

Granted publication date: 20020424