CN102563640A - Oil burner with high-efficiency burning and low pollution emission - Google Patents

Oil burner with high-efficiency burning and low pollution emission Download PDF

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Publication number
CN102563640A
CN102563640A CN2012100160478A CN201210016047A CN102563640A CN 102563640 A CN102563640 A CN 102563640A CN 2012100160478 A CN2012100160478 A CN 2012100160478A CN 201210016047 A CN201210016047 A CN 201210016047A CN 102563640 A CN102563640 A CN 102563640A
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CN
China
Prior art keywords
oil burner
airduct
oil
secondary air
air channel
Prior art date
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Pending
Application number
CN2012100160478A
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Chinese (zh)
Inventor
谢佳
张山鹰
王军
叶恩清
刘泰生
陈灿
陈阳
莫春鸿
李家全
张定海
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.)
Dongfang Boiler Group Co Ltd
Original Assignee
Dongfang Boiler Group Co Ltd
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Filing date
Publication date
Application filed by Dongfang Boiler Group Co Ltd filed Critical Dongfang Boiler Group Co Ltd
Priority to CN2012100160478A priority Critical patent/CN102563640A/en
Publication of CN102563640A publication Critical patent/CN102563640A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an oil burner with high-efficiency burning and low pollution emission. An oil burner body comprises an oil gun sleeve, a primary air pipe, a secondary air pipe and a grading air pipe, wherein the oil gun sleeve is arranged on the central axis of the oil burner body; the primary air pipe, the secondary air pipe and the grading air pipe are sheathed at the periphery of the oil gun sleeve; the grading air pipe, the secondary air pipe and the primary air pipe are respectively in the same central axis with the oil gun sleeve; a primary air channel is formed between the primary air pipe and the oil gun sleeve; the end part of the primary air channel is provided with a flame stabilizer; a secondary air channel is formed between the secondary air pipe and the oil gun sleeve; an axial cyclone with an adjustable axial position is arranged in the secondary air channel; a grading air channel is formed between the grading air pipe and the secondary air pipe, and an inlet position of the grading air pipe is provided with a tangential cyclone; and one end of the primary air pipe, which is far away from a nozzle of the oil burner, is provided with a flame segmenting ring. The oil burner has the advantages that high-efficiency burning and low pollution emission can be effectively realized, and the problems of incomplete burning with black smoke, and high pollutant emission and the like easily occurring on the original oil burner in operation can be effectively avoided.

Description

Efficient burning low pollution emission oil burner
Technical field
The present invention relates to a kind of oil burner, relate in particular to a kind of oil burner that is applicable to each capacitance grade oil burning boiler, efficient burning low pollution emission, belong to technical field of burner.
 
Background technology
Oil burning boiler is a kind of as station boiler, though at home owing to the reason market shares such as fuel cost are less, still have market prospects preferably in the world.Oil burner is one of important composition parts of oil burning boiler; Existing oil burner mainly is made up of oil burner nozzle and air register, and oil burner nozzle is placed on the air register axial line, and mist of oil is changed into thin dripping; Spray in the combustion chamber with certain angle of flare, mix the postignition burning mutually with the air that air register is sent into.Oil burner as far as the oil burning boiler employing; If burning and air distribution are organized bad; Not only can also can produce pollutants such as a large amount of nitrogen oxide, ecological environment is caused serious harm owing to incomplete combustion produces a large amount of black smokes; Therefore how taking measures to reduce the discharged nitrous oxides of oil burner, is an instant job that comprises that all thermal power generation units of oil and gas boiler face.
Burners in prior is the air channel start-up burner mostly; The air channel start-up burner is mainly used in the ignition under bed of CFBB; Ignition under bed is because the igniting heat utilization ratio is high; Advantages such as ignition trigger speed is fast, the burning hot distributed uniform of point extensively apply in the large-size circulating fluidized bed ignition trigger system.But often there is combustion instability in existing air channel start-up burner in the process of operation, and the ignition air duct combustion is decreased, and start-up burner self fires problems such as damage, thereby has influenced the normal use of start-up burner.
 
Summary of the invention
The objective of the invention is to: a kind of oil burner that is used for each capacitance grade oil burning boiler, efficient burning low pollution emission is provided; The incomplete combustion of avoiding oil burner in the past to be in operation occurring easily and over-emitting black exhaust, the high technical problem of pollutant discharge amount, thus the problem that exists in the above-mentioned prior art can effectively be solved.
The object of the invention realizes through following technical proposals: a kind of efficient burning low pollution emission oil burner; Comprise oil burner body, oil burner shower nozzle and isobaric bellows; Said oil burner body is located in the isobaric bellows; The oil burner body comprises the oil gun sleeve pipe on the axis located therein and is sheathed on oil gun sleeve pipe peripheral an airduct, secondary air channel and classification airduct successively, said classification airduct, secondary air channel and airduct all with the same axis of oil gun sleeve pipe; Form an air channel between a said airduct and the oil gun sleeve pipe; Stabilizer is established in the end in an air channel; Form secondary air duct between said secondary air channel and an airduct; Establish the adjustable axial swirler of axial location in the secondary air duct, form the classification air channel between said classification airduct and the secondary air channel, be provided with the tangential swirl device in the porch of said classification airduct; Be provided with flame at a said airduct away from an end of oil burner shower nozzle and cut apart ring.
As a kind of optimal way, the blade angle of said axial swirler is the 45-55 degree.
As further optimal way, said tangential swirl device is formed along 24 evenly distributed blades of circumference by one group.
As a kind of optimal way, the outer wall of said oil gun sleeve pipe is fixed with first bracing frame, and one time airduct is fixed through first bracing frame and oil gun sleeve pipe.
As a kind of optimal way, the outer wall of a said airduct is fixed with second support bar, and secondary air channel is fixed through second support bar and an airduct.
As a kind of optimal way, said classification airduct is fixed through mounting flange plate and the secondary air channel of being located at the one of which end.
As further optimal way, said isobaric bellows are provided with the thermal-insulating sealing case outward.
As further optimal way, said oil burner body also comprises secondary air register adjusting device, secondary wind eddy flow adjusting device and classification regulating device of air door; Secondary air register adjusting device and secondary wind eddy flow adjusting device are passed through pull bar and are stretched out oil burner body and thermal-insulating sealing case; The classification regulating device of air door passes through the adjusting rotating shaft and stretches out the oil burner body, and said adjusting rotating shaft links to each other with the swing arm of oil burner body through actuator.
Compared with prior art; Beneficial effect of the present invention: efficient burning low pollution emission oil burner of the present invention can effectively be realized efficient burning, low pollution emission; The incomplete combustion that can effectively avoid oil burner in the past to be in operation occurring easily and over-emitting black exhaust, pollutant discharge amount are high, especially problems such as nitrogen oxide emission height; This efficient burning low pollution emission oil burner can also be used the ignition trigger burner of common pulverized-coal fired boiler; Specifically:
1. the present invention has adopted the air stage feeding form of large scale, can effectively guarantee the stable ignition and the burning of oil burner;
2. oil burner adopts large-sized stabilizer, makes the rotation of a spot of root wind strong, can better realize and the mixing of mist of oil, and reduces the carbon black growing amount at the initial stage of catching fire, and reduces black smoke;
3. secondary wind adopts axial swirler, classification elegance to use the tangential swirl device, forms different air-flows in the different phase of burning and distributes;
4. adopt flame to cut apart ring structure, the required classification with wind that further realizes burning is sent into, and reduces the discharging of nitrogen oxide;
5. oil burner adopts multiple adjusting device, can realize multiple burning air distribution combination and swirl strength flexibly, and is more quick quick to the response of boiler load;
6. be provided with the thermal-insulating sealing case in the end of oil burner, can realize the installation of oil burner and bellows easily.
 
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein: oil gun sleeve pipe-1, time airduct-2, secondary air channel-3, classification airduct-4, isobaric bellows-5; Stabilizer-6, axial swirler-7, tangential swirl device-8, flame is cut apart ring-9; Secondary air register adjusting device-10, secondary wind eddy flow adjusting device-11, classification regulating device of air door-12, thermal-insulating sealing case-13; First bracing frame-14, the second support bar-15, time air channel-16, secondary air duct-17; Classification air channel-18, flanged plate-19, pull bar-21 is regulated rotating shaft-22; Actuator-23, swing arm-24, oil burner shower nozzle-102, oil burner body-101.
 
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process are except the speciality of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.
Fig. 1 shows the efficient burning low pollution emission oil burner that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
Embodiment 1
As shown in Figure 1; Efficient burning low pollution emission oil burner of the present invention comprises oil burner body 101, oil burner shower nozzle 102 and isobaric bellows 5; Said oil burner body 101 is located in the isobaric bellows 5; Be provided with thermal-insulating sealing case 13 outside the said isobaric bellows 5, all air feeds of oil burner all come from isobaric bellows 5.Oil burner body 101 comprises the oil gun sleeve pipe 1 on the axis located therein and is sheathed on oil gun sleeve pipe 1 peripheral an airduct 2, secondary air channel 3 and classification airduct 4 successively, said classification airduct 4, secondary air channel 3 and airduct 2 all with oil gun sleeve pipe 1 same axis; Specifically, to be fixed with 14, airducts of first bracing frame 2 fixing with oil gun sleeve pipe 1 through first bracing frame 14 for the outer wall of said oil gun sleeve pipe 1; The outer wall of a said airduct 2 is fixed with second support bar 15, and secondary air channel 3 is fixing through second support bar 15 and an airduct 2; Said classification airduct 4 is fixing with secondary air channel 3 through the mounting flange plate 19 of being located at the one of which end.Form an air channel 16 between a said airduct 2 and the oil gun sleeve pipe 1; Stabilizer 6 is established in the end in an air channel 16; Form secondary air duct 17 between said secondary air channel 3 and an airduct 2; Establish the adjustable axial swirler of axial location 7 in the secondary air duct 17, the blade angle of said axial swirler 7 is the 45-55 degree.Form classification air channel 18 between said classification airduct 4 and the secondary air channel 3, be provided with tangential swirl device 8 in the porch of said classification airduct 4; Said tangential swirl device 8 is formed along 24 evenly distributed blades of circumference by one group.Be provided with flame at a said airduct 2 away from an end of oil burner shower nozzle 102 and cut apart ring 9.
Said oil burner body 101 also comprises secondary air register adjusting device 10, secondary wind eddy flow adjusting device 11 and classification regulating device of air door 12; Secondary air register adjusting device 10 is passed through pull bar 21 with secondary wind eddy flow adjusting device 11 and is stretched out oil burner body 101 and thermal-insulating sealing case 13; Classification regulating device of air door 12 is through regulating rotating shaft 22 and pass and stretching out oil burner body 101; Said adjusting rotating shaft 22 links to each other with the swing arm 24 of oil burner body 101 through actuator 23; Also can adopt the mode of manual adjustments, promptly regulate rotating shaft 22 and oil burner body 101 and link to each other through manual adjustment means.
The mechanism of oil burner of the present invention is following:
The main effect of oil gun sleeve pipe 1 is to place oil gun.Oil gun sleeve pipe 1 is arranged in the position, axis of whole oil burner, plays the effect of confirming whole oil burner center, and all the other each airducts of oil burner all are coaxial circles tubular structures coaxial with oil gun sleeve pipe axis.
The main effect of an airduct 2 is that wind is being provided for oil burner one time, and mist of oil was just mixed with a wind before catching fire, and pyrolytic occurs to prevent fuel oil; Wind is sent into burner hearth through an air channel between oil gun sleeve pipe and the airduct.In an air channel, also be furnished with the stabilizer of large scale, high swirl strength, make the root wind energy enough better participate in burning; Choose suitable primary air velocity and primary air ratio simultaneously, make that the mixing of root wind is more even, satisfy the requirement at burning initial stage.
The main effect of secondary air channel 3 is for oil burner secondary wind to be provided; Secondary wind is the required major part with wind of oil burner burning: be provided with the adjustable cyclone of axial location in the secondary air duct between airduct and the secondary air channel; Its objective is that the wind that makes process produces rotation; The rotation wind after leaving burner nozzle to around the expansion; Center at burner outlet forms a negative pressuren zone, thereby makes high temperature gases recirculating so far, and the high-temperature flue gas of backflow can provide enough heats to make fuel fire.Choosing of secondary wind swirl strength; Form a bigger high temperature recirculation zone for avoiding fuel occurring at burner outlet, combustion reaction is too violent, and the flame spike temperature of burner region is too high; Select 45~55 ° blade angle for use, promptly selected the cyclone of less swirl strength.
The main effect of classification airduct 4 is that classification wind is being provided for oil burner; The classification elegance is with the mode of tangential air intake; Promptly be provided with the tangential swirl device at the porch and the air inlet upper reaches of classification airduct; Promptly adopt one group of 24 blade along the circumferential direction to be uniformly distributed with, can change through the air channel flow area of tangential swirl device and the approach axis of wind through the adjusting vane angle, just can flexible classification air quantity and swirl strength.This burner is in order to realize the air stage feeding of large scale; Adopted the classification air quantity of vast scale; Its classification wind rate is 35~45% of a burner total blast volume; To adopt less classification wind rate not have classification wind to have even different significantly with conventional oil burner, can reduce the discharging of pollutants such as nitrogen oxide to greatest extent.
The main effect that flame is cut apart ring 9 is in order better to realize the burning of high-efficiency low-pollution discharging; Flame is cut apart the head that ring is arranged on an airduct; Be designed with the certain angle and the degree of depth, make secondary wind be able to change and send into direction cutting apart ring through flame at 9 o'clock, can postpone the incorporation time of secondary wind and flame; Between main flame, form barrier at root flame, be about to flame and be divided into two parts in diametric(al).This oil burner is cut apart ring and 9 can be matched with secondary wind and the classification wind reamer angle of different angles through flame is set, and forms the optimum gas distributions that different Oil Gun and different oil product burn.
The main effect of secondary air register adjusting device 10, secondary wind eddy flow adjusting device 11 and classification regulating device of air door 12 is to realize multiple burning air distribution combination and swirl strength flexibly, and is more quick quick to the response of boiler load.Secondary air register adjusting device and secondary wind eddy flow adjusting device passes the burner panel through pull bar and the thermal-insulating sealing case stretches out outside the burner; The pull bar afterbody is a threaded rod, through the just axial location of adjustable damper and cyclone of corresponding adjusting nut in the device for regulating rotary.The classification regulating device of air door passes the burner panel through the adjusting rotating shaft and reaches outside the burner; Rotating shaft links to each other with the swing arm of burner with actuator; Through actuator or manual drives; By swing arm reciprocal rectilinear motion is converted into the rotation of driving shaft, and drives all the other 23 driven shafts rotations, to realize the synchro switch of 24 tertiary air door shield plates.The classification air door is closed hour, can reduce the classification air quantity, increase classification wind swirl strength; The classification air door is opened when big, can be increased the classification air quantity, reduce classification wind swirl strength.
The contrast test of on boiler, burning: adopt the oil burner of a DBC-HCLP 800kg/h to carry out the heat state combustion test and contrast with the common heavy burner; Under same operating condition of test, minimum through this oil burner of test nitrogen oxide emission is 338.7 mg/Nm 33%O 2(this is a concentration unit, converts 3% oxygen content), well below conventional oil burner discharged nitrous oxides at 600~700mg/Nm 33%O 2Level.
Draw thus, the incomplete combustion that oil burner of the present invention can effectively be avoided oil burner in the past to be in operation occurring easily and over-emitting black exhaust, pollutant be problem such as nitrogen oxide emission height especially.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. efficient burning low pollution emission oil burner; Comprise oil burner body (101), oil burner shower nozzle (102) and isobaric bellows (5); Said oil burner body (101) is located in the isobaric bellows (5); It is characterized in that: oil burner body (101) comprises the oil gun sleeve pipe (1) on the axis located therein and is sheathed on oil gun sleeve pipe (1) peripheral an airduct (2), secondary air channel (3) and classification airduct (4) successively, said classification airduct (4), secondary air channel (3) and an airduct (2) all with the same axis of oil gun sleeve pipe (1); Form an air channel (16) between a said airduct (2) and the oil gun sleeve pipe (1); Stabilizer (6) is established in the end in an air channel (16); Form secondary air duct (17) between a said secondary air channel (3) and the airduct (2); Establish the adjustable axial swirler of axial location (7) in the secondary air duct (17), form classification air channel (18) between said classification airduct (4) and the secondary air channel (3), be provided with tangential swirl device (8) in the porch of said classification airduct (4); Be provided with flame at a said airduct (2) away from an end of oil burner shower nozzle (102) and cut apart ring (9).
2. efficient burning low pollution emission oil burner as claimed in claim 1 is characterized in that: the blade angle of said axial swirler (7) is the 45-55 degree.
3. like the described efficient burning low pollution emission of arbitrary claim oil burner in claim 1 or 2, it is characterized in that: said tangential swirl device (8) is formed along 24 evenly distributed blades of circumference by one group.
4. efficient burning low pollution emission oil burner as claimed in claim 1 is characterized in that: the outer wall of said oil gun sleeve pipe (1) is fixed with first bracing frame (14), and an airduct (2) is fixing through first bracing frame (14) and oil gun sleeve pipe (1).
5. efficient burning low pollution emission oil burner as claimed in claim 1 is characterized in that: the outer wall of a said airduct (2) is fixed with second support bar (15), and secondary air channel (3) is fixing through second support bar (15) and an airduct (2).
6. efficient burning low pollution emission oil burner as claimed in claim 1 is characterized in that: said classification airduct (4) is fixing with secondary air channel (3) through the mounting flange plate (19) of being located at the one of which end.
7. efficient burning low pollution emission oil burner as claimed in claim 3 is characterized in that: the outer thermal-insulating sealing case (13) that is provided with of said isobaric bellows (5).
8. efficient burning low pollution emission oil burner as claimed in claim 7 is characterized in that: said oil burner body (101) also comprises secondary air register adjusting device (10), secondary wind eddy flow adjusting device (11) and classification regulating device of air door (12); Secondary air register adjusting device (10) and secondary wind eddy flow adjusting device (11) are passed through pull bar (21) and are stretched out oil burner body (101) and thermal-insulating sealing case (13); Classification regulating device of air door (12) passes through adjusting rotating shaft (22) and stretches out oil burner body (101), and said adjusting rotating shaft (22) links to each other with the swing arm (24) of oil burner body (101) through actuator (23).
CN2012100160478A 2012-01-19 2012-01-19 Oil burner with high-efficiency burning and low pollution emission Pending CN102563640A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927569A (en) * 2012-11-08 2013-02-13 东方电气集团东方锅炉股份有限公司 Horizontal flow burner
CN104214773A (en) * 2014-07-18 2014-12-17 东方电气集团东方锅炉股份有限公司 Ultra-low NOx rotational flow powdered coal burner
CN106224950A (en) * 2016-09-06 2016-12-14 青岛华煤能源科技有限公司 Semicoke fuel gasification combustion device and air-intake device
CN106287691A (en) * 2015-05-15 2017-01-04 四川天法科技有限公司 A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout
CN107120645A (en) * 2017-03-24 2017-09-01 浙江大学 A kind of spray cyclone burner with acoustic damping pipe and position adjustable rotary flow table
CN108224420A (en) * 2018-03-05 2018-06-29 上海华之邦科技股份有限公司 A kind of gas fired-boiler Secondary Air coupled mode low NOx combustion system
CN110107889A (en) * 2019-05-15 2019-08-09 宁夏神耀科技有限责任公司 A kind of flue gas two-way circulation and the low NO system of combustion zone segmentation
CN110542086A (en) * 2019-09-30 2019-12-06 王振琦 Binary horizontal burner
CN111219709A (en) * 2014-05-15 2020-06-02 韩国生产技术研究院 Combustion device for separate combustion and mixed combustion of petroleum coke fuel
CN111780101A (en) * 2019-04-04 2020-10-16 温岭市博惠热能设备股份有限公司 Methanol burner and method for realizing low nitrogen oxide emission
CN113188121A (en) * 2021-04-01 2021-07-30 东方电气集团东方锅炉股份有限公司 Ultralow nitrogen combustor spout, combustor and boiler

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CN201129725Y (en) * 2007-07-25 2008-10-08 杜风波 Double rotary stream flame steady device
CN101315189A (en) * 2008-07-03 2008-12-03 徐州华远燃烧控制工程有限公司 Graded wind-adjusting low NOX multi-fuel combustion device
CN201866763U (en) * 2010-09-01 2011-06-15 安徽易能生物能源有限公司 Biomass oil burner

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JPS59145405A (en) * 1983-02-08 1984-08-20 Mitsubishi Heavy Ind Ltd Burner device
JPS62276309A (en) * 1986-05-26 1987-12-01 Hitachi Ltd Burner device
CN88203589U (en) * 1988-02-22 1988-09-21 哈尔滨市锅炉燃烧设备厂 Multifunctional adjustable shunting oil (gas) burner
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927569B (en) * 2012-11-08 2015-06-24 东方电气集团东方锅炉股份有限公司 Horizontal flow burner
CN102927569A (en) * 2012-11-08 2013-02-13 东方电气集团东方锅炉股份有限公司 Horizontal flow burner
CN111219709A (en) * 2014-05-15 2020-06-02 韩国生产技术研究院 Combustion device for separate combustion and mixed combustion of petroleum coke fuel
CN104214773A (en) * 2014-07-18 2014-12-17 东方电气集团东方锅炉股份有限公司 Ultra-low NOx rotational flow powdered coal burner
CN104214773B (en) * 2014-07-18 2017-09-05 东方电气集团东方锅炉股份有限公司 Ultralow nox swirling fine coal burner
CN106287691A (en) * 2015-05-15 2017-01-04 四川天法科技有限公司 A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout
CN106224950A (en) * 2016-09-06 2016-12-14 青岛华煤能源科技有限公司 Semicoke fuel gasification combustion device and air-intake device
CN107120645A (en) * 2017-03-24 2017-09-01 浙江大学 A kind of spray cyclone burner with acoustic damping pipe and position adjustable rotary flow table
CN108224420A (en) * 2018-03-05 2018-06-29 上海华之邦科技股份有限公司 A kind of gas fired-boiler Secondary Air coupled mode low NOx combustion system
CN108224420B (en) * 2018-03-05 2024-04-26 上海博士高环保科技有限公司 Secondary air coupling type low NOx combustion system of gas boiler
CN111780101A (en) * 2019-04-04 2020-10-16 温岭市博惠热能设备股份有限公司 Methanol burner and method for realizing low nitrogen oxide emission
CN110107889A (en) * 2019-05-15 2019-08-09 宁夏神耀科技有限责任公司 A kind of flue gas two-way circulation and the low NO system of combustion zone segmentation
CN110542086B (en) * 2019-09-30 2024-03-29 王振琦 Binary horizontal burner
CN110542086A (en) * 2019-09-30 2019-12-06 王振琦 Binary horizontal burner
CN113188121A (en) * 2021-04-01 2021-07-30 东方电气集团东方锅炉股份有限公司 Ultralow nitrogen combustor spout, combustor and boiler
CN113188121B (en) * 2021-04-01 2022-11-04 东方电气集团东方锅炉股份有限公司 Ultralow nitrogen combustor spout, combustor and boiler

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Application publication date: 20120711