CN105509052B - A kind of burner with arc body fluidic device - Google Patents

A kind of burner with arc body fluidic device Download PDF

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Publication number
CN105509052B
CN105509052B CN201510856610.6A CN201510856610A CN105509052B CN 105509052 B CN105509052 B CN 105509052B CN 201510856610 A CN201510856610 A CN 201510856610A CN 105509052 B CN105509052 B CN 105509052B
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China
Prior art keywords
nozzle
arc
tube
combustion tube
combustion
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CN201510856610.6A
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Chinese (zh)
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CN105509052A (en
Inventor
杜敏
钱斌斌
王跃成
印刚
王助良
黄彬
戴世佳
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Jiangsu University
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Jiangsu University
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/62Mixing devices; Mixing tubes
    • F23D14/64Mixing devices; Mixing tubes with injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2203/00Gaseous fuel burners
    • F23D2203/007Mixing tubes, air supply regulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2900/00Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/21Burners specially adapted for a particular use

Abstract

The present invention provides a kind of Novel burner nozzle with arc body fluidic device, which includes combustion tube, nozzle, arc body fluidic device, air hose, Gas Pipe, Gas Pipe automatic regulating valve, temperature sensor and controller;The outlet of nozzle of the present invention is involute structure, it is matched with the arc path transfer valve body of arc body fluidic device, the structure makes air-flow at streamlined, reduce kinetic energy rejection, it ensure that the impact force of flame, the present invention automatically controls the size that the automatic adjustment valve is opened by the controller, rationally controls air-fuel ratio according to the dosage of combustion gas and air.During the present invention solves current ladle baking, the blast-furnace gas of low heating value is not easy to light under normal temperature state, is easy the problem of cutoff is extinguished, and solves flame and be short of power, resistance is big, the problems such as fuel gas buring is incomplete, have many advantages, such as it is reasonable for structure, it is easy to use.

Description

A kind of burner with arc body fluidic device
Technical field
The invention belongs to burner noz(zle) technical fields, and in particular to a kind of Novel burner nozzle with arc body fluidic device.
Background technology
The use of burner is very universal in metallurgy industry, promotes the fast development of iron and steel enterprise, iron and steel enterprise's energy Consumption is also growing, causes serious pollution to environment, the haze especially generated has great injury to health.Institute To find a kind of method, improve the efficiency of combustion of fuel, reduce the discharge of polluted gas, be a major issue benefited the nation and the people.
Chinese patent CN2640661 discloses a kind of heat storing type ladle baker in 2004.09.15.This ladle baking Device is needed by combustion fan ability normal combustion, and combustion fan power is big, it is difficult to accurately adjust the ratio of air fuel, and is fired Burn insufficient, temperature is low, easy tos produce the flame-out phenomenon of cutoff, and light difficulty.In addition, Chinese patent CN1869515A with 2006.11.29 disclosing the internal combustion burning blast-furnace gas special nozzle with cone fluidic device.This burner will produce kinetic energy damage It loses, there is no automatic control and adjustment valve, cannot control effectively to other combustion gas, be fitted without automatic ignition device, electrical fire is tired It is difficult.
Invention content
The object of the present invention is to provide a kind of Novel burner nozzle with arc body fluidic device, which includes arc body jet stream Device, it is reasonable for structure, it is easy to use, it can make that fuel gas fully burns and ignition temperature is high, solve current fuel gas Burning, insufficient, incomplete, ignition temperature is low, is easy the problems such as cutoff is flame-out.
The technical scheme is that:A kind of Novel burner nozzle with arc body fluidic device, including combustion tube, nozzle, arc Body fluidic device, air hose, Gas Pipe, temperature sensor and controller;
The nozzle is the streamlined cavity body structure equipped with inlet and outlet, and the import of the nozzle is solid with the Gas Pipe Fixed connection, the outlet of the nozzle extend in the rear end of the combustion tube, and the front end of the combustion tube is flame export;It is described The outlet of nozzle is bore involute structure;
The arc body fluidic device includes path transfer valve hand wheel, path transfer valve operating rod and arc path transfer valve body;Arc path transfer Valve body is located at the exit of the nozzle, and the bottom end of the path transfer valve operating rod is fixedly connected with the arc path transfer valve body, top End is pierced by the nozzle and is fixedly connected with the path transfer valve hand wheel, the part spiral shell that the path transfer valve operating rod is contacted with the nozzle Line connects;
The upper end of the air hose is fixedly connected with the outer wall of the nozzle, and lower end and the rear end outer wall of the combustion tube are solid Fixed connection, forms annular space A, the combustion tube inner tubal wall between the air hose inner tubal wall and the outer tube wall of the combustion tube Formation annular space B, the annular space A are connected with the annular space B between the outer tube wall of the nozzle;
The Gas Pipe is equipped with Gas Pipe automatic regulating valve;The temperature sensor is located at the exit of the nozzle;
The controller is electrically connected with the Gas Pipe automatic regulating valve and temperature sensor respectively;
The temperature sensor is used to acquire the temperature signal in the combustion tube, and temperature signal is transmitted to the control Device processed, the controller control the aperture of the Gas Pipe automatic regulating valve according to the temperature signal.
In said program, automatic ignition device is also fixedly mounted in the combustion tube;The automatic ignition device is located at institute State nozzle exit;
The controller is electrically connected with the automatic ignition device, and the controller controls the automatic ignition device point Fire.
In said program, the length of the combustion tube is more than 2 times that the nozzle is located at the combustion tube inner length.
In said program, the angle between the tube wall tangent line of the nozzle involute outlet and the burning tube wall is α, The angular range of α is 20 °~30 °.
In said program, the temperature sensor is thermocouple temperature sensor.
Advantages of the present invention:
1, for the present invention using the method automatically controlled, the temperature sensor acquires the letter of the temperature level in the combustion tube Number, and temperature level signal is transmitted to the controller, the controller controls the combustion according to the temperature level signal The aperture of tracheae automatic regulating valve, makes combustion gas fully burn, and rationally utilizes.
2, nozzle of the present invention is streamlined, using the method with jet stream air inducing, it is possible to reduce kinetic energy rejection prevents combustion gas from returning Stream is, it can be achieved that automatic Air Adjusting, makes combustion gas make full use of;As a result of air inducing mode, combustion fan is eliminated, electricity has both been saved Consumption, and reduce equipment investment.
3, the outlet of nozzle of the present invention is involute structure, is matched with the arc path transfer valve body, which makes Air-flow reduces kinetic energy rejection, ensure that the impact force of flame at streamlined.
4, due to the combustion gas difference that different steel mills uses, the air-fuel ratio of different combustion gas is also different, therefore, present apparatus design Automatic control and adjustment valve according to the dosage of combustion gas and air automatically controls the automatic adjustment valve by the controller The size of opening rationally controls air-fuel ratio, can achieve the purpose that so energy saving.
5, the method that the present invention uses internal combustion, makes flame just have begun to burn inside combustion tube, and tube wall is made to improve temperature Degree, causes a kind of hot environment, the chemical reaction of combustion gas is made to accelerate, and also just solves the problems, such as that cutoff is flame-out.
6, the angle between the tube wall tangent line and the tube wall of the combustion tube of nozzle involute outlet of the present invention is α, α Angular range be 20 °~30 °, make the angular range that the jet direction of combustion gas intersects with the tube wall of the combustion tube for 20 °~ Between 30 °, the negative pressure that air-flow generates at this time is most apparent, drives combustion air to pass through combustion gas air curtain, burning is sufficiently mixed with it, passes through Testing inspection, discard in carbon monoxide content be less than 1.5ppm, effect on environment is minimum, and averagely save fuel 30% with On, baking time shortens 25% or so, is a kind of ideal apparatus for baking.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
In figure:1, combustion tube;2, nozzle;3, path transfer valve hand wheel;4, path transfer valve operating rod;5, air hose;6, Gas Pipe;7, Arc path transfer valve body;8, annular space A;9, automatic ignition device;10, Gas Pipe automatic regulating valve;11, temperature sensor;12, Controller;13, annular space B.
Specific implementation mode
Invention is further described in detail for specific implementation mode below in conjunction with the accompanying drawings, but protection scope of the present invention is simultaneously It is without being limited thereto.
Fig. 1 show a kind of embodiment of the Novel burner nozzle of the present invention with arc body fluidic device, the band arc The Novel burner nozzle of body fluidic device includes combustion tube 1, nozzle 2, arc body fluidic device, air hose 5, Gas Pipe 6, automatic point Fiery device 9 and controller 12.
The nozzle 2 is the streamlined cavity body structure equipped with inlet and outlet, the import of the nozzle 2 and the Gas Pipe 6 are fixedly connected, and the outlet of the nozzle 2 extends in the rear end of the combustion tube 1, and the front end of the combustion tube 1 goes out for flame Mouthful;The outlet of the nozzle 2 is bore involute structure.The nozzle 2 be it is streamlined, can using the method with jet stream air inducing To reduce kinetic energy rejection, fuel gas return-flow is prevented, it can be achieved that automatic Air Adjusting, makes combustion gas make full use of;As a result of air inducing mode, Combustion fan is eliminated, has not only saved power consumption, but also reduce equipment investment.
The arc body fluidic device includes path transfer valve hand wheel 3, path transfer valve operating rod 4 and arc path transfer valve body 7;Arc tune Diameter valve body 7 is located at the exit of the nozzle 2, and the bottom end of the path transfer valve operating rod 4 is fixed with the arc path transfer valve body 7 to be connected It connects, top is pierced by the nozzle 2 and is fixedly connected with the path transfer valve hand wheel 3, and the path transfer valve operating rod 4 connects with the nozzle 2 Tactile partial threads connection.By the rotation path transfer valve hand wheel 3, the arc body path transfer valve 7 can be made to rise or fall, from And control the speed that air-flow is sprayed by the nozzle 2.The outlet of the nozzle 2 is involute structure, with the arc path transfer valve Mates, the structure make air-flow reduce kinetic energy rejection, ensure that the impact force of flame at streamlined.
The air hose 5 is sleeved on outside the rear end of the combustion tube 1, and the upper end of the air hose 5 is outer with the nozzle 2 Portion is fixedly connected, and lower end is connect with 1 external stability of the combustion tube, the outer tube of the air hose 5 inner tubal wall and the combustion tube 1 It is formed between wall and forms annular space B13 between annular space A8,1 inner tubal wall of the combustion tube and the outer tube wall of the nozzle 2, The annular space A8 is connected with the annular space B13, when the combustion gas of high speed enters the combustion tube 1 from the nozzle 2 When, it forms powerful negative pressure and combustion air is promoted to enter the combustion through the annular space A8 and annular space B13 successively It burns pipe 1 and participates in burning, the entrance for automatically controlling combustion-supporting air quantity can be reached by the flow of control combustion gas in this way, make its guarantor It holds rational ratio to burn, ensure that the abundant progress of burning.
The Gas Pipe 6 is equipped with Gas Pipe automatic regulating valve 10;Temperature sensor 11 is additionally provided in the combustion tube 1, The temperature sensor 11 is located at the exit of the nozzle 2;The temperature sensor 11 is thermocouple temperature sensor.
The controller 12 is electrically connected with the Gas Pipe automatic regulating valve 10 and temperature sensor 11 respectively;The temperature Sensor 11 is used to acquire the temperature level signal in the combustion tube 1, and temperature level signal is transmitted to the controller 12, the controller 12 controls the aperture of the Gas Pipe automatic regulating valve 10 according to the temperature level signal.When the temperature When degree sensor 11 detects that the temperature in the combustion tube 1 increases, the controller 12 turns the Gas Pipe automatic adjustment down The aperture of valve 10, when the temperature sensor 11 detects that the temperature in the combustion tube 1 reduces, the controller 12 is adjusted The aperture of the big Gas Pipe automatic regulating valve 10, makes the combustion tube 1 keep a lasting thermal-flame, realizes automatic control System, makes coal gas fully burn, and rationally utilizes.
The automatic ignition device 9 is fixedly mounted in the combustion tube 1, and the automatic ignition device 9 is located at the spray 2 exit of mouth;The controller 12 is electrically connected with the automatic ignition device 9, and the automatic point is controlled by the controller 12 Fiery device 9 is lighted a fire, safer.
The length of the combustion tube 1 is more than 2 times that the nozzle 2 is located at 1 inner length of the combustion tube, can guarantee flame Start to burn in the combustion tube 1, and there are enough space injection air.Using the method for internal combustion, make flame described 1 inside of combustion tube just has begun to burn, and so that tube wall is improved temperature, causes a kind of hot environment, the chemical reaction of combustion gas is made to add Soon, also just solve the problems, such as that cutoff is flame-out.
Angle between the tube wall tangent line and the tube wall of the combustion tube 1 of the outlet of 2 involute of the nozzle is sharp angle α, excellent Choosing, the angular range of α is 20 °~30 °, makes the angular range that the jet direction of combustion gas intersects with the tube wall of the combustion tube be Between 20 °~30 °, the negative pressure that air-flow generates at this time is most apparent, drives combustion air to pass through combustion gas air curtain, combustion is sufficiently mixed with it It burns.
It is toasted and is kept the temperature present invention is mainly used for the ladle to steel mill.The present invention passes through the arc path transfer body valve The jet direction that combustion gas is changed with the structure design of nozzle involute outlet generates closed air curtain, jet stream side in jet orifice To the angular range intersected with the tube wall of the combustion tube be 20 °~30 ° between, at this time air-flow generate negative pressure it is most apparent, band The combustion air moved in the air hose 5 passes through combustion gas air curtain, and burning is sufficiently mixed with combustion gas, and the flue gas of completely burned is from burner The speed of interior ejection is high, and high-temperature flue gas is sprayed into very high speed in ladle, just enhances flue gas recirculation and heat transfer in ladle packet, To accelerate ladle baking heating rate, heating time is shortened.Solve traditional burner flame impact force difference, heating time Long problem.After testing, the carbon monoxide content in discarding is less than 1.5ppm, and effect on environment is minimum, average to save combustion 30% or more material, baking time shorten 25% or so, are a kind of ideal apparatus for baking.
During it not only solves current ladle baking, the blast furnace gas of low heating value is not easy the point under normal temperature state The problems such as combustion is easy the problem of cutoff is extinguished, and solves flame and be short of power, and resistance is big, and gas-fired is incomplete, has It is reasonable for structure, it is easy to use, combustion gas can rationally be mixed in proportion with combustion air, lights and protect automatically under normal temperature state The advantages that holding completely burned.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace Or modification all belongs to the scope of protection of the present invention.

Claims (2)

1. a kind of burner with arc body fluidic device, which is characterized in that including combustion tube (1), nozzle (2), arc body jet stream Device, air hose (5), Gas Pipe (6), temperature sensor (11) and controller (12);
The nozzle (2) is the streamlined cavity body structure equipped with inlet and outlet, import and the Gas Pipe of the nozzle (2) (6) it is fixedly connected, the outlet of the nozzle (2) extends in the rear end of the combustion tube (1), the front end of the combustion tube (1) For flame export;The outlet of the nozzle (2) is bore involute structure;
The arc body fluidic device includes path transfer valve hand wheel (3), path transfer valve operating rod (4) and arc path transfer valve body (7);Arc Path transfer valve body (7) is located at the exit of the nozzle (2), bottom end and the arc path transfer valve of the path transfer valve operating rod (4) Body (7) is fixedly connected, and top is pierced by the nozzle (2) and is fixedly connected with the path transfer valve hand wheel (3), the path transfer valve operating rod (4) the partial threads connection contacted with the nozzle (2);
The upper end of the air hose (5) is fixedly connected with the outer wall of the nozzle (2), the rear end of lower end and the combustion tube (1) Outer wall is fixedly connected, between air hose (5) inner tubal wall and the outer tube wall of the combustion tube (1) formed annular space A (8), Annular space B (13), the annular space A are formed between combustion tube (1) inner tubal wall and the outer tube wall of the nozzle (2) (8) it is connected with the annular space B (13);
The Gas Pipe (6) is equipped with Gas Pipe automatic regulating valve (10);The temperature sensor (11) is located at the nozzle (2) Exit;
The controller (12) is electrically connected with the Gas Pipe automatic regulating valve (10) and temperature sensor (11) respectively;
The temperature sensor (11) is used to acquire the temperature signal in the combustion tube (1), and temperature signal is transmitted to institute Controller (12) is stated, the controller (12) controls opening for Gas Pipe automatic regulating valve (10) according to the temperature signal Degree;
The length of the combustion tube (1) is more than 2 times that the nozzle (2) is located at the combustion tube (1) inner length;
Angle between the tube wall tangent line and the combustion tube (1) tube wall of nozzle (2) the involute outlet is α, the angle model of α Enclose is 20 °~30 °;
Automatic ignition device (9) is also fixedly mounted in the combustion tube (1);The automatic ignition device (9) is located at the nozzle (2) exit;
The controller (12) is electrically connected with the automatic ignition device (9), and the controller (12) controls the automatic ignition Device (9) is lighted a fire.
2. the burner according to claim 1 with arc body fluidic device, which is characterized in that the temperature sensor (11) For thermocouple temperature sensor.
CN201510856610.6A 2015-11-30 2015-11-30 A kind of burner with arc body fluidic device Active CN105509052B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201510856610.6A CN105509052B (en) 2015-11-30 2015-11-30 A kind of burner with arc body fluidic device

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CN105509052A CN105509052A (en) 2016-04-20
CN105509052B true CN105509052B (en) 2018-11-09

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111664471A (en) * 2020-07-07 2020-09-15 兖矿集团有限公司 Indirect ignition preheating system
CN112696672A (en) * 2020-12-25 2021-04-23 清华大学 Combustion tube and low-nitrogen combustor with same

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Publication number Priority date Publication date Assignee Title
CN1098489A (en) * 1994-07-01 1995-02-08 浙江大学 Coal-powder boiler adjustable concentration low load automatic stable burning and slag-bonding protective device
CN1100790A (en) * 1993-09-22 1995-03-29 里克博士工业热工技术有限公司 Gas burner
CN2474535Y (en) * 2001-03-30 2002-01-30 中国科学院化工冶金研究所 Tetra coproduction device of cyclic fluidized hydrocarbon solid fuel
CN201059561Y (en) * 2007-06-28 2008-05-14 王志祥 Coal gas and combustion air double regulated internal-burning type gas burner
CN201242185Y (en) * 2008-05-14 2009-05-20 钟木浪 Flared fire-collecting barrel combined type gas furnace for cooking
CN101539292A (en) * 2009-03-17 2009-09-23 西安交通大学 Adjustable type petroleum coke powder strengthening and burning device
CN202024324U (en) * 2011-04-12 2011-11-02 关宏伟 Powder fuel combustor
CN102425793A (en) * 2011-10-19 2012-04-25 中国科学院广州能源研究所 Self-backheating swirling burner for fuel gas with low heat value
CN103816801A (en) * 2014-03-03 2014-05-28 东南大学 Eddy-current opposite-impacting type gas mixer arranged in gas passage

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Publication number Priority date Publication date Assignee Title
CN1100790A (en) * 1993-09-22 1995-03-29 里克博士工业热工技术有限公司 Gas burner
CN1098489A (en) * 1994-07-01 1995-02-08 浙江大学 Coal-powder boiler adjustable concentration low load automatic stable burning and slag-bonding protective device
CN2474535Y (en) * 2001-03-30 2002-01-30 中国科学院化工冶金研究所 Tetra coproduction device of cyclic fluidized hydrocarbon solid fuel
CN201059561Y (en) * 2007-06-28 2008-05-14 王志祥 Coal gas and combustion air double regulated internal-burning type gas burner
CN201242185Y (en) * 2008-05-14 2009-05-20 钟木浪 Flared fire-collecting barrel combined type gas furnace for cooking
CN101539292A (en) * 2009-03-17 2009-09-23 西安交通大学 Adjustable type petroleum coke powder strengthening and burning device
CN202024324U (en) * 2011-04-12 2011-11-02 关宏伟 Powder fuel combustor
CN102425793A (en) * 2011-10-19 2012-04-25 中国科学院广州能源研究所 Self-backheating swirling burner for fuel gas with low heat value
CN103816801A (en) * 2014-03-03 2014-05-28 东南大学 Eddy-current opposite-impacting type gas mixer arranged in gas passage

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