CN101749701A - Diffusion combustion burner - Google Patents

Diffusion combustion burner Download PDF

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Publication number
CN101749701A
CN101749701A CN200910224981A CN200910224981A CN101749701A CN 101749701 A CN101749701 A CN 101749701A CN 200910224981 A CN200910224981 A CN 200910224981A CN 200910224981 A CN200910224981 A CN 200910224981A CN 101749701 A CN101749701 A CN 101749701A
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CN
China
Prior art keywords
air
primary
primary air
diffusion combustion
combustion burner
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Application number
CN200910224981A
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Chinese (zh)
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CN101749701B (en
Inventor
河本祐作
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Chugai Ro Co Ltd
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Chugai Ro Co Ltd
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Publication of CN101749701A publication Critical patent/CN101749701A/en
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Publication of CN101749701B publication Critical patent/CN101749701B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/02—Combustion apparatus using liquid fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Abstract

The present invention provides a diffusion combustion burner which can use liquid fuel. The diffusion combustion burner (1) according to the invention comprises the following components: a primary combustion chamber (4) which has an opening that faces a main combustion chamber (2); a combustion guiding nozzle (5) which is provided at the primary combustion chamber (4); a fuel nozzle (6) which injects fuel to the primary combustion chamber (4); a primary air supply path (7) which supplies primary air around the fuel nozzle (6) along the fuel nozzle (6); and a secondary air supply path (8) which injects secondary air next to the primary combustion chamber (4) into the main combustion chamber (2). The diffusion combustion burner (1) is provided with a primary air ration adjusting device which adjusts the ratio of the primary air relatively to the total amount of the primary air and the secondary air, namely the primary air ratio, to a higher value when the temperature of the main combustion chamber is lower, and adjusts the ratio to a lower value when the temperature of the main combustion chamber is higher.

Description

Diffusion combustion burner
Technical field
The present invention relates to a kind of diffusion combustion burner.
Background technology
Disclosed a kind of diffusion combustion burner in the patent documentation 1, it is in combustion chamber inner direct fuel and air and the diffusion combustion burner that makes it to burn, to towards the main chamber opening and be provided with primary zone's direct fuel injection and the primary air of pilot burner (pilot burner), from spraying auxiliary air to main chamber near the primary zone.
In addition, disclosed a kind of diffusion combustion burner in the patent documentation 2, the supply road of its auxiliary air and the discharge road alternation of exhaust gas (alternating operation), and be equipped with heat storage respectively.
The diffusion combustion burner of above-mentioned accumulation of heat alternative expression (regenerative type) acts as a fuel to gas and has practicality, but still impracticable to liquid fuel.Especially, the burner capacious demand in the use that acts as a fuel with heavy oil of burning is very big.But, the fuel that is ejected is temporarily vaporized, therefore, particularly when low temperature, fluent material can be lighted a fire slow and burning rapidly, and unfavorable conditions such as imperfect combustion and carbon adhere on furnace wall (furnace wall) (particularly primary combustion chamber interior walls) take place.
Patent documentation 1: the special fair 8-26970 communique of Japan Patent
Patent documentation 2: the Japan Patent spy opens the 2007-24335 communique
Summary of the invention
In view of the above problems, the present invention is to provide a kind of diffusion combustion burner of liquid fuel that can use as problem.
For solving above-mentioned problem, diffusion combustion burner of the present invention has: the primary zone, and it is to the main chamber opening; Pilot burner, it is located at above-mentioned primary zone; Fuel nozzle, it is to above-mentioned primary zone burner oil; Primary air is supplied with the road, and it supplies with primary air along above-mentioned fuel nozzle around above-mentioned fuel nozzle; Auxiliary air is supplied with the road, and it sprays auxiliary air near the of above-mentioned primary zone in above-mentioned main chamber; Primary air is than adjusting device, its with above-mentioned primary air with respect to the ratio of the total amount of above-mentioned primary air and auxiliary air, be primary air than when the temperature of above-mentioned main chamber is low, heightening, when the temperature of above-mentioned main chamber is higher, turn down.
According to said structure, when low temperature, heighten the primary air ratio, the fuel that is ejected is impaled with primary air, thereby the fuel deposition that prevents incomplete combustion particularly prevents to adhere to carbon on the inwall of primary zone on the furnace wall.In addition, when the high temperature of easy vaporization of fuel and burning easily, turn down the primary air ratio, thereby can reduce NO x
In addition, diffusion combustion burner of the present invention is if also have the air-flow revolving gear that above-mentioned primary air is circled round around above-mentioned fuel nozzle, then gyration airflow can become gas curtain (air curtain) and fuel is wrapped into, and therefore can improve the effect that anti-blocking adheres on the inwall of above-mentioned primary zone.
In addition, in the diffusion combustion burner of the present invention,, comparatively it is desirable to be made as more than 10%, can prevent effectively that then blocking adheres on the inwall of above-mentioned primary zone if the above-mentioned primary air ratio with the temperature of above-mentioned main chamber when low is made as more than 5%.In addition, by above-mentioned primary air ratio is made as below 40%, can be with NO xGeneration be suppressed in the prescribed limit of the decree relevant with industrial furnace.
In addition, in the diffusion combustion burner of the present invention,, then can obtain sufficient NO if the above-mentioned primary air ratio during above-mentioned main chamber high than temperature is below 10% xSuppress effect.
In addition, in the diffusion combustion burner of the present invention, if alternately be also used as the stream that the exhaust of burning gases uses and a plurality of above-mentioned auxiliary airs are set supply with the road, and import above-mentioned auxiliary air by heat storage to above-mentioned auxiliary air supply road respectively, then can therefore can improve the thermal efficiency by the heat that in heat storage, reclaims from exhaust gas with above-mentioned auxiliary air preheating.And, when the temperature of above-mentioned main chamber is higher,, therefore can further improve the thermal efficiency owing to turn down the ratio that above-mentioned primary air recently improves auxiliary air.
As mentioned above, in the diffusion combustion burner of the present invention, when the temperature of main chamber is low, by heightening the primary air ratio, primary air becomes gas curtain, and the fuel deposition that can prevent to be ejected is on the inwall of primary zone, and the main chamber temperature is turned down primary air and is recently suppressed NO when higher x, and the heat recovery efficiency of raising heat storage.
Description of drawings
Fig. 1 is the cutaway view of structure of the diffusion combustion burner of expression an embodiment of the present invention.
Fig. 2 be in the diffusion combustion burner of presentation graphs 1 primary air than and NO xThe curve map of the relation between the concentration.
(symbol description)
1 diffusion combustion burner
2 main chambers
3 furnace walls
4 primary zones
5 pilot burners
6 fuel nozzles
7 primary airs are supplied with the road
8 auxiliary airs are supplied with the road
9 heat storages
10 storage heaters
11 wings (air-flow revolving gear) that circle round
12 air blasts
The 13 main air doors of supplying with
14 increments are supplied with air door
15 Temperature Detectors
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.Fig. 1 represents the diffusion combustion burner 1 of an embodiment of the present invention.Diffusion combustion burner 1 is formed at the furnace wall 3 of delimiting main chamber 2.Diffusion combustion burner 1 has: primary zone 4, and it is formed by the recess that forms on furnace wall 3 in main chamber 2 upper sheds; Pilot burner 5, it forms the flame as incendiary source in primary zone 4; Fuel nozzle 6, it is by primary zone 4 burner oil in main chamber 2; Primary air is supplied with road 7, and its pipe by the outside that is flush-mounted in fuel nozzle 6 forms, and supplies with primary air around fuel nozzle 6; A plurality of auxiliary airs are supplied with road 8 (only illustrating), its can be from the primary zone near 4 to main chamber 2 in the injection auxiliary airs; A plurality of storage heaters 10 (only illustrating one), it has heat storage 9 respectively, supplies with road 8 with auxiliary air and is communicated with, and can supply with road 8 feeding secondary airs to auxiliary air by heat storage 9.
An auxiliary air supply road 8 and a storage heater 10 are a cover, have at least a cover to use as the air-breathing road of auxiliary air in order, and other have the exhaust line use of a cover as burning and gas-exhausting at least simultaneously.When heat storage 9 uses as exhaust line, play the effect of the heat energy that reclaims burning and gas-exhausting, when using, play the effect of preheating auxiliary air as the air-breathing road of auxiliary air.
In the present embodiment, to fuel nozzle 6 feed fluid fuel (for example heavy oil) be used for the spray air of spraying liquid fuel, but can not use spray air yet and the liquid fuel high pressure is sprayed.In addition, primary air is supplied with road 7 and is comprised be used to the wing 11 that circles round that primary air is circled round around fuel nozzle 6.
In the diffusion combustion burner 1, supply with basis by air blast 12 and realize the combustion air of the flow of only air-fuel ratio, and distribute to primary air and supply with road 7 and regenerator 10 from the fuel quantity that fuel nozzle 6 sprays.In the stream of supplying with primary air, be arranged side by side main air door (damper) 13 of supply and increment and supplied with air door 14.In the diffusion combustion burner 1, be designed to: if the only open main air door 13 of supplying with, then 5% of combustion air total amount is imported primary air as primary air and supply with road 7, if open simultaneously main air door 13 and the increment supply air door 14 supplied with then imports primary air with 10% of combustion air total amount as primary air and supplies with road 7.
In addition, diffusion combustion burner 1 has the Temperature Detector 15 of measuring the temperature in the main chamber 2, and in burning was carried out, the detected temperatures of Temperature Detector 15 was supplied with air door 14 sealings with increment during for the setting value of regulation, for example more than 800 ℃.In other words, in the diffusion combustion burner 1, primary air being set at higher 10% with respect to the ratio of the total amount of primary air and auxiliary air, when be primary air than the temperature at main chamber 2 being the low temperature of 800 ℃ of less thaies, is then to be set at 5% lower (primary air is than adjusting device) more than 800 ℃ the time in the temperature of main chamber 2.
Represent among Fig. 2 be diffusion combustion burner 1 primary air than with burning and gas-exhausting in NO xRelation between concentration.As shown in the figure, primary air is than high more then NO xConcentration is high more, and this pass ties up to uses in the fluid combustion device to known to general.And, surpass 40% as if the primary air ratio, then NO xConcentration can sharply increase.In addition, the NO in the general exhaust gas xConcentration is limited by decree.For example, in the decree of Japan, for industrial furnace, be converted into oxygen concentration 11% value on be limited to 120～150ppm, therefore, as the product specification of industrial furnace, being that the upper limit is comparatively suitable about 100ppm.Therefore, the primary air ratio should be below 40% in the diffusion combustion burner 1 of the present invention.In addition, if the primary air ratio is below 10%, then can fully reduce the NO in the exhaust gas xConcentration is from NO xConcentration is very safe.
Then, in the table 1 expression be the result of the variation of the carbon attachment state on the inwall of primary zone 4 of the diffusion combustion burner 1 of confirming that at normal temperatures the difference owing to the primary air ratio causes.In the table, usefulness * expression when obviously being attached with carbon on the inwall of primary zone 4 is represented with △ in the time of confirming to have slightly blackout, does not represent with zero when having stain fully.In addition, for this experiment, main supply air door 13 and increment are supplied with air door 14 and suitably are replaced with suitable capacity.
Table 1
Primary air is than (%) ??3 ??5 ??7 ??10 ??15 ??20
The carbon attachment state ??× ??△ ??△ ??○ ??○ ??○
As top, in the diffusion combustion burner 1, if the primary air ratio is more than 10%, then can not produce carbon at normal temperatures, can obtain good fired state.In addition, even primary air is than less than 10%, also can obtain good burning according to the temperature in the main chamber 2 and the temperature conditions of extraneous gas (combustion air),, then confirm to prevent obviously to produce the imperfect combustion of black smoke etc. if the primary air ratio is more than 5%.Therefore, in the diffusion combustion burner 1, when normal temperature,, then still on imperfect combustion, can not have problems on the decree if the primary air ratio is more than 5%, below 40%.
And, table 2 expression be the variation of the carbon attachment state that causes owing to the difference of primary air ratio when being 800 ℃ of the temperature of main chamber 2.
Table 2
Primary air is than (%) ??3 ??4 ??5 ??6 ??7
The carbon attachment state ??× ??△ ??○ ??○ ??○
As top, in the diffusion combustion burner 1, when the temperature of main chamber 2 is higher, though with primary air than being reduced to 5% generation that also can not find carbon.
Consider above burning condition, in the diffusion combustion burner 1, in order to reduce NO as much as possible xConcentration also obtains desirable burning, as previously explained, primary air than being made as 10% when the low temperature, is made as 5% when high temperature.By this,, can not smolder and carbon adheres on the furnace wall yet, can obtain good burning even diffusion combustion burner 1 uses the liquid burning, can be with NO xGeneration be controlled at bottom line.
This be because: a large amount of unburned fuels that produce and imperfect combustion thing (CO) wraps into primary air in 4 inside, primary zone and the inner importing of flame that forms to main chamber 2 in by with low temperature the time can prevent that it from adhering to the form of carbon or become cigarette in the burning and gas-exhausting gas on the inner surface of the inner surface of furnace wall 3, especially primary zone 4.In order to bring the effect of above-mentioned gas curtain, among the present invention, particularly when low temperature, effectively the wing 11 grades of circling round by present embodiment are supplied with the primary combustion air with circling round around fuel nozzle 6.
In addition, reduce primary air than improving auxiliary air by heat storage 9 supplies with respect to the ratio of combustion air total amount.Therefore, reduce the primary air ratio as much as possible and can also improve the thermal efficiency.For example, if the primary air ratio is below 40%, then diffusion combustion burner 1 will have superiority than the burner that comprises recuperator (recuperator) (burner) etc., can obtain the high thermal efficiency as the heat storage type combustion apparatus.
In addition, in the diffusion combustion burner 1, also can with fuel nozzle 6 or its front tube be changed to the device that is suitable for gaseous fuels such as LNG first watch, so that can using gases fuel.
In addition, in the above-mentioned embodiment, whether be more than 800 ℃ the primary air ratio to be set at 5% and 10% according to the temperature of main chamber 2, but also can use the air door that to regulate aperture, promote the primary air ratio at leisure along with the temperature of main chamber 2 rises.
In addition, in the above-mentioned embodiment, adjust primary air than the time the threshold value of temperature of main chamber 2 be 800 ℃, but the said temperature setting value also can be the temperature of the liquid fuel spontaneous combustion that is ejected usually.
And in the above-mentioned embodiment, primary air is set at 10% than when low temperature, is set at 5% during high temperature, but this is an example, and in other embodiments, according to its burner, optimal primary air is more different than possibility.Therefore, the primary air of the primary air when the invention is intended to high temperature when being made as than low temperature is than low value, and its value also can be different from the embodiment described above.

Claims (6)

1. diffusion combustion burner is characterized in that having:
The primary zone, this primary zone is to the main chamber opening;
Pilot burner, this pilot burner is located at described primary zone;
Fuel nozzle, this fuel nozzle is to described primary zone burner oil;
Primary air is supplied with the road, and this primary air is supplied with the road and supply with primary air along described fuel nozzle around described fuel nozzle;
Auxiliary air is supplied with the road, and this auxiliary air is supplied with the road and sprayed auxiliary air near the of described primary zone in described main chamber; And
Primary air compares adjusting device, this primary air than adjusting device with described primary air with respect to the ratio of the total amount of described primary air and described auxiliary air, be primary air than when the temperature of described main chamber is low, heightening, and when the temperature of described main chamber is higher, turn down.
2. diffusion combustion burner as claimed in claim 1 is characterized in that, also has the air-flow revolving gear, and this air-flow revolving gear circles round described primary air around described fuel nozzle.
3. diffusion combustion burner as claimed in claim 1 or 2 is characterized in that, the described primary air ratio the when temperature of described main chamber is low is more than 5%, below 40%.
4. diffusion combustion burner as claimed in claim 3 is characterized in that, the described primary air ratio the when temperature of described main chamber is low is more than 10%.
5. as each described diffusion combustion burner in the claim 1 to 4, it is characterized in that the described primary air ratio the when temperature of described main chamber is higher is below 10%.
6. as each described diffusion combustion burner in the claim 1 to 5, it is characterized in that, the stream of using for the exhaust that alternately is also used as burning gases and be provided with a plurality of described auxiliary airs and supply with the road, and supply with the road by heat storage to described auxiliary air respectively and import described auxiliary air.
CN2009102249817A 2008-11-27 2009-11-23 Diffusion combustion burner Active CN101749701B (en)

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JP2008-302581 2008-11-27
JP2008302581A JP4750174B2 (en) 2008-11-27 2008-11-27 Diffusion combustion equipment

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CN101749701B CN101749701B (en) 2013-06-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5752156B2 (en) * 2013-01-29 2015-07-22 中外炉工業株式会社 Combustion control method for combustion apparatus
JP6384881B2 (en) * 2017-02-20 2018-09-05 中外炉工業株式会社 Regenerative burner equipment
JP6448679B2 (en) * 2017-02-20 2019-01-09 中外炉工業株式会社 Regenerative burner equipment
JP7410642B2 (en) 2018-12-06 2024-01-10 株式会社セイブ・ザ・プラネット special burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10132259A (en) * 1996-10-25 1998-05-22 Nippon Furnace Kogyo Kaisha Ltd Heat storage combustion burner device
JP2000039143A (en) * 1998-07-24 2000-02-08 Nkk Corp Combustion control method of heat storage type burner device and burner device therefor
JP2005055036A (en) * 2003-08-01 2005-03-03 Sumikin Manegement Co Ltd Heat storage type burner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214625B (en) * 1987-12-24 1992-01-02 British Steel Plc Regenerative burner system
JPH0826970B2 (en) * 1993-08-18 1996-03-21 中外炉工業株式会社 Two-stage combustion burner
JP3182046B2 (en) * 1994-07-27 2001-07-03 中外炉工業株式会社 Method and apparatus for operating regenerative heat storage combustion system
US20020072020A1 (en) * 2000-10-16 2002-06-13 Crane John J. Regnerative burner
US6616442B2 (en) * 2000-11-30 2003-09-09 John Zink Company, Llc Low NOx premix burner apparatus and methods
EP1812752B1 (en) * 2004-11-04 2016-04-20 Novelis, Inc. Apparatus and method for cleaning regenerative-burner media bed
TWI299077B (en) * 2005-11-22 2008-07-21 Clean Comb Technologies Llc Combustion method and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10132259A (en) * 1996-10-25 1998-05-22 Nippon Furnace Kogyo Kaisha Ltd Heat storage combustion burner device
JP2000039143A (en) * 1998-07-24 2000-02-08 Nkk Corp Combustion control method of heat storage type burner device and burner device therefor
JP2005055036A (en) * 2003-08-01 2005-03-03 Sumikin Manegement Co Ltd Heat storage type burner

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JP4750174B2 (en) 2011-08-17
JP2010127525A (en) 2010-06-10
TWI384184B (en) 2013-02-01
TW201020475A (en) 2010-06-01
CN101749701B (en) 2013-06-12
KR20100061322A (en) 2010-06-07
KR101154558B1 (en) 2012-06-11

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