CN206600801U - A kind of fractional combustion thermal-storage burning device utilizing radiant tube - Google Patents
A kind of fractional combustion thermal-storage burning device utilizing radiant tube Download PDFInfo
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- CN206600801U CN206600801U CN201621384043.5U CN201621384043U CN206600801U CN 206600801 U CN206600801 U CN 206600801U CN 201621384043 U CN201621384043 U CN 201621384043U CN 206600801 U CN206600801 U CN 206600801U
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- 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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Abstract
The utility model provides a kind of fractional combustion thermal-storage burning device utilizing radiant tube, including：Single heat storage type burner, body of heater, at least three radiant tubes, igniter burner, igniter burner sleeve pipe, at least two combustion chambers, four-way valve and radiant tube adpting flange；The air single heat accumulating type burner includes：Cover plate, body of air, heat-insulation layer, heat storage, burner block, gas pipe, air nozzle brick, First air airport, coal gas connection flame branch mouthful, air connection flame branch mouthful, a gas port, secondary air cyclone, secondary gas port, coal gas flame tube interconnector, secondary gas pipe.The apparatus structure is simple, it is easy to operate, it disclosure satisfy that the temperature requirement in radiant tube burner different application field, increase the uniformity of radiant tube internal temperature simultaneously, effective Mist heat recovering, fractional combustion reduces the discharge of NOx in flue gas, saves the input of the related corollary equipment such as radiant tube burner and igniter burner, has simplified system.
Description
Technical field
The utility model belongs to regenerator gas field of combustion technology, and in particular to one kind is using the flat flame classification combustion of branch pipe
The multitubular bundles integrated form radiant tube combustion device of burning.
Background technology
Gas fired radiant tubes, mainly using coal gas as fuel, in special sealing shroud combustion inner pipe, passes through heated sleeve surface
Heating object is transferred heat in the form of heat radiation, combustion product is not contacted with heating object；Regenerative gas spoke
Pipe is penetrated by the setting of heat storage using the sensible heat of flue gas after combustion inner pipe is covered come warm-up combustion-supporting air or combustion gas, with the combustion heat
Efficiency high, the features such as stable, equipment dependability is high, it is widely used in various heat-treatment furnaces and continuous annealing furnace etc..According to
The own characteristic of radiant tube burner is combined developed heat accumulating type multitubular bundles radiant tube combustion with regenerative combustion technology
Burn device to arise at the historic moment, heat accumulating type multitubular bundles radiant tube combustion device, which has, meets efficient, energy-saving and environmental protection regenerative combustion technology
There is more efficient integration, radiant power is high, and temperature is more uniform, and its structure is simpler while advantage, install, debug
More facilitate with maintenance.
Due to gas fired radiant tubes in course of normal operation, it is necessary to configure corresponding reversing control system and device.With
The extensive use of engineering project a, heat-treatment furnace need to be equipped with tens or even hundreds of radiant tube burners, be fired with heat accumulating type
Exemplified by gas radiant tube, the quantity and igniter burner and corresponding Iganition control system that need to configure radiant tube burner complement one another,
System is very huge, and artificial cumbersome, cost is high.Utility model if notification number is CN 203231301U discloses one kind
Regenerative radiant tube burner, including two gas flow pipes, burner housing, gas-jet tube, two thermals, high temperature resistant sprays
Mouth and high-temperature resistant radiation pipe, the burner can effectively carry out accumulation of heat circulation provided with two thermals, improve efficiency of combustion
On the basis of energy-conserving and environment-protective.But there is following technological deficiency in above-mentioned patent：1）The regenerative radiant tube burner is only applicable to rule
The less type of furnace of mould yield, by taking vertical pyrolysis oven as an example, 300-600 radiant tube of the type of furnace, not only installation difficulty is big, space office
Promote, debugging and maintenance difficulty is more difficult to imagine.2）Penetrate pipe burner using the heat accumulating type makes because flame burns in radiant tube
Obtain the temperature of radiant tube in the axial direction to be extremely difficult to uniformly, localized hyperthermia's degree situation equally restrains the use of this kind of radiant tube
Scope.3）The ignition system and equipment that the radiant tube is used under the larger operating mode of amount ratio are extremely complex, and cost of investment is very
It is high.Therefore, how to design a kind of temperature requirement for meeting burner different application field, increase the uniform of radiant tube internal temperature
Property, realize fractional combustion to reduce NOx emission in flue gas, the thermal-storage burning device utilizing radiant tube of simple in structure and low in cost turns into
The problem of this area urgent need to resolve.
Utility model content
The utility model in view of the shortcomings of the prior art, designs and develops a kind of fractional combustion heat accumulation type radiant tube burning
Device, it mainly meets the temperature requirement in radiant tube burner different application field, while increasing the equal of radiant tube internal temperature
Even property, significantly more efficient Mist heat recovering, fractional combustion reduces the discharge of NOx in flue gas, saves radiant tube burner
And the input of the related corollary equipment such as igniter burner, simplify system.
In order to solve the above technical problems, the technical solution adopted in the utility model is：The utility model provides a kind of point
Level burning thermal-storage burning device utilizing radiant tube.According to embodiment of the present utility model, including：At least two air single heat accumulating types fire
Burner, body of heater, at least three radiant tubes, igniter burner, igniter burner sleeve pipe, at least two combustion chambers, four-way valve and radiant tube
Adpting flange；The air single heat accumulating type burner includes：Cover plate, body of air, heat-insulation layer, heat storage, burner block, coal gas
Pipe, air nozzle brick, First air airport, coal gas connection flame branch mouthful, air connection flame branch mouthful, a gas port, secondary air
Cyclone, secondary gas port, coal gas flame tube interconnector, secondary gas pipe, wherein：First burner A and the first combustion chamber A is located at institute
State the side of body of heater, the second burner B and the second combustion chamber B are located at the opposite side of the body of heater, the first burner A and the
Two burner B burner block is respectively protruding into the first combustion chamber A and the second combustion chamber B tapping, and into combustion chamber
Extension, the burner block external metallization flanged plate is fastenedly connected with corresponding combustion chamber；The adpting flange of the body of air with
The flange of burner block is fixedly connected, and the cover plate is fastened by bolts with body of air, be divided into inside the body of air to
Few three cavitys, heat-insulation layer is arranged on the inside of body of air, forms at least three individual cavities that heat storage is placed, the storage
Hot body is placed in the inside cavity；The air nozzle brick is connected with burner block, is separated at least inside the burner block
Three cavitys, are connected with least three cavitys divided equally inside the body of air respectively；The air nozzle brick front end is set
There are First air airport described at least three, air described in secondary air cyclone and at least two described at least three to join flame
Branch mouthful, the cener line of at least three cavitys of the secondary air cyclone with being separated into inside the burner block is coaxial
Arrangement, the First air airport is in the underface of the secondary air cyclone, at least two air connection flame branch mouthful
It is arranged between at least three First airs airport；The gas pipe is located in the cavity of the air nozzle brick, is divided into
Two layers up and down, wherein, lower floor be coal gas flame tube interconnector, upper strata be secondary gas pipe, up and down after two layers of parallel connection with branch gas tube road phase
Connection, the coal gas flame tube interconnector is provided with a gas port described at least three and multiple coal gas connection flame branch mouthful, described two
Secondary gas port described at least three is provided with secondary gas pipe, each secondary gas port central axis with it is corresponding secondary
Wind air cyclone axis coaxle arranges that the planar horizontal arrangement that the secondary gas port axis is formed joins with the coal gas
Angle is formed between the plane that all spout axis are formed on flame tube；First, second combustion chamber respectively with described first,
The fastening of second air single heat accumulating type burner is installed, at least three radiant tube adpting flange axis on the combustion chamber respectively with
The axis of the secondary air cyclone on correspondence burner coincides, and the radiant tube prolongs in the inner chamber of the body of heater
Stretch, its one end is connected with the first combustion chamber A radiant tube adpting flange, the other end and the second combustion chamber B radiant tube connection method
Orchid connection.
Inventor has found, according to the fractional combustion thermal-storage burning device utilizing radiant tube of the utility model embodiment, structure letter
It is single, it is easy to operate, the temperature requirement in radiant tube burner different application field is disclosure satisfy that, while increasing radiant tube internal temperature
Uniformity, effective Mist heat recovering, fractional combustion reduces the discharge of NOx in flue gas, saves radiant tube burner
And the input of the related corollary equipment such as igniter burner, simplify system.
According to embodiment of the present utility model, the metal method of the first burner A and the second burner B body of air
Blue two connectors respectively with the four-way valve are attached by the metal flange on pipeline, and other the two of four-way valve (21)
Individual connector is fastened with the metal flange of smoke evacuation house steward and air header respectively.
According to embodiment of the present utility model, burner block external metallization flanged plate is fastened with corresponding combustion chamber using bolt
Connection；The adpting flange of the body of air is fixedly connected with the flange of burner block with bolt；Two other connection of four-way valve
Metal flange of the mouth respectively with smoke evacuation house steward and air header is fastened by bolts；First, second combustion chamber respectively with institute
State first, second air single heat accumulating type burner and be fastened by bolts installation.
According to embodiment of the present utility model, the external diameter of the secondary air cyclone is 60mm, and the First air is empty
The distance of stomata and the secondary air cyclone is 55-65mm；Each air connection flame branch mouthful is arranged in two adjacent one
The centre position of secondary wind airport, each air connection flame branch mouthful draw ratio is 20-25.
According to embodiment of the present utility model, the distance between the coal gas flame tube interconnector and the secondary gas pipe are 55-
65mm；The coal gas flame tube interconnector sets 3 gas ports and 14 coal gas connection flame branch mouthful, a coal gas
Spout latus rectum size is 20-30mm, and every 7 of the coal gas connection flame branch mouthful corresponds to air connection flame branch mouthful for one group, each
The small pitch of holes 25-30mm of branch mouthful, aperture size is 3-5mm, and the latus rectum size of the secondary gas port is 25-35mm, described
The plane that secondary gas port axis is formed is pressed from both sides with the plane that all spout axis are formed on the coal gas flame tube interconnector into 25 °
Angle.
According to embodiment of the present utility model, each combustion chamber is designed with an igniter burner, the igniter burner
It is fastened by bolts with the igniter burner sleeve pipe on installation, the igniter burner and is respectively disposed with cooling of electrode wind interface, point
Fire gas interface and igniting air interface, igniter burner load is 0.5-1kw, and jet size is 40-45mm, combustion flame length
For 150-200mm.
According to embodiment of the present utility model, the igniter burner casing centerline radiates interface tube described at least three
In the plane of flange shaft line formation, and perpendicular to radiant tube flange axis, the igniter burner casing centerline with it is described
The centreline space of coal gas flame tube interconnector and secondary gas pipe is away from 130-150mm.
According to embodiment of the present utility model, the radiant tube horizontal mode is positioned over furnace interior, or vertical point of row
Furnace interior is arranged in, also or in " product " font is arranged.
According to embodiment of the present utility model, valve is provided between the metal flange and the four-way valve, for controlling
The break-make of air in burner；The coal gas flame tube interconnector has cuts valve soon.
According to embodiment of the present utility model, the size of the heat storage is 150x100x100mm, and inner passage uses honeybee
Nest shape aperture, orifice size is 2-4mm, and every piece of heat storage honeycomb aperture is interconnected inside burner.
The beneficial effects of the utility model are：
1）Furnace atmosphere, temperature are than more uniform, and in-furnace temperature is fluctuated at ± 5 DEG C.
2）Because flame burns in radiant tube so that radiant tube surface power is improved.
3）Igniter burner 4, air single regenerative burner 4, and related control device are reduced, cost is greatlyd save.
4）The space required for installation burner is reduced, facilitates the arrangement of process pipeline.
5）Smoke pre-heating is reclaimed to a greater extent, exhaust gas temperature can be controlled in less than 150 DEG C.
6）The content of NOx in flue gas is reduced, control content is in 50-80ppm.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model fractional combustion thermal-storage burning device utilizing radiant tube.
Fig. 2 is the structure chart of the utility model air single heat accumulating type burner.
Fig. 3 for the utility model air single heat accumulating type burner A to sectional view.
Fig. 4 for the utility model air single heat accumulating type burner B to sectional view.
Fig. 5 is the utility model igniter burner structure chart.
Wherein, 1, cover plate；2nd, body of air；3rd, heat-insulation layer；4th, heat storage；5th, burner block；6th, gas pipe；7th, air nozzle
Brick；8th, First air airport；9th, coal gas connection flame branch mouthful；10th, air connection flame branch mouthful；11st, a gas port；
12nd, secondary air cyclone；13rd, secondary air cyclone；14th, coal gas flame tube interconnector；15th, secondary gas pipe；
16th, body of heater；17th, radiant tube；18th, igniter burner；19th, igniter burner sleeve pipe；20th, combustion chamber；21st, four-way valve；22nd, radiant tube connects
Acting flange.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
Document described by technology or condition or carried out according to product description.
According to one side of the present utility model, the utility model burns there is provided a kind of fractional combustion heat accumulation type radiant tube
Device, Fig. 1 is the structure chart of the fractional combustion thermal-storage burning device utilizing radiant tube, as shown in figure 1, burner includes：At least
Two air single heat accumulating type burners, body of heater 16, at least three radiant tubes 17, igniter burner 18, igniter burner sleeve pipe 19, at least
Two combustion chambers 20, four-way valve 21 and radiant tube adpting flange 22；Wherein, two burners and combustion chamber are used as a job note
Member.First burner A and the first combustion chamber A is located at the side of the body of heater, and the second burner B and the second combustion chamber B are located at institute
State the opposite side of body of heater, the first burner A and the second burner B burner block are respectively protruding into the first combustion chamber A
With the second combustion chamber B tapping, and extend into combustion chamber, the burner block external metallization flanged plate and corresponding combustion chamber
It is fastenedly connected；First, second combustion chamber 20 fastens with the first, second air single heat accumulating type burner install respectively,
At least three radiant tube adpting flange axis on the combustion chamber 20 respectively with the secondary air on corresponding burner
The axis of cyclone 12 coincides, and the radiant tube extends in the inner chamber of the body of heater, its one end and the first combustion chamber A spoke
Penetrate pipe adpting flange 22 to connect, the other end is connected with the second combustion chamber B radiant tube adpting flange 22.The first burner A
Two connectors with the metal flange of the second burner B body of air 2 respectively with the four-way valve 21 pass through on pipeline
Metal flange is attached, and the metal flange of two other connector of four-way valve 21 respectively with smoke evacuation house steward and air header is tight
Gu.
During work, first a burner A18 is lighted, after its stable burning, the metal of burner A, B body of air 2 is opened
Flange early gate, now four-way valve 21 work so that burner A air pipe line is connected, while opening coal gas flame tube interconnector 6
Valve is cut soon so that burner A gaspipe line is connected, burner A burnings, flame is propagated into radiant tube 17, passes through burning
Burning in the A20 of room reaches high-temperature flue gas in the B of combustion chamber by radiant tube 17.And burner B is incited somebody to action in the action of four-way valve 21
Smoke-exhaust pipeline is connected, and now whole combustion system is normally run；Burner A, B four-way valve 21 after a working unit time are held
Row inverse operation, makes whole combustion system periodicity reversing combustion.
According to specific embodiment of the utility model, Fig. 2-4 is the structure of the utility model air single heat accumulating type burner
Figure and A are to, to sectional view, as in Figure 2-4, the air single heat accumulating type burner includes with B：Cover plate 1, body of air 2 is protected
Warm layer 3, heat storage 4, burner block 5, gas pipe 6, air nozzle brick 7, First air airport 8, coal gas connection flame branch mouthful 9, air connection
Flame branch mouthful 10, a gas port 11, secondary air cyclone 12, secondary gas port 13, coal gas flame tube interconnector 14, two dants
Tracheae 15, wherein：The adpting flange of the body of air is fixedly connected with the flange of burner block, and the cover plate leads to body of air
Cross inside bolt fastening, the body of air and be divided at least three cavitys, heat-insulation layer is arranged on the inside of body of air, is formed
At least three individual cavities that heat storage is placed, the heat storage is placed in the inside cavity；The air nozzle brick is with burning
Mouth brick is connected, and at least three cavitys are separated into inside the burner block, respectively with dividing equally at least inside the body of air
Three cavitys are connected；The air nozzle brick front end is provided with First air airport described at least three, two described at least three
Described in secondary wind air cyclone and at least two inside air connection flame branch mouthful, the secondary air cyclone and the burner block
The cener line at least three cavitys being separated into is coaxially arranged, and the First air airport is in the secondary air eddy flow
The underface of device, at least two air connection flame branch mouthful is arranged between at least three First airs airport.The coal
Tracheae is located in the cavity of the air nozzle brick, be divided into above and below two layers, wherein, lower floor is coal gas flame tube interconnector, and upper strata is secondary
Gas pipe, is connected after two layers of parallel connection with branch gas tube road up and down, and the coal gas flame tube interconnector is provided with a dant described at least three
Secondary gas port described at least three is provided with gas blowout mouthful and multiple coal gas connection flame branch mouthful, the secondary gas pipe,
Each secondary gas port central axis is arranged with corresponding secondary air cyclone axis coaxle, the secondary gas port
Formed and pressed from both sides between the plane that all spout axis are formed in the planar horizontal arrangement of axis formation and the coal gas flame tube interconnector
Angle.Thus, join flame mode by Flat flame branch pipe to be lighted a fire, also, connection flame shares preheated air with fractional combustion, reduces
NOx content in flue gas.
During burning by igniter burner 18 ignite gas pipe 6 set lower floor's coal gas flame tube interconnector 14, realize one
Secondary stable burning, coal gas carries out second-time burning by secondary gas pipe 15 again, and fractional combustion makes combustion flame localized hyperthermia area's temperature
Degree reduction, while realizing bias combustion by the proportioning of space gas, reduces flame temperature, so as to realize reduction thermal NO x's
Generation, reduces the purpose of pollutant emission.
According to specific embodiment of the utility model, the connected mode between part is not particularly limited, new in this practicality
In some embodiments of type, burner block external metallization flanged plate is adopted with corresponding combustion chamber and is bolted connection；The air
The adpting flange of body is fixedly connected with the flange of burner block 5 with bolt；Two other connector of four-way valve 21 respectively with row
The metal flange of cigarette house steward and air header is fastened by bolts；First, second combustion chamber 20 is respectively with described first,
Two air single heat accumulating type burners are fastened by bolts installation, are achieved in stable and firmly connect.
According to specific embodiment of the utility model, the size and set location of secondary air cyclone are not limited especially
System, in some embodiments of the present utility model, the external diameter of the secondary air cyclone 12 is 60mm, and the First air is empty
The distance of stomata 8 and the secondary air cyclone 12 is 55-65mm；Each air connection flame branch mouthful 10 be arranged in two it is adjacent
First air airport 8 centre position, each air connection flame 10 draw ratios of branch mouthful are 20-25.
According to specific embodiment of the utility model, the size and set location of coal gas flame tube interconnector are not particularly limited,
In some embodiments of the present utility model, the distance between the coal gas flame tube interconnector and the secondary gas pipe are 55-65mm；Institute
State coal gas flame tube interconnector and 3 gas ports and 14 coal gas connection flame branch mouthful are set, a gas port leads to
Footpath size is 20-30mm, and every 7 of the coal gas connection flame branch mouthful corresponds to air connection flame branch mouthful for one group, and each branch mouthful is small
Pitch of holes 25-30mm, aperture size is 3-5mm, and the latus rectum size of the secondary gas port is 25-35mm, two dant
The plane that gas blowout mouthful axis is formed and all spout axis are formed on the coal gas flame tube interconnector plane are into 25 ° of angles.
According to specific embodiment of the utility model, Fig. 5 is the utility model igniter burner structure chart, as shown in figure 5, often
Individual combustion chamber is designed with an igniter burner, and the igniter burner is fastened by bolts peace with the igniter burner sleeve pipe
Cooling of electrode wind interface, gas for ignition interface and igniting air interface, igniter burner are respectively disposed with dress, the igniter burner
Load is 0.5-1kw, and jet size is 40-45mm, and combustion flame length is 150-200mm.The igniter burner cannula center
Line is in the plane that at least three radiant tubes flange axis is formed, and perpendicular to radiant tube flange axis, institute
The center line of igniter burner sleeve pipe 19 is stated with the centreline space of the coal gas flame tube interconnector 14 and secondary gas pipe 15 away from 130-
150mm。
According to specific embodiment of the utility model, the set-up mode of radiant tube is not particularly limited, in the utility model
Some embodiments in, the radiant tube horizontal mode is positioned over furnace interior, or a point row are arranged in furnace interior vertically, also
Or arranged in " product " font.
According to specific embodiment of the utility model, in order to control air, between the metal flange and the four-way valve
Provided with valve, the break-make for controlling air in burner.Meanwhile, the coal gas flame tube interconnector has cuts valve soon, in order to join flame
Switching.
According to specific embodiment of the utility model, the material and specification of heat storage are not particularly limited, new in this practicality
In some embodiments of type, the size of the heat storage 4 is 150x100x100mm, and inner passage uses cellular aperture, aperture
Size is 2-4mm, and the honeycomb aperture of every piece of heat storage 4 is interconnected inside burner.Hereby it is achieved that storage and the profit of heat
With.
Embodiment one
First, burner block is stretched into combustion chamber tapping by each burner, and real compression will be filled at gap with fire-retardent fiber felt-rug,
The connecting bolt of burner block external metallization flanged plate and combustion chamber is fastenedly connected, then by the adpting flange of body of air
It is connected with, and firmly installs with the flange of burner block, cover plate is fastened by bolts with body of air, heat-insulation layer is installed
To the inside of body of air, form 3 individual cavities that heat storage is placed, heat storage lay with inside it.Combustion chamber passes through each
From radiant tube adpting flange be connected with radiant tube by bolt, radiant tube can be positioned in body of heater with burst horizontal mode
Portion, can also divide row to be arranged in furnace interior vertically, can be combined according to different technology conditions, the air sheet in burner
The metal flange of body is attached with two connectors of four-way valve by the metal flange on pipeline respectively, and four-way valve is in addition
Metal flange of two connectors respectively with smoke evacuation house steward and air header is fastened by bolts.
During work, first a burner A18 is lighted, after its stable burning, the metal method of burner A, B body of air is opened
Blue early gate, now four-way valve 19 work so that burner A air pipe line is connected, while opening the fast of coal gas flame tube interconnector 6
Cut valve so that burner A gaspipe line is connected, burner A burnings, flame leads in the inline flame burnings of combustion chamber A20, flame
Cross combustion chamber A20 and enter and burnt in radiant tube 17, high-temperature flue gas is reached in the B of combustion chamber by radiant tube.And burner B
In the action of four-way valve, smoke-exhaust pipeline is connected, discharged fume, according to the thermic load of burner, the cold air of certain flow
Air inlet heat storage, 900-1000 DEG C is preheating to by heat storage, and now whole combustion system is normally run；Burner A, B
Four-way valve performs inverse operation after a working unit time, makes whole combustion system periodicity reversing combustion.This embodiment
Burner joins flame function-stable, ensure that ignition, and the length of flame is in 1000-1200mm, and combustion gas is liquefied petroleum gas calorific value
Radiant tube surface temperature is respectively 800 DEG C after 12000kcal/m3, burning, 790 DEG C, 785 DEG C, every radiant tube axial direction temperature
About ± 5 DEG C of degree difference, NOx content is in 55ppm in flue gas.
Inventor has found, according to the device of the utility model embodiment, air single heat accumulating type burner by combustion chamber with
Tubular combination is radiated, multitubular bundles radiant tube combustion device is developed, the flame that the device goes out burner combustion is in radiant tube
Burning, while high-temperature flue gas is discharged uniformly through another heat-storage type burner of radiant tube UNICOM, Fire Radiation and high temperature cigarette
Gas is conducted heat by radiant tube to furnace interior, while improving the radiant power of radiant tube, each two burner and combustion chamber are
One group, the quantity of radiant tube can set multiple radiant tubes according to technological parameter, reduce the throwing of igniter burner system and device
Enter, while reducing the area of installing and using of device, debugging more facilitates, localized high temperature regions are reduced by fractional combustion, it is real
NOx content is reduced to 50-80ppm in existing flue gas.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
One or more this feature can be expressed or be implicitly included to the feature of " first ", " second ".
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be entered
Row is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification, simultaneously for those of ordinary skill in the art, foundation
The thought of the application, will change in specific embodiments and applications.
Claims (10)
1. a kind of fractional combustion thermal-storage burning device utilizing radiant tube, it is characterised in that including：At least two air single heat accumulating types fire
Burner, body of heater（16）, at least three radiant tubes（17）, igniter burner（18）, igniter burner sleeve pipe（19）, at least two combustion chambers
（20）, four-way valve（21）With radiant tube adpting flange（22）；The air single heat accumulating type burner includes：Cover plate（1）, air sheet
Body（2）, heat-insulation layer（3）, heat storage（4）, burner block（5）, gas pipe（6）, air nozzle brick（7）, First air airport（8）,
Coal gas connection flame branch mouthful（9）, air connection flame branch mouthful（10）, a gas port（11）, secondary air cyclone（12）, two dants
Gas blowout mouthful（13）, coal gas flame tube interconnector（14）, secondary gas pipe（15）, wherein：
First burner A and the first combustion chamber A is located at the side of the body of heater, and the second burner B and the second combustion chamber B are located at institute
State the opposite side of body of heater, the first burner A and the second burner B burner block are respectively protruding into the first combustion chamber A
With the second combustion chamber B tapping, and extend into combustion chamber, the burner block external metallization flanged plate and corresponding combustion chamber
It is fastenedly connected；
The body of air（2）Adpting flange and burner block（5）Flange be fixedly connected, the cover plate（1）With body of air
（2）It is fastened by bolts, the body of air（2）Inside is divided at least three cavitys, heat-insulation layer（3）It is arranged on body of air
（2）Inside, formed heat storage place at least three individual cavities, the heat storage（4）It is placed in the inside cavity；
The air nozzle brick（7）With burner block（5）It is connected, the burner block（5）Inside is separated at least three cavitys, point
Not with the body of air（2）At least three cavitys that inside is divided equally are connected；The air nozzle brick（7）Front end is provided with least
Three First air airports（8）, secondary air cyclone described at least three（12）Join with air described at least two
Flame branch mouthful（10）, the secondary air cyclone（12）With the burner block（5）At least three cavitys that inside is separated into
Cener line is coaxially arranged, the First air airport（8）In the secondary air cyclone（12）Underface, it is described
At least two air connection flame branch mouthful（10）It is arranged at least three First airs airport（8）Between；
The gas pipe（6）Positioned at the air nozzle brick（7）Cavity in, be divided into above and below two layers, wherein, lower floor be coal gas connection
Flame tube（14）, upper strata is secondary gas pipe（15）, it is connected up and down after two layers of parallel connection with branch gas tube road, the coal gas flame tube interconnector
（14）Provided with a gas port described at least three（11）With multiple coal gas connection flame branch mouthful（9）, the secondary gas pipe
（15）On be provided with secondary gas port described at least three（13）, each secondary gas port（13）Central axis with it is corresponding
Secondary air cyclone（12）Axis coaxle arrangement, the secondary gas port（13）The planar horizontal arrangement that axis is formed
With the coal gas flame tube interconnector（14）Angle is formed between the plane that upper all spout axis are formed；
First, second combustion chamber（20）Fasten and install with the first, second air single heat accumulating type burner respectively, it is described
Combustion chamber（20）On at least three radiant tube adpting flange axis respectively with corresponding burner the secondary air revolve
Flow device（12）Axis coincide, the radiant tube extends in the inner chamber of the body of heater, its one end and the first combustion chamber A spoke
Penetrate pipe adpting flange（22）Connection, the other end and the second combustion chamber B radiant tube adpting flange（22）Connection.
2. device according to claim 1, it is characterised in that the first burner A and the second burner B air sheet
Body（2）Metal flange respectively with the four-way valve（21）Two connectors be attached by the metal flange on pipeline,
Two other connector of four-way valve (21) is fastened with the metal flange of smoke evacuation house steward and air header respectively.
3. device according to claim 2, it is characterised in that burner block external metallization flanged plate is adopted with corresponding combustion chamber
It is bolted connection；The body of air（2）Adpting flange and burner block（5）Flange be fixedly connected with bolt；Four-way
Metal flange of two other connector of valve (21) respectively with smoke evacuation house steward and air header is fastened by bolts；Described
First, the second combustion chamber（20）Respectively installation is fastened by bolts with the first, second air single heat accumulating type burner.
4. the device according to any one of claim 1-3, it is characterised in that the secondary air cyclone（12）'s
External diameter is 60mm, the First air airport（8）With the secondary air cyclone（12）Distance be 55-65mm；Each
Air connection flame branch mouthful（10）It is arranged in two adjacent First air airports（8）Centre position, each air connection flame branch mouthful
（10）Draw ratio is 20-25.
5. the device according to any one of claim 1-3, it is characterised in that the coal gas flame tube interconnector（14）With described two
Secondary gas pipe（15）The distance between be 55-65mm；The coal gas flame tube interconnector（14）3 gas ports are set（11）
With 14 coal gas connection flame branch mouthful（9）, a gas port（11）Latus rectum size is 20-30mm, and the coal gas joins flame
Branch mouthful（9）Every 7 are one group and correspond to air connection flame branch mouthful（10）, each small pitch of holes 25-30mm of branch mouthful, aperture size
For 3-5mm, the secondary gas port（13）Latus rectum size be 25-35mm, the secondary gas port（13）Axis is linear
Into plane and the coal gas flame tube interconnector（14）The plane that upper all spout axis are formed is into 25 ° of angles.
6. the device according to any one of claim 1-3, it is characterised in that each combustion chamber is designed with a point
Burn mouth, the igniter burner（18）With the igniter burner sleeve pipe（19）It is fastened by bolts installation, the igniter burner
（18）On be respectively disposed with cooling of electrode wind interface, gas for ignition interface and igniting air interface, igniter burner load be 0.5-
1kw, jet size is 40-45mm, and combustion flame length is 150-200mm.
7. device according to claim 6, it is characterised in that the igniter burner sleeve pipe（19）Center line it is described at least
In the plane of three radiant tube flange axis formation, and perpendicular to radiant tube flange axis, the igniter burner set
Pipe（19）Center line and the coal gas flame tube interconnector（14）With secondary gas pipe（15）Centreline space away from 130-150mm.
8. the device according to any one of claim 1-3, it is characterised in that the radiant tube horizontal mode is positioned over stove
Internal portion, or a point row are arranged in furnace interior vertically, also or in " product " font arrange.
9. the device according to any one of claim 1-3, it is characterised in that the metal flange and the four-way valve it
Between be provided with valve, the break-make for controlling air in burner；The coal gas flame tube interconnector（14）With cutting valve soon.
10. the device according to any one of claim 1-3, it is characterised in that the heat storage（4）Size be
150x100x100mm, inner passage uses cellular aperture, and orifice size is 2-4mm, every piece of heat storage（4）It is cellular small
Hole is interconnected inside burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621384043.5U CN206600801U (en) | 2016-12-16 | 2016-12-16 | A kind of fractional combustion thermal-storage burning device utilizing radiant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621384043.5U CN206600801U (en) | 2016-12-16 | 2016-12-16 | A kind of fractional combustion thermal-storage burning device utilizing radiant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600801U true CN206600801U (en) | 2017-10-31 |
Family
ID=60149163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621384043.5U Expired - Fee Related CN206600801U (en) | 2016-12-16 | 2016-12-16 | A kind of fractional combustion thermal-storage burning device utilizing radiant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642111A (en) * | 2016-12-16 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | Fractional combustion heat accumulating type radiant tube combustion device |
| CN109595553A (en) * | 2018-12-17 | 2019-04-09 | 宜兴市华宇窑炉制造有限公司 | Modified flue gas reuse heat-accumulating burner |
-
2016
- 2016-12-16 CN CN201621384043.5U patent/CN206600801U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642111A (en) * | 2016-12-16 | 2017-05-10 | 北京神雾环境能源科技集团股份有限公司 | Fractional combustion heat accumulating type radiant tube combustion device |
| CN109595553A (en) * | 2018-12-17 | 2019-04-09 | 宜兴市华宇窑炉制造有限公司 | Modified flue gas reuse heat-accumulating burner |
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