CN201731490U - Multi-fuel industrial boiler and furnace burner - Google Patents

Multi-fuel industrial boiler and furnace burner Download PDF

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Publication number
CN201731490U
CN201731490U CN2010202611558U CN201020261155U CN201731490U CN 201731490 U CN201731490 U CN 201731490U CN 2010202611558 U CN2010202611558 U CN 2010202611558U CN 201020261155 U CN201020261155 U CN 201020261155U CN 201731490 U CN201731490 U CN 201731490U
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China
Prior art keywords
fuel
pipe
precombustion chamber
powder feeding
air compartment
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CN2010202611558U
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Chinese (zh)
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郭雅婷
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郭雅婷
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Abstract

The utility model discloses a multi-fuel industrial boiler and a furnace burner, belonging to the burning appliance field. The technical proposal is that the utility model comprises an blowing chamber, a precombustion chamber, a blowing pipe, a gas pipe, a fuel pipe and a powder feeding pipe, wherein, precombustion chamber comprises an expanded conical body at the back end and a contracted conical body at the front end and with a front opening; the front flange of the blowing chamber is fixedly connected with the outer side of the expanded conical body of the precombustion chamber, guide vanes are distributed circularly and evenly between the back flange of the blowing chamber and the back retaining plate of the precombustion chamber; the powder feeding pipe, the gas pipe, the fuel pipe and an ignition electrode are arranged on the back flange of the blowing chamber; a scattering device is arranged at the front end of the powder feeding pipe and positioned at the maximum diameter of the precombustion chamber, comprising rotary vanes revolving around the axis of the scattering device and an outside end closure; the blowing pipe is arranged at one side of the blowing chamber. The utility model has the advantages that the furnace burner can burn powder fuel, liquid fuel and gas fuel respectively or simultaneously and is beneficial for energy conservation and environmental production.

Description

Multicomponent fuel industrial boiler and kiln burner
Technical field
The utility model relates to burner, the multicomponent fuel industrial boiler and the kiln burner of that particularly a kind of suitable Industrial Boiler and Industrial Stoves use, incendivity powder fuel (as coal dust, living beings powder etc.), liquid fuel and gaseous fuel.
Background technology
Along with rapid development of economy, problems such as China's energy utilization rate is low, environmental pollution is serious become increasingly conspicuous, Industrial Boiler and kiln energy resource consumption and disposal of pollutants all occupy China's industrial trade second, be only second to station boiler, become problem demanding prompt solution so improve the efficiency of combustion of Industrial Boiler and kiln.Existing Industrial Boiler and kiln are based on fire coal, other fuel such as oil, gas, living beings are auxilliary, wherein the coal-burning boiler overwhelming majority is the grate firing mode, it adopts traditional burner, using lump coal is main fuel, be not suitable for the powder material that burns, and the burner of existing fuel-firing gas-firing can not directly apply to the powder material use.The coal burner that is used for station boiler at present, its structure only are suitable for the well-to-do station boiler of furnace cavity and use, and can not be directly used in the very limited Industrial Boiler of furnace cavity.Simultaneously, existing Industrial Stoves adopt the direct injection combustion device, and combustion system is more extensive, and energy consumption and pollution are difficult to control.Therefore, develop that a kind of suitable Industrial Boiler and kiln use distinguish or the energy-saving environment-protection combustor of the powder fuel that burns simultaneously (as coal dust, living beings powder etc.), liquid fuel and gaseous fuel very necessary.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art: the burner that existing Industrial Boiler and kiln use, burning when can't realize the burning of powder fuel or powder fuel, liquid fuel and gaseous fuel, and energy consumption and pollution are difficult to control.
The utility model content
For the burner that Industrial Boiler and kiln are used can be distinguished or burn simultaneously powder fuel, liquid fuel and gaseous fuel, and energy-conserving and environment-protective, the utility model embodiment provides a kind of multicomponent fuel industrial boiler and kiln burner.Described technical scheme is as follows:
Multicomponent fuel industrial boiler and kiln burner comprise air compartment, precombustion chamber, blast pipe, Gas Pipe, fuel pipe, powder feeding pipe, shell and control cabinet:
Described precombustion chamber comprises the reamer body that is positioned at the rear end and is positioned at front end and the open-ended cone that contracts of front end, the front end flange of described air compartment is fixedlyed connected with the external side of the reamer of described precombustion chamber, is provided with annular equally distributed guide vane between the back end flanges of described air compartment and the back end-stopping plate of described precombustion chamber;
The back end flanges outside of described air compartment is provided with shell, the inboard of described shell bottom surface is provided with high voltage package, gas electromagnetic valve and fuel pump, the outside of described shell bottom surface is provided with control cabinet, and described control cabinet divides level signal to be connected with described high voltage package, described gas electromagnetic valve and described fuel pump;
The rear end flange center of described air compartment is provided with powder feeding pipe, the rear end of described powder feeding pipe is passed described shell and is extended described housing exterior, the front end of described powder feeding pipe stretches in the described precombustion chamber, the front end end of described powder feeding pipe is provided with dispersal device, and described dispersal device is positioned at the maximum gauge place of described precombustion chamber;
Described dispersal device is made up of rotating vane and end cap, the center that described rotating vane is passed in the rear end of described end cap is threaded with described powder feeding pipe, described rotating vane is movably arranged between described powder feeding pipe and the described end cap, and the circumference of described end cap is provided with the flour opening that is communicated with described powder feeding pipe and described rotating vane;
Also be provided with fuel pipe, Gas Pipe and ignitor on the back end flanges of described air compartment, described fuel pipe is connected with described fuel pump, and described Gas Pipe is connected with described gas electromagnetic valve, and described ignitor is connected with described high voltage package;
Described blast pipe is arranged on the side of described air compartment.
In order better to realize the foregoing invention purpose, the utility model embodiment can also comprise following technical scheme: the angle α of the sidewall of described reamer body and its axis is 6 °~14 ° or 20 °~45 °, and the angle β of the sidewall of the described cone that contracts and its axis is 12 °~18 ° or 0 °~10 °.
In order better to realize the foregoing invention purpose, the utility model embodiment can also comprise following technical scheme: described guide vane is connected on the back end flanges of described air compartment by annular fixed disk, described guide vane is hingedly connected on the described annular fixed disk by the central shaft on the end face, be welded with the adjusting connecting rod on the described central shaft, the other end of described adjusting connecting rod is provided with U type adjustment hole, the inboard of described annular fixed disk is provided with annular movable disk, described annular movable disk is provided with the bolt that inserts described U type adjustment hole, the inside circumference of described annular movable disk be provided with regulating tooth and with the regulating tooth meshed gears, the center of described gear is provided with the handle that extends the end flanges outside, described back.
In order better to realize the foregoing invention purpose, the utility model embodiment can also comprise following technical scheme: also be provided with observation window, flame detection components and CCD camera assembly on the back end flanges of described air compartment, the front end of described observation window extends in the described precombustion chamber, the rear end of described observation window extends the described shell outside, and described flame detection components is connected with described control cabinet signal respectively with described CCD camera assembly.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: 1, by gas, oil, three nozzles of powder are set, can realize the independent burning or the mixed combustion of various fuel.2, the utility model embodiment belongs to vortex burner, and adopts adjustable blade, makes the combustion air that enters in the burner can produce different swirl strengths, thereby is easy to control combustion intensity and load.3, the precombustion chamber made by heat resisting steel of the utility model adopts different structures when being applied to boiler or kiln, promptly adopt preferred cone angle and β, thereby efficiency of combustion is brought up to 96%~98%.4, the utility model is owing to be provided with dispersal device at powder fuel nozzle ports place, dispersal device directly is connected the powder feeding pipe front end, structure adopts the rotating vane structure, powder can be blown out from each different direction, add wind action, the rotating vane rotation is blown out the powder rotation simultaneously, can make the powder fuel of carrying in precombustion chamber, form the dispersion of optimizing, thereby make the burning of powder material abundant more and stable through dispersal device.5, the utility model embodiment makes that by unique flow Field Design the ignition temperature field distribution of flame in precombustion chamber and combustion chamber is even, localized hyperthermia's phenomenon can not occur, for the desulfuration in furnace and the low nitrogen burning of fuel have been created advantage.6, the utility model embodiment can reach higher efficiency of combustion, can significantly reduce operating cost simultaneously.The utility model embodiment can be widely used in various Industrial Boilers and the kiln.
Description of drawings
Fig. 1 is the front view that the utility model embodiment provides;
Fig. 2 is the side view that the utility model embodiment provides;
Fig. 3 is the enlarged drawing of A portion among Fig. 1;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is the enlarged drawing of B portion among Fig. 2.
In the accompanying drawing, the component list of each label representative is as follows:
1, air compartment; 2, precombustion chamber; 3, blast pipe; 4, Gas Pipe; 5, fuel pipe; 6, powder feeding pipe; 7, shell; 8, control cabinet; 11, back end flanges; 12, guide vane; 13, front end flange; 21, reamer body; 22, the cone that contracts; 23, connecting plate; 41, ignitor; 42, high voltage package; 43, gas electromagnetic valve; 51, fuel pump; 61, dispersal device; 71, observation window; 81, flame detection components; 82, CCD camera assembly; 121, handle; 122, gear; 123, annular movable disk; 124, annular fixed disk; 125, central shaft; 126, regulate connecting rod; 127, U type adjustment hole; 128, bolt; 129, regulating tooth; 611, rotating vane; 612, flour opening; 613, end cap;
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1-5, the technical scheme of the utility model embodiment is: multicomponent fuel industrial boiler and kiln burner comprise air compartment 1, precombustion chamber 2, blast pipe 3, Gas Pipe 4, fuel pipe 5, powder feeding pipe 6, shell 7 and control cabinet 8:
Precombustion chamber 2 comprises the reamer body 21 that is positioned at the rear end and is positioned at front end and the open-ended cone 22 that contracts of front end, the front end flange 11 of air compartment 1 is fixedlyed connected with reamer body 21 outsides of precombustion chamber 2, is provided with annular equally distributed guide vane 12 between the back end flanges 13 of air compartment 1 and the back end-stopping plate 23 of precombustion chamber 2;
Back end flanges 13 outsides of air compartment 1 are provided with shell 7, the inboard of shell 7 bottom surfaces is provided with high voltage package 42, gas electromagnetic valve 43 and fuel pump 51, the outside of shell 7 bottom surfaces is provided with control cabinet 8, and control cabinet 8 is connected by signal line respectively with high voltage package 42, gas electromagnetic valve 43 and fuel pump 51;
Back end flanges 13 centers of air compartment 1 are provided with powder feeding pipe 6, the rear end of powder feeding pipe 6 is passed shell 7 and is extended shell 7 outsides, the front end of powder feeding pipe 6 stretches in the precombustion chamber 2, the front end end of powder feeding pipe 6 is provided with dispersal device 61, dispersal device 61 is positioned at the maximum gauge place of precombustion chamber 2, i.e. the junction of the reamer body 21 and the cone 22 that contracts;
Dispersal device 61 is made up of rotating vane 611 and end cap 613, the center that rotating vane 611 is passed in the rear end of end cap 613 is threaded with powder feeding pipe 6, rotating vane 611 is movably arranged between powder feeding pipe 6 and the end cap 613, and the circumference of end cap 613 is provided with the flour opening 612 that is communicated with powder feeding pipe 6 and rotating vane 611;
Also be provided with fuel pipe 5, Gas Pipe 4 and ignitor 41 on the back end flanges 13 of air compartment 1, fuel pipe 5 is connected with fuel pump 51, and Gas Pipe 4 is connected with gas electromagnetic valve 43, and ignitor 41 is connected with high voltage package 42;
Blast pipe 3 is arranged on the side of air compartment 1.
The angle α of the sidewall of reamer body 21 and its axis is 6 °~14 ° or 20 °~45 °, and the angle β of the sidewall of the cone that contracts 22 and its axis is 12 °~18 ° or 0 °~10 °.
Guide vane 12 is connected on the back end flanges 13 of air compartment 1 by annular fixed disk 124, guide vane 12 is hingedly connected on the annular fixed disk 124 by the central shaft on the end face 125, be welded with on the central shaft 125 and regulate connecting rod 126, the other end of regulating connecting rod 126 is provided with U type adjustment hole 127, the inboard of annular fixed disk 124 is provided with annular movable disk 123, annular movable disk 123 is provided with the bolt 128 that inserts U type adjustment hole 127, the inside circumference of annular movable disk 123 be provided with regulating tooth 129 and with regulating tooth 129 meshed gears 122, the center of gear 122 is provided with the handle 121 that extends end flanges 13 outsides, back.
Also be provided with observation window 71, flame detection components 81 and CCD camera assembly 82 on the back end flanges 13 of air compartment 1, the front end of observation window 71 extends in the precombustion chamber 2, the rear end of observation window 71 extends shell 7 outsides, and flame detection components 81 and CCD camera assembly 81 are connected by signal line with control cabinet 8 respectively.
The burner of the utility model embodiment, powder in the powder feeding pipe 6 enters in the precombustion chamber 2 by the dispersal device 61 of its front end, promptly enter the inner chamber of end cap 613 by the inner chamber of powder feeding pipe 6, flour opening 612 and the rotating vane 611 from end cap 613 circumference enters in the precombustion chamber 2 then; Powder enters in the precombustion chamber 2 by all directions of rotating vane 611 from its circumference, is uniformly dispersed; Add enter combustion-supporting wind action in the precombustion chamber 2 from blast pipe 3 and guide vane 12 under, rotating vane 611 is around self rotation, thereby powder is thrown away with all directions of parabolical form from rotating vane 611 circumference, send in the precombustion chamber 2, disperse more evenly, the burning of powder fuel more fully and stable; And dispersal device 61 is arranged on the maximum gauge place of precombustion chamber 2, also can guarantee the abundant dispersion of powder.
The burner of the utility model embodiment, when being used for Industrial Boiler, the angle α of the sidewall of its reamer body 21 and its axis is 6 °~14 °, the angle β of the sidewall of the cone that contracts 22 and its axis is 12 °~18 °; When being used for kiln, the angle α of the sidewall of its reamer body 21 and its axis is 20 °~45 °, the angle β of the sidewall of the cone that contracts 22 and its axis is 0 °~10 °, by the structure after the above-mentioned angle optimization, make the air flow field that obtains optimization in the precombustion chamber 2, and can make flame quicken ejection in the exit of precombustion chamber 2, show through the combustion test result, the efficiency of combustion of its fuel reaches 96%~98%, and the flow Field Design of above-mentioned uniqueness, make that the ignition temperature field distribution of flame in precombustion chamber 2 and combustion chamber is even, localized hyperthermia's phenomenon can not occur, for the desulfuration in furnace and the low nitrogen burning of fuel have been created advantage; Simultaneously higher efficiency of combustion also can significantly reduce operating cost.
The burner of the utility model embodiment, by rotary handle 121, driven gear 122 rotation, thus stir regulating tooth 129 and annular movable disk 123 is rotated synchronously; During 123 rotations of annular movable disk, in U type adjustment hole 127, slide, drive and regulate connecting rod 126 rotations, thereby drive central shaft 125 and guide vane 12 rotations, realize adjusting the angle of guide vane 12 by bolt 128; The difference of the angle of guide vane 12 can make the combustion air that enters in the burner produce different swirl strengths, thereby be easy to control combustion intensity and load.
The burner of the utility model embodiment, during installation, at first whole burner is docked with Industrial Boiler or kiln by front end flange 13, rear end with powder feeding pipe 6 is connected with feeding device then, gas electromagnetic valve 43 is connected (source of the gas can be in propane flammable gas, liquefied petroleum gas or the natural gas any one) with gas source, fuel pump 51 is connected with fuel tank, and blast pipe 3 is connected with air blast, and the holding wire and the power line of control system is connected with control cabinet 8.
The operation principle of the utility model embodiment:
During burning gases fuel: the relevant therrmodynamic system of boiler or kiln, drum induced draught system start finish after, start high voltage package 42, the ignitor 41 that links to each other with high voltage package 42 promptly begins to discharge high tension spark, start gas electromagnetic valve 43 afterwards, combustion gas is connected, and combustion gas is ignited under the effect of high tension spark by Gas Pipe 4 ejections, close high voltage package 42 afterwards, can realize the autonomous burning of combustion gas.
During combustion of liquid fuel: the step of at first carrying out above-mentioned burning gases fuel, start fuel pump 51 afterwards, connect fuel oil, fuel oil is promptly by fuel pipe 5 ejections, under the effect of gas flame, ignite, be gas fuel mixed combustion under this kind situation, this moment is if close the autonomous burning that gas electromagnetic valve can be realized fuel oil.
During burning powder fuel (as coal dust, living beings powder): at first carry out the above-mentioned burning gases fuel and/or the step of combustion of liquid fuel, start feeding device afterwards, powder fuel enters ajutage 6 by feeding device, enters precombustion chamber 2 through dispersal device 61.Simultaneously, air blast imports air compartment 1 with combustion air by blast pipe 3, produces eddy flow through guide vane 12 and enters precombustion chamber 2, with the powder fuel mix of ajutage 6 importing precombustion chambers 2.Powder fuel is ignited by fuel oil flame, in precombustion chamber 2, form and revolve the flame burning, can realize the mixed combustion of combustion gas, fuel oil, powder fuel multipropellant under this kind situation, also can close gas electromagnetic valve 43 and fuel pump 51, promptly realize the autonomous burning of powder material.
Above step all can realize operation automatically under the combination of control cabinet 8, flame detection components 81 and boiler control system.Can the field observation combustion position by observation window 71, can the remote observation combustion position by CCD camera assembly 82.In process of coal combustion, can change the powder-feeding amount of feeding device, the air output of air blast and the parameters such as eddy flow angle of guide vane 12, thereby length, burning position, combustion intensity and the swirl strength etc. of control flame, make fuel be able to reasonably tissue burning, reach the purpose of steady combustion.
As shown in Figure 2, the blast pipe 3 among the utility model embodiment is that tangential manner is blown to air compartment 1, and it is air compartment 1 air-supply that blast pipe 3 can also adopt the mode of vertical air intake.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (5)

1. multicomponent fuel industrial boiler and kiln burner is characterized in that, comprise air compartment, precombustion chamber, blast pipe, Gas Pipe, fuel pipe, powder feeding pipe, shell and control cabinet:
Described precombustion chamber comprises the reamer body that is positioned at the rear end and is positioned at front end and the open-ended cone that contracts of front end, the front end flange of described air compartment is fixedlyed connected with the external side of the reamer of described precombustion chamber, is provided with annular equally distributed guide vane between the back end flanges of described air compartment and the back end-stopping plate of described precombustion chamber;
The back end flanges outside of described air compartment is provided with shell, the inboard of described shell bottom surface is provided with high voltage package, gas electromagnetic valve and fuel pump, the outside of described shell bottom surface is provided with control cabinet, and described control cabinet divides level signal to be connected with described high voltage package, described gas electromagnetic valve and described fuel pump;
The rear end flange center of described air compartment is provided with powder feeding pipe, the rear end of described powder feeding pipe is passed described shell and is extended described housing exterior, the front end of described powder feeding pipe stretches in the described precombustion chamber, the front end end of described powder feeding pipe is provided with dispersal device, and described dispersal device is positioned at the maximum gauge place of described precombustion chamber;
Described dispersal device is made up of rotating vane and end cap, the center that described rotating vane is passed in the rear end of described end cap is threaded with described powder feeding pipe, described rotating vane is movably arranged between described powder feeding pipe and the described end cap, and the circumference of described end cap is provided with the flour opening that is communicated with described powder feeding pipe and described rotating vane;
Also be provided with fuel pipe, Gas Pipe and ignitor on the back end flanges of described air compartment, described fuel pipe is connected with described fuel pump, and described Gas Pipe is connected with described gas electromagnetic valve, and described ignitor is connected with described high voltage package;
Described blast pipe is arranged on the side of described air compartment.
2. multicomponent fuel industrial boiler according to claim 1 and kiln burner, it is characterized in that, the angle α of the sidewall of described reamer body and its axis is 6 °~14 ° or 20 °~45 °, and the angle β of the sidewall of the described cone that contracts and its axis is 12 °~18 ° or 0 °~10 °.
3. multicomponent fuel industrial boiler according to claim 1 and 2 and kiln burner, it is characterized in that, described guide vane is connected on the back end flanges of described air compartment by annular fixed disk, described guide vane is hingedly connected on the described annular fixed disk by the central shaft on the end face, be welded with the adjusting connecting rod on the described central shaft, the other end of described adjusting connecting rod is provided with U type adjustment hole, the inboard of described annular fixed disk is provided with annular movable disk, described annular movable disk is provided with the bolt that inserts described U type adjustment hole, the inside circumference of described annular movable disk be provided with regulating tooth and with the regulating tooth meshed gears, the center of described gear is provided with the handle that extends the end flanges outside, described back.
4. multicomponent fuel industrial boiler according to claim 1 and 2 and kiln burner, it is characterized in that, also be provided with observation window, flame detection components and CCD camera assembly on the back end flanges of described air compartment, the front end of described observation window extends in the described precombustion chamber, the rear end of described observation window extends the described shell outside, and described flame detection components is connected with described control cabinet signal respectively with described CCD camera assembly.
5. multicomponent fuel industrial boiler according to claim 3 and kiln burner, it is characterized in that, also be provided with observation window, flame detection components and CCD camera assembly on the back end flanges of described air compartment, the front end of described observation window extends in the described precombustion chamber, the rear end of described observation window extends the described shell outside, and described flame detection components is connected with described control cabinet signal respectively with described CCD camera assembly.
CN2010202611558U 2010-07-09 2010-07-09 Multi-fuel industrial boiler and furnace burner Expired - Lifetime CN201731490U (en)

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CN2010202611558U CN201731490U (en) 2010-07-09 2010-07-09 Multi-fuel industrial boiler and furnace burner

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Application Number Priority Date Filing Date Title
CN2010202611558U CN201731490U (en) 2010-07-09 2010-07-09 Multi-fuel industrial boiler and furnace burner

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871648A (en) * 2010-07-09 2010-10-27 郭雅婷 Multicomponent fuel industrial boiler and kiln burner
CN103196154A (en) * 2012-01-05 2013-07-10 通用电气公司 Combustor and method for distributing fuel in the combustor
CN110160050A (en) * 2019-06-05 2019-08-23 中国矿业大学 A kind of biomass gasified gas and coal dust cofiring low NO

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871648A (en) * 2010-07-09 2010-10-27 郭雅婷 Multicomponent fuel industrial boiler and kiln burner
CN103196154A (en) * 2012-01-05 2013-07-10 通用电气公司 Combustor and method for distributing fuel in the combustor
US9322557B2 (en) 2012-01-05 2016-04-26 General Electric Company Combustor and method for distributing fuel in the combustor
CN110160050A (en) * 2019-06-05 2019-08-23 中国矿业大学 A kind of biomass gasified gas and coal dust cofiring low NO

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AV01 Patent right actively abandoned

Granted publication date: 20110202

Effective date of abandoning: 20120530