CN205014368U - Intelligent natural gas, dual -purpose combustor of buggy - Google Patents
Intelligent natural gas, dual -purpose combustor of buggy Download PDFInfo
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- CN205014368U CN205014368U CN201520684856.5U CN201520684856U CN205014368U CN 205014368 U CN205014368 U CN 205014368U CN 201520684856 U CN201520684856 U CN 201520684856U CN 205014368 U CN205014368 U CN 205014368U
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Abstract
The utility model provides an intelligent natural gas, dual -purpose combustor of buggy which burner body is become by buggy rifle, natural gas air jet system, ventiduct, air regulation mechanism group, and the buggy rifle lies in buggy burner body's center, is provided with on the buggy rifle to be used for adjusting the buggy rifle main part adjustable mechanism of the distance of the whirlwind leaf of a buggy ejiction opening and a wind passageway rear end and the blunt body adjustment mechanism on the buggy rifle, natural gas air jet system is located the outside of buggy spray gun, sets up with the buggy spray gun is concentric, the buggy rifle lead the inner tube that a positive section of thick bamboo constitutes natural gas air jet system, the tip of natural gas air jet system is provided with jet -propelled mechanism. Set up buggy rifle and natural gas air jet system in same platform combustor, the natural gas and buggy all can be independently stable burning, can switch immediately in the actual motion, avoided the break down condition of blowing out of conveying equipment of perhaps burning because of an undercharge, realized the continuity of firing coal burner, stability and reliability.
Description
Technical field
The utility model relates to a kind of burner, particularly a kind of intelligent natural gas, coal dust dual burner be applicable in energy-efficient, environmental protection pulverized-coal fired boiler corollary equipment.
Background technology
Along with economic, social development, the demand of the mankind to the energy increases year by year, and before the new energy use technology maturations such as fusion energy, solar energy, geothermal energy, the fossil fuels such as coal, oil, natural gas remain the main energy sources that the mankind depend on for existence.Therefore make, research and develop the combustion apparatus of fire coal (powder), fuel oil, combustion gas (natural gas, blast furnace gas, coke-stove gas, producer gas etc.), remain a very powerful and exceedingly arrogant industry.And concerning China, due to natural gas and oil price expensive, coal occupies the share of more than 70% in the energy wastage in bulk or weight of China, and the energy resource structure based on coal within a quite long period can not change.But along with the energy is constantly nervous, the continuous aggravation of environmental pollution, concerning the thermal hardware of fire coal, energy-efficient, clean environment firendly becomes again technological difficulties urgently to be resolved hurrily.
At present, China is the big country that the world today produced and used Industrial Boiler, and within the following quite a long time, coal-burned industrial boiler will be the leading products of China.But coal-burning boiler in the past can produce serious environmental pollution and poor efficiency, along with energy-conserving and environment-protective require increasingly stringent, application novel high-efficient energy-saving environment-friendly pulverized-coal fired boiler will be widelyd popularize.Therefore efficient, energy-conservation, the low stain Industrial Boiler that adopt clean combustion technique will be the trend of production development.
In recent years, country expressly promotes pulverized-coal fired boiler in each province and city, coal dust is as the important component part of Chinese clean coal technology, through technological development in recent years, industrial experiment and commercial Demonstration Application, demonstrate energy-conservation, many advantages such as efficient combustion and low stain that it has, but still deposited problem both ways: one has been the impact that the supply of coal dust is subject to weather, coal seedbed, road conditions etc.; Two is that complete auxiliaries is more, increases the link affecting operation rate.
And when using natural gas as fuel, deposit problem both ways equally: one is that Gas Prices is expensive, greatly increases operating cost; Two is that natural gas is deficient, there is under-supply situation equally.
But as the generator of the energy, no matter be that heating uses or industrial production uses, all require the continuity, stability and the reliability that operate, still do not have up to now to accomplish that the thermal efficiency is high, energy-conserving and environment-protective, can accomplish again continuously, the product of the coal powder burner of stable, reliability service comes out.
Summary of the invention
For existing burner, the utility model cannot accomplish that running is continuous, stable and not enough reliably, provide a kind of energy-efficient, the intelligent natural gas of safety and environmental protection, coal dust dual burner.
The technical scheme realizing above-mentioned purpose employing is:
A kind of intelligent natural gas, coal dust dual burner, primarily of coal dust firing and combustion of natural gas two parts composition, comprise coal powder conveying system, gas conveying system, burner body, fire trough, coal powder conveying system is connected with burner body by connecting hose, gas conveying system is directly connected with burner body by steel pipe, burner body is communicated with fire trough, also comprises gas spraying device of air and ventilating duct;
A. described burner body is primarily of coal dust rifle, gas spraying device of air, ventilating duct, air quantity adjusting mechanism composition, described coal dust rifle is positioned at the center of coal burner main body, coal dust rifle is provided with twice adjustable mechanism, one be the distance of cyclone leaf for adjusting pulverized coal outlet and First air passage rear end coal dust gun main body before and after governor motion, two is the bluff body governor motions on coal dust rifle; The bluff body pull bar that bluff body pull bar is positioned at the centre of coal dust rifle is tube manufacture, is compressed air channel, and bluff body rod head arranges compressed air spirt mouth;
B. described gas spraying device of air is positioned at the outside of pulverized coal gun, arranges with pulverized coal gun is concentric; Wherein, the pilot of coal dust rifle forms the inner core of gas spraying device of air, and the end of gas spraying device of air is provided with jet mechanism;
C. described ventilating duct is set to two, and be followed successively by First air passage, secondary air channel, First air passage is positioned at coal burner center, and First air cyclone leaf is equipped with in the rear end of First air passage; First air passage forms the inner core of secondary air channel in coal burner main body, and the rear end of secondary air channel is provided with the Secondary Air cyclone leaf of adjustable angle.
As preferably, before and after described coal dust gun main body, governor motion regulates fixed block and three clamping screws to form by coal dust rifle.
As preferably, described bluff body governor motion forms by being arranged on first, second, third 3 bluff bodies that coal dust robs, wherein the second bluff body and the 3rd bluff body carry out front and back by screw thread and regulate, and adjust the distance between the first bluff body, to adapt to emitted dose and the spray angle of Coal rank.
As preferably, described jet mechanism forms by natural gas jet pipe and gas spraying pore the tail end being positioned at gas spraying device of air.
As preferably, three row's fumaroles are set at the tail end of gas spraying device of air, amount to 108.
As preferably, described gas spraying tracheae is set to many, and the end of many gas spraying tracheaes installs stable flame cover additional, and air jet pipe stretches out the cyclone leaf of First air passage rear end respectively.
As preferably, the inside and outside cylinder of described secondary air channel is respectively conical structure.
Adopt technique scheme, compared with prior art, the utility model is provided with coal dust rifle and gas spraying device of air in same burner, is arranged in First air passage, the cyclone leaf that in secondary air channel, layout angle is adjustable; Gas spraying device of air adopts two kinds of spray regimes, often kind is little spray orifice form and sprays, when independent gas-firing, compressed air connected by the bluff body pull bar at coal dust rifle center, compressed air sprays with 60 ° of jet angles, outside coal dust rifle, form one deck air film, protection is formed to the bluff body of coal dust rifle end, in order to avoid temperature is too high and damage; When independent combusting coal fines, because gas spraying device of air integral arrangement is in First air passage, have cold wind to protect all the time, can not Yin Wendu too high and damage.The utility model remains the advantage of " coal burner " (patent No. ZL201210182288.X) of my company's research and development, primary and secondary air passage is pyramidal structure, First air air quantity is only 35% of total blast volume, for strong Whirl deposite tank, in coal dust concentrated phase area anoxycausis, Secondary Air air quantity is 65% of total blast volume, eddy flow adjustable angle, supplied by wind needed for coal dust firing, combustion air classification is allocated into, effectively can avoid the generation of NOx.Natural gas and coal dust all can be independently stable burning, can switch immediately in actual motion, avoid because a kind of undercharge or burning conveying equipment break down and the situation of blowing out, achieve the continuity of burning coal power combustor, stability and reliability.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is burner schematic diagram.
In figure: coal dust import 1, compressed air inlet 2, coal dust rifle regulates fixed block 3, igniter burner 4, Secondary Air cyclone leaf angle adjuster 5, burner body 6, fire trough 7, Imported gas 8, see and visit burner 9, First air import 10, secondary air inlet 11, tertiary air import 12, coal dust rifle 13, bluff body pull bar 14, bluff body 1, bluff body 2 16, bluff body 3 17, gas spraying device of air 18, First air passage 19, secondary air channel 20, gas spraying tracheae 21, Secondary Air whirlwind sheet 22, natural gas stable flame cover 23, gas spraying pore 24, First air cyclone leaf 25.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is described further.
See accompanying drawing 1-2, intelligent natural gas, coal dust dual burner disclosed in the utility model, comprise coal dust firing and combustion of natural gas two parts, be made up of coal powder conveying system, gas conveying system, burner body, fire trough, gas spraying device of air 16 and ventilating duct etc., coal powder conveying system is connected with burner body 6 by connecting hose, gas conveying system is directly connected with burner body 6 by steel pipe, and burner body 6 is communicated with fire trough 7.
See Fig. 1, in the present embodiment, this intelligent natural gas, coal dust dual burner are primarily of burner body 6, and fire trough 7 forms.Burner body 6 and fire trough 7, coal powder conveying system, gas conveying system with the use of.Burner body 6 is arranged on fire trough 7 by bolt, and fire trough 7 is arranged on coal-powder boiler by bolt, and burner body 6 and fire trough 7 are positioned on same axis.Coal dust import 1 and Imported gas 8 are all positioned at the front end of burner body 6, and compressed air inlet 2 is positioned at the front end of coal dust rifle 13.First air import 10, secondary air inlet 11 is positioned at below burner body 6.Fire trough 7 bottom is provided with tertiary air import 12.Also be provided with below burner body 6 to see and visit burner 9.
See Fig. 2, burner body 6 is tubular structure, and by coal dust rifle 13, gas spraying device of air 18, First air import 10, secondary air inlet 11, First air passage 19, secondary air channel 20, air quantity adjusting mechanism form.Article two, ventilating duct 19,20 is arranged successively and is positioned at burner body 6, wherein First air passage 19 is conical structure, First air cyclone leaf 25 is equipped with in the rear end of First air passage 19, First air passage 19 forms the inner core of secondary air channel 20 in burner body 6, the inside and outside cylinder of secondary air channel 20 is conical structure, and the rear end of secondary air channel 20 is provided with multiple Secondary Air whirlwind sheet 22.The Secondary Air whirlwind sheet 22 of the rear end setting of secondary air channel, Secondary Air cyclone leaf angle adjuster 5 is installed in the front end of Secondary Air whirlwind sheet 22, by rotating Secondary Air cyclone leaf angle adjuster 5, control the anglec of rotation of Secondary Air whirlwind sheet 22, the adjustment angle of Secondary Air cyclone leaf angle adjuster 5 is 0 °-90 °.
Burner body 6 coal dust rifle 13 is positioned at the center of burner body 6, and the front end of coal dust rifle 13 is provided with coal dust rifle and regulates fixed block 3, and coal dust rifle 13 center is bluff body pull bar 14, and bluff body pull bar 14 front end is provided with compressed air inlet 2.Coal dust rifle 13 is provided with twice adjustable mechanism, one be the distance of cyclone leaf for adjusting pulverized coal outlet and First air passage 19 rear end coal dust gun main body before and after governor motion, two is the bluff body governor motions on coal dust rifle 13; Bluff body pull bar 14 is positioned at the centre of coal dust rifle 13, and bluff body pull bar 14 is tube manufacture, is compressed air channel, and bluff body pull bar 14 head arranges compressed air inlet 2.
Before and after coal dust gun main body, governor motion regulates fixed block 3 and three clamping screws to form by coal dust rifle.
By being arranged on, coal dust robs the first bluff body 15, second bluff body 16 on 13 to bluff body governor motion, the 3rd bluff body 17 3 bluff bodies form, wherein the second bluff body 16 and the 3rd bluff body 17 carry out front and back by screw thread and regulate, distance between adjustment and the first bluff body 15, to adapt to emitted dose and the spray angle of Coal rank.
Gas spraying device of air 18 main body is tubular structure, and the pilot of coal dust rifle 13 forms the inner core of gas spraying device of air 18.Gas spraying device of air 18 is positioned at the outside of pulverized coal gun 13, arranges with pulverized coal gun 13 is concentric.Gas spraying device of air 18 arranges the spray regime of two kinds of natural gases, and one is that the fumarole 24 arranging three row φ 8 at the tail end of gas spraying device of air 18 amounts to 108; Two is draw with the form of gas spraying tracheae 21, and gas spraying tracheae 21 end installs stable flame cover 23 additional, and gas spraying tracheae 21 stretches out the cyclone leaf of First air passage 19 rear end.The gas spraying pore 2 of many natural gas jet pipe 21 and 3 rows 108 φ 8 forms the injection apparatus 18 of natural gas.
Operation principle of the present utility model:
When independent combusting coal fines, coal dust enters coal burner main body 6 by coal powder conveying system coal dust import 1, after coal dust enters coal burner main body 6, via the ejection of coal dust rifle 13 uniformly continous, and forms eddy current at short notice.Because First air passage 19 is conical, rear installs conical cyclone leaf 25 additional, secondary air channel 20 inner/outer tube all coning, rear installs multi-disc Secondary Air whirlwind sheet 22 additional, therefore good aerodynamic field is defined in primary and secondary air passage, make coal dust and air in good time, mix uniformly, not only catch fire rapidly, can also slagging scorification be prevented.The utility model First air is weak rotation, Secondary Air rotation direction and intensity adjustable.By regulating secondary air regulation mechanism, the swirl strength of Secondary Air and air quantity can be made to change.Rotate secondary air duct whirlwind sheet adjusting rod according to combustion conditions simultaneously, the change from 0 ° to 90 ° of the angle of Secondary Air whirlwind sheet 22 can be made, accurately control rotation direction and the swirl strength of Secondary Air.Coordinate and regulate First air governor motion and secondary air regulation mechanism, make First air and Secondary Air reach best mixing point.The primary and secondary air of this invention has good adjusting function, can join combustion air, therefore can adapt to different coals for the coal of different calorific value.
When independent gas-firing, natural gas enters gas spraying device of air 18 by Imported gas 8, again through two kinds of spray regime ejections---one is spray with the form of many gas spraying tracheaes 21, gas spraying tracheae 21 end installs natural gas stable flame cover 23 additional, and natural gas stable flame cover 23 stretches out the cyclone leaf 25 of First air passage rear end; Two is that the three row φ 8 arranged by the end of gas spraying device of air 18 are amounted to 108 gas spraying pores 24 and spray.During this kind of operating mode; bluff body in order to avoid coal dust rifle 13 afterbody is subject to hyperthermia radiation and damages; compressed air being passed into compressed air inlet 2 introduces in bluff body pull bar 14; sprayed with 60 ° of jet angles by the nozzle of the afterbody of bluff body pull bar; form one deck high speed air film; cooling protection is carried out to bluff body, in order to avoid temperature is too high and damage.
Be no matter combusting coal fines or gas-firing time, the angle of Secondary Air cyclone leaf 22 all can carry out motorized adjustment by Secondary Air cyclone leaf angle adjuster 5, makes the result of use that the stove performance supporting with intelligent natural gas, coal dust dual burner reaches best.
The utility model First air accounts for 35% of the required total air of burning, and Secondary Air accounts for 65% of the required total air of burning.Owing to having above-mentioned performance, no matter be burning coal powder or combustion natural gas, all effectively can regulate the size of exit flow angle of flare and recirculating zone, make burner outlet place fuel distributed uniform, air distribution is reasonable, to guarantee timely, the flameholding that catches fire.The existing axis of flame of the present utility model sprays space rate, also has the tangential-velocity component of rotary-jet, and the difference of based on fuel, can also regulate flexibly.Any undisturbed switching can be carried out between two kinds of fuel, thus reach Industrial Stoves and Industrial Boiler continuously, the object of stable, reliability service.
Bottom, burner road 7 connects tertiary air import 12, can be incorporated into herein by the burnt gas of industrial furnace, as tertiary air, cool fire trough 7, and when avoiding single burning coal powder, temperature is too high and produce the phenomenon of coking herein.Meanwhile, spray into fire trough with useless flue gas as tertiary air, can also flame temperature be reduced, avoid the generation of NOx, reach the object of " nitre is controlled in source " with the frame for movement of reasonably optimizing.
Claims (7)
1. an intelligent natural gas, coal dust dual burner, primarily of coal dust firing and combustion of natural gas two parts composition, comprise coal powder conveying system, gas conveying system, burner body, fire trough, coal powder conveying system is connected with burner body by connecting hose, gas conveying system is directly connected with burner body by steel pipe, burner body is communicated with fire trough, it is characterized in that: also comprise gas spraying device of air and ventilating duct;
Described burner body is primarily of coal dust rifle, gas spraying device of air, ventilating duct, air quantity adjusting mechanism composition, described coal dust rifle is positioned at the center of coal burner main body, coal dust rifle is provided with twice adjustable mechanism, one be the distance of cyclone leaf for adjusting pulverized coal outlet and First air passage rear end coal dust gun main body before and after governor motion, two is the bluff body governor motions on coal dust rifle; The bluff body pull bar that bluff body pull bar is positioned at the centre of coal dust rifle is tube manufacture, and be compressed air channel, bluff body rod head arranges compressed air inlet;
Described gas spraying device of air is positioned at the outside of pulverized coal gun, arranges with pulverized coal gun is concentric; Wherein, the pilot of coal dust rifle forms the inner core of gas spraying device of air, and the end of gas spraying device of air is provided with jet mechanism;
Described ventilating duct is set to two, is followed successively by First air passage, secondary air channel, and First air passage is positioned at coal burner center, and First air cyclone leaf is equipped with in the rear end of First air passage; First air passage forms the inner core of secondary air channel in coal burner main body, and the rear end of secondary air channel is provided with the Secondary Air cyclone leaf of adjustable angle.
2. intelligent natural gas according to claim 1, coal dust dual burner, is characterized in that, before and after described coal dust gun main body, governor motion regulates fixed block and three clamping screws to form by coal dust rifle.
3. intelligent natural gas according to claim 1, coal dust dual burner, it is characterized in that, described bluff body governor motion forms by being arranged on first, second, third 3 bluff bodies that coal dust robs, wherein the second bluff body and the 3rd bluff body carry out front and back by screw thread and regulate, distance between adjustment and the first bluff body, to adapt to emitted dose and the spray angle of Coal rank.
4. intelligent natural gas according to claim 1, coal dust dual burner, is characterized in that, described jet mechanism forms by natural gas jet pipe and gas spraying pore the tail end being positioned at gas spraying device of air.
5. intelligent natural gas according to claim 4, coal dust dual burner, is characterized in that, arranges three row's gas spraying pores at the tail end of gas spraying device of air, amounts to 108.
6. intelligent natural gas according to claim 4, coal dust dual burner, it is characterized in that, described natural gas jet pipe is set to many, and the end of many gas spraying tracheaes adds stable flame cover, and many air jet pipes stretch out the cyclone leaf of First air passage rear end respectively.
7. intelligent natural gas according to claim 1, coal dust dual burner, is characterized in that, the inside and outside cylinder of described secondary air channel is respectively conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684856.5U CN205014368U (en) | 2015-09-07 | 2015-09-07 | Intelligent natural gas, dual -purpose combustor of buggy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684856.5U CN205014368U (en) | 2015-09-07 | 2015-09-07 | Intelligent natural gas, dual -purpose combustor of buggy |
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| CN205014368U true CN205014368U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520684856.5U Expired - Fee Related CN205014368U (en) | 2015-09-07 | 2015-09-07 | Intelligent natural gas, dual -purpose combustor of buggy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042595A (en) * | 2015-09-07 | 2015-11-11 | 唐山金沙燃烧热能科技有限公司 | Intelligent natural gas and pulverized coal dual-purpose combustor |
| CN106765098A (en) * | 2017-02-20 | 2017-05-31 | 烟台龙源电力技术股份有限公司 | Gas burner |
-
2015
- 2015-09-07 CN CN201520684856.5U patent/CN205014368U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042595A (en) * | 2015-09-07 | 2015-11-11 | 唐山金沙燃烧热能科技有限公司 | Intelligent natural gas and pulverized coal dual-purpose combustor |
| CN105042595B (en) * | 2015-09-07 | 2017-08-11 | 唐山金沙燃烧热能科技有限公司 | Intelligent natural gas, coal dust dual burner |
| CN106765098A (en) * | 2017-02-20 | 2017-05-31 | 烟台龙源电力技术股份有限公司 | Gas burner |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 064400 No. 655, science and technology road, hi tech Industrial Development Zone, Tangshan City, Hebei, Qian'an Patentee after: Tangshan Jinsha burning heat energy Limited by Share Ltd Address before: 064400 No. 655, science and technology road, Qian'an hi tech Development Zone, Hebei, Tangshan City Patentee before: TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY LIMITED COMPANY |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180907 |