CN100520169C - Conical guide smokeless vertical steam boiler - Google Patents
Conical guide smokeless vertical steam boiler Download PDFInfo
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- CN100520169C CN100520169C CNB2007100159605A CN200710015960A CN100520169C CN 100520169 C CN100520169 C CN 100520169C CN B2007100159605 A CNB2007100159605 A CN B2007100159605A CN 200710015960 A CN200710015960 A CN 200710015960A CN 100520169 C CN100520169 C CN 100520169C
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- burner hearth
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- time burning
- flue gas
- temperature flue
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Abstract
This invention relates to a diversion cone smokeless vertical steam boiler, a thermal equipment, including shell, curved pipes and combustion devices, on the top of the combustion chamber has narrow high temperature gas export, above the high temperature gas export is the secondary combustion chamber, the cross section of the secondary combustion chamber is circular, in the corresponding of the high temperature gas export has diversion cone in the secondary combustion chamber, diversion cone is formed by the vertical, circular and radial distribution of the tilt set high-temperature gas plate and the top of the roof plate, secondary combustion chamber has secondary combustion tuyere, secondary combustion tuyere correspond circular cross section of the secondary combustion chamber tangent direction, and with the high temperature smoke plate of airflow direction consistent , on the top of secondary combustion chamber has high temperature gas export, high temperature gas export connect hot gas chamber. A rational structure, solve the problem of coal-smoke emission, carry out smokeless combustion gas emission, high thermal efficiency, conservation of coal resources and the environment.
Description
Technical field
The present invention relates to a kind of conical guide smokeless vertical steam boiler, belong to industrial thermal equipment.
Background technology
At present, it is bigger that vertical hand burns the possession share of steam boiler on market, relatively be typically the vertical bent water tube boiler of LSG series, structure comprises shell, curved water pipe and burner, the excurvation water pipe places smoke box, constitute the hot gas body cavity between the interior curved water pipe, the below of hot gas body cavity is the burner hearth of burner, the below of burner hearth is a fire grate, the below of fire grate is grey chamber, be provided with corresponding with burner hearth adds coal stove door, the corresponding ashpit that is provided with grey chamber, and grey chamber is furnished with once combustion-supporting air port, the high-temperature flue gas that comes up from burner hearth enters the hot gas body cavity from the high-temperature flue gas outlet, curved water pipe is heated, thereby add water in the hot bending water pipe, obtain water vapour.This boiler is several times to improve a kind of more advanced product that evolving development gets up on the basis of original old-fashioned boiler, bigger radiation heating-surface and convection heating surface are arranged, exhaust gas temperature is lower, " design thermal efficiency is higher " of boiler, according to this structural principle, derive simultaneously tandem product again with multiple model, capacity model between 0.2t/h-2t/h is more, also have some capacity bigger again also be to adopt this structure, drawing and manufacturing inspection operative norm are made in the typing that each boiler for producing producer all has national Ministry of Labour to issue.
In this boiler, whole excurvation water pipes of flue gas transversal flow and interior curved water pipe, and flow process is very long, this design is favourable to improving heat transfer efficiency, but system is easy to dust stratification, although designed ash removing opening, but for normal the heat transfer makes the stable operation of boiler, " the blowing out deashing " that the user is constant, for enterprise workshop in the running is a bigger difficult problem, so though when boiler design, consider as much as possible to improve heat transfer efficiency, in actual use, because dust stratification is serious, the real thermal efficiency is not high.
This boiler is advanced in the design of " pot ", and whole heat transfer system has enough heat transfer areas to flue gas; What use in the design of " stove " but is the combustion technology of original backwardness, in order to reach the rated output power of design, the boiler of this model all is the bituminous coal that uses the opium big fire, so all be that black smoke is billowing during operation, not only waste energy, also contaminated environment, dense flue gas is cooled off by anxious gathering in the good water cooling tube system of conducting heat, the coal tar of a large amount of evaporating states and carbochain body condense rapidly and separate out, be bonded on boiler tube and other all heat-exchange surfaces, long-pending more thick more, be difficult to remove, seriously influence heat-transfer effect, the BTHE that makes boiler is far below theoretical design thermal efficiency.
Obviously, if " stove " that be not complementary do not have " advanced combustion technology ", " advanced boiler " comes even Xian Jin " pot " do not manufacture yet again.
Summary of the invention
The object of the present invention is to provide a kind of conical guide smokeless vertical steam boiler, rational in infrastructure, can solve the black fume of coal burning emission problem, realize the pure smokeless emission of burning gases, thermal efficiency height is saved coal resource, the protection environment.
Conical guide smokeless vertical steam boiler of the present invention, comprise shell, curved water pipe and burner, the excurvation water pipe places smoke box, constitute the hot gas body cavity between the interior curved water pipe, the below of hot gas body cavity is the burner hearth of burner, the below of burner hearth is a fire grate, the below of fire grate is grey chamber, be provided with corresponding with burner hearth adds coal stove door, the corresponding ashpit that is provided with grey chamber, the ash chamber is furnished with once combustion-supporting air port, its burner hearth top is provided with the high-temperature flue gas outlet of dwindling, the top of high-temperature flue gas outlet is provided with the second-time burning burner hearth, the cross section of second-time burning burner hearth is rounded, corresponding high-temperature flue gas outlet is provided with deflection cone in the second-time burning burner hearth, deflection cone is by vertically, the high-temperature flue gas deflector that circle distribution and radial skew are provided with and the top cover at deflector top constitute, the second-time burning burner hearth is provided with the combustion-supporting air port of secondary, the tangential direction of the second-time burning burner hearth of the combustion-supporting air port of secondary corresponding circle shape cross section, and it is consistent with the air-flow guiding of high-temperature flue gas deflector, the top of second-time burning burner hearth is provided with the high-temperature gas outlet, and the high-temperature gas outlet is communicated with the hot gas body cavity.
Among the present invention:
Establish the combustion-supporting air port of secondary in the high-temperature flue gas exit, strengthen combustion-supporting and perturbation action, promote the swirling flow burning.
The top cover end face of deflection cone can be designed be flat, be preferably designed as prominent shape, comprise prominent arc shape, last prominent cone-shaped etc., reduce gas-flow resistance, prevent the air-flow dead angle, be beneficial to swirling flow and burn.Deflection cone can be made by refractory material and heating resisting metal material (as heat-resisting cast iron, heat-resistance stainless steel etc.).
The high-temperature flue gas deflector can be designed to multiple shape, straight plate shape, arc plate shape, curve ruler shape etc.The quantity of deflector can be adjusted flexibly according to actual conditions, and low power equipment can lack, and powerful equipment can be more.
Do not wait according to the scale situation, the combustion-supporting air port of secondary can distribute a plurality of on the circular cross section of second-time burning burner hearth, and 2-10 suitable, and the air channel that is communicated with the combustion-supporting air port of secondary is communicated with on annular cloth wind box; In like manner, the combustion-supporting air port of secondary the second-time burning burner hearth vertically on the multilayer that also can distribute, 2-6 layers are suitable.
Can also set up the auxiliary air port of a combustion air that distributes on every side on the hearth wall of burner hearth, promote burning, 2-10 combustion airs that can distribute are assisted the air port, can be distributed on the same cross section, also can be dispersed on the different cross sections.
Annular cloth wind box, in " between waist " formation " annular passage " of burner, all secondary combustion airs all provide wind regime by " annular passage ", the pressure of wind is provided by equipped blower fan, blower fan can connect three-phase alternating-current supply, also can realize frequency control by frequency converter, finishes air quantity and regulates.
Flow guiding bevel-type pure smokless combustion device of the present invention; rational in infrastructure; can solve coal-fired over-emitting black exhaust problem; realize the pure smokeless emission of burning gases, lingemann blackness is zero, has saved coal resource; improved the thermal efficiency; energy-conservation reaching more than 30% protected environment again, economic benefit and obvious social benefit.
Operation principle:
One time combustion air passes fire grate and enters burner hearth from the fire grate top, promote coal combustion, the flammable flue gas that produces high concentration in the combustion process enters deflection cone, under the barrier effect of deflection cone top cover, through the deflection cone deflector direction is changed, produce turning moment, and and the secondary that enters the second-time burning burner hearth helps right wind, the direction unanimity, the two unification forms one and rotates the stirring air-flow consumingly, because contain a large amount of oxygen in this strand air-flow, the flammable volatility product that does not have after-flame in a large amount of burner hearths is below arranged again in the high-temperature flue gas, as carbon monoxide, the bulky grain of tar steam and flammable carbon and subparticle, or the like all inflammable substances, all will in the second-time burning burner hearth, implement to mix consumingly, having under reasonable and the enough oxygen and high temperature, all after-flame up hill and dale.Simultaneously because the heat-blocking action between refractory lining and the interior curved water pipe, make that the temperature in this space is very high, imflammable gas is under this condition simultaneously, carry out oxidizing fire fiercely, temperature is improved more, reach more than 1000 ℃, this has just strengthened effect of combustion more, owing to be spiral track route, this just makes imflammable gas that enough residence times have been arranged, the elemental that completing combustion is essential: 1. necessary temperature; 2. enough combustion-supporting oxygen; 3. good stirring and mixing; 4. enough residence times.In this combustion mechanism, embody just rightly, flawless, the whole after-flames of all combustibles, condensing of no coal tar and carbochain body obtains clean, colourless, tasteless, transparent clean gas, and the inertia by high velocity air ejects from the high-temperature gas outlet with the air-flow distribution of rotating form at last, enter the hot gas body cavity, add the hot bending water pipe.Sufficient combustion, thermal efficiency height.The high temperature gas flow of this burst rotation has also been strengthened the heat-transfer effect with curved water pipe simultaneously, has improved the thermal efficiency more.
Add the stainless steel heat-resistant fiber in the refractory lining of second-time burning fire box, both strengthened the elevated temperature strength of furnace lining, can adjust the thermal conductivity factor of inner lining material again, both can keep this regional trouble-free burning temperature, guarantee heat transfer efficiency again, the two gets both.So, the burning of " cleaning " of the present invention makes the part of " pot " thoroughly eliminate dust stratification.
Conical guide smokeless vertical steam boiler of the present invention has solved the black fume of coal burning emission problem well, has realized the pure smokeless emission of burning gases; thermal efficiency height; save coal resource, coal saving rate reaches 30%, and lingemann blackness is 0; with the naked eye do not observe at all; discharge without any flue dust, reach pure smokeless operational effect, and fully need not any dust arrester; environment has been protected in no black smoke discharging.
Description of drawings
Fig. 1, existing vertical steam boiler structural representation.
The vertical view of Fig. 2, Fig. 1.
Fig. 3, the embodiment of the invention 1 are in conjunction with burner burning operating condition schematic diagram.
Two body structure schematic diagrames of Fig. 4, the embodiment of the invention 1.
The capping top view of Fig. 5, deflection cone.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 6, second-time burning hearth portion are divided.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 7, the embodiment of the invention 2 second-time burning hearth portion are divided.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 8, the embodiment of the invention 3 second-time burning hearth portion are divided.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 9, the embodiment of the invention 4 second-time burning hearth portion are divided.
Among the figure: a, add coal stove door b, curved water pipe c, hot gas body cavity d, shell e, smoke box f, aditus laryngis g, chimney h, manhole 1, fire grate 2, coal-fired 3, add coal stove door 4, refractory lining 5, metal shell 6, insulation material 7, annular cloth wind box 8, high-temperature flue gas 9, the combustion-supporting air channel 10 of secondary, second-time burning burner hearth 11, high-temperature gas outlet 12, high-temperature gas 13, smoke box 14, hot gas body cavity 15, curved water pipe 16, top cover 17, high-temperature flue gas deflector 18, high-temperature flue gas outlet 19, burner hearth 20, the auxiliary air port 21 of combustion air, ashpit 22, air channel 23, straight shape deflector F1, a combustion air F2, secondary combustion air B1, B2, blower fan.
The specific embodiment
The invention will be further described in conjunction with the foregoing description accompanying drawing.
That shown in Figure 3 is the embodiment 1 of conical guide smokeless vertical steam boiler of the present invention, comprise metal shell 5, curved water pipe and burner, the excurvation water pipe places smoke box 13, constitute hot gas body cavity 14 between the interior curved water pipe, the below of hot gas body cavity 14 is the burner hearth 19 of burner, the below of burner hearth 19 is a fire grate 1, the below of fire grate 1 is grey chamber, add coal stove door with burner hearth 19 corresponding being provided with, the corresponding ashpit 21 that is provided with grey chamber, the ash chamber is furnished with once combustion-supporting air port, the hearth wall surrounding of burner hearth 19 also is distributed with the auxiliary air port 20 of combustion air one time, provide combustion air by air channel 22, with burner hearth 19 top design is the high-temperature flue gas outlet of dwindling 18, the top of high-temperature flue gas outlet 18 is provided with second-time burning burner hearth 10, the cross section of second-time burning burner hearth 10 is rounded, corresponding high-temperature flue gas outlet 18 is provided with deflection cone in the second-time burning burner hearth 10, deflection cone is by vertically, high-temperature flue gas deflector 17 that circle distribution and radial skew are provided with and the top cover at deflector top 16 constitute, high-temperature flue gas deflector 17 is arc plate shape (also can be straight plate shape or curved slab shape), the end face of the top cover 16 of deflection cone is curved, second-time burning burner hearth 10 is provided with the combustion-supporting air port of secondary, the tangential direction of the second-time burning burner hearth 10 of the combustion-supporting air port of secondary corresponding circle shape cross section, and it is consistent with the air-flow guiding of high-temperature flue gas deflector 17, the top of second-time burning burner hearth 10 is provided with high-temperature gas outlet 11, high-temperature gas outlet 11 is communicated with hot gas body cavity 14, export 18 places at high-temperature flue gas and also establish the combustion-supporting air port of secondary, the combustion-supporting air channel 9 of secondary that is communicated with the combustion-supporting air port of secondary is communicated with on annular cloth wind box 7.
As shown in Figure 4, the present invention can be two body structures, upper furnace body and lower furnace body can be divided into two unit to be made separately, fabrication and installation are convenient, be convenient for changing maintenance, upper furnace body comprises the part that deflection cone is above, and the part below the upper furnace body is a lower furnace body, adpting flange is set respectively on last lower furnace body, assembles by flange and form.On the plane between two bodies of heater up and down, place " alumina silicate needle punched blanket " and, seal during assembling, will go up lower flange with bolt then and tighten fixing getting final product as mat.
In the practice, can directly use typing drawing, manufacturing process and the test stone of the LSG series of products of the national Ministry of Labour promulgation of above narrating.Adjust a lower fire grating, grey chamber and fire door, be made into lower furnace body two parts, convenient enforcement.The furnace lining high-temperature flame-proof pouring material of second-time burning burner hearth adds an amount of stainless steel heat-resistant fiber, gains in strength.Make the built-in mould of cast with book iron plate according to true form and size during the upper furnace body construction, the combustion-supporting eddy flow of secondary air channel is welded with heat resisting steel, strict alignment is wanted in the combustion-supporting air channel of upper furnace body and lower furnace body, goes above leading to swimmingly with the combustion air that guarantees lower furnace body.Put into stir water material feeding with the jolt ramming of plug-in type vibrating head, and note insulation and maintenance.
The course of work: as Fig. 3, shown in 6, one time combustion air enters burner hearth, promote fired coal combustion, the high-temperature flue gas 8 that comes up from burner hearth 19, be subjected to the restriction of deflection cone top cover 16, in deflection cone rapid " accumulation ", because gas has from the physical characteristic of high-pressure side to the low-pressure end diffusion, so high-temperature flue gas 8 passes through water conservancy diversion cone-plate diffuses flow in second-time burning burner hearth 10 fast, and under the guiding of high-temperature flue gas deflector 17, form and tilt to spray (clockwise direction), this moment, the secondary combustion air was injected to comply with direction with certain pressure and flow velocity again, the unification of two power has formed the high temperature swirling flow of rotation at a high speed in second-time burning burner hearth 10.Because contain a large amount of oxygen in this strand air-flow, all inflammable substances such as flammable volatility product that do not have after-flame in a large amount of burner hearths are below arranged again in the high-temperature flue gas, all will in the second-time burning burner hearth, implement to mix consumingly, having under reasonable and the enough oxygen and high temperature, whole after-flames up hill and dale, form " pure water white transparency " high-temperature gas 12 that does not contain any flammable composition then, air-flow with the rotation form distributes from upwards injection of high-temperature gas outlet 11, enter hot gas body cavity 14, add hot bending water pipe 15, water in the curved water pipe 15 is heated, obtains steam.
That shown in Figure 7 is the embodiment 2 of the burner in the conical guide smokeless vertical steam boiler of the present invention, 23 one-tenth straight plate shapes of deflector.
That shown in Figure 8 is the embodiment 3 of conical guide smokeless vertical steam boiler burner of the present invention, and the high-temperature flue gas deflector oppositely is provided with, and makes high-temperature flue gas under the guiding of high-temperature flue gas deflector, forms anticlockwise inclination and sprays.
That shown in Figure 9 is the embodiment 4 of conical guide smokeless vertical steam boiler burner of the present invention, the constructional aspect that the combustion-supporting air channel of secondary number is many.
Cloth wind box can be passed through in each combustion-supporting air channel, realizes that as required cloth wind distributes, and provides cloth pneumatic power by same power source, simplifies auxiliary equipment.Air feed system can be equipped with the automation frequency-changing control system, realizes automation mechanized operation.Mode as the available frequency control of adjusting of wind supply quantity solves, that is changes the method control wind supply quantity of the rotating speed of blower fan by the frequency that changes fan power.Utilize flue gas sensor (the industrial electronic retail department all has commercially available), as zirconium dioxide flue gas sensor, it presents " gas sensitive effect " to carbon monoxide, as long as it is exactly anoxic that flue gas is arranged, as long as anoxic just certainly leads to carbon monoxide, so the content of detection CO gas how much, also just directly reflected " air distribution coefficient " and the combustion conditions of combustion apparatus inside.The content of CO gas is become on the voltage signal input terminal that voltage signal is input to frequency converter, can utilize the voltage signal controlled frequency to change, the frequency conversion out-put supply is exactly the power supply of air blast.
Claims (8)
1, a kind of conical guide smokeless vertical steam boiler, comprise shell, interior curved water pipe, excurvation water pipe and burner, the excurvation water pipe places smoke box, constitute the hot gas body cavity between the interior curved water pipe, the below of hot gas body cavity is the second-time burning burner hearth, the below of second-time burning burner hearth is the burner hearth of burner, the below of burner hearth is a fire grate, the below of fire grate is grey chamber, be provided with corresponding with burner hearth adds coal stove door, the corresponding ashpit that is provided with grey chamber, the ash chamber is furnished with once combustion-supporting air port, it is characterized in that the burner hearth top is provided with the high-temperature flue gas outlet of dwindling, the top of high-temperature flue gas outlet is provided with described second-time burning burner hearth, the cross section of second-time burning burner hearth is rounded, corresponding high-temperature flue gas outlet is provided with deflection cone in the second-time burning burner hearth, deflection cone is by vertically, the high-temperature flue gas deflector that circle distribution and radial skew are provided with and the top cover at high-temperature flue gas deflector top constitute, the second-time burning burner hearth is provided with the combustion-supporting air port of secondary, the tangential direction of the circular cross section of the corresponding second-time burning burner hearth in the combustion-supporting air port of secondary, and it is consistent with the air-flow guiding of high-temperature flue gas deflector, the top of second-time burning burner hearth is provided with the high-temperature gas outlet, and the high-temperature gas outlet is communicated with the hot gas body cavity.
2, conical guide smokeless vertical steam boiler according to claim 1 is characterized in that the high-temperature flue gas exit at burner hearth top also is provided with the combustion-supporting air port of secondary.
3, conical guide smokeless vertical steam boiler according to claim 1 is characterized in that the top cover end face of deflection cone is presented prominent shape.
4, conical guide smokeless vertical steam boiler according to claim 1 is characterized in that the high-temperature flue gas deflector is curved.
5, according to claim 1,2,3 or 4 described conical guide smokeless vertical steam boilers, it is characterized in that the combustion-supporting air port of secondary in the second-time burning burner hearth is distributed with 2-10 on the circular cross section of second-time burning burner hearth, the air channel that is communicated with the combustion-supporting air port of secondary is communicated with on annular cloth wind box.
6, conical guide smokeless vertical steam boiler according to claim 5, it is characterized in that in the second-time burning burner hearth the combustion-supporting air port of secondary the second-time burning burner hearth vertically on be distributed with 2-6 layers.
7, conical guide smokeless vertical steam boiler according to claim 1 is characterized in that the hearth wall of burner hearth is distributed with the auxiliary air port of combustion air on every side one time.
8, conical guide smokeless vertical steam boiler according to claim 7 is characterized in that the auxiliary air port of a described combustion air that distributes around the hearth wall of burner hearth has 2-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100159605A CN100520169C (en) | 2007-06-16 | 2007-06-16 | Conical guide smokeless vertical steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100159605A CN100520169C (en) | 2007-06-16 | 2007-06-16 | Conical guide smokeless vertical steam boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074768A CN101074768A (en) | 2007-11-21 |
| CN100520169C true CN100520169C (en) | 2009-07-29 |
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ID=38975969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100159605A Expired - Fee Related CN100520169C (en) | 2007-06-16 | 2007-06-16 | Conical guide smokeless vertical steam boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN100520169C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328099B (en) * | 2017-08-17 | 2023-09-15 | 成都佳达农业科技发展有限公司 | Biomass hot-blast stove and full-automatic biomass hot-blast stove |
| CN110470055B (en) * | 2019-08-30 | 2020-12-25 | 嘉兴北化高分子助剂有限公司 | High-efficient conduction oil boiler |
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2007
- 2007-06-16 CN CNB2007100159605A patent/CN100520169C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101074768A (en) | 2007-11-21 |
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Granted publication date: 20090729 Termination date: 20100616 |