CN201041351Y - Diversion cone type pure smoke-free heat conductive oil boiler - Google Patents
Diversion cone type pure smoke-free heat conductive oil boiler Download PDFInfo
- Publication number
- CN201041351Y CN201041351Y CNU2007200215507U CN200720021550U CN201041351Y CN 201041351 Y CN201041351 Y CN 201041351Y CN U2007200215507 U CNU2007200215507 U CN U2007200215507U CN 200720021550 U CN200720021550 U CN 200720021550U CN 201041351 Y CN201041351 Y CN 201041351Y
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- combustion
- burner hearth
- air port
- flue gas
- time burning
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Abstract
The utility model relates to a guiding cone type pure smokeless thermal conductive oil boiler. A thermal gas cavity is formed between a thermal conductive oil coil pipe and a combustion device, a combustion boiler hearth is arranged at the upper part of the fire grate of the combustion device, an ash chamber is arranged at the lower part, a first combustion-supplying air port is matched with the ash chamber, a high temperature fume outlet opening is arranged on the top of the combustion boiler hearth, a second combustion boiler hearth is arranged on the high temperature fume outlet opening, the transverse section of the second combustion boiler hearth is circular shaped, a guiding cone which is relative to the high temperature fume port is arranged inside the second combustion boiler hearth, the guiding cone is formed by a high temperature fume guiding plate and a top cover at the top of guiding plate which is distributed along the vertical direction and the periphery, and is slantwise arranged along the radial direction, a second combustion-supporting air port is arranged on the second combustion boiler hearth, the second combustion-supporting air port is relative to the tangential direction of the circular shaped second combustion boiler hearth, and is consistent with the guiding direction of the high temperature fume guiding plate, a high temperature gas outlet opening is arranged on the top of the second combustion boiler hearth, and the high temperature gas outlet opening is connected with the thermal gas cavity. The black smoke discharging problem of coal is successfully solved, the thermal efficiency is high, the coal resource is saved, and the environment is protected.
Description
Technical field
The utility model relates to a kind of flow guide conical smokeless heat conductive oil boiler, belongs to industrial thermal equipment.
Background technology
Vertical hand burning type heat conducting oil boiler is a kind of many kinds series of products that generally use in industrial circle, domestic each cauldron factory produces in a large number at present, and market capacity is very big, structure comprises shell, conduction oil coil pipe and burner in the shell, constitute the hot gas body cavity between conduction oil coil pipe and the burner, in the burner, the top of fire grate is a burner hearth, 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, the burner hearth top is provided with the high-temperature flue gas outlet, the high-temperature flue gas that comes up from burner hearth enters the hot gas body cavity from the high-temperature flue gas outlet, and by conduction oil coil pipe heating conduction oil, heated conduction oil medium spreads out of heat.This boiler combustion technology is original, backward, it is very insufficient to burn, a large amount of black smokes of emerging during operation, the flammable composition " fugitive constituent " of preciousness in the coal, account for about 30～35%, almost, be discharged in the atmosphere, cause serious atmosphere pollution by chimney all with the form of cigarette, a large amount of volatilizations of " fugitive constituent " simultaneously also can be taken away a large amount of heat energy, in order to remedy this heat loss, reach the corresponding thermal efficiency, also want in addition some coals that burn more, this tactic pattern, i.e. not environmental protection, not energy-conservation again, can't reach the energy-saving and environmental protection requirement.
Why does so this structure discharge black smoke? because following burner hearth has a large amount of flammable compositions when burning, comprise carbon particle that fugitive constituent (hydrocarbon gas, carbon monoxide) evaporation gets up, coal tar steam etc., because very light weight, be subjected to the effect of " air force " of high temperature gas flow, upwards evaporation motion fast, arrive the boiler upper body, just drum shape conduction oil coil pipe position.We know that the fundamental of completing combustion has 4: 1. necessary ignition temperature; 2. enough air capacities (oxygen); 3. good mixing; 4. abundant enough burning times.Yet at this coil pipe position, because the working medium (conduction oil) in the coil pipe will be absorbed heat in a large number, make that this position temperature is very low, this low temperature environment temperature depends on the heat conduction oil outlet temperature, the boiler user according to the needed technological temperature of various products in the workshop minimum be 120 ℃, 170～200 ℃ of middle temperature, the highest also have only 330 ℃, the ignition temperature of flue gas is more than 700 ℃, so this temperature environment is that the fugitive constituent in the flue gas is burnt, the flammable composition in the opposite high-temperature flue gas can condense in a large number in this low temperature environment and separate out, form the bigger flue dust of particle, be bonded at firmly on the coil pipe, long-pending more thick more, have a strong impact on heat-transfer effect, reduce the heat transfer efficiency of boiler, another part then through flue row to atmosphere, contaminated environment, and constantly stop up the auxiliary device of flue and back.
Therefore, this boiler just because of: 1. do not have enough ignition temperatures; 2. also very inadequate at this position oxygen; 3. the flue gas straight line rises does not have enough mixing; 4. flue gas does not have enough residence times yet.Can not satisfy 4 big key elements of completing combustion, settle finally so the discharging black smoke also just becomes, and become " chronic disease " of this equipment through and through, this is an on record global problem.
The utility model content
The purpose of this utility model is to provide a kind of flow guide conical smokeless heat conductive oil boiler, and is rational in infrastructure, can solve the black fume of coal burning emission problem, realizes the pure smokeless emission of burning gases, saves coal resource, the protection environment.
Flow guide conical smokeless heat conductive oil boiler described in the utility model, comprise shell, conduction oil coil pipe and burner in the shell, constitute the hot gas body cavity between conduction oil coil pipe and the burner, in the burner, the top of fire grate is a burner hearth, 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, the burner hearth top is provided with the high-temperature flue gas outlet, the top of its 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 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.
In the utility model:
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, the 2-6 layer is suitable.
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.
The utility model flow guiding bevel-type pure smokless combustion device; 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:
The high-temperature flue gas that comes up from burner hearth, be subjected to stopping of deflection cone top cover, in deflection cone rapid " accumulation ", because gas has from the physical characteristic of high-pressure side to the low-pressure end diffusion, so the deflector that high-temperature flue gas is provided with by radial skew is diffuses flow in the second-time burning burner hearth fast, and under the guiding of deflector, form and tilt to spray, this moment, the secondary combustion air was injected to comply with round tangential 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 the second-time burning burner hearth.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, bulky grain and subparticle as carbon monoxide, tar steam and flammable carbon, 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 coil 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 800～1000 ℃, 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, 4 big key elements of completing combustion: 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 obtain clean, colourless, tasteless, transparent clean gas, and the air-flow distribution with the rotation form at last ejects from the high-temperature gas outlet, enter the hot gas body cavity, heating conduction oil coil pipe.Sufficient combustion, thermal efficiency height.Because high velocity air has inertia, rotation will continue, and the high temperature gas flow of this burst rotation has also been strengthened the heat-transfer effect with coil pipe simultaneously, has improved the thermal efficiency more.
The utility model flow guide conical smokeless heat conductive oil boiler has solved the black fume of coal burning emission problem well, has realized the pure smokeless emission of burning gases; thermal efficiency height is saved coal resource, and coal saving rate reaches more than 30%; no black smoke discharging, lingemann blackness is 0, has protected environment.
Description of drawings
Fig. 1, existing heat conducting oil boiler structural representation.
Fig. 2, the utility model embodiment 1 are in conjunction with burner burning operating condition schematic diagram.
The capping top view of Fig. 3, deflection cone.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 4, second-time burning hearth portion are divided.
Fig. 5, the utility model conduction oil coil pipe are heated the operating mode schematic diagram.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 6, the utility model embodiment 2 second-time burning hearth portion are divided.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 7, the utility model embodiment 3 second-time burning hearth portion are divided.
Cross-sectional structure and theory of combustion schematic diagram that Fig. 8, the utility model embodiment 4 second-time burning hearth portion are divided.
Fig. 9, the utility model embodiment 5 structural representations.
Among the figure: 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, conduction oil coil pipe 14, top cover 15, high-temperature flue gas deflector 16, high-temperature flue gas outlet 17, burner hearth 18, ashpit 19, air channel 20, straight shape deflector F1, a combustion air F2, secondary combustion air B1, B2, blower fan.
The specific embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
That shown in Figure 2 is the embodiment 1 of flow guide conical smokeless heat conductive oil boiler described in the utility model, comprise metal shell 5, conduction oil coil pipe 13 and burner in the metal shell 5, constitute the hot gas body cavity between conduction oil coil pipe 13 and the burner, in the burner, the top of fire grate 1 is a burner hearth 17, the below of fire grate 1 is grey chamber, add coal stove door 3 with burner hearth 17 corresponding being provided with, the corresponding ashpit 18 that is provided with grey chamber, the ash chamber is furnished with once combustion-supporting air port, provide combustion air by air channel 19, burner hearth 17 tops are provided with high-temperature flue gas outlet 16, above high-temperature flue gas outlet 16, be 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 16 is provided with deflection cone in the second-time burning burner hearth 10, deflection cone is by vertically, high-temperature flue gas deflector 15 that circle distribution and radial skew are provided with and the top cover at deflector top 14 constitute, high-temperature flue gas deflector 15 is arc plate shape (also can be straight plate shape or curved slab shape), the end face of the top cover 14 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 of the combustion-supporting air port of secondary corresponding circle shape cross section, and it is consistent with the guiding of high-temperature flue gas deflector 15, 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 the hot gas body cavity, establish the combustion-supporting air port of secondary in the high-temperature flue gas exit, 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.
The course of work:
As Fig. 2, shown in 4, the high-temperature flue gas 8 that comes up from burner hearth 17, be subjected to the restriction of deflection cone top cover 14, 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 15, 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 the hot gas body cavity, heating conduction oil coil pipe 13.
Shown in Figure 5, the conduction oil coil pipe can adopt coiler solid matter winding process according to the boiler tube of the determined different-diameter of different capacity model, makes drum shape coil pipe, and the multilayer suit forms, and generally is 2 layers.Be heated in the running, the three backhaul routes walking on high-temperature gas is presented along shown in the dotted line that marks among the figure---descending---, heat-transfer effect is good, thermal efficiency height.
That shown in Figure 6 is the embodiment 2 of the burner in the flow guide conical smokeless heat conductive oil boiler described in the utility model, 20 one-tenth straight plate shapes of deflector.
That shown in Figure 7 is the embodiment 3 of flow guide conical smokeless heat conductive oil boiler burner described in the utility model, 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 8 is the embodiment 4 of flow guide conical smokeless heat conductive oil boiler burner described in the utility model, the constructional aspect that the combustion-supporting air channel of secondary number is many.
That shown in Figure 9 is the embodiment 5 of flow guide conical smokeless heat conductive oil boiler burner described in the utility model, and the high-temperature gas outlet is more roomy.
Claims (6)
1. flow guide conical smokeless heat conductive oil boiler, comprise shell, conduction oil coil pipe and burner in the shell, constitute the hot gas body cavity between conduction oil coil pipe and the burner, in the burner, the top of fire grate is a burner hearth, 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, the burner hearth top is provided with the high-temperature flue gas outlet, the top that it is characterized in that the 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 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. flow guide conical smokeless heat conductive oil boiler according to claim 1 is characterized in that the high-temperature flue gas exit is provided with the combustion-supporting air port of secondary.
3. flow guide conical smokeless heat conductive oil boiler according to claim 1 is characterized in that the top cover end face of deflection cone is presented prominent shape.
4. flow guide conical smokeless heat conductive oil 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 flow guide conical smokeless heat conductive oil boilers, it is characterized in that the combustion-supporting air port of secondary 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. flow guide conical smokeless heat conductive oil boiler according to claim 5, it is characterized in that the combustion-supporting air port of secondary the second-time burning burner hearth vertically on be distributed with the 2-6 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200215507U CN201041351Y (en) | 2007-04-28 | 2007-04-28 | Diversion cone type pure smoke-free heat conductive oil boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200215507U CN201041351Y (en) | 2007-04-28 | 2007-04-28 | Diversion cone type pure smoke-free heat conductive oil boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041351Y true CN201041351Y (en) | 2008-03-26 |
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ID=39253058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200215507U Expired - Fee Related CN201041351Y (en) | 2007-04-28 | 2007-04-28 | Diversion cone type pure smoke-free heat conductive oil boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041351Y (en) |
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2007
- 2007-04-28 CN CNU2007200215507U patent/CN201041351Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 |