CN102287818B - Passage structure for burning equipment and heat-storing type burning equipment - Google Patents
Passage structure for burning equipment and heat-storing type burning equipment Download PDFInfo
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- CN102287818B CN102287818B CN201110172968.9A CN201110172968A CN102287818B CN 102287818 B CN102287818 B CN 102287818B CN 201110172968 A CN201110172968 A CN 201110172968A CN 102287818 B CN102287818 B CN 102287818B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention provides a passage structure for burning equipment and heat-storing type burning equipment, wherein the passage structure comprises a high-temperature gas passage, a heat-storing box and a low-temperature gas passage, wherein the heat-storing box comprises a heat-storing box body and a heat-storing body which is arranged inside the heat-storing box body, one end of the heat-storing box body is provided with the low-temperature gas passage connected with a pipeline, and the other end of the heat-storing box body is provided with the high-temperature gas passage connected with a burning-furnace body. The heat-storing type burning equipment comprises the burning-furnace body as well as an air passage and a fuel-gas passage which are arranged in pairs, a fuel-gas spout which is connected with the fuel-gas passage and an air spout which is connected with the air passage are correspondingly arranged on the furnace body, and the passage structure is adopted by the air passage and/or the fuel-gas passage. The sectional area of the gas passage is large, and the heat-exchanging gas quantity is large.
Description
Technical field
The present invention relates to a kind of heat-accumulation combustion equipment, refer in particular to a kind of can be by empty, coal gas simultaneously or carry out separately accumulation of heat heat exchange, with channel design and the heat storage type combustion equipment of the combustion apparatus that carries out burning under high temperature.
Background technology
Regenerative heat-exchange combustion technology is an ancient heat exchange mode, and 19th-century just adopts and continues into the present mid-term on open hearth and blast furnace.In rolling system breaking down operation for just once occurring amco soaking pit on the soaking pit of Heating Steel Ingots, and adopt be exactly low-calorie blast furnace gas be fuel.Effects of regenerative heat exchanging technology, belongs to unstable state and conducts heat, and utilizes refractory material to make carrier, alternately by waste-gas heat, heated, then the heat that heat storage is stored adds hot-air or coal gas, makes air and coal gas obtain high temperature preheating, reaches the usefulness of Waste Heat Recovery.
Heat-accumulation combustion equipment is that in high temperature air regenerative combustion technology, indispensable equipment forms.In modern Regenerative Combustion Technology, heat-accumulation combustion device combination commutating device, and use can form a set of high-temperature heat accumulation combustion system in pairs.But existing heat-accumulation combustion equipment is subject to the restriction of structure and reversing mode, mostly be to embed body of heater, and the gas exchange capacity of individual equipment is less, what on insulation construction, adopt is integrated poured mode, for example, when the gas exchange capacity for single heat storage tank (is greater than 6000Nm greatly
3when/h), correspondingly the cross section of heat storage tank is also large, (be for example greater than 1m
2), adopt said structure can not meet the demand in use.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of channel design and heat storage type combustion equipment of combustion apparatus are provided, and it is the solution under a kind of atmospheric exchange capacity, and energy structure improves or solve the one or more defect of prior art.
Technical solution of the present invention is: a kind of channel design of combustion apparatus, this channel design comprises high temperature gas passage, heat storage tank and cryogenic gas passage, described heat storage tank comprises accumulation of heat casing and the inner heat storage arranging thereof, one end of described accumulation of heat casing is provided with the described cryogenic gas passage being connected with pipeline, and its other end is provided with the described high temperature gas passage joining with burner block.
The channel design of combustion apparatus as above, wherein, the first end scattering device of this heat storage tank has a plurality of described cryogenic gas passages, and the outlet that described cryogenic gas passage is positioned at heat storage tank is also provided with structure air-flow to dispersion rectified action.
The channel design of combustion apparatus as above, wherein, described high temperature gas passage and accumulation of heat casing are together to make to stay to establish, and described high temperature gas passage and accumulation of heat casing top inner wall are provided with adiabatic liner as insulation construction.
The channel design of combustion apparatus as above, wherein, the sectional area of described heat storage tank is greater than 1m
2.
The channel design of combustion apparatus as above, wherein, the integrated poured structure of the sidewall of described accumulation of heat casing for adopting the cast of high-strength light castable to form, and adopt heat resisting steel anchoring hook as anchoring piece.
The channel design of combustion apparatus as above, wherein, described accumulation of heat casing adopts fibre module ceiling structure ，Qi top to adopt refractory fibre as working lining and heat insulation layer, with heat resisting steel anchoring piece, be suspended on top metal skeleton, and intermodule adopts heat resisting steel member interspersed fixing.
The channel design of combustion apparatus as above, wherein, described high temperature gas passage and accumulation of heat casing top inner wall are provided with adiabatic liner as insulation construction, the sidewall of described accumulation of heat casing is the integrated poured structure of castable, sidewall adopts the cast of high-strength light castable, with heat resisting steel anchoring hook as anchoring piece, described accumulation of heat casing adopts fibre module ceiling structure, its top adopts resistant to elevated temperatures refractory fibre as working lining and heat insulation layer, with heat resisting steel anchoring piece, be suspended on top metal skeleton, and it is fixing between each fibre module, to adopt heat resisting steel member to intert.
The present invention also proposes a kind of heat storage type combustion equipment, it comprises burner block and the air duct and the blast tube that arrange in pairs, corresponding combustion gas spout for joining with blast tube and the air port for joining with air duct of being provided with on described body of heater, wherein, described air duct and/or blast tube adopt above-described channel design.
Heat storage type combustion equipment as above, wherein, the high temperature gas passage of described air duct and/or blast tube and burner block curve the ，Qie connecting part that joins and have flexible sealing structure.
Heat storage type combustion equipment as above, wherein, it is setting up and down with corresponding air port and tilt to cross that described burner block is positioned at combustion gas spout that homonymy is used in conjunction with.
Heat storage type combustion equipment as above, wherein, has 30～90 ° of large angles of cut between described air port and combustion gas spout.
Heat storage type combustion equipment as above, wherein, the width of described air port and combustion gas spout is similar or equate.
Heat storage type combustion equipment as above, wherein, is provided with convex rectifier structure between described combustion gas spout setting up and down, air port, forms rectifier type spout combining structure.
Heat storage type combustion equipment as above, wherein, the high temperature gas passage of described air duct and/or blast tube and burner block curve the ，Qie connecting part that joins and have flexible sealing structure; Between described air port and combustion gas spout, there are 30～90 ° of large angles of cut; The width of described air port and combustion gas spout is similar or equate.
The features and advantages of the invention are as follows:
The invention provides heat storage type combustion under a kind of high temperature and can be by empty, coal gas simultaneously or the heat-accumulation combustion equipment that carries out separately accumulation of heat heat exchange.This equipment both can, separately for preheated air or for preheating gas, also can, to air and coal gas preheating simultaneously, be organized burning, and also be can be used as flue gas waste heat recovery equipment simultaneously.
In order to be applicable to the service condition of atmospheric exchange capacity, the present invention adopts sky, the coal gas independence heat storage tank structure with high temperature gas passage, for heavy in section gas converting heat, that dispersible air intake heat storage tank, not only rational in infrastructure, and the inner lining structure insulation effect of sidewall cast and fibre module furred ceiling is good, large angle of cut space gas rectification spout has good rectified action.By the enforcement of above-mentioned technology, the present invention has realized and has adopted monomer heat storage tank to carry out the heat storage type combustion of atmospheric exchange capacity, is to application of regenerative combustion technology a technological break-through.
Sky of the present invention, gas double heat-accumulation combustion equipment be specially adapted to use low-heat value gas as fuel, adopt high-temperature heat accumulation combustion technology for the firing equipment of the steel rolling industry of heating, the thermal efficiency is high, safe and reliable, result of use is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of heat-accumulation combustion equipment of the present invention.
Fig. 2 is the schematic top plan view of the heat-accumulation combustion equipment in Fig. 1.
Fig. 3 is the partial structurtes schematic diagram of the accumulation of heat casing of a specific embodiment employing of the present invention, has mainly shown castable and fibre module combined inner lining structural representation.
Fig. 4 is the model schematic diagram that the large angle of cut is empty, coal gas crosses rectification spout up and down that a specific embodiment of the present invention adopts.
The main label declaration of accompanying drawing:
11,11 ', high temperature gas passage 12,12 ', heat storage tank 13,13 ', cryogenic gas passage
101, body of heater 102, bell 103, combustion gas spout
103 ', air port 105,105 ', spout section 107,107 ', linkage section
108, bulge-structure 120, accumulation of heat casing 121, heat storage
123, shell 124, adiabatic liner 125, fibre module
126, heat resisting steel member 127, sidewall 122, metallic framework
The specific embodiment
Coordinate drawings and the specific embodiments to be described in further detail the specific embodiment of the present invention below.
The present invention proposes a kind of channel design of combustion apparatus, this channel design comprises high temperature gas passage, heat storage tank and cryogenic gas passage, described heat storage tank comprises accumulation of heat casing and the inner heat storage arranging thereof, one end of described accumulation of heat casing is provided with the described cryogenic gas passage being connected with pipeline, and its other end is provided with the described high temperature gas passage joining with burner block.
Those skilled in the art can understand, and above-mentioned channel design can be applied to air duct and/or the blast tube of combustion apparatus.In a preferred embodiment of the present invention, this channel design is applied to blast tube, and the first end scattering device of regenerator gas case has a plurality of cryogenic gas passages.
Preferably, aforementioned high temperature gas passage and burner block curve and join, and flexible sealing processing is carried out in the two connecting part.
Accumulation of heat casing comprises metallic framework, shell and inner adiabatic liner.High temperature gas passage and accumulation of heat casing are together to make to stay to establish, and described high temperature gas passage is interior and accumulation of heat casing top inner wall is provided with adiabatic liner as insulation construction.
The sidewall of accumulation of heat casing is the integrated poured structure of castable, and further, its sidewall can adopt the high-strength light castable cast that intensity is high, thermal conductivity factor is low, and available heat resisting steel anchoring hook is as anchoring piece.
Preferably, accumulation of heat casing is to adopt fibre module ceiling structure, particularly, that its top adopts is lightweight, thermal conductivity factor is low, resistant to elevated temperatures special type fire fiber is as working lining and heat insulation layer, with heat resisting steel anchoring piece, be suspended on top metal skeleton, and intermodule adopts heat resisting steel member interspersed fixing.Certainly, the structure of accumulation of heat casing is not limited in this, and for example ，Qi top also can adopt the material identical with wall box and version.
The present invention also proposes a kind of heat storage type combustion equipment, it comprises burner block and the air duct and the blast tube that arrange in pairs, corresponding combustion gas spout for joining with blast tube and the air port for joining with air duct of being provided with on described body of heater, wherein, air duct and/or blast tube adopt aforementioned channel design arbitrarily.
Preferably, it is setting up and down with corresponding air port and tilt to cross that burner block is positioned at combustion gas spout that homonymy is used in conjunction with.Further, between air port and combustion gas spout, there are 45 ° of large angles of cut, the high-temp combustion that is conducive to sky, coal gas under atmospheric flow under state fast, fully mix, and for the uniformity of temperature field in furnace Temperature Distribution.
Preferably, between air port setting up and down, combustion gas spout, be provided with the rectifier structure that is semi-cylindrical projection, form rectifier type spout combining structure, so that the burning of air-flow mixes better, mobile resistance is less.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme to channel design of the present invention and heat storage type combustion equipment is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, it is the structural representation of a specific embodiment of heat-accumulation combustion equipment of the present invention, the channel design 10 that the combustion apparatus of the present embodiment adopts comprises high temperature gas passage 11, heat storage tank 12 and cryogenic gas passage 13, heat storage tank 12 comprises accumulation of heat casing 120 and the inner heat storage 121 arranging thereof, accumulation of heat casing 120 one end is provided with the cryogenic gas passage 13 being connected with pipeline (not shown), its other end is provided with the high temperature gas passage 11 joining with burner block 101, please in the lump in conjunction with shown in Fig. 3, the outlet top that cryogenic gas passage 13 is positioned at accumulation of heat casing 120 is also provided with structure air-flow to dispersion rectified action, for example can adopt and be inverted funnel-cap type porous honeycomb screen, so that the air-flow entering is disperseed to rectification.
Those skilled in the art can understand, and above-mentioned channel design can be applied to air duct and/or the blast tube of combustion apparatus.In this embodiment of the present invention, this channel design is applied to blast tube and air duct simultaneously, and in a preferred embodiment, the first end scattering device of this regenerator gas case has a plurality of cryogenic gas passages 13.
As shown in Figure 2, in the present embodiment, this high temperature gas passage 11 is to curve and join with burner block 101, as shown in Figure 2, high temperature gas passage 11 is connected to burner block 101 after twice bending, can effectively absorb structural stress and the strain that high temperature channel at high temperature produces because of temperature expansion like this; In addition, the two A place, connecting part is carried out to flexible sealing processing, to guarantee sealing effectiveness.Concrete structure and the technique as for flexible sealing, processed, those skilled in the art can adopt prior art to realize completely, repeats no more herein.
Shown in Fig. 3, it is the partial structurtes schematic diagram of the accumulation of heat casing of a specific embodiment employing of the present invention, has mainly shown castable and fibre module combined inner lining structural representation.This accumulation of heat casing 120 comprises metallic framework 122, shell 123 and inner adiabatic liner 124.Refer to Fig. 3, high temperature gas passage 11 is together to make to stay to establish with accumulation of heat casing 120, and described high temperature gas passage is interior and accumulation of heat casing top inner wall is provided with adiabatic liner 124 as insulation construction.
As shown in Figure 3, the sidewall 127 of accumulation of heat casing is preferably the integrated poured structure of castable, further, its sidewall can adopt the high-strength light castable that intensity is high, thermal conductivity factor is low (such as light mullite pouring material etc.) cast, and available heat resisting steel anchoring hook 129 is as anchoring piece.
Preferably, accumulation of heat casing 120 is to adopt fibre module ceiling structure 125, particularly, its top adopts lightweight, resistant to elevated temperatures refractory fibre as the fire-resistant working lining and the thermal insulating warm-keeping layer that contact with high-temperature gas, be preferably 1350 ℃ of above special type fire fibers of heatproof, with heat resisting steel anchoring piece 129, be suspended on top metal skeleton 121, and 125 of each fibre modules adopt heat resisting steel member 126 interspersed fixing.Certainly, this accumulation of heat casing 120 top also can adopt the material identical with sidewall and structure, as adopts the mode of integrated poured or sequential casting, repeats no longer one by one herein.
In conjunction with Fig. 1, Fig. 2, the structure of heat storage type combustion equipment of the present invention and principle are elaborated again.
Heat storage type combustion equipment of the present invention comprises the first gas passage, the second gas passage arranging in pairs on body of heater 101 and sidewall of the furnace body, and this first gas passage and the second gas passage all can be selected the channel design that adopts previous contents to introduce.In this specific embodiment shown in Fig. 1, Fig. 2, heat storage type combustion equipment is with sky, the coal gas independence heat storage tank structure of high temperature gas passage, as shown in the figure, this blast tube comprises high temperature gas passage 11, heat storage tank 12 and cryogenic gas passage 13, accordingly, this air duct comprises high temperature gas passage 11 ', heat storage tank 12 ' and cryogenic gas passage 13 ', owing to having described the concrete structure of passage above in detail, no longer describes in detail herein.
In addition, shown in Fig. 4, between the combustion gas spout 103 that high temperature gas passage 11,11 ' burner block 101 homonymies and this blast tube, air duct is connected, air port 103 ', form spout combining structure empty, that combustion gas crosses up and down, be beneficial to high-temp combustion under atmospheric flow status fast, fully mix.
In a specific embodiment of the present invention, the combustion gas spout 103 of burner block 101 is the setting up and down and formation spout combining structure that tilts to cross with air port 103 '.
Again in conjunction with the combination feature of aforementioned channels structure and body of heater, because each high temperature gas passage is to curve and join with body of heater 101, therefore, burner block 101 has spout section 105,105 ' corresponding and the inclination that each straight high temperature gas passage 11,11 ' joins, two spout sections 105,105 ' tilt to intersect, and form spout combining structure.Preferably, for the ease of joining smoothly of body of heater and each channel design, in the present embodiment, between two spout sections 105,105 ' and two high temperature gas passages 11,11 ', this burner block is also provided with straight linkage section 107,107 ', two linkage sections 107,107 ' are parallel to each other, and are in the vertical direction relation setting up and down.
In specific embodiments of the invention, two spout sections 105,105 ' centreline space have the large angle of cut being preferably between 30～90 °, for example can adopt the large angle of cut of approximately 45 °, thereby the high-temp combustion that is conducive to sky, coal gas under atmospheric flow status fast, fully mix, and can improve the uniformity of temperature field in furnace Temperature Distribution.
The high-temp combustion of, coal gas empty in order further to strengthen fast, fully mixes and improves the uniformity of temperature field in furnace Temperature Distribution under atmospheric flow status, air port 103 ' is preferably and keeps close or equate with the width of combustion gas spout 103, in height there is no specific requirement, can determine as required.
It is better for the burning of air-flow is mixed, mobile resistance is less, in the present invention, this spout combining structure is preferably rectifier type spout combining structure, that is combustion gas spout 103 setting up and down, between air port 103 ', be provided with rectifier structure, form rectifier type spout structure, this rectifier structure is preferably the structure with level and smooth convex surface, it can be for example arcuation convex surface, be preferably semi-cylindrical bulge-structure 108 as shown in Figure 4, certainly, also can be polygon and carry out the convex surface that smoothing processing is crossed, as can be trapezoidal, the formation such as triangle seamlessly transit convex surface, this arcuation convex surface is positioned between combustion gas spout 103 and air port 103 ', thereby the better high-quality that is conducive to air-flow mixes.
The invention provides a kind of heavy in section, atmospheric exchange capacity heat-accumulation combustion equipment, the heat storage tank that it adopts monomer, makes the internal channel size of area of section can be greater than 1m
2, can be 1.5m
2above, in one embodiment of the invention, reach 2.88m
2, the exchange capacity of gas can reach 12000Nm
3/ h, this is that existing heat storage type combustion equipment cannot be realized.
By said structure, those skilled in the art can understand, and the present invention is combustion heating equipment, is also high-temperature flue gas waste heat recovery apparatus simultaneously:
When as combustion heating equipment, cryogenic gas (as coal gas or air) is independently fed from pipeline respectively, through the heat storage heat exchange in heat storage tank, obtain the gas of high temperature, from high temperature gas passage, pass in stove afterwards, near spout, make air and coal gas mixed combustion, complete the function of combustion apparatus.
When as high-temperature flue gas waste heat recovery apparatus, the high-temperature flue gas that burning is produced sucks from nozzle respectively, by high temperature gas passage, pass in heat storage tank, pass through afterwards the heat storage heat exchange in heat storage tank, the waste heat of high-temperature flue gas is recycled, by pipeline and air-introduced machine (not shown), low temperature waste gas is discharged in atmosphere again.
Seen from the above description, the present invention has following characteristics:
1. with sky, the coal gas independence heat storage tank structure of high temperature gas passage
Owing to having adopted independently heat storage tank pattern, make the heat storage tank casing that can adopt volume larger; Between furnace high-temperature flue gas and heat storage tank, stay the passage of having established high-temperature flue gas, and this high temperature gas passage and heat storage tank together make to stay and establish, high temperature gas passage is with adiabatic liner.Under high flue-gas temperature effect, high temperature gas passage can expand, in order to absorb expansion, the impact of eliminate expanding structure being caused, passage and body of heater curve and join, and the position joining at passage and body of heater, carried out flexible encapsulation process, the adverse effect of bringing to eliminate high temperature.
2. with the heavy in section heat storage tank that disperses air intake passage
Because the exchange capacity of this kind of heat storage tank gas in the unit interval (can reach 12000Nm greatly
3/ h), so the area of section of casing is super large also, the basal area of insulation construction internal channel gas communication (as in Fig. 2 with profile in the heat storage tank as shown in dotted line B) can reach 2.88m
2.Unbalanced in order to eliminate the heat exchange that flow on gas communication section and flow velocity difference causes, finally can there is the problem of bias current or heat storage permeate gas stream, on the admission passage of cryogenic gas, adopted the technology of disperseing air intake and space reduction of speed pressure adjustment, the flow deviation and the pressure divergence that produce when realizing atmospheric exchange capacity.
3. the combining structure of sidewall cast and fibre module furred ceiling
In order to guarantee service life and the insulation effect of high-temperature heat accumulation case, at the top of heat storage tank, adopted lightweight, thermal conductivity factor is low, resistant to elevated temperatures special type fire fiber is as working lining and heat insulation layer.Sidewall has adopted the high-strength light castable cast that intensity is high, thermal conductivity factor is low, thereby can give full play to the advantage of two kinds of resistance to materials, and the inner lining structure of heavy in section heat storage tank is made in combination.
4. the large angle of cut space gas rectification spout that crosses up and down
The large angle of cut adopting in embodiments of the invention (as 45 °) is empty, coal gas crosses up and down, and rectification spout is the brand new of a heat storage type combustion spout, the angle of this spout angle of cut is large, the high-temp combustion that is conducive to sky, coal gas under atmospheric flow status fast, fully mix, and be conducive to improve the uniformity of temperature field in furnace Temperature Distribution.And the spout with rectified action is according to the emulation of hydrodynamics and simulated combustion mechanism, spout is formed and meet hydromechanical design feature.Meanwhile, can disperse the high-temperature region of spout burning, make the Temperature Distribution of burning and the distribution of air-flow better.
Although the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art; in the displacement that does not depart from the equivalent assemblies of having done under the prerequisite of the spirit and scope of the present invention; or the equivalent variations of doing according to scope of patent protection of the present invention and modification, all should still belong to the category that this patent is contained.
Claims (11)
1. a heat storage type combustion equipment, it comprises burner block and the air duct and the blast tube that arrange in pairs, corresponding combustion gas spout for joining with blast tube and the air port for joining with air duct of being provided with on described body of heater, it is characterized in that, the channel design that described air duct and/or blast tube adopt comprises high temperature gas passage, heat storage tank and cryogenic gas passage, described heat storage tank comprises accumulation of heat casing and the inner heat storage arranging thereof, one end of described accumulation of heat casing is provided with the described cryogenic gas passage being connected with pipeline, its other end is provided with the described high temperature gas passage joining with burner block, the high-temperature gas obtaining through heat storage tank passes in stove thus, and in stove, complete mixing, burning, form empty, coal gas independence heat storage tank structure, it is setting up and down with corresponding air port and tilt to cross that described burner block is positioned at combustion gas spout that homonymy is used in conjunction with, described combustion gas spout setting up and down, between air port, be provided with convex rectifier structure, form rectifier type spout combining structure, so that the burning of air-flow mixes better, mobile resistance is less.
2. heat storage type combustion equipment as claimed in claim 1, is characterized in that, the high temperature gas passage of described air duct and/or blast tube and burner block curve the ，Qie connecting part that joins and have flexible sealing structure.
3. heat storage type combustion equipment as claimed in claim 1, it is characterized in that, between described air port and combustion gas spout, there are 30～90 ° of large angles of cut, the high-temp combustion that is conducive to sky, coal gas under atmospheric flow status fast, fully mix, and for the uniformity of temperature field in furnace Temperature Distribution.
4. heat storage type combustion equipment as claimed in claim 1, is characterized in that, described air port equates with the width of combustion gas spout.
5. heat storage type combustion equipment as claimed in claim 4, is characterized in that, the high temperature gas passage of described air duct and/or blast tube and burner block curve the ，Qie connecting part that joins and have flexible sealing structure; Between described air port and combustion gas spout, there are 30～90 ° of large angles of cut, the high-temp combustion that is conducive to sky, coal gas under atmospheric flow status fast, fully mix, and for the uniformity of temperature field in furnace Temperature Distribution.
6. heat storage type combustion equipment as claimed in claim 1, it is characterized in that, the first end scattering device of this heat storage tank has a plurality of described cryogenic gas passages, and the outlet that described cryogenic gas passage is positioned at heat storage tank is also provided with structure air-flow to dispersion rectified action.
7. heat storage type combustion equipment as claimed in claim 1, is characterized in that, described high temperature gas passage and accumulation of heat casing are together to make to stay to establish, and described high temperature gas passage and accumulation of heat casing top inner wall are provided with adiabatic liner as insulation construction.
8. heat storage type combustion equipment as claimed in claim 1, is characterized in that, the sectional area of described heat storage tank is greater than 1m
2.
9. heat storage type combustion equipment as claimed in claim 1, is characterized in that, the integrated poured structure of the sidewall of described accumulation of heat casing for adopting the cast of high-strength light castable to form, and adopt heat resisting steel anchoring hook as anchoring piece.
10. heat storage type combustion equipment as claimed in claim 1, it is characterized in that, described accumulation of heat casing adopts fibre module ceiling structure, its top adopts refractory fibre as working lining and heat insulation layer, with heat resisting steel anchoring piece, be suspended on top metal skeleton, and intermodule adopts heat resisting steel member interspersed fixing.
11. heat storage type combustion equipment as claimed in claim 6, it is characterized in that, described high temperature gas passage and accumulation of heat casing top inner wall are provided with adiabatic liner as insulation construction, the sidewall of described accumulation of heat casing is the integrated poured structure of castable, sidewall adopts the cast of high-strength light castable, with heat resisting steel anchoring hook as anchoring piece, described accumulation of heat casing adopts fibre module ceiling structure, its top adopts resistant to elevated temperatures refractory fibre as working lining and heat insulation layer, with heat resisting steel anchoring piece, be suspended on top metal skeleton, and it is fixing between each fibre module, to adopt heat resisting steel member to intert.
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| CN106705046B (en) * | 2017-01-24 | 2019-03-29 | 重庆沃克斯科技股份有限公司 | Low nitrogen nitride heat accumulating type flat-flame burner |
| CN110207103B (en) * | 2019-04-15 | 2021-08-27 | 周应进 | Heat control device for combustion furnace |
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| CN102287818A (en) | 2011-12-21 |
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