CN204574021U - The spray gun of fluidized solids fuel - Google Patents
The spray gun of fluidized solids fuel Download PDFInfo
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- CN204574021U CN204574021U CN201520158854.2U CN201520158854U CN204574021U CN 204574021 U CN204574021 U CN 204574021U CN 201520158854 U CN201520158854 U CN 201520158854U CN 204574021 U CN204574021 U CN 204574021U
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- Prior art keywords
- atomization gas
- spray gun
- spout
- interior pipe
- pipe
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- 239000007921 spray Substances 0.000 title claims abstract description 70
- 239000000446 fuel Substances 0.000 title claims abstract description 49
- 239000007787 solid Substances 0.000 title claims abstract description 36
- 238000000889 atomisation Methods 0.000 claims abstract description 108
- 230000008602 contraction Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000004449 solid propellant Substances 0.000 abstract description 33
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000003134 recirculating effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 94
- 238000010586 diagram Methods 0.000 description 19
- 239000002245 particle Substances 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 8
- 239000003570 air Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000002006 petroleum coke Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000037237 body shape Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 living beings Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of spray gun of fluidized solids fuel, namely this spray gun comprises interior pipe, outer tube and atomization gas input pipe, described interior pipe is coaxially sleeved in described outer tube, atomization gas passage is formed between described interior pipe and outer tube, described atomization gas channel end is sealed by shrouding, described atomization gas input pipe is located at described outer tube wall and is communicated with described atomization gas passage, this spray gun also comprises atomization gas shower nozzle and bluff body, described atomization gas shower nozzle is annular and is located at the leading section of described atomization gas passage, described bluff body is located at the spout end of described interior pipe and is positioned at the axis of pipe.This spray gun strengthening atomizing medium mixes with fluidized solids fuel, effective raising solid fuel at high temperature catches fire and steady flame performance, spray gun nozzle forms spray angle, recirculating zone, Ju Nong district and relative rarefaction, improve efficiency of combustion and burn-off rate, reduce energy consumption and pollution, improve product quality, improve furnace service life.
Description
Technical field
The utility model relates to the fuel jetting device of stove, particularly relates to a kind of spray gun of fluidized solids fuel.
Background technology
There is a large amount of thermal-flame kiln in the industries such as glass, non-ferrous metal metallurgy, iron and steel, boiler, petrochemical industry, thermal-flame kiln uses the gaseous fuels such as various natural gas, coal gas, liquefied petroleum gas, mixed gas, various heavy oil, biodiesel, coal tar wet goods liquid fuel, the solid fuels such as all kinds of coal, living beings, petroleum coke.Various gas, liquid or solid fuel combustion not only produce a large amount of pollutants, and the cost of fuel combustion also becomes the heavy burden of enterprise.Seek low stain, cheap alternative fuel and relevant burning solution be reduce costs, the important measures of decreasing pollution.Coal reserves enriches, cheap, at foreseeable future, will be main primary energy source; Biomass fuel has green, reproducing characteristic, is regarded as green energy resource; As the petroleum coke of petroleum industry delayed coking byproduct, have calorific value high, price is low, in many industries as a kind of alternative fuel.
Chinese patent CN201555217U discloses a kind of burner special for petroleum coke powder, and this burner is atomization gas with air and mixes at rifle head with fluidisation state petroleum coke powder, sprays in stove and burns with air.This burner does not carry out selection to atomization gas and screens, and does not also study the potential impact that various atomization gas produces solid fuel ignition, and the impact on product quality and follow-up vent gas treatment; Meanwhile, be difficult to burning due to solid fuel and control, the pollution that burning produces is large, can cause harmful effect to product quality.The burner that this patent discloses occurs that solid fuel is difficult to catch fire, flame black area is long in actual use, and solid fuel ignition is insufficient and have an impact to product quality.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of spray gun of fluidized solids fuel, this spray gun strengthening atomizing medium mixes with fluidized solids fuel, effective raising solid fuel at high temperature catches fire and steady flame performance, spray gun nozzle forms spray angle, recirculating zone, Ju Nong district and relative rarefaction, improve efficiency of combustion and burn-off rate, reduce energy consumption and pollution, improve product quality, improve furnace service life.
For solving the problems of the technologies described above, the spray gun of the utility model fluidized solids fuel comprises interior pipe, outer tube and atomization gas input pipe, described interior pipe is coaxially sleeved in described outer tube, atomization gas passage is formed between described interior pipe and outer tube, described atomization gas channel end is sealed by shrouding, described atomization gas input pipe is located at described outer tube wall and is communicated with described atomization gas passage, this spray gun also comprises atomization gas shower nozzle and bluff body, described atomization gas shower nozzle is annular and is located at the leading section of described atomization gas passage, described bluff body is located at the spout end of described interior pipe and is positioned at the axis of pipe.
Further, the ring section of described atomization gas shower nozzle is provided with annular jet, spaced apart through hole spout or spaced apart U-lag spout, described through hole spout comprises ladder circular hole and/or isometrical circular hole, described ladder circular hole and/or isometrical circular hole interval are arranged, described ladder circular hole and isometrical circular hole are arranged by 1 ~ 3:1 interval on the ring section of described atomization gas shower nozzle, and the U-lag of described U-lag spout is located at the outer ring of described atomization gas shower nozzle.
Further, the diameter macropores of described ladder circular hole and the ratio of hole diameter are 1.01 ~ 100, and the hole diameter of described ladder circular hole and the ratio of described isometrical Circularhole diameter are 0.1 ~ 10.
Further, the through hole spout of described atomization gas shower nozzle or U-lag spout are at least one.
Further, the through hole spout of described atomization gas shower nozzle is that benchmark tilts 60 ° ~-60 ° angles with axis.
Further, the spout end of described interior pipe is equal coupling mouth, contraction mouth, expansion mouth, rectangular opening or oval mouth.
Further, the leading section of the leading section of described atomization gas passage flushes with the spout end of described interior pipe, the leading section of described atomization gas passage protrudes from described interior pipe spout end or described atomization gas passage is positioned on rear side of the spout end of described pipe.
Further, the spout end that described bluff body flushes with the spout end of described interior pipe, described bluff body protrudes from described interior pipe or described bluff body are positioned on rear side of the spout end of described pipe, the shape of described bluff body is taper, taper and cylindrical combination or taper and cylindrical, truncated cone-shaped combine, the cylindrical bottom chamfer of described taper and cylindrical combination.
Further, the bluff body of described taper and cylindrical combination is provided with arc groove at described columniform periphery along axis at intervals.
Further, the front end that this spray gun also comprises mixing chamber, described atomization gas shower nozzle is located at by described mixing chamber, between the spout end diameter of length pipe in 0.01 to 100 times of described mixing chamber, the shape of described mixing chamber is isometrical cylindrical, circular cone reducing shape or circular cone expansion shape.
Because the spray gun of the utility model fluidized solids fuel have employed technique scheme, namely this spray gun comprises interior pipe, outer tube and atomization gas input pipe, described interior pipe is coaxially sleeved in described outer tube, atomization gas passage is formed between described interior pipe and outer tube, described atomization gas channel end is sealed by shrouding, described atomization gas input pipe is located at described outer tube wall and is communicated with described atomization gas passage, this spray gun also comprises atomization gas shower nozzle and bluff body, described atomization gas shower nozzle is annular and is located at the leading section of described atomization gas passage, described bluff body is located at the spout end of described interior pipe and is positioned at the axis of pipe.This spray gun strengthening atomizing medium mixes with fluidized solids fuel, effective raising solid fuel at high temperature catches fire and steady flame performance, spray gun nozzle forms spray angle, recirculating zone, Ju Nong district and relative rarefaction, improve efficiency of combustion and burn-off rate, reduce energy consumption and pollution, improve product quality, improve furnace service life.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the spray gun of the utility model fluidized solids fuel;
Fig. 2 is the schematic diagram that in this spray gun, atomization gas shower nozzle is provided with annular jet;
Fig. 3 is the schematic diagram that in this spray gun, atomization gas shower nozzle is provided with through hole spout;
Fig. 4 is the schematic diagram that in this spray gun, atomization gas shower nozzle is provided with U-lag spout;
Fig. 5 is ladder circular hole and the spaced apart schematic diagram of isometrical circular hole of atomization gas shower nozzle in this spray gun;
Fig. 6 is the spaced apart schematic diagram of isometrical circular hole of atomization gas shower nozzle in this spray gun;
Fig. 7 is that generalized section is arranged at the ladder circular hole of atomization gas shower nozzle in this spray gun and isometrical circular hole interval;
Fig. 8 sprays first isometrical circular hole for atomization gas in this spray gun and arranges schematic diagram;
Fig. 9 is the schematic diagram that the through hole spout of atomization gas shower nozzle in this spray gun is obliquely installed;
Figure 10 is the generalized section of Fig. 9;
Figure 11 be in this spray gun in the spout end of pipe be the schematic diagram of equal coupling mouth;
Figure 12 is the spout end of interior pipe in this spray gun is the schematic diagram of contraction mouth;
Figure 13 is the spout end of interior pipe in this spray gun is the schematic diagram expanding mouth;
Figure 14 is the spout end of interior pipe in this spray gun is the schematic diagram of rectangular opening;
Figure 15 be in this spray gun in the spout end of pipe be the schematic diagram of oval mouth;
Figure 16 is the schematic diagram that in this spray gun, bluff body flushes with the spout end of interior pipe;
Figure 17 is the schematic diagram of the spout end of pipe in bluff body indentation in this spray gun;
Figure 18 is the schematic diagram that in this spray gun, bluff body gives prominence to the spout end of interior pipe;
Figure 19 is that in this spray gun, bluff body shape is the schematic diagram of taper;
Figure 20 is that in this spray gun, bluff body shape is the schematic diagram of taper and cylindrical combination;
Figure 21 is that in this spray gun, bluff body shape is the schematic diagram that taper and cylindrical, truncated cone-shaped combine;
Figure 22 is the surperficial schematic diagram being provided with arc groove of bluff body of taper and cylindrical combination;
Figure 23 is the generalized section of Figure 22;
Figure 24 is the structural representation that this spray gun is provided with mixing chamber.
Detailed description of the invention
Embodiment 1 as shown in Figure 1, the spray gun of the utility model fluidized solids fuel comprises interior pipe 1, outer tube 2 and atomization gas input pipe 3, described interior pipe 1 is coaxially sleeved in described outer tube 2, atomization gas passage 4 is formed between described interior pipe 1 and outer tube 2, described atomization gas passage 4 end is sealed by shrouding 5, described atomization gas input pipe 3 is located at described outer tube 2 wall and is communicated with described atomization gas passage 4, this spray gun also comprises atomization gas shower nozzle 6 and bluff body 7, described atomization gas shower nozzle 6 is annular and is located at the leading section of described atomization gas passage 4, described bluff body 7 is located at the spout end of described interior pipe 2 and is positioned at the axis of pipe 2.
When this spray gun uses, fluidized solids fuel enters interior pipe and is sprayed by spout end, atomization gas sprays through atomization gas shower nozzle after entering the atomization gas passage between interior pipe and outer tube by atomization gas input pipe, and fluidized solids fuel and atomization gas mix and burn in stove; Atomization gas input pipe can be vertical with outer tube or become arbitrarily angled setting between 0-180 degree.The bluff body arranged in interior pipe makes fluidized solids fuel spray at a certain angle, due to the particular law of hydrodynamics and movement of particles, fluidized solids fuel forms certain recirculation zone, solid fuel particle go out interruption-forming local particle aggregation area with high mercury and Particle Phase to sparse low concentration region.Atomization gas medium is except selecting conventional air, more mainly can select purity oxygen, oxygen concentration higher than 20.9% the various gaseous fuel such as oxygen-enriched air, natural gas, liquefied petroleum gas, coke-stove gas, coal gas, also water vapour etc. can be selected, in the flow velocity of the atomization gas medium scope between 0 ~ 300m/s; Solid fuel can select various coal dust, petroleum coke powder, biomass granule fuel etc., and to manage in strength liquid flash calciner to this spray gun; The medium of strength liquid flash calciner solid fuel particle can adopt air, nitrogen or various fuel gas, and fuel gas comprises oxygen-enriched air, the CO of various oxygen concentration
2or the tail gas, pure oxygen and the CO that produce after various gas-solid liquid fuel combustion
2the oxygen concentration that tail gas after burning mixes 5 ~ 100% gas or main component comprise O
2/ CO
2/ N
2the gaseous mixture of composition; The medium of Geldart-D particle can be normal temperature, also can carry out preheating, and temperature range contains-10 DEG C ~ 1300 DEG C.Fluidized solids flow in fuel can be in concentrated phase, each fluidised form of dilute phase of Geldart-D particle, the mass ratio of pure solid fuel and liquid flash calciner medium in 600 to 0.1 scopes, in the flow velocity of the fluidized solids flow in fuel scope between 2 ~ 300m/s.
This spray gun can form specific fluidized solids fuel flow field, speed and distribution of particles, atomization gas dielectric distribution etc., carry out mixed combustion, when the atomization gas medium ejection of different in flow rate is burnt with fluidized solids fuel mix, atomization gas medium is while control solid fuel flame length, strengthening atomization gas medium mixes with solid-fuelled, helps solid fuel at high temperature to catch fire and steady flame.
Select special atomization gas medium, as oxygen and oxygen-enriched air, it has strong oxidisability, can greatly reduce solid-fuelled ignition point, contributes to catching fire and steady flame, improves efficiency of combustion and controls flame forms.Usual gaseous fuel ignition point is much lower compared with solid fuel, and can carry out safety and stability igniting under normal temperature environment, also contributes to solid-fuelled igniting, steady flame, and ignition trigger at ambient temperature.
Bluff body in this spray gun forms certain spray angle, recirculating zone, the dense region of solid fuel particle localized clusters and relative sparse region at solid fuel nozzle, according to the theory of catching fire of solid fuel ignition, these special fluidised forms and distribution of particles reduce solid fuel particle ignition temperature, and can control the flame characteristics after catching fire.The improvement of solid fuel flammability and the form such as the length of flame and Temperature Distribution, can improve efficiency of combustion and burn-off rate, reduces energy consumption and cost, improves product quality, increases furnace service life.
Owing to using the above-mentioned atomization gas medium of special selection, the fluidizing agent of solid fuel strength conveying, during in conjunction with oxygen enrichment or all-oxygen combustion, in the tail gas after burning, nitrogen gas concn reduces greatly, thus can carry out CO
2catch sum purify, carry out CO
2geological storage and other application.Realize Air Pollutant Emission close to zero, or zero-emission completely, be conducive to environmental protection.
Preferably, as shown in Figures 2 to 6, the ring section of described atomization gas shower nozzle 6 is provided with annular jet 61, spaced apart through hole spout 62 or spaced apart U-lag spout 63, described through hole spout 62 comprises ladder circular hole 621 and/or isometrical circular hole 622, described ladder circular hole 621 and/or isometrical circular hole 622 interval are arranged, described ladder circular hole 621 and isometrical circular hole 622 are arranged by 1 ~ 3:1 interval on the ring section of described atomization gas shower nozzle 6, and the U-lag of described U-lag spout 63 is located at the outer ring of described atomization gas shower nozzle 6.
Atomization gas shower nozzle arranges the passage of spout as atomization gas medium of various shape, as atomization gas medium spray at a high speed from isometrical circular hole time, its speed is much larger than the speed of fluidized solids fuel; In ladder circular hole, atomization gas medium at a high speed slows down gradually, is near or below the speed of fluidized solids fuel at exit velocity; Thus forming the atomization gas medium stream of the large speed difference of high/low two class, atomization gas medium at a high speed ensure that length and the rigidity of flame, and speed forms strong mix with fluidized solids fuel compared with the atomization gas medium at the end near spout.Compared with prior art, the advantage of this structure is can the simultaneously control of real flame black area and length and adjustment.
On atomization gas shower nozzle, the layout of through hole spout can be selected, and can uniform or local cypher arrange, the through hole spout that local cypher is arranged can be ladder circular hole, also can be isometrical circular hole; This structure can ensure solid fuel Thorough combustion more, avoids the solid fuel particle not having enough time to burn to pollute material in stove, and forms the higher region of a temperature in the place of material in stove.
Preferably, as shown in Figure 7, the diameter macropores d2 of described ladder circular hole 621 and the ratio of hole diameter d1 are 1.01 ~ 100, and the hole diameter d1 of described ladder circular hole 621 and the ratio of described isometrical circular hole 622 diameter d 3 are 0.1 ~ 10.
Preferably, as shown in Figure 8, the through hole spout 62 of described atomization gas shower nozzle 6 or U-lag spout are at least one.
Preferably, as shown in Figure 9 and Figure 10, the through hole spout 62 of described atomization gas shower nozzle 6 is that benchmark tilts 60 ° ~-60 ° angles with axis.Through hole spout and the angled setting of axis, make directive fluidized solids fuel atomizing gas medium be broken up by solid fuel, promotes mixing and burning.
Preferably, as shown in Figure 11 to Figure 15, the spout end of described interior pipe 1 is equal coupling mouth 11, contraction mouth 12, expansion mouth 13, rectangular opening 14 or oval mouth 15.Fuel nozzle ports selects equal coupling mouth, contraction mouth or expansion mouth, can control the jet length of solid fuel flow stock jet, thus control the length of flame.The spout of rectangle or ellipse, form wide/height than the flat flame being greater than 1, its homogeneous heating performance is better than the flame of plain cylindrical form, thus improves the uniformity of heating, improves product quality.
Preferably, as shown in Figure 1, the leading section of the leading section of described atomization gas passage 4 flushes with the spout end of described interior pipe 1, the leading section of described atomization gas passage 4 protrudes from described interior pipe 1 spout end or described atomization gas passage 4 is positioned on rear side of the spout end of described pipe 1.Select, optimize the relative position of atomization gas Channel front end portion and interior pipe spout, mixing of atomization gas and fuel can be controlled further, and the position of flame black area.
Preferably, as shown in Figure 16 to Figure 18, the spout end that described bluff body 7 flushes with the spout end of described interior pipe 1, described bluff body 7 protrudes from described interior pipe 1 or described bluff body 7 are positioned on rear side of the spout end of described pipe 1; As shown in Figure 19 to Figure 21, the shape of described bluff body is taper 71, taper 71 combine with cylindrical 72 or taper 71 is combined with cylindrical 72, truncated cone-shaped 73, described taper 71 and the cylindrical 72 cylindrical 72 bottom chamferings combined.The placement location of bluff body and the difference of shape, the solid fuel spray angle of formation and recirculation zone position, area size are different.
Preferably, as shown in Figure 22 and Figure 23, described taper 71 is provided with arc groove 74 at the described periphery of cylindrical 72 along axis at intervals with cylindrical 72 bluff bodies combined.Arc groove expands the surface area that solid fuel flow stock contacts with high-temp combustion tail gas with atomization gas, contributes to solid-fuelled igniting, and improves the burn-off rate of solid fuel particle.
Embodiment 2, on the basis of embodiment 1, as shown in figure 24, the front end that this spray gun also comprises mixing chamber 8, described atomization gas shower nozzle 6 is located at by described mixing chamber 8, between the spout end diameter of length pipe 1 in 0.01 to 100 times of described mixing chamber 8, the shape of described mixing chamber 8 is isometrical cylindrical, circular cone reducing shape or circular cone expansion shape.
This spray gun enhances the mixing of atomization gas medium, solid fuel and high-temperature tail gas near spout by the atomization gas shower nozzle of particular design, the solids backflow that bluff body is formed is set in solid fuel passage, both actings in conjunction, and by selecting the atomization gas medium of special characteristics, as the oxygen of strong oxidisability or the excellent gaseous fuel etc. of ignition performance, fundamentally solve solid fuel and be difficult to catch fire and the problem of smooth combustion.
On atomization gas shower nozzle, the spout layout of various shape and quantity carries out particular design simultaneously, more spout is arranged in the position of heating object material in stove, by means of the property of atomization gas medium, as the strong oxidisability or the low ignitability of gaseous fuel etc. of pure oxygen, by solid fuel Thorough combustion more, improve material and product quality.
Claims (10)
1. the spray gun of a fluidized solids fuel, comprise interior pipe, outer tube and atomization gas input pipe, described interior pipe is coaxially sleeved in described outer tube, atomization gas passage is formed between described interior pipe and outer tube, described atomization gas channel end is sealed by shrouding, described atomization gas input pipe is located at described outer tube wall and is communicated with described atomization gas passage, it is characterized in that: this spray gun also comprises atomization gas shower nozzle and bluff body, described atomization gas shower nozzle is annular and is located at the leading section of described atomization gas passage, described bluff body is located at the spout end of described interior pipe and is positioned at the axis of pipe.
2. the spray gun of fluidized solids fuel according to claim 1, it is characterized in that: the ring section of described atomization gas shower nozzle is provided with annular jet, spaced apart through hole spout or spaced apart U-lag spout, described through hole spout comprises ladder circular hole and/or isometrical circular hole, described ladder circular hole and/or isometrical circular hole interval are arranged, described ladder circular hole and isometrical circular hole are arranged by 1 ~ 3:1 interval on the ring section of described atomization gas shower nozzle, and the U-lag of described U-lag spout is located at the outer ring of described atomization gas shower nozzle.
3. the spray gun of fluidized solids fuel according to claim 2, it is characterized in that: the diameter macropores of described ladder circular hole and the ratio of hole diameter are 1.01 ~ 100, the hole diameter of described ladder circular hole and the ratio of described isometrical Circularhole diameter are 0.1 ~ 10.
4. the spray gun of fluidized solids fuel according to claim 2, is characterized in that: through hole spout or the U-lag spout of described atomization gas shower nozzle are at least one.
5. the spray gun of fluidized solids fuel according to claim 2, is characterized in that: the through hole spout of described atomization gas shower nozzle is that benchmark tilts 60 ° ~-60 ° angles with axis.
6. the spray gun of fluidized solids fuel according to claim 1, is characterized in that: the spout end of described interior pipe is equal coupling mouth, contraction mouth, expansion mouth, rectangular opening or oval mouth.
7. the spray gun of fluidized solids fuel according to claim 1, is characterized in that: the leading section of the leading section of described atomization gas passage flushes with the spout end of described interior pipe, the leading section of described atomization gas passage protrudes from described interior pipe spout end or described atomization gas passage is positioned on rear side of the spout end of described pipe.
8. the spray gun of fluidized solids fuel according to claim 1, it is characterized in that: the spout end that described bluff body flushes with the spout end of described interior pipe, described bluff body protrudes from described interior pipe or described bluff body are positioned on rear side of the spout end of described pipe, the shape of described bluff body is taper, taper and cylindrical combination or taper and cylindrical, truncated cone-shaped combine, the cylindrical bottom chamfer of described taper and cylindrical combination.
9. the spray gun of fluidized solids fuel according to claim 8, is characterized in that: the bluff body of described taper and cylindrical combination is provided with arc groove at described columniform periphery along axis at intervals.
10. the spray gun of fluidized solids fuel according to claim 1, it is characterized in that: the front end that this spray gun also comprises mixing chamber, described atomization gas shower nozzle is located at by described mixing chamber, between the spout end diameter of length pipe in 0.01 to 100 times of described mixing chamber, the shape of described mixing chamber is isometrical cylindrical, circular cone reducing shape or circular cone expansion shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158854.2U CN204574021U (en) | 2015-03-20 | 2015-03-20 | The spray gun of fluidized solids fuel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158854.2U CN204574021U (en) | 2015-03-20 | 2015-03-20 | The spray gun of fluidized solids fuel |
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| CN204574021U true CN204574021U (en) | 2015-08-19 |
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| CN107603282A (en) * | 2017-10-13 | 2018-01-19 | 天津市欣跃涂料有限公司 | A kind of combination spray gun |
| CN107763663A (en) * | 2016-08-23 | 2018-03-06 | 翼特新能源科技（上海）有限公司 | Solid fuel combustion apparatus and its application method |
| CN108194922A (en) * | 2017-12-29 | 2018-06-22 | 乔治洛德方法研究和开发液化空气有限公司 | A kind of oxygen-enriched burner of adjustable flame |
| CN108930960A (en) * | 2018-07-25 | 2018-12-04 | 汪建军 | A kind of bluff body of environmental protection coal burner |
| CN110567280A (en) * | 2019-09-04 | 2019-12-13 | 中国恩菲工程技术有限公司 | oxidation-reduction gun and oxidation-reduction furnace with same |
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2015
- 2015-03-20 CN CN201520158854.2U patent/CN204574021U/en not_active Expired - Fee Related
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| CN107763663A (en) * | 2016-08-23 | 2018-03-06 | 翼特新能源科技（上海）有限公司 | Solid fuel combustion apparatus and its application method |
| CN106196039A (en) * | 2016-08-29 | 2016-12-07 | 煤科院节能技术有限公司 | A kind of slotted blunt |
| CN106196039B (en) * | 2016-08-29 | 2018-05-25 | 煤科院节能技术有限公司 | A kind of slotted blunt |
| CN107603282A (en) * | 2017-10-13 | 2018-01-19 | 天津市欣跃涂料有限公司 | A kind of combination spray gun |
| CN108194922A (en) * | 2017-12-29 | 2018-06-22 | 乔治洛德方法研究和开发液化空气有限公司 | A kind of oxygen-enriched burner of adjustable flame |
| CN108930960A (en) * | 2018-07-25 | 2018-12-04 | 汪建军 | A kind of bluff body of environmental protection coal burner |
| CN110567280A (en) * | 2019-09-04 | 2019-12-13 | 中国恩菲工程技术有限公司 | oxidation-reduction gun and oxidation-reduction furnace with same |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |