CN203980277U - Reverse gas infrared radiation device - Google Patents
Reverse gas infrared radiation device Download PDFInfo
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- CN203980277U CN203980277U CN201420361632.6U CN201420361632U CN203980277U CN 203980277 U CN203980277 U CN 203980277U CN 201420361632 U CN201420361632 U CN 201420361632U CN 203980277 U CN203980277 U CN 203980277U
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Abstract
The utility model discloses a kind of reverse gas infrared radiation device, comprise casing and radiation generator, the induction tunnel of radiation generator and burning portion are in the atmospheric pressure storehouse of casing, atmospheric pressure storehouse and high-pressure chamber are communicated with, the storehouse internal gas pressure of high-pressure chamber is greater than atmospheric pressure, the utility model is realized small-power reverse combustion, the semiclosed cabin body design in atmospheric pressure storehouse, and the cooling effect that makes high-pressure chamber import air is significantly optimized.
Description
Technical field
The utility model relates to industry heating, and dry field, relates in particular to and be applied to a kind of industry heating, the reverse gas infrared radiation device in dry processing.
Background technology
Utilizing the fuel factor principle of infrared ray to large molecule water body resonance cracking, carry out evaporate to dryness processing with infrared radiation for material, is the common technology in current industry heating field.It is low that the relative air convection drying of this technology has energy consumption, the advantage that dry mass is good.
In practice, the production method of infrared radiation is mainly divided into: two kinds of modes of the radiation of electric ceramic plate and electric heating infrared fluorescent tube.Both all adopt electric energy conversion is heat-energy secondary HEATING INFRARED radiation carrier.Energy causes more energy consumption through multiple conversions.Obviously, more economical with the radiation of combustion gas mode Heat of Formation.
In prior art, gas-fired infrared radiation generator mainly comprises: infrared emitter from bottom to top the forward radiant burner of radiation material and infrared ray by radiation source from left and right sides the antenna with side radiation direction burner to radiation material.And rarely has the from top to bottom reverse Gas-fired Radiator in Municipal of radiation material of radiation source.In practice, what conventionally material to be processed is lain low is placed on processing conveyer belt, and the heating of accepting radiant burner by heating work region with load mode is dried.
Concerning infrared ray autoradiolysis source from bottom to top the forward gas-fired infrared radiator of radiation material: intercept and have conveyer belt between radiation source and material to be processed, conveyer belt bears ultrared direct radiation, material to be processed bears radiation indirectly across conveyer belt, cannot realize the direct radiation of infrared ray, heat drying efficiency is on the low side; And concerning infrared ray autoradiolysis source by the gas-fired infrared radiator of side lateral radiation material: material is away from radiation source, and heat drying effect is undesirable.
The radiation source from top to bottom reverse Gas-fired Radiator in Municipal of radiation material can solve above-mentioned two technological deficiencies.Design reverse Gas-fired Radiator in Municipal and need to solve two technical problems: 1. reverse combustion will cause pre-mixing gas combustion to pour into from burner plate top, how control the input speed of pre-mixing gas combustion and the balance of burning velocity; 2. how to suppress heat and upwards conduct, control the temperature of gas-fired infrared radiator and prevent that pre-mixing gas combustion from lighting and exploding in radiator inner side.
The reverse infrared radiator of prior art adopts mechanical air intake mode, constantly blasts air stream from top to bottom with high-power air blast, and air stream drives combustion gas to burn at combustion front,, with flame heating of metal net, make wire netting transmitting infrared waves.The air stream that high-power air blast blasts from the metallic walls of internal cooling infrared radiator, prevents that metallic walls excess Temperature from lighting pre-mixing gas combustion in bearing combustion-supporting immixture.For ensureing cooling effect, the air stream blasting must possess suitable flow velocity.
There is negative interaction as described below in this technical scheme: 1. the speed of air-flow input is much larger than the speed of burning, and excess air is many, incomplete combustion, and heat utilization rate is low; 2. burner rating is high, to needing the dry material of low-temperature heat inapplicable.3. infrared emitter is heated wire netting, causes infra-red radiation inhomogeneous.
Therefore, be necessary to design a kind of reverse gas infrared radiation device, reduce burning velocity, be applicable to the dry material of low-temperature heat, reach effects of energy saving and emission reduction.
In addition, because reverse gas infrared radiation device adopts the from top to bottom reverse combustion gas mode of air feed, airborne dust granules is inevitable enters Gas-fired radiator inside with combustion air, after long-time use, dust may be piled up and stop up Gas-fired radiator pipeline, thereby affect the input speed of pre-mixing gas combustion, once the input speed of pre-mixing gas combustion is less than burning velocity, will cause tempering phenomenon to cause blast.
Therefore, must in improved new technology, take into account the purification of incident air, the service life of extension device.
Summary of the invention
The utility model provides and the invention provides reverse gas infrared radiation device, addresses the above problem.
The concrete technical scheme that the utility model adopts is:
A kind of reverse gas infrared radiation device, comprise casing and radiation generator, described casing is installed on described radiation generator outside, described radiation generator includes loophole, induction tunnel and burning portion, described entrance port connects peripheral hardware gas feeder, injects combustion gas with small-power gas nozzle, imports air in combustion gas injection mode; Air and combustion gas form pre-mixing gas combustion in induction tunnel, in described burning portion, burn;
It is characterized in that: described casing comprises atmospheric pressure storehouse and high-pressure chamber, described high-pressure chamber connects air-blast device and blasts cooling air, and the storehouse internal gas pressure of described high-pressure chamber is greater than atmospheric pressure, and described high-pressure chamber connects described atmospheric pressure storehouse by aperture; The bottom opening in described atmospheric pressure storehouse and extraneous air are linked up, and make storehouse, described atmospheric pressure storehouse internal gas pressure equal atmospheric pressure, and the radiation that described burning portion produces is penetrated by bottom, atmospheric pressure storehouse; Described induction tunnel, described hot spots is in described atmospheric pressure storehouse.
As follows by the effect that adopts above-mentioned technological means to obtain:
Import air in entrance port in combustion gas injection mode, limit the input speed of pre-mixing gas combustion, reduced the burning velocity of burning portion, with the air-blast cooled mode control in outside the temperature of radiation generator metallic walls, prevent that metallic walls excess Temperature from causing lighting pre-mixing gas combustion and blasting; Realize the small-power reverse combustion of radiation generator.
High-pressure chamber storehouse internal gas pressure is greater than the storehouse internal gas pressure in atmospheric pressure storehouse, therefore air flows into atmospheric pressure storehouse by aperture in high-pressure chamber storehouse, because radiation generator in atmospheric pressure storehouse carries out combustion reaction, in atmospheric pressure storehouse, temperature is higher than high-pressure chamber temperature, therefore high-pressure chamber imports the actual formation of air to radiator induction tunnel, the cooling air of the metal shell of diffusion storehouse and burning portion, realizes the control of the temperature to radiation generator metallic walls, and is derived by atmospheric pressure storehouse bottom opening.If must be simultaneously when radiation generator is placed on to open space in multiple directions to induction tunnel and the metal shell air blast of burning portion.And the semiclosed cabin body design in atmospheric pressure storehouse, the cooling effect that makes high-pressure chamber import air is significantly optimized.
Further improve and be: described radiation generator includes loophole, induction tunnel and burning portion; Described entrance port comprises combustion gas inlet and air inflow aperture, and described combustion gas inlet is provided with small-power gas nozzle and connects outside gas feeder, combustion gas by described small-power gas nozzle within described combustion gas inlet is spurted into described entrance port; Described induction tunnel connects described entrance port, air and combustion gas that described entrance port imports form pre-mixing gas combustion in described induction tunnel, described induction tunnel connects described burning portion, described burning portion is provided with igniter, pre-mixing gas combustion imports described burning portion by described induction tunnel, lighted by described igniter, in the burning of described burning portion, to producing infrared radiation under described burning portion; Described induction tunnel, burning portion outer wall continues coolingly by blasting cooling air, also comprises heat build-up baffle plate, and described heat build-up baffle plate is located at described burning subordinate edge.
By adopting technique scheme: small-power gas nozzle sprays combustion gas and enters induction tunnel from combustion gas inlet, combustion gas is clashed into induction tunnel inside pipe wall and is formed gamma angle, form negative pressuren zone by air slide effect, thus, edge, entrance port air is formed to negative pressure drainage effect, form injection air stream, import induction tunnel from entrance port air inflow aperture, belong to the air intake mode of combustion gas injection but not air blast drives the mechanical air intake mode of combustion gas air intake, the speed that air-flow blasts is far smaller than the air-flow input speed that the air blast of prior art machinery produces, reduce burning velocity, solve the problem of incomplete combustion.Simultaneously, high-pressure chamber to the actual formation of the incident air stream in atmospheric pressure storehouse to induction tunnel, the lasting cooling air of burning portion and Department of Radiation shell, suppress burning portion heat upwards to conduct the gas-fired infrared radiator internal temperature causing too high, stopped that gas-fired infrared radiator metallic walls excess Temperature is lighted pre-mixing gas combustion and the hidden danger of blasting.Burning subordinate, along being provided with heat build-up baffle plate, prevents that directly burning causes metal-back excess Temperature at radiation generator metal shell edge in imperfect combustion air mixture.Thereby guarantee to realize the small-power reverse combustion of radiation generator.
Further improve and be: described casing is the rounded cylinder in cross section, and described atmospheric pressure position in storehouse is in casing centre position, and described high-pressure chamber is distributed in both sides, described atmospheric pressure storehouse.
In this way: the shape of casing can farthest be born pressure, optimize the structure of casing, made more firm and durable of casing.
Further improve and be: described casing is installed on the radiation generator outside of multiple parallel placements.
In this way: make the burning radiation linkage work of multiple radiation generators, form an overall large radiation face, extensively adapt to different materials.
Further improve and be: described casing also comprises middle pressure storehouse, the entrance port of described radiation generator is in described middle pressure storehouse, described middle pressure storehouse is connected by air port and described high-pressure chamber, high-pressure chamber connects air-blast device and blasts cooling air, described air-blast device port is provided with purifier and purifies drum as enter the dust in cooling air, the storehouse internal gas pressure in described middle pressure storehouse is greater than atmospheric pressure, and described middle pressure storehouse and described atmospheric pressure storehouse do not exist gas exchange.
By adopting technique scheme: in the Zhong Ya storehouse, entrance port of radiation generator, radiation generator remaining part is in atmospheric pressure storehouse, and middle pressure storehouse and described atmospheric pressure storehouse do not exist gas exchange.Thus, in middle pressure storehouse, the air blast cooling air of cooling combustion portion metal outer wall is in atmospheric pressure storehouse with the combustion gas mixing air that is pre-mixing gas combustion.The thorough shunting of cooling air and combustion air, has solved cooling air in prior art and must maintain high-power output for ensureing that radiation generator is cooling, is to realize the small-power reverse combustion contradiction that pre-mixing gas combustion input speed can not be too fast.
Middle pressure storehouse connects high-pressure chamber by air port, and high-pressure chamber connects air-blast device and blasts cooling air, and described air-blast device port is provided with purifier and purifies drum as enter the dust in cooling air.Thus, press in having guaranteed to be imported by high-pressure chamber in the air stream in storehouse and substantially there is no dust; Connect in the Zhong Ya storehouse, entrance port of peripheral hardware gas feeder, therefore in, press the junction of storehouse and peripheral hardware gas feeder to certainly exist tiny gap, because storehouse, middle pressure storehouse internal gas pressure is greater than atmospheric pressure, ensure that the dust in extraneous air can therefrom not pressed in the fine gap of storehouse and peripheral hardware gas feeder junction, to enter middle pressure storehouse and enter thus radiation generator inside from entrance port.Thereby having ensured does not on the whole have a dust in the pre-mixing gas combustion of radiation generator input substantially.Ensure can not cause tempering in radiation generator inside because of the dust accumulation in combustion-supporting air flow after the long-term use of radiation generator.
Further improve and be: described middle pressure storehouse comprises shield with the air port that described high-pressure chamber is connected, can be by adjusting the flexible size that changes described air port of shield.
By adopting in this way: can be by pressing the storehouse internal gas pressure value of pressing storehouse between storehouse and high-pressure chamber in the adjusting of traffic channel size trace in adjusting.The technique effect doing is like this to make reverse gas-fired radiation device can adapt to different atmospheric pressure environment to carry out work, in low altitude area, atmospheric pressure is higher, presses the air port passage between storehouse and high-pressure chamber in expansion, presses the storehouse internal gas pressure in storehouse to make storehouse, middle pressure storehouse internal gas pressure higher than atmospheric pressure in lifting.
And in high altitude localities, atmospheric pressure is lower, dwindle the air port passage between pressure storehouse and high-pressure chamber, in suitably reducing, press the storehouse internal gas pressure in storehouse, in maintenance, press the draught head in storehouse and atmospheric pressure storehouse, avoid that pressure relative atmospheric pressure in middle pressure storehouse is excessive and to cause pre-mixing gas combustion input speed to compare burning velocity excessive, cause the effect of incomplete combustion.
Further improve and be: described radiation generator burning portion outer wall is provided with cooling bath, described cooling bath upper end is provided with air intake vent, described cooling bath lower end is provided with air-vent, described air intake vent blasts cooling blast by blower fan, cooling blast is discharged from cooling bath by described air-vent, described air-vent, towards ground, has an oblique angle in the vertical direction.
In this way: the air stream that cooling bath air-vent flows out is ejected on radiation area material with oblique angle, form negative pressure drainage district at radiation area edge, the waste gas after burning by the guiding of negative pressure drainage effect and the steam on material surface are to the sucking-off of negative pressuren zone direction; Meanwhile because adopt the mode of negative pressure drainage to dispel burnt gas and the steam of radiation area, evaded tradition to the blowing drainage way of radiation area the destruction to radiation area high temperature dry-bulb temperature field, radiation efficiency is maximized.
Further improve and be: described radiation generator incident pipe comprises fin, the rounded tab projection in described fin outer, described fin is evenly distributed on incident pipe outer wall.
By adopting in this way: increased the contact area of the cooling air that induction tunnel and air blast be blown into, strengthened the cooling effect on induction tunnel surface, kept the temperature stabilization of induction tunnel, safeguarded Gas-fired Radiator in Municipal work safety.
Further improve and be: described radiation generator injection portion comprises mixing portion and diffusion part from top to bottom, described mixing portion is vertical hollow cylinder, described diffusion part is vertical conical hollow cylinder, in the vertical direction with mix the oblique angle that leans outward that has 8 ° between portion.
By adopting in this way: the sectional area of diffusion part to be more progressively to expand, combustion-supporting air flow and combustion gas realize and mix compression and form premixed gas in described mixing portion, and spread for the first time at diffusion part.
Further improve and be: described radiation generator also comprises diffusion storehouse, described diffusion bin location is between described induction tunnel and described burning portion, and described diffusion storehouse outer wall is blown into cooling air by blower fan and continues cooling.Described diffusion storehouse comprises flow distribution plate, and described flow distribution plate is provided with tap hole, and described tap hole longitudinally runs through described flow distribution plate, and described flow distribution plate is the hemispherical that intermediate projections edge is flat.
By adopting in this way: induction tunnel imports to such an extent that pre-mixing gas combustion spreads for the second time in diffusion storehouse, in flow distribution plate, spread for the third time, the well-mixed combustion gas of induction tunnel end and air are evenly distributed in burning portion, overcome because of combustion gas and combustion-supporting air flow because of proportion different, entering diffusion storehouse from induction tunnel suddenly spreads two kinds of produced gases and again shunts, the technical problem of density unevenness, make to burn on each position of burning portion average, the amount of radiation that ensures each position of Department of Radiation keeps basically identical, makes burning radiation more average.
Further improve and be: the burning portion of described radiation generator comprises radiation combustion ceramic plate, and described radiation combustion ceramic plate is provided with the burner port of longitudinal perforation radiation combustion ceramic plate.
By adopting in this way: radiation happening part is controlled on the ceramic wafer of gas-fired infrared radiator, than in prior art using metallic plate as radiation source, radiation profiles is more stablized controlled, distributes more even.When pottery gas-fired infrared combustion system burner combustion, without visible flame, there are energy-saving and environmental protection, safe, stable.
Further improve and be: the described burning portion bottom of described radiation generator also comprises combustion-supporting net, described combustion-supporting net is positioned under described radiation combustion ceramic plate, between described combustion-supporting net position and described radiation combustion ceramic plate and described heat build-up baffle plate, form combustion bin, described combustion-supporting online distribution through hole.
By adopting in this way: the pre-mixing gas combustion completely that makes also not burn is lighted again in the combustion-supporting net metal surface of high temperature, form hot air rising, rising thermal current and input air pressure from top to bottom reach dynamic equilibrium, and residue pre-mixing gas combustion is stranded in fully burning in combustion bin.Reach completing combustion thereby realize pre-mixing gas combustion, make the input speed of premixed gas of incident and total combustion speed reach the technique effect of balance.
Further improve and be: the described cooling bath of described radiation generator is provided with metal bump and extends to described radiation combustion ceramic plate bottom sides edge, described radiation combustion ceramic plate is clamped by burn portion's top side metallic walls and the acting in conjunction of described cooling bath metal bump, described cooling bath is provided with metal shoulder pole, described metal shoulder pole is connected in diffusion storehouse metal outer wall, and the air-flow in described cooling bath directly contacts described radiation combustion ceramic plate outer wall.
By adopting technique scheme: the elastic construction by shoulder pole discharges the metalwork bulbs of pressure, prevent that radiation combustion ceramic plate is caught broken in combustion process because expanding with heat and contract with cold because of metal clamp portion.Improve the service life of realizing the disclosed radiation generator of the utility model.
Brief description of the drawings
Fig. 1 is cut-open view of final assembly of the present utility model;
Fig. 2 is air flow schematic diagram in casing of the present utility model;
Fig. 3 is that both sides of the present utility model high-pressure chamber is linked up schematic top plan view;
Fig. 4 is the schematic diagram of casing three-view diagram of the present utility model;
Fig. 5 is the front view of radiation generator of the present utility model;
Fig. 6 is the cutaway view of radiation generator of the present utility model;
Fig. 7 is the diffusion storehouse of radiation generator of the present utility model and the partial sectional view of burning portion;
Fig. 8 is the cross-sectional schematic of the induction tunnel of radiation generator of the present utility model;
Fig. 9 is the schematic top plan view of the entrance port of radiation generator of the present utility model
Figure 10 is the schematic top plan view of the radiation combustion ceramic plate of radiation generator of the present utility model;
The corresponding relation of Reference numeral and each parts is as follows:
1. entrance port; 2. induction tunnel; 3. diffusion storehouse; 4. burning portion; 11. combustion gas inlets; 12. air inflow apertures; 21. mixing portions; 22. diffusion parts; 23. fin; 31. flow distribution plates; 32. tap holes; 41. radiation combustion ceramic plates; 42. igniters; 43. combustion-supporting nets; 44. combustion bins; 45. heat build-up baffle plates; 5. cooling bath; 51. air intake vents; 52. air-vents; 6. metal shoulder pole; 7. casing; 71. high-pressure chambers; Ballasting in 72.; 73. atmospheric pressure storehouses; 74. air-blast devices; 75. air ports; 76. through holes; 77. shields.
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Detailed description of the invention
Below in conjunction with embodiment, the utility model is further described.
Embodiment 1 as shown in Fig. 1-10:
A kind of reverse gas infrared radiation device, comprises casing 7 and radiation generator, and described casing 7 is installed on described radiation generator outside, and described radiation generator includes loophole 1 from top to bottom successively, induction tunnel 2, diffusion storehouse 3, burning portion 4; Entrance port 1 comprises combustion gas inlet 11 and air inflow aperture 12, and entrance port 1 connects peripheral hardware gas feeder, injects combustion gas with small-power gas nozzle; Induction tunnel 2 outer walls comprise fin 23, and fin 23 is evenly distributed on the outer wall of described induction tunnel 2.The fin 23 rounded tab projection in outer; Described induction tunnel 2 inner sides are respectively mixing portion 21 and diffusion part 22 from top to bottom, and mixing portion 21 is for vertically to hollow cylinder, and diffusion part 22 is vertical conical hollow cylinder, diffusion part 22 with mix the oblique angle that leans outward that has 8 ° between portion 21.The diffusion part 22 of induction tunnel 2 connects diffusion storehouse 3, diffusion is provided with flow distribution plate 31 in storehouse 3, flow distribution plate 31 is provided with tap hole 32, tap hole 32 longitudinally runs through flow distribution plate 31, under flow distribution plate 31, establish radiation combustion ceramic plate 41, radiation combustion ceramic plate 41 is provided with the burner port of longitudinal perforation radiation combustion ceramic plate 41, burner port is uniformly distributed on radiation combustion ceramic plate 41, radiation combustion ceramic plate 41 thickness are 18mm, burner port aperture is 1.37mm, 210 per square inch of burner port distribution densities; Burning portion 4 bottoms comprise combustion-supporting net 43, and through hole distributes on described combustion-supporting net 43.Combustion-supporting net 43 is positioned at igniter 42 5mm below radiation combustion ceramic plate 41.Under burning portion 4 bottoms, edge is provided with heat build-up baffle plate 45; Burning portion 4 outer walls are provided with cooling bath 5, and these cooling bath 5 upper ends are provided with air intake vent 51, and cooling bath 5 lower ends are provided with air-vent 52, and air-vent 52, towards ground, has one the 65 oblique angle of degree in the vertical direction.Cooling bath 5 bottoms are provided with metal bump and extend to described radiation combustion ceramic plate bottom sides edge, described radiation combustion ceramic plate is clamped jointly by burn portion's top side metallic walls and described cooling bath metal bump, described radiant burner comprises metal shoulder pole 6, the two ends of connection metal shoulder pole 6 respectively, described cooling bath 5 both sides, described metal shoulder pole 6 is connected in diffusion storehouse 3 top metal outer walls with bolt.
Casing 7 comprises high-pressure chamber 71, middle pressure storehouse 72 and atmospheric pressure storehouse 73, and the entrance port 1 of radiation generator is in described middle pressure storehouse 72, and described radiation generator remaining part is in described atmospheric pressure storehouse 73; Described high-pressure chamber 71 connects peripheral hardware air-blast device 74 and blasts cooling air, and these air-blast device 74 air intake vents are provided with clarifier, and described high-pressure chamber 71 connects described atmospheric pressure storehouse 73 by bunghole 76, and described middle pressure storehouse 72 is connected by air port with described high-pressure chamber 71.The air port that described middle pressure storehouse 72 is connected with described high-pressure chamber 71 comprises shield 77, and described shield 77 can be by regulating the intake size in the described air port 75 of flexible change of bolt on shield.Described atmospheric pressure storehouse 73 bottom openings and extraneous air ditch circular order storehouse internal gas pressure equal atmospheric pressure, and the storehouse internal gas pressure of described high-pressure chamber 71 is greater than the storehouse internal gas pressure in described middle pressure storehouse 72, and the storehouse internal gas pressure in described middle pressure storehouse 72 is greater than atmospheric pressure; Combustion gas is penetrated by 73 bottom opening places, described atmospheric pressure storehouse in the radiation that produces of burning institute of burning portion 4, and described middle pressure storehouse 72 and described atmospheric pressure storehouse 73 do not exist gas to exchange.
Described casing entirety is the rounded cylinder of cross section, described atmospheric pressure storehouse 73 is positioned at casing 7 centre positions, lower ending opening is just to the anti-burning portion 4 of raw device of radiation, described middle pressure storehouse 72 is distributed in described atmospheric pressure storehouse 73 upsides, described high-pressure chamber 71 is distributed in 73 both sides, described atmospheric pressure storehouse, the high-pressure chamber 71 of both sides is communicated with each other with large-diameter circular passage, and the high-pressure chamber 71 that air-blast device 74 is only connected in a side forms both sides high-pressure chamber 71 equipressures.
Cylindrical casing 7 is installed on the radiation generator outside of multiple parallel placements, makes multiple radiation generator linkage works, and the radiating surface of multiple radiation generators is connected into an overall large radiation face.
In practice, three sections of decompressions of canned natural gas via are injected reverse infrared radiation generator with gas nozzle from combustion gas inlet 11, and the air pressure control of gas nozzle end is 3 kPas.Under Venturi effect, form negative pressuren zone at nozzle towards both sides, drainage entrance port 1 surrounding air pours into the induction tunnel 2 of reverse infrared radiation generator from the air inflow aperture 12 of entrance port 1.Air stream and natural gas flow form pre-mixing gas combustion in 21 compressions of induction tunnel 2 mixing portions, and pre-mixing gas combustion carries out first stage diffusion at induction tunnel 2 diffusion parts 22; Pre-mixing gas combustion enters diffusion storehouse 3 by induction tunnel 2 diffusion parts 22, carry out second stage diffusion in diffusion 3 epimere spaces, storehouse, be deposited on flow distribution plate 31 and form the 3rd section of diffusion by tap hole 32, evenly enter in the burner port of the radiation ceramic burner plate 41 under flow distribution plate 31, igniter 42 is lighted radiation ceramic burner plate 41, records pre-mixing gas combustion in the 2-3cm place flameless combustion of burner port lower end.Do not have the air mixture of completing combustion to be lighted again in combustion-supporting net 43 metal surfaces of high temperature, reach dynamic equilibrium with rising thermal current and input air-flow from top to bottom, be stranded in completing combustion in combustion bin 44, make input speed and the total combustion speed of the premixed gas of incident reach balance, and to radiation area generation radiation.
Air stream blasts the high-pressure chamber 71 of casing after peripheral hardware air-blast device purifies, make high-pressure chamber 71 storehouse internal pressures be greater than atmospheric pressure, thus, both sides high-pressure chamber 71 imports air by the through hole 76 of atmospheric pressure storehouse 73 sidewalls in atmospheric pressure storehouse 73, because the interior radiation generator in atmospheric pressure storehouse 73 carries out combustion reaction, temperature, higher than high-pressure chamber 71 temperature, forms radiator induction tunnel 2 therefore high-pressure chamber 71 imports air, the cooling air of the outer metal housing of diffusion storehouse 3 and burning portion 4, and derived by atmospheric pressure 73 storehouse bottom openings; High-pressure chamber 71 storehouse internal pressures are greater than the storehouse internal pressure in middle pressure storehouse 72, therefore pressing storehouse 72 to import air stream by air port 75 centerings, high-pressure chamber 71 serves as the combustion-supporting air flow that entrance port 1 imports, thus, although atmospheric pressure storehouse 73 and middle pressure storehouse 72 are linked up by high-pressure chamber 71 on space, but because the storehouse internal gas pressure of high-pressure chamber 71 is greater than middle pressure storehouse 72 and atmospheric pressure storehouse 73, realize in middle pressure storehouse 72 and atmospheric pressure storehouse 73 and do not had gas exchange, realized the shunting completely of the cooling-air stream in combustion-supporting air flow and the atmospheric pressure storehouse 73 in middle pressure storehouse 72.Middle pressure storehouse 72 storehouse internal gas pressures are greater than atmospheric pressure, enter middle pressure storehouse 72 and enter radiation generator inside from entrance port 1 thus therefore the dust in extraneous air can therefrom not pressed in the fine gap of storehouse 72 and peripheral hardware gas feeder junction.Thereby having ensured does not on the whole have a dust in the pre-mixing gas combustion of radiation generator input substantially.
Up because of the radiation generator temperature that burning produces, the cooling air being imported by high-pressure chamber 71 is to induction tunnel 2, and burning portion 4 outer walls carry out cooling.Cooling bath 5 air intake vents 51 of cooling air spontaneous combustion portion 4 shells enter, and discharge from cooling bath 5 air-vents 52, form negative pressure space at radiation area edge, produce negative pressure drainage effect.The steam ordering about on burnt gas and the material of radiation area moves to negative pressuren zone, reaches the exhaust cycle effect of radiation area.Because realize the pre-mixing gas combustion speed of input than slow many of prior art, fuel gas buring is very complete, after testing, after burning, in air, almost there is no carbon monoxide and nitrogen oxide, has reached the expection technique effect of energy-saving and emission-reduction.
The above, only an embodiment of the present utility model, the utility model is not limited to the restriction of above-described embodiment, and similar amendment, variation and replacement that all foundations technical spirit of the present utility model is done above-described embodiment, still belong in the scope of the technical solution of the utility model.Protection domain of the present utility model is only defined by claims.
Claims (13)
1. a reverse gas infrared radiation device, comprise casing and radiation generator, described casing is installed on described radiation generator outside, described radiation generator includes loophole, induction tunnel and burning portion, described entrance port connects peripheral hardware gas feeder, injects combustion gas with small-power gas nozzle, imports air in combustion gas injection mode; Air and combustion gas form pre-mixing gas combustion in induction tunnel, in described burning portion, burn;
It is characterized in that: described casing comprises atmospheric pressure storehouse and high-pressure chamber, described high-pressure chamber connects air-blast device and blasts cooling air, makes the storehouse internal gas pressure of described high-pressure chamber be greater than atmospheric pressure, and described high-pressure chamber connects described atmospheric pressure storehouse by aperture; The bottom opening in described atmospheric pressure storehouse and extraneous air are linked up, and make storehouse, described atmospheric pressure storehouse internal gas pressure equal atmospheric pressure, and the radiation that described burning portion produces is penetrated by bottom, atmospheric pressure storehouse; Described induction tunnel, described burning portion is in described atmospheric pressure storehouse.
2. a reverse gas infrared radiation device as claimed in claim 1, is characterized in that: described radiation generator includes loophole induction tunnel and burning portion; Described entrance port comprises combustion gas inlet and air inflow aperture, and described combustion gas inlet is provided with small-power gas nozzle and connects outside gas feeder, combustion gas by described small-power gas nozzle within described combustion gas inlet is spurted into described entrance port; Described induction tunnel connects described entrance port, air and combustion gas that described entrance port imports form pre-mixing gas combustion in described induction tunnel, described induction tunnel connects described burning portion, described burning portion is provided with igniter, pre-mixing gas combustion imports described burning portion by described induction tunnel, lighted by described igniter, in the burning of described burning portion, to producing infrared radiation under described burning portion; Described induction tunnel, burning portion outer wall continues coolingly by blasting cooling air, also comprises heat build-up baffle plate, and described heat build-up baffle plate is located at described burning subordinate edge.
3. a reverse gas infrared radiation device as claimed in claim 2, is characterized in that: described casing is the rounded cylinder in cross section, described atmospheric pressure position in storehouse is in casing centre position, and described high-pressure chamber is distributed in both sides, described atmospheric pressure storehouse.
4. a reverse gas infrared radiation device as claimed in claim 3, is characterized in that: described casing is installed on the radiation generator outside of multiple parallel placements.
5. a reverse gas infrared radiation device as described in claim 2 to 4 any one, it is characterized in that: described casing also comprises middle pressure storehouse, the entrance port of described radiation generator is in described middle pressure storehouse, described middle pressure storehouse is connected by air port and described high-pressure chamber, high-pressure chamber connects air-blast device and blasts cooling air, described air-blast device port is provided with purifier and purifies drum as enter the dust in cooling air, the storehouse internal gas pressure in described middle pressure storehouse is greater than atmospheric pressure, and described middle pressure storehouse and described atmospheric pressure storehouse do not exist gas exchange.
6. a reverse gas infrared radiation device as claimed in claim 5, is characterized in that: described middle pressure storehouse comprises shield with the air port that described high-pressure chamber is connected, can be by adjusting the flexible size that changes described air port of shield.
7. a reverse gas infrared radiation device as claimed in claim 6, it is characterized in that: described radiation generator burning portion outer wall is provided with cooling bath, described cooling bath upper end is provided with air intake vent, described cooling bath lower end is provided with air-vent, described air intake vent blasts cooling blast by blower fan, cooling blast is discharged from cooling bath by described air-vent, and described air-vent, towards ground, has an oblique angle in the vertical direction.
8. a reverse gas infrared radiation device as claimed in claim 6, is characterized in that: described radiation generator induction tunnel comprises fin, the rounded tab projection in described fin outer, and described fin is evenly distributed on incident pipe outer wall.
9. a reverse gas infrared radiation device as claimed in claim 6, it is characterized in that: described radiation generator injection portion comprises mixing portion and diffusion part from top to bottom, described mixing portion is vertical hollow cylinder, described diffusion part is vertical conical hollow cylinder, in the vertical direction with mix the oblique angle that leans outward that has 8 ° between portion.
10. a reverse gas infrared radiation device as claimed in claim 6, it is characterized in that: described radiation generator also comprises diffusion storehouse, described diffusion bin location is between described induction tunnel and described burning portion, described diffusion storehouse outer wall is blown into cooling air by blower fan and continues cooling, described diffusion storehouse comprises flow distribution plate, described flow distribution plate is provided with tap hole, and described tap hole longitudinally runs through described flow distribution plate.
11. 1 kinds of reverse gas infrared radiation devices as claimed in claim 6, is characterized in that: the burning portion of described radiation generator comprises radiation combustion ceramic plate, described radiation combustion ceramic plate is provided with the burner port of longitudinal perforation radiation combustion ceramic plate.
12. 1 kinds of reverse gas infrared radiation devices as claimed in claim 11, it is characterized in that: the described burning portion bottom of described radiation generator also comprises combustion-supporting net, described combustion-supporting net is positioned under described radiation combustion ceramic plate, between described combustion-supporting net position and described radiation combustion ceramic plate and described heat build-up baffle plate, form combustion bin, described combustion-supporting online distribution through hole.
13. 1 kinds of reverse gas infrared radiation devices as claimed in claim 7, it is characterized in that: the described cooling bath of described radiation generator is provided with metal bump and extends to described radiation combustion ceramic plate bottom sides edge, described radiation combustion ceramic plate is clamped by burn portion's top side metallic walls and the acting in conjunction of described cooling bath metal bump, described cooling bath is provided with metal shoulder pole, described metal shoulder pole is connected in diffusion storehouse metal outer wall, and the air-flow in described cooling bath directly contacts described radiation combustion ceramic plate outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361632.6U CN203980277U (en) | 2014-03-20 | 2014-07-02 | Reverse gas infrared radiation device |
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| CN201420127558.1 | 2014-03-20 | ||
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| CN203980277U true CN203980277U (en) | 2014-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930508A (en) * | 2014-03-20 | 2015-09-23 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation device and reverse gas radiation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930508A (en) * | 2014-03-20 | 2015-09-23 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation device and reverse gas radiation method |
| CN104930508B (en) * | 2014-03-20 | 2018-02-02 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation device and reverse gas-fired radiation method |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20180202 |