CN103759261B - A kind of infrared heating device - Google Patents
A kind of infrared heating device Download PDFInfo
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- CN103759261B CN103759261B CN201410038509.5A CN201410038509A CN103759261B CN 103759261 B CN103759261 B CN 103759261B CN 201410038509 A CN201410038509 A CN 201410038509A CN 103759261 B CN103759261 B CN 103759261B
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Abstract
The invention provides a kind of infrared heating device, comprising: fuel gas pre-mixing apparatus, be provided with the outlet of fuel gas entrance, air intake and premixed gas; Premixed gas snorkel, its one end as entrance is connected to premixed gas outlet; At least one discharge, it is connected with the port of export of premixed gas snorkel; Reflecting plate, it is arranged on the below of discharge, and with discharge spaced a predetermined distance; Multiple gear flame cover, it is arranged on the lower surface of reflecting plate, is spaced preset distance between multiple gear flame cover; And multiple mozzle, its one end is connected to the sidewall of discharge, and the other end extend in gear flame cover through reflecting plate; Wherein, that end that mozzle extend in gear flame cover is formed as burner, and the bottom surface of burner and gear flame cover spaced a predetermined distance; Wherein, the both side surface of keeping off flame cover is offered and thankss for your hospitality flame groove.The present invention has that efficiency of combustion is high, infrared ray transformation efficiency is high, heat loss is little, safety and life-span long advantage.
Description
Technical field
The present invention relates to a kind of infrared heating device, particularly relate to and a kind of by gas fuel burning gear flame cover be heated to 800-1100 DEG C thus be ultrared infrared heating device by flaming thermal energy.
Background technology
Existing Gas Infrared heater, its general principle is that fuel gas and air carry out premix, under the effect of blower fan, air mixture enters combustion system and burns, burner mostly is divides into integral combustion room the mode that porous plate or employing metal tube are slotted, and fuel gas blows out and burns from these ventholes.Its common shortcoming is that burned flame is close to burner, flame is while heating object, the flammable premixed gas body of burner and inside thereof is also subsequently heated or is heated by the thermal current risen, when adding Wind Volume to add high flame, mist temperature in combustion chamber raises gradually and produces sharply volumetric expansion, when gas expansion stress is greater than air-supply blast, just cause because air-supply does not freely cause fire extinguishing, aflame fire extinguishing often occurs along with the blast of the air mixture of depositing in combustion chamber when reaching ignition point, not only dangerous, and impact is worked continuously.
People think that adding Wind Volume can solve the problem always, but in fact this is a contradiction: add Wind Volume and mean that firepower is larger, and larger firepower sharply raises quickly by making the temperature of air mixture in air supply device and combustion chamber, the resistance of gas increases with the rising of temperature, exceed air feed blast the most at last thus produce blast and fire extinguishing, this process is proved to be the time only having a few minutes in practice.
Summary of the invention
The object of this invention is to provide a kind of burning usefulness that can improve air mixture class infrared heating device safely, and then improve the infrared heating device of infrared heating efficiency.
For reaching above-mentioned target, the invention provides a kind of infrared heating device, it comprises: fuel gas pre-mixing apparatus, is provided with fuel gas entrance and air intake, and it is also provided with premixed gas outlet; Premixed gas snorkel, its one end as entrance is connected to the outlet of described premixed gas; At least one discharge, it is connected with the port of export of premixed gas snorkel; Reflecting plate, it is arranged on the below of described discharge, and with described discharge spaced a predetermined distance; Multiple gear flame cover, it is arranged on the lower surface of described reflecting plate, and is spaced preset distance between described multiple gear flame cover; And multiple mozzle, its one end is connected to the sidewall of discharge, and the other end extend in gear flame cover through described reflecting plate; Wherein, that end that described mozzle extend in gear flame cover is formed as burner, and the bottom surface of burner and gear flame cover spaced a predetermined distance; Wherein, the both side surface of keeping off flame cover offers and multiplely disturbs flame groove.
In above-mentioned infrared heating device, the cross-sectional area that described mozzle is connected to one end of sidewall is greater than the cross-sectional area of described burner.
In above-mentioned infrared heating device, multiple mozzle is disposed on both sides or the bottom of described discharge along the length direction of discharge.
In above-mentioned infrared heating device, along the length direction of discharge, described burner and described flame groove of disturbing are spaced layout.
In above-mentioned infrared heating device, the cross section semicircular in shape of described gear flame cover or arch or arc.Or in other embodiments, the cross section of described gear flame cover is rectangular or square.
In above-mentioned infrared heating device, the cross-sectional area of described mozzle is less than the cross-sectional area of described discharge.
In above-mentioned infrared heating device, the shape of described burner is flat-shaped duckbill or the taper shape of reduced diameter.
In above-mentioned infrared heating device, the material of described reflecting plate or gear flame cover is stainless steel, carbon steel, ferrum-chromium-aluminum or refractory ceramics.
In above-mentioned infrared heating device, in described fuel gas pre-mixing apparatus, be provided with blower fan; Described fuel gas is liquefied petroleum gas, propane, butane, natural gas, coal gas, biogas or gasification gasoline, the fuel gas lighted of described burner place gear flame cover can be heated to 800-1100 DEG C with by flaming thermal energy for infrared ray.
Owing to taking above technical scheme, the present invention has following beneficial effect:
The present invention is due to active flammable premixed gas body, air required for gas fuel burning all comes from the primary air of premix, without the need to auxiliary air, heat up because air supply system of the present invention is not directly heated by flame again, thus burner can be made into case type, at utmost reduce heat loss, and improve processing safety.
Infrared heating device of the present invention can all be manufactured by stainless steel or other heat-resisting alloys, and structure is simple, easy to process, with low cost, durable in use.
Compared with the prior art, the present invention has the advantage that security performance is good, burning usefulness is high, infrared ray transformation efficiency is high, heat loss is little, easy igniting and life-span are long.
In addition, infrared heating device of the present invention can be arranged in groups on a heating plate, the size of heating plate only depends on quantity and the layout of air mixture feed system and burner, and single heating surface (area) (HS can change with the change of heating plate area.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first exemplary embodiment of the present invention.
Fig. 2 is the A-A schematic cross-section in Fig. 1.
Fig. 3 is the structural representation of the second exemplary embodiment of the present invention.
Fig. 4 is the A-A schematic cross-section in Fig. 3.
Detailed description of the invention
Below, with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Coordinate shown in Fig. 1 and Fig. 2, infrared heating device provided by the invention can comprise:
Fuel gas pre-mixing apparatus 2, is provided with fuel gas entrance and air intake, and it is also provided with premixed gas outlet 21; Wherein, Gas Pipe 1 can be connected to fuel gas entrance to provide fuel gas, and air intake directly can be opened on fuel gas pre-mixing apparatus 2 (not shown) directly to introduce air; Further, in fuel gas pre-mixing apparatus 2, blower fan (not shown) can be provided with, thus introduce air and mixed combustible gas body by blower fan;
Premixed gas snorkel 3, its one end as entrance is connected to premixed gas outlet 21;
At least one discharge 9, it is connected with the port of export of premixed gas snorkel 3; In the embodiment shown in fig. 1, the quantity of discharge 9 is two, but it will be appreciated by persons skilled in the art that the quantity of discharge 9 also can be one, or more than three, this can adjust according to actual needs;
Reflecting plate 4, it is arranged on the below of discharge 9, and with discharge 9 spaced a predetermined distance; This predetermined distance can adjust as required, and such as in certain embodiments, this distance can be 10mm, or in other embodiments, this distance also can be 50mm;
Multiple gear flame cover 8, it is arranged on the lower surface of reflecting plate 4, and is spaced preset distance between described multiple gear flame cover 8; As a rule, when arranging two discharge 9, it is preferred for arranging four gear flame covers, that is, every root discharge correspondence arranges two gear flame covers, but the present invention is also not limited only to this, it will be understood by those skilled in the art that, a corresponding gear flame cover of discharge is also feasible, or a discharge corresponding three or more gear flame covers;
Multiple mozzle 5, its one end is connected to the sidewall of discharge 9, and the other end extend in gear flame cover 8 through reflecting plate 4; Wherein, that end that described mozzle 5 extend in gear flame cover 8 is formed as burner 6, and the bottom surface of burner 6 and gear flame cover 8 spaced a predetermined distance; This predetermined distance is preferably with 10mm-50mm, and the object arranged like this allows the flame envelope part of flame be heated to gear flame cover 8;
Wherein, the both side surface of keeping off flame cover 8 offers and multiplely disturbs flame groove 7.
In the present invention, be not particularly limited the quantity of mozzle 5, it can arbitrarily be arranged as required, and, mozzle 5 only can be arranged on the side of discharge 9, such as, but preferably, multiple mozzle 5 is disposed on the both sides of discharge 9, shown in Fig. 1 or Fig. 3 along the length direction of discharge 9.
In a preferred embodiment of the invention, the cross-sectional area that mozzle 5 is connected to one end of sidewall is greater than the cross-sectional area of burner 6, and the shape of burner 6 can be flat-shaped duckbill (as depicted in figs. 1 and 2) or the taper shape (as shown in Figure 3 and Figure 4) of reduced diameter.Such setting be because: the effect of mozzle 5 is that the air mixture under certain blast pressure is drained into burner along tube wall, because burner is processed to long narrow flattening shape (duckbill) or taper, the air mixture be sent forms jet under blast, this jet pressure will be greater than the rising buoyancy of heated air always, thus effectively prevent the possibility of auxiliary air backflow and fire extinguishing.Due to the drainage of mozzle, burner away from discharge, the thermal-flame at burner place away from feeder, thus effectively prevent that feeder and internal mix combustion gas produce blast and fire extinguishing by heating may.
In the present invention, the premixed gas snorkel 3 be connected with discharge 9 can be positioned at any region on one of two ends of discharge 9 or pipe, and premixed gas snorkel 3 is connected with discharge 9, and air mixture enters discharge 9 by snorkel 3.Discharge 9 is provided with the mozzle 5 that several cross-sectional areas are less than discharge 9, and the outlet side of mozzle 5 (being namely processed to the conical burner 6 of flat-shaped duckbill or reduced diameter), be less than air inflow with the air mixture gas output of mode of jet ejection from burner always, therefore air mixture has the effect being aggregated and carrying out secondary mixing under blast pressure in discharge, when flow velocity of blowing is greater than air-out flow velocity, any position that premixed gas snorkel 3 is positioned at discharge all significantly can not affect the gas output of each burner, the flexibility of premixed gas snorkel 3 installation site will improve the flexibility of various device fabrication under the technology of the present invention greatly.
In the present invention, the diameter of mozzle 5 is less than the diameter (namely the cross-sectional area of mozzle is less than the cross-sectional area of discharge) of discharge 9, and mozzle 5 can be linear, also can be processed into flexure type (being exactly flexure type in illustrated embodiment), the suitable for reading of water conservancy diversion combustion tube is connected with discharge, and end opening is burner.In other embodiments of the invention, as required mozzle can be processed into linear pattern or flexure type, changeable, mozzle can any layout be arranged on discharge, preferably mozzle is set in a row, with the installation facilitating continuous length to keep off flame cover.
In the present invention, arrange metal gear flame cover apart from a distance, burner front, gear flame cover is provided with and somely disturbs flame hole or disturb flame groove, gear flame cover can be arc, also can be rectangle.Air mixture through gas collection drainage is jet-like blue-flame under Thorough combustion, gear flame cover is being provided with from flame root 2/3 length place, gear flame cover has and somely disturbs flame hole or groove, preferably open in the both sides of flame kernel line by disturbing flame groove, flame more will be conducive to like this separate, make heat concentrate on the baking keeping off flame cover and directly burn burning heating object surface without updraft, simultaneously, if gear flame cover disturb flame groove or hole just to venthole, will be blown out due to flaming thus be increased difficulty of lighting a fire.In fact the high temperature gear flame cover heated by blue-flame is exactly infrared generator, the infrared part heating object produced absorbs and part is reflected back, therefore, gear flame cover is provided with reflecting plate, reflecting plate is processed by stainless steel, carbon steel, ferrum-chromium-aluminum or refractory ceramics, reflecting heat is not only in the effect of reflecting plate, also plays the effect of closed burner.
Specifically, in the present invention, as shown in Figure 1, along the length direction of discharge 9, burner 6 with disturb flame groove 7 and be spaced layout.Like this, the venthole of burner 6 can not align on the length direction of discharge 9 with disturbing flame groove 7, thus can reach above-mentioned effect.
Further, of the present invention first implements, the cross section semicircular in shape of gear flame cover 8 or arch or arc, as depicted in figs. 1 and 2, and as can be seen from the figure disturbs flame groove 7 and is arranged in the both side surface of gear flame cover 8.In addition, in the second embodiment of the present invention, the cross section of gear flame cover 8 also can be rectangular or square, as shown in Figure 3 and Figure 4, and as can be seen from the figure disturbs flame groove 7 and be arranged in the both side surface of gear flame cover 8.Like this, thermal current rising resistance does not impact outlet pressure, and air-flow is smooth and without updraft baking heating object.。
In the present invention, the material of above-mentioned reflecting plate 4 or gear flame cover 8 can be stainless steel, carbon steel, ferrum-chromium-aluminum or refractory ceramics, wherein preferably stainless steel or ferrum-chromium-aluminum.Further, above-mentioned fuel gas can be liquefied petroleum gas, propane, butane, natural gas, coal gas, biogas or gasification gasoline, wherein preferably liquefied petroleum gas, propane, butane and natural gas.The fuel gas lighted of described burner place gear flame cover can be heated to 800-1100 DEG C with by flaming thermal energy for infrared ray.
Be understandable that to those skilled in the art, the present invention can also comprise necessary support, thus facilitates installation and the assembling of above-mentioned all parts, and this is the technological means that those skilled in the art commonly use, and so there is no illustrate.
The present invention in use, open gas valve by the air-fuel ratio of setting and start premix blower fan, air mixture is fed to premixed gas snorkel 3 under certain blast, after discharge 9 uniform divided flows, by several mozzles 5, air mixture is exported to burner 6 in the mode of jet, after lighting, fuel gas in gear flame cover 8, be blue combustion and vehement roasting gear flame cover to incandescent state, at this moment, the temperature of gear flame cover will reach 800 DEG C-1100 DEG C, namely the heat energy of direct combustion be converted to infrared ray, carries out penetration infrared heating to heating thing.
Claims (10)
1. an infrared heating device, is characterized in that, comprising:
Fuel gas pre-mixing apparatus, is provided with fuel gas entrance and air intake, and it is also provided with premixed gas outlet;
Premixed gas snorkel, its one end as entrance is connected to the outlet of described premixed gas;
At least one discharge, it is connected with the port of export of premixed gas snorkel;
Reflecting plate, it is arranged on the below of described discharge, and with described discharge spaced a predetermined distance;
Multiple gear flame cover, it is arranged on the lower surface of described reflecting plate, and is spaced preset distance between described multiple gear flame cover; And
Multiple mozzle, its one end is connected to the sidewall of discharge, and the other end extend in gear flame cover through described reflecting plate; Wherein, that end that described mozzle extend in gear flame cover is formed as burner, and the bottom surface of burner and gear flame cover spaced a predetermined distance;
Wherein, the both side surface of keeping off flame cover offers and multiplely disturbs flame groove.
2. infrared heating device according to claim 1, is characterized in that, the cross-sectional area that described mozzle is connected to one end of sidewall is greater than the cross-sectional area of described burner.
3. infrared heating device according to claim 1 and 2, is characterized in that, multiple mozzle is arranged along the length direction interval of discharge.
4. infrared heating device according to claim 3, is characterized in that, along the length direction of discharge, described burner and described flame groove of disturbing are spaced layout.
5. infrared heating device according to claim 3, is characterized in that, the cross section semicircular in shape of described gear flame cover or rectangle.
6. infrared heating device according to claim 3, is characterized in that, the cross section of described gear flame cover is curved.
7. the infrared heating device according to claim 1 or 2 or 4 or 5 or 6, it is characterized in that, the cross-sectional area of described mozzle is less than the cross-sectional area of described discharge.
8. the infrared heating device according to claim 1 or 2 or 4 or 5 or 6, is characterized in that, the shape of described burner is flat-shaped duckbill or the taper shape of reduced diameter.
9. the infrared heating device according to claim 1 or 2 or 4 or 5 or 6, it is characterized in that, the material of described reflecting plate or gear flame cover is stainless steel, carbon steel, ferrum-chromium-aluminum or refractory ceramics.
10. the infrared heating device according to claim 1 or 2 or 4 or 5 or 6, is characterized in that, be provided with blower fan in described fuel gas pre-mixing apparatus; Described fuel gas is liquefied petroleum gas, propane, butane, natural gas, coal gas, biogas or gasification gasoline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038509.5A CN103759261B (en) | 2014-01-27 | 2014-01-27 | A kind of infrared heating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410038509.5A CN103759261B (en) | 2014-01-27 | 2014-01-27 | A kind of infrared heating device |
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| CN103759261A CN103759261A (en) | 2014-04-30 |
| CN103759261B true CN103759261B (en) | 2016-01-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3801212A (en) * | 1971-03-30 | 1974-04-02 | Cutler Repaving Ass | Heater for asphalt concrete roadways and the like |
| CN2736415Y (en) * | 2004-09-17 | 2005-10-26 | 江苏奥新路业电器有限公司 | Far infrared heating system |
| WO2008068877A1 (en) * | 2006-12-08 | 2008-06-12 | Green Arm Co., Ltd. | Heating method and apparatus for heat softening asphalt surface layer |
| CN103233418A (en) * | 2013-04-08 | 2013-08-07 | 天津市双威科技发展有限公司 | Road patch infrared combined repairing machine |
| CN203703970U (en) * | 2014-01-27 | 2014-07-09 | 甘立成 | Infrared heating device |
-
2014
- 2014-01-27 CN CN201410038509.5A patent/CN103759261B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3801212A (en) * | 1971-03-30 | 1974-04-02 | Cutler Repaving Ass | Heater for asphalt concrete roadways and the like |
| CN2736415Y (en) * | 2004-09-17 | 2005-10-26 | 江苏奥新路业电器有限公司 | Far infrared heating system |
| WO2008068877A1 (en) * | 2006-12-08 | 2008-06-12 | Green Arm Co., Ltd. | Heating method and apparatus for heat softening asphalt surface layer |
| CN103233418A (en) * | 2013-04-08 | 2013-08-07 | 天津市双威科技发展有限公司 | Road patch infrared combined repairing machine |
| CN203703970U (en) * | 2014-01-27 | 2014-07-09 | 甘立成 | Infrared heating device |
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| CN103759261A (en) | 2014-04-30 |
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Effective date of registration: 20160802 Address after: 100004 Beijing City, Chaoyang District Guanghua Road No. 7 Hanwei building 6A1 Patentee after: Meibang (Beijing) New Material Technology Co.,Ltd. Address before: 100004 Beijing City, Chaoyang District Guanghua Road No. 7 Hanwei building 6A1 Patentee before: Gan Licheng |
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Address after: Room 1601, 13th Floor, Unit 1, Building 8, Xiaoyunli, Chaoyang District, Beijing, 100028, China 153 Patentee after: Beijing Meibang New Material Technology Group Co.,Ltd. Address before: 6A1, Hanwei Building, No. 7 Guanghua Road, Chaoyang District, Beijing, 100004 Patentee before: Meibang (Beijing) New Material Technology Co.,Ltd. |