CN103759261A - Infrared heating device - Google Patents
Infrared heating device Download PDFInfo
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- CN103759261A CN103759261A CN201410038509.5A CN201410038509A CN103759261A CN 103759261 A CN103759261 A CN 103759261A CN 201410038509 A CN201410038509 A CN 201410038509A CN 103759261 A CN103759261 A CN 103759261A
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Abstract
The invention provides an infrared heating device. The infrared heating device comprises a combustible gas pre-mixing device, a pre-mixed gas feeding pipe, at least one gas collecting pipe, a reflection plate, a plurality of flame baffle covers and a plurality of flow guide pipes, wherein the combustible gas pre-mixing device is provided with a combustible gas inlet, an air inlet and a pre-mixed gas outlet; one end, serving as an inlet, of the pre-mixed gas feeding pipe is connected to the pre-mixed gas outlet; the at least one gas collecting pipe is connected with the outlet end of the pre-mixed gas feeding pipe; the reflection plate is arranged below the at least one gas collecting pipe and away from the gas collecting pipe for a preset distance; the multiple flame baffle cover is arranged on the lower surface of the reflection plate, and the multiple flame baffle covers are arranged at intervals of preset distance; one ends of the multiple flow guide pipes are connected to the side wall of the gas collecting pipe, and the other ends of the flow guide pipes penetrate through the reflection plate and stretch into the flame baffle covers. The ends, stretching into the flame baffle covers, of the flow guide pipes form burners, and the burners and the bottom faces of the flame baffle covers are spaced for a preset distance. Flame disturbing grooves are formed in the surfaces on the two sides of each flame baffle cover. The infrared heating device has the advantages of being high in combustion efficiency and infrared conversion efficiency, little in heat loss, safe and long in service life.
Description
Technical field
The present invention relates to a kind of infrared heating device, thereby particularly relate to, a kind of by gas fuel burning, gear flame cover be heated to 800-1100 ℃ flaming heat energy is converted into ultrared infrared heating device.
Background technology
Existing Gas Infrared heater, its basic 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 with integral combustion chamber and divides into porous plate or adopt the mode of slotting on metal tube, and fuel gas blows out and burns from these ventholes.Its common shortcoming is that burned flame is close to burner, flame is in heating object, burner and inner flammable premixed gas body thereof are also heated by the thermal current heating or risen simultaneously, when adding Wind Volume when adding 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, the blast of the air mixture that aflame fire extinguishing is often accompanied by combustion chamber alluvial when reaching ignition point and occurring, not only dangerous, and impact is worked continuously.
People think that adding Wind Volume can address the above problem always, but in fact this is a contradiction: add Wind Volume and mean that firepower is larger, and larger firepower sharply raises the temperature that makes air mixture in air supply device and combustion chamber quickly, the resistance of gas increases with the rising of temperature, thereby exceed the most at last air feed blast, produce blast and fire extinguishing, this process is proved to be the time of 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 safely air mixture class infrared heating device, 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, be provided with fuel gas entrance and air intake, and it is also provided with premixed gas outlet on it; Premixed gas snorkel, its one end as entrance is connected to described 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 described discharge, and with described discharge interval preset distance; Multiple gear flame covers, it is arranged on the lower surface of described reflecting plate, and each interval preset distance between described multiple gear flame cover; And multiple mozzles, its one end is connected to the sidewall of discharge, and the other end is through described reflecting plate and extend in gear flame cover; Wherein, that end that described mozzle extend in gear flame cover is formed as burner, and interval, the bottom surface preset distance of burner and gear flame cover; Wherein, in the both side surface of gear flame cover, offer multiple flame grooves of disturbing.
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 mozzles are 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 with described in disturb flame groove be each interval arrange.
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, described burner be shaped as the taper shape that flat-shaped duckbill or diameter reduce.
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, and the fuel gas that light at described burner place can be heated to 800-1100 ℃ so that flaming heat energy is converted into infrared ray by gear flame cover.
Owing to taking above technical scheme, the present invention has following beneficial effect:
The present invention is due to active flammable premixed gas body, the needed air of gas fuel burning all comes from the primary air of premix, without auxiliary air, again because air supply system of the present invention is not directly heated and heats up by flame, thereby 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, simple in structure, easy to process, with low cost, durable in use.
Compared with the prior art, the present invention have advantages of security performance good, burning usefulness high, infrared ray transformation efficiency is high, heat loss is little, easily igniting and the life-span 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 variation 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.
The specific embodiment
Below, with reference to accompanying drawing, specific embodiments of the invention are elaborated.
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 on it, and it is also provided with premixed gas outlet 21; Wherein, Gas Pipe 1 can be connected to fuel gas entrance so that fuel gas to be provided, and air intake can directly be opened on fuel gas pre-mixing apparatus 2 (not shown) directly to introduce air; Further, fuel gas pre-mixing apparatus 2 is interior can be provided with blower fan (not shown), thereby introduces air 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 can be also 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 interval preset distances; This predetermined distance can be adjusted as required, and for example in certain embodiments, this distance can be 10mm, or in other embodiments, this distance can be also 50mm;
Multiple gear flame covers 8, it is arranged on the lower surface of reflecting plate 4, and each interval preset distance between described multiple gear flame cover 8; As a rule, in the situation that two discharges 9 are set, it is preferred that four gear flame covers are set, that is to say, every 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 corresponding three or more gear flame covers of a discharge;
Wherein, in the both side surface of gear flame cover 8, offer multiple flame grooves 7 of disturbing.
In the present invention, be not particularly limited the quantity of mozzle 5, it can arbitrarily arrange as required, and, mozzle 5 can only be arranged on a side of discharge 9, but preferably, multiple mozzles 5 are disposed on the both sides of discharge 9 along the length direction of discharge 9, for example, shown in Fig. 1 or Fig. 3.
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 taper shape (as shown in Figure 3 and Figure 4) that the shape of burner 6 can be reduced for flat-shaped duckbill (as depicted in figs. 1 and 2) or diameter.Arrange be like this 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 being sent forms jet under blast, this jet pressure will be greater than the rising buoyancy of heated air always, thereby has effectively avoided auxiliary air to reflux and the possibility of fire extinguishing.Due to the drainage of mozzle, burner is away from discharge, and the thermal-flame at burner place is away from feeder, thus effectively avoided feeder and internal mix combustion gas heated and produce the possibility of blast and fire extinguishing.
In the present invention, the premixed gas snorkel 3 being 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.On discharge 9, be provided with the mozzle 5 that several cross-sectional areas are less than discharge 9, and the outlet side of mozzle 5 (being processed to the conical burner 6 that flat-shaped duckbill or diameter reduce), from burner, with the air mixture gas output of mode of jet ejection, be less than air inflow always, therefore air mixture has the effect that is aggregated and carries out secondary mixing under blast pressure in discharge, in the situation that air-supply flow velocity is greater than air-out flow velocity, any position that premixed gas snorkel 3 is positioned at discharge all will can significantly not affect the gas output of each burner, the flexibility of premixed gas snorkel 3 installation sites will improve the flexibility that various device is manufactured 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, (in illustrated embodiment, being exactly flexure type) that also can be processed into flexure type, suitable for reading and the discharge of water conservancy diversion combustion tube is connected, and end opening is burner.In other embodiments of the invention, can as required mozzle be processed into linear pattern or flexure type, changeable, mozzle can any layout be arranged on discharge, preferred mode is that mozzle is set in a row, to facilitate the installation of continuous length gear flame cover.
In the present invention, metal gear flame cover is set apart from a distance, burner front, is provided with and somely disturbs flame hole or disturb flame groove on gear flame cover, gear flame cover can be arc, can be also rectangle.Air mixture through gas collection drainage is fully being jet-like blue-flame under burning, from flame root 2/3 length place, be provided with gear flame cover, on gear flame cover, have some flame hole or grooves of disturbing, preferably by disturbing flame groove, open the both sides at flame kernel line, to more be conducive to flame to separate like this, and make heat concentrate on the baking to gear flame cover and directly burn burning heating object surface without updraft, simultaneously, if gear flame cover disturb flame groove or hole just to venthole, thereby will be blown out and be increased igniting difficulty due to flaming.In fact the high temperature gear flame cover being heated by blue-flame is exactly infrared generator, the infrared ray part heating object producing absorbs and is partly reflected back, therefore, on gear flame cover, be 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 sealing burner.
Specifically, in the present invention, as shown in Figure 1, along the length direction of discharge 9, burner 6 is that each interval is arranged with disturbing flame groove 7.Like this, the venthole of burner 6 not can with disturb flame groove 7 and align on the length direction of discharge 9, thereby can reach above-mentioned effect.
Further, of the present invention first implements, and cross section semicircular in shape or arch or the arc of gear flame cover 8 as depicted in figs. 1 and 2, and are as can be seen from the figure disturbed flame groove 7 and are 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 going out atmospheric pressure, and air-flow is smooth and toast heating object without updraft.。
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.And 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 that light at described burner place can be heated to 800-1100 ℃ so that flaming heat energy is converted into infrared ray by gear flame cover.
Be understandable that to those skilled in the art, the present invention can also comprise necessary support, thereby facilitates installation and the assembling of above-mentioned all parts, and this is the conventional technological means of those skilled in the art, does not therefore illustrate.
The present invention in use, by the air-fuel ratio of setting, open gas valve and start premix blower fan, air mixture is fed to premixed gas snorkel 3 under certain blast, after discharge 9 is evenly shunted, by several mozzles 5, air mixture is exported to burner 6 in the mode of jet, after lighting, fuel gas is blue combustion vehement roasting gear flame cover to incandescent state in gear flame cover 8, at this moment, the temperature of gear flame cover will reach 800 ℃-1100 ℃, the heat energy of direct combustion be converted to infrared ray, and heating thing is carried out to penetration infrared heating.
Claims (9)
1. an infrared heating device, is characterized in that, comprising:
Fuel gas pre-mixing apparatus, is provided with fuel gas entrance and air intake on it, and it is also provided with premixed gas outlet;
Premixed gas snorkel, its one end as entrance is connected to described 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 described discharge, and with described discharge interval preset distance;
Multiple gear flame covers, it is arranged on the lower surface of described reflecting plate, and each interval preset distance between described multiple gear flame cover; And
Multiple mozzles, its one end is connected to the sidewall of discharge, and the other end is through described reflecting plate and extend in gear flame cover; Wherein, that end that described mozzle extend in gear flame cover is formed as burner, and interval, the bottom surface preset distance of burner and gear flame cover;
Wherein, in the both side surface of gear flame cover, offer multiple flame grooves of disturbing.
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 mozzles arrange 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 with described in disturb flame groove be each interval arrange.
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 or arc.
6. according to the infrared heating device described in claim 1 or 2 or 4 or 5, it is characterized in that, the cross-sectional area of described mozzle is less than the cross-sectional area of described discharge.
7. according to the infrared heating device described in claim 1 or 2 or 4 or 5, it is characterized in that, described burner be shaped as the taper shape that flat-shaped duckbill or diameter reduce.
8. according to the infrared heating device described in claim 1 or 2 or 4 or 5, 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.
9. according to the infrared heating device described in claim 1 or 2 or 4 or 5, it is characterized in that, 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.
Priority Applications (1)
| 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 |
|---|---|---|---|
| CN201410038509.5A CN103759261B (en) | 2014-01-27 | 2014-01-27 | A kind of infrared heating device |
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| CN103759261A true CN103759261A (en) | 2014-04-30 |
| CN103759261B 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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| CN103759261B (en) | 2016-01-06 |
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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. |