CN106568084A - Non-contact infrared emitter - Google Patents
Non-contact infrared emitter Download PDFInfo
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- CN106568084A CN106568084A CN201510655973.3A CN201510655973A CN106568084A CN 106568084 A CN106568084 A CN 106568084A CN 201510655973 A CN201510655973 A CN 201510655973A CN 106568084 A CN106568084 A CN 106568084A
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- ignition electrode
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- frame body
- infrared emitter
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Abstract
The invention discloses a non-contact infrared emitter. The non-contact infrared emitter includes a mixing portion, a compression portion, and a combustion portion; the upper end of the compression portion is connected to the mixing portion, and the lower end of the compression portion is connected to the combustion portion; the mixing portion includes a gas nozzle and a combustion air opening; the gas nozzle is fixed on the top of the mixing portion; the combustion air opening is positioned on a side part of the mixing portion; an air blast device is arranged outside the combustion air opening. The non-contact infrared emitter is simple in structure, is easy to produce, can increase the air intake volume of combustible mixed gas, can achieve an optimal mixing ratio of the combustion air and the combustible gas, can reduce gas consumption, and can improve the radiation combustion efficiency. The problem that a ceramic jacket sheath of an igniting needle is broken due to uneven thermal expansion can be overcome, the service life of the igniting needle is prolonged, and the working stability can be improved.
Description
Technical field
The present invention relates to industry heating technical field, relates in particular to be applied to a kind of industry heating, the non-contact infrared irradiator of processing is dried.
Background technology
With the progress of technology, with infrared radiation for material carries out being evaporated processing, the common technology being increasingly becoming in current industry heating field.This technology relative atmospheric convective drying has energy consumption low, the good advantage of dry mass.
In prior art, gas-fired infrared radiation generator mainly includes：Infrared emitter radiates from bottom to top the positive radiant burner and infrared ray of material from the antenna with side radiation direction burner radiated from left and right sides to radiation material.And rarely have radiation source from top to bottom to radiate the reverse Gas-fired Radiator in Municipal of material.In practice, generally it is placed on what material to be processed lay low on processing conveyer belt, is dried by the heating that heating work region receives radiant burner with load mode.
For the positive gas-fired infrared radiator that infrared ray autoradiolysis source radiates from bottom to top material：Intercepting between radiation source and material to be processed has conveyer belt, and conveyer belt bears ultrared direct radiation, and material to be processed bears radiation indirectly across conveyer belt, it is impossible to realize infrared ray direct radiation, and heat drying efficiency is low, it is impossible to reach dry mass standard；And for gas-fired infrared radiator of the infrared ray autoradiolysis source by side lateral radiation material：, away from radiation source, heat drying is uneven, and effect is also undesirable for material.
A reverse gas infrared radiation generator of the prior art, including mixing unit, compression unit and combustion section.Combustion gas and air are entered by mixing unit, and burning is lighted in combustion section after compression unit is confused, and produce infra-red radiation, and direct radiation heating is carried out to material by infra-red radiation.Wherein, mixing unit includes small-power combustion gas entrance port and combustion air mouth, the small-power combustion gas entrance port and combustion air mouth are all located at mixing unit top, and combustion gas enters mixing unit by small-power combustion gas entrance port, while the air around driving under ejector action synchronously enters mixing unit.The problem that this technical scheme is present is the ratio to guarantee air in mixed gas, and the gas quantity entered by small-power combustion gas entrance port is little, causes the power of infra-red radiation not high.Additionally, in existing this reverse gas infrared radiation generator, also exist light combustion section spark pin sealing it is bad, be heated uneven fracture using spark pin overcoat for a long time, easy gas leakage causes to misfire；Infrared emitter is heated wire netting, causes the problems such as infra-red radiation is uneven, temperature adjustment is difficult.How a kind of infrared radiator of both having supported reverse combustion gas is designed, while and the reverse gas infrared radiation generator of the problems referred to above can be overcome, it is the work that those skilled in the art need to carry out invasive thinking.
The content of the invention
The present invention provides a kind of non-contact infrared emitter, it is intended to solve drawbacks described above.
The present invention adopt concrete technical scheme be：
A kind of non-contact infrared emitter, including mixing unit, compression unit and combustion section；The upper end connection mixing unit of the compression unit, lower end connection combustion section；The mixing unit includes gas nozzle and combustion air mouth, and the gas nozzle is fixed on the top of mixing unit, and the combustion air mouth is located at the sidepiece of mixing unit, and the combustion air mouth outside is provided with air-blast device.
By using this technical scheme：Fuel gas enters mixing unit top by gas nozzle, simultaneously combustion air is entered in mixing unit in the presence of the air-blast device in outside by combustion air mouth, then both enter compression unit jointly, it is compressed in the inside of compression unit, fuel gas fully confuses to form combustion mixture with combustion air, enters back into combustion section and is burnt.Compared with prior art, fuel gas respectively enters mixing unit rather than drives combustion air to enter mixing unit by fuel gas with combustion air from two positions.Thus, improve the overall intake of combustion mixture.Meanwhile, combustion air and fuel gas that quantified controlling respectively enters mixing unit can be passed through, both mixed proportions are optimal, radiant combustion efficiency is improve while reducing gas consumption.
Preferably, in above-mentioned non-contact infrared emitter：The combustion section includes housing, burner plate and igniter, and the burner plate is provided with the burner port of insertion, the burner plate and is fixed on housing bottom.More preferably：The housing is metal shell, and the burner plate is heat-stable ceramic plate, and the burner port is uniformly concavo-convex to be distributed in burning plate surface.
By using this technical scheme：Radiation happening part is controlled on ceramic wafer, compared to traditional metallic plate radiation source, radiation profiles are more stable controllable, are more evenly distributed.Without visible flame during ceramic gas-fired infrared combustion system burner combustion, there are energy-saving and environmental protection, safe and stable.
It is further preferred that in above-mentioned non-contact infrared emitter：The combustion section also includes outer frame body and ceramic insulation portion, the top and bottom opening of the outer frame body, inwall are provided with steam vent, ceramic insulation portion bottom is fixed as one with outer frame body, and space of leaking out, and the space of leaking out are provided between sidepiece and outer frame body inwall just to the steam vent；The housing upper end stretches out that outer frame body is connected with compression unit, lower end is held by ceramic insulation portion.More have choosing is：Also include fixed mount, the fixed mount is fixed on outer frame body top and housing lower end is held out against in ceramic insulation portion.It may further be preferable that in above-mentioned non-contact infrared emitter：The igniter is fixed on the housing body sidewall, and the igniter is located at housing lower section.
By using this technical scheme：Heat-insulated protection to housing bottom is realized with ceramic insulation portion, simultaneously, outside cooling wind is entered inside outer frame body from outer frame body top, housing exterior walls are realized with supplement heat rejecter, prevents housing overheated, and discharge through steam vent of the space from the side wall of outer frame body that leak out, the bottom of outer frame body is circulated, circulation oxygen supply is realized in the burning to combustion section.
Preferably, in above-mentioned non-contact infrared emitter：The combustion section also includes auxiliary combustion net, and the auxiliary combustion net is fixed on outer frame body inwall, and the igniter is located at the online side of the auxiliary combustion.
By using this technical scheme：Auxiliary combustion net is set, it is in order that the completely combustion mixture that also do not burn is ignited again in the auxiliary combustion net metal surface of high temperature, form hot-air to rise, thermal updrafts and input air pressure from top to bottom reach dynamic equilibrium, and remaining combustion mixture is stranded in combustion section and fully burns.So as to realize that combustion mixture reaches the effect burnt completely.
It is further preferred that in above-mentioned non-contact infrared emitter：The igniter includes ignition electrode, ignition electrode overcoat, ignition electrode inner sleeve；The ignition electrode overcoat Jing outer frame body outer walls are fixed in ceramic insulation portion, and described ignition electrode inner sleeve one end is stretched into inside outer frame body, the other end and ignition electrode overcoat connect, and the ignition electrode stretches into outer frame body inner side through the ignition electrode overcoat and ignition electrode inner sleeve；The ignition electrode overcoat is with the ignition electrode inner sleeve all using ceramics composition.Preferably, in above-mentioned non-contact infrared emitter：Female thread is arranged with outside the ignition electrode, external screw thread is arranged with the ignition electrode, the ignition electrode overcoat is connected with ignition electrode inner sleeve by the female thread and external screw thread engagement.
By using this technical scheme：Engaged using the screw thread between ignition electrode overcoat and ignition electrode inner sleeve, realize the fastened to each other of ignition electrode inner sleeve and ignition electrode overcoat, ignition electrode inner sleeve is located at outer frame body inner side, heating temperature is higher and ignition electrode outer sheath temperature is relatively low, both thermal expansion and contraction degrees are different, on the one hand ensure that on the other hand the hermetic seal of ignition electrode rises space there is provided contracting using screw thread engagement, overcome the problem that the ceramic sheath of traditional ignition electrode ruptures because non-homogeneous expansion is even.
It is further preferred that in above-mentioned non-contact infrared emitter：The auxiliary combustion net adopts nickel chromium triangle ferroaluminium mesh grid.
Compared with prior art, present configuration is simple, easily prepared, improves the overall intake of combustion mixture, combustion air is optimal with the mixed proportion of fuel gas, reduces gas consumption, improves radiant combustion efficiency.Overcome ignition electrode ceramic coat sheath expanded by heating it is uneven and rupture problem, extend the service life of ignition electrode, improve the stability of work.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is the side structure schematic view of the present invention, and air-blast device is eliminated in Fig. 2；
Fig. 3 is the structural representation of igniter in Fig. 2；
Fig. 4 is the close-up schematic view of a-quadrant in Fig. 1.
Reference is as follows with the corresponding relation of part：
1st, mixing unit；2nd, compression unit；3rd, combustion section；11st, gas nozzle；12nd, combustion air mouth；31st, housing；32nd, burner plate；33rd, igniter；34th, outer frame body；35th, fixed mount；36th, auxiliary combustion net；341st, steam vent；342nd, ceramic insulation portion；343rd, leak out space；331st, ignition electrode；332nd, ignition electrode overcoat；333rd, ignition electrode inner sleeve；5th, air-blast device.
Specific embodiment
With reference to embodiments the present invention will be further described.
Embodiment 1 as Figure 1-4：
A kind of non-contact infrared emitter, including mixing unit 1, compression unit 2 and combustion section 3；Upper end connection mixing unit 1, the lower end connection combustion section 3 of the compression unit 2；The mixing unit 1 includes gas nozzle 11 and combustion air mouth 12, and the gas nozzle 11 is fixed on the top of mixing unit 1, and the combustion air mouth 12 is located at the side wall of mixing unit 1, and the outside of the combustion air mouth 12 is provided with air-blast device 5.
The combustion section 3 includes housing 31, burner plate 32, igniter 33, outer frame body 34, fixed mount 35 and auxiliary combustion net 36.The burner plate 32 is provided with the burner port of insertion, the burner plate 32 and is fixed on the bottom of housing 31.The housing 31 is metal shell, and the burner plate 32 is heat-stable ceramic plate, and the burner port is uniformly concavo-convex to be distributed in the surface of burner plate 32.The combustion section 3 also includes outer frame body 34 and ceramic insulation portion 342, the top and bottom opening of the outer frame body 34, inwall are provided with steam vent 341, the bottom of ceramic insulation portion 342 is fixed as one with outer frame body 34, space 343 of leaking out, and the space 343 of leaking out are provided between sidepiece and the inwall of outer frame body 34 just to the steam vent 341；The upper end of the housing 31 stretches out that outer frame body 34 is connected with compression unit 2, lower end is held by ceramic insulation portion 342.The fixed mount 35 is fixed on the top of outer frame body 34 and the lower end of housing 31 is held out against in ceramic insulation portion 342.The auxiliary combustion net 36 using nickel chromium triangle ferroaluminium mesh grid, be fixed on the inwall of outer frame body 34, the igniter 33 is located at auxiliary combustion net 36 top.The igniter 33 includes ignition electrode 331, ignition electrode overcoat 332, ignition electrode inner sleeve 333；The ignition electrode overcoat 332 is provided with female thread, the ignition electrode inner sleeve 333 is provided with external screw thread, the outer wall of 332 Jing outer frame bodies of ignition electrode overcoat 34 is fixed in ceramic insulation portion 343, and described one end of ignition electrode inner sleeve 333 is stretched into inside outer frame body 34, the other end realizes that both engagements are connected by external screw thread with the female thread of ignition electrode overcoat 332.The ignition electrode 331 stretches into the inner side of outer frame body 34 through the ignition electrode overcoat 332 and ignition electrode inner sleeve 333；The ignition electrode overcoat 332 is with the ignition electrode inner sleeve 333 all using ceramics composition.
In practice：The fuel gas that the combustion air that respectively drum of quantified controlling air-blast device 5 send is blowed with gas nozzle 11；Fuel gas is entered in mixing unit 1 by gas nozzle 11.Meanwhile, combustion air is entered in mixing unit 1 under the air blast of air-blast device 5 by combustion air mouth 12.Then, combustion air and fuel gas enter compression unit 2 jointly, are compressed in the narrow and small inside of compression unit 2, fuel gas and combustion air is set fully to confuse to form combustion mixture, combustion mixture enters combustion section 3, after ignited device 33 is lighted, burns on burner plate 32.In combustion, heat-insulated protection to the bottom of housing 31 is realized with ceramic insulation portion 342, simultaneously, outside cooling wind enters the inner side of outer frame body 34 from the top of outer frame body 34, supplement heat rejecter is realized to the outer wall of housing 31, prevents housing 31 overheated, these cooling wind are discharged through steam vent 341 of the space 343 from the side wall of outer frame body 34 that leak out, and circulate the bottom of outer frame body 34, and circulation oxygen supply is realized in the burning to combustion section 3.Meanwhile, without burning, completely combustion mixture is ignited again in the auxiliary metal surface of combustion net 36 of high temperature, forms hot-air and rises, and thermal updrafts and input air pressure from top to bottom reach dynamic equilibrium, realize that combustion mixture reaches the effect burnt completely.
The above, is only a certain item embodiment of the present invention, the restriction for being not only restricted to above-described embodiment of the invention, similar modification, change and replacement that all technical spirits according to the present invention are made to above-described embodiment, is still fallen within the range of technical scheme.Protection scope of the present invention is only defined by tbe claims.
Claims (10)
1. a kind of non-contact infrared emitter, it is characterised in that：Including mixing unit（1）, compression unit（2）And combustion section（3）；The compression unit（2）Upper end connection mixing unit（1）, lower end connection combustion section（3）；The mixing unit（1）Including gas nozzle（11）With combustion air mouth（12）, the gas nozzle（11）It is fixed on mixing unit（1）Top, the combustion air mouth（12）Positioned at mixing unit（1）Side wall, the combustion air mouth（12）Outside is provided with air-blast device（5）.
2. as claimed in claim 1 a kind of non-contact infrared emitter, it is characterised in that：The combustion section（3）Including housing（31）, burner plate（32）And igniter（33）, the burner plate（32）It is provided with the burner port of insertion, the burner plate（32）It is fixed on housing（31）Bottom.
3. as claimed in claim 2 a kind of non-contact infrared emitter, it is characterised in that：The housing（31）For metal shell, the burner plate（32）For heat-stable ceramic plate, the burner port is uniformly concavo-convex to be distributed in burner plate（32）Surface.
4. as claimed in claim 3 a kind of non-contact infrared emitter, it is characterised in that：The combustion section（3）Also include outer frame body（34）With ceramic insulation portion（342), the outer frame body（34）Top and bottom opening, inwall be provided with steam vent（341）, the ceramic insulation portion（342）Bottom and outer frame body（34）It is fixed as one, sidepiece and outer frame body（34）Space of leaking out is provided between inwall（343）, and the space of leaking out（343）Just to the steam vent（341）；The housing（31）Stretch out outer frame body in upper end（34）With compression unit（2）Connection, lower end are by ceramic insulation portion（342）Hold.
5. as claimed in claim 4 a kind of non-contact infrared emitter, it is characterised in that：The combustion section（3）Also include fixed mount（35）, the fixed mount（35）It is fixed on outer frame body（34）Top and by housing（31）Lower end is held out against in ceramic insulation portion（342）On.
6. as claimed in claim 5 a kind of non-contact infrared emitter, it is characterised in that：The igniter（33）It is fixed on the outer frame body（34）On the wall of side, the igniter（33）Positioned at the housing（31）Lower section.
7. as claimed in claim 6 a kind of non-contact infrared emitter, it is characterised in that：The combustion section（3）Also include auxiliary combustion net（36）, the auxiliary combustion net（36）It is fixed on outer frame body（34）On inwall, the igniter（33）Positioned at the auxiliary combustion net（36）Top.
8. as claimed in claim 7 a kind of non-contact infrared emitter, it is characterised in that：The igniter（33）Including ignition electrode（331）, ignition electrode overcoat（332）, ignition electrode inner sleeve（333）；The ignition electrode overcoat（332）Jing outer frame bodies（34）Outer wall is fixed on ceramic insulation portion（342）On, the ignition electrode inner sleeve（333）Stretch into outer frame body in one end（34）The internal, other end and ignition electrode overcoat（332）Connection, the ignition electrode（331）Through the ignition electrode overcoat（332）With ignition electrode inner sleeve（333）Stretch into outer frame body（34）Inner side；The ignition electrode overcoat（332）With the ignition electrode inner sleeve（333）All using ceramics composition.
9. as claimed in claim 8 a kind of non-contact infrared emitter, it is characterised in that：The ignition electrode overcoat（332）It is provided with female thread, the ignition electrode inner sleeve（333）It is provided with external screw thread, the ignition electrode overcoat（332）With ignition electrode inner sleeve（333）By the female thread and external screw thread engagement connection.
10. as claimed in claim 9 a kind of non-contact infrared emitter, it is characterised in that：The auxiliary combustion net（36）Using nickel chromium triangle ferroaluminium mesh grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655973.3A CN106568084A (en) | 2015-10-13 | 2015-10-13 | Non-contact infrared emitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655973.3A CN106568084A (en) | 2015-10-13 | 2015-10-13 | Non-contact infrared emitter |
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| CN106568084A true CN106568084A (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510655973.3A Pending CN106568084A (en) | 2015-10-13 | 2015-10-13 | Non-contact infrared emitter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644769A (en) * | 2018-04-12 | 2018-10-12 | 上海蓝炽热能科技有限公司 | Infrared radiator |
| CN108644770A (en) * | 2018-04-12 | 2018-10-12 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation system |
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| CN205119060U (en) * | 2015-10-13 | 2016-03-30 | 上海蓝炽热能科技有限公司 | Non -contact infra -red transmitter |
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| CN1517590A (en) * | 2003-01-14 | 2004-08-04 | Lg电子株式会社 | Ignitor and dryer with the ignitor |
| CN1971188A (en) * | 2005-11-21 | 2007-05-30 | 中国农业大学 | Grain drying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644769A (en) * | 2018-04-12 | 2018-10-12 | 上海蓝炽热能科技有限公司 | Infrared radiator |
| CN108644770A (en) * | 2018-04-12 | 2018-10-12 | 上海蓝炽热能科技有限公司 | Reverse gas infrared radiation system |
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Application publication date: 20170419 |
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