CN101913247B - Temperature-regulated assembled type honeycomb ceramic infrared heating module - Google Patents
Temperature-regulated assembled type honeycomb ceramic infrared heating module Download PDFInfo
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- CN101913247B CN101913247B CN 201010250425 CN201010250425A CN101913247B CN 101913247 B CN101913247 B CN 101913247B CN 201010250425 CN201010250425 CN 201010250425 CN 201010250425 A CN201010250425 A CN 201010250425A CN 101913247 B CN101913247 B CN 101913247B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 241000264877 Hippospongia communis Species 0.000 claims description 61
- 238000009413 insulation Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 8
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 7
- 229910001120 nichrome Inorganic materials 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 7
- 239000011449 brick Substances 0.000 description 6
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- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910008332 Si-Ti Inorganic materials 0.000 description 1
- 229910006749 Si—Ti Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 229910052863 mullite Inorganic materials 0.000 description 1
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Abstract
The invention discloses a temperature-regulated assembled type honeycomb ceramic infrared heating module which is characterized in that a heating module shell is formed by arranging a brattice, a rear cover plate and a honeycomb ceramic panel with honeycomb holes in a split mode; in the shell, a heating wire layer is arranged at the back of the honeycomb ceramic panel; structure layers of a ceramic cover plate, a silicon dioxide aerogel heat insulating layer, a middle heat insulating layer, a second heat insulating layer and an infrared reflection insulating layer are sequentially arranged from the heating wire layer to the rear cover plate; temperature measuring holes are arranged in the rear cover plate and the structure layers in a perforated way; temperature measuring thermocouples are arranged in the temperature measuring holes; and the temperature sensing ends of the temperature measuring thermocouples are supported to the surface of the heating wire layer. The invention is capable of independently replacing members, improving the efficiency, reducing the use cost and prolonging the service life.
Description
Technical field
The present invention relates to electro-heat equipment, more specifically say the honeycomb ceramic infrared heating device, is the electro-heat equipment for Packing Machine.
Background technology
Honeycomb ceramic infrared heating module is a kind of electro-heat equipment that is applied in the Packing Machine, improves to some extent in the mode of fire-resistant anti-porcelain dish although the honeycomb ceramic infrared heating device twines resistance wire than only depending on more in the early time, and the raising of efficient is very limited.Actual showing, existing ceramic honey comb heating brick exists the problems such as efficient is not high, radiation temperature is inadequate, if further improve the increase that radiation temperature will cause power, this not only loses efficient, and has greatly shortened the life-span of heater element.
The ceramic honey comb heating brick of existing structure form also has problems in the following areas:
Because of can not Measurement accuracy heating brick surface temperature, can't realize real-time closed loop thermal control, the application of the higher full-automatic Packing Machine that can not meet the demands;
The ceramic honey comb heating brick is integral sintered, after damaging, heater element (resistance wire) just must scrap whole heating brick, originally can carry out the part of regeneration is also abandoned thereupon, this needs to expend suitable electric energy or heat energy carries out sintering in manufacture process and with regard to these parts, therefore obviously caused waste, comprised that the waste of the energy and resource two aspects is all larger.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, a kind of temperature-regulated assembled type honeycomb ceramic infrared heating module is provided, in the hope of can independently changing member, raise the efficiency, reduce use cost, increasing the service life.
Technical solution problem of the present invention adopts following technical scheme:
The design feature of temperature-regulated assembled type honeycomb ceramic infrared heating module of the present invention is:
The structure of heating module housing is set to: coaming plate, back shroud are set in split and with the ceramic honey comb panel of honeycomb hole, described back shroud is fixedly connected with by ceramic bolt with coaming plate; Described ceramic honey comb panel buckles into the interior week of coaming plate;
In described housing, the heating wire layer is arranged on the back of described ceramic honey comb panel, and each structure sheaf that spontaneous heated filament layer to back shroud sets gradually is respectively: ceramic cover plate, aerosil heat insulation layer, middle heat insulation layer, the second heat insulation layer and infrared external reflection heat insulation layer;
In described back shroud and each structure sheaf, run through being provided with thermometer hole, temperature thermocouple is arranged in the described thermometer hole, and the temperature-sensitive end of described temperature thermocouple is butted on the surface of heating wire layer.
Described ceramic honey comb panel and ceramic cover plate are set consist of butted structure, form box body with butted structure, be provided with locating slot on the described ceramic panel, described heating wire layer is entrenched in the described locating slot.
On described back shroud, being positioned at its inboard periphery has a convex edge, and described back shroud is to be fixedly connected with by ceramic bolt with coaming plate with its convex edge.
The connection wire of described heating wire layer and the holding wire of temperature thermocouple are drawn in back shroud respectively.
H/ Φ=2.5～4.1 are set, and wherein, h is the thickness of described ceramic honey comb panel, and Φ is the aperture of the honeycomb hole on the described ceramic honey comb panel.
Described infrared external reflection heat insulation layer is the infrared reflection film that is formed with nano material on the quartz substrate surface.
Described infrared reflection film is take nano TiO 2-SiO2 as raw material, and the consumption of setting by weight Si: Ti is 1: 1, and the refractive index of described infrared reflection film is 1.2-1.6.
Described infrared reflection film be with nano TiO 2-SiO2 raw material by spraying process or gel method at the quartz substrate surface forming.
Described heating wire layer adopts nichrome wire Cr20Ni80, and described nichrome wire is carried out pre-oxidation treatment, and described pre-oxidation treatment is that the infrared heating module energising that will install is heated to 300-400 ℃ and be incubated 5-10 hour, then naturally cools off.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is modular construction, and each member can independently be changed, and has eliminated unnecessary waste.
2, the present invention is directed to each heating module temperature thermocouple is set respectively, surface temperature that can the Measurement accuracy heating brick is beneficial to realize real-time closed loop thermal control, the application of the higher full-automatic Packing Machine that meets the demands;
3, heat loss of the present invention is little, the thermal efficiency is high, energy-saving efficiency is remarkable, than prior art, and energy-conservation reaching more than 30%.
4, the present invention has effectively protected equipment when reducing heat loss, extension device service life, reduces use cost.
Description of drawings
Fig. 1 is internal structure schematic diagram of the present invention.
Fig. 2 is back structures schematic diagram of the present invention.
Fig. 3 a is that ceramic honey comb panel master looks schematic diagram among the present invention.
Fig. 3 b is the A-A cutaway view of Fig. 3 a.
Fig. 4 a is that the ceramic cover plate master looks schematic diagram among the present invention.
Fig. 4 b is the B-B cutaway view of Fig. 4 a.
Fig. 5 is the butted structure schematic diagram of ceramic honey comb panel and ceramic cover plate among the present invention.
Fig. 6 is honeycomb schematic diagram in the ceramic honey comb panel among the present invention.
Fig. 7 is temperature distribution history among the present invention.
Number in the figure: heat insulation layer, 8 infrared external reflection heat insulation layers, 9 temperature thermocouples, 10 ceramic bolts, 11 coaming plates in the middle of 1 ceramic honey comb panel, 1a locating slot, the vertical convex tendon of 1b, 1c louvre, 2 heating wire layers, 3 ceramic cover plates, 4 aerosil heat insulation layers, 5 back shrouds, 6 second heat insulation layers, 7.
The specific embodiment
Referring to Fig. 1, Fig. 2, the structure of present embodiment heating module housing is set to: split arranges coaming plate 11, back shroud 5 and ceramic honey comb panel 1, and back shroud 5 is fixedly connected with by ceramic bolt 10 with coaming plate 11; Ceramic honey comb panel 1 buckles into the interior week of coaming plate 11;
In housing, heating wire layer 2 is arranged on the back of ceramic honey comb panel 1, and each structure sheaf that spontaneous heated filament layer 2 to back shroud 5 sets gradually is respectively: ceramic cover plate 3, aerosil heat insulation layer 4, middle heat insulation layer 7, the second heat insulation layer 6 and infrared external reflection heat insulation layer 8;
For the highest, in the present embodiment, adopt the ceramic cover plate 3 identical with the material of ceramic honey comb panel 1 as the first high temperature thermodynamic barrier of multilayer heat insulation at the regional temperature of the most close heat generating components, had the fixedly effect of heating wire concurrently; Gapless covering a layer thickness is the aerosil heat insulation layer 4 of 3mm on ceramic cover plate 3, aerosil heat insulation layer 4 has high thermal resistance, low heat capacity, its intensity is high, density is low, high temperature resistant, and thermal conductivity factor is extremely low, hydrophobic, not flammable, environmental protection, corrosion-resistant, and thermal conductivity factor is 0.015 (w/mk) under the normal temperature.
Middle heat insulation layer 7 is used for the heat that shielding is come from 4 conduction of aerosil heat insulation layer, select the composite heat-isolating silicate felt of commercially available low heat conduction, its convection current and little, the comprehensive adiabatic efficiency of heat radiation value are high, embody in an embodiment good heat-insulating property, especially its thermal conductivity factor is more steady, it is wider to adapt to warm area, density is little, thermal conductivity factor is low, Heat stability is good, serviceability temperature is higher, hydroscopicity is less, chloride ion content is low, have the characteristics such as certain tensile strength, good processability, and the product cost performance is greatly improved.
The second heat insulation layer 6 is selected KN nanometer micropore heat-insulating material, and it has very low pyroconductivity, and volume density is 330kg/m3, and thermal conductivity factor is 0.020W/m.K in the time of 100 ℃.
In the present embodiment, infrared external reflection heat insulation layer 8 is the infrared reflection films that are formed with nano material on the quartz substrate surface, infrared reflection film is as raw material take nano TiO 2-SiO2, control suitable Si-Ti ratio, to regulate so that the refractive index of film between 1.2-1.6, selecting by weight Si: Ti in the present embodiment is 1: 1 consumption, form infrared reflection film with spraying process or gel method on the quartz substrate surface, the infrared ray that is radiated the infrared reflection film surface be expected 80%-90% in addition more the highland be reflected back, form together high-quality thermodynamic barrier with the infrared reflection film on the infrared external reflection heat insulation layer 8, heat is unlikely to be distributed, can greatly improve the thermal efficiency on the one hand, also effectively protected on the other hand equipment, extension device service life;
Can utilize most effectively the thermophysical property of each layer behind the heat insulating construction of employing multiple layer combination, the material that is suitable for high-temperature area all can play a role with the heat-insulating material that is suitable for middle temperature, low-temperature region with having a role to play, both accomplished to make product to have good energy-efficient performance, and can make again product reach best cost performance.
In the present embodiment, in back shroud 5 and each structure sheaf, run through being provided with thermometer hole, temperature thermocouple 9 is arranged in the thermometer hole, and the temperature-sensitive end of temperature thermocouple is butted on the surface of heating wire layer 2.
On back shroud 5, be positioned at its inboard periphery one convex edge is arranged, back shroud 5 is to be fixedly connected with by ceramic bolt with coaming plate 11 with its convex edge, if need to change heating wire, then can open ceramic bolt, take out the opposite honeycomb and change the heat generating components that wherein damages, remainder can repeatedly use, and has saved material and cost.
The connection wire of heating wire layer 2 and the holding wire of temperature thermocouple 9 are drawn in back shroud 5 respectively, are connected to control after the thermocouple electromotive force of reflection dut temperature is drawn by holding wire and automatically control to realize temperature with the single-chip microcomputer input.
Described ceramic honey comb panel 1 is set in the present embodiment consists of butted structure with ceramic cover plate 3, to form box body, form locating slot 1a with the vertical convex tendon 1b in each road that is set in parallel on the ceramic honey comb panel 1 in the box body, heating wire layer 2 is entrenched among the locating slot 1a, honeycomb hole is positioned at the place, position of locating slot 1a, on the vertical convex tendon 1b in each road, be evenly distributed with each louvre 1c.Adopt the boxlike honeycomb in the present embodiment, heating wire is placed in the interior locating slot of box body, both has been equivalent to increase by one heat insulation layer, and heating wire tightly is stuck in the groove, is not subjected to the disturbance of electromagnetic force shake, has increased the service life of heating wire considerablely.The material of ceramic honey comb panel is the porous industrial ceramic, this commercially available material mainly is by cordierite (2MgO.2AL2O3.5SiO2) at present, aluminium titanates (AL2TiO5), mullite (3AL2O3.2SiO2) and corundum (AL2O3) are composited, there is the parallel channels of the honeycomb shape of many perforations its inside, its function is to eliminate the thermal agitation on heating module surface, suppress convection current, reduce heat loss, can greatly improve the even distribution of hot-fluid, make heat that heater element produces mainly by far infrared in certain angular range to the heated body radiation, it is little to have thermal resistance, good heat conductivity, heat shock resistance waits by force overall merit.
In the implementation, based on thermodynamic principles, adopt CFD software that the honeycomb model is carried out analog computation, adopt continuity equation, the equation of momentum, energy equation and standard k-ε equations to set up the Mathematical Modeling that honeycomb conducts heat, use FLUENT software that model is found the solution.Obtained the detailed information that honeycomb conducts heat by finding the solution, particularly suppress convection current, reduce many wheels experimental study that the heat loss effect is carried out for the Calculation of Heat Transfer of convection current-radiation coupling in the larger aperture opposite honeycomb with for honeycomb, established under the Packing Machine service condition, the optimal proportion of opposite honeycomb physical dimension is h/ Φ=2.5～4.1, wherein, h is the thickness of ceramic honey comb panel, and Φ is the aperture of honeycomb on the ceramic honey comb panel, as shown in Figure 6.
Module back shroud 5 and coaming plate 11 are to fire the ceramic wafer that forms with high strength silica and Al 2 O 3 composition, ceramic bolt and screw technique are adopted in the assembling of cover plate and shell, both considered the heat-insulating property of element, increased again the reliability of electric insulation, the loading and unloading of pottery bolt are very convenient, are convenient to the maintenance of heat generating components and the recovery and reuse of useful part.
In the present embodiment, heating wire layer 2 adopts nichrome wire Cr20Ni80 (6J20), for increasing the service life, in the present embodiment, carry out pre-oxidation treatment for nichrome wire, that the infrared heating module that will install is switched in the air of drying and is heated to 300-400 ℃ and be incubated 5-10 hour, then naturally cooling.
Test is expressed, ceramic honey comb panel 1 consists of butted structure with ceramic cover plate 3 in the present embodiment, and the setting of honeycomb has desirable heat radiation angle, be suitable for very much Packing Machine and need the use of the firing equipment of certain distance baking, it distributes as shown in Figure 7 through optimizing the baking temperature that calculates, ordinate is the baking temperature T on the 170mm plane, heating module axis among the figure, represents with relative value, and the temperature of establishing the place, axis is 100%; Abscissa is along the Temperature Distribution attenuation curve of block length direction both sides on the 17mm plane.This temperature distribution history and infra-red radiation angle thereof have improved the baking temperature of heating module array greatly just, with respect to the processing identical product, the required number of modules of array will be expected obvious minimizing, thereby can be on the energy-conservation basis of module itself, that Packing Machine is realized extraly is energy-conservation owing to reduce module number.
Claims (9)
1. temperature-regulated assembled type honeycomb ceramic infrared heating module, the structure that it is characterized in that the housing of described heating module is set to: coaming plate (11), back shroud (5) are set in split and with the ceramic honey comb panel (1) of honeycomb hole, described back shroud (5) is fixedly connected with by ceramic bolt with coaming plate (11); Described ceramic honey comb panel (1) buckles into the interior week of coaming plate (11);
In described housing, heating wire layer (2) is arranged on the back of described ceramic honey comb panel (1), and spontaneous heated filament layer (2) to each structure sheaf that back shroud (5) sets gradually is respectively: ceramic cover plate (3), aerosil heat insulation layer (4), middle heat insulation layer (7), the second heat insulation layer (6) and infrared external reflection heat insulation layer (8);
In described back shroud (5) and each structure sheaf, run through being provided with thermometer hole, temperature thermocouple (9) is arranged in the described thermometer hole, and the temperature-sensitive end of described temperature thermocouple (9) is butted on the surface of heating wire layer (2).
2. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1, it is characterized in that arranging described ceramic honey comb panel (1) and consist of butted structure with ceramic cover plate (3), form box body with butted structure, be provided with locating slot (1a) on the described ceramic panel (1), described heating wire layer (2) is entrenched in the described locating slot (1a).
3. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1, it is characterized in that on described back shroud (5), being positioned at its inboard periphery has a convex edge, and described back shroud (5) is to be fixedly connected with by ceramic bolt (10) with coaming plate (11) with its convex edge.
4. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1 is characterized in that the connection wire of described heating wire layer (2) and the holding wire of temperature thermocouple (9) draw respectively in back shroud (5).
5. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1, it is characterized in that arranging h/ Φ=2.5～4.1, wherein, h is the thickness of described ceramic honey comb panel (1), and Φ is the aperture of the honeycomb hole on the described ceramic honey comb panel (1).
6. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1 is characterized in that described infrared external reflection heat insulation layer (8) is the infrared reflection film that is formed with nano material on the quartz substrate surface.
7. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 6 is characterized in that described infrared reflection film is take nano TiO 2-SiO2 as raw material, and the refractive index of described infrared reflection film is 1.2-1.6.
8. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 7, it is characterized in that described infrared reflection film be with nano TiO 2-SiO2 raw material by spraying process or gel method at the quartz substrate surface forming.
9. temperature-regulated assembled type honeycomb ceramic infrared heating module according to claim 1, it is characterized in that described heating wire layer (2) adopts nichrome wire Cr20Ni80, and described nichrome wire carried out pre-oxidation treatment, described pre-oxidation treatment be will install the infrared heating module energising be heated to 300-400 ℃ and be incubated 5-10 hour, then naturally cool off.
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| CN 201010250425 CN101913247B (en) | 2010-08-04 | 2010-08-04 | Temperature-regulated assembled type honeycomb ceramic infrared heating module |
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| CN 201010250425 CN101913247B (en) | 2010-08-04 | 2010-08-04 | Temperature-regulated assembled type honeycomb ceramic infrared heating module |
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| CN101913247B true CN101913247B (en) | 2013-03-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810083Y (en) * | 2005-03-21 | 2006-08-23 | 高叶波 | A ceramic electric heater |
| EP2026628A1 (en) * | 2007-08-14 | 2009-02-18 | UHLMANN PAC-SYSTEME GmbH & Co. KG | Device for heating a film |
| CN201230384Y (en) * | 2008-07-08 | 2009-04-29 | 广州市新力金属有限公司 | Cellular ceramic disc type electric heater |
| CN201248144Y (en) * | 2009-01-16 | 2009-05-27 | 陈国雄 | Electrothermic honeycomb ceramic infrared heating brick |
| CN201800241U (en) * | 2010-08-04 | 2011-04-20 | 安徽鑫阳能源开发有限公司 | Temperature-control-type assembled honeycomb ceramic infrared heating module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005050626A (en) * | 2003-07-31 | 2005-02-24 | Kyocera Corp | Ceramic heater and fuel cell using the same as well as microchemical chip |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810083Y (en) * | 2005-03-21 | 2006-08-23 | 高叶波 | A ceramic electric heater |
| EP2026628A1 (en) * | 2007-08-14 | 2009-02-18 | UHLMANN PAC-SYSTEME GmbH & Co. KG | Device for heating a film |
| CN201230384Y (en) * | 2008-07-08 | 2009-04-29 | 广州市新力金属有限公司 | Cellular ceramic disc type electric heater |
| CN201248144Y (en) * | 2009-01-16 | 2009-05-27 | 陈国雄 | Electrothermic honeycomb ceramic infrared heating brick |
| CN201800241U (en) * | 2010-08-04 | 2011-04-20 | 安徽鑫阳能源开发有限公司 | Temperature-control-type assembled honeycomb ceramic infrared heating module |
Non-Patent Citations (1)
| Title |
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| JP特开2005-50626A 2005.02.24 |
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