CN104080210A - High-temperature resistant infrared radiation plate - Google Patents
High-temperature resistant infrared radiation plate Download PDFInfo
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- CN104080210A CN104080210A CN201410354625.8A CN201410354625A CN104080210A CN 104080210 A CN104080210 A CN 104080210A CN 201410354625 A CN201410354625 A CN 201410354625A CN 104080210 A CN104080210 A CN 104080210A
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- infrared radiation
- temperature resistant
- high temperature
- radiation panel
- resistant infrared
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Abstract
The invention provides a high-temperature resistant infrared radiation plate long in service life and suitable for boilers. The infrared radiation plate is mounted on the inner wall of a boiler for greatly improving the infrared radiation capacity of the inner wall of the hearth so as to increase the energy utilization rate. A plurality of mounting through holes are formed in the high-temperature resistant infrared radiation plate, wherein an infrared radiation layer is arranged on one side of the high-temperature resistant infrared radiation plate while a thermal-protective layer is arranged on the other side of the high-temperature resistant infrared radiation plate; the high-temperature resistant infrared radiation plate can be fixed in the hearth through anchoring pins so as to allow the infrared radiation layer to radiate the energy onto a heat-producing workpiece uniformly; an insulation layer is arranged on the back surface of the infrared radiation plate for allowing the energy to be transferred to the heat-producing workpiece through radiation as much as possible, reducing the possibility that flame is in contact with the fireproofing material surface of the boiler hearth directly, prolonging the service life of a kiln boiler and improving the economical performance. The high-temperature resistance infrared radiation plate is convenient for mounting and dismounting, long in service life, firm and reliable, can increase the energy utilization rate and prolong the service life of the boiler greatly, and has excellent wide popularization value.
Description
Technical field
The present invention relates to a kind of high temperature resistant infrared radiation panel.
Background technology
China's Industrial Stoves and industrial boiler are the main bodys of energy resource consumption, and Industrial Stoves and the industrial boiler ubiquity heat efficiency are low, the phenomenon that energy waste is larger.In Industrial Stoves burner hearth, conduct heat and have: the convective heat transfer of product radiation, the radiation of the furnace wall surface of solids and furnace gas radiation and the furnace gas of flame radiation, burning.In simple terms, participate in the 3 kinds of basic objects that have of the interior heat exchanging process of stove: furnace gas, furnace wall, heating and calcining thing.That heat transfer between furnace gas and heating object mainly relies on convective heat transfer below at 800 DEG C; Between 800 DEG C～1000 DEG C, be to rely on convection current and radiation, when temperature, the heat conduction between furnace gas and heating object is main during higher than 1000 DEG C relies on infrared radiation heat exchange simultaneously, and the heat 90% that heating object absorbs realizes by radiation heat transfer.Most of Industrial Stoves burner hearth is interior by refractory brick, castable refractory, and fire-resistant light insulating brick or ceramic fibre are built by laying bricks or stones.These refractory materials have fire resistance, under high temperature, intensity is high, the characteristics such as stability height can meet kiln needs, but the far infrared transmissivity of these refractory materials generally in 0.35 left and right (as at 1100 DEG C: chamotte brick: 0.35～0.65, mullite 0.4, aluminium oxide 0.18～0.52, refractory fibre 0.35).In order to solve the poor problem of inboard wall of burner hearth infrared radiation ability, some boilers are provided with infrared radiating coating at inboard wall of burner hearth, and the emissivity of infrared radiation coating is 0.85～0.95.Infrared radiation heat transfer is exactly the radianting capacity heating object that utilizes infrared ray uniqueness, object is heated, at a certain temperature, heating object gives off the infrared waves with certain penetration capacity, make heating object generation molecular oscillation, produce energy level transition, the infrared ray of the certain wave band of radiation, thus produce heat.Its feature one is heat absorption object thermally equivalent, the 2nd, and heat from inside to outside, thereby reduced heating time, improve energy utilization rate.
But the basic weakness of far infrared coating technology is that coating is easily aging, continuous efflorescence is in actual use dropped or by air-flow erosion, thermal infrared emissivity progressively decays, and loses infra red radiation function, and thermal effect is passed decline in time.
Summary of the invention
The object of the invention is to propose a kind of high temperature resistant infrared radiation panel that is applicable to boiler and long service life, be installed on inboard wall of burner hearth, can greatly improve the infrared radiation ability of inboard wall of burner hearth, thereby improve energy utilization rate.
High temperature resistant infrared radiation panel of the present invention is provided with several through hole is installed; The one side of described high temperature resistant infrared radiation panel is infrared radiation layer, and another side is thermal insulation layer.High temperature resistant infrared radiation panel can be fixed in burner hearth by anchor studs etc., the method phase total emissivity of infrared radiation layer is 0.85～0.97, and adjusting angle as required, energy even is radiated on heating workpiece, also can stack design infrared radiation plate structure and radian according to kiln type and heated parts simultaneously, the energy even absorbing is radiated on workpiece.The radiant panel back side has thermal insulation layer, can stop heat to be delivered to furnace wall, make energy as much as possible by radiant transfer to heating workpiece, its back temperature is low 300～500 DEG C compared with temperature in stove; Radiant panel can reduce flame and directly contact furnace wall refractory surface, significantly extends kiln useful life, increases economic efficiency.And, radiant panel is installed on furnace wall and can be slowed down the thermal shock that compact refractory material causes by flue gas rapid heat cycle and damage, can reduce the quality requirement of refractory material, reduce brickwork cost.High temperature resistant infrared radiation panel can adopt high temperature sintering preparation, has long service life, can reach 5～10 years, suitable with the designed life of Industrial Stoves and boiler, even higher.
Further, the infrared radiation layer of described high temperature resistant infrared radiation panel is prepared by black matrix material or far-infrared material, pass through high temperature sintering, infrared radiation panel in actual use, infrared radiation ability is unattenuated, ensure for a long time the energy-efficient of heating furnace and boiler, energy-saving efficiency reaches 15～30%, compared with the prior art has further and improves.
Further, the thermal insulation layer of described high temperature resistant infrared radiation panel is ceramic fiber blanket, to improve heat-insulating capability and useful life.
Further, the cross section of described high temperature resistant infrared radiation panel is arc,, as much as possible absorbed energy even is radiated on heating workpiece all just to the heated parts in burner hearth with the normal direction that ensures all infrared radiation layers in burner hearth, improves capacity usage ratio.
Further, the infrared radiation layer of described high temperature resistant infrared radiation panel is provided with hollow convex and goes out cavity and/or fin, to absorb the energy in more flue gas, and this energy is reflected back to heating workpiece.
Further, described high temperature resistant infrared radiation panel material is by 90 ~ 95 parts of cordierites or mullite or carborundum or corundum-mullite, 5 ~ 10 parts of composite mixed high infrared radiation material phosphor composings, and described composite mixed high infrared radiation material powder is by Fe
2o
355 ~ 75 parts, 15 ~ 30 parts of NiO, 5 ~ 10 parts of ZnO, MnO
20.5 ~ 1.5 part, 0.5 ~ 2 part of CoO, Cr
2o
33 ~ 5 parts, CeO
20.05 ~ 0.2 part, Er
2o
30.05 ~ 0.2 part, Nd
2o
30.05 ~ 0.2 part, Yb
2o
30.05 ~ 0.2 part of composition, adopts blend to grind, fill saggar high temperature sintering and form through broken ball milling.
High temperature resistant infrared radiation panel of the present invention is installed and convenient disassembly, and long service life is fixing reliable, capacity usage ratio and the useful life that can greatly improve stove, has good promotional value.
Brief description of the drawings
Fig. 1 is the structural representation of high temperature resistant infrared radiation panel of the present invention.
Fig. 2 is the cutaway view of high temperature resistant infrared radiation panel of the present invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
Embodiment 1:
As shown in the figure, the one side of the high temperature resistant infrared radiation panel 1 of the present embodiment is infrared radiation layer 2, and another side is thermal insulation layer 3, and wherein thermal insulation layer 3 is ceramic fiber blanket.
The cross section of high temperature resistant infrared radiation panel 1 is arc,, as much as possible absorbed energy even is radiated on heating workpiece all just to the heated parts in burner hearth with the normal direction that ensures all infrared radiation layers 2 in burner hearth, improves capacity usage ratio.
High temperature resistant infrared radiation panel 1 is fixed in burner hearth by anchor studs 4, the method phase total emissivity of infrared radiation layer 2 is 0.85～0.97, and adjusting angle as required, energy even is radiated on heating workpiece, also can stack design infrared radiation plate structure and radian according to kiln type and heated parts simultaneously, the energy even absorbing is radiated on workpiece.The radiant panel back side has thermal insulation layer 3, can make energy as much as possible by radiant transfer to heating workpiece, its back temperature is low 300～500 DEG C compared with temperature in stove; High temperature resistant infrared radiation panel 1 can reduce flame and directly contact furnace wall refractory surface, significantly extends kiln useful life, increases economic efficiency.And, radiant panel is installed on furnace wall and can be slowed down the thermal shock that compact refractory material causes by flue gas rapid heat cycle and damage, can reduce the quality requirement of refractory material, reduce brickwork cost.High temperature resistant infrared radiation panel 1 can adopt high temperature sintering preparation, has long service life, can reach 5～10 years, suitable with the designed life of Industrial Stoves and boiler, even higher.
The infrared radiation layer 2 of high temperature resistant infrared radiation panel is provided with fin 5 and hollow convex goes out cavity 6, to absorb the energy in more flue gas, and this energy is reflected back to heating workpiece.
The material of high temperature resistant infrared radiation panel 2 is by 90 ~ 95 parts of cordierites or mullite or carborundum or corundum-mullite, 5 ~ 10 parts of composite mixed high infrared radiation material phosphor composings, and described composite mixed high infrared radiation material powder is by Fe
2o
355 ~ 75 parts, 15 ~ 30 parts of NiO, 5 ~ 10 parts of ZnO, MnO
20.5 ~ 1.5 part, 0.5 ~ 2 part of CoO, Cr
2o
33 ~ 5 parts, CeO
20.05 ~ 0.2 part, Er
2o
30.05 ~ 0.2 part, Nd
2o
30.05 ~ 0.2 part, Yb
2o
30.05 ~ 0.2 part of composition, adopts blend to grind, fill saggar high temperature sintering and form through broken ball milling.
Claims (6)
1. a high temperature resistant infrared radiation panel, is characterized in that described high temperature resistant infrared radiation panel is provided with several through hole is installed; The one side of described high temperature resistant infrared radiation panel is infrared radiation layer, and another side is thermal insulation layer.
2. high temperature resistant infrared radiation panel according to claim 1, is characterized in that the infrared radiation layer of described high temperature resistant infrared radiation panel is prepared by black matrix material or infra-red material.
3. high temperature resistant infrared radiation panel according to claim 1 and 2, the thermal insulation layer that it is characterized in that described high temperature resistant infrared radiation panel is ceramic fiber blanket.
4. high temperature resistant infrared radiation panel according to claim 3, the cross section that it is characterized in that described high temperature resistant infrared radiation panel is arc.
5. high temperature resistant infrared radiation panel according to claim 1, the infrared radiation layer that it is characterized in that described high temperature resistant infrared radiation panel is provided with hollow convex and goes out cavity and/or fin.
6. high temperature resistant infrared radiation panel according to claim 1, it is characterized in that described high temperature resistant infrared radiation panel material is by 90 ~ 95 parts of cordierites or mullite or carborundum or corundum-mullite, 5 ~ 10 parts of composite mixed high infrared radiation material phosphor composings, described high temperature resistant infrared radiation panel material is by 90 ~ 95 parts of cordierites or mullite or carborundum or corundum-mullite, 5 ~ 10 parts of composite mixed high infrared radiation material phosphor composings; Described composite mixed high infrared radiation material powder is by Fe
2o
355 ~ 75 parts, 15 ~ 30 parts of NiO, 5 ~ 10 parts of ZnO, MnO
20.5 ~ 1.5 part, 0.5 ~ 2 part of CoO, Cr
2o
33 ~ 5 parts, CeO
20.05 ~ 0.2 part, Er
2o
30.05 ~ 0.2 part, Nd
2o
30.05 ~ 0.2 part, Yb
2o
30.05 ~ 0.2 part of composition, adopts blend to grind, fill after saggar high temperature sintering, then forms through broken ball milling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354625.8A CN104080210A (en) | 2014-08-07 | 2014-08-07 | High-temperature resistant infrared radiation plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354625.8A CN104080210A (en) | 2014-08-07 | 2014-08-07 | High-temperature resistant infrared radiation plate |
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| CN104080210A true CN104080210A (en) | 2014-10-01 |
Family
ID=51601199
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410354625.8A Pending CN104080210A (en) | 2014-08-07 | 2014-08-07 | High-temperature resistant infrared radiation plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734069A (en) * | 1993-07-21 | 1995-02-03 | Kyoshin Eng:Kk | High-temperature pressure tank for dry distillation of organic material |
| CN104101213A (en) * | 2014-07-24 | 2014-10-15 | 苏州罗卡节能科技有限公司 | Energy-saving heating furnace |
| CN203964672U (en) * | 2014-07-24 | 2014-11-26 | 苏州罗卡节能科技有限公司 | Energy-saving heating furnace |
| CN204104152U (en) * | 2014-08-07 | 2015-01-14 | 苏州罗卡节能科技有限公司 | High temperature resistant infrared radiation panel |
-
2014
- 2014-08-07 CN CN201410354625.8A patent/CN104080210A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734069A (en) * | 1993-07-21 | 1995-02-03 | Kyoshin Eng:Kk | High-temperature pressure tank for dry distillation of organic material |
| CN104101213A (en) * | 2014-07-24 | 2014-10-15 | 苏州罗卡节能科技有限公司 | Energy-saving heating furnace |
| CN203964672U (en) * | 2014-07-24 | 2014-11-26 | 苏州罗卡节能科技有限公司 | Energy-saving heating furnace |
| CN204104152U (en) * | 2014-08-07 | 2015-01-14 | 苏州罗卡节能科技有限公司 | High temperature resistant infrared radiation panel |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |