CN107341291A - A kind of electric heating roller-way furnace structure optimization method - Google Patents
A kind of electric heating roller-way furnace structure optimization method Download PDFInfo
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- CN107341291A CN107341291A CN201710431335.2A CN201710431335A CN107341291A CN 107341291 A CN107341291 A CN 107341291A CN 201710431335 A CN201710431335 A CN 201710431335A CN 107341291 A CN107341291 A CN 107341291A
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Abstract
The invention discloses a kind of electric heating roller-way furnace structure optimization method, step is：S01, establish a variety of roller-way furnace body models with different designs parameter；S02, each roller-way furnace body model is imported to ICEM CFD softwares, progress model repairing and mesh generation, and the grid file generated after mesh generation is directed into ANSYS Fluent softwares；S03, material property parameter, calculation of boundary conditions and selection computation model are set in ANSYS Fluent softwares, calculated after being initialized to computational fields using solver；S04, the destination file for obtaining ANSYS Fluent softwares are imported in CFD POST, the dimensionless temperature difference coefficient of the burner hearth central cross-section of each model are analyzed, by the less roller-way furnace body model of temperature difference coefficient preferably.The electric heating roller-way furnace structure optimization method of the present invention has the advantages that cost is low, the optimization time is short.
Description
Technical field
The invention mainly relates to roller furnace technical field, refers in particular to a kind of electric heating roller-way furnace structure optimization method.
Background technology
Along with the quickly development of new energy industry, lithium battery industry becomes focus of today, and lithium battery material is
Determine the key factor of its performance.The demand of lithium battery material increased dramatically, and be badly in need of efficient large-scale production.Electric heating
Roller furnace is then scale continous way agglomerating plant indispensable in a kind of lithium battery material preparation process, with lithium battery material city
Equipment capacity, the body of heater of agglomerating plant electric heating roller furnace improve one after another in the gradual increase of field demand, lithium battery material manufacturing firm
Section is constantly widened, and saggar fltting speed gradually increases, and causes fire box temperature uniformity to be more difficult to ensure, but lithium battery material system
Standby technological requirement burner hearth internal difference in temperature is within ± 5 DEG C, before temperature is uniformly distributed and is lithium battery material excellent quality in burner hearth
Guarantee is proposed, electric heating roller furnace fire box temperature homogeneity question turns into the main bottleneck for restricting agglomerating plant development.
Tradition, mainly by having there is experience, is produced with difference to the method for electric heating roller-way furnace structure optimization at present
A variety of body of heater model machines of structure, thermometric experiment then is carried out using thermocouple, is measured under electric heating roller furnace model machine stable state
Inside burner hearth at upper, middle and lower three position temperature, choose the less prototype structure of the temperature difference as final parameter of structure design,
The production of roller furnace finished product is carried out again.Using this electric heating roller-way furnace structure optimization method, time, fund cost are higher, structure
Adjustment direction blindly, lacks enough theory supports, the optimization design cycle is longer, it is impossible to meets lithium battery material preparation technology couple
The requirement of agglomerating plant.
The content of the invention
The technical problem to be solved in the present invention is that：For technical problem existing for prior art, the present invention provides one
The electric heating roller-way furnace structure optimization method that kind cost is low, the optimization time is short.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of electric heating roller-way furnace structure optimization method, step are：
S01, establish a variety of roller-way furnace body models with different designs parameter；
S02, each roller-way furnace body model imported into ICEM CFD softwares, carry out model repairing and mesh generation, and by net
The grid file generated after lattice division is directed into ANSYS Fluent softwares；
S03, material property parameter, calculation of boundary conditions and selection is set to calculate mould in ANSYS Fluent softwares
Type, calculated after being initialized to computational fields using solver；
S04, the destination file that ANSYS Fluent softwares are calculated are imported in the poster processing soft CFD-POST, to not
Dimensionless temperature difference coefficient with the burner hearth central cross-section of model is analyzed, by the less roller-way furnace body mould of temperature difference coefficient
Type is preferably.
As the further improvement of above-mentioned technical proposal, the design parameter that preferred scheme is carried out at least once is adjusted, and
Repeat step S02~S04, it is determined that final roller-way furnace body model.
As the further improvement of above-mentioned technical proposal, the design parameter includes burner hearth the ratio of width to height, Elema spacing, entered
One or more in gas port diameter and diameter of outlet.
As the further improvement of above-mentioned technical proposal, in step S01, roller furnace is established by Solidworks softwares
Body of heater model.
As the further improvement of above-mentioned technical proposal, the model file form is * .x_t forms；The grid file
Form is * .msh forms.
As the further improvement of above-mentioned technical proposal, the material property parameter in the step S03 includes density, specific heat
Appearance and thermal conductivity.
As the further improvement of above-mentioned technical proposal, the calculation of boundary conditions in the step S03 includes：Air inlet class
Type is speed entrance, speed v=0.2m/s；Gas outlet type is pressure export, pressure P=2Pa；Elema surface type is wall
Face, surface heat flux q=5.8 × 104W/m2；Body of heater outer surface type is wall, convection transfer rate h=15W/ (DEG C
m2)。
As the further improvement of above-mentioned technical proposal, the computation model in the step S03 includes turbulence model and spoke
Penetrate model.
As the further improvement of above-mentioned technical proposal, the turbulence model is standard k- ε two-equation models；The radiation
Model is DO radiation patterns.
As the further improvement of above-mentioned technical proposal, the temperature difference coefficient is defined as：
Wherein,For the mean temperature of burner hearth central cross-section, σ is the standard deviation of all node temperatures of burner hearth central cross-section.
Compared with prior art, the advantage of the invention is that：
The present invention electric heating roller-way furnace structure optimization method, by numerical simulation software ANSYS (including ICEM CFD,
ANSYS Fluent and CFD-POST software), on existing roller furnace architecture basics, establish the roller furnace mould of a variety of different structures
Type, by the way that the temperature difference coefficient of different model burner hearth central cross-sections is analyzed, chooses the less model of temperature difference coefficient and make
For the design of final electric heating roller furnace, there is rigorous theoretical foundation, the optimization for electric heating roller-way furnace structure provides rationally
Direction, fire box temperature uniformity and the burning of lithium battery material can be ensured with effectively save design cost, shortening structure optimization cycle
Quality is tied, complies with requirement of the current lithium battery material manufacturer to electric heating roller furnace, promotes the development of lithium battery industry.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is the sectional view of electric heating roller furnace in the present invention.
Label represents in figure：1st, body of heater shell；2nd, fire proof material of furnace lining；3rd, gas outlet；4th, electric heating Elema；5th, saggar；
6th, roller rod；7th, air inlet.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Fig. 2 the structure of the electric heating roller furnace in the present embodiment includes body of heater shell 1, fire proof material of furnace lining 2, gone out
Gas port 3, electric heating Elema 4, saggar 5, roller rod 6 and air inlet 7, its central roll rod 6 are used to convey saggar 5, and electric heating Elema 4 is used for
Furnace interior is heated.
As shown in figure 1, the electric heating roller-way furnace structure optimization method of the present embodiment, comprises the following steps：
S01, on the architecture basics of existing electric heating roller furnace, by change design parameter, by three-dimensional drawing software (such as
Solidworks softwares) body of heater of roller furnace (can be a section or more piece) is established a variety of there are different designs to join the geometry of numbers
Model file.Wherein design parameter includes one kind in burner hearth the ratio of width to height, Elema spacing, air inlet diameter and diameter of outlet
It is or a variety of；Wherein burner hearth the ratio of width to height is：2:1~1:2, Elema spacing is：200~350mm, air inlet diameter are：20~
30mm, diameter of outlet are：200~300mm；
S02, the model file of at least two or more different electric heating roller furnaces is imported into ICEM CFD softwares respectively, carry out mould
Type is repaired and mesh generation, and generation grid file then is imported into ANSYS Fluent softwares again；Wherein model file form
For * .x_t forms；Grid file form is * .msh forms；
S03, material property parameter, calculation of boundary conditions and selection is set to calculate mould in ANSYS Fluent softwares
Type, calculated after being initialized to computational fields and using solver.Wherein material property parameter include density, specific heat capacity and
Thermal conductivity；Calculation of boundary conditions includes：Air inlet type is velocity inlet (speed entrance), velocity magnitude v=0.2m/
s；Gas outlet type is pressure outlet (pressure export), pressure size P=2Pa；Elema surface type is wall
(wall), surface heat flux q=5.8 × 104W/m2；Body of heater outer surface type is wall (wall), convection transfer rate h=
15W/(℃·m2)；Computation model includes turbulence model and radiation patterns；Wherein turbulence model is standard k- ε two-equation models；
Radiation patterns are DO radiation patterns；
S04, the destination file that ANSYS Fluent softwares are calculated are imported in the poster processing soft CFD-POST, to not
Dimensionless temperature difference coefficient with the burner hearth central cross-section of model is analyzed, using the less model of temperature difference coefficient as preferably
Scheme.Wherein destination file form is：* .dat forms；Temperature difference coefficient is defined as：
Wherein,For the mean temperature of burner hearth central cross-section, σ is the standard deviation of all node temperatures of burner hearth central cross-section.Temperature
Poor coefficient represents section of burner hearth temperature distribution evenness, and its value is smaller, and fire box temperature distribution is more uniform.
S05, design parameter adjustment at least once is done to preferred scheme, repeat step 2~4, it is determined that final electric heating roller-way
Stove model.
Specifically, with reference to two different embodiments, the present invention will be further described：
Embodiment one：
In step S01, the structure optimization to electric heating roller furnace is realized by burner hearth the ratio of width to height in adjusted design parameter,
Specially：Two kinds of roller furnace models are established, burner hearth the ratio of width to height of wherein original structure model is：2:1, and the burner hearth of new model one is wide
Height is than being 1.5:1, the design parameter all same such as other burner hearth the ratio of width to height.Step S02~S04 is performed, in step S04, is drawn
The dimensionless temperature difference coefficient of two kinds of roller furnace model burner hearth central cross-sectionsIt is as shown in table 1 below：
Table 1：
| Model | Burner hearth the ratio of width to height | Temperature difference coefficient |
| Original structure model | 2:1 | 4.32×10-3 |
| New model one | 1.5:1 | 3.91×10-3 |
According to comparing result, by the less new model one of temperature difference coefficient preferably, then preferred scheme is done to
The adjustment of few burner hearth the ratio of width to height, repeats step S02~S04, calculates the temperature difference coefficient of the roller furnace model after adjustment,
Contrasted with preferred scheme, choose the minimum model of section of burner hearth temperature difference coefficient as final electric heating roller furnace model.
Embodiment two：
The present embodiment differs only in embodiment one, is realized by the Elema spacing in adjusted design parameter to electricity
The structure optimization of hot roller furnace, the wide high other design parameters of burner hearth do not adjust then.
Specifically, in step S01, three kinds of roller furnace models are established, the Elema spacing of wherein original structure model is
250mm, the Elema spacing of new model two is 220mm, and the Elema spacing of new model three is 280mm.Then step S02 is performed
~S04, in step S04, the dimensionless temperature difference coefficient of three kinds of roller furnace model burner hearth central cross-sections is calculatedCalculate knot
Fruit is as shown in table 2 below：
Table 2：
| Model | Elema spacing (mm) | Temperature difference coefficient |
| Original structure model | 250 | 4.32×10-3 |
| New model two | 220 | 4.28×10-3 |
| New model three | 280 | 4.75×10-3 |
According to comparing result, by the less new model two of temperature difference coefficient preferably, then preferred scheme is done to
The adjustment of a few Elema spacing, repeats step S02~S04, calculates the temperature difference coefficient of the roller furnace model after adjustment,
Contrasted with preferred scheme, choose the minimum model of section of burner hearth temperature difference coefficient as final electric heating roller furnace model.
In other embodiments, the adjustment to electric heating roller furnace modelling parameter also includes to air inlet diameter and exhaust
One or more in mouth diameter are modified, and realize the optimization of electric heating roller-way furnace structure.
The present invention electric heating roller-way furnace structure optimization method, by numerical simulation software ANSYS (including ICEM CFD,
ANSYS Fluent and CFD-POST software), on existing roller furnace architecture basics, establish the roller furnace mould of a variety of different structures
Type, by the way that the temperature difference coefficient of different model burner hearth central cross-sections is analyzed, chooses the less model of temperature difference coefficient and make
For the design of final electric heating roller furnace, there is rigorous theoretical foundation, the optimization for electric heating roller-way furnace structure provides rationally
Direction, fire box temperature uniformity and the burning of lithium battery material can be ensured with effectively save design cost, shortening structure optimization cycle
Quality is tied, complies with requirement of the current lithium battery material manufacturer to electric heating roller furnace, promotes the development of lithium battery industry.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, the protection of the present invention should be regarded as
Scope.
Claims (10)
1. a kind of electric heating roller-way furnace structure optimization method, it is characterised in that step is：
S01, establish a variety of roller-way furnace body models with different designs parameter；
S02, each roller-way furnace body model is imported to ICEM CFD softwares, progress model repairing and mesh generation, and grid is drawn
The grid file generated after point is directed into ANSYS Fluent softwares；
S03, material property parameter, calculation of boundary conditions and selection computation model are set in ANSYS Fluent softwares, it is right
Computational fields are calculated after being initialized using solver；
S04, the destination file that ANSYS Fluent softwares are calculated are imported in the poster processing soft CFD-POST, to different moulds
The dimensionless temperature difference coefficient of the burner hearth central cross-section of type is analyzed, and the less roller-way furnace body model of temperature difference coefficient is made
For preferred scheme.
2. electric heating roller-way furnace structure optimization method according to claim 1, it is characterised in that carry out preferred scheme at least
Design parameter adjustment once, and repeat step S02~S04, it is determined that final roller-way furnace body model.
3. electric heating roller-way furnace structure optimization method according to claim 1, it is characterised in that the design parameter includes stove
One or more in thorax the ratio of width to height, Elema spacing, air inlet diameter and diameter of outlet.
4. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that in step
In rapid S01, roller-way furnace body model is established by Solidworks softwares.
5. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that described
Model file form is * .x_t forms；The grid file form is * .msh forms.
6. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that described
Material property parameter in step S03 includes density, specific heat capacity and thermal conductivity.
7. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that described
Calculation of boundary conditions in step S03 includes：Air inlet type is speed entrance, speed v=0.2m/s；Gas outlet type is pressure
Power exports, pressure P=2Pa；Elema surface type is wall, surface heat flux q=5.8 × 104W/m2；Body of heater outer surface
Type is wall, convection transfer rate h=15W/ (DEG C m2)。
8. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that described
Computation model in step S03 includes turbulence model and radiation patterns.
9. electric heating roller-way furnace structure optimization method according to claim 8, it is characterised in that the turbulence model is standard
K- ε two-equation models；The radiation patterns are DO radiation patterns.
10. electric heating roller-way furnace structure optimization method as claimed in any of claims 1 to 3, it is characterised in that described
Temperature difference coefficient is defined as：
Wherein,For the mean temperature of burner hearth central cross-section, σ is the standard deviation of all node temperatures of burner hearth central cross-section.
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Cited By (7)
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| CN110534776A (en) * | 2019-09-17 | 2019-12-03 | 武汉雄韬氢雄燃料电池科技有限公司 | A method of the more Heap Allocation inner-cavity structure optimizations of fuel cell based on fluent emulation |
| CN111400958A (en) * | 2020-04-15 | 2020-07-10 | 天华化工机械及自动化研究设计院有限公司 | ANSYS-based simulation method for oxygen content distribution of high-temperature carbonization furnace |
| CN112311279A (en) * | 2020-10-19 | 2021-02-02 | 江苏大学 | Thermoelectric power generation module for fluid waste heat recovery and structure optimization method thereof |
| WO2021207952A1 (en) * | 2020-04-15 | 2021-10-21 | 天华化工机械及自动化研究设计院有限公司 | High-temperature carbonization furnace oxygen content distribution simulation method based on ansys |
| CN113935188A (en) * | 2021-11-01 | 2022-01-14 | 西安慧金科技有限公司 | Method for optimizing alternating current electric furnace lining structure by using isothermal hot zone |
| WO2022099712A1 (en) * | 2020-11-16 | 2022-05-19 | 天华化工机械及自动化研究设计院有限公司 | Simulation method for heating performance of graphite rod in high-temperature carbonization furnace |
| WO2022099716A1 (en) * | 2020-11-16 | 2022-05-19 | 天华化工机械及自动化研究设计院有限公司 | Method for simulating thermal insulation property of external thermal insulation material of high-temperature carbonization furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534776A (en) * | 2019-09-17 | 2019-12-03 | 武汉雄韬氢雄燃料电池科技有限公司 | A method of the more Heap Allocation inner-cavity structure optimizations of fuel cell based on fluent emulation |
| CN111400958A (en) * | 2020-04-15 | 2020-07-10 | 天华化工机械及自动化研究设计院有限公司 | ANSYS-based simulation method for oxygen content distribution of high-temperature carbonization furnace |
| WO2021207952A1 (en) * | 2020-04-15 | 2021-10-21 | 天华化工机械及自动化研究设计院有限公司 | High-temperature carbonization furnace oxygen content distribution simulation method based on ansys |
| CN112311279A (en) * | 2020-10-19 | 2021-02-02 | 江苏大学 | Thermoelectric power generation module for fluid waste heat recovery and structure optimization method thereof |
| WO2022099712A1 (en) * | 2020-11-16 | 2022-05-19 | 天华化工机械及自动化研究设计院有限公司 | Simulation method for heating performance of graphite rod in high-temperature carbonization furnace |
| WO2022099716A1 (en) * | 2020-11-16 | 2022-05-19 | 天华化工机械及自动化研究设计院有限公司 | Method for simulating thermal insulation property of external thermal insulation material of high-temperature carbonization furnace |
| CN113935188A (en) * | 2021-11-01 | 2022-01-14 | 西安慧金科技有限公司 | Method for optimizing alternating current electric furnace lining structure by using isothermal hot zone |
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Effective date of registration: 20201201 Address after: 410000, 1 / F, microelectronic equipment center building, 1025 xinkaipu Road, Tianxin District, Changsha City, Hunan Province Applicant after: Hunan ShuoKe thermal Intelligent Equipment Co.,Ltd. Address before: 410111, No. 1025, paving road, Tianxin District, Hunan, Changsha Applicant before: FORTY-EIGHTH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. |
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Application publication date: 20171110 |