CN103951174A - Heating furnace for glass plates - Google Patents
Heating furnace for glass plates Download PDFInfo
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- CN103951174A CN103951174A CN201410144537.5A CN201410144537A CN103951174A CN 103951174 A CN103951174 A CN 103951174A CN 201410144537 A CN201410144537 A CN 201410144537A CN 103951174 A CN103951174 A CN 103951174A
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- wall
- bellows
- sheet glass
- furnace body
- case cover
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Abstract
A heating furnace for glass plates comprises a frame, and an upper furnace body and a lower furnace body both arranged on the frame; a glass plate conveying roll table is horizontally arranged between the upper furnace body and the lower furnace body; the inner wall of the upper furnace body is composed of a vertical wall, a diversion wall and a conflux wall; the vertical wall, the diversion wall and the conflux wall are successively connected to from an inner chamber of the upper furnace body; the outer side of the conflux wall is provided with a draught fan, and the inner side of the conflux wall is provided with a bellows; one end of the bellows is connected with the draught fan, and the other end of the bellows is provided with a convection bellows cover; the bellows is inside provided with at least one air blast port communicated with the convection bellows cover; the convection bellows cover is opposite to the glass plate conveying roll table an air-flow circulation loop in the convection bellows cover is provided with a heater; and the lower furnace body employs a radiation heating structure for realizing rapid raising of temperature on the upper surfaces of glass plates. By employing the heating furnace for glass plates, under the circumstance without improving power of the draught fan, the heating efficiency of the upper surfaces on glass plates is improved, and energy is saved.
Description
Technical field
The present invention relates to a kind of sheet glass heating unit, especially a kind of process furnace of sheet glass.
Background technology
In the industrial production of sheet glass tempering, traditional glass plate heating furnace is conventionally with radiation mode work, utilize the infrared rays of resistance heating element to heat sheet glass, such type of heating exists the long and low problem of heating efficiency heat-up time for some reflectivity and the higher glass kind of transmissivity.And in the production process of sheet glass tempering, the homogeneous heating of sheet glass is the most key, non-uniform heat flux can produce stress raisers at glass-board surface, thereby causes the flexural deformation of sheet glass, even explosion when serious.
Just occurred afterwards process furnace sheet glass being heated with convection type, this process furnace adopts jet flow heating technique, and high-temperature gas is jetted to glass pane surface, by the convective heat exchange of high-temperature gas and sheet glass, and completes the heating to sheet glass.
This convection oven has solved traditional radiation heating method length heat-up time and the low problem of heating efficiency effectively, but the furnace chamber cross section adopting due to process furnace is square, in the process of convection current, easily there is eddy current in the corner of adjacent wall in high-temperature gas, the retardation larger to the mobile generation of gas, thereby not only cause the waste of the energy, and affect the heats of sheet glass; Moreover in existing convection oven structure, when gas flow, pressure loss is large, in air channel, each portion pressure is unbalanced, is unfavorable for the homogeneous heating of sheet glass.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of process furnace of sheet glass, not only can solve the mobile eddy current problem of furnace chamber internal gas flow, and because be provided with corresponding device in the air channel of gas flow, thereby make gas flow more smooth and easy in save energy, make the heating of sheet glass rapider, more even, heats is even more ideal.
The present invention in order to solve the problems of the technologies described above adopted technical scheme is: a kind of process furnace of sheet glass, comprise frame and be arranged on upper furnace body and the lower furnace body in frame, glass sheets roller-way is horizontally set between upper furnace body and lower furnace body, the inwall of upper furnace body is by wall, training wall and the wall that confluxes form, wall, training wall and the wall that confluxes are connected to form the inner chamber of upper furnace body in turn, outside at the wall that confluxes is provided with blower fan, inner side at the wall that confluxes is provided with bellows, one end of bellows is connected with blower fan, the bellows the other end is provided with convection current case cover, in bellows, be provided with the blast orifice that at least one is communicated to convection current case cover, convection current case cover is relative with the rollgang of sheet glass, on the airflow circulation loop of convection current case cover inside, be provided with well heater, lower furnace body adopts radiant heating structure, to realize the fast lifting of sheet glass upper surface temperature.
Further, described training wall is connected and composed in turn by the plane of one or more snippets inclination.
Further, described training wall is connected and composed in turn by one or more snippets arc surface.
Further, described wall and/or the wall that confluxes are plane or arc surface.
Further, described bellows, its inside is provided with the guiding device that air-flow is led.
Further, described guiding device is made up of one or more flow deflector.
Further, described convection current case cover, its inside is provided with the part flow arrangement of diffusing air current.
Further, described part flow arrangement is made up of one or more dividing plate, and described multiple dividing plates are symmetricly set on the both sides of bellows blast orifice medullary ray.
Further, described bellows are provided with two blast orifices.
Further, described convection current case cover is cross section along air flow line in convection current case cover and becomes gradually large divergent contour.
The invention has the beneficial effects as follows:
1, upper furnace body or lower furnace body adopt the structure that wall, training wall are connected in turn with the wall that confluxes to form process furnace inner chamber, can make gas more unobstructed in convection circulation, eliminate the mobile eddy current problem of furnace chamber internal gas of the prior art, reduce gas pressure loss, improve the efficiency of the convective heating of air-flow, saved the energy.
2, in the air channel in bellows, set up guiding device, make the gas flow in air channel more smooth and easy, solve the problem of air current flow disorder in traditional structure, can effectively reduce air loss, in the situation that power of fan is constant, can improve blast 10% left and right, thereby improve the efficiency of sheet glass being carried out to convective heating, and save the energy.
3, in convection current case cover, part flow arrangement is set, can ensure to blow to glass pane surface the pressure size equalization of air-flow, thereby be more conducive to realize the homogeneous heating of sheet glass, and then improve the final product quality of toughened glass.
Brief description of the drawings
Fig. 1 is the first embodiment structural representation of the present invention.
Fig. 2 is the second embodiment structural representation of the present invention.
Fig. 3 is the C-C view of Fig. 1.
Fig. 4 is the part sectioned view of bellows in Fig. 1.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the partial enlarged drawing of convection current case cover in Fig. 1.
Fig. 7 is the A-A view of Fig. 6.
Fig. 8 is the B-B view of Fig. 7.
Fig. 9 is the another kind of embodiment figure of Fig. 8 median septum.
In figure, 1, blower fan, 2, bellows, 3, upper furnace body, 301, wall, 302, training wall, 303, the wall that confluxes, 4, bellows blast orifice I, 5, convection current case cover, 6, wind hole, 7, sheet glass, 8, lower furnace body, 9, frame, 10, glass sheets roller-way, 11, well heater I, 12, bellows blast orifice II, 13, bellows blast inlet, 14, flow deflector, 15, bellows end arc, 16, bellows side panel, 17, dividing plate, 18, well heater II, 19, shell.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is done to further concrete detailed explanation.
As shown in Figure 1, a kind of process furnace of sheet glass, comprise frame 9, heating furnace body is made up of upper furnace body 3 and lower furnace body 8, and be arranged in frame 9, glass sheets roller-way 10 is horizontally set between upper furnace body 3 and lower furnace body 8, in upper furnace body 3, it is convective heating mode, in lower furnace body 8, it is radiation heating mode, upper furnace body 3 is by wall 301, training wall 302 and the wall 303 that confluxes form, wall 301, training wall 302 is connected in turn with the wall 303 that confluxes, form the inner chamber of upper furnace body 3, outside at the wall 303 that confluxes is provided with blower fan 1, inner side at the wall 303 that confluxes is provided with bellows, one end of bellows is connected with blower fan, the bellows the other end is provided with convection current case cover 5, in bellows, be provided with the blast orifice that at least one is communicated to convection current case cover 5, the present embodiment is provided with two blast orifices, be bellows blast orifice I 4 and bellows blast orifice II 12.In the gas circulation loop of convection current case cover 5 inside, be provided with well heater I 11, for the gas that will blow on sheet glass is heated, convection current case cover 5 is relative with the rollgang 10 of sheet glass, and be provided with aerofoil in this relative side, aerofoil is provided with wind hole 6, for the gas in convection current case cover 5 is discharged to sheet glass, in lower furnace body 8, be provided with the well heater II for directly sheet glass 7 being carried out radiation heating.
Also can in upper furnace body 3, be radiation heating mode, the interior employing convective heating of lower furnace body 8 mode, as shown in Figure 2.
Described training wall 302 can be one section of plane tilting at an angle with wall 301 and the wall 303 that confluxes respectively, as shown in Figure 2; Also can be that the plane that multistage tilts connects and composes in turn; Can also be one section of arc surface, as shown in Figure 1; Or multi-section circular arc face connects and composes in turn.
Described wall 301 is plane or arc surface.
The described wall 303 that confluxes is arranged on the top inner face of upper furnace body 3 or the bottom inner face of lower furnace body 8, can be a smooth horizontal wall, can be also that arc surface or cross section are ∧ shape.
The present invention does not limit the shape of body of heater shell, no matter process furnace inner chamber is any structure, the shell 19 of body of heater can be identical with furnace chamber inner wall shape as shown in Figure 1, also can be different with furnace chamber inner wall shape, as shown in Figure 2.
As shown in Figure 4 and Figure 5, bellows 2 in the process furnace that the present embodiment adopts comprise that two parallel side panel 16 and two connect and compose side panel 16 the end arc bent plate 15 of a cavity in end, and end arc bent plate 15 and side panel 16 form the turning of air-flow in junction.In bellows 2, bellows blast orifice I 4 is respectively equipped with multiple flow deflectors 14 identical with bellows end curved bend 15 shapes with bellows blast orifice II 12 positions, corresponding turning, and described flow deflector 14 is fixedly installed in two side panel 16 of bellows 2.
Multiple flow deflectors 14 intervals evenly, be arranged in parallel.In present embodiment, flow deflector 14 is also parallel with blower fan end arc bent plate 11.
Described flow deflector 14 can be only one.Flow deflector 14 can be also other shape such as being dull and stereotyped, and each interval can be also inhomogeneous, even uneven also passable.Such as flat board forms square or leg-of-mutton gas channel each other.
Also can adopt the bend pipe the same with end arc bent plate 11 radians that is arranged on air channel corner, carry out the guiding device of water conservancy diversion as the air-flow in bellows 2.In a word, be located in bellows 2 as long as can be to the mobile effect of playing guiding and shunting of gas, within the scope all comprising in this design.
The structure of bellows can be also the structure of any applicable installation guiding device in prior art.
Bellows blast orifice is at least one, is not restricted to two.
Guiding device also can be located at arbitrary suitable position in the passage of gas communication in bellows.The structure of the structure of guiding device and shape and this correct position matches.
As Figure 6-Figure 8, the convection current case cover 5 of the present embodiment comprises a gathering portion with diffusion part and a rectangular cross section of trapezoidal transverse face, diffusion part is connected at the large end of diffusion part with gathering portion, the small end face of diffusion part is provided with two blast inlets corresponding with bellows blast orifice I 4 and bellows blast orifice II 12 difference, in convection current case cover 5, the position of corresponding each blast inlet is equipped with the part flow arrangement that the air-flow to entering in convection current case cover 5 is shunted and led.Part flow arrangement is further arranged and is formed by one or more dividing plates 15 intervals.
The present embodiment part flow arrangement is arranged and is formed by multiple dividing plates 15 intervals, the corresponding multiple dividing plates 15 of each blast inlet are all symmetricly set on the both sides of blast inlet medullary ray separately along the direction consistent with glass sheets direction, and be fixed on convection current case cover 5 inwall on.
Part flow arrangement is shunted and is guided blowing to the gas of sheet glass 7, thereby make originally disorderly blow to disorderly sheet glass 7 surfaces air-flow disperse to the both sides of glass width in an orderly manner, the pressure size of air-flow is also more balanced, thereby be more conducive to realize the homogeneous heating of sheet glass 7, and then improve the final product quality of toughened glass.
In order further to make air-flow more equably to the width diffusion of sheet glass 7, described dividing plate all tilts towards convection current case cover blast inlet, and the angle between adjacent dividing plate can equate, also can be unequal, preferably equate.
Dividing plate 15 can be dull and stereotyped, can be also the flat board of one end bending, as shown in Figure 9; Can also be the bent plate of entirety for arc.
Convection current case cover 5 also can entirety become large divergent contour for being cross section along convection current case cover 5 interior air flow lines gradually.
Like this, in the time that blower fan 1 is worked, gas in bellows 2 is by the guiding device in bellows 2, blow to convection current case cover 5 through bellows blast orifice, by be located at the part flow arrangement in convection current case cover 5 shunting and guiding after flow to well heater I 11, after being heated by well heater I 11, gas blows to the surface of the sheet glass 7 being placed on glass sheets roller-way 10 through the wind hole 6 of convection current case cover, carry out after heat exchange with sheet glass 7, air-flow is to the diffuse outside of convection current case cover 5, via wall 301, the process furnace inner chamber path of navigation that training wall 302 and the wall 303 that confluxes the form air-intaking box blast inlet 13 of turning back, to strengthen the speed of circulation of the air-flow of convection current in process furnace, realize the high-temperature gas of upper furnace body or lower furnace body to the convection current homogeneous heating of sheet glass 7.
Claims (10)
1. the process furnace of a sheet glass, comprise frame (9) and be arranged on upper furnace body (3) and the lower furnace body (8) in frame (9), glass sheets roller-way (10) is horizontally set between upper furnace body (3) and lower furnace body (8), it is characterized in that: the inwall of upper furnace body (3) is by wall (301), training wall (302) and the wall that confluxes (303) form, wall (301), training wall (302) and the wall that confluxes (303) are connected to form the inner chamber of upper furnace body (3) in turn, be provided with blower fan (1) in the outside of the wall that confluxes (303), inner side at the wall that confluxes (303) is provided with bellows, one end of bellows is connected with blower fan, the bellows the other end is provided with convection current case cover (5), in bellows, be provided with the blast orifice that at least one is communicated to convection current case cover (5), convection current case cover (5) is relative with the rollgang (10) of sheet glass, on the inner airflow circulation loop of convection current case cover (5), be provided with well heater (11), lower furnace body (8) adopts radiant heating structure, to realize the fast lifting of sheet glass upper surface temperature.
2. the process furnace of a kind of sheet glass according to claim 1, is characterized in that: described training wall (302) is connected and composed in turn by the plane of one or more snippets inclination.
3. the process furnace of a kind of sheet glass according to claim 1, is characterized in that: described training wall (302) is connected and composed in turn by one or more snippets arc surface.
4. the process furnace of a kind of sheet glass according to claim 1, is characterized in that: described wall (301) and/or the wall that confluxes (303) are plane or arc surface.
5. the process furnace of a kind of sheet glass according to claim 1, is characterized in that: described bellows, its inside is provided with the guiding device that air-flow is led.
6. the process furnace of a kind of sheet glass according to claim 5, is characterized in that: described guiding device is made up of one or more flow deflector (14).
7. according to the process furnace of a kind of sheet glass described in claim 1-6 any one, it is characterized in that: described convection current case cover (5), its inside is provided with the part flow arrangement of diffusing air current.
8. the process furnace of a kind of sheet glass according to claim 7, is characterized in that: described part flow arrangement is made up of one or more dividing plate (15), and described multiple dividing plates (15) are symmetricly set on the both sides of bellows blast orifice medullary ray.
9. according to the process furnace of a kind of sheet glass described in claim 1-6 any one, it is characterized in that: described bellows are provided with two blast orifices.
10. according to the process furnace of a kind of sheet glass described in claim 1-6 any one, it is characterized in that: described convection current case cover (5) is cross section along the interior air flow line of convection current case cover (5) and becomes gradually large divergent contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144537.5A CN103951174B (en) | 2014-04-11 | 2014-04-11 | A kind of heating furnace of glass plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144537.5A CN103951174B (en) | 2014-04-11 | 2014-04-11 | A kind of heating furnace of glass plate |
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| Publication Number | Publication Date |
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| CN103951174A true CN103951174A (en) | 2014-07-30 |
| CN103951174B CN103951174B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410144537.5A Active CN103951174B (en) | 2014-04-11 | 2014-04-11 | A kind of heating furnace of glass plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986528A (en) * | 2017-05-04 | 2017-07-28 | 绥中远图科技发展有限公司 | A kind of glass tempering furnace convection heating system |
| CN108567389A (en) * | 2018-07-17 | 2018-09-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Water cup module and dish-washing machine |
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| CN1543443A (en) * | 2001-07-11 | 2004-11-03 | Method for conducting heat to a glass sheet | |
| CN201557540U (en) * | 2009-09-18 | 2010-08-25 | 冯星愿 | Uniform-heating pre-drying machine |
| CN201567292U (en) * | 2009-10-10 | 2010-09-01 | 山东华兴玻璃技术有限公司 | Heating device for annealing furnace |
| CN103449712A (en) * | 2013-08-14 | 2013-12-18 | 浙江鼎玻自动化设备有限公司 | Convection glass toughening furnace of barrier-free strong-radiation air blower |
| CN103449713A (en) * | 2013-08-14 | 2013-12-18 | 浙江鼎玻自动化设备有限公司 | Jet-flow glass toughening furnace of barrier-free strong-radiation air source |
| CN203820635U (en) * | 2014-04-11 | 2014-09-10 | 洛阳兰迪玻璃机器股份有限公司 | Glass plate heating furnace |
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2014
- 2014-04-11 CN CN201410144537.5A patent/CN103951174B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543443A (en) * | 2001-07-11 | 2004-11-03 | Method for conducting heat to a glass sheet | |
| CN201557540U (en) * | 2009-09-18 | 2010-08-25 | 冯星愿 | Uniform-heating pre-drying machine |
| CN201567292U (en) * | 2009-10-10 | 2010-09-01 | 山东华兴玻璃技术有限公司 | Heating device for annealing furnace |
| CN103449712A (en) * | 2013-08-14 | 2013-12-18 | 浙江鼎玻自动化设备有限公司 | Convection glass toughening furnace of barrier-free strong-radiation air blower |
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| CN203820635U (en) * | 2014-04-11 | 2014-09-10 | 洛阳兰迪玻璃机器股份有限公司 | Glass plate heating furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986528A (en) * | 2017-05-04 | 2017-07-28 | 绥中远图科技发展有限公司 | A kind of glass tempering furnace convection heating system |
| CN108567389A (en) * | 2018-07-17 | 2018-09-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Water cup module and dish-washing machine |
| CN108567389B (en) * | 2018-07-17 | 2023-11-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Drinking cup subassembly and dish washer |
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| CN103951174B (en) | 2016-05-18 |
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