CN103951176A - Heating furnace capable of rapidly heating glass plates - Google Patents
Heating furnace capable of rapidly heating glass plates Download PDFInfo
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- CN103951176A CN103951176A CN201410144631.0A CN201410144631A CN103951176A CN 103951176 A CN103951176 A CN 103951176A CN 201410144631 A CN201410144631 A CN 201410144631A CN 103951176 A CN103951176 A CN 103951176A
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- process furnace
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 239000011521 glass Substances 0.000 title claims abstract description 20
- 230000001360 synchronised Effects 0.000 claims abstract description 4
- 239000005357 flat glass Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 28
- 230000000875 corresponding Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
A heating furnace capable of rapidly heating glass plates comprises a frame, and an upper furnace body and a lower furnace body forming a heating furnace body; a glass plate conveying roll table is arranged between the upper furnace body and the lower furnace body; the upper furnace body and/or the lower furnace body are respectively composed of a vertical wall, a diversion wall and a conflux wall; 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 inside or outside of the convection bellows cover is provided with a heater for realizing up-and-down synchronous convection heating of glass plates; and the bellows and the convection bellows cover are respectively inside provided with a flow-guiding device for guiding air flow and a flow-splitting device for splitting air flow. By employing the heating furnace for rapidly heating glass plates, under the circumstance without improving power of the draught fan, the convection heating efficiency 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 rapid heating 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, there is eddy current in high-temperature gas easy corner at adjacent wall in the process of convection current, 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, during gas flow, pressure loss is large, in air channel, each 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 rapid heating 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 rapid heating sheet glass, comprise frame, the heating furnace body being arranged in frame consists of upper furnace body and lower furnace body, and form the inner chamber of process furnace, glass sheets roller-way is horizontally set between upper furnace body and lower furnace body, both sides up and down at rollgang are respectively equipped with well heater, the inwall of upper furnace body and/or lower furnace body is respectively by wall, training wall and the wall that confluxes form, wall, training wall is connected in turn with the wall that confluxes, 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, on bellows, be at least provided with a blast orifice being communicated in convection current case cover, convection current case cover is relative with the rollgang of sheet glass, described well heater is arranged on the inside of convection current case cover or the airflow circulation loop of outside, to realize the synchronous convective heating up and down to sheet glass.
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 consists 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 consists of one or more dividing plate, and described a plurality of 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 and becomes gradually large divergent contour.
The invention has the beneficial effects as follows:
1, wall, training wall and the wall that confluxes are connected to form process furnace inner chamber in turn, can make gas more unobstructed in convection circulation, eliminated the mobile eddy current problem of furnace chamber internal gas of the prior art, reduced 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, solved 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 guarantee 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.
Accompanying drawing explanation
Fig. 1 is the first example structure schematic diagram of the present invention.
Fig. 2 is the second example structure schematic diagram of the present invention.
Fig. 3 is the third example structure schematic diagram of the present invention.
Fig. 4 is the C-C view of Fig. 1.
Fig. 5 is the part sectioned view of bellows in Fig. 1.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the partial enlarged drawing of convection current case cover in Fig. 1.
Fig. 8 is the A-A view of Fig. 7.
Fig. 9 is the B-B view of Fig. 8.
Figure 10 is the another kind of embodiment figure of Fig. 9 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, 12, bellows blast orifice II, 13, bellows blast inlet, 14, flow deflector, 15, bellows end arc, 16, bellows side panel, 17, dividing plate.
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 rapid heating sheet glass, comprise frame 9, heating furnace body consists 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, upper furnace body 3 and lower furnace body 8 are respectively 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 process furnace, 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 2, one end of bellows 2 is connected with blower fan 1, bellows 2 the other ends are provided with convection current case cover 5, bellows 2 are communicated to convection current case cover 5 by bellows blast orifice I and bellows blast orifice II, convection current case cover 5 is relative with glass sheets roller-way 10, convection current case cover 5 is provided with wind hole 6 facing to a side of glass sheets roller-way 10, in convection current case cover 5 inside, be provided with well heater 11.Well heater 11 also can be located on the airflow circulation loop of convection current case cover 5 outsides.
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, as shown in Figure 3; Can also be one section of arc surface, as shown in Figure 1; Or multi-section circular arc face connects and composes in turn.
Upper furnace body 3 and lower furnace body 8 also can only have upper furnace body 3 or only have lower furnace body 8 to adopt the structure of training wall, for upper furnace body 3 and lower furnace body 8, all adopt the situation of training wall, training wall can adopt different structures, such as upper furnace body 3 adopts one section of tilting plane, lower furnace body 8 adopts the structure of cambered surface; The present invention does not limit the shape of body of heater shell in addition, no matter process furnace inwall is any structure, the shell of body of heater can be identical with furnace chamber inner wall shape, can be different with furnace chamber inner wall shape yet.
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 ∧ shape for arc surface or cross section.
As shown in Figure 5 and Figure 6, bellows 2 in the process furnace that the present embodiment adopts comprise two parallel side panel 16 and two end arc bent plates 15 that side panel 16 connected and composed to 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 a plurality of flow deflectors 14 identical with bellows end arc bent plate 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.
A plurality of 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 also can only arrange one according to practical situation, and 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, as the air-flow in bellows 2, carry out the guiding device of water conservancy diversion.In a word, be located in bellows 2 so long as the mobile effect of playing guiding and shunting that can be to 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 shown in Fig. 7-Fig. 9, 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 17 intervals.
Described convection current case cover 5 also can be whole for to become gradually large divergent contour along gas flow direction cross section.
The corresponding dividing plate 17 of each blast inlet is all symmetricly set on the both sides of blast inlet air port 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 to the both sides of glass width, disperse 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 17 can be dull and stereotyped, and bent plate that also can one end bending, as shown in figure 10, can also be that integral body is the bent plate of arc.
Like this, when blower fan 1 work, gas in bellows 2 is by the guiding device in bellows 2, through bellows blast orifice, blow to convection current case cover 5, by be located at the part flow arrangement in convection current case cover 5 shunting and guiding after flow to well heater 11, after well heater 11 heating, 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 synchronous convection current homogeneous heating of high-temperature gas to sheet glass 7.
Claims (10)
1. the process furnace of a rapid heating sheet glass, comprise frame (9), the heating furnace body being arranged in frame (9) consists of upper furnace body (3) and lower furnace body (8), and form the inner chamber of process furnace, glass sheets roller-way (10) is horizontally set between upper furnace body (3) and lower furnace body (8), in the both sides up and down of rollgang (10), be respectively equipped with well heater (11), it is characterized in that: the inwall of upper furnace body (3) and/or lower furnace body (8) is respectively by wall (301), training wall (302) and the wall that confluxes (303) form, wall (301), training wall (302) is connected in turn with the wall that confluxes (303), in the outside of the wall that confluxes (303), be provided with blower fan (1), 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), on bellows, be at least provided with a blast orifice being communicated in convection current case cover (5), convection current case cover (5) is relative with the rollgang (10) of sheet glass, described well heater (11) is arranged on the inside of convection current case cover (5) or the airflow circulation loop of outside, to realize the synchronous convective heating up and down to sheet glass.
2. the process furnace of a kind of rapid heating 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 rapid heating 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 rapid heating 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 rapid heating 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 rapid heating sheet glass according to claim 5, is characterized in that: described guiding device consists of one or more flow deflector (14).
7. according to the process furnace of a kind of rapid heating 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 rapid heating sheet glass according to claim 7, is characterized in that: described part flow arrangement consists of one or more dividing plate (17), and described a plurality of dividing plates (17) are symmetricly set on the both sides of bellows blast orifice medullary ray.
9. according to the process furnace of a kind of rapid heating 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 rapid heating sheet glass described in claim 1-6 any one, it is characterized in that: described convection current case cover (5) is cross section along air flow line and becomes gradually large divergent contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144631.0A CN103951176B (en) | 2014-04-11 | 2014-04-11 | The process furnace of a kind of rapid heating sheet glass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410144631.0A CN103951176B (en) | 2014-04-11 | 2014-04-11 | The process furnace of a kind of rapid heating sheet glass |
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| CN103951176A true CN103951176A (en) | 2014-07-30 |
| CN103951176B CN103951176B (en) | 2016-06-15 |
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| CN103396005A (en) * | 2013-08-15 | 2013-11-20 | 蚌埠玻璃工业设计研究院 | Gas uniform distributor used for coating films on sheet glass |
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2014
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Patent Citations (11)
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|---|---|---|---|---|
| US5094678A (en) * | 1990-01-29 | 1992-03-10 | Wsp Ingenieurgesellschaft Fur Warmetechnik, Stromungstechnik U Prozesstechnik Mit Beschrankter Haftung | High-convection gas jet nozzle section for sheet-like material guided over rolls and method of using same |
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| CN103951176B (en) | 2016-06-15 |
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Denomination of invention: Heating furnace capable of rapidly heating glass plates Effective date of registration: 20180308 Granted publication date: 20160615 Pledgee: Bank of China Limited by Share Ltd. Luoyang Taiyuan South Road Branch Pledgor: LUOYANG LANDGLASS TECHNOLOGY Co.,Ltd. Registration number: 2018410000006 |
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Date of cancellation: 20201112 Granted publication date: 20160615 Pledgee: Bank of China Limited by Share Ltd. Luoyang Taiyuan South Road Branch Pledgor: LUOYANG LANDGLASS TECHNOLOGY Co.,Ltd. Registration number: 2018410000006 |
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Denomination of invention: A heating furnace for fast heating glass plate Effective date of registration: 20201116 Granted publication date: 20160615 Pledgee: Bank of China Limited by Share Ltd. Luoyang Taiyuan South Road Branch Pledgor: LUOYANG LANDGLASS TECHNOLOGY Co.,Ltd. Registration number: Y2020980008039 |
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Date of cancellation: 20220630 Granted publication date: 20160615 Pledgee: Bank of China Limited by Share Ltd. Luoyang Taiyuan South Road Branch Pledgor: LUOYANG LANDGLASS TECHNOLOGY Co.,Ltd. Registration number: Y2020980008039 |
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