CN212315922U - Glass tempering furnace convection heating structure and glass tempering furnace - Google Patents
Glass tempering furnace convection heating structure and glass tempering furnace Download PDFInfo
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- CN212315922U CN212315922U CN202020940826.7U CN202020940826U CN212315922U CN 212315922 U CN212315922 U CN 212315922U CN 202020940826 U CN202020940826 U CN 202020940826U CN 212315922 U CN212315922 U CN 212315922U
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Abstract
The utility model discloses a convection heating structure of a glass tempering furnace and the glass tempering furnace, which comprises a nozzle air plate and convection nozzles arranged on the nozzle air plate, wherein the longitudinal section of the nozzle air plate is parallelogram or wave shape, when the longitudinal section of the nozzle air plate is wave shape, the wave crest of the nozzle air plate is provided with a plurality of convection nozzles, and the distance between the plurality of wave crests of the nozzle air plate and glass to be heated is consistent; the convection nozzle on at least one wave crest is a slit type air outlet; the utility model discloses an adopt slot formula convection current nozzle, improved the heating effect, reduce the inhomogeneous phenomenon of wind spot and stress on the toughened glass.
Description
Technical Field
The utility model belongs to the technical field of glass tempering furnace heating technique and specifically relates to a glass tempering furnace convection heating structure and glass tempering furnace.
Background
In the prior art, a glass tempering furnace is needed for producing tempered glass, and a generally adopted production method is that the glass tempering furnace heats and then carries out quenching treatment on plate glass, so that cooled glass is changed due to internal stress, and the strength of the glass is improved. The convection heater is required to be used for heating toughened glass in the prior art, the convection device nozzles in the prior art are all circular holes, such as plane holes, conical holes, straight nozzle holes and the like, the interface form of the convection device nozzles is composed of regularly distributed small circular holes, the heating effect of the nozzles in the form is good, but the nozzles are in point-shaped distribution heating in the glass heating process, the whole page of the glass cannot be covered and heated, the heating uniformity is poor, the stress and the wind spots of the toughened glass are influenced, along with the development of the industry, the quality requirements of customers on the glass are higher and higher, and the conventional wind holes cannot meet the market requirements. Therefore, how to stabilize the wind pressure sprayed by the convection heating structure and how to heat the glass more uniformly becomes a problem to be solved urgently.
And how to further improve the air-blowing tempering effect of the glass in the whole continuous tempering process of the glass through heating and air-blowing cooling, which is also a problem concerned by the industry.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims to provide a glass tempering furnace convection heating structure through adopting slot formula convection current nozzle, has improved the heating effect, reduces the last wind spot of toughened glass and the inhomogeneous phenomenon of stress.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a convection heating structure of a glass tempering furnace comprises a nozzle air plate and convection nozzles arranged on the nozzle air plate, wherein the longitudinal section of the nozzle air plate is parallelogram or wave-shaped, when the longitudinal section of the nozzle air plate is wave-shaped, a plurality of convection nozzles are arranged at the wave crests of the nozzle air plate, and the distances from the wave crests of the nozzle air plate to glass to be heated are consistent; the convection nozzle on at least one wave crest is a slit type air outlet. Each cooling nozzle corresponds to one air outlet.
Furthermore, the nozzle air plate also comprises a reinforcing rib plate arranged on the nozzle air plate, and the reinforcing rib plate is connected with the nozzle air plate.
Further, the wave shape is any wave with wave crests on the same straight line.
Furthermore, the slit type air outlet is a linear long strip air outlet extending along the direction vertical to the glass conveying direction, and the length of the linear long strip air outlet is matched with that of the air grid. The matching relationship is that the length of the air outlet is slightly smaller than that of the air grid, so that the structural strength is ensured, and the length of the slit air outlet is larger than the width of the maximum glass which can be accommodated by the existing air grid.
Furthermore, the gap type air outlet is a linear strip-shaped air outlet extending along the direction vertical to the glass conveying direction, and a plurality of gap type air outlets are arranged in a row along the direction vertical to the glass conveying direction; the plurality of slit type air outlets are at least two rows which are parallel to each other, and the slit type air outlets in two adjacent rows are arranged in a staggered way; the length of each row is matched with the length of the air grid. The matching relation is that the length of each row is slightly smaller than that of the air grid, so that the structural strength is ensured, and the length of each row is larger than the width of the maximum glass which can be accommodated by the existing air grid.
Furthermore, the gap type air outlets are obliquely arranged strip-shaped air outlets, and a plurality of the gap type air outlets are arranged in parallel along the direction perpendicular to the glass conveying direction.
Furthermore, the projections of the two adjacent strip-shaped slit type air outlets in the arrangement direction are connected end to end.
Furthermore, the gap type air outlet is a continuous wave-shaped strip-shaped air outlet.
The utility model also provides a technical scheme, as follows:
a convection heating structure of a glass tempering furnace comprises convection air pipes and convection nozzles arranged on the convection air pipes, wherein a plurality of convection air pipes are arranged along the conveying direction of glass, and the bottom of each convection air pipe is provided with a plurality of convection nozzles; the convection nozzle on at least one convection air pipe is a gap type air outlet.
The utility model discloses in a glass tempering furnace convection heating structure, change slot formula air outlet shape into by original round hole formula through the shape with convection current nozzle, when toughened glass carries out the convection heating, the wind that the convection current fan blew off blows at toughened glass's by convection current nozzle again on the surface, the hot gas flow that blows off from slot formula air outlet can all heat toughened glass's whole surface along the in-process of roll table transmission at toughened glass, and the convection current nozzle of round hole formula among the prior art is in toughened glass motion process, there is not the hot gas flow between the round hole, the surface that corresponds toughened glass forms rectangular form wind spot, influence toughened glass's pleasing to the eye and quality. And the utility model discloses use slot formula air outlet, the hot gas flow that the convection current nozzle blew off sweeps the toughened glass surface completely, and the heating range reaches the maximize, has promoted the heating effect to toughened glass, avoids appearing banding wind spot and toughened glass stress and receives the influence.
The utility model also provides a technical scheme, as follows:
a glass tempering furnace comprises a plurality of convection heating devices, wherein each convection heating device comprises a convection fan, a convection heater and a convection heating structure of any glass tempering furnace.
Further, the convection heating structures in the plurality of group convection heating devices are the same.
Further, still include the cooling segment of blowing, the cooling nozzle of cooling segment of blowing is round hole formula air outlet.
Furthermore, a passing section is arranged in front of the air blowing cooling section, and the passing section comprises an air blowing structure provided with a slit type air outlet.
Further, the cooling device also comprises an air blowing cooling section, wherein at least one part of a cooling nozzle of the air blowing cooling section is a slit type air outlet.
Furthermore, the slit type air outlet is a linear strip air outlet which extends along the direction vertical to the glass conveying direction.
On the basis of improving the air blowing holes in the heating structure, at least part of the circular hole air outlets of the air blowing cooling section are changed into slit air outlets, and the air spots of the tempered glass are obviously improved through the integral design of the air outlets of the heating section and the cooling section.
Drawings
FIG. 1 is a schematic view of a glass heating structure of the present invention;
FIG. 2 is a longitudinal sectional view of a nozzle air plate according to the present invention;
FIG. 3 is a longitudinal sectional view of the nozzle air plate of the present invention;
FIG. 4 is another schematic structural view of the glass heating structure of the present invention;
FIG. 5 is a schematic view of a convection nozzle according to an embodiment of the present invention;
FIG. 6 is a schematic view of a two-fluid nozzle according to an embodiment of the present invention;
FIG. 7 is a schematic view of a three-convection nozzle according to an embodiment of the present invention;
fig. 8 is a schematic view of a four-convection nozzle according to an embodiment of the present invention;
fig. 9 is a schematic view of a five-convection nozzle according to an embodiment of the present invention;
FIG. 10 is a schematic view of the arrangement of the glass tempering furnace of the present invention;
fig. 11 is a schematic view of the air grid structure arranged inside the glass tempering furnace.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the examples of the present invention, and it is obvious that the described examples are only a part of examples of the present invention, and not all examples. Based on the middle examples of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
In the description of the present embodiment, the terms "inside", "outside", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish similar items and are not to be construed as requiring a particular order or sequence, and it is to be understood that such uses are interchangeable under appropriate circumstances.
To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.
A convection heating structure of a glass tempering furnace comprises a nozzle air plate and convection nozzles arranged on the nozzle air plate, wherein the longitudinal section of the nozzle air plate is parallelogram or wave-shaped, when the longitudinal section of the nozzle air plate is wave-shaped, a plurality of convection nozzles are arranged at the wave crests of the nozzle air plate, and the distances from the wave crests of the nozzle air plate to glass to be heated are consistent; the convection nozzle on at least one wave crest is a slit type air outlet.
A convection heating structure of a glass tempering furnace comprises convection air pipes and convection nozzles arranged on the convection air pipes, wherein a plurality of convection air pipes are arranged along the conveying direction of glass, and the bottom of each convection air pipe is provided with a plurality of convection nozzles; the convection nozzle on at least one convection air pipe is a gap type air outlet.
The utility model discloses in a glass tempering furnace convection heating structure, change slot formula air outlet shape into by original round hole formula through the shape with convection current nozzle, when toughened glass carries out the convection heating, the wind that the convection current fan blew off blows at toughened glass's by convection current nozzle again on the surface, the hot gas flow that blows off from slot formula air outlet can all heat toughened glass's whole surface along the in-process of roll table transmission at toughened glass, and the convection current nozzle of round hole formula among the prior art is in toughened glass motion process, there is not the hot gas flow between the round hole, the surface that corresponds toughened glass forms rectangular form wind spot, influence toughened glass's pleasing to the eye and quality. And the utility model discloses use slot formula air outlet, the hot gas flow that the convection current nozzle blew off sweeps the toughened glass surface completely, and the heating range reaches the maximize, has promoted the heating effect to toughened glass, avoids appearing banding wind spot and toughened glass stress and receives the influence.
Example one
As shown in fig. 1, fig. 2 and fig. 6, the convection heating structure of a glass tempering furnace of the present invention comprises a nozzle air plate 1 and a reinforcing rib plate 4 arranged on the nozzle air plate 1, wherein the longitudinal section of the nozzle air plate 1 is wave-shaped, a convection nozzle 2 is arranged at the peak of the nozzle air plate 1, a return air channel 3 is arranged at the valley of the nozzle air plate 1, and the distance from the plurality of peaks of the nozzle air plate 1 to the glass to be heated is consistent; wherein, the convection nozzle on each wave crest is a slit type air outlet. The gap type air outlet is a linear strip-shaped air outlet extending along the direction vertical to the glass conveying direction, and a plurality of gap type air outlets are arranged in a row along the direction vertical to the glass conveying direction; two rows of the plurality of the slit type air outlets are parallel to each other, and the slit type air outlets in the two adjacent rows are arranged in a staggered manner; the length of each row is matched with the length of the air grid.
In the above example, as shown in fig. 1, a plurality of pairs of convection heating devices are arranged in the glass tempering furnace, wherein the convection heating devices include a convection fan 5, a convection heater 6 and a convection heating structure, the convection fan 5 is arranged at the top of the glass tempering furnace, the convection heater 6 is arranged below the convection fan 5, one end of the convection heater 6 is communicated with the convection fan 5, the other end is provided with the convection heating structure below, the bottom of the convection heating structure is a nozzle air plate 1, and a side wall is circumferentially arranged to fix the convection heating structure below the convection heater 6. The ceramic roller way 7 is arranged below the convection heating structure, and in the working process, tempered glass is placed on the ceramic roller way 7 to enter from one end of the glass tempering furnace, is heated by a plurality of groups of convection heating devices, and then enters the next procedure. Be provided with deep floor 4 on nozzle aerofoil 1, the structural strength of nozzle aerofoil 1 has been promoted, in actual production, during the processing large-scale toughened glass, the length of convection current nozzle is corresponding to increase substantially, consequently the structural strength of nozzle aerofoil 1 self has very big influence to nozzle wind pressure, deep floor 4's setting can prevent that nozzle aerofoil 1 from taking place deformation in the use, self, influences the shape of slot formula air outlet, finally influences the heating range of convection current nozzle to toughened glass.
In the above example, each wave crest of the nozzle air plate 1 is provided with a plurality of convection nozzles, projections of two rows of long slit type air outlets of the convection nozzles in the arrangement direction are an uninterrupted straight line, and the length of each row is matched with the length of the air grid. The hot air flow blown out from the two rows of slit type air outlets is blown to the surface of the toughened glass, the toughened glass moves along the ceramic roller way, the two rows of hot air flows are complementary, the surface of the toughened glass is completely heated, no omission exists, and the generation of wind spots is avoided.
In the embodiment, the shape of the convection nozzle is changed from the original circular hole type to the shape of the slit type air outlet, when the toughened glass is heated in a convection mode, air blown out from the convection fan passes through the convection heater and then is blown onto the surface of the toughened glass by the convection nozzle, the whole surface of the toughened glass can be heated by hot air blown out from the slit type air outlet in the process that the toughened glass is transmitted along the roller way, and in the prior art, the circular hole type convection nozzle does not have the hot air flow between the circular holes in the movement process of the toughened glass, and strip-shaped wind spots are formed on the surface of the toughened glass correspondingly, so that the attractiveness and quality of the toughened glass are affected. And the utility model discloses use slot formula air outlet, the hot gas flow that the convection current nozzle blew off sweeps the toughened glass surface completely, and the heating range reaches the maximize, has promoted the heating effect to toughened glass, avoids appearing banding wind spot and toughened glass stress and receives the influence.
Example two
As shown in fig. 1, fig. 3, fig. 5, the utility model relates to a convection heating structure of glass tempering furnace, be in including nozzle aerofoil 1 and setting deep floor 4 on the nozzle aerofoil 1, nozzle aerofoil 1 longitudinal section is the wave nozzle is provided with the convection current nozzle in the crest department of nozzle aerofoil 1, the trough department of nozzle aerofoil 1 is return air passageway 3, wherein, on at least one crest the convection current nozzle is slot formula air outlet. The convection nozzle 2 is a continuous linear strip slit type air outlet, and the length of the linear strip air outlet is matched with that of the air grid.
The same wave crest can also comprise 2 or more than 2 continuous linear strip slit type air outlets which are arranged in parallel, and the length of the linear strip air outlet is matched with that of the air grid.
In the above example, as shown in fig. 1, a plurality of pairs of convection heating devices are arranged in the glass tempering furnace, wherein the convection heating devices include a convection fan 5, a convection heater 6 and a convection heating structure, the convection fan 5 is arranged at the top of the glass tempering furnace, the convection heater 6 is arranged below the convection fan 5, one end of the convection heater 6 is communicated with the convection fan 5, the other end is provided with the convection heating structure below, the bottom of the convection heating structure is a nozzle air plate 1, and a side wall is circumferentially arranged to fix the convection heating structure below the convection heater 6. The ceramic roller way 7 is arranged below the convection heating structure, and in the working process, tempered glass is placed on the ceramic roller way 7 to enter from one end of the glass tempering furnace, is heated by a plurality of groups of convection heating devices, and then enters the next procedure. Be provided with deep floor 4 on the nozzle aerofoil, promoted nozzle aerofoil 1's structural strength, in actual production, during the large-scale toughened glass of processing, the length of convection current nozzle is corresponding increases substantially, consequently nozzle aerofoil 1 self structural strength has very big influence to nozzle wind pressure, deep floor 4's setting can prevent that nozzle aerofoil 1 from taking place deformation in the use, self, influences the shape of slot formula air outlet, finally influences the heating range of convection current nozzle to toughened glass.
The convection current nozzle is a continuous linear strip slit type air outlet, the length of the linear strip air outlet is matched with the length of the air grid, when the toughened glass is subjected to convection heating, air blown out by the convection fan passes through the convection heater and is blown onto the surface of the toughened glass by the convection current nozzle, the surface of the toughened glass is completely heated, no omission exists, and wind spots are avoided.
EXAMPLE III
As shown in fig. 1, fig. 2 and fig. 8, the utility model relates to a convection heating structure of glass tempering furnace, be in including nozzle aerofoil 1 and setting deep floor 4 on the nozzle aerofoil 1, nozzle aerofoil 1 longitudinal section is the wave the crest department of nozzle aerofoil is provided with the convection current nozzle, the trough department of nozzle aerofoil 1 is return air passageway 3, wherein, on at least one crest the convection current nozzle is slot formula air outlet.
The gap type air outlet is a strip-shaped air outlet which is obliquely arranged, and a plurality of gap type air outlets are arranged in parallel along the direction vertical to the glass conveying direction.
In the above example, as shown in fig. 1, a plurality of pairs of convection heating devices are arranged in the glass tempering furnace, wherein the convection heating devices include a convection fan 5, a convection heater 6 and a convection heating structure, the convection fan 5 is arranged at the top of the glass tempering furnace, the convection heater 6 is arranged below the convection fan 5, one end of the convection heater 6 is communicated with the convection fan 5, the other end is provided with the convection heating structure below, the bottom of the convection heating structure is a nozzle air plate 1, and a side wall is circumferentially arranged to fix the convection heating structure below the convection heater 6. The ceramic roller way 7 is arranged below the convection heating structure, and in the working process, tempered glass is placed on the ceramic roller way 7 to enter from one end of the glass tempering furnace, is heated by a plurality of groups of convection heating devices, and then enters the next procedure. Be provided with deep floor 4 on nozzle aerofoil 1, the structural strength of nozzle aerofoil 1 has been promoted, in actual production, during the processing large-scale toughened glass, the length of convection current nozzle is corresponding to increase substantially, consequently the structural strength of nozzle aerofoil 1 self has very big influence to nozzle wind pressure, deep floor 4's setting can prevent that nozzle aerofoil 1 from taking place deformation in the use, self, influences the shape of slot formula air outlet, finally influences the heating range of convection current nozzle to toughened glass.
As shown in fig. 8, when the tempered glass is heated by convection, the plurality of obliquely arranged slit air outlets all blow out hot air, and the hot air blown out from the plurality of slit air outlets sweeps over the surface of the tempered glass along with the movement of the tempered glass along the ceramic roller way, so that the surface of the tempered glass is completely heated, the tempering quality of the glass is better, and the stress distribution of the glass is more uniform.
Example four
As shown in fig. 1, fig. 3, fig. 7, the utility model relates to a convection heating structure of glass tempering furnace, be in including nozzle aerofoil 1 and setting deep floor 4 on the nozzle aerofoil 1, nozzle aerofoil 1 longitudinal section is the wave nozzle is provided with the convection current nozzle in the crest department of nozzle aerofoil 1, the trough department of nozzle aerofoil 1 is return air passageway 3, wherein, on at least one crest the convection current nozzle is slot formula air outlet.
The gap type air outlet is a strip-shaped air outlet which is obliquely arranged, and a plurality of gap type air outlets are arranged in parallel along the direction vertical to the glass conveying direction.
The difference between the third embodiment and the second embodiment is that, as shown in fig. 7, two adjacent slit type air outlets of the plurality of obliquely arranged slit type air outlets in the arrangement direction of the plurality of obliquely arranged slit type air outlets are connected end to end, and the arrangement direction of the slit type air outlets is perpendicular to the traveling direction of the tempered glass when the tempered glass is heated in the glass tempering furnace.
In this embodiment, when hot-blast that two adjacent slant gap formula air outlets that set up blow off was swept on toughened glass surface, do not leave the strip wind spot between the hole similar to prior art on toughened glass, the convection current nozzle of this kind of shape can realize the comprehensive heating to glass surface, promotes glass tempering quality for glass stress distribution is more even.
EXAMPLE five
As shown in fig. 1, fig. 3, fig. 9, the utility model relates to a convection heating structure of glass tempering furnace, be in including nozzle aerofoil 1 and setting deep floor 4 on the nozzle aerofoil 1, nozzle aerofoil 1 longitudinal section is the wave nozzle is provided with the convection current nozzle in the crest department of nozzle aerofoil 1, the trough department of nozzle aerofoil 1 is return air passageway 3, wherein, on at least one crest the convection current nozzle is slot formula air outlet.
Different from the above embodiments, in this embodiment, a plurality of sets of the convection nozzles are arranged on the nozzle air plate 1 in each set of convection heating device, and each wave crest of the nozzle air plate 1 is provided with one convection nozzle, wherein the convection nozzle is composed of one continuous wave-shaped gap type air outlet.
When the hot-blast that the slot formula air outlet of wavy blew off was swept on toughened glass surface in this embodiment, do not leave the strip wind spot between the hole similar to prior art on toughened glass, the convection current nozzle of this kind of shape can realize promoting glass tempering quality to the comprehensive heating on glass surface for glass stress distribution is more even.
EXAMPLE six
The utility model relates to a convection heating structure of a glass tempering furnace, which comprises a nozzle air plate 1 and a convection nozzle arranged on the nozzle air plate 1, wherein the longitudinal section of the nozzle air plate is a parallelogram, and the nozzle air plate 1 is a flat plate; in this embodiment, the slit-type air outlet is a linear strip-shaped air outlet disposed on the nozzle air plate, the linear strip-shaped air outlet is perpendicular to the glass conveying direction, and a plurality of linear strip-shaped air outlets are arranged in parallel on the entire nozzle air plate.
Other parts of this embodiment are the same as those of the other embodiments described above, and thus are not described again.
EXAMPLE seven
As shown in fig. 1 and 4, a convection heating structure of a glass tempering furnace comprises convection air pipes 8 and convection nozzles 2 arranged on the convection air pipes 8, wherein a plurality of the convection air pipes 8 are arranged along the conveying direction of glass; the convection nozzle 2 on at least one convection air pipe 8 is a gap type air outlet, and the length of the projection is not less than the width of the glass, so that the air blown out from the gap type air outlet can completely cover the surface of the glass in the glass conveying process.
In the above example, three slit type air outlets are provided at the bottom end of the convection air duct 8, wherein the shape of the slit type air outlets on the convection nozzle 2 in this embodiment may be any one of the above embodiments and a combination of several ones, and these contents are all what those skilled in the art can perform on the premise of understanding the principles and essence of the present invention, and will not be described again.
In the above example, as shown in fig. 1, a plurality of pairs of convection heating devices are arranged in the glass tempering furnace, wherein the convection heating devices include a convection fan 5, a convection heater 6 and a convection heating structure, the convection fan 5 is arranged at the top of the glass tempering furnace, the convection heater 6 is arranged below the convection fan 5, one end of the convection heater 6 is communicated with the convection fan 5, and the convection heating structure is arranged below the other end. The convection air ducts 8 are arranged along the vertical glass conveying direction.
Example eight
As shown in fig. 1, a glass tempering furnace is provided with a plurality of convection heating devices inside, wherein the convection heating devices include a convection fan 5, a convection heater 6 and a convection heating structure, in this embodiment, the convection heating structures in the plurality of convection heating devices are the same, wherein the convection fan 5 is disposed at the top of the glass tempering furnace, the convection heater 6 is disposed below the convection fan 5, one end of the convection heater 6 is communicated with the convection fan 5, the other end is disposed below the convection heating structure, the bottom of the convection heating structure is a nozzle air plate 1, and a sidewall is circumferentially disposed to fix the convection heating structure below the convection heater 6. The ceramic roller way 7 is arranged below the convection heating structure, and in the working process, tempered glass is placed on the ceramic roller way 7 to enter from one end of the glass tempering furnace, is heated by a plurality of groups of convection heating devices, and then enters the next procedure.
As shown in fig. 10 and 11, the glass tempering furnace includes a heating section 9, a passing section 10, and a blast cooling section 11. Wherein, the heating section 9 is provided with a convection heater 6 and a convection heating structure, and the nozzle air plate 1 or the convection air pipe 8 is arranged at the heating section 9; all be provided with the air grid structure shown in fig. 11 on section 10 and the cooling section of blowing 11, glass passes through the heating process of heating section 9 after, passes through section 10 and cooling section of blowing 11 in proper order, is used for cooling off glass rapidly through section 10, and cooling section of blowing 11 is used for slowly cooling glass, and glass's temperature reduces gradually, makes glass tempering.
In the above example, the cooling nozzle of the blowing cooling section 11 is a circular hole type air outlet, and the pass-through section 10 is provided with a slit type air outlet. Or the cooling nozzle part of the blowing cooling section 11 is a round hole type air outlet, part of the cooling nozzle part is a slit type air outlet, and the passing section 10 is provided with the slit type air outlet. Alternatively, the passage section 10 can be eliminated in practical use, and the glass can be cooled by blowing only through the blowing cooling section 11, in which case the cooling nozzle shape of the blowing cooling section 11 can be round hole type or slit type. The wind spots of the tempered glass are obviously improved through the integral design of the air outlets of the heating section 9 and the cooling section. Other combinations can be made by those skilled in the art based on their basic skills based on an understanding of the inventive concepts. In the above example, the slit outlets are one or more linear strip outlets arranged in parallel and extending perpendicular to the glass conveying direction.
It is noted that some of the structures may be selected differently than the specific examples given above. For example, the shape of the longitudinal section of the nozzle vane may have other types of shapes than those shown in fig. 2 and 3; and the like. These are all made by those skilled in the art based on their basic skills based on understanding the idea of the present invention, and are not illustrated herein.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.
Claims (14)
1. The convection heating structure of the glass tempering furnace is characterized by comprising a nozzle air plate and convection nozzles arranged on the nozzle air plate, wherein the longitudinal section of the nozzle air plate is parallelogram or wave-shaped, when the longitudinal section of the nozzle air plate is wave-shaped, a plurality of convection nozzles are arranged at wave crests of the nozzle air plate, and the distance between the wave crests of the nozzle air plate and glass to be heated is consistent; the convection nozzle on at least one wave crest is a slit type air outlet.
2. The convection heating structure of a glass tempering furnace according to claim 1, wherein a reinforcing rib plate is further arranged on the nozzle air plate, and the reinforcing rib plate is connected with the nozzle air plate.
3. The convection heating structure of a glass tempering furnace according to claim 1, wherein said wave shape is an arbitrary wave having peaks on the same straight line.
4. The convection heating structure of the glass tempering furnace is characterized by comprising convection air pipes and convection nozzles arranged on the convection air pipes, wherein the convection air pipes are distributed along the conveying direction of glass, and the bottom of each convection air pipe is provided with a plurality of convection nozzles; the convection nozzle on at least one convection air pipe is a gap type air outlet.
5. The convection heating structure of a glass tempering furnace according to any of claims 1 or 4, wherein said slit type air outlet is a linear strip air outlet extending in a direction perpendicular to a glass conveying direction, and a length of said linear strip air outlet matches a length of said air grid.
6. The convection heating structure of a glass tempering furnace according to any of claims 1 or 4, wherein said slit type air outlet is a linear strip air outlet extending in a direction perpendicular to a glass conveying direction, and a plurality of said slit type air outlets are arranged in a row in a direction perpendicular to the glass conveying direction; the plurality of slit type air outlets are at least two rows which are parallel to each other, and the slit type air outlets in two adjacent rows are arranged in a staggered way; the length of each row is matched with the length of the air grid.
7. The convection heating structure of a glass tempering furnace according to any of claims 1 or 4, wherein said slit type air outlets are obliquely arranged strip-shaped air outlets, and a plurality of said slit type air outlets are arranged in parallel in a direction perpendicular to a glass conveying direction.
8. The convection heating structure of a glass tempering furnace according to any of claims 1 or 4, wherein said slit type air outlet is a continuous wave-shaped strip air outlet.
9. A glass tempering furnace, characterized by comprising a plurality of pairs of convection heating devices, wherein the convection heating devices comprise a convection fan, a convection heater and the convection heating structure of the glass tempering furnace according to any one of claims 1 to 8.
10. The glass tempering furnace of claim 9, wherein said convection heating configurations in said plurality of convection heating apparatuses are identical.
11. The glass tempering furnace of claim 9, further comprising an air-blowing cooling section, wherein the cooling nozzles of said air-blowing cooling section are circular-hole type air outlets.
12. The glass tempering furnace of claim 11, wherein a pass through section is provided in front of said blast cooling section, said pass through section comprising a blast structure provided with a slit type air outlet.
13. The glass tempering furnace of claim 9, further comprising a forced air cooling section, wherein at least a portion of the cooling nozzles of said forced air cooling section are slotted air outlets.
14. The glass tempering furnace according to any one of claims 12 or 13, wherein said slotted vent is a linear strip vent extending perpendicular to a glass conveying direction.
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