CN212315925U - Graded static pressure air grid of glass tempering furnace - Google Patents
Graded static pressure air grid of glass tempering furnace Download PDFInfo
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- CN212315925U CN212315925U CN202020941823.5U CN202020941823U CN212315925U CN 212315925 U CN212315925 U CN 212315925U CN 202020941823 U CN202020941823 U CN 202020941823U CN 212315925 U CN212315925 U CN 212315925U
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Abstract
The utility model discloses a glass tempering furnace grading static pressure air grid, including air collecting box and a plurality of air grid unit, each air grid unit includes little bellows, cooling nozzle, blowing portion and voltage-sharing device, the blowing portion is equipped with the cavity, and little bellows is connected to one end, and the other end is provided with a plurality of the cooling nozzle, the voltage-sharing device sets up in little bellows and/or blowing portion and/or little bellows and between the blowing portion, the voltage-sharing device is orifice plate structure and/or minute wind guide plate, be provided with a plurality of ventilation holes on the orifice plate structure, the total area of ventilation hole of orifice plate structure is 1-12 times of the total area of the air outlet of cooling nozzle; the utility model discloses a set up album of bellows, little bellows and set up the voltage-sharing device between the portion of blowing of little bellows and cooling air grid, make finally make cooling nozzle spun wind pressure even more stable.
Description
Technical Field
The utility model belongs to the technical field of glass tempering furnace accessory technique and specifically relates to a hierarchical static pressure air grid of glass tempering furnace.
Background
In the prior art, a glass tempering furnace is required 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, the strength of the glass is improved, and a cooling air grid is usually used in the process of cooling the heated glass. The uniformity of air blowing of the air grid plays a crucial role in the quality of glass tempering processing, in order to ensure the uniformity as much as possible, the air inlet box of the cooling air grid of the existing glass tempering furnace adopts a side air inlet or middle air inlet mode, the air outlet of the air grid is uniform as much as possible through a mode that the cross section is gradually reduced, and the small air boxes in the prior art adopt structures with angles, so that the uniformity effect of the air pressure at two sides of the air grid is improved, but the air pressure at two ends of the air grid still has certain difference, thereby influencing the stress uniformity of glass in the tempering process and causing the formation of air spots on the surface of the tempered glass.
Therefore, how to ensure the uniformity and stability of the wind pressure sprayed by the air grid and the more uniform glass heating becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims to provide a hierarchical static pressure air grid of glass tempering furnace sets up the voltage-sharing device through the portion of blowing at little bellows and cooling air grid between, makes the wind pressure in the portion of blowing stable even.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a glass tempering furnace grading static pressure air grid, includes album of wind case, little bellows, cooling nozzle, blows wind portion and pressure-equalizing device, it is equipped with the cavity to blow the wind portion, and little bellows is connected to one end, and the other end is provided with a plurality of cooling nozzle, pressure-equalizing device set up in little bellows and/or in the portion of blowing and/or little bellows and between the portion of blowing, pressure-equalizing device is orifice plate structure and/or divides the wind guide plate, the cooling nozzle is round hole formula or slot type air outlet.
Further, the pore plate structure is a circular hole type pore plate or a slit type pore plate.
Furthermore, the number of the pore plate structures is one, and the total area of the vent holes of the pore plate structures is 1-12 times of the total area of the air outlets of the cooling nozzles. Preferably, the total area of the vent holes of the orifice plate structure is 3-7 times the total area of the air outlet of the cooling nozzle.
Furthermore, the pore plate structures are multiple and parallel to each other, and the total area of the vent holes of one pore plate structure closest to the cooling nozzle is 1-12 times of the total area of the air outlet of the cooling nozzle. Preferably, the total area of the vent holes of the orifice plate structure is 3-7 times the total area of the air outlet of the cooling nozzle.
Furthermore, the pore plate structure is a strip-shaped pore plate, and the strip-shaped pore plate is arranged at the air outlet of the small air box.
Furthermore, a plurality of supporting structures are arranged in the hollow cavity of the air blowing part and used for supporting the air blowing part.
Furthermore, the slit type pore plate is formed by uniformly arranging a plurality of obliquely arranged slit type pores.
Further, the air blowing part and the orifice plate structure are independent parts.
Furthermore, the holes at all positions on the pore plate structure are reduced along with the increase of the wind pressure above the holes, so that the uniformity of the wind pressure at all positions of the small wind box after passing through the pore plate structure is ensured.
Furthermore, the air inlet mode of the small air box is side air inlet or middle air inlet.
Furthermore, the wind distribution guide plates are multiple, and the wind distribution guide plates are flat plates or flat plates with bent part tail ends.
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 relation is that the length of the air outlet is slightly smaller than that of the air grid so as to ensure that the length of the slit air outlet is larger than the width of the maximum glass which can be contained by the existing air grid.
Furthermore, the slit type air outlet is a linear strip-shaped air outlet with the width being uniformly reduced.
The utility model discloses in a hierarchical static pressure air grid of glass tempering furnace, through album wind box, little bellows, set up the voltage-sharing device between the portion of blowing of cooling tuyere and little bellows, form hierarchical static pressure, make the wind pressure of cooling air more stable even. Cooling air enters the air collecting box from the fan, and primary static pressure is formed in the air collecting box; cooling air in the air collecting box enters the small air box through the air inlet to form a first-stage static pressure; cooling air in the small air box forms second-stage static pressure after passing through the pressure equalizing device; finally, the cooling air reaches the glass surface to be cooled from the cooling air nozzle. After the layered static pressure, the wind pressure of the cooling wind is kept uniform and stable.
The wind deflector can make the wind of the inside different positions of little bellows more even, and the size design in the hole of each position on the orifice plate structure can be according to the increase of its top wind pressure and reduce to guarantee the homogeneity of the wind pressure behind the orifice plate structure of the wind pressure of the different positions of little bellows. Further, the optimized layout design of the air guide plates and the pore plate structure can ensure that the air sprayed by the cooling nozzles in the small air box and at different positions is more uniform, and finally the glass toughening effect is improved.
Drawings
Fig. 1 is a schematic structural view of a staged static pressure air grid according to an embodiment of the present invention;
FIG. 2 is a schematic view of a two-stage static pressure air grid mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a three-stage static pressure air grid according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a four-stage static pressure air grid according to an embodiment of the present invention;
FIG. 5 is a first schematic view of the installation of the orifice plate structure of the present invention;
FIG. 6 is a schematic structural diagram of a perforated plate according to the present invention;
FIG. 7 is a schematic structural view of a second orifice plate according to the present invention;
fig. 8 is a first schematic structural diagram of a cooling nozzle according to a fourth embodiment of the present invention;
FIG. 9 is a schematic view of a cooling nozzle structure according to the present invention;
FIG. 10 is a schematic structural view of a five-staged static pressure air grid according to an embodiment of the present invention;
fig. 11 is a schematic view of the installation of the orifice plate structure of the present invention.
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.
The utility model provides a glass tempering furnace grading static pressure air grid includes the wind-collecting box, includes wind-collecting box, little bellows, cooling nozzle, blows wind portion and pressure-equalizing device, it is equipped with the cavity to blow the wind portion, and little bellows is connected to one end, and the other end is provided with a plurality of cooling nozzle, pressure-equalizing device set up in little bellows and/or in the portion of blowing and/or little bellows with between the portion of blowing, pressure-equalizing device is orifice plate structure and/or divides the wind guide plate, cooling nozzle is round hole formula or slot type air outlet.
The utility model discloses in a glass tempering furnace grading static pressure air grid, through in little bellows and/or in the portion of blowing and/or little bellows with set up the voltage-sharing device between the portion of blowing, in the course of the work, form the one-level static pressure in the case of album, wind in the case of album after the air intake gets into little bellows, form the second grade static pressure, treat after the wind pressure even in the portion of blowing that gets into the cooling tuyere through the voltage-sharing device, guarantee that the wind pressure at portion of blowing both ends keeps evenly stable, disperse to the cooling nozzle uniformly for the wind pressure of cooling nozzle air-out is stable even.
Example one
As shown in fig. 1, fig. 5 and fig. 6, the utility model relates to a glass tempering furnace grading static pressure air grid, including album of wind case 3 and a plurality of air grid unit, the air grid unit includes little wind case 2, cooling nozzle 5 and blowing portion 4 and pressure equalizer, is provided with pressure equalizer between little wind case 2 and the blowing portion 4, and pressure equalizer includes orifice plate structure 1, orifice plate structure 1 is one of round hole formula orifice plate or slot formula orifice plate or square hole formula orifice plate, in this embodiment, for round hole formula orifice plate be provided with a plurality of ventilation holes on the orifice plate structure 1, the total area in ventilation hole of orifice plate structure 1 is the twice of the total area of the air outlet of cooling nozzle 5.
In the above example, as shown in fig. 1, the glass tempering furnace is provided with a wind collecting box 3, and the wind collecting box 3 is communicated with the wind inlet of the small wind box 2 through a wind inlet pipe, wherein the wind inlet of the small wind box 2 is in a necking structure, and as can be seen from fig. 1, the top plate of the small wind box 2 is arranged obliquely. The air outlet of the small air box 2 is provided with a long strip-shaped round hole type pore plate, all the air in the small air box 2 passes through the round hole type pore plate and then enters the air blowing part 4, and four rows of round holes 1-1 which are arranged in a staggered mode are arranged on the round hole type pore plate, so that the air pressure of the air blown out by the air blowing part 4 is balanced. In this embodiment, the cooling nozzle 5 of the cooling air grid is provided with a slit-type air outlet as an air outlet of the cooling nozzle 5, and the total area of the ventilation holes of the circular hole-type hole plate is twice as large as the total area of the ventilation holes of the air outlet of the cooling nozzle 5. In some application environments, the aperture of the round hole 1-1 on the round hole type orifice plate is changed from large to small along the direction from the near end to the far end of the air inlet of the small air box 2, so that the change of the air pressure above the round hole type orifice plate is adapted, and the air pressure is relatively uniform after different air pressures above the round hole type orifice plate pass through the round hole type orifice plate.
It should be noted that the ratio of the total area of the vent holes of the circular hole type orifice plate to the total area of the vent holes of the air outlet of the cooling nozzle 5 can be changed by adjusting the number and the diameter of the circular holes 1-1 on the circular hole type orifice plate, for example, two rows of mutually staggered circular holes can be arranged on the circular hole type orifice plate, so that the total area of the vent holes of the circular hole type orifice plate is equal to the total area of the vent holes of the air outlet of the cooling nozzle 5; and so on.
As shown in fig. 2, the circular hole type orifice plate as the orifice plate structure 1 is installed between two side walls of the hollow cavity of the blowing part 4 perpendicular to the axis of the cooling air nozzle 5, and since the length of the cooling air grid is large during the production of large tempered glass in the actual production, the structural strength of the cooling air grid itself often affects the stability and uniformity of the air pressure of the air discharged from the cooling nozzle 5. In this embodiment, as shown in fig. 1, two rows of support columns are arranged in the hollow cavity of the blowing part 4 to support the blowing part 4, and the circular hole type hole plate can also play a role in supporting the blowing part 4, thereby improving the structural strength of the cooling air grid and further improving the air pressure stability of the air outlet of the cooling nozzle 5.
The utility model discloses in a hierarchical static pressure air grid of glass tempering furnace, through setting up the pressure equalizing device, in the course of the work, form elementary static pressure in the case of album, wind in the case of album 3 after the air intake gets into little bellows 2, form one-level static pressure, treat to form the second grade static pressure after the wind pressure is even through the pressure equalizing device, the cooling air gets into in the portion 4 of blowing of cooling tuyere 5, the wind pressure of the inside cooling air of portion 4 of blowing keeps balanced stable, disperse to cooling nozzle 5 uniformly, make the wind pressure of 5 air-outs of cooling nozzle stable even, the cooling air blows and has improved the cooling effect to glass on the glass surface, avoid the production of toughened glass upper wind spot in the very big degree, the quality of product is improved.
Example two
As shown in figure 2, the utility model relates to a glass tempering furnace grading static pressure air grid, including album of wind case 3 and a plurality of air grid unit, the air grid unit includes little bellows 2, cooling nozzle 5 and blows wind portion 4 and pressure-equalizing device, and pressure-equalizing device sets up in little bellows 2. In this embodiment, the pressure equalizing device is a wind distributing guide plate 6, the upper and lower surfaces of the wind distributing guide plate 6 perpendicular to the small air box 2 are arranged, as shown in fig. 4, the small air box 2 is internally provided with three wind distributing guide plates 6 for guiding cooling wind in the air collecting box 3 into the small air box 2, the wind distributing guide plate 6 is divided into a long strip-shaped plate and an arc-shaped plate, and the wind pressure is balanced when the cooling wind reaches the cooling nozzle 5.
In the above example, as shown in fig. 2, the glass tempering furnace is provided with a wind collecting box 3, the wind collecting box 3 is communicated with the wind inlet of the small wind box 2 through a wind inlet pipe, wherein the wind inlet of the small wind box 2 is of a throat structure, the top plate of the small wind box 2 is arranged obliquely, the wind distributing guide plate 6 comprises three plates, two long strip plates and one bent-end plate, as shown in fig. 4, the two long strip plates are arranged on the upper half part of the small wind box 2 and extend to the far end of the small wind box 2, and the bent-end plate is arranged on the lower half part of the small wind box 2 and is close to the wind inlet of the small wind box 2. In the above example, since the air pressure at the air inlet far from the small air box 2 is higher than the air pressure at the air inlet close to the small air box 2, the three plates provided in the present embodiment can adjust and equalize the air pressure inside the small air box 2, and reduce the air pressure difference between the near end and the far end of the air inlet of the small air box 2.
In this embodiment, the cooling nozzle 5 of the cooling air grid is provided with a slit-type air outlet as an air outlet of the cooling nozzle 5.
The utility model relates to a hierarchical static pressure air grid of glass tempering furnace, through setting up the voltage-sharing device, in the course of the work, form elementary static pressure in the case of album, wind in the case of album 3 after the air intake gets into little bellows 2, form one-level static pressure, treat to form the second grade static pressure after the wind pressure is even through the voltage-sharing device, the cooling air gets into in the portion 4 of blowing of cooling tuyere 5, the inside cooling air of portion 4 of blowing disperses to cooling nozzle 5 uniformly, make the wind pressure of 5 air-outs of cooling nozzle stable even, the cooling air blows and has improved the cooling effect to glass on the glass surface, avoid the production of toughened glass upper wind spot in the very big degree, the quality of product is improved.
EXAMPLE III
As shown in fig. 3 and 11, the utility model relates to a glass tempering furnace grading static pressure air grid, including air collecting box 3, little bellows 2, cooling nozzle 5 and blowing portion 4, be provided with the pressure equalizer in little bellows 2 and the blowing portion 4, the pressure equalizer includes orifice plate structure 1 and branch wind guide plate 6, orifice plate structure 1 is round hole formula orifice plate, orifice plate structure 1's the total area of ventilation hole is 6 times of the total area of the air outlet of cooling nozzle 5.
In the above example, as shown in fig. 3, the glass tempering furnace is provided with a wind collecting box 3, and the wind collecting box 3 is communicated with the wind inlet of the small wind box 2 through a wind inlet pipe, wherein the wind inlet of the small wind box 2 is in a necking structure, and as can be seen from the figure, the top plate of the small wind box 2 is arranged obliquely. A long circular hole type orifice plate is attached to the joint between the small wind box 2 and the blowing part 4, and in the present embodiment, as shown in fig. 9, the outlet of the cooling nozzle 5 is a slit type outlet.
As shown in fig. 5, the circular hole type orifice plate as the orifice plate structure 1 is installed between the two side walls of the blowing part 4 perpendicular to the axis of the cooling air nozzle, and since the length of the cooling air grid is generally long in actual production, the structural strength of the cooling air grid often affects the stability and uniformity of the air pressure of the air discharged from the cooling nozzle 5. As shown in fig. 1, two rows of support columns 7 are arranged in the blowing part to support the blowing part, and the round hole type pore plate can also play a role in supporting the blowing part 4, so that the structural strength of the cooling air grid is improved, and the stability of the air pressure of the air outlet of the cooling nozzle 5 is further improved.
The air distributing guide plates 6 are arranged on the upper surface and the lower surface of the small air box 2, in the embodiment, three air distributing guide plates 6 are arranged in the small air box 2 to guide cooling air in the air collecting box 3 into the small air box 2, each air distributing guide plate 6 comprises two strip-shaped plates and a flat plate with the tail end bent, and the air pressure is balanced when the cooling air reaches the cooling nozzle. As shown in the figure, two strip-shaped flat plates are obliquely arranged on the upper half part of the small air box 2 in parallel with the inclined top plate of the small air box and extend to the far end of the small air box 2, and the flat plate with the bent tail end is arranged on the lower half part of the small air box 2 and is close to the air inlet of the small air box 2. Because the air pressure at the air inlet far away from the small air box 2 is higher than the air pressure at the air inlet close to the small air box 2, the three plates arranged in the embodiment can adjust and homogenize the air pressure in the small air box 2, and reduce the air pressure difference between the near end and the far end of the air inlet of the small air box 2;
as shown in fig. 7, along the direction from the near end to the far end of the air inlet of the small air box 2, the aperture of the hole 1-1 on the circular hole type pore plate is changed from large to small, so as to adapt to the change of the air pressure above the slit type pore plate, so that the air pressure is relatively uniform after different air pressures on the circular hole type pore plate pass through the circular hole type pore plate; the slit orifice plate and the air distribution guide plate are mutually matched, so that the air pressure of cooling air entering the air blowing part 4 from the small air box 2 is balanced.
Through the combined application of the circular hole type pore plate structure and the air distribution guide plate, cooling air can more uniformly reach the cooling nozzle.
The utility model discloses in a hierarchical static pressure air grid of glass tempering furnace, through setting up the pressure equalizing device, in the course of the work, form elementary static pressure in the case of album, wind in the case of album 3 after the air intake gets into little bellows 2, form one-level static pressure, treat to form the second grade static pressure after the wind pressure is even through the pressure equalizing device, the cooling air gets into in the portion 4 of blowing of cooling tuyere 5, the wind pressure of the inside cooling air of portion 4 of blowing keeps balanced stable, disperse to cooling nozzle 5 uniformly, make the wind pressure of 5 air-outs of cooling nozzle stable even, the cooling air blows and has improved the cooling effect to glass on the glass surface, avoid the production of toughened glass upper wind spot in the very big degree, the quality of product is improved.
Example four
As shown in FIG. 4, the utility model relates to a glass tempering furnace grading static pressure air grid, including album of wind case 3 and a plurality of air grid unit, the air grid unit includes little bellows 2, cooling nozzle 5 and blows wind portion 4 and pressure-equalizing device, and pressure-equalizing device sets up in little bellows 2. In this embodiment, the pressure equalizing device is a wind distributing guide plate 6, the wind distributing guide plate 6 is arranged on two upper and lower surfaces of the small air box 2, as shown in fig. 4, three wind distributing guide plates 6 are arranged in the small air box 2 to guide cooling wind in the air collecting box 3 into the small air box 2, the wind distributing guide plate 6 is divided into a strip-shaped plate and a flat plate with a bent end, and the wind distributing guide plates are matched with each other to balance wind pressure when the cooling wind reaches the cooling nozzle. The glass tempering furnace is provided with an air collecting box 3, the air collecting box 3 is communicated with an air inlet of a small air box 2 through an air inlet pipe, wherein the air inlet of the small air box 2 is of a necking structure, a top plate of the small air box 2 is arranged in an inclined mode, an air distribution guide plate 6 comprises three plates, two long strip-shaped flat plates and a flat plate with a bent tail end are arranged, as shown in the figure, one end of each long strip-shaped flat plate is connected with the inclined top plate of the small air box 2, and the flat plate with the bent tail end is arranged at the position close.
In the above example, the cooling nozzle 5 is a slit outlet, as shown in fig. 8, which is a linear strip outlet with a uniformly decreasing width along the direction from the proximal end to the distal end of the inlet of the small air box 2.
In the above example, since the wind pressure at the wind inlet far from the small wind box 2 is higher than the wind pressure at the wind inlet close to the small wind box 2, the three plates provided in this embodiment can adjust and homogenize the wind pressure inside the small wind box 2, and reduce the wind pressure difference between the near end and the far end of the wind inlet of the small wind box 2; meanwhile, a gap type air outlet with uniformly reduced width is arranged to control the air volume and the air pressure of the near end and the far end of the air inlet of the small air box 2; the above two are combined to equalize the wind pressure of the cooling wind blown out from the slit type outlet of the cooling nozzle 5.
EXAMPLE five
As shown in fig. 5, fig. 6 and fig. 10, the utility model relates to a glass tempering furnace grading static pressure air grid, including album of wind case 3 and a plurality of air grid unit, the air grid unit includes little bellows 2, cooling nozzle 5 and blowing portion 4 and pressure equalizer, is provided with pressure equalizer between little bellows 2 and the blowing portion 4, and pressure equalizer includes orifice plate structure 1, orifice plate structure 1 is one of round hole formula orifice plate or slot formula orifice plate or square hole formula orifice plate, in this embodiment, for round hole formula orifice plate the orifice plate is structural to be provided with a plurality of ventilation holes, the total area in ventilation hole of orifice plate structure is 12 times of the total area of the air outlet of cooling nozzle 5.
The difference from the first embodiment is that in the present embodiment, the small air box 2 is used for middle air intake, and an air intake opening is formed on a top plate of the small air box 2 and communicated with the air collecting box 3. In addition, the orifice plate structure 1 is a circular orifice plate, a plurality of rows of circular orifices are arranged on the circular orifice plate, and the apertures of the circular orifices gradually change from the middle part of the circular orifice plate to the apertures at two ends so as to adapt to the change of the air pressure above the circular orifice plate and balance the air pressure of the air blown out by the air blowing part 4.
The rest of this embodiment is consistent with the other embodiments, and thus, the description thereof is omitted.
EXAMPLE six
The structure of the embodiment is the same as that of the embodiment, and the difference is that a plurality of pore plate structures 1 serving as the air equalizing device can be arranged between the small air box 2 and the air blowing part 4 and are parallel to each other, the total area of the vent holes of one pore plate structure 1 closest to the cooling nozzles is 3 times of the total area of the air outlets of the cooling nozzles 5, and a plurality of circular holes are arranged on the pore plate structure 1 and are shown in fig. 6; the aperture of the round holes on the other orifice plate structures 1 is not changed, and the total ventilation area of the round holes 1-1 is the same as the total air outlet area of the cooling nozzle 5.
Besides, the position of the orifice plate structure 1 may be in the small bellows, in the blowing part 4, or dispersed in the small bellows 2 and the blowing part 4, and may be placed at the connection of the small bellows 2 and the blowing part 4 as described above. In the actual production process, the placing positions of the above components can be flexibly combined. In the above example, the orifice plate structure 1 is connected to both side walls of the blowing part 4 or the small air box 2, and the orifice plate structure 1 is perpendicular to both side walls of the blowing part 4 or the small air box 2.
It is noted that some of the structures may be selected differently than the specific examples given above. For example, the shapes of the vent holes of the orifice plate structure and the air outlets of the cooling nozzles do not have a one-to-one correspondence, and only the area ratio needs to be satisfied. Alternatively, the orifice plate structure may have square or slotted holes instead of circular holes. Alternatively, as shown in fig. 9, the plurality of slit outlets may be inclined strip outlets or wave-shaped outlets. Not all embodiments are listed in the above examples; and so on. 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 (12)
1. The utility model provides a glass tempering furnace grading static pressure air grid, its characterized in that includes album wind box and a plurality of air grid unit, every air grid unit includes little bellows, cooling nozzle, blows wind portion and voltage-sharing device, it is equipped with the cavity to blow the wind portion, and one end is connected little bellows, and the other end is provided with a plurality of cooling nozzle, voltage-sharing device sets up in little bellows and/or in the portion of blowing and/or little bellows with between the portion of blowing, voltage-sharing device is orifice plate structure and/or branch wind guide plate, the total area of ventilation hole of orifice plate structure is 1-12 times of the total area of the air outlet of cooling nozzle, the cooling nozzle is round hole formula or slot type air outlet.
2. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said orifice plate structure is a circular orifice plate or a slit orifice plate or a square orifice plate.
3. The staged static pressure air grid for a glass tempering furnace according to claim 2, wherein said orifice plate structure is one, and the total area of said air vents is 1 to 12 times the total area of said air outlets of said cooling nozzles.
4. The staged static pressure air grid for a glass tempering furnace according to claim 2, wherein said perforated plate structure is plural and parallel to each other, and the total area of the vent holes of one perforated plate structure closest to the cooling nozzles is 1-12 times the total area of the air outlet of the cooling nozzles.
5. The graded static pressure air grid of the glass tempering furnace according to any one of claims 3 or 4, wherein the pore plate structure is an elongated pore plate, and the elongated pore plate is arranged at an air outlet of the small air box.
6. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein a plurality of supporting structures are provided in said hollow chamber for supporting said blowing part.
7. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said air blowing part and said orifice plate structure are independent parts.
8. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein holes at different positions on said perforated plate structure are reduced with increasing air pressure above it.
9. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said small air box is a side air inlet or a middle air inlet.
10. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said air distribution baffle is a plurality of baffles, and said air distribution baffle is a flat plate or a flat plate with a bent end.
11. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said slit-type air outlet is a linear strip-shaped air outlet extending perpendicular to the glass conveying direction, and the length of said linear strip-shaped air outlet is matched with the length of said air grid.
12. The staged static pressure air grid for a glass tempering furnace according to claim 1, wherein said slit-type air outlet is a linear strip-shaped air outlet with a uniformly reduced width.
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| CN111718109A (en) * | 2020-05-29 | 2020-09-29 | 洛阳兰迪玻璃机器股份有限公司 | Graded static pressure air grid of glass tempering furnace and glass tempering cooling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718109A (en) * | 2020-05-29 | 2020-09-29 | 洛阳兰迪玻璃机器股份有限公司 | Graded static pressure air grid of glass tempering furnace and glass tempering cooling method |
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