Air nozzle and asymmetric blowing air grid

Abstract

The utility model discloses an air nozzle and an asymmetric blowing air grid, an air blowing cavity is arranged in the air nozzle, and the air blowing cavity is provided with a first side wall, a second side wall and an air blowing wall connected between the first side wall and the second side wall; the first side wall and the second side wall are parallel and symmetrically distributed relative to the center face of the air blowing cavity, and the air blowing wall is provided with a first air hole and a second air hole. The first air holes and the second air holes are asymmetrically distributed relative to the center face of the air blowing cavity. The asymmetric blowing air grid comprises the air nozzle. According to the tuyere and the asymmetric blowing air grid, efficient single-side blowing of the tuyere can be guided through the first air holes and the second air holes which are asymmetrically distributed.

Description

Technical Field

[0001] The utility model relates to the technical field of toughened glass production equipment, in particular to a nozzle and an asymmetric blowing air grille. Background Art

[0002] The horizontal roller - type glass toughening unit heats ordinary annealed glass to a temperature close to the softening point in a heating furnace first, and then rapidly and uniformly cools it through a cooling air grille to achieve the toughening of the glass. At present, in order to ensure the uniformity of glass cooling in the cooling air grille of the glass toughening unit on the market, the blowing nozzles are all symmetric blowing structures, that is, relative to the center line of the nozzle, the blowing surfaces on both sides (or multiple sides) are left - right symmetric structures, and there are blowing air holes arranged in a specific pattern on the blowing surfaces.

[0003] In some specific situations, to meet specific process requirements, the nozzle needs to blow air to one side of the center line of the nozzle, such as the first or the first few nozzles at the docking position of the cooling air grille and the heating furnace. In this case, the current solution in the prior art is to use the existing symmetric nozzles, cancel the air holes on the blowing surface of the side that does not need to blow air, and only drill air holes on the blowing surface of the side that needs to blow air. This solution has great defects: on the one hand, the air flow curve of the symmetrically designed nozzle is suitable for symmetric blowing, and when blowing air unidirectionally, the air flow is not smooth and the blowing effect is not good; on the other hand, vortices will be generated inside the nozzle, resulting in a large amount of energy loss and serious energy waste. Summary of the Utility Model

[0004] In order to overcome at least one of the above - mentioned defects of the prior art, the utility model provides a nozzle and an asymmetric blowing air grille, which can guide the one - side high - efficiency blowing of the nozzle through asymmetrically distributed first air holes and second air holes.

[0005] The technical solution adopted by the utility model to solve its problems is as follows:

[0006] A nozzle, in which a blowing cavity is provided, the blowing cavity has a first side wall, a second side wall, and a blowing wall connecting between the first side wall and the second side wall; the first side wall and the second side wall are parallel and symmetrically distributed relative to the central plane of the blowing cavity, and the blowing wall is provided with first air holes and second air holes; the first air holes and the second air holes are asymmetrically distributed relative to the central plane of the blowing cavity.

[0007] Further, the blowing wall is arranged in an inclined state, and the blowing directions of the first air holes and the second air holes are perpendicular to the blowing wall.

[0008] Further, the blowing wall is arranged in an arc shape; the blowing direction of the first air hole is perpendicular to the arc tangent of the blowing wall; the blowing direction of the second air hole is perpendicular to the arc tangent of the blowing wall.

[0009] Further, the blowing wall is divided into a first blowing section and a second blowing section by the central plane of the blowing cavity. The first blowing section is connected to the first side wall, and the second blowing section is connected to the second side wall. The plane where the first blowing section is located is arranged at an angle to the plane where the second blowing section is located. The first air eye is arranged on the first blowing section, and the second air eye is arranged on the second blowing section. The blowing direction of the first air eye is perpendicular to the plane where the first blowing section is located, and the blowing direction of the second air eye is perpendicular to the plane where the second blowing section is located.

[0010] Further, both the first blowing section and the second blowing section are inclined; the inclination angles of the first blowing section and the second blowing section are different.

[0011] Further, the first blowing section is a straight line segment, and the second blowing section is an arc segment or a straight line segment arranged obliquely.

[0012] Further, the plane where the first blowing section is located is perpendicular to the central plane of the blowing cavity.

[0013] Further, the first blowing section is arranged obliquely.

[0014] Further, the first blowing section is an arc segment, and the second blowing section is a straight line segment; the straight line segment is arranged obliquely.

[0015] An asymmetric blowing air grille includes the air nozzle described above.

[0016] In summary, the present invention has the following technical effects:

[0017] The air flow velocity and air flow rate flowing through the blowing wall and led out from the first air eye and the second air eye are different due to the different distances from the first air eye and the second air eye to both sides. Therefore, the wind speeds and air volumes led out from the first air eye and the second air eye are different, and there is a differential speed of the wind speeds led out from both sides of the central plane of the blowing cavity. The wind speed and air volume led out from the first air eye are greater than those led out from the second air eye. In this way, when the air nozzle blows air, the wind speed and air volume led out from the first air eye can form an air curtain on the side of the air nozzle close to the heating furnace, preventing the air flow from flowing back into the heating furnace. Moreover, the wind speed and air volume led out from the first air eye are large, and the cold air of the second air eye on the other side is also blown to the side away from the heating furnace, making the air flow smooth during single-sided blowing, and the blowing effect is excellent, thereby improving the cooling effect. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the air nozzle of the present invention;

[0019] Figure 2 "Another structural schematic diagram of the air nozzle of the present utility model;

[0020] Figure 3 Another structural schematic diagram of the air nozzle of the present utility model;

[0021] Figure 4 Another structural schematic diagram of the air nozzle of the present utility model;

[0022] Figure 5 Another structural schematic diagram of the air nozzle of the present utility model.

[0023] Among them, the meanings of the reference numerals are as follows: 11, blowing cavity; 12, first side wall; 13, second side wall; 14, blowing wall; 141, first blowing section; 142, second blowing section; 15, first air eye; 16, second air eye. Specific embodiments

[0024] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0027] Embodiment 1

[0028] Refer to Figures 1 - 5 , the present utility model discloses an air nozzle, in which a blowing cavity 11 is provided in the air nozzle. The blowing cavity 11 has a first side wall 12, a second side wall 13 and a blowing wall 14. The blowing wall 14 is connected between the first side wall 12 and the second side wall 13. Specifically, the first side wall 12 and the second side wall 13 are parallel and symmetrically distributed with respect to the central plane of the blowing cavity 11. A first air eye 15 and a second air eye 16 are provided on the blowing wall 14. The above-mentioned first air eye 15 and second air eye 16 are asymmetrically distributed with respect to the central plane of the blowing cavity 11.

[0029] Based on the above structure, when using the air nozzle structure of the present utility model, the air nozzle can be used for the cooling air grille in the production process of tempered glass. During the cooling of the glass, the tempered glass heated in the heating furnace is conveyed to the cooling air grille through the conveying component, and the air nozzle of the cooling air grille blows air on the surface of the glass for cooling, so as to realize the tempering of the glass.

[0030] Since the heating furnace is arranged at the previous station in the conveying direction of the cooling air grille, if the glass is cooled by blowing air from the air nozzle, the cooling air blown out from the air nozzle is likely to be blown back into the heating furnace under the action of the cooling air of other adjacent air nozzles, affecting the stability of the heating temperature of the heating furnace.

[0031] Therefore, in this application, a first air eye 15 and a second air eye 16 are arranged on the blowing wall 14 of the air nozzle. When the air nozzle is arranged, the first air eye 15 and the second air eye 16 are spaced apart in the conveying direction, that is, the first air eye 15 is closer to the heating furnace side. Since the first air eye 15 and the second air eye 16 are asymmetrically distributed relative to the central plane of the blowing cavity 11, the distance from the first air eye 15 to the first side wall 12 is different from the distance from the second air eye 16 to the second side wall 13. When the cooling air is introduced into the blowing cavity 11, the air flow velocities guided by the symmetrically distributed first side wall 12 and second side wall 13 will be consistent, and the air flow inside the air nozzle is smooth, without energy-consuming phenomena such as eddy currents.

[0032] The air flow velocities and air flow rates flowing through the blowing wall to the first air eye 15 and the second air eye 16 and being discharged are different due to the different distances from the first air eye 15 and the second air eye 16 to both sides. Therefore, the wind speeds and air volumes discharged from the first air eye 15 and the second air eye 16 are different, so that there is a differential speed in the wind speeds derived from both sides of the central plane of the blowing cavity 11. The wind speed and air volume derived from the first air eye 15 are greater than those derived from the second air eye 16. In this way, when the air nozzle blows air, the wind speed and air volume derived from the first air eye 15 can form an air curtain on the side of the air nozzle close to the heating furnace, preventing the situation of air flow backflow into the heating furnace. Moreover, the wind speed and air volume derived from the first air eye 15 are large, and the cold air of the second air eye 16 on the other side is also blown to the side away from the heating furnace, making the air flow smooth during single-sided blowing, with an excellent blowing effect, and thus improving the cooling effect.

[0033] It should be noted that in order to better guide the air eye to blow air in a one-way manner, specifically, the above-mentioned blowing wall is asymmetrically arranged relative to the central plane of the blowing cavity, and the first air eye and the second air eye are also asymmetrically distributed, that is, the first air eye and the second air eye. In this way, the distances from the air flow in the blowing cavity to the two sides of the asymmetrically distributed blowing wall are different, so the wind speeds and air volumes of the air flow passing through the first air eye and the second air eye distributed on the asymmetrically distributed blowing wall must be different, and a better blowing differential speed can be formed.

[0034] Of course, the first air eye and the second air eye can also be distributed on the blowing wall. The blowing wall is symmetrically arranged with respect to the central plane of the blowing cavity. It only needs to make the distances from the first air eye and the second air eye to the central plane of the blowing cavity different to achieve asymmetric distribution. In this case, the blowing directions of the first air eye and the second air eye can both be blown obliquely, or the first air eye can blow vertically and the second air eye can blow obliquely.

[0035] Specifically, the following embodiments will be described with the blowing wall being asymmetrically arranged with respect to the central plane of the blowing cavity:

[0036] Embodiment 2,

[0037] Further, referring to Figure 2 , in this embodiment, the above-mentioned blowing wall 14 is arranged in an inclined state. The blowing directions of the first air eye 15 and the second air eye 16 are perpendicular to the blowing wall 14. Since the blowing wall 14 is arranged in an inclined state, the blowing direction perpendicular to the inclined blowing wall 14 must also be inclined. That is, the cold air blown out from the first air eye 15 is towards the direction away from the heating furnace. Similarly, the cold air blown out from the second air eye 16 is also towards the direction away from the heating furnace, so that the blowing directions of the first air eye 15 and the second air eye 16 can both be kept away from the heating furnace direction, and the first air eye 15 and the second air eye 16 are asymmetrically distributed with respect to the central plane of the blowing cavity 11. Therefore, the wind speed and air volume derived from the first air eye 15 are large. Similarly, the cold air of the second air eye 16 on the other side is blown towards the side away from the heating furnace, making the air flow smooth during single-sided blowing, and the blowing effect is excellent, thereby improving the cooling effect.

[0038] In addition, since the first air eye 15 and the second air eye 16 are arranged on the inclined blowing wall 14, the blowing distances from the inclined blowing wall 14 to the glass are different, so the wind speed difference is even greater. The first air eye 15 close to the heating furnace is below, and the second air eye 16 far from the heating furnace is above. In this way, there must be a wind speed difference between the first air eye 15 and the second air eye 16, which can guide the blowing to be unidirectionally exported, the air flow is smooth, and the blowing effect is excellent.

[0039] Embodiment 3,

[0040] Further, referring to Figure 3, different from Embodiment 2, in this embodiment, the blowing wall 14 is arc-shaped. Similarly, the blowing direction of the first air eye 15 is perpendicular to the arc tangent of the blowing wall 14; the blowing direction of the second air eye 16 is perpendicular to the arc tangent of the blowing wall 14. Since the tangents at each position of the arc-shaped blowing wall 14 are different, the inclination angles of the blowing wall 14 perpendicular to the tangents at the corresponding positions of the first air eye 15 and the inclination angles of the blowing wall 14 perpendicular to the tangents at the corresponding positions of the second air eye 16 are different. The angle between the blowing direction of the first air eye 15 and the central plane of the blowing cavity 11 is smaller than the angle between the blowing direction of the second air eye 16 and the neutral plane of the blowing cavity 11. In this way, the blowing direction of the first air eye 15 close to the heating furnace has a smaller inclination relative to the central plane of the blowing cavity 11, and the blowing direction of the second air eye 16 far away has a larger inclination relative to the central plane of the blowing cavity 11. It can form an air curtain in front of the blowing direction of the second air eye 16 to form an air curtain, and the second air eye 16 can guide the blowing away from the heating furnace, so that the effect of preventing the air flow from flowing back into the heating furnace is better.

[0041] Moreover, since the blowing wall 14 is arc-shaped, that is, the connection positions with the first side wall 12 and the second side wall 13 are both arc-shaped connections, and the air is guided by an arc surface, the wind speed is gentle, preventing the occurrence of eddy currents.

[0042] Embodiment 4

[0043] Further, referring to Figures 3 - 5 , different from the above embodiments, in this embodiment, the blowing wall 14 is divided into a first blowing section 141 and a second blowing section 142 by the central plane of the blowing cavity 11. The first blowing section 141 is connected to the first side wall 12, and the second blowing section 142 is connected to the second side wall 13. And the plane where the first blowing section 141 is located and the plane where the second blowing section 142 is located are arranged at an angle; the first blowing section 141 and the first air eye 15 are arranged on the first blowing section 141, and the second air eye 16 is arranged on the second blowing section 142; the blowing direction of the first air eye 15 is perpendicular to the plane where the first blowing section 141 is located, and the blowing direction of the second air eye 16 is perpendicular to the plane where the second blowing section 142 is located. [[ID=*13]]

[0044] In this way, the inclination angles of the blowing wall 14 perpendicular to the tangents at the corresponding positions of the first air eye 15 and the inclination angles of the blowing wall 14 perpendicular to the tangents at the corresponding positions of the second air eye 16 are different. The angle between the blowing direction of the first air eye 15 and the central plane of the blowing cavity 11 is smaller than the angle between the blowing direction of the second air eye 16 and the neutral plane of the blowing cavity 11. In this way, the blowing direction of the first air eye 15 close to the heating furnace has a smaller inclination relative to the central plane of the blowing cavity 11, and the blowing direction of the second air eye 16 far away has a larger inclination relative to the central plane of the blowing cavity 11. It can form an air curtain in front of the blowing direction of the second air eye 16 to form an air curtain, and the second air eye 16 can guide the blowing away from the heating furnace, so that the effect of preventing the air flow from flowing back into the heating furnace is better.

[0045] Example 5

[0046] On the basis of Example 4, the first blowing section 141 and the second blowing section 142 can have different setting forms, and the first blowing section 141 is a straight line section, and the second blowing section 142 is a straight line section arranged obliquely or an arc section:

[0047] First, see Figure 3 and Figure 4 , both the first blowing section 141 and the second blowing section 142 are straight line sections.

[0048] See Figure 3 , the plane where the first blowing section 141 is located is vertically arranged with respect to the central plane of the blowing cavity 11, and the second blowing section 142 is a straight line section arranged obliquely,

[0049] In this way, the blowing direction of the first air eye 15 arranged on the first blowing section 141 is vertically arranged with respect to the horizontal plane, that is, it blows directly vertically downward to form an air curtain in the vertical direction, and the blowing direction of the second air eye 16 arranged on the second blowing section 142 is perpendicular to the inclined second blowing section 142, and the blowing direction of the second air eye 16 is inclined. The first air eye 15 forms an air curtain, and the second air eye 16 guides the blowing away from the heating furnace, so that unilateral blowing can also be formed.

[0050] See Figure 4 , the above-mentioned first blowing section 141 and second blowing section 142 are both straight line sections, and both the first blowing section 141 and the second blowing section 142 are arranged obliquely,

[0051] In this way, the inclination angles of the first blowing section 141 and the second blowing section 142 are different. In this way, the blowing direction of the first air eye 15 close to the heating furnace has a small inclination with respect to the central plane of the blowing cavity 11, and the blowing direction of the second air eye 16 far away has a large inclination with respect to the central plane of the blowing cavity 11. It can form an air curtain in front of the blowing direction of the second air eye 16 to form an air curtain, and the second air eye 16 can guide the blowing away from the heating furnace, so that the effect of preventing the backflow of air to the heating furnace is better.

[0052] Second, see Figure 5 , the first blowing section 141 is a straight line section, and the second blowing section 142 is an arc section. In this way, the first air eye 15 is arranged on the straight line section, and the second air eye 16 is arranged on the arc section. The combination of the inclined plane and the arc surface is more convenient for arranging the air eyes, and the backflow of air to the heating furnace can also be prevented.

[0053] Example 6

[0054] On the basis of Example 4, different from Example 5, the first blowing section 141 is an arc section, the second blowing section 142 is a straight line section, and the straight line section is arranged obliquely.

[0055] The blowing direction of the first air eye 15 provided on the first blowing section 141 can be set perpendicular to the arc tangent of the first blowing section 141. Similarly, an inclined or vertical blowing direction can also be formed to create an air curtain on the front side of the blowing direction of the second air eye 16, and the second air eye 16 can guide the blowing direction away from the heating furnace.

[0056] Similarly, the combination of the inclined surface and the arc surface is more convenient for arranging the air eyes and can also prevent reverse air flow into the heating furnace.

[0057] Embodiment 7

[0058] Based on any of the above embodiments, this embodiment provides an asymmetric blowing air grille, including the air nozzles of any of the above embodiments. Its effects and principles are the same as those of any of the above embodiments, and the other structures of the air grille are the same as those in the prior art and will not be elaborated here in detail.

[0059] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A nozzle, characterized in that, The air nozzle is provided with a blowing cavity, and the blowing cavity has a first side wall, a second side wall, and a blowing wall connecting between the first side wall and the second side wall; the first side wall and the second side wall are parallel and symmetrically distributed relative to the central plane of the blowing cavity, and the blowing wall is provided with a first air eye and a second air eye; the first air eye and the second air eye are asymmetrically distributed relative to the central plane of the blowing cavity.

2. The air nozzle according to claim 1, characterized in that, The blowing wall is asymmetrically arranged relative to the central plane of the blowing cavity; the blowing wall is arranged in an inclined state, and the blowing directions of the first air eye and the second air eye are perpendicular to the blowing wall.

3. The air nozzle according to claim 1, characterized in that, The blowing wall is asymmetrically arranged relative to the central plane of the blowing cavity; the blowing wall is arranged in an arc shape; the blowing direction of the first air eye is perpendicular to the arc tangent of the blowing wall; the blowing direction of the second air eye is perpendicular to the arc tangent of the blowing wall.

4. The air nozzle according to claim 1, wherein, The blowing wall is asymmetrically arranged relative to the central plane of the blowing cavity; the blowing wall is divided into a first blowing section and a second blowing section by the central plane of the blowing cavity, the first blowing section is connected to the first side wall, and the second blowing section is connected to the second side wall; the plane where the first blowing section is located and the plane where the second blowing section is located are arranged at an angle; the first blowing section and the first air eye are arranged in the first blowing section, and the second air eye is arranged in the second blowing section; the blowing direction of the first air eye is perpendicular to the plane where the first blowing section is located, and the blowing direction of the second air eye is perpendicular to the plane where the second blowing section is located.

5. The air nozzle according to claim 4, characterized in that, Both the first blowing section and the second blowing section are arranged obliquely; the inclination angles of the first blowing section and the second blowing section are different.

6. The air nozzle according to claim 4, characterized in that, The first blowing section is a straight line segment, and the second blowing section is an arc segment or a straight line segment arranged obliquely.

7. The air nozzle according to claim 6, characterized in that, The plane where the first blowing section is located is perpendicular to the central plane of the blowing cavity.

8. The air nozzle according to claim 6, characterized in that, The first blowing section is arranged obliquely.

9. The air nozzle according to claim 4, characterized in that, The first blowing section is an arc segment, and the second blowing section is a straight line segment; the straight line segment is arranged obliquely.

10. An asymmetric blowing air grille, characterized in that, Comprising the air nozzle according to any one of claims 1-9.

Images