CN118495796A - A non-uniformly spaced cooling air grille - Google Patents
A non-uniformly spaced cooling air grille Download PDFInfo
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- CN118495796A CN118495796A CN202410970965.7A CN202410970965A CN118495796A CN 118495796 A CN118495796 A CN 118495796A CN 202410970965 A CN202410970965 A CN 202410970965A CN 118495796 A CN118495796 A CN 118495796A
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- 238000001816 cooling Methods 0.000 title claims abstract description 80
- 239000011521 glass Substances 0.000 claims abstract description 76
- 238000007664 blowing Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 230000001965 increasing effect Effects 0.000 claims abstract description 7
- 239000005341 toughened glass Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005496 tempering Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
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Abstract
一种非等间距冷却风栅，涉及钢化玻璃生产设备，在输送辊道输送方向上具有多个冷却风区，每个冷却风区的吹风嘴具有相同的风压，在衔接玻璃加热炉的一个冷却风区中，输送辊道采用非等间距排布，靠近输送辊道输出方向的一端具有比另一端更大的辊间距，吹风嘴同样采用非等间距的排布，靠近输送辊道输出方向一端的吹风嘴与靠近输入方向一端的吹风嘴相比具有相同的风压以及更大的分布间距，在玻璃输送方向上形成不同的气流密度分布。在满足玻璃出炉需求的同时，增大后续吹风嘴的间距，提高热风排出效率。既不影响玻璃在输送方向上的冷却均匀性，又降低了玻璃宽度方向上中部和边缘的冷却速度差异，提高了玻璃的质量。
A non-uniformly spaced cooling air grid relates to a tempered glass production device, which has multiple cooling air zones in the conveying direction of the conveying roller, and the blowing nozzles in each cooling air zone have the same wind pressure. In a cooling air zone connected to a glass heating furnace, the conveying rollers are arranged in non-uniform spacing, and the roller spacing at one end close to the output direction of the conveying rollers is larger than that at the other end. The blowing nozzles are also arranged in non-uniform spacing, and the blowing nozzles at one end close to the output direction of the conveying rollers have the same wind pressure and a larger distribution spacing compared with the blowing nozzles at one end close to the input direction, forming different air flow density distributions in the glass conveying direction. While meeting the demand for glass to be discharged from the furnace, the spacing between subsequent blowing nozzles is increased to improve the hot air discharge efficiency. It does not affect the cooling uniformity of the glass in the conveying direction, and reduces the difference in cooling speed between the middle and the edge in the width direction of the glass, thereby improving the quality of the glass.
Description
技术领域Technical Field
本发明涉及钢化玻璃生产设备，具体的说是一种玻璃钢化设备的非等间距冷却风栅。The invention relates to tempered glass production equipment, in particular to a non-equidistant cooling air grid of glass tempering equipment.
背景技术Background Art
玻璃钢化机组中冷却风栅用来完成对加热后的玻璃钢化、半钢化及冷却降温，对于往复式玻璃钢化机组，玻璃在冷却风栅中完成钢化时往复摆动，为保证玻璃均匀冷却，冷却风栅风嘴间距及辊间距为均布排列。而对于一些特殊场合应用的玻璃钢化机组，在钢化玻璃的过程中，玻璃从设备入端单方向运行至玻璃出端，不进行往复运动，每组风嘴对玻璃均为全版面单次吹风。The cooling air grid in the glass tempering unit is used to temper, semi-temper and cool the heated glass. For the reciprocating glass tempering unit, the glass swings back and forth in the cooling air grid when tempering. To ensure uniform cooling of the glass, the spacing between the cooling air grid nozzles and the roller spacing is evenly arranged. For glass tempering units used in some special occasions, during the tempering process, the glass runs in one direction from the equipment inlet to the glass outlet without reciprocating motion. Each group of air nozzles blows air to the entire surface of the glass at one time.
目前市场上的玻璃钢化机组，冷却风嘴的间距通常根据风压、风量、玻璃温度等因素设定，而玻璃钢化工艺通常需要对加热后的玻璃按照不同的冷却速率逐步进行冷却。基于该原因，玻璃钢化机组的冷却段通常分为多个不同风压的冷却风区，在风压一定的同一冷却风区中，冷却风栅均采用辊间距和风嘴间距均匀排布的结构，以此保持一个区段内玻璃冷却温度的均匀性。由于玻璃钢化工艺要求，玻璃出加热炉后需要一定的时间完成急速冷却，完成急速冷却的风栅冷却风区需要足够的长度。在玻璃钢化机组所生产的玻璃日益变薄的情况下，辊间距需要压缩至很小才能满足玻璃的出炉需求，同时由于等辊间距的布置方式，导致与加热炉相接的一长段冷却风区中的输送辊道都采用较小的辊间距，如CN208327809U、CN203683362U。由于风嘴布置在相邻输送辊之间的位置，因辊间距小，风嘴间距也相应减小，玻璃从加热炉完全进入冷却风栅后，风嘴向玻璃吹出的高压风没有足够的排风空间，与玻璃热交换后的热风无法及时排到外界，严重影响玻璃表面特别是中间部位的冷却散热速度，造成玻璃冷却不均导致的版面变形，同时排风不畅造成大量能量损耗。At present, the spacing of cooling nozzles of glass tempering units on the market is usually set according to factors such as wind pressure, air volume, and glass temperature, while the glass tempering process usually requires the heated glass to be gradually cooled at different cooling rates. For this reason, the cooling section of the glass tempering unit is usually divided into multiple cooling air zones with different wind pressures. In the same cooling air zone with a certain wind pressure, the cooling air grid adopts a structure with uniform roller spacing and nozzle spacing, so as to maintain the uniformity of the glass cooling temperature in a section. Due to the requirements of the glass tempering process, it takes a certain amount of time for the glass to be rapidly cooled after leaving the heating furnace, and the wind grid cooling air zone for rapid cooling needs to be of sufficient length. In the case of increasingly thin glass produced by the glass tempering unit, the roller spacing needs to be compressed to a very small size to meet the needs of glass leaving the furnace. At the same time, due to the arrangement of equal roller spacing, the conveying rollers in a long cooling air zone connected to the heating furnace all adopt smaller roller spacing, such as CN208327809U and CN203683362U. Since the air nozzles are arranged between adjacent conveying rollers and the distance between the rollers is small, the distance between the air nozzles is also reduced accordingly. After the glass completely enters the cooling air grid from the heating furnace, the high-pressure air blown by the air nozzles to the glass does not have enough exhaust space, and the hot air after heat exchange with the glass cannot be discharged to the outside in time, which seriously affects the cooling and heat dissipation speed of the glass surface, especially the middle part, causing uneven cooling of the glass and deformation of the layout. At the same time, poor exhaust causes a lot of energy loss.
发明内容Summary of the invention
本发明所要解决的技术问题提高玻璃出炉后冷却风栅冷却区段的热风排出效率，减轻玻璃中部和边缘冷却不均匀的情况，提供一种非等间距冷却风栅。The technical problem to be solved by the present invention is to improve the hot air exhaust efficiency of the cooling section of the cooling air grid after the glass is taken out of the furnace, reduce the uneven cooling of the middle and edge of the glass, and provide a non-uniformly spaced cooling air grid.
本发明为解决上述技术问题所采用的技术方案是：一种非等间距冷却风栅，包括设置在玻璃输送辊道上方和下方的风栅组，风栅组中沿输送辊道输送方向间隔分布有多个朝向输送辊道的吹风嘴，所述的风栅组在输送辊道输送方向上具有多个冷却风区，每个冷却风区的吹风嘴具有相同的风压，在衔接玻璃加热炉的一个冷却风区中，与之相对的输送辊道采用非等间距的输送辊排布方式，靠近输送辊道输出方向的一端具有比另一端更大的辊间距，与该段输送辊道相对的吹风嘴同样采用非等间距的排布方式，使靠近输送辊道输出方向一端的吹风嘴与靠近输入方向一端的吹风嘴相比具有相同的风压以及更大的分布间距，在玻璃输送方向上形成不同的气流密度分布。The technical solution adopted by the present invention to solve the above technical problems is: a non-uniformly spaced cooling air grid, including an air grid group arranged above and below a glass conveying roller, wherein a plurality of blowing nozzles facing the conveying roller are spaced apart and distributed along the conveying direction of the conveying roller in the air grid group, the air grid group has a plurality of cooling air zones in the conveying direction of the conveying roller, and the blowing nozzles in each cooling air zone have the same wind pressure. In a cooling air zone connected to a glass heating furnace, the conveying roller opposite thereto adopts a non-uniformly spaced conveying roller arrangement mode, and the end close to the output direction of the conveying roller has a larger roller spacing than the other end. The blowing nozzles opposite to this section of the conveying roller also adopt a non-uniformly spaced arrangement mode, so that the blowing nozzles close to one end of the output direction of the conveying roller have the same wind pressure and a larger distribution spacing compared with the blowing nozzles close to one end of the input direction, thereby forming different airflow density distributions in the glass conveying direction.
进一步地，所述吹风嘴的位置与输送辊道中相邻输送辊的间隙相对。Furthermore, the position of the blowing nozzle is opposite to the gap between adjacent conveying rollers in the conveying roller table.
进一步地，所述输送辊道上方和下方的吹风嘴上下对称布置。Furthermore, the blowing nozzles above and below the conveying roller are arranged symmetrically up and down.
进一步地，在一个冷却风区中，与之相对的输送辊道分为多个分段，靠近输送辊道输出方向一端的分段具有比另一端的分段更大的辊间距。Furthermore, in a cooling air zone, the conveying roller conveyor opposite thereto is divided into a plurality of sections, and the section close to one end of the conveying roller conveyor in the output direction has a larger roller spacing than the section at the other end.
进一步地，输送辊道同一分段中的输送辊之间具有相同的辊间距。Furthermore, the conveying rollers in the same section of the conveying roller conveyor have the same roller spacing.
进一步地，输送辊道的多个分段中，部分分段中的输送辊之间具有相同的辊间距，另一部分分段中的输送辊采用非等间距排布，且靠近输送辊道输出方向的一端具有比另一端更大的辊间距。Furthermore, in the multiple segments of the conveyor roller, the conveyor rollers in some segments have the same roller spacing, and the conveyor rollers in other segments are arranged with non-uniform spacing, and the end close to the output direction of the conveyor roller has a larger roller spacing than the other end.
进一步地，在一个冷却风区中，输送辊的分布间距从输送辊道输入端到输出端递增。Furthermore, in a cooling air zone, the distribution spacing of the conveying rollers increases from the input end to the output end of the conveying roller table.
进一步地，所述输送辊的分布间距按照规律依次递增，或无规律的逐步递增。Furthermore, the distribution spacing of the conveying rollers increases in sequence according to a regular pattern, or increases step by step without a regular pattern.
进一步地，在输送辊道上方的风栅组中，相邻吹风嘴之间设有压风板。Furthermore, in the wind grid group above the conveying roller, air pressure plates are provided between adjacent blowing nozzles.
进一步地，所述压风板的尺寸与相邻吹风嘴之间的间距相适应。Furthermore, the size of the air pressure plate is adapted to the spacing between adjacent blowing nozzles.
本发明的有益效果是：将同一风压的冷却风区中的输送辊和风嘴设置为非等间距排布，在以较小的辊间距满足玻璃出炉需求的同时，增大该冷却风区中后续吹风嘴的间距，提高热风排出效率。吹风嘴相同风压而不同分布间距的布置方式使玻璃输送方向上形成不同的气流密度分布，进一步增强了从玻璃反射回的热风的流动和排出效率。该结构方式既不影响玻璃在输送方向上的冷却均匀性，又降低了玻璃宽度方向上中部和边缘的冷却速度差异，提高了钢化玻璃的质量。The beneficial effect of the present invention is that the conveying rollers and air nozzles in the cooling air zone with the same air pressure are arranged in non-uniform spacing, and while the glass discharge requirements are met with a smaller roller spacing, the spacing of subsequent air nozzles in the cooling air zone is increased to improve the hot air discharge efficiency. The arrangement of the air nozzles with the same air pressure but different distribution spacing forms different air flow density distributions in the glass conveying direction, further enhancing the flow and discharge efficiency of the hot air reflected from the glass. This structural method does not affect the cooling uniformity of the glass in the conveying direction, and reduces the difference in cooling speed between the middle and the edge in the width direction of the glass, thereby improving the quality of tempered glass.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明实施例1的结构示意图。FIG1 is a schematic structural diagram of embodiment 1 of the present invention.
图2是本发明实施例2的结构示意图。FIG. 2 is a schematic diagram of the structure of Embodiment 2 of the present invention.
图中标记：1.加热炉，2.吹风嘴，3. 压风板，4.玻璃，5. 输送辊道。L1和L2表示不同的分段，L3表示两个输送辊的间距。Markings in the figure: 1. Heating furnace, 2. Blowing nozzle, 3. Air pressure plate, 4. Glass, 5. Conveying roller. L1 and L2 represent different sections, and L3 represents the distance between two conveying rollers.
具体实施方式DETAILED DESCRIPTION
以下结合附图及具体实施方式对本发明的技术方案进行清楚、完整的说明。下面实施例所列出的具体内容不限于权利要求记载的技术方案要解决的技术问题所必须的技术特征。同时，所述列举是实施例仅仅是本发明的一部分，而不是全部实施例。The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. The specific contents listed in the following embodiments are not limited to the technical features necessary for the technical problems to be solved by the technical solutions recorded in the claims. At the same time, the enumerated embodiments are only part of the present invention, not all embodiments.
如图1和2所示，玻璃的冷却风栅包括上风栅组和下风栅组，分别设置在玻璃的输送辊道5上方和下方，用于向玻璃上下表面吹风冷却。上风栅组和下风栅组中，沿输送辊道5输送方向间隔分布有多个吹风嘴2。吹风嘴2同样间隔分布，其设置位置与输送辊道5中相邻输送辊之间的间隙相对，通常为相邻输送辊之间的中心位置。吹风嘴2朝向输送辊道5，用于向玻璃表面吹风。上风栅组和下风栅组中的吹风嘴通常是上下对称布置的，上下设置位置相对，布置间隔相同。但根据实际需求，也可以相应调整改变。As shown in Figures 1 and 2, the cooling air grid of the glass includes an upper air grid group and a lower air grid group, which are respectively arranged above and below the conveying roller 5 of the glass, and are used to blow air to the upper and lower surfaces of the glass for cooling. In the upper air grid group and the lower air grid group, a plurality of blowing nozzles 2 are spaced apart along the conveying direction of the conveying roller 5. The blowing nozzles 2 are also spaced apart, and their setting positions are opposite to the gaps between adjacent conveying rollers in the conveying roller 5, usually at the center position between adjacent conveying rollers. The blowing nozzles 2 face the conveying roller 5, and are used to blow air to the surface of the glass. The blowing nozzles in the upper air grid group and the lower air grid group are usually arranged symmetrically up and down, with the upper and lower setting positions being opposite and the arrangement intervals being the same. However, according to actual needs, they can also be adjusted and changed accordingly.
玻璃冷却风栅的风栅组在输送辊道5输送方向上根据需要可设置多个冷却风区，每个冷却风区的吹风嘴2具有相同的风压。各冷却风区的风压、风量等根据不同玻璃钢化工艺确定。图1和2所示实施例中，显示了一个与玻璃加热炉1相接的冷却风区，在该冷却风区中，各吹风嘴2具有相同的吹风风压。与该冷却风区位置相对应的输送辊道5采用非等间距的输送辊排布方式，临近加热炉1位置的辊间距较小，以满足加热软化后玻璃的出炉需求。靠近输送辊道5输出方向的一端具有比另一端更大的辊间距，以增大排风空间，利于从玻璃反射回的热风排散。与该段输送辊道5相对的吹风嘴2同样采用非等间距的排布方式。靠近输送辊道输出方向一端的吹风嘴之间的间距大于靠近输入方向一端的吹风嘴间距。在玻璃输送方向上，各吹风嘴具有相同的风压以及不同的分布间距，在玻璃输送方向上形成不同的气流密度分布，增强了从玻璃反射回的热风的流动和排出效率。The wind grid group of the glass cooling wind grid can be provided with multiple cooling wind zones as required in the conveying direction of the conveying roller 5, and the blowing nozzle 2 in each cooling wind zone has the same wind pressure. The wind pressure, air volume, etc. of each cooling wind zone are determined according to different glass tempering processes. In the embodiment shown in Figures 1 and 2, a cooling wind zone connected to the glass heating furnace 1 is shown, in which each blowing nozzle 2 has the same blowing wind pressure. The conveying roller 5 corresponding to the position of the cooling wind zone adopts a non-uniformly spaced conveying roller arrangement mode, and the roller spacing near the position of the heating furnace 1 is smaller to meet the requirements of the glass being discharged from the furnace after heating and softening. The end near the output direction of the conveying roller 5 has a larger roller spacing than the other end to increase the exhaust space, which is conducive to the dissipation of the hot air reflected from the glass. The blowing nozzles 2 opposite to this section of the conveying roller 5 also adopt a non-uniformly spaced arrangement mode. The spacing between the blowing nozzles near the output direction end of the conveying roller is greater than the spacing between the blowing nozzles near the input direction end. In the direction of glass conveying, each blowing nozzle has the same wind pressure and different distribution spacing, forming different air flow density distribution in the direction of glass conveying, thereby enhancing the flow and discharge efficiency of the hot air reflected from the glass.
在图1和2所示实施例中，输送辊道5上方的风栅组中相邻吹风嘴2之间设有压风板3，用于调整玻璃上部气流流动情况。压风板3的宽度尺寸根据相邻吹风嘴2之间的间距大小相应调整。In the embodiment shown in Figures 1 and 2, an air pressure plate 3 is provided between adjacent blowing nozzles 2 in the wind grid group above the conveying roller 5 to adjust the air flow above the glass. The width of the air pressure plate 3 is adjusted accordingly according to the spacing between adjacent blowing nozzles 2.
输送辊道5的辊间距和风栅组中的吹风嘴可以按照一定规律逐步增大，也可以是无规律的增大。具体取值要根据玻璃厚度、版面、所需风眼密度、回风区间等确定。例如，在一个冷却风区中，与之相对的输送辊道5分为多个分段，靠近输送辊道5输出方向一端的分段具有比另一端的分段更大的辊间距。而且同一分段中的输送辊之间具有相同的辊间距。例如图1所示实施例1，与加热炉1相接冷却风区中的输送辊道5分为L1、L2两个分段。其中分段L1的辊间距和吹风嘴2的间距较小，分段L2的辊间距和吹风嘴2的间距较大。玻璃4在加热炉1内经过加热到达软化点后输送出来，在输送辊道5的输送下进入冷却风栅的一个冷却风区，L1区间辊间距较小，用于承接从加热炉1输送出的加热后的玻璃4。L1区间较小的辊间距可保证玻璃4在从加热炉1输送出来的过程中运行稳定，不会产生波形弯曲现象。玻璃4在行进经过L1区间后，经过上部和下部的吹风嘴2冷却，玻璃4前端已有一定的强度，可在较大辊间距的输送辊道5上平稳无伤输送，此时进入L2较大辊间距段不会对玻璃4造成任何不良影响。L2较大辊间距段上下方吹风嘴2间距也相应比较大，在满足玻璃4钢化需求的风压、吹风量前提下，此处较大辊间距可以保证足够的回风空间，使吹到玻璃4表面的冷却风可以顺利排到风栅外部，既可满足玻璃4均匀冷却的要求，也可减少冷却系统能量损耗，提高能源利用率。The roller spacing of the conveyor roller 5 and the blowing nozzles in the wind grid group can be gradually increased according to a certain rule, or they can be increased irregularly. The specific value should be determined according to the glass thickness, layout, required wind eye density, return air interval, etc. For example, in a cooling air zone, the conveyor roller 5 opposite thereto is divided into multiple sections, and the section close to one end of the output direction of the conveyor roller 5 has a larger roller spacing than the section at the other end. And the conveyor rollers in the same section have the same roller spacing. For example, in embodiment 1 shown in Figure 1, the conveyor roller 5 in the cooling air zone connected to the heating furnace 1 is divided into two sections, L1 and L2. Among them, the roller spacing of section L1 and the spacing of the blowing nozzle 2 are smaller, and the roller spacing of section L2 and the spacing of the blowing nozzle 2 are larger. After the glass 4 is heated in the heating furnace 1 and reaches the softening point, it is transported out and enters a cooling air zone of the cooling wind grid under the transportation of the conveyor roller 5. The roller spacing in the L1 section is smaller, which is used to receive the heated glass 4 transported from the heating furnace 1. The smaller roller spacing in the L1 section can ensure that the glass 4 runs stably during the process of being transported out of the heating furnace 1, and no wave bending occurs. After the glass 4 passes through the L1 section, it is cooled by the upper and lower blowing nozzles 2. The front end of the glass 4 has a certain strength and can be smoothly transported on the conveying roller 5 with a larger roller spacing. At this time, entering the L2 section with a larger roller spacing will not cause any adverse effects on the glass 4. The spacing between the upper and lower blowing nozzles 2 in the L2 section with a larger roller spacing is also relatively large. Under the premise of meeting the wind pressure and blowing volume required for the tempering of the glass 4, the larger roller spacing here can ensure sufficient return air space, so that the cooling wind blown onto the surface of the glass 4 can be smoothly discharged to the outside of the wind grid, which can not only meet the requirements for uniform cooling of the glass 4, but also reduce the energy loss of the cooling system and improve energy utilization.
图2所示实施例2中，L3表示输送辊道5中两个输送辊的间距。从靠近加热炉1的第一根输送辊，到远离加热炉1的最后一根输送辊，辊道间距递增变化。该变化满足逐步冷却硬化的玻璃输送需求。所述递增变化可以是有规律的递增数列，递增量相同或者按照一定规律的递增量逐步增加。所述递增变化也可以是无规律的，递增量无规律。In the embodiment 2 shown in FIG2 , L3 represents the distance between two conveyor rollers in the conveyor roller 5. From the first conveyor roller close to the heating furnace 1 to the last conveyor roller far from the heating furnace 1, the roller distance changes incrementally. This change meets the demand for gradually cooling and hardening glass conveying. The incremental change can be a regular incremental series, with the same incremental amount or gradually increasing according to a certain regular incremental amount. The incremental change can also be irregular, with an irregular incremental amount.
在一个无附图的实施例中，可以将图1和图2实施例的布置方式结合，在一个冷却风区中，与之相对的输送辊道5分为多个分段。其中部分分段参照图1实施例，输送辊之间具有相同的辊间距，且靠近输送辊道5输出方向一端的分段具有比另一端的分段更大的辊间距。另一部分分段参照图2实施例，输送辊采用非等间距排布，且靠近输送辊道输出方向的一端具有比另一端更大的辊间距。In an embodiment without drawings, the arrangement of the embodiments of FIG. 1 and FIG. 2 can be combined, and in a cooling air zone, the conveying roller 5 opposite thereto is divided into a plurality of sections. Some of the sections refer to the embodiment of FIG. 1, and the conveying rollers have the same roller spacing, and the section near one end of the conveying roller 5 in the output direction has a larger roller spacing than the section at the other end. Another section refers to the embodiment of FIG. 2, and the conveying rollers are arranged with non-uniform spacing, and the end near the conveying roller in the output direction has a larger roller spacing than the other end.
本发明的玻璃冷却风栅与通常一个冷却风区中辊间距均匀布置的方式相比，钢化后玻璃的平整度和质量更好。经对比测试，同样钢化厚度为3.2mm，长2280mm、宽1150mm的玻璃，玻璃加热炉设定工艺参数相同，与加热炉相接的一个冷却分区长度为2900mm。该冷却分区中实施例采用非等间距布置输送辊道和吹风嘴，分两段布置，第一段长度630mm，辊间距90mm，第二段长度2200mm，辊间距100mm。对比例采用等间距布置输送辊道和吹风嘴，辊间距为90mm。该冷却分区后续设备和工艺，实施例和对比例均相同。经过玻璃钢化工艺生产，对比例钢化后的玻璃中部有轻微鼓包现象，本发明实施例钢化后的玻璃无鼓包，平整性、表面光学性能均优于对比例钢化后的玻璃，而应力值又可与对比例钢化后的玻璃相同，同时实施例能耗显著降低。表明，本发明玻璃冷却风栅的结构既不影响玻璃在输送方向上的冷却均匀性，又降低了玻璃宽度方向上中部和边缘的冷却速度差异，提高了钢化玻璃的质量。Compared with the usual method of uniformly arranging roller spacing in a cooling air zone, the glass cooling air grid of the present invention has better flatness and quality after tempering. According to comparative tests, for the same tempered glass with a thickness of 3.2mm, a length of 2280mm and a width of 1150mm, the glass heating furnace sets the same process parameters, and the length of a cooling zone connected to the heating furnace is 2900mm. In the cooling zone, the embodiment adopts non-equidistant arrangement of conveying rollers and blowing nozzles, which are arranged in two sections, the first section is 630mm long, the roller spacing is 90mm, and the second section is 2200mm long, and the roller spacing is 100mm. The comparative example adopts equidistant arrangement of conveying rollers and blowing nozzles, and the roller spacing is 90mm. The subsequent equipment and process of the cooling zone are the same in the embodiment and the comparative example. After the glass tempering process, there is a slight bulging phenomenon in the middle of the tempered glass of the comparative example, and the tempered glass of the embodiment of the present invention has no bulging, and the flatness and surface optical properties are better than the tempered glass of the comparative example, and the stress value can be the same as the tempered glass of the comparative example, and the energy consumption of the embodiment is significantly reduced. It is shown that the structure of the glass cooling air grille of the present invention does not affect the cooling uniformity of the glass in the conveying direction, but reduces the difference in cooling speed between the middle and the edge in the width direction of the glass, thereby improving the quality of the tempered glass.
以上对具体实施方式的说明只是用于帮助理解本发明的技术构思及其核心思想，尽管本文使用了特定的优选实施例对技术方案进行了描述和说明，但其不应理解为对本发明自身的限制。本领域技术人员在不脱离本发明技术构思的前提下，可对其在形式上和细节上做出各种变化。这些轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。The above description of the specific implementation mode is only used to help understand the technical concept and core idea of the present invention. Although the technical solution is described and illustrated using a specific preferred embodiment, it should not be understood as a limitation of the present invention itself. Those skilled in the art may make various changes in form and details without departing from the technical concept of the present invention. These easily conceived changes or substitutions should all be included in the protection scope of the present invention.
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