制作微通道板的玻璃纤维拉丝炉温度场研究

丛晓庆; 孙建宁; 张珈玮; 刘文伟; 张正君; 徐伟; 钱琳; 李婧雯; 孙赛林; 阮凯; 林正

制作微通道板的玻璃纤维拉丝炉温度场研究

北方夜视技术股份有限公司南京分公司，江苏南京 211106

详细信息

作者简介:
丛晓庆（1977-），女，高级工程师，主要研究方向为微通道板性能改进与技术开发。E-mail：cong_stone@163.com

中图分类号: TQ171.6
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- 被引次数: 0
出版历程
- 收稿日期: 2020-07-28
- 修回日期: 2020-10-17
- 刊出日期: 2021-05-22

Temperature Field of Glass Fiber-Drawing Furnaces for Microchannel Plate Fabrication

Nanjing Branch, North Night Vision Technology Co. Ltd, Nanjing 211106, China

摘要

摘要: 制作微通道板的玻璃纤维需要经过拉丝炉拉制而成，拉丝炉的温度场分布直接影响丝径的均匀性，而目前缺乏制作微通道板的玻璃纤维拉丝炉的理论研究，依靠经验所设计的拉丝炉性能差异较大，为此本文根据拉丝炉的实际结构，构建对应的三维模型，利用热传递理论对模型进行分析，重点研究炉芯中心位置、加热温度均匀性和保温层均匀性对拉丝炉内部温度场的影响，根据理论分析结果对微通道板拉丝炉的改进给出了3个方面的建议。
- 微通道板 /
- 拉丝炉 /
- 模型 /
- 温度场
Abstract: The glass fiber used in microchannel plate fabrication must be drawn in drawing furnaces. The temperature field distribution of the drawing furnace directly affects the uniformity of the wire diameter. Owing to the lack of theoretical research on glass fiber-drawing furnaces for microchannel plate fabrication, the designed drawing furnace and performance differences are based on experience. Based on the actual structure of a drawing furnace, this study aims to develop its corresponding 3D model on the basis of the theory of heat transfer analysis and to investigate the effects of the center of the furnace core, the uniformity of the heat insulation layer, and the drawing furnace temperature uniformity on the internal temperature field. Based on the theoretical analysis results, three suggestions are given to improve the drawing furnace for making micro channel plate.
- micro channel plate /
- drawing furnace /
- model /
- temperature field

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图 1 拉丝炉实物图

Figure 1. Photo of drawing furnace

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图 2 拉丝炉三维几何模型

Figure 2. Three-dimensional geometrical modeling of drawing furnace

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图 3 拉丝炉二维截面示意图

Figure 3. Two-dimensional section diagram of drawing furnace

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图 4 保温层等分模型图

Figure 4. Insulation layer isometric model

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图 5 主腔温度场分布图

Figure 5. Temperature distribution map of main cavity

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图 6 主腔空气层对应的温度场分布和等温线分布图

Figure 6. The temperature field distribution and isotherm distribution map corresponding to the air layer of the main cavity

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图 7 副腔空气层对应的温度场分布图和等温线分布图

Figure 7. The temperature field distribution map and isotherm distribution map corresponding to the air layer of the auxiliary cavity

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图 8 主腔空气层对应的温度场分布和等温线分布图

Figure 8. The temperature field distribution and isotherm distribution map corresponding to the air layer of the main cavity

下载: 全尺寸图片幻灯片

图 9 主腔空气层对应的温度场分布和等温线分布图

Figure 9. The temperature field distribution and isotherm distribution map corresponding to the air layer of the main cavity

下载: 全尺寸图片幻灯片

图 10 主腔空气层对应的温度场分布图和等温线分布图

Figure 10. The temperature field distribution map and isotherm distribution map corresponding to the air layer of the main cavity

下载: 全尺寸图片幻灯片

表 1 拉丝炉构成部件材料参数

Table 1. Material parameters of wire drawing furnacecomponents

Order	Name	Heat conductivity coefficient
1	Aluminabrick	0.4 W/(m²·K)
2	Quartz	1.1 W/(m²·K)
3	SiC	86.3 W/(m²·K)
4	Ly12	100 W/(m²·K)
5	Aluminafiber	0.07 W/(m²·K)
6	Air	12.5 W/(m²·℃)

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参考文献(8)

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