共查询到18条相似文献,搜索用时 93 毫秒
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王健 《硫磷设计与粉体工程》2005,(6):29-31
针对硫化氢焚烧炉炉膛温度高及温度控制的严格要求,介绍了红外高温测温仪的特点、功能及其工作原理,比较了它与热电偶测温的优缺点,实践证明红外高温测温仪具有温度测量精度高、使用寿命长、性能稳定等特点。 相似文献
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本文简要介绍了红外测温原理,并就红外测温技术在玻璃窑炉上的应用作了初步探讨,对红外测温仪、光学高温计、辐射高温计和表面温度计测得的窑炉内火焰、玻璃液和窑体外表面等温度值进行了分析比较。结果表明,红外测温仪具有直观、灵敏、测量值准确、稳定、可作远距离和动态测量等特点,因此它在玻璃窑炉上有着广阔的发展前景。但被测对象高温热发射率值的确定需作进一步研究。 相似文献
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介绍了红外测温仪在焦炉上的应用,通过在线自动测量迅速反应焦饼温度,对焦炉的热工调节进行指导,同时减轻了操作强度,提高了测量精度,改善了热工调节。 相似文献
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讲叙了聚酯生产中切粒设备上股条监测目前最普遍的几种方式,分析了这几种方式的缺点,提出了利用红外测温的方式来监测股条状态。介绍了红外测温的原理、方式的可行性及优点,提出了红外测温装置的控制方案。 相似文献
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本文根据目前化工生产过程中,大规格、高转速搪玻璃搅拌容器上的温度计套固定端部R处经常发生爆瓷和断裂的问题,对现行标准搪玻璃温度计套固定端的结构进行了分析。指出现行标准型式存在的问题,同时提出了改进后搪玻璃温度计套固定端的新结构,以供业内同行在设计选用时参考。 相似文献
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硫系玻璃具有折射率温度系数低、透过谱段范围宽、光学均匀性好、性能可调和易于加工等优点,被视作新一代温度自适应红外热成像系统用核心元件材料,在红外追踪、红外制导、安防监控、辅助驾驶等多个领域具有广阔的应用前景。为了解决极端服役环境对红外材料的需求,硫系玻璃制备技术研究主要涉及以下三个方面:(1)设计开发大尺寸高纯硫系玻璃的制备方法;(2)进行气氛熔制技术探索研究以解决大尺寸硫系玻璃的工程应用需求;(3)将高能球磨、热压等方式引入到硫系玻璃陶瓷制备上,拓展红外光学材料可选范围,提升硫系玻璃极端环境适应能力。本文基于上述三个方面综述了红外硫系玻璃制备技术的研究进展。 相似文献
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Peak positions of silica structural bands, both in infrared absorption and reflection modes, were used earlier to measure the fictive temperature of silica glass. In the present study, the method was applied to determine the fictive temperatures of a soda-lime silicate glass. For the silicate glass, the IR absorption spectra produced a broad structural band which made the precise determination of peak position difficult, and only the IR reflection band was used. Equilibrium peak positions of ∼1056 cm−1 IR band, due to Si-O stretching, were found to be directly correlated with the fictive temperature of the soda-lime silicate glass. The soda-lime glass exhibited an opposite dependence of the IR band position on the glass fictive temperature as compared to silica glass. 相似文献
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Ajit Sadana 《Chemical Engineering Communications》1987,49(4):291-300
During the forming of glass articles by a variety of different processes, it is important to be able to accurately measure the temperature of the glass. Also, to be practical for production applications, the temperature measuring technique must not interfere with the process or disturb the product. Only infrared radiation pyrometry is capable of meeting these requirements.
Narrow-band radiation pyrometers are non-contacting sensors that (depending on the operating wavelength) either measure the surface temperature or some weighted average of the surface and internal temperatures of semi-transparent glass objects without significantly affecting the product or its heat exchange with the environment. When attempting pyrometer temperature measurements on glass, it must be recognized that the incident radiation originates not only from the surface, but also from the interior which may be at a different temperature. However, a knowledge of the directional spectral volume emissive power of the glass object can be used to determine a "best" operating wavelength for the desired results and/or to help interpret indicated temperature measurements.
A sophisticated mathematical model of coupled radiation and conduction heat transfer in glass has been formulated to calculate the apparent temperature indicated by a hypothetical narrow-band infrared pyrometer receiving radiation emitted by glass plates of specified thickness and non-uniform temperature distribution. These results are presented for a wide range of operating wavelengths, covering the three distinct regions of the transmission spectrum of a typical soda-lime-silica glass. 相似文献
Narrow-band radiation pyrometers are non-contacting sensors that (depending on the operating wavelength) either measure the surface temperature or some weighted average of the surface and internal temperatures of semi-transparent glass objects without significantly affecting the product or its heat exchange with the environment. When attempting pyrometer temperature measurements on glass, it must be recognized that the incident radiation originates not only from the surface, but also from the interior which may be at a different temperature. However, a knowledge of the directional spectral volume emissive power of the glass object can be used to determine a "best" operating wavelength for the desired results and/or to help interpret indicated temperature measurements.
A sophisticated mathematical model of coupled radiation and conduction heat transfer in glass has been formulated to calculate the apparent temperature indicated by a hypothetical narrow-band infrared pyrometer receiving radiation emitted by glass plates of specified thickness and non-uniform temperature distribution. These results are presented for a wide range of operating wavelengths, covering the three distinct regions of the transmission spectrum of a typical soda-lime-silica glass. 相似文献
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为了研究Ge-Sb-Se-Te四元硫系玻璃制备工艺和Ti丝除杂机理,通过盐浴冷却技术制备了Ge20Sb10Se65Te5硫系玻璃,并测试了其结构、红外透过率、玻璃特征温度和热膨胀系数,采用Kissinger和Augis-Bennett理论对Ge20Sb10Se65Te5玻璃的结晶活化能进行了分析研究。结果表明,所制试样为非晶结构,玻璃化转变温度Tg=531 K(升温速率为10 K/min),Kissinger和Augis-Bennett理论得到的结晶活化能分别为115.74 kJ/mol和131.53 kJ/mol。通过Ti丝除杂有效去除了氧杂质,得到的玻璃试样红外透过性能良好,并最后检测了Ti丝表面反应后的残留物质。热膨胀分析发现升温速率加快,玻璃在屈服点和软化点的膨胀量增加,这个结果解释了试管中的低温样品在重新加热时,升温过快石英试管经常裂开的原因。 相似文献