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A METHOD OF MEASURING THE TEMPERATURE OF A GAS IN A SPACE BY MEANS OF A PYROMETER, AND A PYROMETER
A METHOD OF MEASURING THE TEMPERATURE OF A GAS IN A SPACE BY MEANS OF A PYROMETER, AND A PYROMETER
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机译：用热释光仪测量空间气体温度的方法及热释光仪
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摘要
In measurement of the temperature of a gas in a space by means of a pyrometer (10) having a thermal sensor, especially a thermocouple (23), for generating a gas temperature dependent, electrical signal, and a radiation screen (11, 12, 16, 17, 27), the gas is passed from the space via a gas inlet (13, 14) past the thermocouple (23) and on to a gas outlet (21) without gas being sucked from the space, as the gas flow is generated by the generation of a relative low pressure at the gas outlet (21) by discharging pressurized air from a nozzle (20) which is preferably arranged at the radiation screen of the pyrometer. The pressurized air is supplied from a pressurized air source arranged outside the space and is passed to the nozzle (20) via a pressurized air conduit (19). In such a pyrometer gas temperatures in the order of 900-1200 DEG C may be measured continuously for an even extremely long period (more than 1000 hours) merely by generating a flow velocity past the thermocouple in the order of 30-50 m/s by the supply of an amount of pressurized air in the order of 15-100 l/min. The components of the radiation screen are made of heat resistant materials, such as high temperature resistant stainless steel, quartz glass or a ceramic material.
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机译：在借助于高温计（10）测量空间中的气体温度时，该高温计具有热传感器，特别是热电偶（23），用于产生与气体温度有关的电信号，并具有辐射屏（11、12）如图16、17、27所示），气体从气体空间通过进气口（13、14）穿过热电偶（23）到达气体出口（21），而气体不会从空间中被吸入通过从优选设置在高温计的辐射屏上的喷嘴（20）排出压缩空气，通过在气体出口（21）处产生相对较低的压力来产生废气。压缩空气从设置在空间外部的压缩空气源供应，并通过压缩空气导管（19）传递到喷嘴（20）。在这样的高温计中，仅通过产生经过热电偶的流速大约为30-50 m / s，就可以连续测量甚至在非常长的时间内（超过1000小时）大约900-1200℃的气体温度。通过以15-100 l / min的量提供压缩空气。辐射屏的组件由耐热材料制成，例如耐高温不锈钢，石英玻璃或陶瓷材料。
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