CAJ | 학술논문

本文采用可调谐二极管激光吸收光谱法(TDLAS)的波长调制技术，实现气体温度的测量。考虑到H2O在大气中、工业生产中普遍存在，我们选用了H2O作为测量气体温度的载体，利用H2O在1397 nm附近谱线对，通过分析二次谐波信号的峰-峰比值与不同温度的关系，获得温度测量值，并通过数值拟合，分析了在400～1100℃温度范围内系统测量的温度误差(<0.113%)。结合现场结构，该设备能够用于工业生成过程中的温度监测，设备性能远优于目前使用的仪器，能够为燃烧锅炉等生产设备提供准确的温度监控数据。
본문채용가조해이겁관격광흡수광보법(TDLAS)적파장조제기술，실현기체온도적측량。고필도H2O재대기중、공업생산중보편존재，아문선용료H2O작위측량기체온도적재체，이용H2O재1397 nm부근보선대，통과분석이차해파신호적봉-봉비치여불동온도적관계，획득온도측량치，병통과수치의합，분석료재400～1100℃온도범위내계통측량적온도오차(<0.113%)。결합현장결구，해설비능구용우공업생성과정중적온도감측，설비성능원우우목전사용적의기，능구위연소과로등생산설비제공준학적온도감공수거。
The gas temperature measurement was achieved by using wavelength-modulation spectroscopy technique based on the Tunable Diode Laser Absorption Spectroscopy (TDLAS). Considering that H2O exists in the atmosphere and industrial production, we choose H2O as the carrier gas of temperature measurements. Using the absorption lines near 1 397 nm, according to analysis the relationship between the second harmonic signal peak - peak ratio and temperature, temperature measurements were obtained. Experimental results show that the max error does not exceed 0.113% within the temperature range of 400 ~1 000℃. Combined with the special structure, the device can be used for temperature monitoring of industrial production process. The range of temperature monitoring instrument, the monitoring precision and accuracy is far better than the currently used. The temperature monitoring can provide accurate data for the production equipment of boiler combustion, so as to realize the production efficiency and accurate control, and achieve the ultimate goal of energy saving and emission reduction.