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超導(dǎo)直流能源管道的混合工質(zhì)溫區(qū)溫度測(cè)量研究

來(lái)源：電工電氣發(fā)布時(shí)間：2024-10-09 09:09 瀏覽次數(shù)：96

超導(dǎo)直流能源管道的混合工質(zhì)溫區(qū)溫度測(cè)量研究

朱紅亮^1,2，夏芳敏^1,2

(1 富通集團(tuán)(天津)超導(dǎo)技術(shù)應(yīng)用有限公司，天津 300384；

2 天津市超導(dǎo)電纜應(yīng)用重點(diǎn)實(shí)驗(yàn)室，天津 300384)

摘要：為滿(mǎn)足超導(dǎo)直流能源管道精準(zhǔn)的測(cè)溫需求，保證超導(dǎo)電力和液化天然氣混合輸運(yùn)的目標(biāo)，設(shè)計(jì)了一種低溫工況平臺(tái)，在混合工質(zhì)溫區(qū)(85～90 K)對(duì)光纖光柵傳感器進(jìn)行溫度傳感特性研究，通過(guò) PT100 鉑電阻對(duì)光纖光柵進(jìn)行準(zhǔn)確的溫度標(biāo)定，所測(cè)溫度最大值偏差小于0.1K。搭建了 10 m 超導(dǎo)能源管道樣機(jī)，實(shí)測(cè)在不同通流情況下，PT100 鉑電阻測(cè)溫波動(dòng)較大，而光纖光柵測(cè)溫不受影響。在突然升溫過(guò)程中，PT100 鉑電阻測(cè)溫平均響應(yīng)時(shí)間為2.43 s，光纖光柵傳感器測(cè)溫響應(yīng)時(shí)間為0.47 s。

關(guān)鍵詞： 超導(dǎo)；混合工質(zhì)；光纖光柵；標(biāo)定

中圖分類(lèi)號(hào)：TK311 ；TM26 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2024)09-0044-07

Research on Temperature Measurement in Mixed Working Fluid

Temperature Region of Superconducting DC Energy Pipelines

ZHU Hong-liang^{1, 2}, XIA Fang-min^{1, 2}

（1 Futong Group (Tianjin) Superconductor Technologies and Applications Co., Ltd, Tianjin 300384, China;

2 Tianjin Key Laboratory of Superconducting Cable Applications, Tianjin 300384, China）

Abstract: In order to meet the needs of accurate temperature measurement of superconducting DC energy pipelines, and to ensure the goal of hybrid transport of superconducting power and liquefied natural gas. In this paper, a low-temperature platform is designed to study the temperature sensing characteristics of the fiber grating sensor in the temperature region of mixed working fluid (85～90 K), and the temperature of the fiber grating is accurately calibrated by PT100 platinum resistance, and the maximum deviation of the measured temperature deviation is less than 0.1 K. Furthermore, a 10 m prototype of a superconducting energy pipeline is constructed and tested under various flow conditions. The results show that the temperature measurement by PT100 platinum resistance experiences significant fluctuations, whereas the fiber grating sensors remain unaffected. In the process of sudden temperature rise, the average response time of PT100 platinum resistance is 2.43 s, and that of fiber grating sensor is 0.47 s.

Key words: superconducting; mixed working fluid; fiber grating; calibration

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超導(dǎo)直流能源管道的混合工質(zhì)溫區(qū)溫度測(cè)量研究