Title:
DISTRIBUTED OPTICAL FIBER TEMPERATURE MEASUREMENT SYSTEM FOR HIGH-TEMPERATURE PIPELINE GROUP
Document Type and Number:
WIPO Patent Application WO/2023/173609
Kind Code:
A1
Abstract:
A distributed optical fiber temperature measurement system for a high-temperature pipeline group, comprising an upper computer, a data transmission line, a laser emitting apparatus, a wavelength division multiplexing device, a photoelectric detector, a high-speed data acquisition card, and sensing temperature-measurement optical fibers (2). A stainless steel capillary tube (6) is provided outside each sensing temperature-measurement optical fiber (2); the optical fibers (2) are shaped by optical fiber shaping frames (5) to form a single-optical-fiber multi-path back-and-forth zigzag structural form matched with a plurality of high-temperature pipelines (1) in a single row; the back-and-forth zigzag form comprises a plurality of columns of straight line sections (21) and arc connecting sections (22) between every two adjacent columns of straight line sections; the straight line sections (21) are shaped to be straight and fixed in length by the optical fiber shaping frames (5), the straight line sections are equal in length, and the arc connecting sections (22) are equal in length; and the sensing temperature-measurement optical fibers (2) are communicated from one end of the multi-path back-and-forth zigzag form to the other end, and the straight line sections (21) are fixed on different parallel high-temperature pipelines (1) one by one by means of the stainless steel capillary tubes (6) on the outer sides of the straight line sections. The present invention has higher measurement accuracy for the high-temperature pipeline group and is convenient to mount.
More Like This:
Inventors:
YE WEI (CN)
XU ZHENGGUO (CN)
ZHOU KEJIANG (CN)
XU ZHENGGUO (CN)
ZHOU KEJIANG (CN)
Application Number:
PCT/CN2022/098871
Publication Date:
September 21, 2023
Filing Date:
June 15, 2022
Export Citation:
Assignee:
HUZHOU INSTITUTE OF ZHEJIANG UNIV (CN)
International Classes:
G01K11/32
Foreign References:
| CN114323335A | 2022-04-12 | |||
| CN104101447A | 2014-10-15 | |||
| CN113280863A | 2021-08-20 | |||
| CN110954242A | 2020-04-03 | |||
| CN211401477U | 2020-09-01 | |||
| CN212206410U | 2020-12-22 | |||
| CN110763363A | 2020-02-07 | |||
| CN109580039A | 2019-04-05 | |||
| CN102306019A | 2012-01-04 | |||
| CN105371880A | 2016-03-02 | |||
| CN110095201A | 2019-08-06 | |||
| CN101799430A | 2010-08-11 | |||
| JP2007178349A | 2007-07-12 |
Attorney, Agent or Firm:
ZHEJIANG HANGZHOU JINTONG PATENT AGENCY CO., LTD. (CN)
Download PDF: