Title:
DISTRIBUTED OPTICAL FIBER-BASED MONITORING METHOD FOR PIPE HEAT TREATMENT TEMPERATURE
Document Type and Number:
WIPO Patent Application WO/2023/206817
Kind Code:
A1
Abstract:
A distributed optical fiber-based monitoring method for a pipe heat treatment temperature, relating to the field of temperature monitoring, and comprising: obtaining workpiece temperature information by using an optical fiber temperature sensor (S1); transmitting the workpiece temperature information to a heat treatment host (S2); formulating a heat treatment thermal cycle temperature curve by means of a heat treatment machine, and regulating and controlling a temperature (S3); establishing an abnormal heating feature database (S4); and establishing overrun fault early-warning and overrun delayed shutdown heat treatment functions inside the heat treatment machine (S5). The past single-point temperature measurement is upgraded to full-coverage temperature field measurement, so that the measurement coverage area is wide, part missing is avoided, a monitoring blind zone is eliminated, under-temperature and over-temperature regions are found in a timely manner, a basis is provided for effectively performing coping processing, and the temperature control precision of a workpiece region is greatly improved; moreover, a temperature field, actual heating and cooling curves, a cable voltage, a current parameter, and different pieces of operation data are recorded during the whole process, and the temperature curve is drawn for intelligent comparison and identification, such that remote monitoring of a heat treatment state, centralized management, fault tracing, and emergency termination are implemented.
Inventors:
XIONG WEI (CN)
JIANG BIN (CN)
LI LAICHUN (CN)
LI XIAOYAN (CN)
CHANG YIJUN (CN)
LEI PENG (CN)
ZHANG SHOUWEN (CN)
LIN SIYU (CN)
JIANG BIN (CN)
LI LAICHUN (CN)
LI XIAOYAN (CN)
CHANG YIJUN (CN)
LEI PENG (CN)
ZHANG SHOUWEN (CN)
LIN SIYU (CN)
Application Number:
PCT/CN2022/105127
Publication Date:
November 02, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
HUANENG ZHEJIANG ENERGY DEV CO LTD YUHUAN BRANCH (CN)
International Classes:
G01K11/32; G06F30/20
Domestic Patent References:
| WO2020160637A1 | 2020-08-13 |
Foreign References:
| CN114544028A | 2022-05-27 | |||
| CN102385402A | 2012-03-21 | |||
| CN114018429A | 2022-02-08 | |||
| CN101216702A | 2008-07-09 | |||
| CN111534680A | 2020-08-14 | |||
| CN113884214A | 2022-01-04 | |||
| CN215764654U | 2022-02-08 |
Attorney, Agent or Firm:
BEIJING RAINBOW XINGYUAN INTELLECTUAL PROPERTY LAW FIRM (CN)
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