US 11,754,535 B2
Ultrasonic in-situ automatic detection system for creep cracks on inner wall of hydrogen production furnace tube
Luowei Cao, Beijing (CN); Zhongtian Lyu, Beijing (CN); Yan Lyu, Beijing (CN); Cunfu He, Beijing (CN); Guorong Song, Beijing (CN); and Zhiyuan Han, Beijing (CN)
Assigned to China Special Equipment Inspection and Research Institute, Beijing (CN); and Beijing University of Technology, Beijing (CN)
Filed by China Special Equipment inspection and Research Institute, Beijing (CN); and Beijing University of Technology, Beijing (CN)
Filed on Jul. 29, 2021, as Appl. No. 17/388,266.
Claims priority of application No. 202011105828.5 (CN), filed on Oct. 16, 2020.
Prior Publication US 2022/0120713 A1, Apr. 21, 2022
Int. Cl. G01N 29/265 (2006.01); G01N 29/04 (2006.01); G01N 29/24 (2006.01); G08C 17/02 (2006.01); H04L 5/14 (2006.01); G01N 29/34 (2006.01); H04W 84/12 (2009.01); G01N 29/22 (2006.01)
CPC G01N 29/265 (2013.01) [G01N 29/04 (2013.01); G01N 29/2437 (2013.01); G01N 29/2481 (2013.01); G01N 29/343 (2013.01); G01N 29/348 (2013.01); G08C 17/02 (2013.01); H04L 5/14 (2013.01); G01N 29/225 (2013.01); G01N 2291/023 (2013.01); G01N 2291/0234 (2013.01); G01N 2291/0258 (2013.01); G01N 2291/0289 (2013.01); G01N 2291/044 (2013.01); G01N 2291/106 (2013.01); G01N 2291/26 (2013.01); G01N 2291/2634 (2013.01); H04W 84/12 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An ultrasonic in-situ automatic detection system for creep cracks on an inner wall of a hydrogen production furnace tube, the detection system comprising:
a computer,
a multi-channel ultrasonic system control circuit configured to communicate with the computer using Transmission Control Protocol (TCP) full duplex signal transmissions through a Wi-Fi wireless network,
a motor driver board configured to communicate bidirectionally with the multi-channel ultrasonic system control circuit,
a coreless motor and a rotating motor, both configured to communicate bidirectionally with the motor driver board;
a tube crawling machine mechanically connected with the coreless motor,
a multi-channel piezoelectric transducer detection ring configured to communicate bidirectionally with the multi-channel ultrasonic system control circuit and mechanically connected with the rotating motor;
wherein the multi-channel ultrasonic system control circuit, the motor driver board, the multi-channel piezoelectric transducer detection ring and a motor system are mounted on the tube crawling machine,
wherein the computer is within a range of 50 m from the hydrogen production furnace tube;
wherein the computer is configured to wirelessly send detection instructions and store, process and display echo data; and
wherein the detection instructions comprise control of an excitation channel frequency, a repetition frequency, gain, a sampling rate, a sampling duration, a motor speed, an acceleration, a deceleration and a pulse number.