CN103257183A - Ultrasonic detection method for steam turbine rotor shaft equipped with center hole - Google Patents

Ultrasonic detection method for steam turbine rotor shaft equipped with center hole Download PDF

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Publication number
CN103257183A
CN103257183A CN2013101095095A CN201310109509A CN103257183A CN 103257183 A CN103257183 A CN 103257183A CN 2013101095095 A CN2013101095095 A CN 2013101095095A CN 201310109509 A CN201310109509 A CN 201310109509A CN 103257183 A CN103257183 A CN 103257183A
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China
Prior art keywords
array
cancave
probe
turbine rotor
scanning
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CN2013101095095A
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Chinese (zh)
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CN103257183B (en
Inventor
郝晓军
刘长福
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd, Hebei Electric Power Construction Adjustment Test Institute filed Critical State Grid Corp of China SGCC
Priority to CN201310109509.5A priority Critical patent/CN103257183B/en
Publication of CN103257183A publication Critical patent/CN103257183A/en
Application granted granted Critical
Publication of CN103257183B publication Critical patent/CN103257183B/en
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Abstract

The invention discloses an ultrasonic detection method for a steam turbine rotor shaft equipped with a center hole. The method employs a 360-degree cancave array probe connected to a phased array ultrasonic flaw detector so as to detect the steam turbine rotor shaft equipped with a center hole. The method uses portable and convenient equipment, and can quickly and effectively carry out non-destructive testing on the steam turbine rotor shaft equipped with a center hole.

Description

A kind of ultrasonic detection method of the steam turbine rotor shaft with center pit
Technical field
The present invention relates to a kind of ultrasonic detection method of the steam turbine rotor shaft with center pit.
Technical background
DL/T438-2009 " fuel-burning power plant alloying technology supervision rules " 12.2.4 bar requires: the 1st A level maintenance behind unit operation 100,000 h, and look status of equipment the rotor macro-axis is carried out nondestructive examination; The turbine rotor of band center pit can adopt methods such as endoscope, ultrasound wave, eddy current that rotor is tested.These rules have clearly proposed the requirement of ultrasonic testing to the turbine rotor of band center pit.But the mechanical scanning of the many employings of the rotor of ultrasound examination band center pit at present, the equipment of controlling mechanical scanning is huge, takes time and effort in detection.Therefore the present invention proposes the method that phased array detects turbine rotor.
Summary of the invention
The invention provides a kind of ultrasonic detection method of the steam turbine rotor shaft with center pit, use this method can detect the turbine rotor of band center pit fast and effectively.
The present invention adopts following technical scheme:
A kind of ultrasonic detection method of the steam turbine rotor shaft with center pit comprises the steps:
(1) select phased-array ultrasonic defectoscope and cancave array probe, wherein cancave array probe is 360 ° of recessed battle arrays, and recessed battle array diameter is than the detected little 1 ~ 2mm of steam turbine rotor shaft center-hole diameter;
(2) cancave array probe is placed on the porch of armature spindle center pit, by couplant the arc surface of cancave array probe and center pit is fully contacted;
(3) the focusing rule of setting phased-array ultrasonic defectoscope is the one-dimensional linear scanning, carries out the electronics scanning of same depth along the probe circumferential position, when scanning 360 °, has namely finished the ultrasound examination of armature spindle detection segment;
(4) move cancave array probe along armature spindle center pit axial location, according to the checking method of step (2) and step (3) another section of armature spindle is carried out scanning; In the mobile cancave array probe process, the scrambler of phased-array ultrasonic defectoscope record probe displacement, detector record scanning angle;
(5) repeating step (4) moves to the bosom of rotor bore until probe, has then finished the ultrasound examination to whole roots rotor axle.
The invention has the beneficial effects as follows: the used instrument portable convenient of the inventive method, can carry out nondestructive examination to the turbine rotor of being with center pit fast and effectively.
Description of drawings
Fig. 1 is the synoptic diagram of the inventive method;
Fig. 2 is the left view of Fig. 1.
In Fig. 1: 1 armature spindle, 2 center pits, 3 cancave array probes.
Embodiment
Below in conjunction with accompanying drawing the inventive method is elaborated.
The inventive method may further comprise the steps:
(1) selects phased-array ultrasonic defectoscope and cancave array probe, wherein cancave array probe 3 is 360 ° of recessed battle arrays, as shown in Figure 2, recessed battle array diameter is than the little 1 ~ 2mm of diameter of the center pit 2 of detected steam turbine rotor shaft 1, so that cancave array probe 3 can be placed in the center pit just;
(2) cancave array probe 3 is connected with the phased-array ultrasonic defectoscope, cancave array probe 3 is placed on the porch of the center pit 2 of armature spindle 1, as shown in Figure 1, by couplant cancave array probe 3 is fully contacted with the arc surface of center pit 2;
(3) the focusing rule of setting phased-array ultrasonic defectoscope is the one-dimensional linear scanning, carries out the electronics scanning of same depth along the probe circumferential position, when scanning 360 °, has namely finished the ultrasound examination of armature spindle detection segment;
(4) as shown in Figure 1, along the mobile cancave array probe 3 of armature spindle center pit axial location (being direction shown in the arrow), mobile distance is no more than the length of cancave array probe concave battle array wafer, according to the checking method of step (2) and step (3) another section of armature spindle is carried out scanning; In the mobile cancave array probe process, the scrambler of phased-array ultrasonic defectoscope record probe displacement, detector record scanning angle;
(5) repeating step (4) moves to the bosom of center pit 2 until cancave array probe 3, has then finished the ultrasound examination to whole roots rotor axle 1.

Claims (1)

1. the ultrasonic detection method with the steam turbine rotor shaft of center pit is characterized in that comprising the steps:
(1) select phased-array ultrasonic defectoscope and cancave array probe, wherein cancave array probe is 360 ° of recessed battle arrays, and recessed battle array diameter is than the detected little 1 ~ 2mm of steam turbine rotor shaft center-hole diameter;
(2) cancave array probe is placed on the porch of armature spindle center pit, by couplant the arc surface of cancave array probe and center pit is fully contacted;
(3) the focusing rule of setting phased-array ultrasonic defectoscope is the one-dimensional linear scanning, carries out the electronics scanning of same depth along the probe circumferential position, when scanning 360 °, has namely finished the ultrasound examination of armature spindle detection segment;
(4) move cancave array probe along armature spindle center pit axial location, according to the checking method of step (2) and step (3) another section of armature spindle is carried out scanning; In the mobile cancave array probe process, the scrambler of phased-array ultrasonic defectoscope record probe displacement, detector record scanning angle;
(5) repeating step (4) moves to the bosom of rotor bore until probe, has then finished the ultrasound examination to whole roots rotor axle.
CN201310109509.5A 2013-04-01 2013-04-01 A kind of ultrasonic detection method of the steam turbine rotor shaft with center pit Active CN103257183B (en)

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CN201310109509.5A CN103257183B (en) 2013-04-01 2013-04-01 A kind of ultrasonic detection method of the steam turbine rotor shaft with center pit

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Application Number Priority Date Filing Date Title
CN201310109509.5A CN103257183B (en) 2013-04-01 2013-04-01 A kind of ultrasonic detection method of the steam turbine rotor shaft with center pit

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CN103257183B CN103257183B (en) 2016-01-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103901101A (en) * 2014-03-31 2014-07-02 国家电网公司 Ultrasonic testing method of steam turbine rotor provided with center hole
CN105259253A (en) * 2015-11-06 2016-01-20 国网山东省电力公司电力科学研究院 Phased array detection method of main valve rod
CN105911145A (en) * 2016-06-06 2016-08-31 浙江省特种设备检验研究院 Heat exchanger tube plate fillet weld ultrasonic-phased array detection method and device
CN106645416A (en) * 2016-11-29 2017-05-10 北京卫星制造厂 Ultrasound phased array online testing method for internal quality of thin-walled CFRP (carbon fiber reinforced resin matrix composite) pipe fitting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122360A (en) * 1981-01-23 1982-07-30 Hitachi Ltd Ultrasonic wave flaw detecting device for inner surface of small pipe
US20040016299A1 (en) * 2002-07-25 2004-01-29 David Glascock Phased array ultrasonic NDT system for tubes and pipes
US20060283250A1 (en) * 2005-06-20 2006-12-21 Siemens Westinghouse Power Corporation Phased array ultrasonic testing system and methods of examination and modeling employing the same
CN101614704A (en) * 2008-06-26 2009-12-30 株式会社东芝 Flaw detection testing method
CN102175766A (en) * 2010-12-27 2011-09-07 中国科学院声学研究所 On-line detection system and detection method for pipe (bar) ultrasonic phased array

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122360A (en) * 1981-01-23 1982-07-30 Hitachi Ltd Ultrasonic wave flaw detecting device for inner surface of small pipe
US20040016299A1 (en) * 2002-07-25 2004-01-29 David Glascock Phased array ultrasonic NDT system for tubes and pipes
US20060283250A1 (en) * 2005-06-20 2006-12-21 Siemens Westinghouse Power Corporation Phased array ultrasonic testing system and methods of examination and modeling employing the same
CN101614704A (en) * 2008-06-26 2009-12-30 株式会社东芝 Flaw detection testing method
CN102175766A (en) * 2010-12-27 2011-09-07 中国科学院声学研究所 On-line detection system and detection method for pipe (bar) ultrasonic phased array

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
吉桂琴等: "影响转子中心孔超声波探伤效果的因素及可检率探讨", 《大电机技术》, no. 2, 30 April 2006 (2006-04-30), pages 35 - 37 *
滕永平等: "汽轮机转子中心孔超声成像检测方法研究", 《无损检测》, vol. 24, no. 4, 30 April 2002 (2002-04-30), pages 151 - 153 *
陆唯一: "海底管道检测超声探头及探头阵列的设计", 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅱ辑》, no. 06, 15 June 2007 (2007-06-15) *
马羽宽等: "《超声探伤B》", 30 June 1985, article "第9章 保养检查", pages: 209 - 3 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103901101A (en) * 2014-03-31 2014-07-02 国家电网公司 Ultrasonic testing method of steam turbine rotor provided with center hole
CN105259253A (en) * 2015-11-06 2016-01-20 国网山东省电力公司电力科学研究院 Phased array detection method of main valve rod
CN105259253B (en) * 2015-11-06 2018-09-07 国网山东省电力公司电力科学研究院 A kind of phased array detection method of main inlet throttle-stop valve valve rod
CN105911145A (en) * 2016-06-06 2016-08-31 浙江省特种设备检验研究院 Heat exchanger tube plate fillet weld ultrasonic-phased array detection method and device
CN105911145B (en) * 2016-06-06 2018-12-11 浙江省特种设备检验研究院 A kind of heat exchanger tube sheet fillet weld ultrasonic phase array detection method and device
CN106645416A (en) * 2016-11-29 2017-05-10 北京卫星制造厂 Ultrasound phased array online testing method for internal quality of thin-walled CFRP (carbon fiber reinforced resin matrix composite) pipe fitting

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Inventor after: Wang Qing

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