CN104007130A - X-radiographic ellipse projection laser positioning method for small-diameter pipe - Google Patents
X-radiographic ellipse projection laser positioning method for small-diameter pipe Download PDFInfo
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- CN104007130A CN104007130A CN201410211392.6A CN201410211392A CN104007130A CN 104007130 A CN104007130 A CN 104007130A CN 201410211392 A CN201410211392 A CN 201410211392A CN 104007130 A CN104007130 A CN 104007130A
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- laser
- laser positioning
- ray machine
- weld
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Abstract
The invention relates to an x-radiographic ellipse projection laser positioning method for a small-diameter pipe. The method includes steps of: (1) arranging an X-ray machine beside the small-diameter pipe to enable a radiation window of the X-ray machine to align with a weld and enabling a laser beam, emitted by a laser designator of the X-ray machine, to pass through the weld and to be positioned onto a laser positioning plate arranged at a film side of the weld; and (2) adjusting the angle of the radiation window to enable a distance g to be controlled within a range from 3mm to 10mm, wherein the distance g is between a laser projection point on the laser positioning plate and an edge of the weld. The invention, aiming at installation and maintenance of the small-diameter pipe of a boiler in an electric power system, provides the ray method which is suitable for an on-site operation. The method improves work efficiency and ensures detection quality.
Description
Technical field
The invention belongs to electric system generating and power equipment and manufacture processing technique field, especially a kind of small diameter tube X-ray radiography elliptical projection laser positioning method.
Background technology
Small diameter tube is the core component of boiler heat exchange in generating plant, because their operating modes are severe, often because the leakage of small diameter tube causes blowing out, cause heavy economic losses, therefore it is very important by various lossless detection methods, small diameter tube weld seam being carried out to preventive inspection, is also one of main test item of Boiler Metallic supervision and check.
The general eccentric throw method butt welded seam elliptic imaging that adopts when on-the-spot photograph,, depart from the distance of weld seam central plane according to radiation and control oval A/F, the computing formula of opening, S
0=(b+q) L
1/ L
2, S
0-translation distance; L
1-Focal distance; L
2-thrown the tubule caliber of photograph; B-weld bead height; G-aperture pitch, but at the scene due to environment limit L
1often convert, if each transillumination all will carry out measurements and calculations, will greatly increase working time reduction work efficiency, be unsuitable for the Site Detection of small diameter tube.
Summary of the invention
The object of the invention is, in order to adapt to work on the spot condition, to increase work efficiency, and propose a kind of small diameter tube X-ray radiography elliptical projection laser positioning method.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of small diameter tube X-ray radiography elliptical projection laser positioning method, comprises that method step is as follows:
(1) equipment is settled, and X-ray machine X is placed in to small diameter tube one side, makes the radiation window of X-ray machine X aim at weld seam, and the light beam that the laser designator of X-ray machine X is sent traverses weld seam, is positioned on the laser positioning plate of weld seam film side;
(2) angle of adjusting X-ray machine X launch window makes the distance g of laser projection point on laser positioning plate and weld edge be controlled at the scope of 3mm～10mm.
And it is red, green that described laser designator is used transmitting color, the laser pen of emissive power 5mW.
And described laser positioning plate can use the opaque board foot with scale.
Advantage of the present invention and good effect are:
The present invention is directed to electric system boiler small diameter tube and install and maintenance, proposed the ray method at applicable scene, improved work efficiency, ensured detection quality.
Brief description of the drawings
Fig. 1 is that equipment of the present invention is settled schematic diagram;
Embodiment
Below in conjunction with accompanying drawing, the invention process is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of small diameter tube X-ray radiography elliptical projection laser positioning method, as shown in Figure 1, for the detection of small diameter tube, the equipment that the inventive method is used comprises X-ray machine X, the laser designator of X-ray machine X and laser display panel the inventive method step are as follows:
(1) equipment is settled; As shown in Figure 1, X-ray machine X is placed in to small diameter tube one side, makes the radiation window of X-ray machine X aim at weld seam, the light beam that the laser designator of X-ray machine X is sent traverses weld seam, is positioned on the laser positioning plate of weld seam film side;
(2) angle of adjusting X-ray machine X launch window makes the distance g of laser projection point on laser positioning plate and weld edge be controlled at the scope of 3mm～10mm;
In specific embodiment of the invention, it is red, green that laser designator is used transmitting color, the laser pen of emissive power 5mW.
In specific embodiment of the invention, described laser positioning plate can use the opaque board foot with scale.
Claims (3)
1. a small diameter tube X-ray radiography elliptical projection laser positioning method, is characterized in that: comprise that method step is as follows:
(1) equipment is settled, and X-ray machine X is placed in to small diameter tube one side, makes the radiation window of X-ray machine X aim at weld seam, and the light beam that the laser designator of X-ray machine X is sent traverses weld seam, is positioned on the laser positioning plate of weld seam film side;
(2) angle of adjusting X-ray machine X launch window makes the distance g of laser projection point on laser positioning plate and weld edge be controlled at the scope of 3mm～10mm.
2. small diameter tube X-ray radiography elliptical projection laser positioning method according to claim 1, is characterized in that: it is red, green that described laser designator is used transmitting color, the laser pen of emissive power 5mW.
3. small diameter tube X-ray radiography elliptical projection laser positioning method according to claim 1, is characterized in that: described laser positioning plate can use the opaque board foot with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211392.6A CN104007130A (en) | 2014-05-19 | 2014-05-19 | X-radiographic ellipse projection laser positioning method for small-diameter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211392.6A CN104007130A (en) | 2014-05-19 | 2014-05-19 | X-radiographic ellipse projection laser positioning method for small-diameter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104007130A true CN104007130A (en) | 2014-08-27 |
Family
ID=51367885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410211392.6A Pending CN104007130A (en) | 2014-05-19 | 2014-05-19 | X-radiographic ellipse projection laser positioning method for small-diameter pipe |
Country Status (1)
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| CN (1) | CN104007130A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301018A (en) * | 2015-10-14 | 2016-02-03 | 卢乐 | Small-diameter pipe annular welding seam ray detection positioning device and operation method of device |
| CN105352413A (en) * | 2015-10-14 | 2016-02-24 | 卢乐 | Small-diameter tube radiography elliptical projection positioning ruler and operating method thereof |
| CN108132265A (en) * | 2017-12-29 | 2018-06-08 | 卢乐 | A kind of small diameter tube X-ray radiography elliptic projection locator |
| CN113375565A (en) * | 2021-05-31 | 2021-09-10 | 浙江省特种设备科学研究院 | X-ray machine radiation source center alignment and eccentricity calculation device |
Citations (4)
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| CN2369243Y (en) * | 1998-09-29 | 2000-03-15 | 时代集团公司 | Laser positioner for crack detector |
| CN201522459U (en) * | 2009-10-29 | 2010-07-07 | 丹东奥龙射线仪器有限公司 | Annular laser indicator of X-ray circumferential defectoscope |
| CN201522460U (en) * | 2009-10-29 | 2010-07-07 | 丹东奥龙射线仪器有限公司 | Laser positioning fixed-focus device for X-ray directional flaw detector |
| CN201837596U (en) * | 2010-09-13 | 2011-05-18 | 黑龙江省火电第三工程公司 | Small-diameter radiographic flaw detection convenient rack |
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2014
- 2014-05-19 CN CN201410211392.6A patent/CN104007130A/en active Pending
Patent Citations (4)
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| CN2369243Y (en) * | 1998-09-29 | 2000-03-15 | 时代集团公司 | Laser positioner for crack detector |
| CN201522459U (en) * | 2009-10-29 | 2010-07-07 | 丹东奥龙射线仪器有限公司 | Annular laser indicator of X-ray circumferential defectoscope |
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Non-Patent Citations (2)
| Title |
|---|
| 杨劲夫: "裂纹检出角在电站小径管焊缝射线探伤中的应用", 《无损探伤》, vol. 30, no. 4, 31 August 2006 (2006-08-31) * |
| 雷艳玲: "小径管焊缝的射线检测———椭圆成像技术", 《能源研究与管理》, 31 December 2013 (2013-12-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301018A (en) * | 2015-10-14 | 2016-02-03 | 卢乐 | Small-diameter pipe annular welding seam ray detection positioning device and operation method of device |
| CN105352413A (en) * | 2015-10-14 | 2016-02-24 | 卢乐 | Small-diameter tube radiography elliptical projection positioning ruler and operating method thereof |
| CN105301018B (en) * | 2015-10-14 | 2018-04-17 | 顾志军 | A kind of small diameter tube circumferential welded seam ray detection positioner and its operating method |
| CN105352413B (en) * | 2015-10-14 | 2018-05-15 | 广东晟惠检测科技有限公司 | A kind of small diameter tube X radiography elliptic projection positioning rules and its operating method |
| CN108132265A (en) * | 2017-12-29 | 2018-06-08 | 卢乐 | A kind of small diameter tube X-ray radiography elliptic projection locator |
| CN108132265B (en) * | 2017-12-29 | 2020-10-30 | 日照朝一科技创新发展有限公司 | Small-diameter tube X-ray photography elliptical projection positioner |
| CN113375565A (en) * | 2021-05-31 | 2021-09-10 | 浙江省特种设备科学研究院 | X-ray machine radiation source center alignment and eccentricity calculation device |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140827 |