CN216847547U - Pipeline welding seam defect detection simulation test piece - Google Patents
Pipeline welding seam defect detection simulation test piece Download PDFInfo
- Publication number
- CN216847547U CN216847547U CN202123366814.1U CN202123366814U CN216847547U CN 216847547 U CN216847547 U CN 216847547U CN 202123366814 U CN202123366814 U CN 202123366814U CN 216847547 U CN216847547 U CN 216847547U
- Authority
- CN
- China
- Prior art keywords
- groove
- annular groove
- annular
- wall
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A simulation test piece for detecting the weld defects of a pipeline belongs to the technical field of incomplete penetration detection of pipelines. The utility model discloses a hollow straight tube, the outer wall of straight tube one side is equipped with a plurality of first annular grooves that the groove depth degressive in proper order along straight tube length direction, and interval between two adjacent first annular grooves is unanimous, and the inner wall of straight tube opposite side is equipped with a plurality of second annular grooves that the groove depth increases progressively along straight tube length direction in proper order, and interval between two adjacent second annular grooves is unanimous, and first annular groove's groove width is the same with second annular groove's groove width. The utility model is simple and convenient to use, digital ray irradiation is carried out on the pipeline and a simulation test piece with the same specification as the pipeline under the same transillumination condition, and the depth of incomplete welding of the pipeline and the depth of undercut of the outer wall can be obtained through comparison; the outer wall of one side of the straight pipe is provided with the first annular groove for simulating the undercut defect of the outer wall, and the inner wall of the other side of the straight pipe is provided with the second annular groove for simulating the incomplete penetration defect of the inner wall.
Description
Technical Field
The utility model belongs to the technical field of the pipeline is not welded completely and is detected, specifically relate to a pipeline welding seam defect detection simulation test piece.
Background
In the process of regularly inspecting the pressure pipeline, the incomplete penetration defect is common due to the influence of factors such as welding and the like in the installation process. At present, Digital Radiography (DR) is often adopted for detection, real-time imaging is realized, the exposure time is short, a computer and image processing are adopted, and theoretically, the accurate measurement of defects can be realized. For defect detection, the current error is acceptable. However, the requirement for measurement accuracy is high, and for example, in the detection of wall thickness reduction caused by corrosion and the like, a standard test piece with a known size needs to be placed in a detected area to participate in imaging, the correction coefficient of the point or the area is calculated, and finally, actual accurate data of the area is converted. Therefore, in order to achieve a high-precision detection result, a standard test piece matched with the standard test piece is required to be used for improving the detection precision.
Disclosure of Invention
The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a pipeline welding seam defect detection simulation test piece.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a pipeline welding seam defect detection simulation test piece, includes hollow straight tube, the outer wall of straight tube one side is equipped with a plurality of first annular grooves that the groove depth degressive along straight tube length direction in proper order, adjacent two interval between the first annular groove is unanimous, the inner wall of straight tube opposite side is equipped with a plurality of second annular grooves that the groove depth scales up along straight tube length direction in proper order, adjacent two interval between the second annular groove is unanimous, the groove width of first annular groove is the same with the groove width of second annular groove.
Preferably, the first annular groove and the second annular groove are symmetrically arranged.
Preferably, the decreasing change of the groove depth of the first annular groove is the same as the increasing change of the groove depth of the second annular groove.
Preferably, the inner walls of the two ends of the straight pipe are both provided with threads.
Preferably, the straight pipe is a 20# steel straight pipe.
As preferred, the external diameter of straight tube is 57mm, and length is 300mm, and the pipe wall is 3.5mm, first annular groove is provided with four, first annular groove's groove width is 2.5mm, first annular groove's groove depth is 2mm, 1.5mm, 1mm and 0.5mm respectively, adjacent two interval between the first annular groove is 20mm, second annular groove is provided with four, second annular groove's groove width is 2.5mm, second annular groove's groove depth is 0.5mm, 1mm, 1.5mm and 2mm respectively, adjacent two interval between the second annular groove is 20 mm.
As preferred, the external diameter of straight tube is 108mm, and length is 300mm, and the pipe wall is 4mm, first annular groove is provided with four, first annular groove's groove width is 2.5mm, first annular groove's groove depth is 3mm, 2mm, 1mm and 0.5mm respectively, adjacent two interval between the first annular groove is 20mm, second annular groove is provided with four, second annular groove's groove width is 2.5mm, second annular groove's groove depth is 0.5mm, 1mm, 2mm and 3mm respectively, adjacent two interval between the second annular groove is 20 mm.
As preferred, the external diameter of straight tube is 219mm, and length is 300mm, and the pipe wall is 6mm, first annular groove is provided with four, first annular groove's groove width is 2.5mm, first annular groove's groove depth is 5mm, 3mm, 1mm and 0.5mm respectively, adjacent two interval between the first annular groove is 20mm, second annular groove is provided with four, second annular groove's groove width is 2.5mm, second annular groove's groove depth is 0.5mm, 1mm, 3mm and 5mm respectively, adjacent two interval between the second annular groove is 20 mm.
The utility model discloses beneficial effect who has: the utility model discloses convenience simple to use carries out digital ray through the simulation test piece with pipeline, with the same specification of pipeline and shines under the condition the same trans-illumination, can obtain pipeline incomplete penetration depth and outer wall undercut degree of depth through comparing. The utility model discloses a be equipped with first annular groove on the outer wall of straight tube one side for simulate outer wall undercut defect, through be equipped with the second annular groove on the inner wall of straight tube opposite side, be used for simulating the inner wall and not weld through the defect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a straight pipe; 2. a first annular groove; 3. a second annular groove; 4. and (4) threading.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the utility model provides a pipeline welding seam defect detection simulation test piece, as shown in figure 1, including hollow straight tube 1, the material of straight tube 1 is 20# steel, the outer wall of 1 one side of straight tube is equipped with a plurality of first annular grooves 2 that the groove depth degressive along 1 length direction of straight tube in proper order, adjacent two interval between the first annular groove 2 is unanimous, the inner wall of 1 opposite side of straight tube is equipped with a plurality of second annular grooves 3 that the groove depth increases progressively along 1 length direction of straight tube in proper order, adjacent two interval between the second annular groove 3 is unanimous, the groove width of first annular groove 2 is the same with the groove width of second annular groove 3.
The first annular groove 2 and the second annular groove 3 are symmetrically arranged; the groove depth decreasing change of the first annular groove 2 is the same as the groove depth increasing change of the second annular groove 3; and the inner walls of the two ends of the straight pipe 1 are provided with threads 4.
The groove depth of the first annular groove 2 and the second annular groove 3 can be set according to requirements:
for example, the outer diameter of the straight pipe 1 is 57mm, the length is 300mm, and the pipe wall is 3.5 mm; the four first annular grooves 2 are arranged on the outer wall of the left side of the straight pipe 1, the groove depth of each first annular groove 2 is 2mm, 1.5mm, 1mm and 0.5mm from left to right in sequence, the distance between every two adjacent first annular grooves 2 is 20mm, and the groove width of each first annular groove 2 is 2.5 mm; second annular groove 3 sets up on the inner wall on straight tube 1 right side, is provided with four altogether, and the groove depth of second annular groove 3 from left to right is 0.5mm, 1mm, 1.5mm and 2mm in proper order, and the interval between two adjacent second annular grooves 3 is 20mm, and the groove width of second annular groove 3 is 2.5mm, and first annular groove 2 that the groove depth is the same, second annular groove 3 are symmetrical, all is equipped with the taper pipe screw thread that the knot type size is 2 on the both ends inner wall of straight tube 1.
For example, the outer diameter of the straight pipe 1 is 108mm, the length is 300mm, and the pipe wall is 4 mm; the four first annular grooves 2 are arranged on the outer wall of the left side of the straight pipe 1, the groove depth of each first annular groove 2 is 3mm, 2mm, 1mm and 0.5mm from left to right in sequence, the distance between every two adjacent first annular grooves 2 is 20mm, and the groove width of each first annular groove 2 is 2.5 mm; second annular groove 3 sets up on the inner wall on straight tube 1 right side, is provided with four altogether, and the groove depth of second annular groove 3 from left to right is 0.5mm, 1mm, 2mm and 3mm in proper order, and the interval between two adjacent second annular grooves 3 is 20mm, and the groove width of second annular groove 3 is 2.5mm, and first annular groove 2 that the groove depth is the same, second annular groove 3 are symmetrical, all is equipped with the taper pipe screw thread that the knot type size is 4 on the both ends inner wall of straight tube 1.
For example, the outer diameter of the straight pipe 1 is 219mm, the length is 300mm, and the pipe wall is 6 mm; the four first annular grooves 2 are arranged on the outer wall of the left side of the straight pipe 1, the groove depth of each first annular groove 2 is 5mm, 3mm, 1mm and 0.5mm from left to right in sequence, the distance between every two adjacent first annular grooves 2 is 20mm, and the groove width of each first annular groove 2 is 2.5 mm; second annular groove 3 sets up on the inner wall on straight tube 1 right side, is provided with four altogether, and the groove depth of second annular groove 3 from left to right is 0.5mm, 1mm, 3mm and 5mm in proper order, and the interval between two adjacent second annular grooves 3 is 20mm, and the groove width of second annular groove 3 is 2.5mm, and first annular groove 2 that the groove depth is the same, second annular groove 3 are symmetrical, all is equipped with the taper pipe screw thread that the knot type size is 8 on the both ends inner wall of straight tube 1.
The simulation test piece is used for simulating the defects of incomplete penetration of the inner wall and undercut of the outer wall of the pipeline, and is used as follows: in an inspection site, when the defect that the inner wall of the pipeline is not completely welded or the outer wall of the pipeline is undercut is found, the pipeline and a simulation test piece with the same specification as the pipeline are subjected to digital ray irradiation under the same transillumination condition, and the depth of the pipeline without complete welding and the depth of the outer wall undercut can be obtained through comparison.
To sum up, the utility model discloses convenience simple to use carries out digital ray through the simulation test piece with the pipeline, with the same specification of pipeline and shines under the condition the same trans-illumination, can obtain pipeline depth of incomplete penetration and outer wall undercut degree of depth through comparing. The utility model discloses a be equipped with first annular groove on the outer wall of straight tube one side for simulate outer wall undercut defect, through be equipped with the second annular groove on the inner wall of straight tube opposite side, be used for simulating the inner wall and not weld through the defect.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (8)
1. The utility model provides a pipeline welding seam defect detection simulation test piece, includes hollow straight tube, its characterized in that, the outer wall of straight tube one side is equipped with a plurality of first annular grooves of groove depth degressive, adjacent two along straight tube length direction interval between the first annular groove is unanimous in proper order, the inner wall of straight tube opposite side is equipped with a plurality of second annular grooves of groove depth increment in proper order along straight tube length direction, adjacent two interval between the second annular groove is unanimous mutually, the groove width of first annular groove is the same with the groove width of second annular groove.
2. The pipe weld defect detection simulation test piece according to claim 1, wherein the first annular groove and the second annular groove are symmetrically arranged.
3. The pipe weld defect detection simulation test piece of claim 1, wherein the decreasing amplitude of the groove depth of the first annular groove is the same as the increasing amplitude of the groove depth of the second annular groove.
4. The pipe weld defect detection simulation test piece according to claim 1, wherein the inner walls of both ends of the straight pipe are provided with threads.
5. The pipe weld defect detection simulation test piece according to claim 1, wherein the straight pipe is a 20# straight steel pipe.
6. The pipe welding seam defect detection simulation test piece according to claim 1, wherein the outer diameter of the straight pipe is 57mm, the length of the straight pipe is 300mm, the pipe wall of the straight pipe is 3.5mm, four first annular grooves are provided, the groove width of each first annular groove is 2.5mm, the groove depth of each first annular groove is 2mm, 1.5mm, 1mm and 0.5mm, the distance between every two adjacent first annular grooves is 20mm, four second annular grooves are provided, the groove width of each second annular groove is 2.5mm, the groove depth of each second annular groove is 0.5mm, 1mm, 1.5mm and 2mm, and the distance between every two adjacent second annular grooves is 20 mm.
7. The pipe welding seam defect detection simulation test piece according to claim 1, wherein the outer diameter of the straight pipe is 108mm, the length of the straight pipe is 300mm, the pipe wall of the straight pipe is 4mm, four first annular grooves are provided, the groove width of each first annular groove is 2.5mm, the groove depth of each first annular groove is 3mm, 2mm, 1mm and 0.5mm, the distance between every two adjacent first annular grooves is 20mm, the groove width of each second annular groove is 2.5mm, the groove depth of each second annular groove is 0.5mm, 1mm, 2mm and 3mm, and the distance between every two adjacent second annular grooves is 20 mm.
8. The pipe welding seam defect detection simulation test piece according to claim 1, wherein the outer diameter of the straight pipe is 219mm, the length is 300mm, and the pipe wall is 6mm, the number of the first annular grooves is four, the groove width of each first annular groove is 2.5mm, the groove depth of each first annular groove is 5mm, 3mm, 1mm and 0.5mm, the distance between every two adjacent first annular grooves is 20mm, the number of the second annular grooves is four, the groove width of each second annular groove is 2.5mm, the groove depth of each second annular groove is 0.5mm, 1mm, 3mm and 5mm, and the distance between every two adjacent second annular grooves is 20 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021229757354 | 2021-11-23 | ||
| CN202122975735 | 2021-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216847547U true CN216847547U (en) | 2022-06-28 |
Family
ID=82112441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123366814.1U Active CN216847547U (en) | 2021-11-23 | 2021-12-28 | Pipeline welding seam defect detection simulation test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216847547U (en) |
-
2021
- 2021-12-28 CN CN202123366814.1U patent/CN216847547U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102636566B (en) | Ultrasonic flaw detection method for radial defect in barrel type forge piece | |
| CN103792243B (en) | The ray detection method of a kind of lack of penetration degree of depth of small diameter tube weld bond | |
| CN204405571U (en) | The special purpose device that a kind of small diameter tube adopts circumferential X-ray production apparatus to make film | |
| CN101968463A (en) | Method for recognizing pipeline spiral weld seam type crack defect through triaxial magnetic leakage internal detection line signal | |
| CN205449833U (en) | Accurate detectable material's of digit ray transillumination technique defect and device of thickness | |
| CN216847547U (en) | Pipeline welding seam defect detection simulation test piece | |
| CN107782753A (en) | A kind of small diameter conduits batch ray detecting apparatus and method | |
| CN205655808U (en) | Device of material thickness and defect height is measured with gasket and digital ray | |
| CN102636567B (en) | Oblique-incidence ultrasonic flaw detection method for barrel-type forging | |
| CN210834713U (en) | Heat exchange tube-tube sheet welded joint defect size correction test block | |
| CN216560350U (en) | Simulation test piece for detecting pipeline weld defects | |
| CN209247705U (en) | The ultrasound examination reference block of stainless steel oil pipe weld seam | |
| CN109360669A (en) | A kind of weld seam hollow depth assessment method for high temperature gas cooled reactor ball flow tube road | |
| CN101403712B (en) | Method for appraising X-ray detection weld joint K value by utilizing overlap joint mark article | |
| CN106053472A (en) | On-line nondestructive test method for weld of ITER square pipe | |
| CN207035980U (en) | A kind of flareless pipe joint termination dimension measuring device | |
| CN213239973U (en) | Positioning device for pipeline center flaw detection through plug | |
| CN104330424A (en) | Determination method of trans-illumination section for TKY node fillet weld nondestructive testing | |
| CN215066342U (en) | Magnetic flux leakage detection equipment calibration device for surface quality of steel pipe | |
| CN216594868U (en) | A ladder test block for welding seam defect detecting | |
| CN211122697U (en) | Multifunctional bird-shaped test block | |
| CN114720490B (en) | Quantitative detection method for depth of incomplete penetration of pipeline based on digital rays | |
| Xie et al. | Comparative experimental study on phased array and X-ray detection of small diameter pipe weld | |
| CN214408751U (en) | Resolution test piece for tube-tube plate welding seam ray detection resolution measurement | |
| CN211669137U (en) | Multifunctional fish-shaped test block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |