CN209400478U - A kind of station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces - Google Patents
A kind of station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces Download PDFInfo
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- CN209400478U CN209400478U CN201821851071.2U CN201821851071U CN209400478U CN 209400478 U CN209400478 U CN 209400478U CN 201821851071 U CN201821851071 U CN 201821851071U CN 209400478 U CN209400478 U CN 209400478U
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000007547 defect Effects 0.000 claims abstract description 67
- 238000004088 simulation Methods 0.000 claims abstract description 60
- 230000004927 fusion Effects 0.000 claims abstract description 27
- 230000035515 penetration Effects 0.000 claims abstract description 16
- 238000005476 soldering Methods 0.000 claims abstract description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 230000002950 deficient Effects 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a kind of station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces, including simulation branch tube cylinder and simulation header cylinder, the diameter of the simulation branch tube cylinder is less than the diameter of the simulation header cylinder, the simulation branch pipe barrel soldering is on the side wall of the simulation header cylinder, the axis of the two is mutually perpendicular to, and forms lap welding seam in weld；The weld seam is circumferentially successively arranged incomplete penetration defect, branch pipe side slope mouth incomplete fusion defect, header side slope mouth incomplete fusion defect and strip defect；The incomplete penetration defect is located at the bottom of the weld seam；The branch pipe side slope mouth incomplete fusion defect is close to the junction of the weld seam and the simulation branch tube cylinder；The header side slope mouth incomplete fusion defect is close to the junction of the weld seam and the simulation header cylinder；The strip defect is located at the middle part of the weld seam.The utility model has the advantages that structurally reasonable, defect kind setting is complete, defective locations are reused rationally, for a long time.
Description
Technical field
The utility model relates to detection technique fields more particularly to a kind of station boiler emplacement type central diameter pipe T-type corner connection to connect
Head phased array simulating test pieces.
Background technique
Station boiler emplacement type central diameter T-type Nozzle weld is widely applied in station boiler, as the channel nozzle of water-cooling wall collection,
The channel nozzle of steam inlet and outlet collection, collection vapour collection channel nozzle, low temperature superheater inlet and outlet collection channel nozzle etc., the superiority and inferiority of quality
Directly affect the safe operation of station boiler.Due to Nozzle weld bevel shape and structure is complicated, weld seam be easy to appear stomata,
The defects of slag inclusion, lack of penetration, incomplete fusion and crackle, endanger safe operation of the boiler.Routine is generally used for above-mentioned internal flaw
Supersonic detection method is detected, but Workpiece structure is complicated, and testing result is influenced very greatly, to often lead to leak by peopleware factor
Inspection and erroneous judgement, therefore the relatively reliable detection method used is of great significance for the safe operation of boiler.And ultrasonic phase battle array control
It is scanning direction and the depth of focus for controlling acoustic beam by electronic technology, the same probe may be implemented to detect different walls
Thickness, unlike material, different shape workpiece Detection task, it is big to overcome conventional Multi probe automatic ultrasonic detection system adjustment difficulty
The narrow shortcoming with probe adaptation range.Therefore, it is phased that station boiler emplacement type central diameter pipe T-type corner joint can be rationally designed
Battle array simulating test pieces, survey the defective locations of T-type corner joint, defect length and depth of defect by phased array inspection instrument
Amount, and defect is reviewed by conventional Ultrasound lossless detection method, verifying phased array detects T-type corner joint internal flaw
Feasibility and accuracy.But it is also seldom for the research of simulating test pieces at present.
Utility model content
Based on this, the purpose of the utility model is to provide a kind of station boiler emplacement type central diameter pipe T-type corner joint phases
Control battle array simulating test pieces, have the advantages that it is structurally reasonable, can reuse for a long time.
The purpose of this utility model is achieved through the following technical solutions: a kind of station boiler emplacement type central diameter pipe T-type
Corner joint phased array simulating test pieces, including simulation branch tube cylinder and simulation header cylinder, the diameter of the simulation branch tube cylinder
Less than it is described simulation header cylinder diameter, it is described simulation branch pipe barrel soldering in it is described simulation header cylinder side wall on, two
The axis of person is mutually perpendicular to, and forms lap welding seam in weld；The weld seam is circumferentially successively arranged incomplete penetration defect, branch pipe side
Groove incomplete fusion defect, header side slope mouth incomplete fusion defect and strip defect；The incomplete penetration defect is located at the bottom of the weld seam
Portion；The branch pipe side slope mouth incomplete fusion defect is close to the junction of the weld seam and the simulation branch tube cylinder；The header side
Groove incomplete fusion defect is close to the junction of the weld seam and the simulation header cylinder；The strip defect is located at the weld seam
Middle part.
Compared with the existing technology, the simulating test pieces of the utility model can be used for detecting incomplete penetration defect, incomplete fusion defect and
Strip defect, and defective locations, length and depth are measured, and defect is carried out by conventional Ultrasound lossless detection method
Reinspection, the feasibility and accuracy of verifying phased array detection T-type corner joint；The simulating test pieces of the utility model are closed with structure
The advantages of complete, defective locations are reasonable, reuse for a long time is arranged in reason, defect kind.
Further, the incomplete penetration defect, branch pipe side slope mouth incomplete fusion defect, header side slope mouth incomplete fusion defect and item
The start position of shape defect and the extreme higher position of the weld seam be respectively at a distance from the simulation branch tube cylinder circumferential direction 0mm,
125mm, 250mm and 375mm.
Further, the incomplete penetration defect is arc-shaped, and the length along the simulation branch tube cylinder circumferential direction is 12mm, edge
The height of the simulation branch pipe cylinder axial direction is 4mm.
Further, the branch pipe side slope mouth incomplete fusion defect is arc-shaped, along the length of the simulation branch tube cylinder circumferential direction
Degree is 12mm, and the height along the simulation branch pipe cylinder axial direction is 4mm.
Further, the header side slope mouth incomplete fusion defect is arc-shaped, along the length of the simulation branch tube cylinder circumferential direction
Degree is 12mm, and the height along the simulation branch pipe cylinder axial direction is 4mm.
Further, the strip defect is arc-shaped, and the length along the simulation branch tube cylinder circumferential direction is 12mm, along institute
The height for stating simulation branch pipe cylinder axial direction is 4mm.
Further, the size of the simulation branch tube cylinder is 159 × 8mm of Φ, and the size of the simulation header cylinder is
Φ325×14mm。
Further, the length of the simulation branch tube cylinder is 250mm, and the length of the simulation header cylinder is 400mm.
Further, the simulation branch tube cylinder and the simulation header cylinder are carbon steel cylinder.
In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the front view structure of the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces of embodiment
Schematic diagram.
Fig. 2 is the plan structure of the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces of embodiment
Schematic diagram.
Fig. 3 is the cross-section structure of the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces of embodiment
Schematic diagram.
Fig. 4 is the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces incomplete penetration defect of embodiment
Schematic diagram.
Fig. 5 is that the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces branch pipe side of embodiment is unmelted
Close defect schematic diagram.
Fig. 6 is that the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces header side of embodiment is unmelted
Close defect schematic diagram.
Fig. 7 is that the station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces strip defect of embodiment is shown
It is intended to.
Specific embodiment
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a.
Please refer to Fig. 1-7, the station boiler emplacement type central diameter pipe T-type corner joint phased array of the present embodiment simulates examination
Block, including simulation branch tube cylinder 10 and simulation header cylinder 20, the diameter of the simulation branch tube cylinder 10 collect less than the simulation
The diameter of case cylinder 20, the simulation branch tube cylinder 10 are welded on the side wall of the simulation header cylinder 20, the axis of the two
It is mutually perpendicular to, forms lap welding seam 30 in weld；The weld seam 30 is circumferentially successively arranged incomplete penetration defect 31, branch pipe side slope
Mouth incomplete fusion defect 32, header side slope mouth incomplete fusion defect 33 and strip defect 34.
In the present embodiment, the simulation branch tube cylinder 10 and the material for simulating header cylinder 20 are all made of 20# steel material.Institute
The size for stating simulation branch tube cylinder 10 is 159 × 8mm of Φ, length 250mm.The size of the simulation header cylinder 20 is Φ
325 × 14mm, length 400mm.
Please refer to Fig. 4-7, wherein position shown in 0 corresponds to the extreme higher position of weld seam 30, and arrow direction corresponds to weld seam 30 along institute
State the circumferential counter clockwise direction of simulation branch tube cylinder 10.
Specifically, the incomplete penetration defect 31 is located at the bottom of the weld seam 30, it is arc-shaped, start position and 0 institute
Show that position is overlapped, the circumferential distance of position shown in dead-centre position and 0 is d0 (12mm), defect length d0-0=12mm, height
For 4mm.
The branch pipe side slope mouth incomplete fusion defect 32 close to the junction of the weld seam 30 and the simulation branch tube cylinder 10,
To be arc-shaped, the circumferential distance of position shown in start position and dead-centre position and 0 is respectively d1 (125mm) and d2 (137mm),
Length is d2-d1=12mm, is highly 4mm.
The header side slope mouth incomplete fusion defect 33 close to the junction of the weld seam 30 and the simulation header cylinder 20,
To be arc-shaped, the circumferential distance of position shown in start position and dead-centre position and 0 is respectively d3 (250mm) and d4 (262mm),
Length is d4-d3=12mm, is highly 4mm.
The strip defect 34 is located at the middle part of the weld seam 30, to be arc-shaped, start position and dead-centre position and 0 institute
The circumferential distance for showing position is respectively d5 (375mm) and d6 (387mm), and length d6-d5=12mm is highly 4mm.
When being detected using the simulating test pieces of the present embodiment, using phased array detector, after adjusting parameter, holds and visit
Head coats couplant, is placed in branch pipe side base material, moves up and down probe acoustic beam alignment weld seam, lacks to the setting in weld seam
Fall into detection.
Compared with the existing technology, the utility model has the following beneficial effects:
(1) test block can be used for detecting incomplete penetration defect, incomplete fusion defect and strip defect, and to defective locations, length and
Depth measures, and is rechecked by conventional Ultrasound lossless detection method to defect, and verifying phased array detection T-type corner connection connects
The feasibility and accuracy of head.
(2) test block uses the material of acoustical behavior same or similar with practical examined workpiece, can reduce ultrasonic examination
Sensitivity error.
(3) test block have structurally reasonable, defect kind be arranged complete, defective locations reuse rationally, for a long time it is excellent
Point.
A kind of embodiment of the utility model above described embodiment only expresses, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (9)
1. a kind of station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces, which is characterized in that including simulation branch
Tube cylinder and simulation header cylinder, the diameter of the simulation branch tube cylinder are less than the diameter of the simulation header cylinder, the mould
In on the side wall of the simulation header cylinder, the axis of the two is mutually perpendicular to quasi- branch pipe barrel soldering, forms a circle in weld
Weld seam；The weld seam is circumferentially successively arranged incomplete penetration defect, branch pipe side slope mouth incomplete fusion defect, header side slope mouth incomplete fusion and lacks
It falls into and strip defect；The incomplete penetration defect is located at the bottom of the weld seam；The branch pipe side slope mouth incomplete fusion defect is close to institute
State the junction of weld seam and the simulation branch tube cylinder；The header side slope mouth incomplete fusion defect is close to the weld seam and the mould
The junction of quasi- header cylinder；The strip defect is located at the middle part of the weld seam.
2. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 1, feature
It is, the incomplete penetration defect, branch pipe side slope mouth incomplete fusion defect, the starting point of header side slope mouth incomplete fusion defect and strip defect
Position and the extreme higher position of the weld seam be respectively at a distance from the simulation branch tube cylinder circumferential direction 0mm, 125mm, 250mm and
375mm。
3. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 2, feature
It is, it is 12mm along the length for simulating branch tube cylinder circumferential direction, along the simulation branch pipe that the incomplete penetration defect, which is arc-shaped,
The height of cylinder axial direction is 4mm.
4. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 3, feature
It is, it is 12mm along the length for simulating branch tube cylinder circumferential direction, along institute that the branch pipe side slope mouth incomplete fusion defect, which is arc-shaped,
The height for stating simulation branch pipe cylinder axial direction is 4mm.
5. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 4, feature
It is, it is 12mm along the length for simulating branch tube cylinder circumferential direction, along institute that the header side slope mouth incomplete fusion defect, which is arc-shaped,
The height for stating simulation branch pipe cylinder axial direction is 4mm.
6. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 5, feature
It is, it is 12mm along the length for simulating branch tube cylinder circumferential direction, along the simulation branch socket that the strip defect, which is arc-shaped,
The height of body axial direction is 4mm.
7. any station boiler emplacement type central diameter pipe T-type corner joint phased array simulates examination according to claim 1~6
Block, which is characterized in that the size of the simulation branch tube cylinder is 159 × 8mm of Φ, and the size of the simulation header cylinder is Φ
325×14mm。
8. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 7, feature
It is, the length of the simulation branch tube cylinder is 250mm, and the length of the simulation header cylinder is 400mm.
9. station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces according to claim 8, feature
It is, the simulation branch tube cylinder and the simulation header cylinder are carbon steel cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821851071.2U CN209400478U (en) | 2018-11-09 | 2018-11-09 | A kind of station boiler emplacement type central diameter pipe T-type corner joint phased array simulating test pieces |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227053A (en) * | 2021-12-30 | 2022-03-25 | 中铁大桥科学研究院有限公司 | Intersecting line weld test piece for ultrasonic nondestructive testing and design method thereof |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227053A (en) * | 2021-12-30 | 2022-03-25 | 中铁大桥科学研究院有限公司 | Intersecting line weld test piece for ultrasonic nondestructive testing and design method thereof |
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Effective date of registration: 20240617 Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND Research Institute Country or region before: China |