CN201837612U - Ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes - Google Patents
Ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes Download PDFInfo
- Publication number
- CN201837612U CN201837612U CN2010205042421U CN201020504242U CN201837612U CN 201837612 U CN201837612 U CN 201837612U CN 2010205042421 U CN2010205042421 U CN 2010205042421U CN 201020504242 U CN201020504242 U CN 201020504242U CN 201837612 U CN201837612 U CN 201837612U
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- China
- Prior art keywords
- short tube
- probe
- angle
- fillet weld
- detecting device
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Abstract
The utility model provides an ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes, which avoids waste of forgings and generation of secondary processing cost, and is high in integral efficiency, short in production cycle and low in cost. In the technical scheme, the ultrasonic flaw detecting device comprises a boiler tube body and a short tube connected thereto via a fillet weld by means of welding, and is characterized in that inclined probes at different refraction angles are distributed on the external circumference of the short tube, ultrasonic waves emitted by the inclined probes are aligned to a weld section of the fillet weld with the short tube, a straight probe is mounted on the inner surface of the boiler tube body, and ultrasonic waves emitted by the straight probe are aligned to a weld section of the fillet weld with the boiler tube body.
Description
Technical field
The utility model relates to the inspection field that boiler is made, and is specially a kind of radial tubes base fillet weld ultrasonic flaw detecting device of short tube.
Background technology
Radially in the base fillet weld UT (Ultrasonic Testing), right at the superpressure boiler drum
Φ235 * 55,
Φ135 * 35.75,
Φ205 * 52.5,
Φ300 * 65,
Φ130 * 33.25,
Φ270 * 65.1,
ΦIn the detection of 405 * 85.55 specifications, exist the forging tube wall, thickness is different, detects curved surface and changes greatly, radially straight section short (60mm-120mm) carries out UT100% to fillet weld and detects, and just must keep the displacement (P that pops one's head in
=2.5TK) just can make acoustic beam cover the whole welding line cross section, reach ultrasound wave 100% and detect.
Existing radial tubes base fillet weld short tube defect detection on ultrasonic basis is: by drawing, increase process allowance when the forging blanking by technology, Deng detect qualified after, eliminate by machine work, the requirement of final maintenance design drawing, after adopting this method, its forging waste of material is big, and the secondary processing expense is big, difficulty of processing is big; Caused whole efficiency low, the production cycle is long, cost is high.
Summary of the invention
At the problems referred to above, the utility model provides a kind of radial tubes base fillet weld ultrasonic flaw detecting device of short tube, its do not waste forging and do not produce secondary processing cost, whole efficiency height, with short production cycle, cost is low.
A kind of radial tubes base fillet weld ultrasonic flaw detecting device of short tube, its technical scheme is such: it comprises that drum cylindrical shell, short tube, described short tube are welded to connect described drum cylindrical shell by fillet weld, it is characterized in that: the periphery of described short tube is placed with the different angle probe in refraction angle, the ultrasound wave that described angle probe penetrates is aimed at the section of weld joint of described fillet weld and described short tube, the inside surface of described drum cylindrical shell is equipped with normal probe, and the ultrasound wave that described normal probe penetrates is aimed at the section of weld joint of described fillet weld and described drum cylindrical shell.
It is further characterized in that:
Each probe of described angle probe guarantees that its ultrasound wave covers the section of weld joint of whole described fillet weld and described short tube after displacement, and the scope of the displacement of each probe of described angle probe is all in the periphery of the radially straight section pipe of described short tube;
Guarantee after the described normal probe displacement that its ultrasound wave covers the section of weld joint of described fillet weld and described drum cylindrical shell;
The differential seat angle at the refraction angle of the angle probe that described refraction angle is different should be greater than 10% with respect to the angle at a wherein maximum refraction angle;
The probe Qian Yan of the different angle probe in described refraction angle, normal probe ≦ 10 millimeters;
When angle probe can be put into the internal diameter of described short tube, at the inner headed face of described short tube angle probe is set, the ultrasound wave of described angle probe is aimed at the section of weld joint of described fillet weld and described short tube.
After adopting structure of the present utility model, the flaw detection of the fillet weld of short tube and drum cylindrical shell and the section of weld joint of short tube, guarantee that its ultrasound wave covers the section of weld joint of whole described fillet weld and described short tube after each probe displacement by the different angle probe in refraction angle, feed back its flaw detection information, wherein the displacement scope of each probe is in the periphery of the radially straight section pipe of short tube, so short tube need not to increase process allowance, after also need not to wait detection qualified, eliminate by machine work, the requirement of final maintenance design drawing is not so forging is wasted in this method of detection, and do not produce secondary processing cost, the whole efficiency height, with short production cycle, cost is low.
Description of drawings
Fig. 1 is a probe positions synoptic diagram of the present utility model.
Embodiment
See Fig. 1, the utility model comprise drum cylindrical shell 5,
Φ 235 * 55 Short tube 6,
Φ 235 * 55 Short tube 6 is welded to connect drum cylindrical shell 5 by fillet weld 7,
Φ 235 * 55The periphery of short tube 6 is placed with two angle probes 1,2 that the refraction angle is different, and the model of angle probe 1 is that the model of 2.5P9 * 9K1.5-D, angle probe 2 is 2.5P9 * 9K2-D,
The ultrasound wave alignment angle weld seam 7 that angle probe 1,2 penetrates with
Φ 235 * 55The section of weld joint 8 of short tube 6 guarantees after angle probe 1, angle probe 2 displacements that its ultrasound wave covers whole welding line cross section 8, and the scope of angle probe 1, angle probe 2 displacements all exists
Φ 235 * 55In the periphery of the radially straight section pipe of short tube, the inside surface of drum cylindrical shell 5 is equipped with normal probe 4, its model is 2.5P14-Z, and the ultrasound wave alignment angle weld seam 7 that normal probe 4 penetrates and the section of weld joint 9 of drum cylindrical shell 5, normal probe 4 move guarantees that its ultrasound wave covers section of weld joint 9 and detects a flaw.
Φ 235 * 55The inner headed face of short tube 6 is provided with angle probe 3, and the model of angle probe 3 is 2.5P9 * 9K1.5-D, and the ultrasound wave of angle probe 3 is aimed at section of weld joint 8, and angle probe 3 has been surveyed forward position, K value with an intact angle probe 3 earlier when surveying, carry out amplitude curve, exists then
Φ 235 * 55An inner headed face inwall shop rubber paper (do not draw among the figure, belong to existing mature technology) of short tube 6, angle probe 3 is put into
Φ 235 * 55The inner headed face reconditioning of short tube 6, the angle probe 3 after the reconditioning moves finishes flaw detection.
The probe Qian Yan of angle probe 1, angle probe 2, angle probe 3, normal probe 4 ≦ 10 millimeters.
Arrow among Fig. 1 is the ultrasonic emitting direction of each probe.
Claims (6)
1. the radial tubes base fillet weld ultrasonic flaw detecting device of a short tube, it comprises that drum cylindrical shell, short tube, described short tube are welded to connect described drum cylindrical shell by fillet weld, it is characterized in that: the periphery of described short tube is placed with the different angle probe in refraction angle, the ultrasound wave that described angle probe penetrates is aimed at the section of weld joint of described fillet weld and described short tube, the inside surface of described drum cylindrical shell is equipped with normal probe, and the ultrasound wave that described normal probe penetrates is aimed at the section of weld joint of described fillet weld and described drum cylindrical shell.
2. the radial tubes base fillet weld ultrasonic flaw detecting device of a kind of short tube according to claim 1, it is characterized in that: each probe of described angle probe guarantees that its ultrasound wave covers the section of weld joint of whole described fillet weld and described short tube after displacement, and the scope of the displacement of each probe of described angle probe is all in the periphery of the radially straight section pipe of described short tube.
3. the radial tubes base fillet weld ultrasonic flaw detecting device of a kind of short tube according to claim 1 is characterized in that: guarantee after the described normal probe displacement that its ultrasound wave covers the section of weld joint of described fillet weld and described drum cylindrical shell.
4. the radial tubes base fillet weld ultrasonic flaw detecting device of a kind of short tube according to claim 1 is characterized in that: the differential seat angle at the refraction angle of the angle probe that described refraction angle is different should be greater than 10% with respect to the angle at a wherein maximum refraction angle.
5. the radial tubes base fillet weld ultrasonic flaw detecting device of a kind of short tube according to claim 1 is characterized in that: the probe Qian Yan of the different angle probe in described refraction angle, normal probe ≦ 10 millimeters.
6. the radial tubes base fillet weld ultrasonic flaw detecting device of a kind of short tube according to claim 1, angle probe it is characterized in that: when can be put into the internal diameter of described short tube, inner headed face at described short tube is provided with angle probe, and the ultrasound wave of described angle probe is aimed at the section of weld joint of described fillet weld and described short tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205042421U CN201837612U (en) | 2010-08-25 | 2010-08-25 | Ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205042421U CN201837612U (en) | 2010-08-25 | 2010-08-25 | Ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837612U true CN201837612U (en) | 2011-05-18 |
Family
ID=44007720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205042421U Expired - Fee Related CN201837612U (en) | 2010-08-25 | 2010-08-25 | Ultrasonic flaw detecting device for fillet welds of tube seats of short radial tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445076A (en) * | 2017-12-29 | 2018-08-24 | 渤海造船厂集团有限公司 | One kind being based on T shape fillet weld transversal crack ultrasonic detection methods |
-
2010
- 2010-08-25 CN CN2010205042421U patent/CN201837612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445076A (en) * | 2017-12-29 | 2018-08-24 | 渤海造船厂集团有限公司 | One kind being based on T shape fillet weld transversal crack ultrasonic detection methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |