CN202204416U - Small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler - Google Patents
Small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler Download PDFInfo
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- CN202204416U CN202204416U CN201120334037XU CN201120334037U CN202204416U CN 202204416 U CN202204416 U CN 202204416U CN 201120334037X U CN201120334037X U CN 201120334037XU CN 201120334037 U CN201120334037 U CN 201120334037U CN 202204416 U CN202204416 U CN 202204416U
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Abstract
Provided is a small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler, comprising two axial rulers of a Y shape and a vertical rule, wherein the two axial rulers are vertically arranged and have a same telescopic structure; the two axial rulers and the vertical ruler are both marked with scales. The small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler can directly and successfully determine once the placement of a ray machine in dependence on a small-diameter pipe 90 DEG bend pipe diameter and circumferential weld width, which not only can greatly minimize operation personnel labor intensity and save operation time, but also can be used for a plurality of 90 DEG small-diameter pipe bends with different diameters and wall thickness. Furtherly, the special-purpose ruler possesses the advantages of a simple structure, convenience in operation and low costs, etc.
Description
Technical field
The utility model belongs to technical field of nondestructive testing, employed the cannot-harm-detection device when particularly relating to a kind of transillumination small diameter tube 90 degree elbow both sides circumferential welded seams.
Background technology
In the pressure pipeline industry, usually caliber is called small diameter tube smaller or equal to the tubing of 100mm.According to JB/T4730-2005 " bearing device Non-Destructive Testing " standard code, need carry out Non-Destructive Testing to its both sides circumferential welded seam after the butt joint of small diameter tube elbow both sides hoop, to guarantee safety in utilization.The circumferential welded seam lossless detection method of small diameter tube elbow at present commonly used is by operating personnel X-ray machine X to be placed on the position of the small diameter tube elbow outside apart from circumferential welded seam certain distance and angle respectively; The oval circumferential welded seam egative film of two the double-walled slurs of taking pictures out at twice then, the last quality of confirming circumferential welded seam according to egative film.But there is following point in the circumferential welded seam lossless detection method of this prior art: when caliber, wall thickness and the residing position of small diameter tube not simultaneously, the putting position of X-ray machine X is different; Owing to there is not special-purpose X-ray machine X locating device at present; Therefore operating personnel place X-ray machine X fully by rule of thumb and take pictures in practical operation, so not only bring inconvenience to operating personnel, and the transillumination quality can't guarantee; Sometimes even need take pictures repeatedly repeatedly, the result wastes time and energy.
Summary of the invention
In order to address the above problem, the purpose of the utility model is to provide a kind of ray double-walled slur elliptic imaging transillumination special ruler that 90 degree elbow both sides circumferential welded seams are taken pictures of being convenient to operate and can once accomplish.
In order to achieve the above object, the small diameter tube that provides of the utility model 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers are made up of two axial chis and a miter square of being the setting of Y font; Wherein two axial chis vertically are provided with, and structure is identical and be the extension type structure, and all indicate scale on two axial chis and the miter square.
Maximum length when described axial chi is in extended state is greater than the distance of circumferential welded seam to two side pipe junction on the small diameter tube 90 degree elbows of maximum specification.
The length of described miter square greater than the product of the distance between two side pipe junction to the circumferential welded seams on the small diameter tube caliber of maximum specification and pipe bend diameter again divided by the value of 2 times of weld widths.
Small diameter tube that the utility model provides 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers can directly be determined the putting position of X-ray machine X according to small diameter tube 90 degree elbow calibers and circumferential welded seam width; And guarantee once success; Not only can reduce labor intensity of operating personnel significantly like this; Save the running time, and be applicable to 90 degree small diameter tube elbows of multiple different tube diameters and wall thickness.In addition, this special ruler also has advantages such as simple in structure, easy to operate and with low cost.
Description of drawings
The small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special ruler structural representations that Fig. 1 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers that the utility model provides are elaborated.
As shown in Figure 1, the small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers that the utility model provides are made up of two that are the setting of Y font axial chi A, B and a miter square C; Wherein two axial chi A, B vertically are provided with, and structure is identical and be the extension type structure, and all indicate scale on two axial chi A, B and miter square C.
Described axial chi A, the maximum length when B is in extended state are spent the distance of circumferential welded seam to two side pipe junction on the elbows greater than the small diameter tube 90 of maximum specification.
The length of described miter square C greater than the product of the distance between two side pipe junction to the circumferential welded seams on the small diameter tube caliber of maximum specification and pipe bend diameter again divided by the value of 2 times of weld widths.
The small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers that the utility model provides are according in JB/T4730-2005 " bearing device Non-Destructive Testing " standard small diameter tube circumferential welded seam transillumination being required: " during elliptic imaging, the A/F (weld seam projection maximum spacing up and down) that should control image is about 1 times of weld width." design.When needs utilize small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers that the utility model provides that small diameter tube 90 degree elbow both sides circumferential welded seams are carried out Non-Destructive Testing; At first by operating personnel with two axial chi A, B along both sides tubular axis on the small diameter tube 90 degree elbows to being placed on its excircle, and the junction of axial chi A, B is placed on the excircle of two side pipe corners.The front end that spurs axial chi A, B then respectively forward is so that its folding position expansion; Move on two side pipes butt joint ring to the commissure up to its front end; Afterwards, calculate this moment axially the product of length and the pipe bend diameter of chi A, B and on miter square C, find the position of this calculated value again divided by the value of 2 times of weld widths; At last the head focus level of X-ray machine X is placed on the position that miter square C should locate, selects to break forth after the exposure standard and satisfy the egative film of JB/T4730-2005 standard-required.
Claims (3)
1. a small diameter tube 90 is spent elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers, and it is characterized in that: described special ruler is two axial chis (A, B) and a miter square (C) formation that the Y font is provided with; Wherein two axial chis (A, B) are vertical is provided with, and structure is identical and be the extension type structure, and all indicates scale on two axial chis (A, B) and the miter square (C).
2. small diameter tube 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers according to claim 1, it is characterized in that: the maximum length of described axial chi (A, B) when being in extended state is greater than the distance of circumferential welded seam to two side pipe junction on the small diameter tube 90 degree elbows of maximum specification.
3. small diameter tube according to claim 1 90 degree elbow weld seam ray double-walled slur elliptic imaging transillumination special rulers is characterized in that: the length of described miter square (C) greater than the product of the distance between two side pipe junction to the circumferential welded seams on the small diameter tube caliber of maximum specification and pipe bend diameter again divided by the value of 2 times of weld widths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120334037XU CN202204416U (en) | 2011-09-06 | 2011-09-06 | Small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120334037XU CN202204416U (en) | 2011-09-06 | 2011-09-06 | Small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204416U true CN202204416U (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120334037XU Expired - Fee Related CN202204416U (en) | 2011-09-06 | 2011-09-06 | Small-diameter pipe 90 DEG bend weld ray double-wall double-image elliptic imaging transillumination special-purpose ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204416U (en) |
Cited By (3)
| 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 |
| WO2017195139A1 (en) * | 2016-05-10 | 2017-11-16 | Odish Rody Nowel | Tool for placement of markings |
| KR20190050629A (en) * | 2017-11-03 | 2019-05-13 | 진창언 | Y-shaped ruler for sketch |
-
2011
- 2011-09-06 CN CN201120334037XU patent/CN202204416U/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| 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 |
| WO2017195139A1 (en) * | 2016-05-10 | 2017-11-16 | Odish Rody Nowel | Tool for placement of markings |
| KR20190050629A (en) * | 2017-11-03 | 2019-05-13 | 진창언 | Y-shaped ruler for sketch |
| KR102026932B1 (en) * | 2017-11-03 | 2019-11-04 | 진창언 | Y-shaped ruler for sketch |
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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: 20120425 Termination date: 20140906 |
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| EXPY | Termination of patent right or utility model |