CN215179810U - Device for determining one-time transillumination length of ray detection - Google Patents

Abstract

The utility model discloses a device that is used for radiographic inspection to once transilluminate length and confirms, the device includes: a fixing rod 1; the rotating rod 2 is hinged with one end of the fixing rod 1; the K value dial 3 is connected with the fixed rod 1, and the K value dial 3 is arranged at one end close to a hinged point of the fixed rod 1 and the rotating rod 2; wherein, the fixed rod 1 and the rotating rod 2 are both components with adjustable length. The device simple structure and convenient operation, confirm focus and transillumination thickness according to standard requirement than the back, can obtain transillumination length once fast and accurately, saved loaded down with trivial details calculation process, can show and improve detection efficiency, can solve the problem that the once transillumination length of ray detection was confirmed such as dull and stereotyped welding sample or barrel welding longitudinal weld better.

Description

Device for determining one-time transillumination length of ray detection

Technical Field

The utility model relates to a ray detection technical field especially relates to a device that is used for ray detection to transilluminate length determination once.

Background

In the radiation inspection, X-rays or γ -rays are industrially used to penetrate through an object to be inspected to inspect whether or not there are defects or defective properties in the object to be inspected. The different inside of the detected object causes different ray attenuation degrees, so that the transmitted ray intensities of different parts of the detected object are different. The nature and distribution of the internal defects of the object can be determined by detecting the intensity of the transmitted radiation with a certain detector, such as a film. Ray detection belongs to one of five conventional nondestructive detection methods.

The primary transillumination length refers to the effective length of the primary transillumination of the welding line radiographic inspection, in order to ensure the inspection quality, the radiographic inspection related standard specifies the transillumination thickness ratio of the welding joints of different inspection levels and different types, and indirectly limits the size of the primary transillumination length, for example, the transillumination thickness ratio K is less than or equal to 1.03 and the transillumination thickness ratio K is less than or equal to 1.01 in the A-level and AB-level technical levels of the specified longitudinal welding joints in NB/T47013.2. In the prior art, the primary transillumination length is usually obtained by adopting a formula calculation mode.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the method of formula calculation is adopted to obtain the one-time transillumination length, which is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a device for determining a primary transillumination length of ray detection, and aims to solve the technical problems that in the prior art, the primary transillumination length is obtained in a formula calculation mode, and time and labor are wasted.

In a first aspect, there is provided an apparatus for radiographic inspection transillumination length determination, the apparatus comprising: a fixing rod 1; the rotating rod 2 is hinged with one end of the fixing rod 1; the K value dial 3 is connected with the fixed rod 1, and the K value dial 3 is arranged at one end close to a hinged point of the fixed rod 1 and the rotary rod 2; wherein, the fixed rod 1 and the rotating rod 2 are both components with adjustable length.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the apparatus for determining a primary transillumination length for radiation detection further includes: through-hole 5, set up in rotary rod 2, through-hole 5 set up in being close to the one end of pin joint, through-hole 5 acquires the numerical value of K value dial plate 3.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the apparatus for determining a primary transillumination length for radiation detection further includes: and the tightening piece 4 is used for tightening the fixing rod 1 and the fixing rod 2 after the fixing rod 2 and the fixing rod 1 form a certain included angle according to a preset K value.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the through hole 5 is disposed at a central axis passing through the rotating rod 2.

With reference to the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, a portion of the rotating rod 2 close to the hinge point is a single pipe joint.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the remaining part of the rotating rod 2 is an extensible sleeve, and the fixing rod 1 is an extensible sleeve.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the K-value dial 3 is a circular arc, and a curvature of the K-value dial 3 is an inverse of a length between the hinge point and a fixed point of the K-value dial 3.

With reference to the first aspect, in a seventh possible implementation manner of the first aspect, a zero-scale position of the K-value dial 3 coincides with a central axis of the fixing rod 1.

With reference to the first aspect, in an eighth possible implementation manner of the first aspect, the scale values of the K-value dial 3 include, but are not limited to: 1.01, 1.03, 1.06, 1.1 or 1.2.

With reference to the first aspect, in a ninth possible implementation manner of the first aspect, the fixing rod 1 and the K-value dial 3 are designed as an integrated body.

The device for confirming the one-time transillumination length of the ray detection provided by the embodiment of the disclosure can realize the following technical effects:

the device simple structure and convenient operation, confirm focus and transillumination thickness according to standard requirement than the back, can obtain transillumination length once fast and accurately, saved loaded down with trivial details calculation process, can show and improve detection efficiency, can solve the problem that the once transillumination length of ray detection was confirmed such as dull and stereotyped welding sample or barrel welding longitudinal weld better.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures, and not by way of limitation, in which elements having the same reference numeral designations are shown as similar elements and not to scale, and in which:

FIG. 1 is a schematic diagram of a one-time transillumination length description provided by an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of an apparatus for determining a primary transillumination length of a ray detection provided by an embodiment of the present disclosure;

FIG. 3 is another schematic diagram of the structure of the apparatus for determining the primary transillumination length of the radiation detection provided by the embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a K-value dial provided in an embodiment of the present disclosure.

In the drawings, the parts names represented by the respective reference numerals are listed as follows:

1: fixing the rod; 2: rotating the rod; 3: a K value dial; 4: tightening the fastening piece; 5: and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is to be understood that the terms "inner", "outer", "upper", "lower", "front", "rear", and the like, are used in the positional relationship shown in the drawings for convenience in describing the embodiments of the present disclosure and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Fig. 1 is a schematic diagram of a one-time transillumination length description provided by an embodiment of the present disclosure. As shown in fig. 1, isDetecting object 9, ray source d, focal length F, F is the distance between ray source d and the side surface of ray source of detected object 9, L is the one-time transillumination length, T1 is the minimum thickness of ray beam passing through detected object 9 in the one-time transillumination length range, T2 is the maximum thickness of ray beam passing through detected object 9 in the one-time transillumination length range, the ratio of T1 to T2 is transillumination thickness ratio K, according to the formula,

further, the primary transillumination length L was obtained as 2 × f × tg θ. In the prior art, firstly, an allowable transillumination thickness ratio K is determined according to standard requirements, a primary transillumination length L is calculated according to the formula, then a corresponding length is measured on the surface of the object 9 to be detected by using a measuring ruler, and a marking pen is used for marking.

Fig. 2 is a schematic structural diagram of an apparatus for determining a primary transillumination length for radiation detection provided by an embodiment of the present disclosure. As shown in fig. 1, an embodiment of the present disclosure provides an apparatus for radiographic inspection transillumination length determination, the apparatus including: a fixing rod 1; the rotating rod 2 is hinged with one end of the fixing rod 1; the K value dial 3 is connected with the fixed rod 1, and the K value dial 3 is arranged at one end close to a hinged point of the fixed rod 1 and the rotating rod 2; wherein, the fixed rod 1 and the rotating rod 2 are both components with adjustable length. The K-value dial 3 may be provided at an appropriate position of the upper section of the fixing lever 1 as shown in fig. 2.

As shown in fig. 2, in practical application, the fixing rod 1 is placed perpendicular to the detected weld bead, as shown in fig. 2, after the focal length and transillumination thickness ratio K is determined according to the standard requirement, the length of the fixing rod 1 is determined, the fixing rod 1 is placed at a position a, the rotating rod 2 is rotated to a position K corresponding to the K value table disk 3, the rotating rod 2 is elongated to the detected object 9, a first intersection point B of the rotating rod 2 and the detected object 9 is obtained, then the rotating rod 2 is rotated to a position K corresponding to the other side of the K value table disk 3, a second intersection point C of the rotating rod 2 and the detected object 9 is obtained, marking pens are respectively used at the positions B and C, and the distance between BC is the one-time transillumination length.

The device for confirming the one-time transillumination length of the ray detection provided by the embodiment of the disclosure can realize the following technical effects: the device has simple structure and convenient operation; after the focal length-transillumination thickness ratio K is determined according to standard requirements, the one-time transillumination length can be quickly and accurately obtained, a complex calculation process is omitted, and the detection efficiency can be remarkably improved.

In some embodiments, the foregoing apparatus for determining a transillumination length for radiation detection further includes: through-hole 5 sets up in rotary rod 2, and through-hole 5 sets up in the one end that is close to the pin joint, acquires the numerical value of K value table dish 3 through-hole 5. The value of the K value table 3 can be conveniently read by providing the through hole 5.

In some embodiments, the foregoing apparatus for determining a transillumination length for radiation detection further includes: tightening piece 4 connects dead lever 1 and rotary rod 2, and tightening piece 4 is used for after rotary rod 2 forms certain contained angle with dead lever 1 according to predetermineeing K value, fastens rotary rod 2 and dead lever 1. The tightening member 4 may be a tightening nut. The rotating rod 2 and the fixing rod 1 are fixed by the tightening member 4.

In some embodiments, the through-hole 5 is provided at a central axis passing through the rotating rod 2. Thus, the setting of the K value is more accurate.

In some embodiments, the portion of the rotating rod 2 near the hinge point is a single length of tube. In this way, it may be convenient to provide the through hole 5 at the central axis of the rotating rod 2.

In some embodiments, the remaining part of the rotating rod 2, except for the individual nodes, is a telescopic sleeve and the fixed rod 1 is a telescopic sleeve. The telescopic sleeve is arranged, the lengths of the fixed rod 1 and the rotary rod 2 can be adjusted, and the device for determining the primary transillumination length of the ray detection can be suitable for application scenes with different focal lengths.

In some embodiments, the K-value dial 3 is circular and the curvature of the K-value dial 3 is the inverse of the length between the hinge point and the fixed point of the K-value dial 3.

In some embodiments, the zero scale position of the K-value dial 3 coincides with the central axis of the fixing rod 1. Thus, the setting of the value K can be made more accurate.

In some embodiments, the K value table 3 scale values include, but are not limited to: 1.01, 1.03, 1.06, 1.1 or 1.2, etc. are commonly used K values. In practical application, a person skilled in the art can set the value K to a value required to be set according to actual requirements. According to the formula theta ═ cos^-1×K^-1The included angles between the central axes of the fixed rod 1 and the rotating rod 2 corresponding to the K values are 8.07 degrees, 13.86 degrees, 19.37 degrees, 24.62 degrees and 33.56 degrees respectively.

In some embodiments, the fixing bar 1 is designed integrally with the K-value dial 3.

Fig. 3 is another schematic diagram of the structure of the apparatus for determining the primary transillumination length of the radiation detection provided by the embodiment of the present disclosure. Fig. 4 is a schematic structural diagram of a K-value dial provided in an embodiment of the present disclosure. As shown in fig. 2 to 4, the object 9 may be a weld, for example, a weld with a detection thickness T of 20mm, and the length of the fixing rod 1, i.e., the length of OA in fig. 2 and the position of the rotating rod 2 are first set according to the requirements of the standard on the focal length F and the transillumination thickness ratio K. For example, if the standard required focal length F is greater than or equal to 600mm and the transillumination thickness ratio K is less than or equal to 1.2, the length of the fixing rod 1 is OA-580 mm, where OA-F-T-600-20-580, the rotating rod 2 is rotated to 1.2 scales of the K-value table 3, so that 1.2 scales of the K-value table 3 are located at the middle position of the through hole 5, and then the length of the rotating rod 2 is adjusted, so that the rotating rod 2 and the object 9 to be detected are handed to a point B, similarly, on the other side of the fixing rod 1, the rotating rod 2 and the object 9 to be detected are handed to a point C, and the length BC is a primary transillumination length. Lead lap joint marks are placed at two points B, C, the focus of the radiation source is placed at the point O for transillumination detection, the focal length F is 600mm, the transillumination thickness ratio K is 1.2, when the focus of the radiation source is placed right above the point O, the focal length F is more than 600mm, and the transillumination thickness ratio K is less than 1.2. Thus, the device has simple structure and convenient operation; after the focal length-transillumination thickness ratio K is determined according to standard requirements, the one-time transillumination length can be quickly and accurately obtained, a complex calculation process is omitted, and the detection efficiency can be remarkably improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. An apparatus for radiographic inspection transillumination length determination, comprising:

a fixing rod (1);

the rotating rod (2) is hinged with one end of the fixing rod (1);

the K value dial (3) is connected with the fixed rod (1), and the K value dial (3) is arranged at one end close to a hinged point of the fixed rod (1) and the rotary rod (2);

wherein, the fixed rod (1) and the rotating rod (2) are both components with adjustable length.

2. The apparatus of claim 1, further comprising:

through-hole (5), set up in rotary rod (2), through-hole (5) set up in being close to the one end of pin joint, through-hole (5) acquire the numerical value of K value dial plate (3).

3. The apparatus of claim 1 or 2, further comprising:

screwing piece (4), connect dead lever (1) with rotary rod (2), screwing piece (4) be used for rotary rod (2) with dead lever (1) form certain contained angle back according to predetermineeing K value, will rotary rod (2) with dead lever (1) fastening.

4. The device according to claim 2, characterized in that the through hole (5) is provided at a central axis through the rotary rod (2).

5. The device according to claim 2, characterized in that the part of the rotating lever (2) close to the hinge point is a single length of tube.

6. The device according to claim 5, characterized in that the rest of the rotating rod (2) is a telescopic sleeve and the fixed rod (1) is a telescopic sleeve.

7. The device according to claim 1, characterized in that the K-value dial (3) is circular arc shaped, the curvature of the K-value dial (3) being the inverse of the length between the hinging point and a fixed point of the K-value dial (3).

8. The device according to claim 1, characterized in that the zero scale position of the K-value dial (3) coincides with the central axis of the fixed lever (1).

9. The device according to claim 8, characterized in that the scale values of the K-value dial (3) include, but are not limited to: 1.01, 1.03, 1.06, 1.1 or 1.2.

10. The device according to claim 1, characterized in that the fixing bar (1) is of integral design with the K-value dial (3).

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