Gamma ray micro-radiation flaw detection application assembled landline and micro-radiation gamma ray combined flaw detector

Abstract

The utility model discloses a gamma ray micro-radiation flaw detection application assembly fixed-line machine and a micro-radiation gamma ray combined flaw detection machine. Wherein the micro-radiation gamma-ray combined flaw detection machine is composed of a gamma-ray micro-radiation flaw detection application assembly fixed-line machine, a guide rail part slidably mounted on the gamma-ray micro-radiation flaw detection application assembly fixed-line machine, and a portable straight-channel gamma-ray flaw detection machine in embedded butt joint with the grating shielding part. According to the technical scheme, the conventional portable straight-channel gamma ray flaw detector is simply and conveniently butted and combined, so that micro-radiation flaw detection application can be realized, the technical problems of high investment of multiple configurations, overstocked resources and waste caused by single application of various existing flaw detection equipment are solved, the safety performance is higher, and the application range is wide. And the safe radiation environment requirement of simultaneous operation on multiple work construction sites is met.

Description

Technical Field

[0001] The present patent application relates to a gamma ray flaw detector for non-destructive testing applications, and in particular to a gamma ray flaw detector for realizing micro-radiation applications. Background Art

[0002] The gamma ray flaw detector is equipped with a gamma ray radiation source to perform non-destructive imaging of the workpiece to determine whether there are defects inside the workpiece or quality defects in the welding part. It is an industrial non-destructive testing ray flaw detector. Among them, the most commonly used instrument type is the portable straight channel gamma ray flaw detector.

[0003] In this type of gamma-ray flaw detector, the radiation source is transported from the inside of the main unit to the designated filming position through a source guide tube by a driving device. The source guide tube is usually several meters to more than ten meters long. The source guide tube itself does not have a radiation shielding function, so the radiation source will irradiate all around during transportation. In order to avoid radiation damage during transportation, for large construction sites, such as nuclear power unit installation sites, in order to avoid serious radiation safety protection issues, it is necessary to require all construction workers of multiple types to avoid all work, which seriously delays the construction period.

[0004] For this purpose, a micro-radiation gamma-ray flaw detector has been developed, which has a micro-radiation irradiation window, and can shield the radiation outside the radiation irradiation window, and can be used for detection in construction sites where multiple types of work are working together. The micro-radiation gamma-ray flaw detector is mainly designed for special structural flaw detection, and is not suitable for most detection applications other than specific workpieces. For a variety of detection projects, both conventional portable gamma-ray flaw detectors and micro-radiation gamma-ray flaw detectors with different radiation specifications need to be equipped, resulting in the construction party needing to equip a variety of detection instruments and equipment with a large investment. After the current project is completed, the customized micro-radiation gamma-ray flaw detector will be useless, resulting in a backlog and waste of resources. Summary of the invention

[0005] The invention purpose of this patent application is to solve the technical problems that the existing flaw detection equipment is too single in application and requires multiple configurations, resulting in high investment, huge workload for equipment maintenance, backlog and waste of resources, and to provide a gamma-ray micro-radiation flaw detection application assembly station and a micro-radiation gamma-ray combination flaw detector.

[0006] The technical solution of the gamma-ray micro-radiation flaw detection application assembly machine disclosed in this patent application has the following main technical contents:

[0007] A gamma ray micro-radiation flaw detection application assembly base, which comprises a guide rail part, a support part and a grating shielding part;

[0008] The support portion is a fixed mounting seat of the grating shielding portion and is arranged at the front of the guide rail portion;

[0009] The grating shielding part is a gamma ray shielding body made of high-density material, which is provided with a radiation window and a source channel connected to the radiation window; the front end of the grating shielding part is a support mounting end fixedly assembled on the support part, and the rear end is a docking end engaged with the source output end face of the gamma ray flaw detector unit;

[0010] The source channel is a radiation source channel in the central axis of the grating shielding part. After the grating shielding part (3) is fixedly assembled with the support part, the source channel and the source transport channel of the gamma-ray flaw detector unit are located on the same channel extension line;

[0011] The guide rail portion is a movable slide rail of the gamma-ray flaw detector unit;

[0012] The bottom of the gamma ray flaw detector unit is provided with a sliding seat module which is slidably matched with the guide rail part.

[0013] In one preferred option of the above overall technical solution, the gamma-ray flaw detector unit is a portable straight-channel gamma-ray flaw detector.

[0014] One of the preferred options of the above-mentioned overall technical solution is that the guide rail portion has a ray window corresponding to the radiation window on its track bottom plate.

[0015] One of the preferred options of the above-mentioned overall technical solution is that the front section of the source channel is an adjustment channel for spirally assembling the positioning bolt, and the positioning bolt and the locking nut cooperate to lock the exposure position.

[0016] In one preferred option of the above overall technical solution, the slide module is detachably fixedly connected to the guide rail portion.

[0017] In one preferred option of the above overall technical solution, a limit baffle is provided at the rear of the slide module and is detachably fixed to the guide rail portion.

[0018] This patent application also provides a micro-radiation gamma-ray combination flaw detector, which is composed of a gamma-ray micro-radiation flaw detector application assembly base, and a portable straight-channel gamma-ray flaw detector that is slidably installed on the guide rail part of the gamma-ray micro-radiation flaw detector application assembly base and is engaged and docked with the grating shielding part.

[0019] The technical scheme of the gamma-ray micro-radiation flaw detection application assembly station and the micro-radiation gamma-ray combination flaw detection machine disclosed in this patent application is based on the application of conventional portable straight-channel gamma-ray flaw detection machines through simple docking and combination to realize the application of micro-radiation flaw detection, which solves the technical problem that the existing micro-radiation gamma-ray flaw detection machines must be configured for current special detection, but the utilization rate will be low in the future, resulting in multiple detection instrument configurations, large equipment investment, and serious resource backlog and waste for the construction party; the technical composition of this combination design utilizes the excellent safety and portability of the portable straight-channel gamma-ray flaw detection machine without changing the On the basis of changing its main structure, it is organically combined with the grating shielding part to realize the application of micro-radiation flaw detection. During the whole process of transporting the radiation source to the designated micro-radiation window, it is always in a safe shielding and protection state. When taking pictures, only the radiation window projects the flaw detection rays, and no radiation is generated in other directions around it. Therefore, it has higher safety performance and meets the requirements of a safe radiation environment for simultaneous operation of multiple types of construction sites. This combined design technology composition only requires the customization of corresponding gratings according to different micro-radiation requirements, and the grating cost is much lower than the current custom-made cost of micro-radiation gamma-ray flaw detectors, which further greatly reduces capital investment. The assembled landline in this solution is a conventional configuration equipment. The gamma-ray flaw detector unit is removed, and its original single flaw detection and use method does not change. Therefore, it greatly broadens the application range of portable straight-channel gamma-ray flaw detector models. This technical solution also has technical advantages such as flexible combination and disassembly methods and convenient assembly operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 , Figure 2 and Figure 3 They are the main view, left view and right view of the assembly structure of the micro-radiation gamma-ray combined flaw detector. Figure 1 It is a docking combination, that is, a working status diagram.

[0021] Figure 4 This is a cross-sectional structural diagram of the micro-radiation gamma-ray combined flaw detector, which is a diagram of the separated and non-working state.

[0022] Figure 5a , Figure 5b They are the front view and bottom view of the grating shielding part respectively.

[0023] Figure 6a , Figure 6b It is the front view and side view of the guide rail part.

[0024] Figure 7 This is a structural diagram of the bracket. DETAILED DESCRIPTION

[0025] The technical contents of the gamma-ray micro-radiation flaw detection application assembly base and the micro-radiation gamma-ray combination flaw detection machine of this patent application will be described in detail below through examples.

[0026] like Figure 1 As shown, the micro-radiation gamma-ray combined flaw detector of the present patent application is composed of a gamma-ray micro-radiation flaw detection application assembly base A and a gamma-ray flaw detector unit 4 docked and assembled with the gamma-ray micro-radiation flaw detection application assembly base A. The gamma-ray flaw detector unit 4 is preferably a portable straight-channel gamma-ray flaw detector.

[0027] The gamma-ray micro-radiation flaw detection application assembly base A comprises a guide rail portion 1, a support portion 2 and a grating shielding portion 3.

[0028] The support portion 2 is a fixed mounting seat for the grating shielding portion 3 and is vertically mounted on the front of the horizontal guide rail portion 1 ; the support portion 2 is provided with a mounting hole 14 for fixedly assembling with the grating shielding portion 3 .

[0029] The grating shielding part 3, such as Figure 1 and Figure 4 As shown, it is a gamma ray shielding body made of high-density material, and is provided with a radiation window 8 and a source channel 29. The grating shielding part 3 is fixedly mounted on the support part 2 by the support mounting end at the front end, and the rear end of the grating shielding part 3 is a docking end that is engaged with the source output end face of the gamma ray flaw detector unit 4.

[0030] The source channel 29 is provided in the central axial direction of the grating shielding part 3 for conveying the radiation source. The front section is the adjustment channel 18 for screw-fitting the positioning bolt 6, and the exposure position 9 in the middle leads to the radiation window 8. Before leaving the factory, the positioning bolt 6 is adjusted to determine the exposure position 9, and the locking nut 16 is used to lock the exposure position.

[0031] In this embodiment, the support mounting end is specifically a mounting end seat 21 that cooperates with the mounting hole 14 of the support part 2. After the mounting end seat 21 is inserted into the mounting hole 14, it is locked and fixed by the fixing pin 7 to complete the fixed installation of the grating shielding part 3, and then the protective cover 17 is used to close and protect the front end of the grating shielding part 3.

[0032] The guide rail portion 1, as shown in FIG6, is a movable slide rail of the gamma-ray flaw detector unit 4, and the front end of the rail bottom plate is provided with a fixing process hole 12 for bolting the support portion 2, and is also provided with a ray window 19 corresponding to the radiation window 8 of the grating shielding portion.

[0033] The gamma ray flaw detector unit 4 has a slide module 24 at the bottom thereof which is slidably matched with the guide rail portion 1. The gamma ray flaw detector unit 4 moves along the guide rail portion 1 close to the grating shield portion 3 until its source output end face is matched with the mating end of the grating shield portion 3.

[0034] In order to prevent the gamma-ray flaw detector unit 4 from accidentally falling off the track, the slide module 24 is detachably fixedly connected to the guide rail portion 1. In this embodiment, a limit baffle 5 is detachably fixed to the guide rail portion 1 behind the slide module 24, and the limit baffle 5 is fixed by a pin passing through a fixing hole 15 of the guide rail portion 1. Under the obstruction of the limit baffle 5, the gamma-ray flaw detector unit 4 is fixed in a docking state to prevent accidental separation from the guide rail portion 1. At this time, the source channel 10 of the gamma-ray flaw detector unit and the source channel 29 of the grating shielding part are connected and connected at the same channel extension line, the source channel 10 of the gamma-ray flaw detector unit is opened, and the radiation source 11 is transported from the inside of the machine to the exposure position 9 of the grating shielding part 3. Except for the radiation window 8, the grating shielding body 3 is shielded by solid shielding materials in all other directions, and no radiation is generated to the surrounding area; after the detection is completed, the driving device drives the radiation source 11 from the exposure position 9 of the grating shielding part 3 to the storage position of the source channel 10 of the gamma-ray flaw detector unit, and closes its source channel; when the gamma-ray flaw detector unit 4 needs to be used for flaw detection and inspection alone according to the original working mode, the rear limit baffle 5 is removed, and the gamma-ray flaw detector unit 4 slides backward along the guide rail part 1 and is separated from the grating shielding part 3, and can be used for detection and inspection according to the original working mode.

Claims

1. A gamma ray micro-radiation flaw detection application assembly station, characterized in that: The device comprises a guide rail portion (1), a support portion (2) and a grating shielding portion (3); The support portion (2) is a fixed mounting seat for the grating shielding portion (3) and is arranged at the front of the guide rail portion (1); The grating shielding part (3) is a gamma ray shielding body made of high-density material, and is provided with a radiation window (8) and a source channel (29) connected to the radiation window; the front end of the grating shielding part (3) is a support mounting end fixedly assembled on the support part (2), and the rear end is a mating end engaged with the source output end face of the gamma ray flaw detector unit (4); The source channel (29) is a radiation source channel in the central axis of the grating shielding part (3). After the grating shielding part (3) and the support part (2) are fixedly assembled, the source channel (29) and the source transport channel of the gamma-ray flaw detector unit (4) are located on the same channel extension line; The guide rail part (1) is a movable slide rail of the gamma-ray flaw detector unit; The gamma-ray flaw detector unit (4) is provided with a sliding seat module (24) at its bottom that is slidably matched with the guide rail portion.

2. The gamma ray micro-radiation flaw detection application assembly machine according to claim 1 is characterized in that: The gamma ray flaw detector unit (4) is a portable straight-channel gamma ray flaw detector.

3. The gamma ray micro-radiation flaw detection application assembly machine according to claim 1 is characterized in that: The rail bottom plate of the guide rail portion (1) is provided with a radiation window (19) corresponding to the radiation window (8).

4. The gamma ray micro-radiation flaw detection application assembly machine according to claim 1, characterized in that: The source channel (29) has a front section which is an adjustment channel (18) for spirally assembling a positioning bolt (6), and the positioning bolt (6) and the locking nut (16) cooperate to lock the exposure position (9).

5. The gamma ray micro-radiation flaw detection application assembly machine according to claim 1, characterized in that: The slide module (24) is detachably fixedly connected to the guide rail portion (1).

6. The gamma ray micro-radiation flaw detection application assembly machine according to claim 5, characterized in that: A limit baffle (5) is provided at the rear of the slide module (24) and is detachably fixed to the guide rail portion (1).

7. A micro-radiation gamma-ray combined flaw detector, characterized in that: The micro-radiation gamma-ray combined flaw detector is composed of a gamma-ray micro-radiation flaw detector application assembly base (A), a guide rail part (1) slidably mounted on the gamma-ray micro-radiation flaw detector application assembly base (A), and a portable straight-channel gamma-ray flaw detector which is engaged and docked with a grating shielding part (3).

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