Mobile radiation detection device

Abstract

The utility model relates to movable radiation detection equipment, which comprises a movable mounting rack (1); the radiation detector (2) is movably mounted on the movable mounting rack (1) relative to the movable mounting rack (1), and the radiation detector (2) is used for detecting the radiation type and / or radiation dose of an object to be detected; the adjusting device is arranged between the radiation detector (2) and the movable mounting frame (1) and is used for adjusting the height and / or angle of the radiation detector (2) relative to the movable mounting frame (1); when the mobile radiation detection equipment detects an object to be detected, the radiation detector (2) is close to and aligned with the object to be detected by moving the movable mounting rack (1) and adjusting the height and / or angle of the radiation detector (2) relative to the movable mounting rack (1).

Description

Technical Field

[0001] The utility model relates to the technical field of radiation detection, in particular to a mobile radiation detection device. Background Art

[0002] Radiation detection is often required in some special places. For example, radiation detection is often required for pipelines, storage facilities, containers or waste materials in nuclear power plants, nuclear facilities or uranium processing plants. Before overhauling nuclear power plants and nuclear facilities, radiation detection is often required for the walls of buildings and structures, immovable equipment, radiation rooms, radiation containers and the ground. Radiation detection is also often required for some vehicles that transport nuclear waste and conduct chemical analysis and purification activities on abnormal items. For some large objects to be tested or objects to be tested that are difficult to transfer, the existing radiation detection methods mostly adopt the scheme of sampling the objects to be tested and sending the samples to the laboratory for testing. Different sampling amounts, different selection of sampling points, and the length of time for testing may all affect the test results. The sampling and testing scheme is often difficult to truly reflect the actual radiation situation of the objects to be tested. Summary of the invention

[0003] The utility model aims to provide a mobile radiation detection device which can more accurately and more effectively detect the radiation conditions of a large object to be detected or an object to be detected which is difficult to transfer.

[0004] The utility model discloses a mobile radiation detection device, comprising:

[0005] Removable mounting frame;

[0006] A radiation detector, movably mounted on the movable mounting frame relative to the movable mounting frame, the radiation detector is used to detect the radiation type and / or radiation dose of the object to be detected;

[0007] an adjusting device, disposed between the radiation detector and the movable mounting frame, for adjusting the height and / or angle of the radiation detector relative to the movable mounting frame;

[0008] Wherein, when the mobile radiation detection device detects the object to be detected, the movable mounting frame is moved and the height and / or angle of the radiation detector relative to the movable mounting frame is adjusted so that the radiation detector is close to and aligned with the object to be detected.

[0009] In some embodiments, the adjustment device includes an angle adjustment component for adjusting the angle of the radiation detector relative to the movable mounting frame and a height adjustment component for adjusting the height of the radiation detector relative to the movable mounting frame, the height adjustment component includes a first connecting part fixedly connected to the movable mounting frame, a first adjustment part movable in a height direction relative to the first connecting part, and a height adjustment mechanism for adjusting the height of the first adjustment part relative to the first connecting part, and the radiation detector is connected to the first adjustment part via the angle adjustment component.

[0010] In some embodiments, the height adjustment mechanism includes a lead screw extending in a vertical direction and rotatably mounted on the first connecting portion relative to the first connecting portion, and a nut threadably matched with the lead screw, wherein the nut is fixedly connected to the first adjustment portion.

[0011] In some embodiments, the first connecting portion is a vertical arm extending in the vertical direction, and the height adjustment mechanism also includes a handwheel whose axis is in the horizontal direction and rotatable relative to the vertical arm, a first bevel gear fixedly connected to the handwheel, and a second bevel gear fixedly connected to the lead screw and coaxially arranged, and the first bevel gear and the second bevel gear are meshed.

[0012] In some embodiments, the angle adjustment assembly includes a rotating shaft fixedly connected to the first adjustment part, a turntable rotatably arranged around the rotating shaft, and a locking mechanism for locking or opening the relative rotational relationship between the turntable and the first adjustment part, and the radiation detector is connected to the turntable so as to rotate following the turntable.

[0013] In some embodiments, the locking mechanism includes a plurality of first holes arranged along the circumference of the turntable, one or more second holes provided on the first adjusting part, and a latch, wherein the latch is simultaneously inserted into one of the first holes and one of the second holes to lock the relative rotational relationship between the turntable and the first adjusting part, or the latch is not simultaneously inserted into the first hole and the second hole to open the relative rotational relationship between the first adjusting part.

[0014] In some embodiments, the adjustment device adjusts the radiation detector to rotate around a horizontal direction.

[0015] In some embodiments, the radiation detector is a high purity germanium gamma spectrometer.

[0016] In some embodiments, the movable mounting frame includes a plurality of walking wheels disposed at the bottom.

[0017] In some embodiments, an alignment detection component is further included on the radiation detector, and the alignment detection component is used to detect whether the radiation detector is aligned with the object to be detected.

[0018] In some embodiments, the alignment detection component includes a laser emitter disposed on a radiation detector.

[0019] Based on the mobile radiation detection equipment provided by the utility model, by moving the movable mounting frame and adjusting the height and / or angle of the radiation detector relative to the movable mounting frame, the radiation detector is brought close to and aligned with the object to be detected, thereby accurately and effectively detecting the radiation of large objects to be detected or objects to be detected that are difficult to move, and obtaining more realistic radiation situation data at the scene to be detected.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a mobile radiation detection device according to some embodiments of the utility model;

[0023] Figure 2 for Figure 1 A schematic structural diagram of the mobile radiation detection device from another angle is shown. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0029] The mobile radiation detection device of this embodiment includes a movable mounting frame 1 and a radiation detector 2 .

[0030] The movable mounting frame 1 is a movable mounting frame, which can be moved by setting a walking mechanism at the bottom, such as walking wheels, tracks, etc. The mounting frame can also be set on other mobile devices to achieve movement, for example, the mounting frame is placed on a movable trolley to achieve movement.

[0031] The radiation detector 2 is movably mounted on the movable mounting frame 1 relative to the movable mounting frame 1, and the radiation detector 2 is used to detect the radiation type and / or radiation dose of the object to be tested. In some embodiments, the radiation detector only detects the radiation type of the object to be tested, for example, the radiation type is α-ray, β-ray or γ-ray, etc. In some embodiments, the radiation detector only detects the radiation dose of the object to be tested, for example, the radiation detector is a radiation detector specifically used to detect the γ-ray dose of nuclear radiation, which can be used to detect the γ-ray dose radiated by the object to be tested. In some embodiments, the radiation detector can detect the radiation type and radiation dose of the object to be tested at the same time. In some embodiments, the radiation detector includes a neutron dosimeter, an Xγ radiation meter, a low background αβ meter, a surface αβ contamination meter, etc.

[0032] The adjusting device is arranged between the radiation detector 2 and the movable mounting frame 1, and the adjusting device is used to adjust the height and / or angle of the radiation detector 2 relative to the movable mounting frame 1. The adjusting device makes the radiation detector 2 move relative to the movable mounting frame 1 to adjust the height or angle of the radiation detector 2 relative to the movable mounting frame 1, or can adjust both the height and the angle of the radiation detector 2 relative to the movable mounting frame 1, so that when the mobile radiation detection device detects the object to be detected, the radiation detector 2 can be moved close to the object to be detected and aligned with the object to be detected by moving the movable mounting frame 1 and adjusting the height and / or angle of the radiation detector 2 relative to the movable mounting frame 1. When the radiation detector 2 approaches the object to be detected from different positions and aligns with the object to be detected from different directions to detect the object to be detected, the radiation conditions of the object to be detected in different directions can be obtained. When the object to be detected is a space environment such as a factory building or a warehouse, by adjusting the angle and / or position of the radiation detector, the radiation conditions of the space environment can be detected from multiple angles and multiple positions, and the radiation type and / or radiation dose of the space environment can be obtained more accurately.

[0033] The mobile radiation detection device of this embodiment moves the movable mounting frame 1 and adjusts the height and / or angle of the radiation detector 2 relative to the movable mounting frame 1 so that the radiation detector 2 is close to and aligned with the object to be tested. This can accurately and effectively detect the radiation of large objects to be tested or objects to be tested that are difficult to move, or objects to be tested that are inconvenient to be tested in the laboratory, thereby obtaining more realistic radiation situation data at the site to be tested.

[0034] In some embodiments, Figure 1 and Figure 2As shown, the adjustment device includes an angle adjustment component for adjusting the angle of the radiation detector 2 relative to the movable mounting frame 1 and a height adjustment component for adjusting the height of the radiation detector 2 relative to the movable mounting frame 1. The height adjustment component includes a first connecting portion 31 fixedly connected to the movable mounting frame 1, a first adjusting portion 32 movable in the height direction relative to the first connecting portion 31, and a height adjustment mechanism for adjusting the height of the first adjusting portion 32 relative to the first connecting portion 31. The radiation detector 2 is connected to the first adjusting portion 32 through the angle adjustment component. The adjustment device of this embodiment can adjust the angle of the radiation detector 2 through the angle adjustment component. After adjusting the height of the first adjusting portion relative to the first connecting portion, the first adjusting portion drives the angle adjustment component to adjust the height relative to the first connecting portion, thereby also driving the height of the radiation detector 2 connected to the angle adjustment component relative to the first connecting portion, that is, the height relative to the movable mounting frame 1.

[0035] In some embodiments, Figure 1 and Figure 2 As shown, the height adjustment mechanism includes a lead screw extending in the vertical direction and rotatably mounted on the first connection part 31 relative to the first connection part 31, and a nut threadedly matched with the lead screw, and the nut is fixedly connected to the first adjustment part 32. By providing the lead screw and nut mechanism, the height of the first adjustment part 32 fixedly connected to the nut relative to the first connection part can be adjusted by rotating the lead screw during adjustment.

[0036] In some embodiments, Figure 1 and Figure 2 As shown, the first connecting part 31 is a vertical arm extending in the vertical direction, and the height adjustment mechanism also includes a hand wheel 33 whose axis is in the horizontal direction and can rotate relative to the vertical arm, a first bevel gear fixedly connected to the hand wheel 33, and a second bevel gear fixedly connected to the lead screw and coaxially arranged with the lead screw, and the first bevel gear and the second bevel gear are meshed. By turning the hand wheel, the first bevel gear can be rotated, and then the second bevel gear is rotated by the meshing of the first bevel gear and the second bevel gear, and then the lead screw is rotated, so that the height of the nut can be adjusted. In some embodiments, the lead screw nut mechanism is a lead screw nut mechanism with a self-locking function. When the height of the nut and the radiation detector is adjusted by rotating the hand wheel, the nut and the radiation detector can be self-locked at the height. In some embodiments, the lead screw nut mechanism does not have a self-locking function. At this time, a latch can be set to fix the position of the hand wheel after rotation, or an elastic clamping device can be set to clamp the hand wheel so that the position of the hand wheel remains fixed, so that the radiation detector maintains the adjusted height. This embodiment manually adjusts the height of the radiation detector by the hand wheel, which is flexible and convenient.

[0037] In some embodiments, the height adjustment mechanism may also be a worm gear mechanism, which drives the worm wheel to rotate by a hand wheel to adjust the position of the worm extending in the vertical direction, thereby adjusting the height of the first adjustment part fixedly connected to the worm.

[0038] In some embodiments, Figure 1 and Figure 2 As shown, the angle adjustment assembly includes a rotating shaft fixedly connected to the first adjustment part 32, a rotating disk 41 rotatably arranged around the rotating shaft, and a locking mechanism for locking or unlocking the relative rotation relationship between the rotating disk 41 and the first adjustment part 32. The radiation detector 2 is connected to the rotating disk 41 so as to rotate along with the rotating disk 41. The rotating disk 41 and the rotating shaft can be connected by setting a bearing. The rotating disk 41 and the radiation detector can be directly fixedly connected or transmitted by means of gear transmission or the like. In the embodiment shown in the figure, the rotating disk 41 is directly fixedly connected to the radiation detector. Manually rotating the rotating disk 41 can drive the radiation detector to adjust the angle.

[0039] In some embodiments, the locking mechanism includes a plurality of first holes 411 arranged along the circumference of the rotating disk 41, one or more second holes arranged on the first adjusting portion 32, and a latch, the latch is inserted into one first hole 411 and one second hole at the same time to lock the relative rotation relationship between the rotating disk 41 and the first adjusting portion 32, or the latch is not inserted into the first hole 411 and the second hole at the same time to open the relative rotation relationship between the first adjusting portion 32. Figure 2 In the illustrated embodiment, the first adjustment portion 32 is a mounting seat, and the mounting seat is provided with second holes distributed along an arc and corresponding to the plurality of first holes 411. After the turntable rotates to an angle, the latch is inserted into the first hole and the second hole at the same time, so that the current angle of the turntable can be locked, so that the radiation detector maintains the adjusted angle. In some embodiments not shown in the figure, the locking mechanism includes an elastic clamping device, for example, an elastic clamping device fixedly connected to the first adjustment portion. When the turntable is rotated, the elastic clamping device presses the surface of the turntable, so that the turntable can be kept at the angle position.

[0040] In some embodiments, Figure 1 and Figure 2 As shown, the adjusting device adjusts the radiation detector 2 to rotate around the horizontal direction, so that the radiation detector can be adjusted around the horizontal direction and aimed at the object to be detected from different angles.

[0041] In some embodiments, the radiation detector 2 is a high-purity germanium gamma spectrometer. The high-purity germanium gamma spectrometer has the advantages of measuring a variety of nuclides, being able to perform qualitative and quantitative measurements, and having simple sample pretreatment. In some embodiments, the high-purity germanium gamma spectrometer is also provided with a UPS mechanism (Uninterruptible Power Supply), which can increase the endurance of the high-purity germanium gamma spectrometer.

[0042] In some embodiments, Figure 1 and Figure 2 As shown, the movable mounting frame 1 includes a plurality of running wheels 11 arranged at the bottom. In some embodiments, some of the running wheels 11 are universal wheels, which can increase the steering flexibility of the movable mounting frame 1.

[0043] In some embodiments, the mobile radiation detection device further includes an alignment detection component provided on the radiation detector 2, and the alignment detection component is used to detect whether the radiation detector 2 is aligned with the object to be detected. In some embodiments, the alignment detection component includes a laser emitter 21 provided on the radiation detector 2. The laser emitter emits a laser beam 211 as shown in the figure, and determines whether the radiation detector 2 is aligned with the object to be detected by determining whether the laser beam 211 is aligned with the object to be detected.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A mobile radiation detection device, characterized in that: include: A movable mounting frame (1); A radiation detector (2) is movably mounted on the movable mounting frame (1) relative to the movable mounting frame (1), and the radiation detector (2) is used to detect the radiation type and / or radiation dose of the object to be detected; an adjusting device, arranged between the radiation detector (2) and the movable mounting frame (1), and used for adjusting the height and / or angle of the radiation detector (2) relative to the movable mounting frame (1); When the mobile radiation detection device detects the object to be detected, the movable mounting frame (1) is moved and the height and / or angle of the radiation detector (2) relative to the movable mounting frame (1) is adjusted so that the radiation detector (2) is close to and aligned with the object to be detected.

2. The mobile radiation detection device according to claim 1, characterized in that: The adjustment device comprises an angle adjustment component for adjusting the angle of the radiation detector (2) relative to the movable mounting frame (1) and a height adjustment component for adjusting the height of the radiation detector (2) relative to the movable mounting frame (1); the height adjustment component comprises a first connecting portion (31) fixedly connected to the movable mounting frame (1), a first adjustment portion (32) movable in a height direction relative to the first connecting portion (31), and a height adjustment mechanism for adjusting the height of the first adjustment portion (32) relative to the first connecting portion (31); the radiation detector (2) is connected to the first adjustment portion (32) via the angle adjustment component.

3. The mobile radiation detection device according to claim 2, characterized in that: The height adjustment mechanism comprises a lead screw extending in a vertical direction and rotatably mounted on the first connecting portion (31) relative to the first connecting portion (31), and a nut threadably matched with the lead screw, wherein the nut is fixedly connected to the first adjusting portion (32).

4. The mobile radiation detection device according to claim 3, characterized in that: The first connecting portion (31) is a vertical arm extending in a vertical direction, and the height adjustment mechanism further comprises a hand wheel (33) whose axis is in a horizontal direction and rotatable relative to the vertical arm, a first bevel gear fixedly connected to the hand wheel (33), and a second bevel gear fixedly connected to the lead screw and coaxially arranged, the first bevel gear and the second bevel gear being meshed.

5. The mobile radiation detection device according to claim 2, characterized in that: The angle adjustment assembly comprises a rotating shaft fixedly connected to the first adjustment part (32), a rotating disk (41) rotatably arranged around the rotating shaft, and a locking mechanism for locking or unlocking the relative rotational relationship between the rotating disk (41) and the first adjustment part (32); the radiation detector (2) is connected to the rotating disk (41) in a rotational manner following the rotating disk (41).

6. The mobile radiation detection device according to claim 5, characterized in that: The locking mechanism comprises a plurality of first holes (411) arranged along the circumference of the rotating disk (41), one or more second holes arranged on the first adjusting portion (32), and a latch, wherein the latch is inserted into one of the first holes (411) and one of the second holes at the same time to lock the relative rotational relationship between the rotating disk (41) and the first adjusting portion (32), or the latch is not inserted into the first hole (411) and the second hole at the same time to open the relative rotational relationship between the first adjusting portion (32).

7. The mobile radiation detection device according to any one of claims 1 to 6, characterized in that: The adjusting device adjusts the radiation detector (2) to rotate around a horizontal direction.

8. The mobile radiation detection device according to any one of claims 1 to 6, characterized in that: The radiation detector (2) is a high-purity germanium gamma spectrometer.

9. The mobile radiation detection device according to any one of claims 1 to 6, characterized in that: The movable mounting frame (1) comprises a plurality of running wheels (11) arranged at the bottom thereof.

10. The mobile radiation detection device according to any one of claims 1 to 6, characterized in that: It also comprises an alignment detection component arranged on the radiation detector (2), wherein the alignment detection component is used to detect whether the radiation detector (2) is aligned with the object to be detected.

11. The mobile radiation detection device according to claim 10, characterized in that: The alignment detection component comprises a laser emitter (21) arranged on the radiation detector (2).

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