Radiation-resistant imaging device for nuclear power plant

Abstract

The utility model discloses an irradiation-resistant imaging device for a nuclear power plant. The irradiation-resistant imaging device comprises an upper cover body, a lower cover body, a connector piece, an irradiation-resistant movement module, a horizontal rotating motor, a vertical rotating motor, a camera shooting assembly and a transmission assembly. The upper cover body and the lower cover body of the radiation-resistant imaging device of the nuclear power plant are both made of radiation-resistant materials, good radiation shielding performance is achieved, the radiation-resistant machine core module is installed in the upper cover body, and it is ensured that the radiation-resistant machine core module can stably work for a long time in a high-radiation environment. In addition, the arrangement of the horizontal rotating motor and the vertical rotating motor enables the camera shooting assembly to have a horizontal 360-degree rotating function and a plus or minus 90-degree pitching function, so that the visual angle adjustment of the camera shooting assembly is more flexible, the observation range is greatly expanded, and the diversified requirements in the special environment of the nuclear power plant are met. And the working efficiency and the video inspection quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of radiation imaging, especially a nuclear power plant radiation imaging device. BACKGROUND

[0002] In high radiation environments such as nuclear power plants, radioactive laboratories, and irradiation stations, image acquisition and monitoring are crucial for safety management and equipment maintenance. However, existing imaging devices face numerous challenges in these special environments, severely limiting their application range. Major issues include insufficient radiation resistance, excessive size, subpar image quality (especially in low light conditions), lack of flexibility, and inadequate waterproofing. For example, while "A multi-degree-of-freedom underwater camera device" (CN221443871U) offers multi-degree-of-freedom functionality, it cannot operate for long periods in high-dose-rate environments; "A radiation-resistant video camera" (CN216774838U) has some radiation resistance but is too large to enter narrow spaces; "A radiation-resistant underwater camera device" (CN220156580U) addresses some waterproofing issues but still falls short in image quality and flexibility; and "A high-strength, radiation-resistant, compact gimbal high-definition camera" (CN216134521U) improves compactness and image quality but still needs better waterproofing. Therefore, developing an imaging device that combines radiation resistance, miniaturization, high image quality, flexibility, and waterproofing to meet the diverse needs of special environments such as nuclear power plants remains a challenging research topic. SUMMARY

[0003] The utility model wants to solve the technical problem in, provide a nuclear power plant radiation imaging device.

[0004] The utility model adopts the technical scheme to solve its technical problem: a nuclear power plant radiation imaging device is constructed, it includes upper cover body, lower cover body, joint piece, radiation resistant core module, horizontal rotation motor, vertical rotation motor, camera assembly and transmission assembly;

[0005] The lower cover body is located below the upper cover body, and the lower cover body can rotate horizontally relative to the upper cover body, both the upper cover body and the lower cover body are made of radiation-resistant materials, the joint piece is sealed and connected to the upper cover body, and the radiation-resistant core module is installed in the upper cover body.

[0006] The camera assembly is installed on the lower cover body, and the camera assembly can rotate vertically relative to the lower cover body.

[0007] The horizontal rotation motor is fixedly installed on the upper cover body, and an output end of the horizontal rotation motor is connected to the lower cover body, and the horizontal rotation motor is used for driving the lower cover body and the camera assembly to rotate horizontally.

[0008] The vertical rotation motor is fixedly installed in the lower cover body, and an output end of the vertical rotation motor is connected to the camera assembly through the transmission assembly, and the horizontal rotation motor is used for driving the camera assembly to rotate vertically.

[0009] In some embodiments, a plurality of sealing rings are arranged between the upper cover body and the lower cover body.

[0010] In some embodiments, the radiation-resistant core module comprises a core board, a power supply board and a sensor board.

[0011] The core board is connected to the power supply board through a first wire, and the power supply board is connected to the sensor board through a second wire.

[0012] In some embodiments, the joint member is in the shape of a circular truncated cone structure.

[0013] In some embodiments, the joint member is provided with a Luer.

[0014] In some embodiments, the camera assembly comprises a camera shell, a lens body and a light source.

[0015] The camera shell is installed at the lower part of the lower cover body and is connected to the transmission assembly, the lens body is installed in the camera shell, and the light source is installed at the front end of the lens body.

[0016] In some embodiments, the camera assembly further comprises optical glass and a control ring.

[0017] In some embodiments, the transmission assembly comprises a first bevel gear, a second bevel gear, a first transmission gear, a second transmission gear and a third transmission gear connected in sequence, the first bevel gear is connected to the output end of the vertical rotation motor, and the third transmission gear is connected to the camera shell.

[0018] In some embodiments, the nuclear power plant radiation-resistant imaging device further comprises a potentiometer installed in the lower cover body and used for measuring the rotation parameter of the vertical rotation motor.

[0019] In some embodiments, the diameter of the upper cover body and the diameter of the lower cover body are both 55mm to 60mm.

[0020] The utility model discloses the following beneficial effects are obtained: the upper cover body and the lower cover body of the nuclear power plant radiation-tolerant imaging device are made of radiation-tolerant material, which has good radiation shielding performance. The radiation-tolerant movement core module is installed in the upper cover body, ensuring that the radiation-tolerant movement core module can work stably for a long time in a high radiation environment. In addition, the horizontal rotating motor is fixedly installed in the upper cover body. The horizontal rotating motor can drive the lower cover body to rotate horizontally. The camera assembly installed on the lower cover body can also rotate horizontally. The vertical rotating motor installed in the lower cover body drives the camera assembly to rotate vertically. The camera assembly has horizontal 360° rotation function and positive and negative 90° pitch function, making the camera assembly's view angle adjustment more flexible and greatly expanding the observation range to meet the diversification needs in the special environment of the nuclear power plant, improving work efficiency and video inspection quality. BRIEF DESCRIPTION OF DRAWINGS

[0021] To make the technical solutions of the utility model clearer, the following will further describe the utility model with reference to the drawings and examples. It should be understood that the following drawings only show some embodiments of the utility model and should not be regarded as limiting the scope. Other related drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0022] Figure 1 is a perspective structural schematic diagram of the nuclear power plant radiation-tolerant imaging device in some embodiments of the utility model;

[0023] Figure 2 is a front view structural schematic diagram of the nuclear power plant radiation-tolerant imaging device in some embodiments of the utility model;

[0024] Figure 3 is an internal structural schematic diagram of the nuclear power plant radiation-tolerant imaging device in some embodiments of the utility model;

[0025] Figure 4 is a structural schematic diagram of the radiation-tolerant movement core module in some embodiments of the utility model;

[0026] Figure 5 is a structural schematic diagram of the transmission assembly and the camera assembly in some embodiments of the utility model;

[0027] Figure 6 is a structural schematic diagram of the camera assembly in some embodiments of the utility model. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and do not indicate that the devices or elements indicated must have a particular direction, so it cannot be understood as a limitation of the present application.

[0029] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly include one or more such features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Referring to Figures 1 to 6The utility model provides a kind of nuclear power plant radiation-tolerant imaging device in some embodiments of the utility model, it includes upper cover body 1, lower cover body 2, joint piece 3, radiation-tolerant movement core module 4, horizontal rotary motor 5, vertical rotary motor 6, camera assembly 7 and transmission assembly 8.Lower cover body 2 is below upper cover body 1 and lower cover body 2 can be rotated in horizontal direction relative to upper cover body 1, and upper cover body 1 and lower cover body 2 are made of radiation-tolerant material, joint piece 3 is sealingly connected on upper cover body 1, and radiation-tolerant movement core module 4 is installed in upper cover body 1;Camera assembly 7 is installed on lower cover body 2, and camera assembly 7 can be rotated in vertical direction relative to lower cover body 2;Horizontal rotary motor 5 is fixedly installed on upper cover body 1, and the output end of horizontal rotary motor 5 is connected to lower cover body 2, and horizontal rotary motor 5 is used to drive lower cover body 2 and camera assembly 7 to rotate in horizontal direction;Vertical rotary motor 6 is fixedly installed in lower cover body 2, and the output end of vertical rotary motor 6 is connected with camera assembly 7 through transmission assembly 8, and horizontal rotary motor 5 is used to drive camera assembly 7 to rotate in vertical direction.

[0031] As shown in Figures 1 to 3 The horizontal rotary motor 5 can drive lower cover body 2 and camera assembly 7 to rotate in horizontal direction together, that is, the horizontal direction 360 ° rotation function of camera assembly 7 is realized, and the vertical rotary motor 6 can drive camera assembly 7 to rotate in vertical direction, that is, the pitch rotation positive and negative 90 ° function of camera assembly 7 is realized, so as to improve the flexibility of camera assembly 7, and camera assembly 7 can shoot target image from various angles.

[0032] Understandably, the upper cover body 1 and the lower cover body 2 of the nuclear power plant radiation-resistant imaging device are made of radiation-resistant materials, which have good radiation shielding performance, and the radiation-resistant core module 4 is installed in the upper cover body 1, which ensures that the radiation-resistant core module 4 can work stably for a long time in a high radiation environment. In addition, the horizontal rotating motor 5 is fixedly installed in the upper cover body 1, which can drive the lower cover body 2 to rotate horizontally, so that the camera assembly 7 installed on the lower cover body 2 can also rotate horizontally with the lower cover body 2. At the same time, the vertical rotating motor 6 installed in the lower cover body 2 drives the camera assembly 7 to rotate vertically, so that the camera assembly 7 has a horizontal rotation function of 360° and a pitch function of ±90°, which makes the view angle adjustment of the camera assembly 7 more flexible and greatly expands the observation range, so as to meet the diversified needs in the special environment of the nuclear power plant and improve the work efficiency and the quality of video inspection.

[0033] The radiation-resistant material can be lead material, boron steel material or tungsten alloy material. The upper cover body 1 and the lower cover body 2 made of radiation-resistant material can make the total radiation dose of the nuclear power plant radiation-resistant imaging device reach 105Gy, and can withstand an environmental dose rate of 0-5000Gy / h, which ensures that the radiation-resistant core module 4 can work stably for a long time in a high radiation environment. The diameter of the upper cover body 1 and the diameter of the lower cover body 2 are both 55mm to 60mm, and the diameter of the upper cover body 1 and the diameter of the lower cover body 2 are both preferably 57mm. The length of the nuclear power plant radiation-resistant imaging device is 270mm, so as to facilitate entering various narrow spaces.

[0034] Further, a plurality of sealing rings are arranged between the upper cover body 1 and the lower cover body 2. The sealing ring can be an O-shaped sealing ring to ensure the sealing property between the upper cover body 1 and the lower cover body 2, and also can reduce the possibility of jamming. In the embodiment, the number of sealing rings is three. In addition, a waterproof coating can be coated on the surface of the upper cover body 1 and the lower cover body 2 to enhance the waterproof performance, so that the waterproof performance of the nuclear power plant radiation-resistant imaging device reaches IP68 waterproof level, and the nuclear power plant radiation-resistant imaging device can work continuously for more than three days under water depth of 30m or pressure of 3bar.

[0035] As Figure 4As shown, the radiation-resistant core module 4 includes a core board 41, a power board 42, and a sensor board 43. Specifically, the core board 41 and the power board 42 are the same size, both 66mm*28mm, while the sensor board 43 is circular with a diameter of 24mm. The core board 41 is connected to the power board 42 by a first wire 44, and the power board 42 is connected to the sensor board 43 by a second wire 45. The core board 41, the power board 42, and the sensor board 43 form the core of the imaging system that can work stably in a high radiation environment. The core board 41 contains the main processor and image processing unit, the power board 42 is responsible for providing stable power to the entire nuclear power plant radiation-resistant imaging device, and the sensor board 43 contains a large number of sensors and is a key component of image acquisition and motor control. The entire radiation-resistant core module 4 is lightweight, with the core board 41 weighing 10g, the power board 42 weighing 15g, and the sensor board 43 weighing 5g. Under the power of a 12V DC power supply, the entire radiation-resistant core module 4 has a power consumption of about 3.24W, with good energy efficiency.

[0036] As shown in Figure 1 The joint piece 3 is in the shape of a circular truncated cone structure, which is a waterproof joint. The joint piece 3 is sealingly connected to the upper part of the upper cover body 1 to prevent external water from entering the upper cover body 1. The design of the circular truncated cone structure of the joint piece 3 can avoid jamming when the nuclear power plant radiation-resistant imaging device is pulled out in a narrow underwater space. The joint piece 3 is provided with a gland 31, and the joint piece 3 is sealingly connected with the gland 31. The connection lines for power supply, data transmission, and control transmission of the nuclear power plant radiation-resistant imaging device can pass through the gland 31 to enter the inside of the upper cover body 1.

[0037] As shown in Figure 6 The camera assembly 7 includes a camera housing 71, a lens body 72, and a light source 73. The camera housing 71 is mounted on the lower part of the lower cover body 2 and is connected with the transmission assembly 8. The lens body 72 is installed in the camera housing 71, and the light source 73 is installed at the front end of the lens body 72. Specifically, the lens body 72 can be a radiation-resistant four-times continuous zoom lens. The lens body 72 is in the shape of a cylinder with a maximum diameter of 35mm and a total length of 52mm. In addition, the light source 73 can be a ring-shaped LED light source. The ring-shaped LED light source is designed with a threaded interface, which can be quickly installed and removed. The ring-shaped LED light source can be adjusted in the range of 0-100% to adapt to different environmental needs. It can provide a 400mm illumination coverage range underwater, so that the lens body 72 can capture a larger range of images, improve data acquisition efficiency, and ensure that high-quality images can also be obtained in a low-light environment. The total radiation dose of the ring-shaped LED light source can reach 106Gy, and it can withstand an environmental dose rate of 0-5000Gy / h, ensuring its continuous lighting capability in extreme radiation environments. In other embodiments, the light source 73 can also use an infrared LED light source to meet special spectral requirements.

[0038] The camera assembly 7 further comprises optical glass and a control ring. Specifically, the optical glass can be special radiation-resistant explosion-proof optical glass, which can ensure that the lens body 72 can still keep clear imaging under extreme environment. The control ring is used for adjusting the focal length and focusing of the lens body 72, so that the lens body 72 can realize accurate adjustment within a focal length range of 3-12 mm. In addition, the maximum aperture of the lens body 72 can reach F1.6, and it can work normally within a temperature range of-20℃ to 80℃. The lens body 72 can keep normal working under extreme conditions with a cumulative radiation dose of up to 105Gy. The lens body 72 has good radiation resistance, and the total radiation dose can reach 105Gy. It can withstand an environmental dose rate of 0-5000Gy / h.

[0039] As shown in Figure 5 The transmission assembly 8 comprises a first bevel gear 81, a second bevel gear 82, a first transmission gear 83, a second transmission gear 84 and a third transmission gear 85 connected in sequence. The first bevel gear 81 is connected with the output end of the vertical rotating motor 6, and the third transmission gear 85 is connected with the camera shell 71. The torque output by the vertical rotating motor 6 is transmitted to the camera shell 71 through the first bevel gear 81, the second bevel gear 82, the first transmission gear 83, the second transmission gear 84 and the third transmission gear 85 in sequence, so that the vertical rotating motor 6 can drive the camera assembly 7 to rotate as a whole.

[0040] Further, the nuclear power plant radiation-resistant imaging device further comprises a potentiometer 61 installed in the lower cover body 2 and used for measuring the rotation parameter of the vertical rotating motor 6. The potentiometer 61 can be connected with the output end of the vertical rotating motor 6 through a driving gear, so as to measure the rotation parameter of the vertical rotating motor 6. The rotation parameter can be a rotation angle.

[0041] It can be understood that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which all belong to the protection scope of the present application. Therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A nuclear power plant radiation tolerant imaging device, characterized by, The device comprises an upper cover body (1), a lower cover body (2), a joint piece (3), a radiation-resistant core module (4), a horizontal rotation motor (5), a vertical rotation motor (6), a camera assembly (7) and a transmission assembly (8). The lower cover body (2) is located below the upper cover body (1) and can rotate horizontally relative to the upper cover body (1), both the upper cover body (1) and the lower cover body (2) are made of radiation-resistant material, the joint piece (3) is sealingly connected to the upper cover body (1), and the radiation-resistant core module (4) is installed in the upper cover body (1). The camera assembly (7) is installed on the lower cover body (2) and can rotate vertically relative to the lower cover body (2). The horizontal rotation motor (5) is fixedly installed on the upper cover body (1) and has an output end connected to the lower cover body (2), and the horizontal rotation motor (5) is used to drive the lower cover body (2) and the camera assembly (7) to rotate horizontally. The vertical rotation motor (6) is fixedly installed in the lower cover body (2) and has an output end connected to the camera assembly (7) through the transmission assembly (8), and the horizontal rotation motor (5) is used to drive the camera assembly (7) to rotate vertically.

2. The nuclear power plant radiation tolerant imaging device of claim 1, wherein, A plurality of sealing rings are arranged between the upper cover body (1) and the lower cover body (2).

3. The nuclear power plant radiation tolerant imaging device of claim 1, wherein, The radiation-resistant core module (4) comprises a core board (41), a power supply board (42) and a sensor board (43). The core board (41) is connected to the power supply board (42) through a first wire (44), and the power supply board (42) is connected to the sensor board (43) through a second wire (45).

4. The nuclear power plant resistance imaging device of claim 1, wherein, The joint piece (3) has a circular truncated cone structure.

5. The nuclear power plant resistance imaging device of claim 1, wherein, The joint piece (3) is provided with a gran head (31).

6. The nuclear power plant resistance imaging device of claim 1, wherein, The camera assembly (7) comprises a camera shell (71), a lens body (72) and a light source (73). The camera shell (71) is installed at the lower part of the lower cover body (2) and connected to the transmission assembly (8), the lens body (72) is installed in the camera shell (71), and the light source (73) is installed at the front end of the lens body (72).

7. The nuclear power plant resistance imaging device of claim 1, wherein, The camera assembly (7) further comprises optical glass and a control ring.

8. The nuclear power plant radiation tolerant imaging device of claim 6, wherein, The transmission assembly (8) comprises a first bevel gear (81), a second bevel gear (82), a first transmission gear (83), a second transmission gear (84) and a third transmission gear (85) connected in sequence, the first bevel gear (81) is connected to the output end of the vertical rotation motor (6), and the third transmission gear (85) is connected to the camera shell (71).

9. The nuclear power plant resistance imaging device of claim 1, wherein, The device further comprises a potentiometer (61) installed in the lower cover body (2) and used to measure the rotation parameter of the vertical rotation motor (6).

10. The nuclear power plant radiation-tolerant imaging device of claim 1, wherein, The diameter of the upper cover body (1) and the diameter of the lower cover body (2) are both 55mm to 60mm.

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