Sampling device and detection system for spent fuel reprocessing plant

Abstract

This invention relates to the field of sampling technology and discloses a sampling device and detection system for spent fuel reprocessing plants. The sampling device for spent fuel reprocessing plants includes a guide rail, a support component, a rotating part, a connecting component, an aerosol collector, and a temperature and humidity collector. The guide rail is suitable for installation within the space to be tested. One end of the support component is movably mounted on the guide rail, with the direction of movement along the guide rail. The rotating part is rotatably mounted at the other end of the support component. The connecting component is connected to the rotating part and is movably mounted on the rotating part. The aerosol collector is fixed to the end of the connecting component. The temperature and humidity collector is located on one side of the guide rail. This invention uses the support component, rotating part, and connecting component to move the aerosol collector within the space to be tested for collection and analysis, and the temperature and humidity collector collects the temperature and humidity within the space to be tested. This allows for accurate detection of air quality and environmental conditions at different locations within the space to be tested, providing accurate information for personnel entering the space to be tested.

Description

Technical Field

[0001] This invention relates to the field of sampling technology, specifically to a sampling device and detection system for spent fuel reprocessing plants. Background Technology

[0002] Spent fuel reprocessing is a crucial process in nuclear energy utilization. In some process rooms within the spent fuel reprocessing plant, temperature and humidity vary significantly under different operating conditions. Improper handling of substances such as radioactive aerosols could pose a serious threat to the health of production and operation personnel.

[0003] In existing technologies, spent fuel reprocessing facilities, as a safety barrier, are key factors in ensuring the safe operation of the facility and the safety of personnel. Typically, air samples are first taken from the spent fuel facility, followed by analysis of the samples and measurement of temperature and humidity. This process determines the air quality and environmental conditions of the spent fuel reprocessing facility, providing a more accurate basis and direction for optimizing the ventilation system design and ensuring the safety of personnel entering the facility. However, simply sampling and measuring air quality and humidity within the spent fuel facility cannot provide a multi-dimensional, easily operable, and time-saving assessment of air quality and environmental conditions at different locations within the facility. Therefore, the sampling and testing method cannot provide an efficient and reliable basis for personnel entering the spent fuel facility for work. Summary of the Invention

[0004] In view of this, the present invention provides a sampling device and detection system for spent fuel reprocessing plant to solve the problem of the inability to efficiently and reliably detect air quality and environmental conditions at different locations within the spent fuel plant.

[0005] In a first aspect, the present invention provides a sampling device for a spent fuel reprocessing plant, comprising:

[0006] The guide rail is suitable for installation in the space to be tested;

[0007] A support member, one end of which is movably mounted on the guide rail, the direction of movement of the support member being along the direction of the guide rail;

[0008] A rotating part is rotatably located at the other end of the support member;

[0009] A connector is connected to the rotating part, and the connector is movably disposed on the rotating part;

[0010] An aerosol collector is fixed to the end of the connector;

[0011] A temperature and humidity sensor is located on one side of the guide rail.

[0012] Beneficial Effects: By using support components, rotating parts, and connecting parts to move the aerosol collector within the tested space for collection and analysis, and using a temperature and humidity collector to collect temperature and humidity data within the tested space, the system can accurately detect air quality and environmental conditions at different locations within the tested space. This provides accurate information for personnel entering the tested space, facilitating subsequent work by personnel when necessary and ensuring that personnel are not exposed to excessive radiation doses. Simultaneously, it can help assess the airflow distribution of the ventilation system within the tested space and adjust the air exchange rate under different temperature and humidity requirements. This effectively controls the temperature and humidity distribution within the tested space, reduces the concentration of radioactive aerosols, provides a suitable working environment, and ensures the safety of personnel and operational efficiency.

[0013] In one optional embodiment, a guide groove is provided on the guide rail along the direction of the guide rail; a slider is provided at the end of the support member corresponding to the guide groove, the slider is disposed in the guide groove and is adapted to move along the direction of the guide groove.

[0014] Beneficial effects: By moving the slider in the guide groove, the support component moves along the direction of the guide groove, which in turn moves the aerosol collector along the guide rail, ensuring accurate aerosol collection in each area of ​​the space to be tested, thereby enabling accurate detection of air quality and environmental conditions at different locations in the space to be tested.

[0015] In one optional embodiment, the end of the support member has a through hole corresponding to the connector, the rotating part includes a rotating shaft and a rotating seat, the rotating shaft passes through the through hole and is adapted to rotate within the through hole, the rotating seat is fixed to the end of the rotating shaft, and the connector is movably mounted on the rotating seat.

[0016] Beneficial effects: By rotating the shaft within the through hole, the rotating seat at the end of the shaft rotates, which in turn rotates the connecting parts on the rotating seat. This allows the aerosol collector to rotate at different angles on the support to detect the space under test, ensuring accurate aerosol collection in each area of ​​the space under test. This enables precise detection of air quality and environmental conditions at different locations within the space under test.

[0017] In one optional embodiment, the connector has a groove along its axial direction, the rotating seat has a clamping cavity, the connector passes through the clamping cavity, and a guide block is provided in the clamping cavity corresponding to the groove, the guide block being disposed in the groove.

[0018] Beneficial effects: By guiding the slide groove with the guide block, the connecting parts are adapted to slide within the clamping cavity, thereby adjusting the position of the aerosol collector. This allows the aerosol collector to move in the rotating part to detect the space to be tested, ensuring accurate aerosol collection in each area of ​​the space to be tested. Consequently, it enables precise detection of air quality and environmental conditions at different locations within the space to be tested.

[0019] In one alternative implementation, the two ends of the guide rail are connected to form a ring-shaped guide rail.

[0020] Beneficial effects: By setting the guide rail as a circular guide rail, the aerosol collector can circulate on the guide rail, thereby performing multiple tests on the same path in the detection space, ensuring the accuracy of aerosol collection and detection in the detection space.

[0021] In one alternative embodiment, the guide rail has a transition arc at the included angle.

[0022] Beneficial effect: By setting the included angle of the guide rail to an arc, the support can slide smoothly at the included angle of the guide rail, avoiding the support from getting stuck at the included angle of the guide rail.

[0023] In one alternative embodiment, a flexible support is also included, on which the temperature and humidity sensor is fixed.

[0024] Beneficial effects: By placing the temperature and humidity sensor on the flexible space, it is easy to adjust the three-dimensional position of the temperature and humidity sensor in the space to be tested, so that the temperature and humidity sensor can be easily adjusted and stably fixed at the precise position in the space to be tested.

[0025] In one optional embodiment, one end of the flexible support is fixed to the central region of the annular guide rail, and the temperature and humidity collector is spaced apart from the aerosol collector.

[0026] Beneficial effects: By placing the flexible components in the central area of ​​the annular guide rail, the temperature and humidity collector is separated from the aerosol collector, ensuring that the temperature and humidity collector and the aerosol probe maintain an appropriate distance and position, thus avoiding spatial interference between the aerosol collector and the temperature and humidity collector.

[0027] Secondly, the present invention also provides a detection system, comprising:

[0028] The space to be tested has multiple delivery ports on its side wall, and all of the delivery ports penetrate the side wall and connect to the outside.

[0029] A sampling device for spent fuel reprocessing plant, wherein at least one of the guide rails is located within the space to be tested.

[0030] Beneficial effects: Spraying aerosols into the space under test through delivery ports can effectively simulate the leakage of radioactive materials in a real space. Because multiple delivery ports are evenly distributed on the wall, the leakage process of radioactive materials at different locations in a real environment can be simulated. Furthermore, the amount of aerosol delivered through each port can be varied to better simulate real-world conditions.

[0031] In one alternative embodiment, the delivery port protrudes from the sidewall in a direction away from the space to be detected.

[0032] Beneficial effects: By setting the delivery port to protrude from the side wall, it is convenient to deliver aerosol into the space to be tested through the delivery port. At the same time, it is convenient to seal the delivery port with a sealing plug to ensure the airtightness of the space to be tested. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of a sampling device for a spent fuel reprocessing plant according to an embodiment of the present invention;

[0035] Figure 2 for Figure 1 A schematic diagram showing the connection between the support member, the rotating part, and the connecting member;

[0036] Figure 3 This is a schematic diagram showing the connection between the flexible support and the temperature and humidity collector in a sampling device for a spent fuel reprocessing plant according to an embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of another detection system according to an embodiment of the present invention;

[0038] Figure 5 for Figure 4 A cross-sectional view of the space to be inspected.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Guide rail; 101. Guide groove; 2. Space to be tested; 201. Side wall; 202. Delivery port; 3. Support component; 4. Rotating part; 401. Rotating shaft; 402. Rotating seat; 4021. Clamping cavity; 5. Connecting component; 501. Slide groove; 6. Aerosol collector; 7. Temperature and humidity collector; 8. Flexible support. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In related technologies, the spent fuel reprocessing plant, as a safety barrier, is a key factor in ensuring the safe operation of the plant and the safety of personnel. Typically, air samples are first taken from the spent fuel plant, followed by analysis of the samples and measurement of temperature and humidity within the room. This process determines the air quality and environmental conditions of the spent fuel reprocessing plant, providing a more accurate basis and direction for optimizing the ventilation system design and ensuring the safety of personnel entering the plant. However, simply sampling and measuring air quality and humidity within the spent fuel plant is insufficient for comprehensively, easily, and time-efficiently assessing the air quality and environmental conditions at different locations within the plant. Therefore, the sampling and testing method cannot provide an efficient and reliable basis for personnel entering the spent fuel plant for operations.

[0043] To solve the above technical problems, the following will be combined with... Figures 1 to 5 The following describes embodiments of the present invention.

[0044] According to an embodiment of the present invention, in one aspect, a sampling device for a spent fuel reprocessing plant is provided, including a guide rail 1, a support 3, a rotating part 4, a connecting part 5, an aerosol collector 6, and a temperature and humidity collector 7.

[0045] Specifically, such as Figure 1 As shown, the guide rail 1 is suitable for installation in the space 2 to be tested.

[0046] Specifically, such as Figure 1 As shown, one end of the support member 3 is movably mounted on the guide rail 1, and the support member 3 moves along the direction of the guide rail 1.

[0047] Specifically, such as Figure 1 and Figure 2 As shown, the rotating part 4 is rotatably disposed at the other end of the support member 3, that is, the rotating part 4 can rotate around the end of the support member 3.

[0048] Specifically, such as Figure 1 As shown, the connecting member 5 is connected to the rotating part 4. The connecting member 5 is movably mounted on the rotating part 4, that is, the connecting member 5 can move on the rotating part 4. The rotation of the rotating part 4 can drive the moving part to rotate together.

[0049] Specifically, such as Figure 1 As shown, the aerosol collector 6 is fixedly installed at the end of the connector 5, and the aerosol collector 6 is used to collect aerosols in the space to be tested 2.

[0050] Specifically, such as Figure 3 As shown, the temperature and humidity sensor 7 is located on one side of the guide rail 1.

[0051] This spent fuel reprocessing plant sampling device, through support component 3, rotating part 4, and connecting component 5, moves the aerosol collector 6 within the testing space 2 to collect and analyze data. A temperature and humidity collector 7 collects temperature and humidity data within the testing space 2. This allows for precise detection of air quality and environmental conditions at different locations within the testing space 2, providing accurate information for personnel entering the testing space 2. This facilitates subsequent work by personnel entering the testing space 2 when necessary, while ensuring that personnel are not exposed to excessive radiation doses. Simultaneously, it helps assess the airflow distribution of the ventilation system within the testing space 2 and adjusts the air exchange rate under different temperature and humidity requirements. This effectively controls the temperature and humidity distribution within the testing space 2, reduces the concentration of radioactive aerosols, provides a suitable working environment, and ensures the safety of personnel and operational efficiency.

[0052] The size of guide rail 1 can be set to correspond to the size of the space 2 to be tested. The specific size and setting method of guide rail 1 are not limited here; they can be set according to actual needs.

[0053] The length of the guide rail 1 can be increased or different sampling probes can be used to adapt to different sizes and characteristics of the space to be tested 2.

[0054] In one embodiment, such as Figure 1 As shown, a guide groove 101 is formed on the guide rail 1 along the direction of the guide rail 1. A slider is provided at the end of the support member 3 corresponding to the guide groove 101. The slider is located in the guide groove 101 and is adapted to move along the direction of the guide groove 101. By moving the slider in the guide groove 101, the support member 3 is driven to move along the direction of the guide groove 101, which in turn drives the aerosol collector 6 to move along the direction of the guide rail 1. This ensures accurate aerosol collection in each area of ​​the space to be tested 2, thereby enabling accurate detection of air quality and environmental conditions at different locations within the space to be tested 2.

[0055] A certain damping force can be set between the slider and the guide groove 101 to ensure that the support 3 can accurately stop at a certain position in the guide groove 101. The movement of the slider within the guide groove 101 can be driven by a driving component, for example, by a motor to drive the slider to slide within the guide groove 101.

[0056] In one embodiment, such as Figure 2As shown, the end of the support member 3 has a through hole corresponding to the connector 5. The rotating part 4 includes a rotating shaft 401 and a rotating seat 402. One end of the rotating shaft 401 passes through the through hole and is adapted to rotate within the through hole. The rotating seat 402 is fixed to the end of the rotating shaft 401, and the connector 5 moves on the rotating seat 402. By rotating the rotating shaft 401 within the through hole, the rotating seat 402 at the end of the rotating shaft 401 is driven to rotate, which in turn drives the connector 5 on the rotating seat 402 to rotate. This allows the aerosol collector 6 to rotate to different angles on the support member 3 to detect the space 2 under test, ensuring accurate aerosol collection in each area of ​​the space 2 under test, and thus enabling accurate detection of air quality and environmental conditions at different locations within the space 2 under test.

[0057] In one embodiment, such as Figure 2 As shown, a groove 501 is formed along the axial direction of the connector 5, and a clamping cavity 4021 is formed on the rotating seat 402. The connector 5 passes through the clamping cavity 4021, and a guide block is provided in the clamping cavity 4021 corresponding to the groove 501. The guide block is located in the groove 501. By guiding the groove 501 through the guide block, the connector 5 is adapted to slide in the clamping cavity 4021 to adjust the position of the aerosol collector 6. This allows the aerosol collector 6 to move in the rotating part 4 to detect the space 2 under test, ensuring accurate aerosol collection in each area of ​​the space 2 under test, and thus enabling accurate detection of air quality and environmental conditions at different locations in the space 2 under test.

[0058] In one embodiment, such as Figure 1 As shown, the two ends of the guide rail 1 are connected to form a ring guide rail 1. By setting the guide rail 1 as a ring guide rail 1, the aerosol collector 6 can move cyclically on the guide rail 1, and thus perform multiple detections on the same path in the detection space 2, ensuring the accurate collection and detection of aerosols in the detection space 2.

[0059] Among them, the annular guide rail 1 can be a circular annular guide rail 1 or a rectangular annular guide rail 1.

[0060] In one embodiment, such as Figure 1 As shown, the included angle of the guide rail 1 is provided with a transition arc. By setting the included angle of the guide rail 1 as an arc, the support 3 can slide smoothly at the included angle of the guide rail 1, and the support 3 can be prevented from getting stuck at the included angle of the guide rail 1.

[0061] In one embodiment, such as Figure 3 As shown, it also includes a flexible support 8, on which the temperature and humidity sensor 7 is fixed. By placing the temperature and humidity sensor 7 on the flexible support 8, it is easier to adjust the three-dimensional position of the temperature and humidity sensor 7 within the space to be tested 2, so that the temperature and humidity sensor 7 can be easily adjusted while being stably fixed at a precise position in the space to be tested 2.

[0062] The flexible support 8 can be a silicone support. Silicone is a soft, durable material with good plasticity and bending moment resistance. Its flexibility allows it to be bent arbitrarily in space, adapting to various shapes and angles. This means that silicone supports can be flexibly adjusted to suit different measurement angles and orientations. Whether bent into arcs, right angles, or other shapes, silicone can easily achieve this and maintain stability, resisting deformation or loosening. Furthermore, silicone has a high bending moment load-bearing capacity, providing excellent support and stability in model tests. Even when supporting a heavy measuring head, the silicone support remains sturdy and stable, resistant to bending or breakage, which is crucial for ensuring measurement accuracy and stability.

[0063] In one embodiment, such as Figure 4 As shown, one end of the flexible bracket 8 is fixed to the central area of ​​the annular guide rail 1, and the temperature and humidity sensor 7 and the aerosol sensor 6 are spaced apart. By placing the flexible bracket 8 in the central area of ​​the annular guide rail 1, the temperature and humidity sensor 7 and the aerosol sensor 6 are spaced apart, ensuring that the temperature and humidity sensor 7 and the aerosol sensor 6 maintain an appropriate distance and position, and avoiding spatial interference between the aerosol sensor 6 and the temperature and humidity sensor 7.

[0064] According to an embodiment of the present invention, on the other hand, such as Figure 4 and Figure 5 As shown, a detection system is also provided, including the space to be detected 2 and a sampling device for the spent fuel reprocessing plant.

[0065] Specifically, multiple delivery ports 202 are provided on the side wall 201 of the space to be tested. All delivery ports 202 penetrate the side wall 201 and connect to the outside. Staff can spray aerosol into the space to be tested through the delivery ports 202.

[0066] Specifically, at least one guide rail 1 is located within the space to be tested 2.

[0067] This detection system effectively simulates the leakage of radioactive materials in a real space by spraying aerosols into the space to be tested through delivery ports 202. Since multiple delivery ports 202 are evenly distributed on the wall, the system simulates the leakage process of radioactive materials at different locations in a real environment. Furthermore, the amount of aerosol delivered through each delivery port 202 can be adjusted to better simulate real-world conditions.

[0068] In one embodiment, such as Figure 5As shown, the delivery port 202 protrudes from the side wall 201 in a direction away from the space to be tested 2. By making the delivery port 202 protrude from the side wall 201, it is convenient to deliver aerosol into the space to be tested 2 through the delivery port 202. At the same time, it is convenient to seal the delivery port 202 with a sealing plug to ensure the airtightness of the space to be tested 2.

[0069] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A sampling device for a spent fuel reprocessing plant, characterized in that, include: The guide rail (1) is suitable for installation in the space to be tested (2); The support member (3) is movably mounted on the guide rail (1) at one end, and the direction of movement of the support member (3) is along the direction of the guide rail (1); The rotating part (4) is rotatably disposed at the other end of the support member (3); A connector (5) is connected to the rotating part (4), and the connector (5) is movably disposed on the rotating part (4); An aerosol collector (6) is fixed to the end of the connector (5); Temperature and humidity sensor (7) is located on one side of the guide rail (1).

2. The sampling device for spent fuel reprocessing plant according to claim 1, characterized in that, The guide rail (1) has a guide groove (101) along the direction of the guide rail (1); the end of the support member (3) is provided with a slider corresponding to the guide groove (101), the slider is located in the guide groove (101) and is adapted to move along the direction of the guide groove (101).

3. The sampling device for spent fuel reprocessing plant according to claim 1, characterized in that, The end of the support member (3) is provided with a through hole corresponding to the connector (5). The rotating part (4) includes a rotating shaft (401) and a rotating seat (402). The rotating shaft (401) passes through the through hole and is adapted to rotate within the through hole. The rotating seat (402) is fixed to the end of the rotating shaft (401). The connector (5) is movably mounted on the rotating seat (402).

4. The sampling device for spent fuel reprocessing plant according to claim 3, characterized in that, The connector (5) has a groove (501) along its axial direction, and the rotating seat (402) has a clamping cavity (4021). The connector (5) passes through the clamping cavity (4021). A guide block is provided in the clamping cavity (4021) corresponding to the groove (501). The guide block is located in the groove (501).

5. The sampling device for spent fuel reprocessing plant according to claim 1, characterized in that, The two ends of the guide rail (1) are connected to form a ring guide rail (1).

6. The sampling device for spent fuel reprocessing plant according to claim 5, characterized in that, The guide rail (1) has a transition arc at the included angle.

7. The sampling device for spent fuel reprocessing plant according to claim 6, characterized in that, It also includes a flexible support (8), on which the temperature and humidity collector (7) is fixed.

8. The sampling device for spent fuel reprocessing plant according to claim 7, characterized in that, One end of the flexible support (8) is fixed to the central area of ​​the annular guide rail (1), and the temperature and humidity collector (7) and the aerosol collector (6) are spaced apart.

9. A detection system, characterized in that, include: The space to be tested (2) has multiple delivery ports (202) on its side wall (201), and the multiple delivery ports (202) all penetrate the side wall (201) and communicate with the outside. The spent fuel reprocessing plant sampling device according to any one of claims 1 to 8, wherein at least one of the guide rails (1) is disposed within the space to be tested (2).

10. The detection system according to claim 9, characterized in that, The delivery port (202) protrudes from the side wall (201) in a direction away from the space to be tested (2).

Images